Packet Over SONET Module Installation and User Guide Extreme Networks, Inc. 3585 Monroe Street Santa Clara, California 95051 (888) 257-3000 http://www.extremenetworks.com Published: June 2001 Part number: 100080-00 Rev.
©2001 Extreme Networks, Inc. All rights reserved. Extreme Networks and BlackDiamond are registered trademarks of Extreme Networks, Inc. in the United States and certain other jurisdictions.
Contents Preface Introduction Terminology xiii xiv Conventions xiv Related Publications 1 Overview BlackDiamond 6800 Series Switch Overview BlackDiamond I/O Modules About the PoS Modules Physical Description Feature Summary Function Summary Service Provider Features 2 1-1 1-2 1-3 1-4 1-7 1-9 1-11 Installing or Replacing a PoS Module Preparing for Installation Software and Hardware Version Requirements Cables and Connectors Safety Information Tools I/O Module Slot Locations Contents xv 2-1 2-2 2
3 Inserting and Securing a Module 2-7 Making Network Interface Cable Connections 2-9 Verifying the Module Installation LED Indicators Displayed Slot Status Information 2-10 2-10 2-10 Troubleshooting Identifying Problem Categories Fixing Configuration Errors Upgrading the Switch Software Image Upgrading the PoS Module Software Image Fixing Power-Related Problems Fixing Link Down Problems Identifying Conditions for Replacing an I/O Module 2-11 2-12 2-13 2-14 2-14 2-15 2-15 2-16 Removing and Replacing
SONET Events Contents 3-19 Configuring and Monitoring PPP Functions PPP Background Information Commands for Configuring and Monitoring PPP Functions Configuring the PoS Checksum Configuring PoS Scrambling Configuring Link Maintenance Configuring PPP Link Quality Monitoring Configuring PPP Authentication Configuring the Name and Password for the Port Creating an Authentication Database Entry Configuring the Network Control Protocol Configuring the MPLS Control Protocol Configuring the Delayed-Down-Time In
MIB Support for Flow Statistics Configuring and Monitoring APS Functions APS Network Configuration Options Sample Line-Switching Scenario APS Benefits Commands for Configuring and Monitoring APS Enabling and Disabling APS Creating and Deleting an APS Group Adding a Port to an APS Group Deleting a Port from an APS Group Configuring APS Authentication Configuring Nonrevertive or Revertive Mode Configuring APS Timers Configuring APS Lockout Configuring Forced Switch Mode Configuring Manual Switch Mode Resettin
Commands and Functions Not Supported B A-8 Supported MIBs and Standards SONET/SDH Support Standards Supported for SONET/SDH MIBs Supported for SONET/SDH B-2 B-2 B-2 PPP Support Standards Supported for PPP MIBs Supported for PPP B-2 B-2 B-3 QoS and DiffServ Support Standards Supported for DiffServ B-3 B-3 Flow Statistics Support MIBs Supported for Flow Statistics B-4 B-4 Automatic Protection Switching Support Standards Supported for APS MIBs Supported for APS B-4 B-5 B-5 Index Index of Commands
viii Contents
Figures 1-1 1-2 1-3 2-1 2-2 3-1 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9 3-10 3-11 3-12 3-13 3-14 3-15 3-16 3-17 3-18 3-19 3-20 Figures PoS module Front panel views of the P3cSi and P3cMi modules Front panel views of the P12cSi and P12cMi modules Slot locations in a BlackDiamond 6800 series chassis Inserting and securing a PoS module Default configuration for BCP IPCP configuration APS configuration, port redundancy APS configuration, module redundancy APS configuration for switch redundancy View of logical connec
x Figures
Tables 1 2 2-1 3-1 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9 3-10 3-11 3-12 3-13 3-14 3-15 3-16 3-17 3-18 3-19 A-1 Tables Notice Icons Text Conventions PoS Module and Port LEDs SONET Parameters and Values SONET Port Commands Summary of SONET Statistics SONET Events PPP Commands VLAN-related Commands QoS-Related Commands Default Code Point-to-QoS Profile Mapping Assured Forwarding Classes and Three-Level Drop Precedence Assured Forwarding Classes and Two-Level Drop Precedence Mapping PHBs to QoS Profiles NetFlow Ver
A-2 A-3 A-4 xii Summary of Commands with Enhanced Syntax Summary of Commands with Augmented Implementation Summary of Commands Not Supported for PoS Ports A-5 A-6 A-8 Tables
Preface This Preface provides an overview of this guide, describes guide conventions, and lists other publications that may be useful. Introduction This guide provides the required information to install the PoS module in a BlackDiamond® 6800 series switch from Extreme Networks and perform the initial module configuration tasks. This guide is intended for use by network administrators who are responsible for installing and setting up network equipment.
Terminology When features, functionality, or operation is specific to one of the PoS modules, the specific module name is used. Explanations about features and operations that are the same across all of the PoS modules simply refer to the product as the “module.” Switches and switch modules that use naming conventions ending in “i” have additional capabilities that are documented throughout this user guide. For the most current list of products supporting the “i” chipset, consult your release notes.
Related Publications Table 2: Text Conventions Convention Description Screen displays This typeface indicates command syntax, or represents information as it appears on the screen. Screen displays bold This typeface indicates how you would type a particular command. The words “enter” and “type” When you see the word “enter” in this guide, you must type something, and then press the Return or Enter key. Do not press the Return or Enter key when an instruction simply says “type.
xvi Packet Over SONET Module Installation and User Guide
1 Overview The Packet over SONET (PoS) modules are I/O modules for the BlackDiamond 6800 series chassis-based system. These modules connect a BlackDiamond 6800 series switch to the SONET infrastructure used by metropolitan area service providers and operators of server co-location networks.
Overview BlackDiamond I/O Modules In addition to the PoS modules described in this guide, the BlackDiamond 6800 series switch supports a variety of I/O modules that offer a choice of port connections over different media types and distances. For more information, see the BlackDiamond 6800 Series Switch Hardware Installation Guide. BlackDiamond 6800 series I/O modules can be inserted or removed at any time, without causing disruption of network services.
About the PoS Modules About the PoS Modules Two key applications for the PoS modules are: interconnecting metropolitan area networks across the SONET network infrastructure, and interconnecting server co-location network sites directly using SONET links. In the first application, the metropolitan area network service provider can build service network sites in various cities, then use PoS modules in a BlackDiamond 6800 series switch to connect those cities to a carrier’s SONET infrastructure.
Overview Physical Description The PoS module consists of a printed circuit board mounted on a metal carrier that acts as the insertion vehicle in a BlackDiamond 6800 series switch (see Figure 1-1). The module carrier also includes ejector/injector handles and captive retaining screws at each end of the module front panel. The module occupies one slot in a BlackDiamond 6800 series switch.
About the PoS Modules The PoS module has the following key components: • Two high-performance network processors • A General Purpose Processor (GPP) subsystem The network processors are programmable devices that participate with the Extreme “i” chipset to support expanded functionality, features, and flexibility. The GPP subsystem handles system control and I/O module management functions. The GPP subsystem resides outside of the I/O module data path to optimize performance.
Overview Module status LEDs Port status LEDs Network interface ports Port status LEDs Service ports BD_P3 Figure 1-2: Front panel views of the P3cSi and P3cMi modules 1-6 Packet Over SONET Module Installation and User Guide
About the PoS Modules Module status LEDs Port status LEDs Network interface ports Port status LEDs Service ports BD_P12 Figure 1-3: Front panel views of the P12cSi and P12cMi modules Feature Summary The PoS modules provide the following key networking functions: • Support for both Synchronous Optical Network (SONET) and Synchronous Digital Hierarchy (SDH) modes of operation • Support for the Point-to-Point Protocol (PPP) suite, including: — Link Control Protocol (LCP) — Link Maintenance option for L
Overview • Efficient support for IP routing over SONET via IPCP • Support for Transparent LAN Services (TLS) over SONET via BCP • Support for MultiProtocol Label Switching Control Protocol (MPLSCP) via PPP • Support for jumbo frames • Extensive support for Quality of Service (QoS) and Differentiated Services (DiffServ), including: — Eight ingress queues and eight egress queues per interface — Ingress and egress rate shaping and limiting — IEEE 802.
About the PoS Modules Function Summary The following sections provide brief descriptions of the key functions provided by the PoS modules. Each of these sections is expanded into greater detail in Chapter 3. SONET and SDH SONET and SDH are the two terms used to identify a time division multiplexing technology that is optimized for transporting voice traffic across a digital optical network, but that is also capable of providing high-speed capacity for transporting data.
Overview MPLS labeled packets can also be encapsulated in Ethernet headers and transported across a PPP link using BCP. Jumbo Frames The PoS module ports provide jumbo frame support that is similar to that provided by Ethernet ports on a BlackDiamond 6800 series switch. Jumbo frames are Ethernet frames that are larger than 1522 bytes, including four bytes used for the cyclic redundancy check (CRC).
About the PoS Modules Service Provider Features The PoS modules provide the following features for service provider environments: • DSCP mapping • VLAN ID (VID) tag mapping • VLAN ID (VID) tag nesting • Port tunneling You can use the diffserv dscp-mapping command to configure a mapped relationship between an input DSCP and an associated output DSCP. Each PoS port supports three DSCP mapping tables: one of the tables is used in the ingress direction; two are used for egress flows (onto the SONET link).
Overview The PoS module also supports port tunneling. Port tunneling can be used to encapsulate and transport the raw High-Level Data Link Control (HDLC) encapsulated byte stream from one PoS port to another PoS port across an MPLS network. This allows service providers to tunnel different types of SONET HDLC streams across a non-SONET backbone like Ethernet. NetFlow Statistics Each PoS port can maintain and export statistics for the flows that traverse the associated SONET link.
About the PoS Modules Automatic Protection Switching Automatic Protection Switching, or APS, is a physical-layer resiliency feature specified in the SONET standards. Multiplex Section Protection, or MSP, is the APS equivalent in the SDH standard, which is also supported by the PoS module. Throughout this guide, the terms APS and Automatic Protection Switching are used to refer to the protection switching features of both standards.
Overview 1-14 Packet Over SONET Module Installation and User Guide
2 Installing or Replacing a PoS Module This chapter includes information on the following topics: • Preparing for Installation on page 2-1 • Inserting and Securing a Module on page 2-7 • Making Network Interface Cable Connections on page 2-9 • Verifying the Module Installation on page 2-10 • Troubleshooting on page 2-11 • Removing and Replacing an I/O Module on page 2-16 Preparing for Installation This section describes the preparation steps that you must perform before inserting and securing a PoS modul
Installing or Replacing a PoS Module Software and Hardware Version Requirements The PoS modules are compatible with “i”-series MSM modules only, but are compatible with both Summit and “i”-series I/O modules. For the most current list of I/O modules supported for use with the PoS modules, consult your release notes.
Preparing for Installation The MSM software package is compatible with the PoS module software package when the following conditions are true: • Base ExtremeWare version numbers match • Technology release names match • Extended major version numbers match • Extended minor version number of the MSM software package is equal to or greater than the extended minor version of the PoS module software package The extended build number is ignored for compatibility comparisons.
Installing or Replacing a PoS Module Use the appropriate type of optical-fiber cable—single-mode or multimode—to connect the PoS ports of your BlackDiamond 6800 series switch to another switch or router. Single-mode and multimode optical-fiber cables can be acquired from a number of different cable vendors, including AMP, Anixter, AT&T, Red-Hawk, and Siemens.
Preparing for Installation Tools You need the following tools to install an Extreme Networks I/O module in a BlackDiamond 6800 series chassis. • ESD-preventive wrist strap and grounding leash that is provided with the BlackDiamond 6800 series chassis. • Number 1 Phillips-head screwdriver. • Optical-fiber cable of the type appropriate to the I/O module version you plan to install (see “Cables and Connectors” on page 2-3 for more information about cable and connector requirements).
Installing or Replacing a PoS Module MSM module slots I/O module slots ESD wrist strap connector 1 2 3 4 A B 50015 50015 I/O module slots 5 6 7 8 51032 51040 52011 STATUS STATUS DIAG DIAG R ER G DIA S TU STA V EN R ST M S SY R ER V EN R ST M S SY 1 1 9 17 25 2 10 18 26 1 5 9 2 6 10 3 7 11 4 12 20 28 4 8 12 5 13 21 29 6 14 22 30 7 15 23 31 8 16 24 32 3 = ACTIVITY AMBER = LINK OK GREEN FLASHING GREEN = DISABLED 11 19 AMBER = ACTIVITY 27 G
Inserting and Securing a Module Inserting and Securing a Module This section describes the procedures for inserting and securing a PoS module. Caution: I/O modules must be installed in any of the numbered chassis slots labeled slots 1 through 8. I/O modules do not fit in slots A or B. Forceful insertion can damage the I/O module.
Installing or Replacing a PoS Module (a) Loosen captive screws 1 2 3 4 A B 50015 50015 5 6 7 8 (b) Pivot ejector/injector handles POWER POWER DC OUT AC IN 50020 DC OUT AC IN 50020 PoS_004 Figure 2-2: Inserting and securing a PoS module When the module is pushed into the chassis slot, the ejector/injector handles will begin pivoting to their closed position.
Making Network Interface Cable Connections f Use a #1 Phillips-head screwdriver to tighten the captive screw on each end of the module front panel to prevent the module from being dislodged from the backplane connectors and to ensure satisfactory protection from EMI. Repeat this procedure for additional modules, if applicable.
Installing or Replacing a PoS Module Verifying the Module Installation After you have installed the PoS module and connected the fiber optic cables, verify that the I/O module is working correctly. Check the LEDs on the front panel of the I/O module and use the command-line interface (CLI) show slot command to display slot-specific information about the newly installed module.
Troubleshooting Troubleshooting This section describes how to isolate module-specific problems and determine when it is appropriate to remove and replace a PoS module.
Installing or Replacing a PoS Module Identifying Problem Categories Table 2-1 lists the color states of PoS module and port LEDs and describes their associated meanings. The STATUS and DIAG LEDs apply to the module as a whole; the port status LED for each port provides status information about that port. Table 2-1: PoS Module and Port LEDs LED Color Indicates Corrective action STATUS Green blinking Normal operation (No action required.
Troubleshooting Table 2-1: PoS Module and Port LEDs (continued) LED Port x Color Indicates up1 Corrective action Green Link (No action required.) Green blinking Link disabled See “Fixing Link Down Problems” on page 2-15. Amber blinking, returning to green Activity on link (No action required.) Amber blinking Link down; SONET link problem See “Fixing Link Down Problems” on page 2-15. Off No received signal See “Fixing Link Down Problems” on page 2-15. 1.
Installing or Replacing a PoS Module Upgrading the Switch Software Image If the STATUS LED on the PoS module turns amber and blinks, use the show slot command to display the configured slot type. The output from this command also displays information about the module state, including the CARD UNKNOWN message. This message indicates that the installed ExtremeWare software image version does not recognize the module type. To correct this problem, you will need to upgrade the ExtremeWare software image.
Troubleshooting Fixing Power-Related Problems If the LEDs on all other modules are off, verify that the BlackDiamond 6800 series switch is connected to an appropriate power source and is turned on. If the LEDs on the new module are off, but the LEDs on other modules are on, try ejecting and reseating the unpowered module. If the module still does not power up, it is possible that the available system power is not sufficient to handle the power requirements of the added module.
Installing or Replacing a PoS Module Identifying Conditions for Replacing an I/O Module If the STATUS LED on the PoS module turns amber and blinks, use the show slot command to display the slot status information.
Removing and Replacing an I/O Module Removing an I/O Module To remove an I/O module, follow these steps: 1 Put on the ESD-preventive wrist strap that is provided with the chassis, and verify that the metal end of the leash is connected to the ground receptacle located on the top-left corner of the BlackDiamond 6800 series switch front panel. 2 Identify the I/O module to be replaced and write down the following information for later use: — The chassis slot number and the type of I/O module.
Installing or Replacing a PoS Module 2-18 Packet Over SONET Module Installation and User Guide
3 Configuring the PoS Module This chapter describes the ExtremeWare commands that support the PoS module. Other commands and background information used to configure I/O modules and switch behavior in a network are documented in the ExtremeWare Software User Guide. For hardware installation information on the BlackDiamond 6800 series switch, see the BlackDiamond Hardware Installation Guide.
Configuring the PoS Module Basic PoS Module Configuration Information This section uses several typical usage and configuration schemes to provide a brief overview of the PoS module configuration process as a general context for the detailed command description sections that follow.
Basic PoS Module Configuration Information PoS Port Configuration and Default VLAN Assignments The ports on the PoS modules are identified by a port number that is a combination of the slot number where the module is installed and the port number on the module. The nomenclature for the port number is as follows: slot:port For example, you would refer to the four ports on an OC-3 PoS module installed in slot 4 of the BlackDiamond 6800 series chassis by the port numbers 4:1, 4:2, 4:3, and 4:4.
Configuring the PoS Module configuration values will bring up the ports as members of the default VLAN. However, the commands to enable BCP together with the default SONET values (see Table 3-1) are listed below for reference. The command unconfig ppp ports will also reset these default values.
Basic PoS Module Configuration Information Table 3-1 lists the configurable SONET link parameters and their default values.
Configuring the PoS Module Routing Over PoS Ports While you can configure BCP to perform routing over PoS ports, IPCP might be a better choice than BCP in those cases where the link will carry only routed IP traffic, because it provides a more efficient encapsulation scheme than does BCP, and thereby increases the maximum link throughput.
Basic PoS Module Configuration Information 4 Disable BCP on the SONET ports using the config ppp bcp off ports command, and then enable IPCP on the SONET ports using the config ppp ipcp on ports command. The following configuration commands apply to the PoS module installed in slot 8 of BlackDiamond switch 1, as shown in Figure 3-2.
Configuring the PoS Module APS Port Redundancy Figure 3-3 is an example of a single-module APS redundancy configuration, in which the working line and the protection line are terminated in the same PoS module in the BlackDiamond 6800 series switch. This configuration provides simple protection against line failures.
Basic PoS Module Configuration Information APS Module Redundancy Figure 3-4 is an example of a two-module APS redundancy configuration, in which the working line and the protection line are terminated in two different PoS modules in the same BlackDiamond 6800 series switch. This configuration provides simple protection against both line and module failures.
Configuring the PoS Module APS Switch Redundancy Figure 3-5 is an example of a two-switch APS redundancy configuration, in which the working line is terminated in a PoS module in one BlackDiamond switch, while the protection line is terminated in a different PoS module in a different BlackDiamond switch. This configuration expands protection to include line, module, and switch failures.
Basic PoS Module Configuration Information Configuration Commands for APS: Switch Redundancy The following configuration commands apply to the PoS module installed in slot 8 of BlackDiamond switch 1, as shown in Figure 3-5. create vlan apsvlan config apsvlan add port 6:1 config apsvlan ipaddress 192.168.1.
Configuring the PoS Module Configuring and Monitoring SONET Ports In addition to the ExtremeWare commands for configuring slot and port behavior that are described in the ExtremeWare Software User Guide, this section describes the commands used to configure SONET link attributes.
Configuring and Monitoring SONET Ports Commands for Configuring and Monitoring SONET Ports Table 3-2 describes the ExtremeWare commands for configuring and monitoring SONET ports. Each command is described in detail in the sections that follow. Table 3-2: SONET Port Commands Command Description config sonet clocking [line | internal] ports Configures the clocking source for the specified SONET ports.
Configuring the PoS Module Configuring SONET Clocking You can configure each port on the PoS module to use either line clocking, where the clock source is recovered from the received bit stream, or internal clocking, where the clock source is based on an internal clock. The default is internal.
Configuring and Monitoring SONET Ports Configuring the Signal Degrade Threshold A Signal Degrade (SD) event is generated if the BER for the SONET line exceeds the configured Signal Degrade threshold. If APS is enabled on the port, an SD event initiates a line switch.
Configuring the PoS Module The id_string parameter is a string of up to 15 characters. By default, the parameter contains 15 NULL characters. This parameter applies only when SDH framing is configured, in which case the SDH framing cycles repetitively through a 15-character string, sending one character per frame. If the configured string contains fewer than 15 characters, it is padded to full length by NULL characters.
Configuring and Monitoring SONET Ports Configuring the Signal Label The Signal Label field occupies one byte (C2) of the Path Overhead associated with each SONET frame. It is used to indicate the type of contents carried in the Synchronous Payload Envelope (SPE). For example, 0x16 indicates scrambled PPP/HDLC, while 0xCF indicates unscrambled PPP/HDLC.
Configuring the PoS Module Displaying SONET Port Status Information To display status information for the SONET ports, use the following command: show sonet {} {detail} You can use the optional portlist parameter to narrow the range of status information the command displays; otherwise, the command displays the status information for all ports. By default, the command displays a summary of status information for the specified ports.
Configuring and Monitoring SONET Ports Table 3-3: Summary of SONET Statistics (continued) Statistic Description PLM-P event counter Number of PLM-P events SF BER event counter Number of SF BER events SD BER event counter Number of SD BER events SONET Events The PoS module can detect and report a variety of error and alarm conditions, some of which also trigger actions on the SONET link. Table 3-4 describes these events and their associated actions. Syslog messages are output for these events.
Configuring the PoS Module Table 3-4: SONET Events (continued) Event Description Alarm Indication Signal—Path (AIS-P) The Path Alarm Indication Signal is sent by the upstream LTE to inform the PTE that a LOS, LOF, AIS-L, or LOP defect has been detected. Extreme's SONET module never sends AIS-P. AIS-P was formerly known as Path Far End Receive Failure (FERF). Related SONET Overhead: H1,H2,H3 = 0 when indicating AIS-P. SONET Action: Send RDI-P upon receiving AIS-P.
Configuring and Monitoring SONET Ports Table 3-4: SONET Events (continued) Event Description Automatic Protection Switching (APS) An APS event occurs when the value of K1 or K2 changes. This event is an input to the APS state machine, which is responsible for handling the event and outputting the appropriate syslog message. The LOS, LOF, AIS-L, SF BER, and SD BER events are also input to the APS state machine.
Configuring the PoS Module Configuring and Monitoring PPP Functions In addition to the ExtremeWare commands for configuring slot and port behavior that are described in the ExtremeWare Software User Guide, this section describes the commands you use to configure PPP attributes for PoS module ports.
Configuring and Monitoring PPP Functions • Challenge Handshake Authentication Protocol (CHAP) • Password Authentication Protocol (PAP) • IP Control Protocol (IPCP) • Bridging Control Protocol (BCP) • MultiProtocol Label Switching Control Protocol (MPLSCP) • Extreme Discovery Protocol Control Protocol (EDPCP) Link Control Protocol. The Link Control Protocol (LCP) establishes a logical connection with the peer LCP entity through an exchange of configuration packets.
Configuring the PoS Module enabled on a PoS port, all data forwarded over the SONET link must be routed by the BlackDiamond 6800 series switch, as illustrated in Figure 3-6. 1 2 3 4 A B 5 6 7 8 IP Router 192.168.9.1 192.168.10.1 VLAN a Ethernet port 1 Ethernet port n 192.168.11.
Configuring and Monitoring PPP Functions 1 2 3 4 A B 5 6 7 8 IP Router 192.168.9.1 192.168.10.1 VLAN x Ethernet port 1 PPP-BCP PoS port 1 VLAN y PPP-BCP PoS port 3 PPP-BCP PoS port n PoS_022 Figure 3-7: View of logical connectivity to PoS ports with BCP enabled As Figure 3-7 shows, PoS ports 1 and 3 are bridged together along with Ethernet port 1 to form VLAN x, PoS port 3 belongs to both VLAN x and VLAN y, and routed connectivity exists between VLAN x and VLAN y.
Configuring the PoS Module MPLSCP is not explicitly configured on a PoS port. Rather, MPLSCP is automatically enabled on a PoS port when the port is configured for IPCP, and MPLS is enabled on the VLAN that the PoS port is a member of. When MPLSCP is enabled on a PoS port, the port will transport IP and MPLS labeled packets, and the port must be a member of one and only one VLAN. Furthermore, no other ports may be members of this VLAN, and IP routing is the only protocol supported on the VLAN.
Configuring and Monitoring PPP Functions Table 3-5: PPP Commands (continued) Command Description config ppp user {encrypted} {} ports Configures the user name and password that the specified PPP ports use in the event the PPP peer requests authentication. show ppp {} {detail} Displays status information for PPP ports. unconfig ppp ports Resets the PPP configuration parameters for the specified ports to their default values.
Configuring the PoS Module config ppp pos scrambling [on | off] ports Choose either on or off. Scrambling is enabled by default. RFC 2615 recommends that the SONET payload be scrambled. The option of disabling scrambling is provided for backward compatibility with an earlier PoS standard. Scrambling was introduced in RFC 2615 to alleviate potential security problems where malicious users might intentionally generate packets with bit patterns that create SONET synchronization problems.
Configuring and Monitoring PPP Functions The following example enables link maintenance on port 1 of a PoS module in slot 8 and sets seconds to 3 and consecutive misses to 10. config ppp echo 3 10 ports 8:1 Configuring PPP Link Quality Monitoring The Link Control Protocol (LCP) establishes a logical connection with the peer LCP entity through an exchange of configuration packets. Data traffic cannot flow over the SONET link until LCP has successfully established this connection.
Configuring the PoS Module The following example enables the LQM protocol on port 1 of a PoS module in slot 3 and sets required_percent to 95. Because no value is specified for the optional seconds parameter, the command uses the default of 30 seconds. config ppp quality 95 ports 3:1 Configuring PPP Authentication The Extreme Networks implementation of PPP uses the Challenge Handshake Authentication Protocol (CHAP) and the Password Authentication Protocol (PAP) to authenticate peer network elements.
Configuring and Monitoring PPP Functions To configure the name and password for a specified PPP port, use the following command: config ppp user {encrypted} {} ports The name and password parameters can contain a maximum of 32 alphanumeric characters each. As an option, you can use double quotation characters as delimiters to enclose the name and password parameters.
Configuring the PoS Module If you do not specify a password string in this command, the command prompts you to enter the password two times: the first time to set the string; the second time to confirm it. You should not attempt to use the encrypted keyword. It is used by the switch when generating an ASCII configuration.
Configuring and Monitoring PPP Functions Configuring the Network Control Protocol The Network Control Protocol is configured on a per-port basis, meaning that different ports on the same module can be running either the Bridging Control Protocol (BCP) or the IP Control Protocol (IPCP)—both protocols cannot be configured at the same time on any port. Generally, when IPCP is configured on a port, that port must be a member of a single VLAN.
Configuring the PoS Module When used with IPCP, the optional peer-ipaddress keyword and parameter value provides a way to configure the IP address of the peer router. This capability is useful with peer routers that do not advertise their IP address through the IPCP IP-Address configuration option. If the peer router does advertise an IP address through IPCP, the configured value for peer-ipaddress is ignored.
Configuring and Monitoring PPP Functions 5 Configure MPLS on the VLAN using the config mpls add vlan [ | all] command. The following command example creates a VLAN named vlan1 and configures MPLSCP on PoS port 8:1 on VLAN vlan1: create config config config config config vlan vlan vlan ppp ppp mpls vlan1 vlan1 add ports 8:1 vlan1 ipaddress 192.168.100.1 bcp off ports 8:1 ipcp on ports 8:1 add vlan vlan1 For more information about MPLS and configuring MPLS, see the MPLS Installation and User Guide.
Configuring the PoS Module Displaying PPP Information To display status information for PPP ports, use the following command: show ppp {} {detail} If you enter the show ppp command without an argument or keyword, the command displays status information for all PPP ports. Use the optional portlist parameter to display status information for one or more specific ports. By default, the command displays a summary of status information for the specified PPP port.
Configuring and Monitoring PPP Functions • Detailed LQM status: — Statistics from the most recent Link Quality Report (LQR) — Time since the most recent LQR — LQR packet counters — Number of link-down events due to LQM Resetting PPP Configuration Parameter Values To reset the PPP configuration parameters for the specified port to their default values, use the following command: unconfig ppp ports Packet Over SONET Module Installation and User Guide 3-37
Configuring the PoS Module Configuring VLAN-Related Attributes The ExtremeWare software and the Extreme Networks switch architecture provide a range of Virtual Local Area Network (VLAN) features, which are described in detail in the ExtremeWare Software User Guide. This section describes how these features are supported on the PoS module. This section assumes some familiarity with the Extreme Networks implementation of VLAN features as described in the ExtremeWare Software User Guide.
Configuring VLAN-Related Attributes The restrictions are as follows: • A PoS port cannot be added to a VLAN if the VLAN is a protocol-based VLAN. • A VLAN cannot be configured to be a protocol-based VLAN if the VLAN contains a PoS port. • A MAC address VLAN cannot be enabled on a PoS port. The config vlan protocol any command is supported, because it can be used to configure the default VLAN for PoS ports.
Configuring the PoS Module Configuring VLAN Tag Mapping Tables The config dot1q tagmapping command provides support for VLAN ID (VID) mapping tables. Each PoS port supports two VID tables: one table is used in the ingress direction; the other is used in the egress direction. These tables make it possible to map an input VID to an output VID, which can be useful in reconciling policy differences at the boundary between the customer and the service provider.
Configuring VLAN-Related Attributes Configuring VLAN Tag Nesting Attributes The config dot1q tagnesting command provides support for 802.1Q tags by allowing a tag push or pop attribute to be associated with a VLAN ID. The push attribute indicates that a new tag is to be added to the frame, while the pop attribute indicates that the top-level tag is to be removed from the frame. The command also gives you the option to preserve the 802.
Configuring the PoS Module priority, which is an integer in the range from 0 to 7. To preserve the 802.1p priority, do not enter the priority keyword and value when using this command. Default behavior is that tag nesting is disabled (off) for all VLAN IDs. Tag push operations apply to egress frames only when the port is configured to transmit tagged frames for the associated VLAN. Tag nesting operations apply only to ingress frames that contain a VLAN tag.
Configuring QoS Functions Configuring QoS Functions The ExtremeWare software and the Extreme Networks switch architecture provide a number of Quality of Service (QoS) functions, which are described in detail in the ExtremeWare Software User Guide. This section describes how these QoS functions, such as Differentiated Services (DiffServ) and Random Early Detection (RED) are supported on the PoS module.
Configuring the PoS Module Table 3-7: QoS-Related Commands (continued) Command Description config red [drop-probability | low-drop-probability | high-drop-probability] {ports } Configures the RED drop probability for a specified port. config red min-threshold ports Configures the minimum queue length threshold for RED operation on the specified PoS ports.
Configuring QoS Functions To configure the scheduling parameters for a specified QoS profile, use the following command: config qosprofile {minbw } {maxbw } {priority } {minbuf } {maxbuf } {} {egress | ingress} The optional egress and ingress keywords apply only to PoS ports.
Configuring the PoS Module Classification and Replacement Policies This section deals primarily with classification operations performed by IPCP or BCP configured PoS ports. Most of the existing ingress classification functions are supported for IPCP or BCP configured PoS ports. Functions such as access list and destination MAC address QoS policies are supported, as is the enable diffserv replacement command. Egress frames are always assigned to a QoS profile based on their 802.1p priority.
Configuring QoS Functions If you enable diffserv examination on a PoS port, then ingress IP frames are assigned to a QoS profile based on the DiffServ code point (regardless of whether you enabled either BCP or IPCP on the port). The existing config diffserv examination code-point command maps DiffServ code points to QoS profiles. This command has been enhanced for use with PoS ports. The syntax and description of the enhanced config diffserv examination code-point command are given below.
Configuring the PoS Module DiffServ Classification When a packet arrives at the switch on an ingress port, the switch examines the first six of eight TOS bits, called the code point. The switch can assign the QoS profile used to subsequently transmit the packet based on the code point. The QoS profile controls a hardware queue used when transmitting the packet out of the switch, and determines the forwarding characteristics of a particular code point.
Configuring QoS Functions The optional low-drop-probability and high-drop-probability keywords apply only to PoS ports. If you do not enter either of these keywords in the command, the command uses low-drop-probability as the default. The low-drop-probability and high-drop-probability keywords are useful in conjunction with the Weighted RED (WRED) implementation provided by PoS ports.
Configuring the PoS Module where: input_codepoint Specifies one of the 64 possible DiffServ code point values as the input code point. output_codepoint Specifies one of the 64 possible DiffServ code point values as the output code point. egress Applies the DSCP mapping to the egress direction. no-congestion Applies the DSCP mapping to the egress mapping table for the non-congested state. congestion Applies the DSCP mapping to the egress mapping table for the congested state.
Configuring QoS Functions config diffserv replacement priority code_point ports [ | all] By doing so, the hardware queue used to transmit a packet determines the DiffServ value replaced in the IP packet. To verify the DiffServ configuration, use the command: show ports info detail Enhanced RED Support Random Early Detection (RED) is a congestion avoidance mechanism.
Configuring the PoS Module The drop probability is specified as a percentage, where the percent parameter is an integer in the range from 1 to 100. Weighted RED (WRED) functionality is supported through two different drop probabilities: a low-drop-probability and a high-drop-probability. The DiffServ code points of IP packets indicate whether the packet should be dropped with low probability or high probability, and the appropriate percentage is then applied if WRED is active.
Configuring QoS Functions A. RED Operation on SONET Ports 100 Packet drop probability Configured drop-probability 0 Minimum threshold Average queue length Maximum threshold B.
Configuring the PoS Module Enabling and Disabling RED Ports The existing ExtremeWare commands to enable and disable RED ports have been enhanced to provide RED configuration attributes for the PoS modules. Because the PoS modules support eight egress queues per port, the commands were enhanced to allow the user a way to enable RED selectively on an individual port and queue basis. By default, RED is disabled.
Configuring QoS Functions By default, the minimum threshold for SONET ports is 10%, or 100 buffers; thus, the default maximum threshold is 300 buffers. You can use the show ports info detail command to display the settings of the minimum and maximum thresholds, displayed in terms of the number of buffers. Use the ports keyword to configure the threshold parameter on specific SONET ports.
Configuring the PoS Module Table 3-9: Assured Forwarding Classes and Three-Level Drop Precedence Drop-Precedence Level AF1 AF2 AF3 AF4 Low drop precedence (AF11) 001010 (AF21) 010010 (AF31) 011010 (AF41) 100010 Medium drop precedence (AF12) 001100 (AF22) 010100 (AF32) 011100 (AF42) 100100 High drop precedence (AF13) 001110 (AF23) 010110 (AF33) 011110 (AF43) 100110 Table 3-10: Assured Forwarding Classes and Two-Level Drop Precedence Drop-Precedence Level AF1 AF2 AF3 AF4 Low drop pre
Configuring QoS Functions The DSCPs associated with a PHB are assigned to the appropriate QoS profile using the config diffserv examination code-point command. For example, the following command sets up the mapping for the EF PHB: config diffserv examination code-point 46 qosprofile qp8 ports 2:1-2:2 Additional configuration steps for SONET ports in this example are as follows: • Enable RED for all PHBs except the EF PHB.
Configuring the PoS Module config diffserv examination code-point 14 qosprofile qp4 ports 2:1-2:2 high-drop-probability For example, for AF2 (qp5): config diffserv examination code-point 18 qosprofile qp5 ports 2:1-2:2 low-drop-probability config diffserv examination code-point 20 qosprofile qp5 ports 2:1-2:2 high-drop-probability config diffserv examination code-point 22 qosprofile qp5 ports 2:1-2:2 high-drop-probability For example, for AF3 (qp6): config diffserv examination code-point 26 qosprofile qp
Configuring QoS Functions Displaying RED Configuration Information for PoS Module Ports While the syntax of the existing show ports info detail command has not changed, the output of the command now displays the RED and DiffServ configuration parameters associated with PoS module ports.
Configuring the PoS Module Configuring and Monitoring Flow Statistics Each PoS port can maintain and export traffic statistics for the flows that traverse the associated SONET link. A flow is defined as a unidirectional sequence of packets between a particular source device and destination device that share the same protocol and transport-layer information.
Configuring and Monitoring Flow Statistics Table 3-12: NetFlow Version 1 Record Format (continued) Field Name Octets Field Description dPkts 4 Number of packets sent in this flow dOctets 4 Number of octets sent in this flow First 4 SysUptime when flow record was created Last 4 SysUptime at most-recent, or last packet of flow srcport 2 Source port number, valid only for TCP and UDP flows dstport 2 Destination port number, valid only for TCP and UDP flows pad 2 Unused field prot 1 N
Configuring the PoS Module Table 3-13: Format of NetFlow Version 1 Export Datagram Header Field Name Octets Field Description version 2 Header version=1. count 2 Number of flow records in datagram. SysUptime 4 Current time in milliseconds since the switch booted. unix_secs 4 Current count of seconds since 0000 UTC 1970. unix_nsecs 4 Current count of residual nanoseconds since 0000 UTV 1970.
Configuring and Monitoring Flow Statistics Accounting/ billing Profiling User-specific applications Network planning Centralized collector-server Summarized data Flow-collector device Flow-collector device UDP UDP NetFlow NetFlow NetFlow NetFlow Black Diamond Black Diamond Black Diamond Black Diamond PoS_024 Figure 3-10: NetFlow Collection Architecture Example Collection Port and Filtering Options By default, each PoS port maintains statistics for all the flows traversing the SONET link i
Configuring the PoS Module components of a forwarded flow with the associated masks from the first filter. Statistics are maintained if the results of the AND operations match the configured filter values for all fields of the five flow components. If there is not a match on all fields of the five components, then the operation is repeated for the second filter, and so on. If there is no match for any of the filters, then statistics are not maintained for the flow.
Configuring and Monitoring Flow Statistics Commands for Configuring and Monitoring Flow Statistics Table 3-14 is an alphabetical list of the ExtremeWare flow statistics commands that support the PoS module. Each command is described in detail in the sections that follow. Table 3-14: Flow Statistics Commands Command Description config flowstats export {} [add | delete] [ | ] Configures the flow-collector devices to which NetFlow datagrams are exported.
Configuring the PoS Module Enabling and Disabling Flow Statistics To enable the flow statistics function on the specified SONET port, use the following command: enable flowstats ports The flow statistics function is disabled by default. Flow statistics are collected only on SONET ports that are configured to use the IP Control Protocol (IPCP). No flow statistics are collected on ports that are configured to use the Bridging Control Protocol (BCP).
Configuring and Monitoring Flow Statistics To configure the export groups and flow-collector devices to which NetFlow datagrams are exported, use the following command: config flowstats export {} [add | delete] [ | ] The optional group# parameter is an integer in the range from 1 through 32 that identifies the specific group for which the destination is being configured. If you do not specify a value for the group# parameter, the parameter value defaults to 1.
Configuring the PoS Module Configuring Flow Record Timeout Flow records are exported on an age basis: All flow records are examined at least once every 30 minutes. If the age of the flow record is greater than the configured timeout, the record is exported. If the flow is still active, a new flow record will be created when the next packet arrives.
Configuring and Monitoring Flow Statistics export To specify a particular export distribution group on a per-filter basis, use the optional export keyword with a group number value to identify the set of flow collector devices to which records for flows matching the filter are to be exported. If you do not specify a value for group#, the value defaults to 1.
Configuring the PoS Module The following command example configures a filter to collect statistics on ingress flows destined for 192.168.1.1 from the 192.169.0.0/16 subnet with a destination port of 80 using protocol 6. config flowstats filter 1 export 1 ports all ingress dest-ip 192.168.1.1/FFFFFFFF source-ip 192.169.0.0/FFFF0000 dest-port 80/FFFF source-port 0/0 protocol 6/FF Likewise, the following command example configures a filter to collect statistics on egress traffic from the 192.168.0.
Configuring and Monitoring Flow Statistics Enabling and Disabling a Flow Record Filter To enable a specified flow record filter for the specified SONET port, use the following command: enable flowstats filter ports [ingress | egress] By default, filter #1 is enabled on all SONET ports for both ingress and egress flows, and all remaining filters are disabled.
Configuring the PoS Module Enabling and Disabling Flow Statistics Ping-Check To enable the flow statistics ping-check function for a specified group of collector devices, use the following command: enable flowstats ping-check If you do not specify a value for the group# parameter, the ping-check function is enabled for all collector groups. The ping-check function is enabled by default.
Configuring and Monitoring Flow Statistics The following command example resets the flow statistics configuration parameters for port 1 of the PoS module installed in slot 8 of the BlackDiamond switch to their default values.
Configuring the PoS Module The detailed status display for an export group includes the summary information, plus the following management information: • Counts of the flow records that have been exported to each flow collector destination • Counts of the number of times each flow collector destination has been taken out of service due to health-check (ping check) failures MIB Support for Flow Statistics Because there are no standard MIBs defined for managing the NetFlow function, Extreme Networks has def
Configuring and Monitoring APS Functions Configuring and Monitoring APS Functions Automatic Protection Switching, or APS, is a resiliency feature specified in the SONET standards. Of the different modes of operation defined in the APS specifications, the BlackDiamond 6800 series switch supports the Linear 1+1 APS architecture to protect tributary SONET lines connecting switches to Add-Drop Multiplexers (ADMs).
Configuring the PoS Module the interface. Consequently, the BlackDiamond 6800 series switch supports bidirectional switching, but not unidirectional switching.
Configuring and Monitoring APS Functions Conversely, in nonrevertive mode, when traffic is active on the protection line and the working line becomes operational, traffic will remain on the protection line (until either manual intervention or a failure on the protection line forces a switch back to the working line).
Configuring the PoS Module Virtual router BlackDiamond 1 1 2 3 4 A B 5 6 7 8 192.168.10.1 Working line Ethernet ADM SONET ring PoS device BlackDiamond 2 1 2 3 4 A B 5 6 7 8 Protection line 192.168.10.
Configuring and Monitoring APS Functions Virtual APS router PoS 192.168.10.1 Neighbor PPP router SONET 192.168.10.2 PoS PoS_014 Figure 3-14: Logical PPP connectivity to virtual APS router Another important characteristic of the virtual APS router configuration shown in Figure 3-13 is the Ethernet link between BlackDiamond #1 and BlackDiamond #2. This Ethernet link provides an out-of-band communications channel that provides a way for the two switches to synchronize their use of the SONET interfaces.
Configuring the PoS Module out-of-band Ethernet connection. All APS-related Ethernet communications between the working router and the protection router are via UDP. Upon receiving the message, the protection router invokes the APS protocol to request that the ADM switch to the protection line. The APS protocol is carried in the K1 and K2 bytes of the SONET overhead. The format of the K1 and K2 bytes is illustrated in Figure 3-15.
Configuring and Monitoring APS Functions Based on the K1 and K2 definitions, Table 3-15 shows the detailed APS protocol exchanges for switching from the working line to the protection line. The example assumes the switch occurs because a Signal Degrade condition is detected on the working line. All APS protocol exchanges occur on the protection line, between the protection router and the ADM.
Configuring the PoS Module APS Benefits In this section, we examine the benefits provided by APS. A typical redundant switch configuration is illustrated in Figure 3-16. In this scheme, both BlackDiamond switches have two SONET interfaces that are connected to different ADMs. In this configuration, no switch, PoS interface, SONET line, or ADM represents a single point-of-failure. Compare this with the APS configuration depicted in Figure 3-17. BlackDiamond 1 1 2 3 4 A B 5 6 7 8 192.168.10.1 192.
Configuring and Monitoring APS Functions Virtual APS router BlackDiamond 1 1 2 3 4 A B 5 6 7 8 192.168.10.1 Working line Group 1 ADM 1 192.168.20.1 Protection line Group 1 Ethernet BlackDiamond 2 1 2 3 4 A B 5 6 7 Protection line Group 2 8 192.168.10.1 ADM 2 192.168.20.
Configuring the PoS Module Figure 3-18 shows an APS configuration that provides faster network recovery from SONET line failures or degradations. Recovery is faster in this case because no routing topology updates are needed. Recovery is isolated to the switch and ADM pair connected to the failed line, and consists of performing an APS line switch operation.
Configuring and Monitoring APS Functions As mentioned earlier, APS can also be applied to the interconnection of bridges. Figure 3-19 illustrates a configuration where two PoS ports are members of the same VLAN. Assume that, in this example, both PoS ports are configured to run BCP on the common VLAN and bridge traffic for the VLAN across the SONET link.
Configuring the PoS Module Commands for Configuring and Monitoring APS Table 3-16 lists the ExtremeWare APS commands that support the PoS module. Each command is described in detail in the sections that follow. Table 3-16: APS Commands Command Description config aps [nonrevert | revert ] Configures APS operation in either nonrevertive or revertive switching mode. config aps add [working | protection ] Adds a SONET port to an APS group.
Configuring and Monitoring APS Functions Enabling and Disabling APS To enable the APS function for the entire switch, use the following command: enable aps To disable the APS function for the entire switch, use the following command: disable aps Creating and Deleting an APS Group An APS group includes one working line and one protection line. The working line and protection line can reside on the same BlackDiamond switch or on two different BlackDiamond switches.
Configuring the PoS Module Adding a Port to an APS Group To add a SONET port to an APS group, use the following command: config aps add [working | protection ] The group# parameter is an integer in the range from 1 to 65535 that identifies the APS group to which the specified port is to be added. The port parameter identifies the SONET port that is to be added to the APS group. You must also specify whether the port is the APS working or protection line.
Configuring and Monitoring APS Functions Deleting a Port from an APS Group To delete a SONET port from an APS group, use the following command: config aps delete The group# parameter is an integer in the range from 1 to 65535 that identifies the APS group from which the specified port is to be deleted. The port parameter identifies the SONET port that is to be deleted from the APS group.
Configuring the PoS Module Configuring Nonrevertive or Revertive Mode You can configure the APS action that should be taken when traffic is active on the protection line and the working line becomes operational. The default switching mode is nonrevertive switching, which means traffic remains on the protection line until either manual intervention or a failure on the protection line forces a switch back to the working line.
Configuring and Monitoring APS Functions Configuring APS Timers To set the values of the timers used in the APS hello protocol that is exchanged between the working and protection switches for an APS group, use the following command: config aps timers The group# parameter is an integer in the range from 1 to 65535 that identifies the APS group to which this configuration command applies.
Configuring the PoS Module Configuring APS Lockout You can specify that an APS group operates in lockout mode, which means switches from the working line to the protection line are prohibited until you turn off lockout mode for that APS group. You should use this command when you want to prevent a switchover to the protection line, such as when the protection line is being reprovisioned, repaired, or debugged.
Configuring and Monitoring APS Functions The working keyword forces the specified APS group to use the working line as the active line. The protection keyword forces the specified APS group to use the protection line as the active line. A forced switch is a high priority request.
Configuring the PoS Module A manual switch is a lower priority request than a forced switch. The following events can override a manual switch: • A config aps manual off command • A config aps force working or a config aps force protection command • A config aps lockout on command • A detected Signal Fail or Signal Degrade line condition This command applies only to SONET ports performing the protection line function. Also, the settings from this command are not preserved when the switch reboots.
Configuring and Monitoring APS Functions Displaying APS Group Status Information To display APS group status information, use the following command: show aps {} {detail} The optional group# parameter is an integer in the range from 1 to 65535 that identifies a particular APS group for which status is to be shown. If you enter the show aps command without an argument or keyword, the command displays a summary of status information for all configured APS groups.
Configuring the PoS Module Detailed management counters reported for each protection-line port include: • Automatic line switches initiated by the working-line switch, by the protection-line switch, and by the ADM • Line switches initiated due to external commands, such as through either the config aps force command or the config aps manual command) • Line switches completed successfully • Hello Protocol failures (this count is included as a component of the counter for automatic line swi
Configuring Port Tunneling Configuring Port Tunneling Port tunneling can be used to encapsulate and transport the raw High-Level Data Link Control (HDLC) encapsulated byte stream from one PoS port to another PoS port across an MPLS network. This allows service providers to tunnel different types of SONET HDLC streams across a non-SONET backbone like Ethernet. The initial implementation of port tunneling requires an MPLS backbone network.
Configuring the PoS Module BlackDiamond 1 10.1.1.1 1 Customer switch 1 2 3 4 A B 5 6 7 8 MPLS over Ethernet BlackDiamond 2 10.1.1.2 1 2 3 4 SONET A B 5 6 7 8 SONET Customer switch 2 HDLC tunnel PPP payload PoS_029 Figure 3-20: Port tunneling via a PPP link When you configure a PoS port for HDLC tunneling, make sure PPP is not configured and BCP and IPCP are off.
Configuring Port Tunneling config config create config config ppp ipcp off port 1:4 ppp bcp off port 1:4 vlan customerx vlan customerx add port 1:4 ports 1:4 tunnel hdlc mpls The following configuration commands apply to the PoS module installed in slot 8 of BlackDiamond switch 2, as shown in Figure 3-20. config config create config config ppp ipcp off port 8:4 ppp bcp off port 8:4 vlan customerx vlan customerx add port 8:4 ports 8:4 tunnel hdlc mpls The PoS port should be the only port in the VLAN.
Configuring the PoS Module Configuring the MPLS tls-Tunnel The following configuration commands create an MPLS tls-tunnel between BlackDiamond switch 1 and BlackDiamond switch 2, as shown in Figure 3-20. config mpls add vlan mplsCloud config mpls add tls-tunnel BD2 10.1.1.2 customerX tls-labels 8F100 8F200 enable mpls The following configuration commands create an MPLS tls-tunnel between BlackDiamond switch 2 and BlackDiamond switch 1, as shown in Figure 3-20.
Additional PoS Module Support Topics Additional PoS Module Support Topics This section describes additional command and configuration information related to the use of the PoS modules.
Configuring the PoS Module Table 3-17: Changes to General Switch Commands (continued) Command Description of Change reboot {time
Additional PoS Module Support Topics Table 3-18: Changes to Port Commands Command Description of Change disable jumbo-frame ports [ | all] Augmented implementation: This command applies to PoS ports when disabling jumbo-frame support changes the negotiated maximum receive unit (MRU) size. disable ports Augmented implementation: For PoS modules, this command brings down the PPP link on the specified port, and changes the port status LED to blinking green.
Configuring the PoS Module Table 3-18: Changes to Port Commands (continued) Command Description of Change show ports {} txerrors Augmented implementation: Only a subset of the statistics displayed by this command are applicable to PoS ports. The fields that do not apply to PoS ports are displayed with values of all zeroes.
Additional PoS Module Support Topics Consider these factors when configuring jumbo frame support on a PoS port: • Because the jumbo frame MTU setting affects the PPP MRU setting of the PoS port and the peer, changing the jumbo frame MTU setting can have the following results: — Temporary disruption of the logical connection because the Link Control Protocol might need to terminate the logical connection and then re-establish it with larger MRU sizes.
Configuring the PoS Module Configuring Access List Attributes For more information on the ExtremeWare access list commands, see the ExtremeWare Software User Guide. On the OC-3 PoS module, the access list functions apply to port pairs, where ports 1 and 2 are a pair, and ports 3 and 4 are a pair. This pairing scheme means that the ports in a given pair share the same access lists: ports 1 and 2 share the same lists, while ports 3 and 4 share their access lists.
A ExtremeWare Command Compatibility Information Related to the PoS Module This appendix summarizes the ExtremeWare command changes and additions to support for the PoS module, and includes information on the following topics: • New commands added to support the PoS module on page A-1 • Commands changed to support the PoS module on page A-5 • Commands not supported by the PoS module on page A-8 New Commands New commands have been added to ExtremeWare to support the following functions: • SONET • PPP • MPLS
New ExtremeWare Commands Table A-1 lists the new ExtremeWare commands that have been added to support the PoS module. For more information on these commands, see Chapter 3. Table A-1: New ExtremeWare Commands Command Description config aps [nonrevert | revert ] Configures APS operation in either nonrevertive or revertive switching mode. config aps add [working | protection ] Adds a SONET port to an APS group.
New Commands Table A-1: New ExtremeWare Commands (continued) Command Description config flowstats filter {aggregation} {export } ports [ingress | egress] Configures a flow record filter for the specified SONET ports. config flowstats source ipaddress Configures the IP address that is to be used as the source IP address for NetFlow datagrams to be exported.
Table A-1: New ExtremeWare Commands (continued) Command Description config sonet threshold signal degrade ports Configures the Signal Degrade threshold for the specified SONET ports. config sonet threshold signal fail Configures the Signal Failure threshold for the ports specified SONET ports. config sonet trace path ports Configures the Path Trace Identifier string for the specified SONET ports.
Changed Commands Table A-1: New ExtremeWare Commands (continued) Command Description unconfig flowstats ports Resets the flow statistics configuration parameters for a specified SONET port to their default values. unconfig ppp ports Resets the PPP configuration parameters for the specified ports to their default values. unconfig sonet ports Resets the configuration parameters of the specified SONET port to their default values.
Table A-2: Summary of Commands with Enhanced Syntax (continued) Command Description config red [drop-probability | low-drop-probability | high-drop-probability] {ports } Added keywords for low-drop-probability and high-drop-probability; added optional keyword and argument to specify ports.
Changed Commands Table A-3: Summary of Commands with Augmented Implementation (continued) Command Description disable ports For PoS modules, this command brings down the PPP link on the specified port, and changes the port status LED to blinking green. enable jumbo-frame ports [ | all] This command applies to PoS ports when enabling jumbo-frame support changes the negotiated maximum receive unit (MRU) size.
Commands and Functions Not Supported None of the ExtremeWare commands associated with the following functions are supported for PoS ports: • Extreme Standby Routing Protocol (ESRP) • Dynamic Link Context System (DLCS) • Intra-Subnet QoS™ (ISQ) • Remote Monitoring (RMON) Table A-4 is an alphabetical list of the existing ExtremeWare commands that are not supported for the PoS module.
Commands and Functions Not Supported Table A-4: Summary of Commands Not Supported for PoS Ports (continued) Command Description enable isq Not supported when a PoS port is a member of the VLAN specified as . enable mac-vlan mac-group [any | group_number] ports PoS I/O module ports do not support Protocol-Based VLANs or MAC Address VLANs. enable mirroring to Port mirroring is not supported on PoS module ports.
A-10 Packet Over SONET Module Installation and User Guide
B Supported MIBs and Standards This appendix lists the software standards and management information bases (MIBs) supported in relation to the PoS modules. For a broader list of the software standards supported by ExtremeWare as a whole, see the “Supported Standards” appendix in the ExtremeWare Software User Guide.
SONET/SDH Support This section lists the Synchronous Optical Network/Synchronous Digital Hierarchy (SONET/SDH) related standards and SNMP MIBs that are supported for the PoS modules. Standards Supported for SONET/SDH The Extreme Networks SONET/SDH implementation complies with the following standards: • GR-253-CORE, Synchronous Optical Network (SONET) Transport Systems: Common Generic Criteria, Bellcore, Issue 2, Revision 2, January 1999. • ANSI T1.105.
QoS and DiffServ Support • RFC 2615: PPP over SONET/SDH • RFC 1334: PPP Authentication Protocols (specifies PAP) • RFC 1994: PPP Challenge Handshake Authentication Protocol (CHAP) • RFC 1989: PPP Link Quality Monitoring • RFC 1332: The PPP Internet Protocol Control Protocol (IPCP) • RFC 2878: The PPP Bridging Control Protocol (BCP) • RFC 1191: Path MTU Discovery • RFC 3032: MPLS Label Stack Encoding MIBs Supported for PPP The interface counters in MIB-II (RFC 1213) are supported for PPP.
recommendations published in RFC 2309, Recommendations on Queue Management and Congestion Avoidance in the Internet.
Automatic Protection Switching Support Standards Supported for APS In addition to the MIB support described above, the Extreme Networks APS implementation complies with the following standards: • GR-253-CORE, Synchronous Optical Network (SONET) Transport Systems: Common Generic Criteria, Bellcore, Issue 2, Revision 2, January 1999. • ANSI T1.105.01-1998, Synchronous Optical Networks (SONET)—Automatic Protection Switching, American National Standards Institute, 1998. • ITU-T G.
B-6 Packet Over SONET Module Installation and User Guide
Index Numerics 802.1p command support 802.
E C cables multimode 2-3 single-mode 2-3 Challenge Handshake Authentication Protocol.
verifying operation 2-10 version requirements, software and hardware 2-2 Intra-Subnet QoS. See ISQ IP Control Protocol. See IPCP IPCP basic configuration for routing 3-6 configuring 3-33 overview 1-9, 3-23 IPX 3-105 ISQ A-8 J jumbo frame support LCP MRU MTU 1-10 3-104 3-104 N NCP BCP, configuring configuring default configuration IPCP, configuring NetFlow statistics support Network Control Protocol.
PoS port tunnel, configuring 3-98 port tunneling 1-12, 3-97 Ethernet module, configuring 3-99 MPLS tls- tunnel, configuring 3-100 PoS module feature summary 1-7 GPP subsystem 1-5 hot-swapping 1-2 installing 2-7 LED indicators 1-5, 2-10, 2-12 network processors 1-5 optical interface characteristics 1-3, 2-3 physical description 1-4 troubleshooting 2-11 PPP authentication database entry, creating 3-31 authentication, configuring 3-30 BCP 1-9, 3-24 CHAP 1-9, 3-23 configuration commands (table) 3-26 configurati
statistics (table) Spanning Tree Protocol. See STP STP ExtremeWare commands support Synchronous Digital Hierarchy. See SDH Synchronous Optical Network. See SONET 3-18 3-42 3-42 T tag mapping tag nesting technology release version identifier tools for installation troubleshooting 3-40 3-41 2-2 2-5 2-11 V VLANs configuration commands (table) tag mapping tag nesting tagged VLAN 802.1p and 802.1Q functions 3-38 3-40 3-41 3-39 W Weighted RED.
vi - Index Packet Over SONET Module Installation and User Guide
Index of Commands C clear counters 3-102, A-6 config aps 3-86, 3-90, A-2 config aps add 3-86, 3-88, A-2 config aps authenticate 3-86, 3-89, A-2 config aps delete 3-86, 3-89, A-2 config aps force 3-86, 3-92, A-2 config aps lockout 3-86, 3-92, A-2 config aps manual 3-86, 3-93, A-2 config aps timers 3-86, 3-91, A-2 config diffserv dscp-mapping 3-43, 3-49, A-2 config diffserv examination code-point 3-43, 3-48, A-5 config diffserv replacement priority 3-51 config dot1p type 3-39 config dot1p_priority 3-47 confi
disable flowstats filter ports 3-65, 3-71 disable flowstats ping-check 3-72, A-4 disable flowstats ports 3-65 disable jumbo-frame A-6 disable jumbo-frame ports 3-103 disable learning ports 3-102, A-8 disable ports 3-103, A-7 disable red A-6 disable red ports 3-44, 3-54 download bootrom 3-106, A-6 download image 3-106, A-6 U unconfig aps 3-86, 3-94, A-4 unconfig diffserv dscp-mapping 3-44, A-4 unconfig diffserv dscp-mapping ports 3-50 unconfig flowstats A-5 unconfig flowstats ports 3-65, 3-72 unconfig ppp A
