Product specifications

ManualsBrandsComtech EF Data ManualsComputer equipmentCDM-840

Part Number MN-CDM840 Revision 2

IMPORTANT NOTE: The information contained in this document supersedes all previously published

information regarding this product. Product specifications are subject to change without prior notice.

CDM-840

Advanced VSAT Series Remote Router

Installation and Operation Manual

For Firmware Version 1.5.1.X or higher

Summary of content (244 pages)

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CDM-840 Advanced VSAT Series Remote Router Installation and Operation Manual For Firmware Version 1.5.1.X or higher IMPORTANT NOTE: The information contained in this document supersedes all previously published information regarding this product. Product specifications are subject to change without prior notice.
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Errata A for MN-CDM840 Rev 2 Comtech EF Data Documentation Update Subject: Errata Part Number: PLM CO Number: Comments: ER-CDM840-EA2 Update Section B.2.2, Deleted Occupied Bandwidth data ER-CDM840-EA2 (Errata documents are not revised) C-0029457 See attached page(s). The new information will be included in the next released revision of the manual.
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ER-CDM840-EA2 Rev - PLM C-0029457
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CDM-840 Advanced VSAT Series Remote Router Installation and Operation Manual For Firmware Version 1.5.1.X or Higher Part Number MN-CDM840 Revision 2 Copyright © 2013 Comtech EF Data. All rights reserved. Printed in the USA. Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, 480.333.2200, FAX: 480.333.
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TABLE OF CONTENTS TABLE OF CONTENTS ............................................................................................................III TABLES .................................................................................................................................... X FIGURES ................................................................................................................................... X PREFACE ........................................................................
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CDM-840 Remote Router Table of Contents Revision 2 MN-CDM840 1.3 CDM-840 Features .............................................................................................................. 1–4 1.3.1 Physical Description .................................................................................................................. 1–4 1.3.2 Dimensional Envelope .............................................................................................................. 1–4 1.3.
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CDM-840 Remote Router Table of Contents 3.2.3.4 Revision 2 MN-CDM840 ‘ALARMS’ Interface Connector.......................................................................................... 3–9 3.3 CDM-840 Ground and Power Connections ......................................................................... 3–10 3.3.1 Chassis Ground Interface ........................................................................................................ 3–10 3.3.
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CDM-840 Remote Router Table of Contents Revision 2 MN-CDM840 6.4.2.5 Drop-down Lists ................................................................................................................ 6–8 6.4.2.6 Text or Data Entry ............................................................................................................. 6–8 6.4.3 Web Server Interface – Menu Tree .......................................................................................... 6–9 6.4.
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CDM-840 Remote Router Table of Contents CHAPTER 7. 7.1 Revision 2 MN-CDM840 SERIAL-BASED REMOTE PRODUCT MANAGEMENT ...............................7–1 Introduction ....................................................................................................................... 7–1 7.2 Remote Commands and Queries Overview .......................................................................... 7–3 7.2.1 Basic Protocol ...............................................................................
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CDM-840 Remote Router Table of Contents Revision 2 MN-CDM840 B.3 VersaFEC (Short-block LDPC) ...............................................................................................B–3 B.3.1 Range of Data Rates.................................................................................................................. B–4 B.4 CDM-840 Rx/Tx Error Performance Characteristics...............................................................B–4 APPENDIX C. C.
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CDM-840 Remote Router Table of Contents Revision 2 MN-CDM840 APPENDIX E. DATA COLLECTION ................................................................................... E–1 E.1 Introduction ....................................................................................................................... E–1 E.2 Initial Setup of Communications Between the CDM-840 and the User PC ............................. E–2 E.3 Collection of Pre-Reboot Diagnostic Information from the CDM-840 ............
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CDM-840 Remote Router Table of Contents Revision 2 MN-CDM840 TABLES Table 3-1. REDUNDANCY Connector Pinouts ........................................................................................... 3–7 Table 3-2. CONSOLE Connector Pinouts .................................................................................................. 3–8 Table 3-3. ALARMS Connector Pinouts .................................................................................................... 3–9 Table B-1.
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CDM-840 Remote Router Table of Contents Revision 2 MN-CDM840 Figure 6-14. Configuration | WAN | Demod | ACM Page ...................................................................... 6–30 Figure 6-15. Configuration | WAN | Mod | Config Page ........................................................................ 6–32 Figure 6-16. Configuration | Mod | ACM Page....................................................................................... 6–36 Figure 6-17. Configuration | WAN | QoS Page ..........
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CDM-840 Remote Router Table of Contents Revision 2 MN-CDM840 Figure D-1. Configuration | Routing | Routes page ..................................................................................D–3 Figure D-2. Configuration | WAN | Compression page ............................................................................D–4 Figure D-3. Configuration | WAN | MOD | ACM page ............................................................................D–5 Figure D-4. Status | Statistics | Compression page ..
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PREFACE About this Manual This manual provides installation and operation information for the Comtech EF Data CDM-840 Remote Router. This is an informational document intended for the persons responsible for the operation and maintenance of the CDM-840.
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CDM-840 Remote Router Preface Revision 2 MN-CDM840 A NOTE gives important information about a task or the equipment. A REFERENCE directs the user to additional information about a task or the equipment. Examples of Multi-Hazard Notices Recommended Standard Designations The new designation of the Electronic Industries Association (EIA) supersedes Recommended Standard (RS) designations. References to the old RS designations may be shown when depicting actual text (e.g.
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CDM-840 Remote Router Preface Revision 2 MN-CDM840 Sect 3.3 CDM-840 Ground and Power Connections Operating Environment DO NOT OPERATE THE UNIT IN ANY OF THESE EXTREME OPERATING CONDITIONS: • AMBIENT TEMPERATURES LESS THAN 0° C (32° F) OR MORE THAN 50° C (122° F). • PRECIPITATION, CONDENSATION, OR HUMID ATMOSPHERES OF MORE THAN 95% RELATIVE HUMIDITY. • UNPRESSURIZED ALTITUDES OF MORE THAN 2000 METRES (6561.7 FEET). • EXCESSIVE DUST. • FLAMMABLE GASES. • CORROSIVE OR EXPLOSIVE ATMOSPHERES.
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CDM-840 Remote Router Preface Revision 2 MN-CDM840 TO ENSURE THAT THE UNIT COMPLIES WITH THESE STANDARDS, OBEY THESE INSTRUCTIONS: • Use coaxial cable that is of good quality for connections to the L-Band Type ‘N’ Rx (receive) female connector. • Use Type 'D' connectors that have back-shells with continuous metallic shielding. Type ‘D’ cabling must have a continuous outer shield (either foil or braid, or both). The shield must be bonded to the back-shell.
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CDM-840 Remote Router Preface Revision 2 MN-CDM840 CE Mark Comtech EF Data declares that the unit meets the necessary requirements for the CE Mark. Product Support For all product support, please call: +1.240.243.1880 +1.866.472.3963 (toll free USA) Comtech EF Data Headquarters http://www.comtechefdata.com Comtech EF Data Corp. 2114 West 7th Street Tempe, Arizona USA 85281 +1.480.333.
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CDM-840 Remote Router Preface Revision 2 MN-CDM840 Warranty Policy Comtech EF Data products are warranted against defects in material and workmanship for a specific period from the date of shipment, and this period varies by product. In most cases, the warranty period is two years. During the warranty period, Comtech EF Data will, at its option, repair or replace products that prove to be defective.
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CDM-840 Remote Router Preface Revision 2 MN-CDM840 The warranty excludes any responsibility by Comtech EF Data Corporation for incidental or consequential damages arising from the use of the equipment or products, or for any inability to use them either separate from or in combination with any other equipment or products.
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CDM-840 Remote Router Preface Revision 2 MN-CDM840 Notes: xx
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Chapter 1. INTRODUCTION 1.1 Overview Figure 1-1. CDM-840 Remote Router The CDM-840 Remote Router (Figure 1-1) is a point-to-multipoint router. It serves as the “spoke” or remote site equipment component of Comtech EF Data’s Advanced VSAT Series group of products. Feature A B Description Hub Site Typical Remote Site Cluster Figure 1-2.
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CDM-840 Remote Router Introduction Revision 2 MN-CDM840 network environments that require high-performance, high-quality IP transport with “alwayson” availability. The CDM-840 features one 10/100/1000 Gigabit Ethernet (GigE) interface, one 10/100 Fast Ethernet (FE) interface, and provides WAN bandwidth optimization. It also features integrated VersaFEC, a patented system of short-block codes that provide maximum coding gain with lowest possible latency. • • 1.2 Sect. 1.3 CDM-840 Features Sect. 1.
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CDM-840 Remote Router Introduction o Revision 2 MN-CDM840 ACM allows the modulator to automatically and seamlessly adjust the transmitted MODCOD as the environmentally conditions change to maintain QEF (Quasi Error Free) operation. On the Tx (transmit) side: The return modulator transmits IP datagrams and is compatible with Comtech EF Data’s CDD-880 Multi-Receiver Router(s) located at a hub site. In the FEC encoder, the data is differentially encoded, scrambled, and then VersaFEC-encoded.
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CDM-840 Remote Router Introduction 1.3 1.3.1 Revision 2 MN-CDM840 CDM-840 Features Physical Description The CDM-840 Remote Router is constructed as a 1RU-high rack-mounting chassis. Handles at the front facilitate removal from and placement into a rack. The unit can be freestanding if desired. • • 1.3.2 Sect. 1.4 CDM-840 Specifications Sect. 2.1 Installation into a Rack Enclosure Dimensional Envelope Figure 1-3.
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CDM-840 Remote Router Introduction 1.3.3 Revision 2 MN-CDM840 CDM-840 Physical Features 1.3.3.1 Front Panel Figure 1-4. CDM-840 – Front Panel View The CDM-840 Remote Router front panel (Figure 1-4) features eight Light-Emitting Diode (LED) indicators.
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CDM-840 Remote Router Introduction 1.3.3.2 Revision 2 MN-CDM840 Rear Panel PROPER GROUNDING PROTECTION IS REQUIRED. The equipment must be connected to the protective earth connection at all times. It is therefore imperative that the unit is properly grounded, using the ground stud provided on the unit rear panel, during installation, configuration, and operation. • • Sect. 3.2 CDM-840 Cabling Connections Sect. 3.
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CDM-840 Remote Router Introduction 1.3.3.2.2 Revision 2 MN-CDM840 Rear Panel Optional Features The unit provides the following Data Interfaces for optional hardware and/or FAST-enabled operation: • (2X) Type ‘BNC’ female connectors labeled “G.703 | IN / OUT” are provided for operation of the optional G.703 E1 Interface / RAN Optimization FAST Feature upgrade.
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CDM-840 Remote Router Introduction 1.4 Revision 2 MN-CDM840 CDM-840 Specifications 1.4.
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CDM-840 Remote Router Introduction Revision 2 MN-CDM840 Item Description Supported Protocols RFC 768 – UDP RFC 791 – IP RFC 792 – ICMP RFC 793 – TCP RFC 826 – ARP RFC 856 – Telnet RFC 862 – Ping RFC 894 – IP RFC 959 – FTP RFC 1112 – IP Multicast RFC 1213 – SNMP MIB II RFC 1812 – IPv4 Routers RFC 2045 – MIME RFC 2474 – DiffServ RFC 2475 – DiffServ RFC 2578 – SMI RFC 2597 – AF PHB RFC 2598 – Expedite Forwarding RFC 2616 – HTTP RFC 3412 – SNMP RFC 3416 – SNMPv2 RFC 3418 – SNMP MIB Description Item Ou
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CDM-840 Remote Router Introduction Item Description VersaFEC CODEC BER 16QAM (With two adjacent carriers, each 7 dB higher than the desired carrier) Monitor Functions 1.4.3 Revision 2 MN-CDM840 Rate 0.731 16QAM Guaranteed Eb/No (typical value in parentheses): Rate 0.780 16QAM Guaranteed Eb/No (typical value in parentheses): Rate 0.829 16QAM Guaranteed Eb/No (typical value in parentheses): For: BER=10-5 6.4 dB (6.1 dB) 7.0 dB (6.7 dB) 7.5 dB (7.2 dB) BER=10-8 6.6 dB (6.3 dB) 7.3 dB (7.0 dB) 7.
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Chapter 2. INSTALLATION 2.1 Unpacking and Inspecting the Shipment Figure 2-1. Unpacking and Inspecting the Shipment The CDM-840 Remote Router, its Installation and Operation Manual, and its power cord were packaged and shipped in a reusable cardboard carton containing protective foam spacing. This equipment contains parts and assemblies sensitive to damage by Electrostatic Discharge (ESD). Use ESD precautionary procedures when handling the equipment.
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CDM-840 Remote Router Installation Revision 2 MN-CDM840 Once opened, inspect the shipment (Figure 2-1): Step 2.2 Task 1 Keep all shipping materials for storage or reshipment. 2 Check the packing list to ensure the shipment is complete. 3 Inspect the equipment for any possible damage incurred during shipment. Contact the carrier and Comtech EF Data immediately to submit a damage report if damage is evident.
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CDM-840 Remote Router Installation Feature Revision 2 MN-CDM840 Description 1 Custom Rack Enclosure 2 CDM-840 Remote Router 3 Standard Rack Shelving Rack Enclosure Threaded Front Mounting Rail (typical) Unit Front Panel User-supplied Screws 4 5 6 Figure 2-2. Installing the CDM-840 into a Rack Enclosure Mount the CDM-840 in its assigned position in the rack enclosure.
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CDM-840 Remote Router Installation Revision 2 MN-CDM840 2.2.
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CDM-840 Remote Router Installation Revision 2 MN-CDM840 Tools needed to install the KT-0000168 (4”) or KT-0000195 (10”) Bracket Kit (Figure 2-3): • A medium Phillips screwdriver • A 5/32-inch SAE Allen Wrench • An adjustable Crescent wrench. Follow these steps to install the Radyne-style chassis kit: Step Description 1 Assemble the Adapter Plates to the back side of the CDM-840 chassis using the #10 Flat Head Screws.
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CDM-840 Remote Router Installation Revision 2 MN-CDM840 Notes: 2–6
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Chapter 3. REAR PANEL CONNECTIONS 3.1 Cabling Connection Types The CDM-840 Remote Router uses a number of different cables. Each cable type is typically dedicated to a specific mode of operation. Not all of these operational interface types may be available with this product. 3.1.1 Coaxial Cable Connections Coupling Type Connector Type Plug Jack Bayonet (Type ‘BNC’ shown) Threaded (Type ‘N’ shown) Figure 3-1.
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CDM-840 Remote Router Rear Panel Connections Revision 2 MN-CDM840 • Bayonet Coupling Style: The jack has a pair of guide posts that accommodate the plug’s lockdown slots. This lockdown design provides secure assembly without over-tightening the connection. • Threaded Coupling Style: The jack features external threads. The plug shell features internal threads, and has either a knurled outer surface to permit hand-tightening of the connection, or hex flats to accommodate torqued installation.
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CDM-840 Remote Router Rear Panel Connections 3.1.1.4 Revision 2 MN-CDM840 Type ‘F’ Type ‘F’ connectors feature a Threaded Coupling design similar to Type ‘TNC’, Type ‘N’, and Type ‘SMA’ connectors. 3.1.1.5 Type ‘SMA’ (Subminiature Version ‘A’) Type ‘SMA’ connectors feature a Threaded Coupling design similar to Type ‘TNC’, Type ‘N’, and Type ‘F’ connectors. 3.1.
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CDM-840 Remote Router Rear Panel Connections Revision 2 MN-CDM840 Connection Instructions: Orient the plug to the receptacle in the proper position. Press firmly into place. Use the jack screws to secure the plug to the receptacle jack nuts. Do not overtighten. 3.1.3 Circular Cable Connections Circular connectors are intended for weatherproof outdoor applications. The connector pairs feature a sleeve lock configuration, with an array of pins (male side) coupled to mating sockets (female side).
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CDM-840 Remote Router Rear Panel Connections 3.2 Revision 2 MN-CDM840 CDM-840 Cabling Connections (Top) Standard AC Unit (Bottom) Optional 48V DC Unit Figure 3-3. CDM-840 Cabling Connections The CDM-840 rear panel connectors, shown here in Figure 3-3 provide all necessary external connections between the unit and other equipment. The table that follows summarizes the connectors provided here, grouped according to service function. Sect. Service Type Connector Name 3.2.1 3.2.2 3.2.
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CDM-840 Remote Router Rear Panel Connections 3.2.1 Revision 2 MN-CDM840 IF Connector Group THERE MAY BE DC VOLTAGES PRESENT ON THE TYPE ‘N’ RX AND TX IF CONNECTORS, UP TO A MAXIMUM OF 48 VOLTS. 3.2.1.1 3.2.1.2 3.2.2 3.2.2.
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CDM-840 Remote Router Rear Panel Connections 3.2.3 3.2.3.1 3.2.3.2 Revision 2 MN-CDM840 Utility Connector Group ‘MANAGEMENT | FE’ (Fast Ethernet) Connector Connector Type Name Direction RJ-45 female modular jack TRAFFIC | GE In/Out • This interface operates at 10/100 Mbps, half and full duplex, auto-negotiating.
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CDM-840 Remote Router Rear Panel Connections 3.2.3.3 Revision 2 MN-CDM840 ‘CONSOLE’ Interface Connector Connector Type Name Type ‘D’ 9-pin male CONSOLE Direction In/Out This interface is used for EIA-232 communications. It is intended for connection to an M&C computer or VT (Video Terminal) device. Table 3-2.
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CDM-840 Remote Router Rear Panel Connections 3.2.3.4 Revision 2 MN-CDM840 ‘ALARMS’ Interface Connector Connector Type Name Direction Type ‘D’ 15-pin male ALARMS In/Out Pin 2 of this connector provides an analog signal to aid antenna pointing or for driving step-track equipment. The analog signal will be zero volts when the unit is not locked to a carrier. When locked to a carrier the analog signal will be 1 volt for Es/No values less than or equal to -4.
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CDM-840 Remote Router Rear Panel Connections 3.3 3.3.1 Revision 2 MN-CDM840 CDM-840 Ground and Power Connections Chassis Ground Interface PROPER GROUNDING PROTECTION IS REQUIRED. The equipment must be connected to the protective earth connection at all times. It is therefore imperative that the unit is properly grounded, using the ground stud provided on the unit rear panel, during installation, configuration, and operation. (Top) Standard AC Unit (Bottom) Optional 48V DC Unit Figure 3-4.
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CDM-840 Remote Router Rear Panel Connections 3.3.2 Revision 2 MN-CDM840 115V/230V Alternating Current (AC) Power Interface (Standard) Feature Description 1 On / Off Switch 2 Press-fit Fuse Holder 3 IEC Three-prong Connector AC Power Specifications Input Power 40W maximum, 20W typical (without BUC) 245W maximum (with BUC) Input Voltage 100V to 240V AC, +6%/-10%, autosensing (total absolute max.
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CDM-840 Remote Router Rear Panel Connections 3.3.2.2 Revision 2 MN-CDM840 AC Operation – Replacing Fuses The CDM-840 uses two 5mm x 20mm Slow-blow fuses – one each for line and neutral connections. The fuses are contained within a fuse holder that is press-fit into the body of the power supply module located on the rear panel (Figure 3-7). Figure 3-7.
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CDM-840 Remote Router Rear Panel Connections 3.3.3 Revision 2 MN-CDM840 48V Direct Current (DC) Power Interface (Optional) Feature Description 1 On / Off Switch 2 Screw-in Fuse Holders / Receptacles 3 Power Terminal Block DC Power Specifications Input Power 25W (typical) 245W (maximum with BUC) Input Voltage 48V DC, nominal (36V to 60V) Connector Type Terminal Block Fuse Protection (2X) 5mm x 20mm Slow-blow type fuses: T3A (3.0A) Main T5A (5.0A) (BUC) Figure 3-8.
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CDM-840 Remote Router Rear Panel Connections 3.3.3.2 Revision 2 MN-CDM840 DC Operation – Replacing Fuses The fuses are contained within individual screw-in receptacles located below the power supply terminal block (Figure 3-10). Figure 3-10. Replacing CDM-840 DC Fuses To replace the fuses: DISCONNECT THE POWER SUPPLY BEFORE PROCEEDING! • First, unscrew either fuse holder from its receptacle.
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Chapter 4. UPDATING FIRMWARE 4.1 Updating Firmware via the Internet TO ENSURE OPTIMAL PERFORMANCE, IT IS IMPORTANT TO OPERATE THE CDM-840 WITH ITS LATEST AVAILABLE FIRMWARE. The CDM-840 Remote Router is factory-shipped with the latest version of operating firmware. Firmware updates may be applied to an in-service CDM-840 without having to remove the chassis cover.
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CDM-840 Remote Router Updating Firmware 4.2 Revision 2 MN-CDM840 Getting Started: Preparing for the Firmware Download 1. First, identify the CDM-840 assigned Management IP Address, and the firmware number/revision letter/version number. User-supplied items needed: • A Microsoft Windows-based PC, equipped with available serial and Ethernet ports; a compatible Web browser (e.g., Internet Explorer); and a terminal emulator program (e.g., Tera Term or HyperTerminal).
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CDM-840 Remote Router Updating Firmware • • • Revision 2 MN-CDM840 Management IP Address (e.g., default is 192.168.1.12/24) Firmware Number and Revision Letter (e.g., FW-0000408W) Firmware Release Version (e.g., 1.5.1.X) See Chapter 7. SERIAL-BASED REMOTE PRODUCT MANAGEMENT for information and instructions on using the CDM-840 Serial Interface. E. Alternately, use the CDM-840 Web Server Interface to obtain the firmware information.
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CDM-840 Remote Router Updating Firmware • Revision 2 MN-CDM840 Right-click on the new folder and then select “Rename” from the popup submenu. Rename this folder to "temp" or some other convenient, unused name. B. Use Windows Explorer to create and rename the temporary folder. • Select File > New > Folder to create the temporary folder. The new folder will be created in the active folder.
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CDM-840 Remote Router Updating Firmware Revision 2 MN-CDM840 D. Use Windows Command-line to create the temporary folder. • First, click [Start] on the Windows taskbar, and then click the Run... icon (or, depending on Windows OS versions prior to Windows 95, click the MS-DOS Prompt icon from the Main Menu). • Next, open a Command-line window… o For Windows 95 or Windows 98, type “command”. o For any Windows OS versions later than Windows 98, type “cmd” or “command”.
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CDM-840 Remote Router Updating Firmware 4.3 Revision 2 MN-CDM840 Downloading and Extracting the Firmware Update 1. First, download the firmware update file from the Comtech EF Data Web site: A. Go online to www.comtechefdata.com. B. On the Main page – under Support Information or the Support tab, select the Software Downloads hyperlink. C. On the Software Downloads page – click Download Flash and Software Update Files. D.
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CDM-840 Remote Router Updating Firmware Revision 2 MN-CDM840 o Click [Open] to turn over file extraction to the user-supplied utility program. Be sure to extract the firmware files to the “temp” folder created earlier. o Click [Save] to open the ‘Save As’ window. Be sure to select and [Save] the archive *.exe or *.zip file to the “temp” folder created earlier. o Otherwise, click [Cancel] to quit and exit the file download process. 2. Next, extract the firmware files from the archive file.
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CDM-840 Remote Router Updating Firmware • Revision 2 MN-CDM840 Type “dir” to list the files extracted to the temporary directory from the downloaded archive file. The firmware files have been successfully downloaded and are now available for transfer to the CDM-840. 4.
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CDM-840 Remote Router Updating Firmware • Revision 2 MN-CDM840 Once the Management IP Address is known – use Command-line to PING: Type “ping xxx.xxx.xxx.xxx” at the Command-line prompt (where ‘xxx.xxx.xxx.xxx’ denotes the unit Management IP Address). The response should confirm whether or not the unit is properly connected and communicating. 2. Use Command-line to transfer (FTP) the files from the user PC to the CDM-840: • Type "ftp xxx.xxx.xxx.xxx" (where ‘xxx.xxx.xxx.
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CDM-840 Remote Router Updating Firmware Revision 2 MN-CDM840 B. Reboot the CDM-840: • Go to either the CDM-840 Web Server Interface ‘Admin | Firmware’ page or the ‘Utility | Reboot’ page. • Click [Reboot] (in the System Reboot section) and [OK] when prompted, and then wait while the CDM-840 reboots. The CDM-840 is now operating with its latest firmware. The firmware update process is now complete.
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Chapter 5. FAST ACTIVATION PROCEDURE 5.1 Introduction The CDM-840 Remote Router incorporates a number of optional features. In order to permit a lower initial cost, you may purchase the unit with only the desired features enabled. If you wish to upgrade the functionality of a unit at a later date, Comtech EF Data provides Fully Accessible System Topology (FAST), which permits the purchase and activation of options through special authorization codes.
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CDM-840 Remote Router FAST Activation Procedure 5.2 Revision 2 MN-CDM840 FAST Activation via the Web Server Interface See Sect. 6.4.4.2.3 Admin | FAST for the complete information on activating FAST Features via the CDM-840 Web Server Interface. Use the Web Server Interface ‘Admin | FAST’ page to manage CDM-840 FAST Features. This page provides scrollable list boxes that display the availability and activation status for all FAST options. FAST code entry/option activation control is also provided.
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CDM-840 Remote Router FAST Activation Procedure Revision 2 MN-CDM840 5.2.1 FAST Configuration The read-only table in this section displays the CDM-840 available FAST Features and the operational status for each option: Column Description Option This column lists each available FAST Feature. Status This column identifies each F AST F eature operational parameter(s). If an opt ion is not enabled, the column displays this information.
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CDM-840 Remote Router FAST Activation Procedure Revision 2 MN-CDM840 5.2.2 FAST Upgrade To perform the CDM-840 FAST option upgrade, follow these steps: Step Task 1 Use the FAST Configuration table to view the currently installed features. Any options that appear as Disabled in the table’s Status column may be purchased as a FAST upgrade. 2 The serial number of the CDM-800 is required by Comtech EF Data when ordering FAST option upgrades.
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Chapter 6. ETHERNET-BASED REMOTE PRODUCT MANAGEMENT 6.1 Introduction Ethernet-based Remote Product Management is available through the CDM-840 rear panel ‘MANAGEMENT | FE’ RJ-45 10/100 BaseT Fast Ethernet M&C port. 1. TO PROCEED WITH ETHERNET-BASED REMOTE PRODUCT MANAGEMENT (SNMP OR WEB SERVER), ASSUMPTIONS ARE MADE THAT: • The CDM-840 is operating with the latest version firmware files.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.2 Revision 2 MN-CDM840 Ethernet Management Interface Protocols The user PC facilitates access to Ethernet-based remote monitor and control (M&C) of the CDM-840 through two separately-operated protocols: • Simple Network Management Protocol (SNMP). This non-secure interface requires a usersupplied Network Management System (NMS) and a user-supplied Management Information Base (MIB) File Browser. • The CDM-840 Web Server (HTTP) Interface.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.3 Revision 2 MN-CDM840 SNMP Interface The Simple Network Management Protocol (SNMP) is an Internet-standard protocol for managing devices on IP networks. An SNMP-managed network consists of three key components: • The managed device. This includes the CDM-840 Outdoor Remote Router. • The SNMP Agent. The software that runs on the CDM-840. The CDM-840 SNMP Agent supports both SNMPv1 and SNMPv2c.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 Two Community Strings are defined for SNMP access: • Read Community default = public • Write Community default = private For proper SNMP operation, the CDM-840 MIB files must be used with the associated version of the CDM-840 Outdoor Remote Router M&C. Refer to the CDM840 FW Release Notes for information on the required FW/SW compatibility. 6.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 6.4.2 Web Server Interface – Operational Features 6.4.2.1 Virtual Front Panel The CDM-840 Web Server Interface features a read-only ‘Virtual Front Panel’ (VFP) at the top of each page (Figure 6-1). The interface appearance differs based on the selected viewing mode – default or Enhanced Mode. (TOP) Virtual Front Panel in default mode (BOTTOM) Virtual Front Panel in Enhanced Mode Figure 6-1.
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CDM-840 Remote Router Ethernet-based Remote Product Management Step Revision 2 MN-CDM840 Task 1 On the Tools menu, click Internet Options. 2 On the General tabbed page: Under Browsing history, click [Settings]. 3 On the Temporary Internet Files and History Settings page: Under Check for Newer Versions of Stored Pages:, click Every Time I visit the webpage. 4 Click [OK] to save the selection and close the Temporary Internet Files and History Settings page.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.2.2 Revision 2 MN-CDM840 Navigation The CDM-840 Web Server Interface provides navigation aids at the top of each page, just below the Virtual Front Panel: • In default mode, hyperlinks are provided. After you click a navigation hyperlink, you may click an available primary page hyperlink. In turn, any nested hyperlinks appear for further selection. • In Enhanced Mode, navigation tabs are provided.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.2.5 Revision 2 MN-CDM840 Drop-down Lists A drop-down list lets you choose from a list of selections. Left-click the drop-down button to open the list. Then, left-click on an item to select that choice. 6.4.2.6 Text or Data Entry Text boxes let you type data into a field. An action button may be associated with a single text box, or a group of text boxes.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 6.4.3 Web Server Interface – Menu Tree 1. Any diagram block that is marked with (*) denotes a page that is functional only when that particular FAST feature has been purchased and activated. Diagram blocks marked with (**) denote pages that are functional only when a VIPERSAT MANAGEMENT SYSTEM (VMS), and a Block Upconverter (BUC) OR a Low Noise Block Downconverter (LNB) is installed and is recognized as operational. 2.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 6.4.4 Web Server Interface Page Descriptions 1. Access to and availability of certain CDM-840 Web Server Interface pages is dependent upon the FAST options purchased for operation as well as the detected presence of auxiliary products (e.g., VMS, Redundancy Switches, LNBs or BUCs, etc.) installed and configured for use with the CDM-840. Such operational restrictions are noted through the remainder of this chapter. 2.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.1.2 Revision 2 MN-CDM840 Home | Contact For all product support, please call: +1.240.243.1880 +1.866.472.3963 (toll free USA) 6.4.4.2 Admin (Administration) Pages Use these pages to set up user access, manage the firmware load preferences, and activate FAST features. Click the Admin tab, and then select the Access, SNMP, FAST, Firmware, Auto Logout, or VMS tab to continue. 6.4.4.2.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.3 Revision 2 MN-CDM840 Admin | SNMP Sect. 6.3 SNMP Interface The Administrator must use this page to manage the CDM-840 SNMP (Simple Network Management Protocol) settings. Figure 6-4. Admin | SNMP Page SNMP Configuration • Enter the SNMP Trap Destination IP Address, in the form XXX.XXX.XXX.XXX, of the computer that is to receive the traps generated by the CDM-840. Click [Submit] to save. • Enter an SNMP Read Community string.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.3.1 Revision 2 MN-CDM840 Admin | FAST See Chapter 5. FAST ACTIVATION PROCEDURE for complete details and instructions for upgrading the CDM-840 Remote Router FAST features. 1. Tx Header and Payload Compression and Quality of Service (QoS)/Advanced QoS are standard (non-FAST) operational features for Comtech EF Data’s Advanced VSAT Series group of products.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.4 Revision 2 MN-CDM840 Admin | Firmware Chapter 4. UPDATING FIRMWARE Use this page to select which image (boot Slot #) is to be designated as the active running firmware image – i.e., the version loaded for operation upon power-up or soft reboot. Figure 6-6. Admin | Firmware Page Slot Information This read-only status section displays operating status for the firmware versions loaded into Slot #1 and Slot #2.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.4.1 Revision 2 MN-CDM840 Admin | Auto Logout Use this page to incorporate the Auto Logout security measure. Figure 6-7. Admin | Auto Logout Page Auto Logout Configuration Set an automatic logout time to safeguard access to an already logged-in unit: • Enter a value from 1 to 15 minutes into the Logout Time box to configure this feature. • Enter a value of 0 to disable this feature.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.4.2 Revision 2 MN-CDM840 Admin | VMS VMS v3.x.x VIPERSAT Management System User Guide (CEFD P/N MN/22156) Figure 6-8. Admin | VMS Page Vipersat Management System Configuration The acceptable/valid operating ranges for items in this section are provided in parentheses. • Network ID (1-254) – The Network ID designation defines to which network the CDM-840 belongs. All devices in a common network will have the same network ID.
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CDM-840 Remote Router Ethernet-based Remote Product Management • Revision 2 MN-CDM840 Management Multicast IP Port – The Multicast Address is the NMS Multicast IP address assigned to all CDM-840s in the Vipersat network that are managed by the VMS. This address must match the VMS Transmit Multicast Address. Typical for each item, click [Submit] to save.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.5 Revision 2 MN-CDM840 Configuration Pages 1. The BUC and LNB tabs are functional ONLY when those optional products are installed. 2. Precision Time Protocol is not available in this firmware release. The PTP tab, while available and selectable on this interface, is therefore non-functional. Use the nested Configuration pages to configure all unit parameters.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 FE – Management Interface The acceptable/valid operating ranges for items in this section are provided in parentheses. • MAC Address (read-only) – The Ethernet MAC Addresses are configured at the factory and cannot be changed. This address is unique for each available port. • IP Address / CIDR Mask (8 to 30) – Use this box to enter the IP Address and CIDR (Classless Inter-Domain Routing) Subnet Mask.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.5.1.2 Revision 2 MN-CDM840 Configuration | Interface | GE 1. The IP Addresses for the FE and GigE Interfaces must be different and on separate subnets. 2. The GE port will not have an IP address when BPM Working Mode is active. Use this page to configure the rear panel ‘GE’ 10/100/1000 BaseT Gigabit Ethernet port. This port should be connected to the user LAN network, and is used for user Ethernet traffic. Figure 6-10.
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CDM-840 Remote Router Ethernet-based Remote Product Management • Revision 2 MN-CDM840 VLAN Access Mode forces the Traffic Interface to carry traffic for only one userconfigured VLAN. Access Port VLAN ID – Enter a valid numeric port ID, from 1 to 4095. This ID is valid only when Working Mode is set as BPM and the VLAN Port Mode is set to Access.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.5.1.3 Revision 2 MN-CDM840 Configuration | Interface | E1 Pages Appendix G. WAN/RAN OPTIMIZATION These pages are functional only when the ‘G.703 E1 Interface / RAN Optimization’ FAST and hardware options are installed and activated. Click the Configuration | Interface | E1 tabs, and then select the Configuration or Time Slots tab to continue. 6.4.4.5.1.3.1 Configuration | Interface | E1 | Configuration Figure 6-11.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 Click [Submit] to save any changes made to the E1 Configuration settings. RAN Optimization Appendix G. WAN/RAN OPTIMIZATION Use RAN Optimization to reduce the satellite bandwidth required for mobile backhaul. Use this section to select the level of optimization needed to achieve the desired link quality and bandwidth savings. • Hub RAN Optimizer IP Address – Enter an IP address in the form XXX.XXX.XXX.XXX.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 6.4.4.5.1.3.2 Configuration | Interface | E1 | Time Slots Figure 6-12. Configuration | Interface | E1 | Time Slots Page Time Slot Configuration Time Slots may be selected for transmission or reception up to the maximum dictated by the selected transmit or receive data rate, and may be selected in prioritized order.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.5.2 Revision 2 MN-CDM840 Configuration | WAN Pages The BUC and LNB tabs are functional ONLY when those optional products are installed. Click the Configuration | WAN tabs, and then select the Demod, Mod, QoS, Label, Compression, BUC, or LNB tab to continue. 6.4.4.5.2.1 Configuration | WAN | Demod (Demodulator) Pages Click the Configuration | WAN | Demod tabs, and then select the Config or ACM tab to continue. 6.4.4.5.2.1.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 Demodulator The upper range of Symbol Rate selection requires activation of the RECEIVE SYMBOL RATE FAST option. The acceptable/valid operating range for each item in this section is provided in parentheses. • Data Rate (read-only) – This section displays the data rate, which is a snap shot of the MODCOD currently being received. • Symbol Rate (1000 to 62000) – Enter the Active and Alternate symbol rates in ksps.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 • Gold Code (000000 to 262141) – The Gold-n Index descrambling code indicates the Physical Layer spreading sequence number. The default setting is all 0s. • Es/No Alarm Point (0.1 to 16.0) –This value, as calculated by the demodulator, is the energy per symbol bit (Es) divided by the noise spectral density (No). Enter the Es/No Alarm Point value, in dB. Click [Submit] to save.
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CDM-840 Remote Router Ethernet-based Remote Product Management Step Revision 2 MN-CDM840 Task 5 If the initial attempt fails, then the demod will switch back and forth between the Active and t he Alternate configuration until lock is achieved. This will occur every “Search Switch Timer” seconds. 6 Once a l ock oc curs, t he s uccessful c onfiguration bec omes t he “ Active” c onfiguration and t he ot her configuration becomes the “Alternate” configuration.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 Demodulator Frequency The Demodulator Frequency Calculator provided here allows you to start from either the Rx RF or Rx L-Band/IF Frequency and calculate the “other” frequency. If the LNB LO Mix, LNB LO Frequency, and one of the desired frequencies are known, then the other can be calculated.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 6.4.4.5.2.1.2 Configuration | WAN | Demod | ACM (Adaptive Coding and Modulation) VersaFEC ACM requires Version 1.3.2 (or higher) firmware, and the appropriate FAST code for the maximum operating symbol rate. Use this page to configure CDM-840 Rx ACM operations.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 If an CDM-840 Remote Router reports that its demod is unlocked, the ACM Controller will assign the lowest MODCOD (QPSK ¼) to that remote in an effort to “recover” the remote. Once the remote locks again, the ACM algorithm adapts to the correct MODCOD for the reported Rx Es/No. • A packet path is required from the CDM-840 to the CTOG-250 Management interface.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.5.2.2 Revision 2 MN-CDM840 Configuration | WAN | Mod (Modulator) Pages Click the Configuration | WAN | Mod tabs, and then select the Config or ACM tab to continue. 6.4.4.5.2.2.1 Configuration | WAN | Mod | Config Use this page to configure CDM-840 Tx modulator operations. Figure 6-15.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 Modulator The upper range of Data and Symbol Rate selection requires activation of the TRANSMIT DATA RATE FAST option. The acceptable/valid operating range for each item in this section is provided in parentheses. • Data Rate (16 to 15343 kbps) – Enter The CDM-840 Tx Data Rate in kbps. Click [Submit] to save.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 • Tx Scrambler – Use the drop-down list to select the Tx Scrambler as Off or Normal. • Roll Off – The Tx Alpha Rolloff (α) dictates how fast the spectral edges of the carrier are attenuated beyond the 3 dB bandwidth. With 20% rolloff the edge falls off more quickly than with 25% and 35%. Use the drop-down list to set the expected filter Tx Alpha Rolloff (α) of the carrier as 20%, 25%, or 35%.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 Modulator Frequency The Tx Frequency Calculator provided here conveniently allows you to start from either the Tx RF or Tx L-Band/IF Frequency and calculate the “other” frequency. If the BUC LO Mix, BUC LO Frequency, and one of the desired frequencies are known, then the other can be calculated.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 6.4.4.5.2.2.2 Configuration | WAN | Mod | ACM VersaFEC ACM requires Version 1.3.2 (or higher) firmware, and the appropriate FAST code for the maximum operating symbol rate. Use this page to configure CDM-840 Tx ACM operations. Figure 6-16. Configuration | Mod | ACM Page Tx ACM Configuration • ACM Enable – Use the drop-down list to Disable or Enable Tx ACM operation.
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CDM-840 Remote Router Ethernet-based Remote Product Management • Revision 2 MN-CDM840 o VersaFEC MODCOD 4 – QPSK 0.803 o VersaFEC MODCOD 10 – 16-QAM 0.829 o VersaFEC MODCOD 5 – 8-QAM 0.642 o VersaFEC MODCOD 11 – 16-QAM 0.853 Target Es/No Margin (0.0 to 4.5) – Use the drop-down list to select a margin value, in 0.5 dB increments. The ACM system is designed to switch based on thresholds that correspond to a BER of 5 x 10-8 for each MODCOD.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.5.2.3 Revision 2 MN-CDM840 Configuration | WAN | QoS The ADVANCED QUALITY OF SERVICE FAST feature, once activated, is available only when the standard QoS feature is enabled. The appearance of this page changes depending on the selected QoS Control Mode. (TOP) QoS Control Mode = OFF (BOTTOM) QoS Control Mode = Diffserv (Banner, VFP, Menu Bar not shown) Figure 6-17.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 (TOP) QoS Control Mode = Max/Pri (BOTTOM) QoS Control Mode = Min/Max (Banner, VFP, Menu Bar not shown) Figure 6-18. Configuration | WAN | QoS Page (cont.) Click the (Link to QoS Statistic page) hyperlink to access the Status | Statistics | QoS page (Sect. 6.4.4.5.2.3).
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 QoS Control The QoS Control section is typical for all active QoS configurations. • • Mode – Use the drop-down list to select the mode of QoS operation: Mode Description Off This mode disables QoS. Instead of an oper able page, the Configuration | WAN | QoS page appears as shown at top in Figure 6-17.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 From left to right: Column Description Index The automatically-assigned specific rule internal index number is identified here. Priority IP traffic is prioritized based on the DSCP (DiffServ Code Points) Class Selector Precedence. Per-Hop Behavior (PHB) This is the Traffic class that determines how packets will be forwarded.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 From left to right: Column Description Index The automatically-assigned specific rule internal index number is identified here. Protocol The protocol for the specific rule is identified here. • Src IP Mask • Dst IP Mask The Source and Destination IP Addresses/Masks are displayed in these columns.
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CDM-840 Remote Router Ethernet-based Remote Product Management • Revision 2 MN-CDM840 Column Description WRED Use the drop-down list to Enable or Disable Weighted Random Early Detection. When WRED is enabled, the QoS Queue will attempt to smoothly drop packets as the queue gets congested. This is recommended for queues that will carry TCP packets. Filter All Use the dr op-down list to Disable or Enable the flow filter setting. If enabled, all packets matching this QoS Rule will be dropped.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.5.2.4 Revision 2 MN-CDM840 Configuration | WAN | Label Use this page to assign up to four Generic Stream Encapsulation (GSE) labels. Figure 6-19. Configuration | WAN | Label Page Receive WAN Labels Edit the Label 1 through Label 4 text boxes to suit. Each label has a valid range of 1 to 2047. The assigned Receive WAN Labels must match the WAN Labels assigned on the CTOG-250 Route Table.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.5.2.5 Revision 2 MN-CDM840 Configuration | WAN | Compression Use this page to configure the Payload and Header Compression feature, if enabled. Figure 6-20. Configuration | WAN | Compression Page Click the (Link to Compression Statistic page) hyperlink to access the Status | Statistics | Compression page (Sect. 6.4.4.6.1.3). Refresh Rates Enter each refresh rate, from 1 to 600 packets or 1 second (whichever comes first).
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 Managed Switch Mode Configuration (BPM Mode) Use the drop-down lists to Enable or Disable Payload and Header Compression for all of the transmitted packets when operating in Bridge Point-to-Multipoint (BPM) Mode. Click [Submit] to save. In Managed Switch Mode, the selected Compression modes apply to all traffic. 6.4.4.5.2.
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CDM-840 Remote Router Ethernet-based Remote Product Management • Revision 2 MN-CDM840 BUC Low or High Current Limit (0 to 4000) – Enter the BUC current alarm for either limit in 100mA increments. Set the desired BUC configurations. Click [Submit BUC Control] to save.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 • LNB Reference Enable – Use the drop-down list to Enable or Disable the LNB Reference. • LNB Current Threshold (Low and High) (0 to 500) – Enter a value, in mA, for either function. Set the desired LNB configurations. Click [Submit LNB Controls] to save. LNB Status This read-only section provides the LNB Current (mA) and LNB Voltage (V) information.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.5.3 Revision 2 MN-CDM840 Configuration | Network Pages Precision Time Protocol is not available in this firmware release. The PTP tab, while available and selectable on this interface, is therefore non-functional. Click the Configuration | Network tabs, and then select the Routing, ARP, Working Mode, or DNS tab to continue. 6.4.4.5.3.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 Add New Route Use this section to directly add a Route Table entry. From left to right: Column Description Index This is the read-only internal table index. It cannot be edited. Description Enter a l abel s tring i n t his t ext box . T his l abel hel ps t o m aintain t he net work. T he assigned name must be unique and cannot contain any whitespace. Dest. IP/Mask Enter a Destination IP Address/Mask in the form XXX.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 6.4.4.5.3.1.2 Configuration | Network | Routing | IGMP IGMP (Internet Group Management Protocol), when enabled, responds to IGMP queries for the configured multicast routes on the transmit side and generates IGMP queries on the receive side. If there are no active IGMP receivers on the LAN, it stops forwarding the multicast traffic (received from the satellite) to the LAN.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 "leave latency" of the network; a reduced value results in reduced time to detect the loss of the last member of a group. Enter a value, in seconds. The default is 1 second. • Query Interval (1 to 60) – This is the interval between general queries sent by the unit.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 6.4.4.5.3.1.3 Configuration | Network | Routing | DHCP DHCP (Dynamic Host Configuration Protocol) allows a device to be configured automatically, eliminating the need for intervention by a network administrator, and provides a server located at the hub for keeping track of devices that have been connected to the network. This prevents two devices from accidentally being configured with the same IP Address. Figure 6-25.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.5.3.2 Revision 2 MN-CDM840 Configuration | Network | ARP Use this page to configure CDM-840 ARP (Address Resolution Protocol) parameters. Figure 6-26. Configuration | Network | ARP Page Add Static ARP Enter the desired IP and MAC addresses. Click [Add Entry] when done. The Index column automatically increments to the next available number when the specified static ARP entry is added to the ARP Table.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 ARP Table (Edit) This section displays all current Static and Dynamic ARP entries, and allows to user to directly edit the current Static ARP entries. From left to right: Column Description Index This is the read-only internal table index. It cannot be edited. IP Entry IP Address, in the form XXX.XXX.XXX.XXX. MAC New data rate based on new MODCOD and current symbol rate.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.5.3.4 Revision 2 MN-CDM840 Configuration | Network | DNS Use this page to manage DNS (Domain Name System) caching. DNS caching speeds up Internet access by eliminating subsequent queries over the satellite link. Figure 6-28. Configuration | Network | DNS Page Note the following: • When the CDM-840 receives a DNS query at one of its Ethernet Ports, a DNS cache look up is performed in the local DNS cache.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.5.4 Revision 2 MN-CDM840 Configuration | ECM (Entry Channel Mode) This page is operational only when the optional dSCPC FAST feature and VIPERSAT MANAGEMENT SYSTEM (VMS) is installed and enabled. • • Appendix F. ENTRY CHANNEL MODE (ECM) in this manual Appendix G. ENTRY CHANNEL MODE SWITCHING in the adjunct CEFD publication VMS v3.x.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 ECM Remote Configuration The acceptable/valid operating ranges for items in this section are provided in parentheses. • Mode – Use the drop-down list to select operation as Disabled, Offline, Wait, or Online: Selection Description Disabled This disables ECM operation. Offline The remote will not transmit and remains in this standby mode until a new state is selected, either locally or from the VMS.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 • Tx LO Frequency – Assign a value, in MHz, to the Tx LO (Low Oscillator) Frequency. • Base Power (–40.0 to 0.0) – Enter the power level, in dBm, for transmission of the Aloha ECM signal. This level was determined for this unit when its terminal was commissioned, and must be calibrated with the satellite provider. Click [Submit] to save.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.5.5 Revision 2 MN-CDM840 Configuration | dSCPC (Dynamic Single Carrier per Channel) This page is operational only when the optional dSCPC FAST feature and VIPERSAT MANAGEMENT SYSTEM (VMS) is installed and enabled. Use the optional dSCPC (Dynamic Single Carrier per Channel) FAST feature to enable dynamic allocation and sharing of bandwidth among users. Figure 6-30.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 • Step Down Threshold (0 to 100) – Enter the percentage of bandwidth use that will trigger a switch down from the present SCPC rate to a lower rate to ensure efficient bandwidth usage for current conditions. Note that this value must be less than the value specified for the SCPC Step Up Threshold. A typical setting for this parameter is 65%.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.6 Revision 2 MN-CDM840 Status Pages The Status pages provide status, event logging, and operational statistics windows. Click the Status tab, and then select the Statistics or Monitor tab to continue. 6.4.4.6.1 Status | Statistics Pages Click the Statistics | Statistics tabs, and then select the Traffic, Router, Compression, QoS, and for the CDM-840 only, the E1 or Trending tab to continue. 6.4.4.6.1.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 Ethernet Statistics From left to right: Column Description Total Pkts Xmitted Total number of packets transmitted. Total Pkts Rcvd Total number of packets received. UC Pkts Xmitted Unicast packets transmitted. UC Pkts Rcvd Unicast packets received. MC Pkts Xmitted Multicast packets transmitted. MC Pkts Rcvd Multicast packets received.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.6.1.2 Revision 2 MN-CDM840 Status | Statistics | Network Pages Precision Time Protocol is not available in this firmware release. The PTP tab, while available and selectable on this interface, is therefore non-functional. Click the Status | Statistics | Network tabs, and then select the Router tab to continue. 6.4.4.6.1.2.1 Status | Statistics | Network | Router Page Use this page to view cumulative traffic information. Figure 6-32.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.6.1.3 Revision 2 MN-CDM840 Status | Statistics | Compression This page is functional only when Tx and Rx Header and Payload Compression are enabled. Use the Configuration | WAN | Compression page (Sect. 6.4.4.5.2.5) to enable or disable Compression operation. Use this page to view read-only cumulative WAN, Payload Compression, and Header Compression statistics. Figure 6-33.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 6.4.4.6.1.4 Status | Statistics | QoS The appearance of this page changes depending on the selected QoS Control Mode. (TOP) Page with QoS Control Mode = OFF, Max/Pri, or Min/Max (BOTTOM) Page with QoS Control Mode = Diffserv (Banner, VFP, Menu Bar not shown) Figure 6-34.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 Click the (Link to QoS Configuration page) hyperlink to access the Configuration | WAN |QoS page (Sect. 6.4.4.5.2.3). Clear QoS Counters The Clear QoS Counters section is typical for all page configurations. Click [Clear] to clear all operational statistics from the buffer. QoS Statistics The appearance of the QoS Statistics section differs depending on the active page configuration.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.6.1.5 Revision 2 MN-CDM840 Status | Statistics | E1 Pages (CDM-840 only) Use these read-only pages to view cumulative CDM-840 E1 traffic information. Click the Status | Statistics| E1 tabs, and then select the Transmit or Receive tab to continue. 6.4.4.6.1.5.1 Status | Statistics | E1 | Transmit Figure 6-35.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 E1 Transmit Packet Statistics From left to right: Column Description E1 Priority Priority as related to E1 configuration (inband signaling/configuration is always conveyed as Priority 1). QoS Index System-assigned Quality of Service Index. Tx Packets Number of packets transmitted. Dropped Packets Number of packets dropped (errors or bandwidth limitations).
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 6.4.4.6.1.5.2 Status | Statistics | E1 | Receive Figure 6-36. Status | Statistics | E1 | Receive Page Clear E1 Receive Statistics Click [Clear] to clear all E1 Receive Statistics from the buffer. E1 Receive Packet Statistics From left to right: Column Description Rx Packets Number of RAN packets received. Discarded Packets Number of discarded Rx packets (errored packets).
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 E1 Receive Statistics From left to right: Row Description Decompression Error Count Number of decompression errors detected.. Receive Status Packet Count Number of status packets received (status packets are received every 500ms). Jitter Buffer Overflow Count Number of times that the jitter buffer has overflowed (indicates too much data; jitter latency is not set high enough if count increases consistently).
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.6.1.6 Revision 2 MN-CDM840 Status | Statistics | Trending (CDM-840 only) Appendix G. WAN/RAN OPTIMIZATION This page provides an updating graphical representation of several CDM-840 IP traffic handling statistics. When the presence of the optional E1 FAST feature is detected and enabled, E1 RAN Optimization trending characteristics are also provided. Figure 6-37.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 To initialize the page: Select the Time Span for the graphs as 20 minutes, 3 Days, or 30 Days, and then click [Update]. Allow a few seconds for the graphs to visually update. Traffic Throughput (kbps) This graph displays utilization of the available data traffic types: Data Traffic Type Description WAN E1 WAN data rate associated with E1/RAN traffic. WAN IP WAN data rate associated with IP traffic.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.6.2 Revision 2 MN-CDM840 Status | Monitor Use this read-only page to view the unit temperature, alarms summary, plus a scrollable window that displays any events and alarms as logged by the unit during normal operation. Figure 6-38. Status | Monitor Page System Monitor This section displays the operating temperature of the unit (°C). Click [Refresh] as needed to update this display.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 click [Clear Event Table] to delete all existing logged entries from the Events log. The log is then reset to one (1) entry: “INFO – Event Log Cleared”. 6.4.4.7 Utility Pages Click the Utility tab, and then select the Utility or Reboot tab to continue. 6.4.4.7.1 Utility | Utility Use this page to access a variety of top-level system operation controls, stored unit configurations, and test utilities. Figure 6-39.
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CDM-840 Remote Router Ethernet-based Remote Product Management Revision 2 MN-CDM840 Modem • Unit Name – The product (e.g., CDM-840) is identified here. • System Contact / System Location – Comtech EF Data Customer Support e-mail and telephone contact information is provided here. Enter the desired information. Click [Submit] to save. • Set Time (hh:mm:ss) – Use HH:MM:SS format (where HH = hour [00 to 23], MM = minutes [00 to 59], and SS = seconds [00 to 59]) to enter a time.
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CDM-840 Remote Router Ethernet-based Remote Product Management • Revision 2 MN-CDM840 To load (recall) a configuration set: o First, use the bottom (Load) Select Location dropdown to select 1 through 10. o Then, click [Load Configuration] to recall the selected configuration settings. BERT Config (Where BERT is the acronym for Bit Error Rate Test) Use the drop-down lists to: • Configure the Tx or Rx BERT State as On or Off. • Configure the Tx or Rx BERT Pattern as 2^23-1 (223-1) or 2047.
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CDM-840 Remote Router Ethernet-based Remote Product Management 6.4.4.7.2 Revision 2 MN-CDM840 Utility | Reboot Use this page to perform a soft reboot of the CDM-840. Note that the function of this page is identical to the System Reboot section of the Admin | Firmware page (Sect. 0). Figure 6-40. Utility | Reboot Page CDM-840 Reboot Click [Reboot] to reboot the unit.
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Chapter 7. SERIAL-BASED REMOTE PRODUCT MANAGEMENT 7.1 Introduction 1. The Serial-based Remote Product Management Interface is intended to provide two important capabilities: • First, it allows you to establish IP communications (Web, SNMP) when the unit is first being configured. • Second, the interface allows you to bring the CDM-840 back online through the serial or Telnet Interface over a very slow speed "backup channel”.
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CDM-840 Remote Router Serial-based Remote Product Management Revision 2 MN-CDM840 2. To proceed with Serial-based Remote Product Management, assumptions are made that: • The CDM-840 is operating with the latest version firmware files. • The CDM-840 is connected to a user-supplied, Windows-based PC, and: o The PC serial port is connected to the CDM-840 rear panel ‘CONSOLE’ port using a user-supplied serial cable.
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CDM-840 Remote Router Serial-based Remote Product Management Revision 2 MN-CDM840 • 38400 bps (Baud Rate) • 8 Data Bits • 1 Stop Bit • Parity = NO • Port Flow Control = NONE • Display New line Rx/Tx: CR • Local Echo = OFF When the user-supplied terminal emulator program is configured correctly, upon power-up of the CDM-840, the CDM-840 Serial Interface Info Screen appears, followed by the CDM-840> command prompt.
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CDM-840 Remote Router Serial-based Remote Product Management 7.2.2 Revision 2 MN-CDM840 Packet Structure The exchange of information is transmitted, Controller-to-Target and Target-to-Controller, in ‘packets’. Each packet contains a finite number of bytes consisting of printable ASCII characters, excluding ASCII code 127 (DELETE). In this context, the Carriage Return and Line Feed characters are considered printable.
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CDM-840 Remote Router Serial-based Remote Product Management Revision 2 MN-CDM840 The ‘<’ and ‘>’ characters indicate the start of packet. They may not appear anywhere else within the body of the message. 7.2.2.2 Target Address Up to 9,999 devices can be uniquely addressed. In both EIA-232 applications, the permissible range of values is 1 to 9999. The target addess is programmed into a target unit using the remote control port.
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CDM-840 Remote Router Serial-based Remote Product Management 7.2.2.5 Revision 2 MN-CDM840 Instruction Code Qualifier This is a single character that further qualifies the preceding instruction code. Code Qualifiers obey the following rules: Controller-to-Target, the only permitted characters are: Character Definition = (ASCII code 61) This character is used as the Assignment Operator (AO).
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CDM-840 Remote Router Serial-based Remote Product Management 7.2.2.6 Revision 2 MN-CDM840 Character Definition * (ASCII code 42) If the Controller sends the command to set a parameter to a particular value, and the value sent is valid BUT the router will not permit that particular parameter to be changed at present, the Target acknowledges the message and responds with, for example, MLC* (with message arguments).
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CDM-840 Remote Router Serial-based Remote Product Management 7.3 7.3.1 Revision 2 MN-CDM840 Remote Commands and Queries Table Indexes Notes: 1. Index Columns – Where Column ‘C’ = Command, and Column ‘Q’ = Query, columns marked ‘X’ designate the instruction code as Command only, Query only, or Command or Query. 2. In the tables that follow, the following codes are used in the ‘Response to Command’ column (per Sect. D.5.5): = Message ok # Message ok, but unit is not in Remote mode.
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CDM-840 Remote Router Serial-based Remote Product Management Revision 2 MN-CDM840 Sect. 6.3.5 Transmit (Tx) BERT Command or Query CODE BTX C Q X X PAGE 6-16 Sect. 6.3.6 Receive (Rx) BERT Command or Query CODE BRX C Q X X PAGE 6-16 Sect. 6.3.7 BUC (Block Upconverter) Parameters Commands and Queries CODE BCH BCL BDC C Q X X X X X PAGE 6-17 6-17 6-17 CODE BDV BFR BPS C X X Q X X X PAGE 6-17 6-17 6-17 CODE C Q PAGE Sect. 6.3.
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CDM-840 Remote Router Serial-based Remote Product Management Revision 2 MN-CDM840 Sect. 6.3.11 Redundancy Commands and Queries CODE FSW RED C Q X X PAGE 6-27 6-27 Sect. 6.3.
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CDM-840 Remote Router Serial-based Remote Product Management 7.3.2 Parameter Type Tx Frequency Tx Data Rate Revision 2 MN-CDM840 Transmit (Tx) Parameters Commands and Queries Command (Instruction Code & Qualifier) TFQ N/A Number of Arguments for Command or Response to Query 9 bytes 10 bytes Description of Arguments (Note that all arguments are ASCII numeric codes from 48 and 57) Command or Query. Sets or returns Tx Frequency in the form xxxx.xxxx , where: Range = 950.0000 to 2150.
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CDM-840 Remote Router Serial-based Remote Product Management Parameter Type Tx MODCOD Command (Instruction Code & Qualifier) TMC= Number of Arguments for Command or Response to Query 2 bytes Revision 2 MN-CDM840 Response to Command (Target to Controller) TMC= TMC? TMC* TMC# Query (Instruction Code & Qualifier) TMC? TSI= TSI? TSI* TSI# TSI? TSI=x (see Description of Arguments) Example: <1/TSI =0’cr’ Command or Query.
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CDM-840 Remote Router Serial-based Remote Product Management 7.3.3 Parameter Type Rx Frequency Rx Symbol Rate Rx MODCOD Revision 2 MN-CDM840 Receive (Rx) Parameters Commands and Queries Command (Instruction Code & Qualifier) RFQ= RSR= N/A Number of Arguments for Command or Response to Query 10bytes 10 bytes 2 bytes Description of Arguments (Note that all arguments are ASCII numeric codes from 48 and 57) Command or Query.
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CDM-840 Remote Router Serial-based Remote Product Management Parameter Type Command (Instruction Code & Qualifier) Number of Arguments for Command or Response to Query Rx MODCOD (cont.
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CDM-840 Remote Router Serial-based Remote Product Management 7.3.4 Parameter Type Rx Signal Level Revision 2 MN-CDM840 Demodulator Status Commands and Queries Command (Instruction Code & Qualifier) N/A Number of Arguments for Command or Response to Query 5 bytes Description of Arguments (Note that all arguments are ASCII numeric codes from 48 and 57) Query only. Returns the value of the Rx signal level, in dBm, from -25 to -55 dBm with a tolerance of ±5 dBm. Resolution = 0.5dB.
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CDM-840 Remote Router Serial-based Remote Product Management 7.3.5 Parameter Type Tx BERT State Revision 2 MN-CDM840 Transmit (Tx) BERT Command or Query Command (Instruction Code & Qualifier) BTX= Number of Arguments for Command or Response to Query 1 byte Description of Arguments (Note that all arguments are ASCII numeric codes from 48 and 57) Command or Query.
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CDM-840 Remote Router Serial-based Remote Product Management 7.3.7 Parameter Type BUC Power Supply enable BUC 10 MHz Reference Revision 2 MN-CDM840 BUC (Block Upconverter) Parameters Commands and Queries Command (Instruction Code & Qualifier) BPS= Number of Arguments for Command or Response to Query 1 byte BFR= 1 byte Command or Query.
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CDM-840 Remote Router Serial-based Remote Product Management 7.3.
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CDM-840 Remote Router Serial-based Remote Product Management 7.3.9 Unit Parameters Commands and Queries Command Number of (Instruction Arguments for Code Command or & Qualifier) Response to Query Equipment ID N/A 37 bytes Parameter Type Revision 2 MN-CDM840 Description of Arguments (Note that all arguments are ASCII numeric codes from 48 and 57) Query only. Returns the equipment ID and installed options, where: AAAA= The modem model number, i.
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CDM-840 Remote Router Serial-based Remote Product Management Parameter Type Equipment ID (cont.
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CDM-840 Remote Router Serial-based Remote Product Management Parameter Type Command (Instruction Code & Qualifier) Number of Arguments for Command or Response to Query Description of Arguments (Note that all arguments are ASCII numeric codes from 48 and 57) Response to Command (Target to Controller) Query (Instruction Code & Qualifier) Response to Query (Target to Controller) I = Quality of Service 0= None 1= Basic Qos (Diffserv + SAR) 2= Advanced Qos (Basic Qos + Rule Based Qos) J = G.
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CDM-840 Remote Router Serial-based Remote Product Management Parameter Type Faults and Status Software Boot From Slot Command Number of (Instruction Arguments for Code Command or & Qualifier) Response to Query N/A 16 bytes SBS= 1 byte Revision 2 MN-CDM840 Description of Arguments (Note that all arguments are ASCII numeric codes from 48 and 57) Query only.
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CDM-840 Remote Router Serial-based Remote Product Management Parameter Type SNMP Unit Name Command Number of (Instruction Arguments for Code Command or & Qualifier) Response to Query SSN= 16 bytes Revision 2 MN-CDM840 Response to Command (Target to Controller) SSN = SSN! Query (Instruction Code & Qualifier) SSN? Note: If not configured it returns empty string Query only. Returns the 9-digit serial number. N/A SNO? Example: <1/SNO?’cr’ Command or Query.
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CDM-840 Remote Router Serial-based Remote Product Management Parameter Type GE Link Configuration Command Number of (Instruction Arguments for Code Command or & Qualifier) Response to Query LC1= 1 byte Actual Negotiated Port Speed N/A None Management IP Address IPA= 18 bytes Management Link Configuration MLC= 1 byte Revision 2 MN-CDM840 Description of Arguments (Note that all arguments are ASCII numeric codes from 48 and 57) Command or Query.
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CDM-840 Remote Router Serial-based Remote Product Management Command (Instruction Code & Qualifier) Number of Arguments for Command or Response to Query Default Passwords DPW= N/A Geographical Log Information GLG= 18 bytes Management MAC Address N/A 12 bytes, alphanumerical GE MAC Address N/A 12 bytes, alphanumerical Parameter Type Revision 2 MN-CDM840 Description of Arguments (Note that all arguments are ASCII numeric codes from 48 and 57) Command Only.
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CDM-840 Remote Router Serial-based Remote Product Management Parameter Type Reported Es/No Command (Instruction Code & Qualifier) Number of Arguments for Command or Response to Query N/A 5 bytes Revision 2 MN-CDM840 Description of Arguments (Note that all arguments are ASCII numeric codes from 48 and 57) Query Only. Returns current Es/No of demodulator where: s = ‘0’ or ‘-‘ (negative sign, if needed, zero otherwise) xx.x = value from 00.0 to 35.0 dB. Resolution = 0.1 dB.
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CDM-840 Remote Router Serial-based Remote Product Management 7.3.10 Parameter Type Configuration Load Configuration Save Revision 2 MN-CDM840 Bulk Configuration String Commands Command Number of (Instruction Arguments for Code Command or & Qualifier) Response to Query CLD= 1 byte CST= 1 byte Description of Arguments (Note that all arguments are ASCII numeric codes from 48 and 57) Command only.
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CDM-840 Remote Router Serial-based Remote Product Management 7.3.12 Parameter Type Revision 2 MN-CDM840 Miscellaneous Utility Commands and Queries Command Number of (Instruction Arguments for Code Command or & Qualifier) Response to Query PING None Description of Arguments (Note that all arguments are ASCII numeric codes from 48 and 57) Command only. Sending four 64-byte ICMP echo request packets to the host and waiting for the ICMP response. The host IP address is in the format: xxx.xxx.xxx.
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Appendix A. REFERENCE DOCUMENTATION This appendix describes features that may be monitored or controlled by the user, or otherwise processed by the CDM-840 Remote Router. For detailed reading about the operational features of the Advanced VSAT Series group of products, consult the adjunct documentation that is specified in this appendix and is available for download from Comtech EF Data’s web site (www.comtechefdata.com). Figure A-1.
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CDM-840 Remote Router Appendix A A.1 Revision 2 MN-CDM840 FEC (FORWARD ERROR CORRECTION) OPTIONS The method of FEC used among Comtech EF Data’s Advanced VSAT series of products differs according to Advanced VSAT Series product.
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CDM-840 Remote Router Appendix A A.2 Revision 2 MN-CDM840 Adaptive Coding and Modulation / Variable Coding and Modulation (ACM/VCM) The VersaFEC® Adaptive Coding and Modulation (ACM) feature is a patents-pending technology owned and developed by Comtech EF Data and CEFD sister division Comtech AHA Corp. ACM turns fade margin into increased link capacity by automatically adapting the modulation type and FEC code rate to give highest possible throughput.
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CDM-840 Remote Router Appendix A A.3 Revision 2 MN-CDM840 Bridge Point-to-Multipoint (BPM) Operation The Advanced VSAT BPM feature functions as a Learning Ethernet Switch when the “Working Mode” is set to BPM. This makes the Advanced VSAT equipment appear as a “Sky Ethernet Switch” and allows for a greatly simplified network deployment. In BPM Mode, all L2/L3/L4 protocols such as VLAN, MPLS, IPv6, OSPF, and BGP will flow through the network as they would through an off-the-shelf Ethernet Switch.
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CDM-840 Remote Router Appendix A A.5 Revision 2 MN-CDM840 Entry Channel Mode (ECM) ECM operation is available in the CDM-840 and ODM/R-840 Remote Routers, and the CDD-880 Multi Receiver Router. ECM is a feature based on slotted Aloha with random retransmission backoff. It supports multiple carriers through frequency assignments, which provide simplified deployment and scalability.
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CDM-840 Remote Router Appendix A Revision 2 MN-CDM840 Notes: A–6
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Appendix B. FEC (FORWARD ERROR CORRECTION) OPTIONS B.1 FEC Overview The method of FEC (Forward Error Correction) used by the CDM-840 Remote Router depends on the direction of signal processing in use: B.2 • The receive (Rx) side of the CDM-840 operates with error correction based on the DVBS2 standard for QPSK, 8PSK, 16APSK and 32APSK with concatenated Low Density Parity Code (LDPC) and Bose-Chaudhuri-Hocquenghem (BCH).
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CDM-840 Remote Router Appendix B Revision 2 MN-CDM840 LDPC also uses interleaving to spread the errors. In contrast, Viterbi error correction operates by passing data through the convolutional error correction process using a single error correction pass. The error correcting capability of LDPC is enhanced by use of large block sizes. Although large block sizes can increase latency in low bitrate applications (typically less than 2Mbps), this is not a drawback in one-way broadcast applications.
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CDM-840 Remote Router Appendix B B.3 Revision 2 MN-CDM840 VersaFEC (Short-block LDPC) While LDPC coding represents a significant development in the area of FEC and its performance is exceptional in terms of coding gain, its higher latency is considered disadvantageous in some applications. Comtech EF Data’s development of LDPC incorporated research into ways to reduce the block size of LDPC (and hence its latency) while preserving the coding gain performance very close to the Shannon bound.
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CDM-840 Remote Router Appendix B Revision 2 MN-CDM840 Table B-1 specifies the 12 modulations types / code rates that comprise the VersaFEC MODCOD Set. These chosen modulation types (BPSK, QPSK, 8-QAM and 16-QAM) and code rates afford a continuous progression of performance in terms of both Eb/No and spectral efficiency – essential aspects of a well-engineered ACM system. Table B-1. The VersaFEC MODCOD Set Spectral Latency at Block size, Typical Eb/No, for Min. Data Rate, Max.
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CDM-840 Remote Router Appendix B Revision 2 MN-CDM840 Figure B-2.
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CDM-840 Remote Router Appendix B Revision 2 MN-CDM840 Figure B-3.
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CDM-840 Remote Router Appendix B Revision 2 MN-CDM840 Figure B-4.
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CDM-840 Remote Router Appendix B Revision 2 MN-CDM840 Figure B-5.
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CDM-840 Remote Router Appendix B Revision 2 MN-CDM840 Eb/No in dB 1 2 3 4 5 6 7 8 9 10 11 12 1E-1 Comtech VersaFEC® Codec Rate 0.488 BPSK Uncoded BPSK/QPSK 1E-2 1E-3 Rate 0.488 BPSK 1E-4 Typical performance shown guaranteed performance curve is 0.3 dB to the right 1E-5 1E-6 1E-7 1E-8 1E-9 1 2 3 4 5 6 7 8 9 BER Figure B-6. VersaFEC Codec – BPSK, Rate 0.
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CDM-840 Remote Router Appendix B Revision 2 MN-CDM840 Eb/No in dB 1 2 3 4 5 6 7 8 9 10 11 12 1E-1 Comtech VersaFEC® Codec Rate 0.533, 0.631, 0.706, and 0.803 QPSK Uncoded BPSK/QPSK 1E-2 1E-3 Rate Rate 0.533 0.631 QPSK QPSK Rate 0.706 QPSK Rate 0.803 QPSK 1E-4 Typical performance shown guaranteed performance curves are 0.3 dB to the right 1E-5 1E-6 1E-7 1E-8 1E-9 1 2 3 4 5 6 7 8 9 10 BER Figure B-7. VersaFEC Codec – QPSK, Rate 0.533, 0.631, 0.706 and 0.
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CDM-840 Remote Router Appendix B Revision 2 MN-CDM840 Eb/No in dB 1 2 3 4 5 6 7 8 9 10 11 12 1E-1 Comtech VersaFEC® Codec Rate 0.642, 0.711, 0.780 8-QAM Uncoded BPSK/QPSK 1E-2 Rate 0.642 8-QAM Rate 0.711 8-QAM Rate 0.780 8-QAM 1E-3 Uncoded 8-PSK 1E-4 1E-5 1E-6 1E-7 Typical performance show guaranteed performance curves are 0.3 dB to the right 1E-8 1E-9 1 2 3 4 5 6 7 8 9 10 BER Figure B-8. VersaFEC Codec – 8-QAM, Rate 0.642, 0.711, and 0.
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CDM-840 Remote Router Appendix B Revision 2 MN-CDM840 Eb/No in dB 1 2 3 4 5 6 7 8 9 10 11 12 1E-1 1E-2 Comtech VersaFEC® Codec Rate 0.731, 0.780, 0.829 and 0.853 16-QAM Uncoded BPSK/QPSK Uncoded 16-QAM 1E-3 Rate Rate 0.780 0.731 16-QAM 16-QAM Rate 0.829 16-QAM Rate 0.853 16-QAM 1E-4 1E-5 1E-6 1E-7 Typical Performance shown guaranteed performance curves are 0.3dB to the right 1E-8 1E-9 1 2 3 4 5 6 7 8 9 10 11 BER Figure B-9. VersaFEC Codec – 16-QAM, Rate 0.731, 0.
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Appendix C. BRIDGE POINT-TOMULTIPOINT (BPM) OPERATION C.1 Introduction The overall intent of the Advanced VSAT Bridge Point-to-Multipoint (BPM) feature is to make the Advanced VSAT equipment appear as a “Sky Ethernet Switch”. This allows for a greatly simplified network deployment. In BPM Mode, all L2/L3/L4 protocols, such as VLAN, MPLS, IPv6, OSPF, and BGP, flow through the network as they would through an off-the-shelf Ethernet Switch. Figure C-1.
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CDM-840 Remote Router Appendix C C.2 Revision 2 MN-CDM840 Supported Network Configurations When running in BPM Mode, the Advanced VSAT System supports Flat Networks, Flat Networks with Routers, and VLAN Trunking network topologies. C .2.1 F lat Network In a Flat Network (Figure C-2), all devices are on the same IP subnet. This is a very easy-to-use topology for simple and/or small networks. Figure C-2. Flat Network C .2.
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CDM-840 Remote Router Appendix C Revision 2 MN-CDM840 C .2.3 V L AN T runking In a VLAN Trunking topology (Figure C-4), the Hub side equipment functions as a VLAN trunking interface. You can map Outbound packets (Hub to Remote) to the desired QoS Group (see Sect. C.6). By default, the CDM-840 equipment functions as a VLAN trunk and passes all traffic received on the WAN and Traffic LAN ports.
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CDM-840 Remote Router Appendix C Revision 2 MN-CDM840 For Advanced VSAT BPM Mode, it is important to note that the CTOG-250 Comtech Traffic Optimization Gateway and CDM-840s learn MAC addresses and avoid any unnecessary transmission. In BPM Mode, the CDD-880 Multi Receiver Router functions as a receive-only pass-through to the CTOG-250. C .3.
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CDM-840 Remote Router Appendix C Revision 2 MN-CDM840 When operating the network with the Comtech NetVue or Vipersat Management System (VMS), the Advanced VSAT units (CTOG-250/CDM-800, CDM-840, and CDD-880) are managed through the Management Network using the Management Ethernet port and Management IP Addresses. C.4 IEEE 802.1Q Support Advanced VSAT support for IEEE 802.1Q includes VLAN Trunking, Access Mode and Multiple VLAN Tagging support. C .4.
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CDM-840 Remote Router Appendix C Revision 2 MN-CDM840 C .4.3 Multiple V L AN T agging S upport The Advanced VSAT platform supports processing Ethernet packets with multiple stacked VLAN tags, with the following limitations: C.5 • At the CTOG-250, only the outermost VLAN ID is used for mapping to the appropriate QoS Groups. • In Trunking Mode, L2 Header Compression only compresses packets with one or two VLAN Headers.
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CDM-840 Remote Router Appendix C Revision 2 MN-CDM840 If required, you can create QoS rules with “Filter All” enabled to filter undesired Multicast from traversing the satellite network for both the CTOG-250 and the CDM-840. C .5.
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CDM-840 Remote Router Appendix C Revision 2 MN-CDM840 ID, and then use a Subnet/Mask, to associate a packet to a QoS Group. This functionality allows you to partition the Outbound Carrier capacity. In BPM Mode, you must define a simple VLAN mapping algorithm to map traffic for a given remote to a single QoS Group and a single VLAN ID.
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CDM-840 Remote Router Appendix C Revision 2 MN-CDM840 For the standalone CTOG-250 approach, there are no restrictions on the Hub network beyond requiring that you connect the traffic ports for all of the CDD-880s and the CTOG-250 to the same Ethernet Switch. Figure C-8. Hub Configuration – Standalone CTOG-250, No Redundancy While the Figure C-8 diagram suggests inclusion of the management network portion, it is not strictly required.
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CDM-840 Remote Router Appendix C Revision 2 MN-CDM840 If you have multiple Advanced VSAT outbound carriers at a single Hub, Comtech EF Data recommends the deployment architecture shown in Figure C-9. Figure C-9. Hub Network Configuration If you have multiple Advanced VSAT outbound carriers at a single Hub, Comtech EF Data recommends the deployment architecture shown in Figure C-10.
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CDM-840 Remote Router Appendix C Revision 2 MN-CDM840 allows the packets coming from the CDD-880s to be associated with the correct CTOG-250, as long as you enable MAC learning on the attached Ethernet Switch. Figure C-10.
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CDM-840 Remote Router Appendix C C.8 Revision 2 MN-CDM840 Compatible Features and Detailed Specifications Advanced VSAT BPM Mode is compatible with the following features: Feature Comments Group QoS (CTOG-250) and QoS (CDM-840) Header Compression Includes the following L2 Protocols: • Ethernet 2.0 • Ethernet 2.0 + VLAN-tag • Ethernet 2. 0 + V LAN-tag + VLAN-tag • Ethernet 2.0 + MPLS • 802.3-raw • 802.3-raw + VLAN-tag • 802.3-raw + VLAN-tag + VLANtag • 802.3 +802.2 • 802.3 +802.
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CDM-840 Remote Router Appendix C Revision 2 MN-CDM840 The following features are not supported when in BPM Mode: • The standalone CDM-800* does not support BPM due to packet per second limitations. • Single Hop on Demand (SHOD) Mesh. • CDD-880 Port Diversity. *Starting with Firmware Ver. 1.5.1.X, the CDM-800 no longer supports standalone mode. The CDM-800 must be paired with a CTOG-250.
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CDM-840 Remote Router Appendix C Revision 2 MN-CDM840 C.10 Glossary Term ACM/VCM Bridge Mode BPM Mode Comtech Dynamic Routing Protocol (CDRP) CTOG-250 Entry Channel Mode (ECM) Flat Network IGMP Router Mode Single Hop on Demand (SHOD) VLAN Access Mode VLAN Trunking Mode Definition Adaptive Coding and Modulation / Variable Coding and Modulation This Advanced VSAT Network Working Mode configures the Traffic ports of the CTOG-250 and CDM-840 to function as a Bridge.
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Appendix D. HEADER AND PAYLOAD COMPRESSION D.1 Introduction Chapter 6. ETHERNET-BASED REMOTE PRODUCT MANAGEMENT Header and Payload Compression are standard features provided in Comtech EF Data’s Advanced VSAT Series group of products, including the CDM-840 Remote Router. The CDM-840 implements Payload Compression via the presence of a GZIP ASIC on the CDM840 main board. This integrated circuit provides the transmit compression and receive decompression capabilities for maximum throughput and efficiency.
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CDM-840 Remote Router Appendix D Revision 2 MN-CDM840 widely available as an open-source software tool; it does not require the use of a software license. Deflate-compressed blocks are wrapped with a header and footer to become GZIP files. Typically, when a classical, single, general purpose CPU performs GZIP compression, either the compression performance is scaled back to maximize data throughput speeds, or the CPU runs slow.
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CDM-840 Remote Router Appendix D Revision 2 MN-CDM840 Table D-2. Comtech AHA GZip Performance Specifications Support D.2 Description Specification Number of TX compression sessions supported 64,000 Session history size supported 2048 Granularity of control Per route basis Refresh rate 1 to 600 packets or 1 second whichever comes first Compatibility Packets compressed by the CDM-840 transmitter will be decompressed without error by the CDM-840 receiver.
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CDM-840 Remote Router Appendix D Revision 2 MN-CDM840 Use the Configuration | Routing | Routes page (Figure D-1) to enable or disable Header and Payload Compression operation when operating in Router Mode. When operating in Bridge Point-to-Multipoint (BPM) Mode, use the Bridged Point-to-Multipoint Configuration on the Compression Configuration Page. This will enable and disable the Header and Payload compression for the entire Transmit path.
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CDM-840 Remote Router Appendix D Revision 2 MN-CDM840 The supported refresh rates are based on the runtime characterization that there will be, at most, 600 packets seen between refreshes. Additionally, even though the runtime supports 64,000 Tx compression sessions, it is only necessary to have context storage for a small number over those 600 packets. Based on this specification, the CDM-840’s compression performance is defined in Table D-3 (±5% with different compression refresh rates). Table D-3.
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CDM-840 Remote Router Appendix D Revision 2 MN-CDM840 D.2.3 V iewing Header and P ayload C ompres s ion S tatis tic s Figure D-4. Status | Statistics | Compression page Use the Status | Statistics | Compression page (Figure D-4) to review Header and Payload Compression statistics – the total bytes of the pre-compressed and post-compressed traffic and effective compression ratio. The CDM-840 supports header compression for Ethernet, and Layer 3, 4, and 5 headers.
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Appendix E. DATA COLLECTION E.1 Introduction In the event that an operational issue (such as degraded performance or loss of IP access) is encountered with an onsite (field-installed) CDM-840 Remote Router, it is crucial for Comtech EF Data Product Support to receive diagnostic information collected from the onsite unit in question in order to properly investigate and resolve the issue.
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CDM-840 Remote Router Appendix E Revision 2 MN-CDM840 2. Once you gather this initial pre-reboot information, you must reboot the CDM-840 to reinitialize and restore service. 3. In addition to collecting the pre-reboot Serial Interface text capture file, after the CDM-840 reboots you must retrieve its onboard data collection files via Ethernet connection, and transfer these files to the User PC: • The “cdm840slot0.
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CDM-840 Remote Router Appendix E Revision 2 MN-CDM840 E. Using W indows C ommand-line ( Start > Run... > cmd.exe), c reate a f older ( directory) named “ temp” ( or some o ther e asy-to-remember na me) o n the U ser P C f or p lacement o f t he text c apture file, CDM-840 configuration file, and the data collection files: Example: C:\>md temp F. Set the terminal emulator program to capture the Serial Interface session to a text file.
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CDM-840 Remote Router Appendix E Revision 2 MN-CDM840 Follow these steps to collect pre-reboot information from a CDM-840 using Firmware Version 1.3.
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CDM-840 Remote Router Appendix E To do this: Revision 2 MN-CDM840 Type this at the Serial Interface “->” prompt: End the Serial Interface text capture session – be sure to verify that you save Refer to your terminal emulator program User Guide or Help the file to your “temp” folder successfully feature. before rebooting. You may now reboot the CDM-840 and proceed to E.4 Collection of Post-Reboot Diagnostic Information from the CDM-840. E.
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CDM-840 Remote Router Appendix E Revision 2 MN-CDM840 To do this: Type this at the Windows Command-line prompt: Select binary transfer mode ftp>bin Change to “tffs” folder ftp>cd /tffs Retrieve the CDM-840 configuration file ftp>get cdm840slot0.xml Collect log files (they may or may not exist) ftp>get log0 ftp>get log1 ftp>get log2 Terminate the FTP session ftp>quit C. Forward the data collection files to Comtech EF Data Product Support: i.
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CDM-840 Remote Router Appendix E E.5 Revision 2 MN-CDM840 Serial Adapter Cable Fabrication Specifications Reference CAUTION: To ensure proper operation, fabrication of this Serial Adapter Cable requires that : • You must wire the connectors using the pinout tables and diagram provided here. • Type 'D' connectors must have back-shells with continuous metallic shielding. • Type ‘D’ cabling must have a continuous outer shield (either foil or braid, or both).
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CDM-840 Remote Router Appendix E Revision 2 MN-CDM840 Notes: E–8
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Appendix F. ENTRY CHANNEL MODE (ECM) F.1 Functional Overview Comtech EF Data CDD-880 Multi Receiver Router Installation and Operation Manual (CEFD P/N MN-CDD880) Figure F-1. ECM – Message Processing Diagram Figure F-1 illustrates the processing diagram for Entry Channel Mode (ECM) messaging. ECM is a feature based on slotted Aloha with random retransmission backoff. ECM supports multiple carriers through frequency assignments, which provide simplified deployment and scalability.
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CDM-840 Remote Router Appendix F Revision 2 MN-CDM840 While a CDM-840 is in Entry Channel Mode, it allows the passing of management traffic only – it will not transmit user data traffic. An ECM-enabled CDM-840 may remain in the entry channel for an extended period if “online” communications are not required, or if dSCPC (Dynamic Single Carrier Per Channel) resources are unavailable.
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CDM-840 Remote Router Appendix F Revision 2 MN-CDM840 Upon valid reception, the HCC processes the Remote Identification (RID) packet containing the CDM-840 IP Address, TAP (Group) ID, and ECM state flags. Each CDM-840 sign-on IP Address is added to a list of CDM-840(s) that are queued and await assignment. Depending on the ECM state flag, the CDM-840 either remains idle in the channel or is assigned one of the next available time-sensitive slots.
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CDM-840 Remote Router Appendix F F.2 Revision 2 MN-CDM840 Entry Channel Mode Operation See Sections F.1 Functional Overview and F.4 Glossary of Terms for descriptions of the terminologies referred to in this section. F.2.1 ECM Configuration using the Web Server Interfaces Figure F-2.
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CDM-840 Remote Router Appendix F F.2.2 Revision 2 MN-CDM840 CDM-840 Remote Router Terminals Chapter 6. ETHERNET-BASED REMOTE PRODUCT MANAGEMENT For the CDM-840: Select the ECM mode as Online, Wait or Offline. Each ECM state establishes a different role for the CDM-840 in the overall Advanced VSAT Network operations: • Online – This is the most common ECM state, whereby the CDM-840 powers up, requests network registration, and switches to dSCPC at the minimum site policy data rate setting.
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CDM-840 Remote Router Appendix F Processing Segment Revision 2 MN-CDM840 Description Remarks Action 1 ALOHA “Not Registered” or “Reverted” 2 Remarks A Random attempts with backoff until in TAP REGISTRATION B In TAP 3 SWITCH PENDING C Send Registration Protocol until complete 4 SWITCHED D Not in TAP E F G Registration complete – no more Slots needed Received “Switch Command” message from VMS Received “Revert” message from VMS Figure F-3.
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CDM-840 Remote Router Appendix F F.2.3 Revision 2 MN-CDM840 CDD-880 Hub Channel Controller (HCC) Chapter 6. ETHERNET-BASED REMOTE PRODUCT MANAGEMENT F.2.3.
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CDM-840 Remote Router Appendix F Revision 2 MN-CDM840 CDM-840 IP Address along with its ECM state flag (i.e., Online, Wait, or Offline) into the first queued list. The controller checks the flag to determine next operation. If the ECM state is Online, an SRS is assigned for next TAP processing. • The CDM-840 receives the TAP with its IP Address in the SRS list and, based on where its place is in the sequential order, determines the slot assignment.
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CDM-840 Remote Router Appendix F F.3 Revision 2 MN-CDM840 ECM Operational Scenarios F.3.1 Scenario 1 – VMS Initial Registration Process For proper registration with the VMS, initialization (power-up and bootup) of the ECM-enabled CDM-840 is required. Upon initialization, the CDM-840: 1. Receives a VMS Announcement, sets up an active VMS IP Address, and initializes ECM TAP processing; 2. Transmits a registration request using a selected SAS, and sets a “Needs Slot” flag in the RID message; 3.
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CDM-840 Remote Router Appendix F Revision 2 MN-CDM840 and transmits. If the probe is not detected at the corresponding CDD-880 (as indicated by the next TAP to the CDM-840), it backs off by doubling the cycle and selecting another random slot. If the revert happened near the end of the cycle the CDM-840 wait for next TAP. The Slots in Frame setting is determined by the number of remotes in the cluster that are either waiting in the channel or put back into the channel for recovery.
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CDM-840 Remote Router Appendix F Revision 2 MN-CDM840 An integral number of VersaFEC blocks are used for both the preamble and the data segment; the guard band will vary due to system timing uncertainties and propagation delay due to the geographic dispersion of the CDM-840s. A Guard Band of 50ms is sufficient in most cases to accommodate geographical latency differences and internal timing errors.
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CDM-840 Remote Router Appendix F F.
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Appendix G. WAN/RAN OPTIMIZATION G.1 Overview The CDM-840 Remote Router supports E1 RAN (Radio Access Network) Optimization as a FAST option. This appendix provides detailed information about Comtech EF Data’s patent pending RAN Optimization technology, which is designed to provide maximum savings while maintaining superior voice quality. G.1.1 Radio Access Network (RAN) Figure G-1 illustrates typical 2G and 3G Radio Access Networks. Figure G-1.
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CDM-840 Remote Router Appendix G Revision 2 MN-CDM840 In the cellular network, the RAN connects cell-site nodes with central-site nodes: • For Global System for Mobile Communications (GSM) / 2G, the Base Transceiver Stations (BTS) connect to the Base Station Controllers (BSC) via the Abis interface. Voice, data and signaling are transported over one or more E1s.
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CDM-840 Remote Router Appendix G G.2 Revision 2 MN-CDM840 E1 RAN Optimization Jointly developed by Comtech EF Data, CEFD sister division Comtech AHA Corp., and CEFD subsidiary Memotec Inc., RAN Optimization technology significantly reduces the Wide Area Network (WAN) / satellite bandwidth required to carry an E1 bearer used for cellular backhaul.
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CDM-840 Remote Router Appendix G Revision 2 MN-CDM840 G.2.1 Process Overview Figure G-3.
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CDM-840 Remote Router Appendix G Revision 2 MN-CDM840 G.2.2 WAN Link Dimensioning and Pre-emptive Bandwidth Management RAN traffic varies over time – variations during the day that peak at certain time(s), and longer term variation as user density/profile(s) changes. The WAN link can be dimensioned to accommodate the peak traffic, or it can be dimensioned to meet a statistically derived value (e.g. average traffic). Dimensioning the WAN link for peak traffic may not be economically viable.
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CDM-840 Remote Router Appendix G Revision 2 MN-CDM840 As implemented by Comtech EF Data, the superior method of handling WAN congestion is to perform pre-emptive and selective voice packet discard. Comtech EF Data’s RAN Optimization solution employs a sophisticated bandwidth management capability to maintain Service Quality. The signaling and O&M traffic is always protected from being dropped in case of WAN congestion – this ensures that the BTS/NodeB stays connected and synchronized.
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CDM-840 Remote Router Appendix G Revision 2 MN-CDM840 G.2.3 Performance Monitoring The RAN Optimizer collects detailed usage and performance statistics that are accessible using the CDM-840 Web Server (HTTP) Interface Status | Statistics | Trending page (Figure G-6). Viewable by selectable time spans, these graphs display information needed to monitor the link performance and to take appropriate action as needed. See Chapter 6.
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CDM-840 Remote Router Appendix G Revision 2 MN-CDM840 G.2.3.1 Traffic Throughput (kbps) This graph illustrates the utilization of all available data traffic types over a 20-minute, 3-day, or 30-day time span (this example shows the graph with the 20-minute time span selected). Note the following: G.2.3.
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CDM-840 Remote Router Appendix G Revision 2 MN-CDM840 Association of the Link Quality Metric to its comparative Link Quality is as follows: Link Quality Metric 8 7 6 5 4 3 2 1 Link Quality Excellent Very Good Good Fair Average Poor Very Poor Note that ‘8’ on the graph indicates the highest quality, with no voice traffic discard. G.2.3.
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CDM-840 Remote Router Appendix G Revision 2 MN-CDM840 Notes: G–10
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