Cisco MGX 8220 Reference Release 4.1 May 1998 Corporate Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.
IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Notice to Users of T1 Services 1. The device must only be connected to the T1 network connected behind an FCC Part 68 registered channel service unit. Direct connection is not allowed. 2. Before connecting your unit, you must inform the telephone company of the following information: SOC:6.0N FIC: 04DU9-ISN 3. If the unit appears to be malfunctioning, it should be disconnected from the telephone lines until you learn if your equipment or the telephone line is the source of the trouble.
T1 SYSTEMS AFFIDAVIT REQUIREMENT FOR CONNECTION TO DIGITAL SERVICES An affidavi is required to served to the telephone company whenever digital terminal equipment without encoded analog content and billing protection is used to transmit digital signals containing encoded analog content which are intended for eventual conversation int voiceband analog signals and retransmitted over the network.
() b. A training course provided by the customer of authorized representative, using training materials and instructions provided by the manufacture/grantee of the used to encode analog signal(s); or () c. An independent training course (e.g. trade school or technical institution) recognized by the manufacturer/grantee of the equipment used to encode analog signal(s); or () d.
EQUIPMENT ATTACHMENT LIMITATIONS “NOTICE: The Industry Canada label identifies certified equipment. This certification means that the equipment meets telecommunications network protective, operational and safety requirement as prescribed in the appropriate Terminal Equipment Technical Requirements document(s). The Department does not guarantee the equipment will operate to the user’s satisfaction.
TABLE About This Manual Objectives Audience xix xix Organization Conventions xx xx Related Documentation xxi xxi Introducing the MGX 8220 Shelf 1-1 MGX 8220 System Overview 1-2 Service Interfaces 1-2 Standards-Based Conversion to ATM MGX 8220 Shelf 1-3 MGX 8220 Cards 1-4 MGX 8220 Management 1-6 New in Release 4.
Service Resource Modules 2-23 SRM-T1E1 2-24 SRM-T1E1 LED Indicators SRM-3T3 Chapter 3 2-25 2-25 Managing the MGX 8220 Shelf In-band Access 3-1 3-4 User Accounts and Privilege Levels Accounts 3-5 Privilege Levels 3-5 Passwords 3-6 3-5 Setting Up Management Connectivity to the MGX 8220 Shelf 3-6 Login Procedure 3-6 Connecting via the Maintenance Port 3-7 Setting Up IP Addresses for Control Port, LAN Port or In-band Access Connecting via the Control Port 3-8 Connecting via an In-band Connection 3-9
AUSM-8T1/E1 4-21 Frame Relay Access Service Module 4-25 STUN Connections 4-25 BSTUN Connections 4-26 FRAS Connections 4-27 Frame Relay to ATM Conversion 4-30 User Interface 4-30 Service Module Back Cards 4-31 T1/T3 Backcards 4-31 X.
Site Preparation 7-3 Rack and Space 7-3 Power 7-3 Cooling 7-4 Unpacking 7-4 Unpacking Each Container Parts Checklist 7-5 7-4 Rack Mounting the MGX 8220 Units 7-5 Horizontal Positioning 7-5 Vertical Positioning 7-6 Rack Mounting the Modules 7-9 Rack Mounting the Plenum or Spacer 7-11 Mounting the Electrostatic Wrist Strap 7-11 Collocating Cisco Units in the Same Rack 7-12 Connecting Power for DC Systems 7-14 DC Power to the Shelf 7-14 DC Power to the Fan Cooling Assembly Connecting Power for AC Systems AC
Troubleshooting the MGX 8220 Shelf 8-1 General Troubleshooting Procedures 8-2 Replacing Parts 8-2 Replacing a Front Card 8-3 Replacing a Line Module 8-3 Replacing a DC Power Entry Module 8-4 Replacing the Cooling, Booster, Plenum, and AC Power Assemblies Appendix A Cabling Summary Introduction 8-4 A-1 A-1 T3 Trunk Cabling A-1 IMATM T1/E1 Connectors A-2 Frame Relay Cabling A-2 T1 Cabling A-2 E1 Cabling A-3 X.
Card General B-13 FRSM-4E1 Specification B-13 Service Interface B-13 System Interface B-15 Virtual Circuits B-15 FRSM-8T1 Specification B-17 Service Interface B-17 System Interface B-19 Virtual Circuits B-19 Card General B-21 FRSM-8E1 Specification B-21 Service Interface B-21 System Interface B-23 Virtual Circuits B-23 AUSM Specification (4 Port) B-25 Service Interface (T1) B-25 Service Interface (E1) B-25 ATM Interface B-26 Virtual Circuits B-26 Card General B-27 CESM-4T1/E1 Specification B-28 Service In
L I S T Figure 1-1 MGX 8220 Shelf Figure 1-2 MGX 8220/BPX Switch Relationship Figure 1-3 Remote MGX 8220 Configuration Figure 2-1 MGX 8220 Shelf Configuration Figure 2-2 MGX 8220 Shelf Top Level Block Diagram Figure 2-3 Front View of the MGX 8220 Shelf with Cards Installed Figure 2-4 Rear View of the MGX 8220 Shelf Figure 2-5 MGX 8220 Power Entry Module Figure 2-6 AC Power Assembly (front without grill) Figure 2-7 AC Power Assembly (rear) Figure 2-8 DC Power System 2-9 Figure 2-9 Co
Figure 4-8 AUSM Cards Figure 4-9 CESM Card 4-14 4-17 Figure 4-10 8 Port CESM Cards Figure 4-11 AUSM-8T1/E1 Front Card Figure 4-15 Example FRASM Front Cards Figure 4-16 T1/E1 Backcards Figure 4-17 T1/E1 Redundancy Back Cards 4-20 4-24 4-29 4-32 4-33 Figure 5-2 Frame Relay Connection through an MGX 8220/BPX Network Figure 5-3 ATM -ATM Connection Screen Figure 6-1 MGX 8220 Stand-alone Configuration Figure 7-1 Mounting Rail Positions Figure 7-4 Using Angle Bracket to Secure Module to R
LIST Table 2-1 ASC LED Indicators Table 2-2 BNM LED Indicators Table 2-3 BNM-155 LED Indicators Table 2-4 SRM-T1E1 LED Indicators Table 3-1 UI Function/Access Path/Protocol Combinations Table 3-2 Format of Statistics Collection File Table 4-1 IMATM LED Indicators Table 4-2 AUSM LED Indicators Table 4-3 CESM LED 4-Port Indicators 4-18 Table 4-4 CESM 8-Port LED Indicators 4-21 Table 4-5 AUSM-8T1/E1 LED Indicators Table 5-1 Addcon Parameters Table 6-1 VPID Ranges Table 7-1 Plenum
Table A-20 Network Alarm Pin Assignments Table A-21 Standard Cables Available from Cisco Table A-22 Redundancy Y-Cables xviii Cisco MGX 8220 Reference, Release 4.
About This Manual Welcome to the reference manual for the Cisco MGX™ 8220 edge concentrator Release 4.1. This section discusses: • • • • • Objectives Audience Cisco WAN Switching Product Name Change Related Documentation Conventions Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM, a member of the Cisco Connection Family, is updated monthly. Therefore, it might be more current than printed documentation.
Cisco WAN Switching Product Name Change Cisco WAN Switching Product Name Change The Cisco WAN Switching products have new names. The BPX switch is now called the Cisco BPX® 8620 wide-area switch. The AXIS shelf is now called the Cisco MGX™ 8220 edge concentrator. Any switch in the IGX switch family (IGX 8, IGX 16 and IGX 32 wide-area switches) is now called the Cisco IGX™ 8400 series-wide area switch. The IGX 8 switch is now called the Cisco IGX™ 8410 wide-area switch.
Related Documentation Related Documentation The following Cisco publications contain additional information related to the operation of the Cisco WAN switching network: • Cisco StrataView Plus Operations Guide providing procedures for using the StrataView Plus network management system. • Release 9.
Conventions xxii Cisco MGX 8220 Reference, Release 4.
CHAPTER 1 Introducing the MGX 8220 Shelf This chapter describes the features and functions of Release 4.1 of the Cisco MGX 8220 edge concentrator. (See Figure 1-1.
MGX 8220 System Overview MGX 8220 System Overview MGX 8220 shelf is designed on the philosophy that large scale deployment of narrowband and medium-band services is best handled using an ATM infrastructure. In fact, support of these services can, by themselves, cost justify an ATM infrastructure. The same infrastructure can then be used to provide broadband services to customers when and where they are needed. The MGX 8220 shelf is an adjunct shelf to the BPX switch.
MGX 8220 System Overview Aggregation of Traffic into ATM Networks Each MGX 8220 shelf connects to the BPX switch across: • A T3 or E3 ATM to a BNI or T3/E3 BXM module on the BPX switch or • A SMF SONET ATM link to a BXM-155-8 port or BXM-155-4 port on the BPX switch Thus, the MGX 8220 shelf supports aggregation of traffic up to 80 T1 or E1 access ports or up to 1240 64-Kbps subscribers, onto a single T3, E3, or OC-3c trunk, using only a single port on the BPX switch.
MGX 8220 System Overview MGX 8220 Cards Unless a service module uses the SRM 3T3 distribution bus, MGX 8220 cards are installed as a pair consisting of a front card (function module) and a matching back card (line module) in the same slot, except for the SRM-T1E1 card which only has a front card. Communication between slots is achieved through buses in the shelf backplane. Release 4.
MGX 8220 System Overview • ATM UNI Service Module for T1 (AUSM-4T1) This card provides interfaces for up to four T1 lines, each of which can support one T1 ATM UNI or ATM NNI. • ATM UNI Service Module for E1 (AUSM-4E1) This card provides interfaces for up to four E1 lines, each of which can support one E1 ATM UNI or ATM NNI.
New in Release 4.1 MGX 8220 Management The functions and operation of the MGX 8220 shelf are achieved through downloaded firmware. The firmware controls the overall operation of the shelf and responds to configuration and other The MGX 8220 shelf has a command repertoire of over 60 user commands which are used to configure and display the various operational parameters of the shelf.
CHAPTER 2 Common Equipment Description This chapter provides a description of the common equipment hardware modules that make up the MGX 8220 shelf Release 4.1. The optional service modules are described in Chapter 4, “MGX 8220 Service Modules”.
System Overview In racks that contain more than two shelves, a booster cooling unit is used to provide additional cooling. The cooling assembly is powered from the main MGX 8220 shelf. An external view of a single MGX 8220 shelf configuration is shown in Figure 2-1. The arrangement of assemblies in a rack including cases for multiple MGX 8220 shelves is provided in chapter 7, “Installation and Start-up”. Figure 2-1 MGX 8220 Shelf Configuration An MGX 8220 shelf consists of various kinds of modules.
System Overview The Service Resource Module (SRM) communicates with all service modules over a Bit Error Rate Test (BERT) bus and provides the capability for testing T1 and E1 and subrate service module lines. The SRM can issue various loopup and loopdown commands towards the CPE and generate test bit patterns for any user specified Nx64 kbps port. The SRM can also provide 1:N redundancy for FRSM, AUSM, and CESM cards. The SRM is an optional card.
System Overview Figure 2-2 MGX 8220 Shelf Top Level Block Diagram Traffic Management Traffic management is provided by the MGX 8220 Connection Congestion Management (ACCM) feature. This feature is a virtual source/virtual destination rate based closed loop feedback scheme between nodes based upon ForeSight and the ATM Forum Available Rate specification. Periodically the round trip delay (RTD) of a cell to the far end and back is calculated for each actual connection.
MGX 8220 Shelf Hardware The Cisco ATM LMI extension (which must be specifically enabled) uses a Node Update Status Message which is sent (BPX 8620 to MGX 8220 shelf or MGX 8220 shelf to BPX 8620) whenever a change in Node Name, Node IP Address, Major Alarm Status, or Minor Alarm Status occurs. The message may optionally contain Qbin Status thereby allowing MGX 8220 to configure the BNI port egress queues.
MGX 8220 Shelf Hardware Figure 2-3 Front View of the MGX 8220 Shelf with Cards Installed Figure 2-4 Rear View of the MGX 8220 Shelf MGX 8220 Backplane The MGX 8220 backplane contains a main system bus and the cell bus for communication between card slots. The cell bus consists of two pairs of unidirectional buses (for redundancy) which are used for transferring cells between the cell bus slave modules (FRSM, AUSM, ASC) and the cell bus master (BNM).
Power Entry Options Typical MGX 8220 Hardware Weights Hardware Weight (lbs) MGX 8220 shelf with 16 boards 68 MGX 8220 main cooling unit 20 MGX 8220 booster cooling unit 14 MGX 8220 plenum 8 Average single MGX 8220 board 1.9 Power Entry Options DC Powered Systems In DC powered systems MGX 8220 supports one or two power entry modules (PEMs) each of which can be connected to its own independent 48VDC supply.
Power Entry Options AC Powered Systems In AC powered systems, a separate AC power assembly is required. (See Figure 2-6 and Figure 2-7.) This assembly is rack mounted under the shelf cooling assembly in the rack and is available in both a single and double AC source line version. The power assembly has a modular design and can be configured with up to six power supply modules, each module providing 875 watts of 48 VDC power.
Cooling Assemblies DC Power Drain and Circuit Protection Each card in an MGX 8220 shelf draws an average of 21 watts with a worst case shelf current of 14.40 amps. The circuit breaker in the DC Power Entry Module (PEM) is rated at 15.00 amps. The MGX 8220 circuits are protected as follows: • • The backplane has a 5 amp fast blow fuse for each slot position. Each board has a 1.5 amp circuit breaker in the -48 VDC line to the DC/DC converter.
Cooling Assemblies Main Cooling Assembly The main cooling assembly measures: • • • 5.25 inches (3u) high 17.45 inches wide 22 inches deep The main cooling assembly is capable of providing cooling for up to two MGX 8220 shelves and is mounted in the rack below the shelf (or shelves). The cooling assembly consists of fans which draw air through the front and exhaust air upwards through the shelf. An illustration of the cooling assembly is shown in Figure 2-9.
Optional Cabinet The Plenum Exhaust Chamber The Plenum chamber measures: • • • 3.5 inches (2u) high 17.45 inches wide 22 inches deep The exhaust plenum chamber is used in installations where the top of the unit must be enclosed. The plenum chamber is mounted in the rack immediately above the shelf (shelves). The chamber delivers air from the shelf below and out to the rear of the rack. The plenum chamber is preferred. Spacer Unit The spacer unit measures: • • • 1.75 inches (1 mounting unit) high 17.
MGX 8220 Shelf Controller Figure 2-10 MGX 8220 Cabinet MGX 8220 Shelf Controller The MGX 8220 Shelf Controller (ASC) is a two-card set consisting of an ASC front card and an ASC-BC back card. The shelf may contain a single ASC card set or a dual (redundant) card set. The cards are installed in slots three and/or four. An illustration of the ASC card set is provided in Figure 2-11.
MGX 8220 Shelf Controller Figure 2-11 ASC Cards Common Equipment Description 2-13
MGX 8220 Shelf Controller Console Ports There are three ASC hardware console ports located on the faceplate of the back card. The maintenance port is an RS-232 port used by a direct connect alpha-numeric terminal for inputting Command Line Interface (CLI) commands. Y-cables cannot be used on this port. This port must be used to make initial IP address assignments on the other ports before the other ports can be used. The control port and IEEE 802.
Broadband Network Modules ASC LED Indicators The ASC LED indicators are located on the faceplate of the front card. (Refer to Table 2-1.) Table 2-1 ASC LED Indicators Type of LED Color Meaning of LED ACTIVE (ACT) LED Green On indicates the card is active. STANDBY (STBY) LED Yellow Slow blink without Active LED indicates the card is in the boot state. Fast blink with Active LED indicates the ASC is downloading to another card or is being downloaded.
BNM-T3/E3 Figure 2-13 BNM-T3/E3 Cards 2-16 Cisco MGX 8220 Reference, Release 4.
BNM-T3/E3 The major function of the BNM is to provide a T3 or E3 ATM interface to a BNI or BXM-T3/E3 card in a BPX 8620 node. The BNM also provides a number of miscellaneous functions as follows: • Shelf Mastership Selects which core card to use as the master and which redundant bus to use. • Cell Bus Mastership BNM polls the other cards on the bus and grants permission to transmit cells across the bus. Polling is performed on a round-robin basis.
BNM-T3/E3 In this format, the virtual circuit is defined by: • • • Slot specific position of the VPI 4-bit slot number position of the VPI 10-bit logical channel number (LCN) assigned as the VCI The CC/FFCI/Supervisory field is used for ForeSight bits and a Supervisory bit. Figure 2-14 MGX 8220 ATM Trunk Cell Format Figure 2-15 CC, FFCI, EFCI, Supv, PTI, and CLP Fields 2-18 Cisco MGX 8220 Reference, Release 4.
BNM-T3/E3 BNM LED Indicators The BNM LED indicators are described in Table 2-2. All LEDs are located on the faceplate of the front card. Table 2-2 BNM LED Indicators Type of LED Color Meaning ACTIVE (ACT) LED Green On indicates the card set is in active mode. STANDBY (STBY) LED Yellow On indicates the card set is in standby mode. FAIL (FAIL) LED Red On indicates the BNM card set has failed or the line module is missing. PORT (PORT) LED Green Green indicates the port is active.
BNM-155 BNM-155 The Broadband Network Module-155 (BNM-155) is a two-card set consisting of a BNM-155 front card and a SMF-155-BC back card. The shelf may contain a single BNM-155 card set or a dual (redundant) card set. The cards are installed in slots 1 and/or 2. An illustration of the BNM-155 card set is shown in Figure 2-16. Figure 2-16 BNM-155 Cards 2-20 Cisco MGX 8220 Reference, Release 4.
BNM-155 The major function of the BNM-155 is to provide a 155 Mbps SONET ATM interface to a BXM-8-155 port or a BXM-4-155 port in a BPX 8620 node. The BNM-155 also provides a number of miscellaneous functions as follows: • Shelf Mastership This function selects which core card to use as the master and which redundant bus to use. • Cell Bus Mastership BNM-155 polls the other cards on the bus and grants permission to transmit cells across the bus. Polling is performed on a round-robin basis.
BNM-155 SMF-155 Back Card The SMF-155 backcard provides a physical single-mode fiber optic SONET OC-3 interface conforming to ANSI T1.105 and GR-253-CORE standards. This interface uses SC connectors. When used in a redundant configuration, redundant cabling is provided through Y-cables.
Service Resource Modules Push Buttons The BNM-155 has two push-buttons located on the faceplate of the front card. • Audible Cut-off (ACO) BUTTON: The ACO button is a momentary switch and is depressed during a major or minor alarm to deactivate the audible alarm relays and to turn the ACO LED on. Any new alarm will cause the relays to be reactivated.
SRM-T1E1 or to other service modules in the group using 1:N redundancy; another failure in any group results in a shelf alarm. This restriction does not apply to the SRM-3T3, for example, the SRM-3T3 can support multiple group failures. When the failed card is replaced, switch back to normal operation must be made by the user (it is not automatic). SRM-T1E1 An illustration of the SRM-T1E1 card is provided in Figure 2-17. Figure 2-17 SRM- T1E1 Card 2-24 Cisco MGX 8220 Reference, Release 4.
SRM-3T3 SRM-T1E1 LED Indicators All LEDs are located on the faceplate of the front card. The SRM-T1E1 LED indicators are described in Table 2-4. Table 2-4 SRM-T1E1 LED Indicators Type of LED Color Meaning ACTIVE (ACT) LED Green On indicates the card set is in active mode. STANDBY (STBY) LED Yellow On indicates the card set is in standby mode. FAIL (FAIL) LED Red On indicates the BNM-155 card set has failed or the line module is missing.
SRM-3T3 Figure 2-18 SRM- 3T3 Cards 2-26 Cisco MGX 8220 Reference, Release 4.
CHAPTER 3 Managing the MGX 8220 Shelf Release 4.1 of the MGX 8220 interface shelf allows the user to perform the following management functions: • Use a terminal or workstation to issue commands to configure, monitor, and manage the MGX 8220 resources in a network. The recommended method for managing most of the MGX 8220 functions is through StrataView Plus Release 9.1 via the in-band link from the BPX network.
Table 3-1 UI Function/Access Path/Protocol Combinations UI Function Physical Access Path TCP/IP Protocols Used Enter Commands using CLI ASC Maintenance Port None ASC Control Port SLIP, TCP, Telnet In-band BNM T3 Port IP, TCP, Telnet LAN Port IP, TCP, Telnet ASC Control Port SLIP, TCP, TFTP In-band BNM T3 Port IP, TCP, TFTP LAN Port IP, TCP, TFTP ASC Control Port SLIP, UDP, SNMP In-band BNM T3 Port IP, UDP, SNMP LAN Port IP, UDP, SNMP ASC Control Port SLIP, TCP, TFTP In-band BNM T
Control and LAN Ports The control port is the middle RS-232 connector on the ASC line module. The connector is an RS-232 DB-25 (female). For this type of connectivity, the control terminal (PC or workstation) must support TCP/IP using a SLIP serial connection and the control port must have been previously configured with an IP address. The control terminal can be connected either locally or remotely using modems.
Figure 3-3 Control Port Access Via a Terminal Server Figure 3-4 LAN Port Access to the MGX 8220 Shelf In-band Access In-band access uses a portion of the bandwidth of the MGX 8220 shelf/BPX T3 connection by reserving a number of ATM virtual connections for network management functions. (See Figure 3-5.
User Accounts and Privilege Levels Figure 3-5 In-band Access Example User Accounts and Privilege Levels MGX 8220 systems have security features built-in to prevent unauthorized use of the system. The security features require that each user on the system have a valid account (specified by a userID), password, and privilege level. The combination of account, password, and privilege level determines which commands the user can execute.
Setting Up Management Connectivity to the MGX 8220 Shelf Passwords A default password is used the first time a user logs in. Once a user is logged on, the user can change the password using the cnfpwd command. The password must consist of 6 to 15 characters. Only letters, numbers, a hyphen, an underscore, and spaces are allowed. The password is case-sensitive. For security, the password is not displayed as it is entered.
Setting Up Management Connectivity to the MGX 8220 Shelf Connecting via the Maintenance Port 1 After setting up and powering up the MGX 8220 shelf (refer to Chapter 5, “Service Configuration”), a CLI prompt appears on the terminal connected to the maintenance port. login: 2 Upon successful login, the standard CLI prompt showing the node name assigned to the shelf, the shelf number, logged in slot number, logged in card type, and status is displayed. (nodeName.shelf#.slot#.cardType.
Setting Up Management Connectivity to the MGX 8220 Shelf Connecting via the Control Port There are two methods of connecting to the control port. They are: • • via the COM port via a Terminal Server The procedures are described below.
The Command Line Interface (CLI) Connecting via an In-band Connection Before you can access MGX 8220 using the in-band method, you must set up or add a connection across the network. To configure a connection to MGX 8220 that will terminate on the in-band port of the ASC card, proceed as follows: 1 Configure the MGX 8220 in-band IP address using cnfifip with an interface type 37. Refer to the section, “Setting Up IP Addresses for Control Port, LAN Port or In-band Access”, in this chapter.
Establishing the MGX 8220 to BPX Connection Establishing the MGX 8220 to BPX Connection This procedure must be performed on the BPX at BOTH ends of the connection (“A” and “B”). This connection is established only once per shelf. On the BPX: 1 Perform an uptrk command to enable the T3 line that connects to your MGX 8220 shelf. For trunk number, specify the BNI trunk number used for the MGX 8220 T3 line. 2 Perform a cnftrk command.
MGX 8220 Management through SNMP Structure of the MIBs The MIB resides with an object ID of axis under the strataCom branch of the SNMP tree structure (1.3.6.1.4.1.351.110) as shown in Figure 3-6. The MIB consists of five major sections: • • • • • axisSystem cardGeneric cardSpecific axisLines axisServices Figure 3-6 MIB Tree Structure axisSystem The axisSystem section consists of three sub-sections.
MGX 8220 Management through SNMP cardGeneric The cardGeneric section contains objects that are common to all card types. This section contains five subsections. 1 The cardGeneric section contains objects that are common to all card types. This section contains five sub-sections. cardInformation contains card type, card slot, serial number, hardware and firmware revision number, and so forth. 2 cardInterface contains a list of physical interfaces and service types available on a card.
TFTP User Interface The services for frame relay are further organized as shown in Figure 3-7. Figure 3-7 Services Tree The MIB is distributed as a text file (ASN.1) on a diskette which can be printed and used to compile the MIB into an SNMP Manager. The MIB (and hence the MGX 8220 shelf) can also be managed from StrataView Plus (Release 8.1 and higher). For complete details of managing the shelf from StrataView Plus, refer to the Cisco StrataView Plus Operations Guide.
TFTP User Interface Upgrading Firmware MGX 8220 shelves are shipped with the latest version of the firmware already pre-loaded. MGX 8220 firmware upgrades can be downloaded over the network. Firmware and firmware upgrades for the MGX 8220 shelf are also distributed as a Firmware Media Kit on diskettes.
TFTP User Interface Configuring and Collecting Statistics Configuring statistics specifies to the shelf which statistic counters are to be collected. A file is constructed which lists the statistic counters to be collected and is downloaded into the shelf using TCP/IP TFTP. Collecting statistics causes the statistics to be transferred as a data file to the workstation. The workstation first requests the statistics and the MGX 8220 shelf responds by uploading the statistic file to the workstation.
TFTP User Interface Statistics Collection File Format Table 3-2 Format of Statistics Collection File Field Description Field Size Fixed Header Section Domain number of the MGX 8220 shelf 1 byte Node number of the MGX 8220 shelf 1 byte Release number (example, 725a for release 7.2.5.
TFTP User Interface Save TFTP Command Format The TFTP Get command is used to save a configuration as follows: tftp > bin >get configuration filename where configuration filename is: AXIS_SM_1_.PRI. For example: get AXIS_SM_1_5.serviceuser will save the configuration file for the service module in slot 5.
TFTP User Interface 3-18 Cisco MGX 8220 Reference, Release 4.
CHAPTER 4 MGX 8220 Service Modules In Release 4.
Inverse Multiplexer for ATM Trunk Module Inverse Multiplexer for ATM Trunk Module An illustration of the IMATM cards is provided in Figure 4-1. Figure 4-1 IMATM-T3-T1 and IMATM-E3-E1 Front Cards and RJ48-T3T1/E3E1 Back Card I 4-2 Cisco MGX 8220 Reference, Release 4.
Inverse Multiplexer for ATM Trunk Module The IMATM is a two-card set consisting of a function module front card and a line module back card.
Frame Service Module Figure 4-3 IMATM Used with Remote MGX 8220 Up to eight T1 or E1 links in the inverse multiplexed channel can be configured depending upon the bandwidth desired. Bandwidth of T1 links range from 1.54 Mbps for one link to 12.35 Mbps for all eight links. Bandwidth of E1 links range from 2 Mbps for one link to 16 Mbps for all eight links. The BNI port bandwidth is configured to match the IMATM bandwidth. Additional links can be provisioned to provide some protection against link failure.
Frame Service Module Figure 4-4 Example FRSM Front Cards Fractional FRSMs support one 56 kbps or one Nx64 kbps customer port (FR-UNI, FR-NNI, ATM-FUNI, and Frame Forwarding) per T1/E1 line. Channelized FRSMs support multiple 56 kbps or Nx64 kbps customer ports per T1/E1 line, up to the physical line’s bandwidth limitations. The 4-port FRSM supports up to a maximum of 256 connections (virtual circuits) which can be allocated across the 4 or 8 T1 or E1 lines in any manner.
Frame Service Module The main function of the FRSM service module is to perform the necessary conversions between the frame formatted data on its 4 or 8 T1 or E1 lines and ATM/AAL5 cell formatted data received and transmitted over the cell bus. The FRSM performs the FRSM frame to ATM cell conversion and the address translation between frame relay port/DLCIs, FUNI port/frame address, or Frame Forwarding port, and the ATM virtual connection identifiers (VPI/VCIs).
Frame Service Module ATM to Frame Relay Direction Each Frame Relay/ATM network interworking connection can be configured as one of the following CLP to DE mapping schemes: • If one or more ATM cells belonging to a frame has its CLP field set, the DE field of the frame relay frame will be set. • no mapping from CLP to DE. Congestion Indication Congestion on the Frame Relay/ATM network interworking connection is flagged by the EFCI bit.
Frame Service Module Figure 4-6 BPX Network with Service Interworking Connections The diagram shows an MGX 8220 unit and a FRSM to the right with three frame relay connection endpoints. These connections indicate the frame relay ends of service interworking connections.
Frame Service Module ATM to Frame Relay Direction Each frame relay to ATM service interworking connection can be configured as one of the following CLP to DE mapping schemes: • If one or more ATM cells belonging to a frame has its CLP set, the DE field of the frame relay frame will be set. • • DE is always 0. DE is always 1. Setting up the cell loss priority option is accomplished through the MGX 8220 cnfchanmap (configure channel map) command.
Frame Service Module Translation and Transparent Modes Service Interworking can operate in either Translation or Transparent mode on a per connection basis. In translation mode the FRSM performs protocol translation between the FR NLPID encapsulation (RFC 1490) and the ATM LCC encapsulation (RFC 1483). In transparent mode, no such translation takes place.
Frame Service Module Congestion Indication Congestion Indication mapping is provided in both directions. FUNI to ATM Direction EFCI is set to 0 for every ATM cell generated by the segmentation process. ATM to FUNI Direction If the EFCI field in the last ATM cell of a received segmented frame is set to 1, the CN bit in the FUNI header is set to 1. The two reserve bits (the same positions as C/R and BECN in Frame Relay header) are always set to 0.
High Speed Frame Service Module High Speed Frame Service Module The High Speed Frame Service Module (FRSM-HS1) is a two-card set consisting of a FRSM front card and a 4-port X.21 back card or a 2-port HSSI back card. Up to 10 FRSM-HS1 card sets may be installed in a shelf in slots 5 through 14. An illustration of a FRSM-HS1 front card is shown in Figure 4-7. Figure 4-7 Example FRSM-HS1 Front Card The FRSM-HS1 is similar to the standard FRSM service module except that it supports either four X.
ATM UNI Service Module ATM UNI Service Module The ATM UNI Service Module (AUSM) is a two-card set consisting of an AUSM function module front card and either a 4 T1 or a 4 E1 line module back card. The E1 line module cards are further categorized by BNC or DB15 connector type. Up to 10 AUSMs may be installed in a shelf in slots 5 through 14.
ATM UNI Service Module Figure 4-8 AUSM Cards 4-14 Cisco MGX 8220 Reference, Release 4.
ATM UNI Service Module AUSM LED Indicators The AUSM LED indicators are described in Table 4-2. All LED indicators are located on the faceplate of the front card. Table 4-2 AUSM LED Indicators Type of LED Color Meaning PORT LED Green Green indicates the port is active. Red Red indicates a local alarm on the port. Yellow Yellow indicates a remote alarm on the port. Off indicates the port has not been activated (upped). ACTIVE LED Green On indicates the card set is in active mode.
Circuit Emulation Service Module (4 port) Circuit Emulation Service Module (4 port) The 4 port Circuit Emulation Service Module (CESM) is a two-card set consisting of an CESM function module front card and either a 4 T1, 4 E1 line module back card. The E1 line module cards are further categorized by BNC or DB15 connector type. The three possible line modules are: • • • LM-DB15-4T1 LM-DB15-4E1 LM-BNC-4E1 Up to 10 CESMs may be installed in a shelf in slots 5 through 14.
Circuit Emulation Service Module (4 port) Figure 4-9 CESM Card MGX 8220 Service Modules 4-17
Circuit Emulation Service Module (8 port) CESM 4-Port LED Indicators The CESM 4-Port LED indicators are described in Table 4-3. All LED indicators are located on the faceplate of the front card. Table 4-3 CESM LED 4-Port Indicators Type of LED Color Meaning PORT LED Green Green indicates the port is active. Red Red indicates local alarm on the port. Off indicates the port has not been activated (upped). ACTIVE LED Green On indicates the card set is in active mode.
Circuit Emulation Service Module (8 port) The CESM converts DS1/E1 or data streams into CBR AAL1 cells for transport across the ATM network. The T1/E1 versions support a choice of structured or unstructured data transfer on a per physical interface basis. The CESM card supports loopback diagnostics features through the addchanloop and addlnloop commands. Refer to the Cisco MGX 8220 Command Reference for details of these commands.
Circuit Emulation Service Module (8 port) Figure 4-10 8 Port CESM Cards 4-20 Cisco MGX 8220 Reference, Release 4.
AUSM-8T1/E1 CESM 8-Port LED Indicators The CESM 8-port LED indicators are described in Table 4-4. All LEDs are located on the faceplate of the front card. Table 4-4 CESM 8-Port LED Indicators Type of LED Color Meaning PORT LED Green Green indicates the port is active. Red Red indicates there is a local alarm on the port. Off indicates the port has not been activated (upped). ACTIVE LED Green On indicates the card set is in active mode.
AUSM-8T1/E1 3 UNI/NNI access to CPE and other Networks This application allows access over an UNI to IMA-based CPE and over an NNI to another ATM network. 4 NNI/NNI access to CPEs This application supports ATM ports over single T1/E1 line and IMA ports over multiple T1/E1lines (connected to IMA based CPE).
AUSM-8T1/E1 AUSM-8T1/E1 LED Indicators AUSM-8T1/E1 LED indicators are described in Table 4-5. All LEDs are located on the faceplate of the front card. Table 4-5 AUSM-8T1/E1 LED Indicators Type of LED Color Description PORT LED Green Green indicates the port is active. Red Red indicates a local alarm on the port. Yellow Yellow indicates a remote alarm on the port. Off indicates the port has not been activated (upped). ACTIVE LED Green On indicates the card set is in active mode.
AUSM-8T1/E1 Figure 4-11 AUSM-8T1/E1 Front Card 4-24 Cisco MGX 8220 Reference, Release 4.
Frame Relay Access Service Module Frame Relay Access Service Module The Frame Relay Access Service Module (FRASM) is a two-card set consisting of a FRASM front card (supporting channelized, T1, 8 port), and an 8T1 back card. Up to ten FRASMs may be installed in a shelf in slots 5 through 14. The main function of the FRASM is to allow IBM network devices and mainframes operating under SNA/SDLC or 3270/BSC (binary synchronous) protocols to communicate with each other using Frame Relay over an ATM network.
Frame Relay Access Service Module An application of a STUN connection is shown in Figure 4-12. An SNA/SDLC device is connected to a FRASM port using SDLC protocol. The traffic is first converted to frame relay and then to ATM cells for transmission over the network. At the other end, the traffic is first converted back to frame relay and the SDLC traffic is then extracted for transmission to a front end communication processor and then to the IBM mainframe.
Frame Relay Access Service Module An application of a BSTUN connection is shown in Figure 4-13. An bisynch device, such as an IBM 3270, is connected to a FRASM port using bisynch protocol. The traffic is first converted to frame relay and then to ATM cells for transmission over the network. At the other end, the traffic is first converted back to frame relay and the bisynch traffic is then extracted for transmission to a front end communication processor and then to the IBM mainframe.
Frame Relay Access Service Module Figure 4-14 Using FRASM for a FRAS BNN connection Using FRAS BNN, the FRASM supports: • • • • • • • Point-to-point SDLC/frame relay lines. Multidropped devices over a single logical port. These can be assigned to different connections. Only one dlci to a single logical port. Only one connection to a single dlci. One PVC for each logical port. Two-way simultaneous device transmission. Two-way simultaneous mode between different devices.
Frame Relay Access Service Module Figure 4-15 Example FRASM Front Cards MGX 8220 Service Modules 4-29
Frame Relay Access Service Module Frame Relay to ATM Conversion The conversions are Cell Loss Priority, Congestion Indication and PVC Status Management. Cell Loss Priority Cell Loss Priority mapping is provided in both directions. • Frame Relay to ATM Direction Each Frame Relay/ATM network interworking connection can be configured as one of the following DE to CLP mapping schemes: — DE bit in the frame relay frame is mapped to the CLP bit of every ATM cell generated by the segmentation process.
Service Module Back Cards Details of the CLI and individual commands are found in the Cisco MGX 8220 Command Reference publication. Service Module Back Cards The available MGX 8220 back cards are as follows. T1/T3 Backcards The MGX 8220 shelf provides back cards for service modules that connect to 4 T1, 4 E1, 8 T1, and 8 E1 lines. Depending upon the number of ports and the type of line (T1 or E1) DB-15, BNC, RJ48, and SMB connectors are used.
Service Module Back Cards Figure 4-16 T1/E1 Backcards 4-32 Cisco MGX 8220 Reference, Release 4.
Service Module Back Cards Figure 4-17 T1/E1 Redundancy Back Cards MGX 8220 Service Modules 4-33
Service Module Back Cards 4-34 Cisco MGX 8220 Reference, Release 4.
CHAPTER 5 Service Configuration Setting up a Frame Relay Connection A frame relay connection can be setup either from StrataView Plus or via the MGX 8220 command line interface. Via StrataView Plus Setting up a frame relay connection is normally performed from StrataView Plus using the Connection Manager graphical user interface. An example of the StrataView Plus screen used for making an MGX 8220 frame relay connection is shown in Figure 5-1.
Setting up a Frame Relay Connection Figure 5-1 StrataView Plus Connection Manager Screen for the MGX 8220 Shelf Via the Command Line Interface The Command Line Interface (CLI) provides the capability to set up a variety of frame relay connections. FRSM Network Interworking Connections The following sections describe how to establish an end-to-end frame relay connection with network interworking and MGX 8220 FRSM end points.
Setting up a Frame Relay Connection located at “B”, is attached to the other MGX 8220 shelf. This chapter describes how a frame relay connection can be established to permit bidirectional communication between the frame relay equipment at “A” and “B”. Figure 5-2 Frame Relay Connection through an MGX 8220/BPX Network To make the connection, the path from “A” to “B” is made up of three segments as shown in Figure 5-2. When using CLI, each segment must be established and configured separately.
Setting up a Frame Relay Connection Step 3 If not configured, configure the T1 line to the frame relay equipment using the cnfln command. Specify parameters as appropriate. If not enabled, enable the port to the frame relay equipment by performing an addport command using the parameters as follows: For port number, specify an unused port number (1 to 96). For line number, specify the FRSM line used to connect to the frame relay equipment (1 to 4, with 1 being the top line).
Setting up a Frame Relay Connection Establish the BPX to BPX Segment The following steps should be performed to establish the required BPX to BPX segments. 1 Perform an addcon command at one of the BPX nodes (not both) as follows. For slot number and port number, specify slot and port of the BNI port connected to MGX 8220. For VPI, specify the slot number in the MGX 8220 shelf that contains the FRSM attached to the BPX.
AUSM Connections FRSM Service Interworking Connections FRSM service interworking connections are made in the same manner as the network interworking connections except that chan_type in the MGX 8220 addchan command is specified as service interworking (transparent or translation) and the connection end that is remote from the MGX 8220 is an ATM UNI.
AUSM Connections Via the Command Line Interface Use the following sequence of commands to establish an ATM UNI/NNI connection using the AUSM card. The connection is between a T1 or E1 ATM UNI on the AUSM card and an ATM service interface elsewhere in the IPX/BPX network.
CESM Connections BPX to BPX Segment For the BPX segment, set up the connection in the same manner as that for FRSM. The connection type should be specified as ABR, CBR, or VBR to match the connection type used at the connection endpoint (for example, AUSM). The parameter values map directly from those specified at the connection endpoint. CESM Connections Use the following procedure to setup a CESM connection. Via the Command Line Interface (CLI) Setting up a CESM connection is performed through the CLI.
FRASM Connections For all three types of connections the procedure is to first establish a physical line for the connection using the add line command (addln) in which the physical back card port is specified and then to establish and configure ports on that line using the add port (addport) command for each port. In the addport command the port number, line number, line speed, time slot, the port type, the encoding type, and the interface type are specified.
FRASM Connections 3 Once the line and port have been specified, use the add link station command (addls) to specify the FRASM port link station address and xid. A link consists of two link stations and the connecting transmission medium. In order to start an SNA session a link between the two nodes needs to be established. In a FRAS BNN connection the SNA part of the connection is terminated at the FRASM; a session requires that the FRAS BNN port act as a link station.
FRASM Connections STUN Connections To complete the STUN connections, proceed as follows: 1 Use the addln command to specify the physical port number (from 1 to 8) which is to be used for the STUN connection. 2 Use the add STUN group command (addstungroup) command to create a STUN group. This command is used to specify the group number and the protocol type. When a STUN connection is made, the connection is assigned to a group in the add STUN port command.
FRASM Connections 5 Once the group, line and port have been specified, use the add link station command (addls) to specify the FRASM port link station address and xid. A link consists of two link stations and the connecting transmission medium. In order to start an SNA session a link between the two nodes needs to be established. Since in a STUN connection the SNA can be terminated at the FRASM, a session requires that the FRAS BNN port act as a link station.
FRASM Connections BSTUN Connections To complete the BSTUN connections, proceed as follows: 1 Use the addln command to specify the physical port number (from 1 to 8) which is to be used for the BSTUN connection. 2 Use the add BSTUN group command (addbstungroup) command to create a BSTUN group. This command is used to specify the group number and whether local acknowledge is to be. When a BSTUN connection is made, the connection is assigned to a group in the add BSTUN port command.
FRASM Connections 5 Use the add channel (addchan)command to specify the frame relay portion of the connection. This consists of specifying the DLCI and committed rate for the channel.
CHAPTER 6 MGX 8220 in Stand-alone Applications A stand-alone application is defined as one in which the MGX 8220 shelf is connected to some device (router or ATM switch) other than a BPX 8620. The interface between MGX 8220 shelf and the connected device must be ATM UNI/NNI over either T3, E3, nxT1, nxE1, OC-3c as shown in Figure 6-1. Figure 6-1 MGX 8220 Stand-alone Configuration This chapter provides guidance in those areas of configuration that are peculiar to the stand-alone configurations.
The LMI Interface In-band Access To create an in-band access to the MGX 8220 shelf: 1 Use an out-of-band method to configure the MGX 8220 IP address to 37. Use the cnfifip command. 2 Configure the IP address on the connected router or ATM switch 3 The MGX 8220 shelf uses a VPI of 3 and VCI of 8 for in-band access. The connected router or ATM switch must be able to support these values. Configure the router or switch for these VPI/VCI values. 4 From the ATM network, telnet into the MGX 8220 address.
Setting Trap Managers Setting Trap Managers In stand-alone applications, trap managers are configured through the CLI using either the cnftrapmgr command or the addtrapmgr command. Trapmanagers registered (added) using the cnftrapmgr command will age. That is to say the trap manager will be disabled automatically after 30 minutes and must be reregistered if it is to continue to exist.
Provisioning FRSM Channels Table 6-1 VPID Ranges Interface Type VPID AUSM-4T1E1 AUSM-8E1T1 UNI 1 - 20 1 - 20 NNI 1 - 255 1 - 340 There are two methods that can be used to identify the network VPI associated with an AUSM VP connection. The first method is to use the dspadrxlat command. This command lists all the VC and VP connections currently existing on the shelf in slot number/channel number order showing the connection type and the VPI value for each connection.
Provisioning AUSM Channels 2 Use the addport command to add a frame relay port to the enabled line. Then use the dspports command to verify the port has been added. For example: myshelf.1.5.FRSM.a>addport myself.1.5.FRSM.a>dspports 3 Use the addchan to add a frame relay “endpoint”. Then use the dspchans command to verify the channel has been added. For example: myshelf.1.5.FRSM.a>addchan myself.1.5.FRSM.
Provisioning AUSM Channels 6-6 Cisco MGX 8220 Reference, Release 4.
CHAPTER 7 Installation and Start-up This chapter describes the site requirements and the procedures for • • • Unpacking Installing Powering up the Cisco MGX 8220 shelf Warning Installation should be performed by trained service personnel only. Warning Read the Installation Instructions before you connect the system to its power source. Safety Recommendations You must install the MGX 8220 shelf in compliance with national and local electrical codes.
Safety Recommendations • • Never attempt to lift alone an object that might be too heavy. Always power OFF all power supplies and unplug all power cables before opening, installing, or removing a chassis. Maintaining Safety with Electricity Warning Before working on a unit or near power supplies, unplug the power cord(s) on AC units; disconnect the power at the circuit breaker on DC units.
Site Preparation Site Preparation Site preparation involves space, power, and cooling considerations. Rack and Space The MGX 8220 shelf is designed for mounting in a standard 19 inch rack. The MGX 8220 site requires a 19 inch rack with sufficient available mounting units for the modules to be installed (5U for each shelf, 3U for the main cooling assembly, 2U for the booster cooling assembly, 2U for the plenum chamber, or 1U for the spacer unit and 3U for the AC power module).
Unpacking An AC circuit breaker is recommenced for the AC power source which supplies AC power to each MGX 8220 shelf. This circuit breaker should protect against excess currents, short circuits, and earth faults in accordance with national and local electrical codes. — United States—National Fire Protection Association (NFPA) 70, the National Electrical Code — Canada—Canadian Electrical Code, Part I, C22.
Rack Mounting the MGX 8220 Units Parts Checklist Before proceeding with the installation, use the parts checklist to verify that all the parts you ordered are present and in good condition. Plug-in cards may be shipped already installed in the shelf or under separate cover. The exact number of cards will vary from site to site, depending on the selected configuration.
Rack Mounting the MGX 8220 Units Vertical Positioning The MGX 8220 units are mounted in a specific order from the bottom to the top. The AC power module (if used) is mounted first, then the fan cooling assembly is mounted, then the first shelf is mounted, and then the second shelf (if installed) is mounted. If a third and/or fourth shelf is installed, a booster cooling assembly must be mounted immediately above the second shelf and immediately below the third and fourth shelves.
Rack Mounting the MGX 8220 Units Figure 7-2 Rack Mounted MGX 8220, One and Two Shelf Configurations Installation and Start-up 7-7
Rack Mounting the MGX 8220 Units Figure 7-3 Rack Mounted MGX 8220, Three and Four Shelf Configurations 7-8 Cisco MGX 8220 Reference, Release 4.
Rack Mounting the MGX 8220 Units Rack Mounting the Modules Start by mounting the lowest module first and work upwards. In AC system, the lowest module is the AC power module, in DC systems it is the main cooling module. Use the following steps to mount the modules. Step 1 Determine the vertical position in the rack where the shelf or shelves are to be installed. From this determine the vertical position of the lowest module.
Rack Mounting the MGX 8220 Units Note The shelf weighs 30 lbs to 60 lbs (13.6 kg to 27.2 kg) depending upon the number of installed cards. Have two persons, one each side, lift the shelf into the rack. The lower modules can be used as a temporary support for the shelf until the shelf is attached to the rack. Center Mount Where there is restricted depth in the rack, the holes in the side of the module can also be used to mount the shelf with the center of the module mounted onto the front of the rack.
Rack Mounting the MGX 8220 Units Figure 7-5 Keyhole Style Bracket Rack Mounting the Plenum or Spacer Either the plenum chamber or the spacer unit (not both) should be mounted immediately above the shelf. The decision of which one to use is dependent upon the configuration of equipment in the rack and how the air is to be expelled. The plenum delivers air to the rear of the rack and is used in normal UL compliant installations where the top of the unit must be covered.
Rack Mounting the MGX 8220 Units Figure 7-6 Electrostatic Wrist Strap Kit Figure 7-7 Installed Wrist Strap Kit Collocating Cisco Units in the Same Rack Different Cisco units, for example, MGX 8220 shelf, BPX switch, and INS, can be collocated in the same rack or cabinet. When this is done, however, the inclusion and positioning of MGX 8220 power, cooling, booster, plenum, and spacer modules relative to the MGX 8220 shelf must be the same as those when MGX 8220 shelf is used in a dedicated rack.
Rack Mounting the MGX 8220 Units Figure 7-8 Multi-system Racks Installation and Start-up 7-13
Connecting Power for DC Systems Connecting Power for DC Systems These sections describes how to connect DC power to the MGX 8220 shelf. Warning The power to the shelf is OFF at this point. DO NOT apply power by pressing the black button until later. DC Power to the Shelf DC power is connected as described in the following steps. Step 1 Press the red button on each power entry module (PEM) so their black buttons are in the out position. This opens the circuit breakers in the power entry modules.
Connecting Power for DC Systems Figure 7-10 PEM Cable Clamp DC Power to the Fan Cooling Assembly A cable is provided with the main and booster cooling assemblies for delivering power from the shelf to the fan cooling assembly. The cable provides for redundancy and the cooling unit can be powered from two independent shelves. 1 Connect the cable to the connector on rear of the shelf located between the power entry modules (P1 for primary and P3 for redundant).
Connecting Power for DC Systems Figure 7-11 DC Power Cabling for One and Two Shelf Racks 7-16 Cisco MGX 8220 Reference, Release 4.
Connecting Power for DC Systems Figure 7-12 DC Cabling for Three and Four Shelf Rack Installation and Start-up 7-17
Connecting Power for AC Systems Connecting Power for AC Systems This sections describes how to connect AC power to the MGX 8220 shelf. AC Input Power The AC power assembly can be configured with either a single primary input AC source or optional primary and secondary (redundant) input AC sources. AC power is supplied through connectors on the rear panel. Available Power The AC power assembly holds up to six independent 875W power supplies each of which supplies power to a common output bus.
Connecting Power for AC Systems Figure 7-13 AC Power Assembly Block Diagram Each of the right three connectors of the group of four also provides a power supply status signal for monitoring power supply performance by an MGX 8220 shelf. Each of these connectors provides a status signal for a particular power supply as shown in the diagram. The group of three connectors on the left of the rear panel supply status signals for any remaining power supplies that may be configured in the assembly.
Connecting Power for AC Systems Repeat steps 1 and 2 for any other shelves in the rack being powered from the same power assembly. Step 3 AC power source is connected to the IEC receptacle(s) on the rear of the power module. The power assembly is available in two versions: one with a single AC power input and one with dual (redundant) AC power inputs. The AC power cord(s) should be plugged into a 200/240VAC nominal, single phase, dedicated wall outlet capable of supplying 15 amps.
Connecting Power for AC Systems Figure 7-15 AC Cabling for Three and Four Shelf Racks Installation and Start-up 7-21
Cable Management Cable Management A fully loaded multi-MGX 8220 rack may have between 150 and 200 cables attached to the rack’s modules. Cable management kits are available for installation on the rear of rack modules. These kits provide the means to route the power and data cables in a neat and orderly fashion to and from the modules in the rack. Depending upon the number of racks in the shelf and the number of cables connected to the shelves, one or more cable management kits may be required.
Cable Management Figure 7-16 Cable Management Kit on the Plenum Chamber Main Cooling and Booster Cooling Kit The cable management kit that is installed on the cooling module and booster cooling module, consists of a set of brackets, a power routing assembly, and the cable management panel as shown in Table 7-2. Table 7-2 Cooling and Booster Kit Bill of Materials Description Quantity Number 10 flat washer 12 10-32, 0.375 in. long screws with locking nuts 8 10-32, 0.375 in.
Cable Management Step 2 Install the cable management panel onto the outer brackets using four screws, locking nuts, and washers for each bracket. Step 3 Install one or both cable supports onto the MGX 8220 shelf above the cooling module using a number 10-32 thread forming screw for each support. Use two washers between the cable support on the left hand support only. Figure 7-17 Installation of the Cable Management Kit on the Cooling Module 7-24 Cisco MGX 8220 Reference, Release 4.
Cable Routing Cable Routing Use the following guidelines to route the cables. Power Cable Routing There are two kinds of power cables on an MGX 8220 shelf. • The power cables that power the shelf, either directly from a 48VDC source or from a power supply module. • The power cables that power the cooling module and booster module. At the MGX 8220 shelf end the cables should be routed through the power cable support so they can be routed down the side of the rack as shown in Figure 7-18.
Cable Routing Figure 7-19 Routing Power Cables at the Cooling Assembly Routing Data Cables Data Cables connected to the MGX 8220 shelf back cards are routed up or down the cable management panel where they are feed through the fingers and routed to the left or right side of the rack. The cables can then be routed to their appropriate equipment (router, for example). (See Figure 7-20.) Figure 7-20 Routing Data Cables at the Cooling Assembly 7-26 Cisco MGX 8220 Reference, Release 4.
Readying the Cards Readying the Cards Warning Before handling any cards, ground yourself by clipping the wrist strap that is supplied with MGX 8220 shelf to a convenient metallic contact on the shelf and to your wrist. This simple procedure prevents static electrical damage to the cards. Systems may be shipped with empty slots with filler cards or with plug-in cards installed. If filler cards are installed in any of the slots, they may need to be replaced with functional cards.
Making the BNM Trunk Connection To install a front card: Step 1 Position the rear card guides over the appropriate slot at the top and bottom of the card cage. Step 2 Gently slide the card all the way into the slot and press the insertion/extractor lever until it snaps into the vertical position. Note The card should slide in and out with only slight friction on the adjacent board’s EMI gaskets. Do not use force. Investigate any binding.
Making the BNM Trunk Connection Figure 7-22 Connecting BNM-T3 or BMN-E3 Cables If redundant BNM cards are being used, use Y-cable adapters as shown in Figure 7-23. It is recommended that specially designed short T3 or E3 Y-cables be purchased from Cisco.
Making the Service Interface Connections Figure 7-23 Cabling for Redundant BNM Cards Making the Service Interface Connections The customer’s data is connected to the MGX 8220 shelf through T1, E1 lines, X.21, or HHSI lines. Service lines using DB15 and RJ-48 connectors need only one cable per port. Service lines using BNC or SMB connectors require two cables (one transmit and one receive) from the E1 port of the customer’s equipment to a E1 port on an MGX 8220 line module.
Alarm Output Connection Alarm Output Connection Dry contact relay closures are available for forwarding MGX 8220 alarms to a user office alarm system. Separate visual and audible alarm outputs are available for both major and minor alarm outputs. The MGX 8220 alarm outputs are available from a DB15 connector on the BNM line module faceplate. Refer to Appendix B, “Specifications”, for the pinouts on this connector. Use switchboard cable for running these connections.
Initial Start-up of the MGX 8220 Shelf 4 T1, E1, and T3 cables are installed. 5 Control console is connected. To apply power to a DC system, press the BLACK button on each of the power entry modules until they latch in the IN position. To apply power to an AC system, switch the circuit breakers on the rear of the power module to the ON position. The LEDs on the front cards may flash for a few moments while the shelf performs a self-test and then settle down to Active or Standby.
CHAPTER 8 Repair and Replacement This chapter describes periodic maintenance procedures, troubleshooting procedures, and the replacement of major parts for the Release 4.1 MGX 8220. Caution For protection against shock hazard, verify both power cords are disconnected before servicing unit. Caution Vergewissern sie sich, däss beide Netzkäbel vom Gerät getrennt sind, bevor Sie mit den Wärtungsärbeiten beginnen.
Replacing Parts General Troubleshooting Procedures The MGX 8220 shelf run self tests continuously to ensure proper function. When the unit finds an error condition that affects its operation, it downs the card or line that is affected. If it is caused by a card failure and there is a redundant card, the failed card is downed and the standby card becomes the active card.
Replacing a Front Card Save the electrostatic bag, foam, and carton. These packaging materials are needed to return the failed part to Cisco. Replacing a Front Card This section describes how to replace an MGX 8220 front card.
Replacing Parts To install a back card: Step 1 Position the extraction levers so they lie flush with the card’s faceplate. Step 2 Position the rear card guides over the appropriate slot at the top and bottom of the card cage. Step 3 Gently slide the card all the way into the slot and tighten the two captive screws on the back card’s faceplate. Tighten the upper and lower screws alternately to prevent mis-alignment of the card. Do not overtighten. Tighten the screws to secure the card.
A P P E N D I X A Cabling Summary Introduction This appendix provides details on the cabling required to install the MGX 8220 shelf. Note In all cable references, the transmit direction is from the MGX 8220 shelf, receive is to the MGX 8220 shelf. T3 Trunk Cabling Trunk cables connect the T3 port on the BNM backcard to the BNI T3 port on the collocated BPX node. Refer to Table A-1 and Table A-2 for details.
Frame Relay Cabling IMATM T1/E1 Connectors The IMATM backcard can have eight RJ-48 connectors or eight SMB connectors. Connections are made through short pigtail cables, two adapter cables, and two Y-cables for use with redundant IMATM cards. (Refer to Table A-1.) Figure A-1 IMATM T1/E1 Pigtail Cables Frame Relay Cabling T1 Cabling Trunk cables connect the customer DSX-1 crossconnect point or T1-E1 Channel Service Unit to the MGX 8220 node at the FRSM T1 back card (DB15-4T1).
Frame Relay Cabling Table A-4 T1 Connector Pin Assignments Pin No. Description 1 Transmit, Tip 2 Transmit Pair Shield 3 Receive, Tip 4 Receive Pair Shield 9 Transmit, Ring 11 Receive, Ring Note Transmit direction is towards the T1 trunk. E1 Cabling BNC Connector E1 trunk cables connect the customer DSX-1 crossconnect point or E1 Channel Service Unit to the MGX 8220 node at the FRSM E1 back card (BNC-4E1). (Refer to Table A-5 and Table A-6.
Frame Relay Cabling DB15 Connector E1 trunk cables connect the customer DSX-1 crossconnect point or E1 Channel Service Unit to the MGX 8220 node at the FRSM E1 back card (DB15-4E1). (Refer to Table A-7 and Table A-8.) Table A-7 E1 Trunk/Circuit Line Cabling Specification Cable Parameter Description Cable Type: Db15-4E1 Western Electric 22 AWG, ABAM individually shielded twisted pair (120 ohm balanced). Two pair per T1 line (1 transmit and 1 receive). Cable Connector: Male DB-15 subminiature. Max.
Frame Relay Cabling X.21 Port Connectors The X.21 ports use DB-15 female connectors (DCE type according to ISO 4903). (Refer to Table A-9.) Table A-9 Pinouts for X.21 DB-15 Connectors Pin No.
Frame Relay Cabling HSSI Port Connectors The HSSI (High Speed Serial Interface) port uses a female SCSI-II connector (Connector type according to ANSI/TIA/EIA-613). (Refer to Table A-10.) Table A-10 Pinouts for SCSI-II Connector Pin No.
DC Power Cabling Figure A-2 RJ-48 Connectors DC Power Cabling DC Power connections are made to the DC Power Entry Modules at the rear of the MGX 8220 shelf. (See Figure A-3.) Refer to Table A-11 and Table A-12 for acceptable cable and wire types. DC wiring is generally provided by the customer. (Refer to Table A-11.) Table A-11 DC Power Wiring Cable Parameter Description Wiring: Three conductor, 12 AWG recommended wire gauge, min. 60°C insulation rating, copper conductors only.
Control and Clock Cabling Table A-12 AC Power Cables Cable Parameter Description Cable: Provided with 8 feet (2.3 m) of 3-conductor wire with plug.
Control and Clock Cabling Modem Cable Figure A-4 shows a modem cable that is used for connecting modems to the MGX 8220 control and maintenance ports. Figure A-4 Null Modem Cable External Clock Input Cabling The external clock input cable connects the external clock inputs through the T3E3-D, T3E3-B and SMF-155 EXT. TMG. connectors. The clock may be 1.544 Mbps for T3E3-D or 2.048 Mbps for T3E3-D. (Refer to Table A-15 through Table A-18.
External Alarm Cabling Table A-16 Pin No. T1 Connector Pin Assignments for EXT. TMG. Description 1 2 Transmit Pair Shield 3 Receive, Tip 4 Receive Pair Shield 9 11 Receive, Ring E1 Clock Cabling T3E-B, T3E3-D, or SMF-155 Table A-17 E1 Clock Cabling—T3E3-B Cable Parameter Description Cable Type 75-ohm coax cable for unbalanced connection. One cable pair (1 receive) per E1 clock input. Cable Connector: One female BNC for unbalanced connection; male DB15 for balanced connection. Max.
Standard MGX 8220 Cables Table A-20 Network Alarm Pin Assignments Pin No. Alarm Description 1 Audible—Major Normally open 2 Common 9 Normally closed 4 Visual—Major Normally open 5 Common 12 Normally closed 7 unused n.c. 8 unused n.c. 3 Audible—Minor Normally open 11 Common 10 Normally closed 6 Visual—Minor Normally open 14 Common 13 Normally closed 15 unused n.c. Standard MGX 8220 Cables Table A-21 lists the various cables that may be ordered directly from Cisco.
Redundancy “Y” Cable Redundancy “Y” Cable The redundancy cables are a special “Y” cable available from Cisco. They are required for redundant trunk and data interfaces. Table A-22 lists the Y-cables used with various MGX 8220 back cards. Table A-22 Redundancy Y-Cables Y- Cable Used On P/N E3/T3 trunk T3E3-D T3E3-B T3-E3-Y A-12 Cisco MGX 8220 Reference, Release 4.
A P P E N D I X B Specifications BNM-T3 Specification Intershelf Link T3 Line Interface Connector: BNC connector per ANSI T1.404 T3 Cable Recommended: Coax, 75 ohm, 728A or equivalent T3 Line Signal: DSX-3 Specification per ANSI T1.102 and ATT PUB 54014 T3 Line Rate: 44.736 Mbps ± 895 bps T3 Framing: Asynch. C-bit Parity per ANSI T1.
BNM-T3 Specification Diagnostics: Header of first cell received with invalid egress translation entries Number of cells dropped due to invalid egress translation entries Synchronization: Derives 8KHz shelf synchronization clock from a variety of sources: Card General • internal 8 kHz clock (10 ppm) • BNM-T3 PLCP • external T1/E1 clock port with a clock rate of 1.544 Mbps±50 bps (T1) or 2.
BNM-E3 Specification BNM-E3 Specification Intershelf Link E3 Line Interface Connector: BNC connector per ANSI T1.404 E3 Cable Recommended: Coax, 75 ohm, 728A or equivalent E3 Line Signal: Per G.703 E3 Line Rate: 34.368 Mbps ± 20 PPM E3 Framing: G.832 and G.804 Input Jitter Tolerance: Per G.703 Output Jitter Generation: Per G.703 PMD Layer Alarms: LOS, OOF, AIS, RAI PMD Layer Performance Statistics: LCV, LES, %EFS, LSES, SEFS, PCV, PES, PSES, SEFS, UAS Trans.
BNM-E3 Specification Card General Synchronization: Derives 8KHz shelf synchronization clock from a variety of sources: • E3 physical interface • External T1/E1 clock port with a clock rate of 1.544 Mbps±50 bps (T1) or 2.
BNM-155 Specifications BNM-155 Specifications Intershelf Link Specifications Common Specifications Framing: SONET STS-3c per ANSI T1.105 PMD Layer Alarms: Loss of Signal (LOS) Severely Errored Framing (SEF) Loss of Frame (LOF) Line Alarm Indication Signal (AIS-L) STS Path Alarm Indication Signal (AIS-P) Line Remote Defect Indication (RDI-L) Loss of Pointer (LOP) STS Path Remote Defect Indication (RDI-P) Transmission Convergence Protocol: Per GR-253-CORE and ANSI T1.
BNM-155 Specifications Input Jitter Tolerance Per Gr-253-CORE Output Jitter Generation Per Gr-253-CORE General Card Specifications Synchronization Derives 8 kHz shelf synchronization clock from a variety of sources: Internal 8 kHz (±10 ppm) BNM-155 PLCP External T1/E1 clock port with a clock rate of 1.544 MHz ±50 ppm (T1) or 2.
ASC Specification ASC Specification 802.
SRM-T1/E1 Specification 1 to N Redundancy: Active (green) Indicator for each T3: Active (green) Maintenance/Serviceability Features: DS1 Loopback towards service modules Hot pluggable Reliability: >85000 hous MTBF Card Size: Frontcard 7.25” x 16.25” Backcard 7” x 4.5” Power: 48VDC, 50 W Loopback codes: Fractional T1 in-band loopback ANSI T1/E1-2/92-003 R3 DS0 loopback TA-TSY-000055 TA-TSY-000057 TA-TSY-0000476 Monitoring trouble codes: B-8 Cisco MGX 8220 Reference, Release 4.
FRSM-4T1 Specification FRSM-4T1 Specification Service Interface Line Interface connector: DB15—when used with LM-DB15-4T1 line module Line Rate: 1.
FRSM-4T1 Specification LMI receive status inquiry request count (s) LMI transmit status inquiry request count LMI invalid receive status count (s) LMI signaling protocol (keep alive time-out count) (s) LMI sequence number error count (s) LMI receive status transmit count (in response to request) LMI transmit status transmit count (in response to request) Transmit frames during LMI alarm (s) Transmit bytes during LMI alarm (s) LMI update status transmit count (in response to configuration changes) Diagnosti
FRSM-4T1 Specification System Interface ATM Layer: Per CCITT I.361 and ATM UNI v3.1 AAL Layer: AAL5 per Draft CCITT I.363 FR-Cell Interworking: Per Draft CCITT I.555 and I.36x.1, as summarized in Frame Relay Forum, FR/ATM PVC Interworking Implementation Agreement FRF.
FRSM-4T1 Specification Number of frames transmitted with DE set (s) Number of frames discarded due to reassembly errors (s) Number of frames transmitted during LMI logical port alarm(s) Number of frames transmitted with FECN set (s) Number of frames transmitted with BECN set (s) Number of transmit frames discarded (s) Number of transmit bytes discarded Number of transmit frames discarded due to: CRC error (s) egress Q depth exceeded (s) egress DE threshold exceeded source abort physical link failure (T1) A
FRSM-4E1 Specification Card General Indicators: Per Card: Active (Green), Standby (Yellow), Fail (Red) Lines (one per): Active & Okay (Green) Active & Local Alarm (Red) Active & Remote Alarm (Yellow) Maintenance/Serviceability Features: Internal Problem Isolation Loopbacks Hot-pluggable Reliability: > 65000 hours MTBF Card Size: FRSM-4T1: 7.25” x 16.25” LM-DB15-4T1: 7.0” x 4.
FRSM-4E1 Specification Frame Relay Performance Counters (per Port; n x DS0): Receive frames discarded due to Aborts Receive frames discarded due to illegal header (EA bit)(s) Receive frames discarded due to CRC errors (s) Receive frames discarded due to alignment errors (s) Receive frames discarded due to unknown DLCI (s) Receive frames discarded due to illegal frame length (s) Receive frames discarded due to DE threshold exceeded Receive frames with DE already set Receive frames with FECN already set Rec
FRSM-4E1 Specification System Interface ATM Layer: Per CCITT I.361 and ATM UNI v3.1 AAL Layer: AAL5 per Draft CCITT I.363 FR-Cell Interworking: Per Draft CCITT I.555 and I.36x.1, as summarized in “Frame Relay Forum, FR/ATM PVC Interworking Implementation Agreement FERF.
FRSM-4E1 Specification ATM cells: Number of cells transmitted to BNM Number of cells transmitted with CLP bit set Number of OAM AIS cells transmitted (s) Number of OAM FERF cells transmitted (s) Number of BCM cells transmitted Number of OAM end-end loopback cells transmitted (s) Number of OAM segment loopback cells transmitted Number of cells received from BNM Number of cells received with CLP bit set Number of OAM AIS cells received (s) Number of OAM FERF cells received (s) Number of BCM cells received Nu
FRSM-8T1 Specification FRSM-8T1 Specification Service Interface Line Interface connector: RJ-48 when used with LM-RJ-48-8T1 line module Line Rate: 1.
FRSM-8T1 Specification LMI receive status inquiry request count (s) LMI transmit status inquiry request count LMI invalid receive status count (s) LMI signaling protocol (keep alive time-out count) (s) LMI sequence number error count (s) LMI receive status transmit count (in response to request) LMI transmit status transmit count (in response to request) Transmit frames during LMI alarm (s) Transmit bytes during LMI alarm (s) LMI update status transmit count (in response to configuration changes) Diagnosti
FRSM-8T1 Specification System Interface ATM Layer: Per CCITT I.361 and ATM UNI v3.1 AAL Layer: AAL5 per Draft CCITT I.363 FR-Cell Interworking: Per Draft CCITT I.555 and I.36x.1, as summarized in Frame Relay Forum, FR/ATM PVC Interworking Implementation Agreement FRF.
FRSM-8T1 Specification Number of frames transmitted with DE set (s) Number of frames discarded due to reassembly errors (s) Number of frames transmitted during LMI logical port alarm(s) Number of frames transmitted with FECN set (s) Number of frames transmitted with BECN set (s) Number of transmit frames discarded (s) Number of transmit bytes discarded Number of transmit frames discarded due to: CRC error (s) egress Q depth exceeded (s) egress DE threshold exceeded source abort physical link failure (T1) A
FRSM-8E1 Specification Card General Indicators: Per Card: Active (Green), Standby (Yellow), Fail (Red) Lines (one per): Active & Okay (Green) Active & Local Alarm (Red) Active & Remote Alarm (Yellow) Maintenance/Serviceability Features: Internal Problem Isolation Loopbacks Hot-pluggable Reliability: > 65000 hours MTBF Card Size: FRSM-8T1: 7.25” x 16.25” LM-DB15-4T1: 7.0” x 4.
FRSM-8E1 Specification Frame Relay Performance Counters (per Port; n x DS0): Receive frames discarded due to Aborts Receive frames discarded due to illegal header (EA bit)(s) Receive frames discarded due to CRC errors (s) Receive frames discarded due to alignment errors (s) Receive frames discarded due to unknown DLCI (s) Receive frames discarded due to illegal frame length (s) Receive frames discarded due to DE threshold exceeded Receive frames with DE already set Receive frames with FECN already set Rec
FRSM-8E1 Specification System Interface ATM Layer: Per CCITT I.361 and ATM UNI v3.1 AAL Layer: AAL5 per Draft CCITT I.363 FR-Cell Interworking: Per Draft CCITT I.555 and I.36x.1, as summarized in “Frame Relay Forum, FR/ATM PVC Interworking Implementation Agreement FERF.
FRSM-8E1 Specification ATM cells: Number of cells transmitted to BNM Number of cells transmitted with CLP bit set Number of OAM AIS cells transmitted (s) Number of OAM FERF cells transmitted (s) Number of BCM cells transmitted Number of OAM end-end loopback cells transmitted (s) Number of OAM segment loopback cells transmitted Number of cells received from BNM Number of cells received with CLP bit set Number of OAM AIS cells received (s) Number of OAM FERF cells received (s) Number of BCM cells received Nu
AUSM Specification (4 Port) AUSM Specification (4 Port) Service Interface (T1) Line Interface Connector: Miniature 15 pin female DB-15 (100 Ω)—(Use LM-DB15-4T1) Line Rate: 1.544 Mbps ± 50 bps (T1) Synchronization: Transmitter may be either loop-timed or Receiver or synchronized to shelf (called normal mode) Line Code: Bipolar 8 Zero Substitution (B8ZS) as specified in ANSI T1.408 (T1) Line Framing: Extended Superframe Format (ESF 24 frame multiframe) as ANSI T1.
AUSM Specification (4 Port) ATM Interface ATM UNI v3.1, ITU-T G.804, per CCITT I.361. Channel Configuration: 256 per card. May be allocated across any of the T1 (E1) ports. VPI/VCI: VPI: 0–255. VCI: 0–4096. Traffic Classes: CBR, VBR, VBR+. UPC Parameters: PCR, SCR (VBR), CCDV (CBR). Congestion Control Support: ForeSight (towards Network for VBR+). ForeSight Parameters: MIR, PIR, Rate Up, Rate Down, QIR, QIR Timeout, IBS.
AUSM Specification (4 Port) Egress: Other Counters: Number of cells received from the CellBus. Number of cells discarded due to queue exceeded QDepth (per Egress Q). Number of cells discarded due to queue exceeded CLP threshold (per Egress Q). Number of cells received with CLP = 1. . Ingress: Number of OAM cells discarded. Number of AIS cells received from the port. Number of RDI (FERF) cells received from the port. Number SegmentLpBk cells received from the port.
CESM-4T1/E1 Specification CESM-4T1/E1 Specification Note The CESM-4T1/E1 specification is the same as the FRSM-4T1/4E1 specification except as shown below. Service Interface (T1/E1) Synchronization: Transmitter is synchronized to the shelf (Stratum traceable) Line Framing: None Channel Configuration: Number of CBR Interfaces: 4 Cell Delay Variation (CDV): Configurable by setting reassembly buffer depth to a maximum of 250 msec.
IMATM Specification Transmit state: SendingAIS cesXmtATMState = 3 Sending FERF cesXmtATMState = 4 Receiving AIS cesRcvATMstate = 3 Receiving FERF cesRcvATMstate = 4 Cell Loss cesCellLossStatus = 2 Receiving state: Note All service specific alarms, except RED, will be passed through transparently. Loss of Signal (RED) at CBR interface will result in All Ones cells being transmitted. Brief periods of cell loss “Starvation” will result in insertion of 47 octects of one’s.
IMATM Specification Physical Layer Interface T1 Line rate: 1.544Mbps +/- 50 bps. IMATM Synchronization: Digital PLL to synchronize all transmitters to one of the following: the T3 line, any of the T1 lines, or the MGX 8220 shelf 8KHz clock. Line Code: Bipolar 8 zero substitution (B8ZS) as specified in ANSI T1.408. Line Framing: Extended Superframe Format (ESF 24 frame multifrm) as in ANSI T1.408. Input Jitter Tolerance: Per ATT TR 62411.
IMATM Specification Physical Layer Interface T3 Line Rate: 44.736 Mbps ±20 ppm (T3) Line Code: B3ZS for DS3 Framing: Physical Layer Conversion Procedure for DS3 to ANSI TA-TSY-000772 and TA-TSY-000773 Input Compliance: Per ATT 54014 and CCITT G.703 Physical Layer Interface E3 Line Rate: 34.368 Mbps ±20 ppm (T3). Line Code: HDB3 for E3. Framing: Per ITU-T Recommendation G.804 and G.832. Input Jitter Tolerance: Per ATT TR 62411. ATM Interface: Cell support (type) STI cells.
IMATM Specification AIM Groups and Links Counters: High Speed Port: DS3/E3 physical layer line alarm indication and insertion DS3/E3 SUNI-PDh number of cells:Tx and Rx PLL clock recovery status AIM Group: Number of cells received from AIM interface Number of cell discarded due to error in Cell Header Number of cells from AIM interface discarded due to Queue Full on both Ingress and Egress directions Number of ACP cells received Number of ACP cells received with errors Number of LCP cells received Number
I N D E X A AAL5 4-6 AC powered systems 2-8 accounts 3-5 addchan 5-10, 5-12, 5-14 addport 5-9, 5-11, 5-13 aggregation of traffic 1-3 alarm output connection 7-31 ASC 2-2, 2-12 ASC LED Indicators 2-15 ATM Trunk Interface 2-17, 2-21 AUSM 4-13, 4-16, 4-18 AUSM-8T1/E1 4-21 B backplane description 2-6 BERT 2-23 Bit Error Rate Testing 2-23 BNM 2-2 BNM buttons 2-19, 2-23 BNM description 2-15, 2-20 BNM LED indicators 2-19, 2-22 BNM trunk connection 7-28 Broadband Network Module 2-15 C cabinet 2-11 cable manageme
I P IMATM 2-3, 4-2 in-band management 3-1, 3-4 installing back cards 7-28 installing MGX 8220 in a rack 7-6 installing the front cards 7-27 interface connectivity 3-6 interworking network 4-6 service 4-7 Inverse Multiplexing for ATM Trunk Module 2-3 IP addresses for control port/in-band access 3-7 parts checklist 7-5 password 3-6 plenum chamber 2-11 power cable routing 7-25 power entry options 2-7 preventive maintenance 8-1 privilege level 3-5 rack mounted MGX 8220, Three and Four Shelf Configurations 7
T T1 and/or E1 connections 7-30 TCP/IP TFTP 3-1 TFTP User Interface 3-13 traffic aggregation 1-3 Translation 4-10 Translation and Transparent Modes troubleshooting, node 8-2 4-10 U unpacking 7-4 Upgrading Firmware userID 3-5 3-14 Index 3
4 Cisco MGX 8220 Reference, Release 4.
Cisco MGX 8220 Command Reference 78-5398-01 Release 4.1 May 1998 Documentation Response Card Feedback on the Cisco MGX 8220 Reference, Release 4.1, 78-5398-01, May 1998 Please respond to the following statements by checking a number from 1 to 5: 5 Strongly agree 4 Somewhat agree 3 Neutral 2 Somewhat disagree 1 Strongly disagree Overall, I am satisfied with this document.
