Extreme Networks PoS User manual

Extreme Networks, Inc.
3585 Monroe Street
Santa Clara, California 95051
[phone]
http://www.extremenetworks.com
Packet Over SONET
Module Installation and
User Guide
Published: June 2001
Part number: 100080-00 Rev. 02

ii
©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.
ExtremeWare, ExtremeWare Vista, ExtremeWorks, ExtremeAssist, ExtremeAssist1, ExtremeAssist2,
PartnerAssist, Extreme Standby Router Protocol, ESRP, SmartTraps, Alpine, Summit, Summit1,
Summit4, Summit4/FX, Summit7i, Summit24, Summit48, Summit Virtual Chassis, SummitLink,
SummitGbX, SummitRPS, and the Extreme Networks logo are trademarks of Extreme Networks, Inc.,
which may be registered or pending registration in certain jurisdictions. The Extreme Turbodrive logo
is a service mark of Extreme Networks, which may be registered or pending registration in certain
jurisdictions. Specifications are subject to change without notice.
All other registered trademarks, trademarks, and service marks are property of their respective owners.

Contents iii
Contents
Preface
Introduction xiii
Terminology xiv
Conventions xiv
Related Publications xv
1Overview
BlackDiamond 6800 Series Switch Overview 1-1
BlackDiamond I/O Modules 1-2
About the PoS Modules 1-3
Physical Description 1-4
Feature Summary 1-7
Function Summary 1-9
Service Provider Features 1-11
2 Installing or Replacing a PoS Module
Preparing for Installation 2-1
Software and Hardware Version Requirements 2-2
Cables and Connectors 2-3
Safety Information 2-4
Tools 2-5
I/O Module Slot Locations 2-5

iv Contents
Inserting and Securing a Module 2-7
Making Network Interface Cable Connections 2-9
Verifying the Module Installation 2-10
LED Indicators 2-10
Displayed Slot Status Information 2-10
Troubleshooting 2-11
Identifying Problem Categories 2-12
Fixing Configuration Errors 2-13
Upgrading the Switch Software Image 2-14
Upgrading the PoS Module Software Image 2-14
Fixing Power-Related Problems 2-15
Fixing Link Down Problems 2-15
Identifying Conditions for Replacing an I/O Module 2-16
Removing and Replacing an I/O Module 2-16
Tools and Equipment 2-16
Removing an I/O Module 2-17
3 Configuring the PoS Module
Basic PoS Module Configuration Information 3-2
Default PoS Module Configurations 3-2
PoS Port Configuration and Default VLAN Assignments 3-3
Default Configuration: Bridging Over PoS Ports 3-3
Routing Over PoS Ports 3-6
Automatic Protection Switching 3-7
Configuring and Monitoring SONET Ports 3-12
Commands for Configuring and Monitoring SONET Ports 3-13
Configuring SONET Framing 3-13
Configuring SONET Clocking 3-14
Configuring the Signal Fail Threshold 3-14
Configuring the Signal Degrade Threshold 3-15
Configuring the Section Trace Identifier 3-15
Configuring the Path Trace Identifier 3-16
Configuring the Signal Label 3-17
Resetting SONET Configuration Parameter Values 3-17
Displaying SONET Port Status Information 3-18

Contents v
SONET Events 3-19
Configuring and Monitoring PPP Functions 3-22
PPP Background Information 3-22
Commands for Configuring and Monitoring PPP Functions 3-26
Configuring the PoS Checksum 3-27
Configuring PoS Scrambling 3-27
Configuring Link Maintenance 3-28
Configuring PPP Link Quality Monitoring 3-29
Configuring PPP Authentication 3-30
Configuring the Name and Password for the Port 3-30
Creating an Authentication Database Entry 3-31
Configuring the Network Control Protocol 3-33
Configuring the MPLS Control Protocol 3-34
Configuring the Delayed-Down-Time Interval 3-35
Displaying PPP Information 3-36
Resetting PPP Configuration Parameter Values 3-37
Configuring VLAN-Related Attributes 3-38
Summary of VLAN-Related Commands 3-38
Configuring Tagged VLAN 802.1p and 802.1Q Functions 3-39
Generic VLAN Registration Protocol Functions 3-42
Configuring Forwarding Database Attributes 3-42
Configuring Spanning Tree Attributes 3-42
Configuring QoS Functions 3-43
Summary of QoS-Related Commands 3-43
Configuring a QoS Profile 3-44
Classification and Replacement Policies 3-46
Configuring DiffServ 3-47
Enhanced RED Support 3-51
QoS Monitor 3-59
Intra-Subnet QoS 3-59
Configuring and Monitoring Flow Statistics 3-60
Flow Statistics Background Information 3-60
Collection Port and Filtering Options 3-63
Collection Architecture Scalability and Reliability 3-64
Export Criteria 3-64
Commands for Configuring and Monitoring Flow Statistics 3-65

vi Contents
MIB Support for Flow Statistics 3-74
Configuring and Monitoring APS Functions 3-75
APS Network Configuration Options 3-77
Sample Line-Switching Scenario 3-79
APS Benefits 3-82
Commands for Configuring and Monitoring APS 3-86
Enabling and Disabling APS 3-87
Creating and Deleting an APS Group 3-87
Adding a Port to an APS Group 3-88
Deleting a Port from an APS Group 3-89
Configuring APS Authentication 3-89
Configuring Nonrevertive or Revertive Mode 3-90
Configuring APS Timers 3-91
Configuring APS Lockout 3-92
Configuring Forced Switch Mode 3-92
Configuring Manual Switch Mode 3-93
Resetting APS Group Configuration Parameters 3-94
Displaying APS Group Status Information 3-95
MIB Support for APS 3-96
Configuring Port Tunneling 3-97
Configuring the PoS Port Tunnel 3-98
Configuring the Ethernet Module 3-99
Configuring the MPLS tls-Tunnel 3-100
Additional PoS Module Support Topics 3-101
Configuring General Switch Attributes 3-101
Configuring Port Attributes 3-102
Configuring IGMP Attributes 3-105
Configuring Layer 2 and 3 Switching Attributes 3-105
Configuring Access List Attributes 3-106
Changing Image and Configuration Attributes 3-106
A ExtremeWare Command Compatibility Information
Related to the PoS Module
New Commands A-1
New ExtremeWare Commands A-2
Changed Commands A-5

Contents vii
Commands and Functions Not Supported A-8
B Supported MIBs and Standards
SONET/SDH Support B-2
Standards Supported for SONET/SDH B-2
MIBs Supported for SONET/SDH B-2
PPP Support B-2
Standards Supported for PPP B-2
MIBs Supported for PPP B-3
QoS and DiffServ Support B-3
Standards Supported for DiffServ B-3
Flow Statistics Support B-4
MIBs Supported for Flow Statistics B-4
Automatic Protection Switching Support B-4
Standards Supported for APS B-5
MIBs Supported for APS B-5
Index
Index of Commands

viii Contents

Figures ix
Figures
1-1 PoS module 1-4
1-2 Front panel views of the P3cSi and P3cMi modules 1-6
1-3 Front panel views of the P12cSi and P12cMi modules 1-7
2-1 Slot locations in a BlackDiamond 6800 series chassis 2-6
2-2 Inserting and securing a PoS module 2-8
3-1 Default configuration for BCP 3-4
3-2 IPCP configuration 3-6
3-3 APS configuration, port redundancy 3-8
3-4 APS configuration, module redundancy 3-9
3-5 APS configuration for switch redundancy 3-10
3-6 View of logical connectivity to PoS ports with IPCP enabled 3-24
3-7 View of logical connectivity to PoS ports with BCP enabled 3-25
3-8 Comparisons of RED and WRED operation 3-53
3-9 Format of NetFlow export datagram 3-61
3-10 NetFlow Collection Architecture Example 3-63
3-11 Linear 1+1 APS architecture 3-75
3-12 Linear 1+1 APS architecture with two switches 3-76
3-13 Virtual APS router configuration 3-78
3-14 Logical PPP connectivity to virtual APS router 3-79
3-15 Format of SONET K1 and K2 Bytes 3-80
3-16 Typical redundant switch configuration without APS 3-82
3-17 Redundant switch configuration with APS 3-83
3-18 APS configuration providing faster recovery from
line failure 3-84
3-19 APS in bridging configuration 3-85
3-20 Port tunneling via a PPP link 3-98

xFigures

Tables xi
Tables
1Notice Icons xiv
2Text Conventions xv
2-1 PoS Module and Port LEDs 2-12
3-1 SONET Parameters and Values 3-5
3-2 SONET Port Commands 3-13
3-3 Summary of SONET Statistics 3-18
3-4 SONET Events 3-19
3-5 PPP Commands 3-26
3-6 VLAN-related Commands 3-38
3-7 QoS-Related Commands 3-43
3-8 Default Code Point-to-QoS Profile Mapping 3-48
3-9 Assured Forwarding Classes and Three-Level
Drop Precedence 3-56
3-10 Assured Forwarding Classes and Two-Level
Drop Precedence 3-56
3-11 Mapping PHBs to QoS Profiles 3-56
3-12 NetFlow Version 1 Record Format 3-60
3-13 Format of NetFlow Version 1 Export Datagram Header 3-62
3-14 Flow Statistics Commands 3-65
3-15 APS Protocol for Switch from Working Line to
Protection Line 3-81
3-16 APS Commands 3-86
3-17 Changes to General Switch Commands 3-101
3-18 Changes to Port Commands 3-103
3-19 Changes to Image Commands 3-106
A-1 New ExtremeWare Commands A-2

xii Tables
A-2 Summary of Commands with Enhanced Syntax A-5
A-3 Summary of Commands with Augmented Implementation A-6
A-4 Summary of Commands Not Supported for PoS Ports A-8

Packet Over SONET Module Installation and User Guide xiii
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. It assumes a basic working knowledge of:
•Local area networks (LANs).
•Ethernet concepts.
•Ethernet switching and bridging concepts.
•Routing concepts.
•Internet Protocol (IP) concepts.
•Routing Information Protocol (RIP) and Open Shortest Path First (OSPF).
•Simple Network Management Protocol (SNMP).
If the information in the release notes shipped with your module differs from the
information in this guide, follow the release notes.

xiv Packet Over SONET Module Installation and User Guide
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.
Unless otherwise specified, a feature requiring the “i”chipset requires the use of both
an “i”chipset-based management module, such as the MSM64i, and an “i”
chipset-based I/O module, such as the G8Xi.
Conventions
Table 1 and Table2 list conventions that are used throughout this guide.
Table 1: Notice Icons
Icon Notice Type Alerts you to...
Note Important features or instructions.
Caution Risk of personal injury, system damage, or loss of data.
Warning Risk of severe personal injury.

Packet Over SONET Module Installation and User Guide xv
Related Publications
Related Publications
The publications related to this one are:
•ExtremeWare™release notes
•ExtremeWare Software User Guide
•BlackDiamond 6800 Series Switch Hardware Installation Guide
•BlackDiamond Module Installation Note
Documentation for Extreme Networks products is available on the World Wide Web at
the following location:
http://www.extremenetworks.com/
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.”
[Key] names Key names are written with brackets, such as [Return] or [Esc].
If you must press two or more keys simultaneously, the key names
are linked with a plus sign (+). Example:
Press [Ctrl]+[Alt]+[Del].
Words in italicized type Italics emphasize a point or denote new terms at the place where
they are defined in the text.

xvi Packet Over SONET Module Installation and User Guide

Packet Over SONET Module Installation and User Guide 1-1
1Overview
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.
This chapter includes information on the following topics:
•BlackDiamond 6800 Series Switch Overview on page 1-1
•About the PoS Modules on page 1-3
BlackDiamond 6800 Series Switch Overview
The BlackDiamond 6800 series switch is a chassis-based switch designed to be placed in
the core of your network. The BlackDiamond 6800 series switch is flexible and scalable,
making it easy for you to meet the changing requirements of your network. The
combination of BlackDiamond, Alpine™, and Summit™switches delivers a consistent
end-to-end network solution that provides a nonblocking architecture, wire-speed
switching, wire-speed IP routing, and policy-based Quality of Service (QoS).

1-2 Packet Over SONET Module Installation and User Guide
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. No configuration information is stored
on the I/O modules; all configuration information is stored on the MSM64i modules.
When the BlackDiamond 6800 series switch is powered on, the ExtremeWare software
determines which slots are occupied by I/O modules, determines whether it has a
configuration for each module, and generates a default configuration for each slot that
is occupied by an I/O module that has not yet been configured. The default
configuration is the minimal set of configuration parameter settings that will allow the
I/O module and its ports to function. The default configuration for the I/O module is
not preserved unless you explicitly save the information to nonvolatile RAM (NVRAM).
You can also use ExtremeWare commands to configure the I/O module after installing it
in the BlackDiamond chassis, or you can preconfigure the parameters of a module that
has not yet been inserted into the chassis.
If you preconfigure a slot for a particular module, the preconfigured information is used
when the module is inserted. You must select a module type for the slot before you can
preconfigure the parameters. If you have preconfigured a slot for a specific module type
and then insert a different type of module, you must explicitly overwrite the existing
configuration with a new configuration, or use the ExtremeWare unconfig
slot <slot> command to clear the existing slot configuration. If you enter a new
configuration for the new module, the module uses that configuration. If you clear the
slot configuration, the new module type can use the default configuration ExtremeWare
creates.
For information on configuring I/O modules, see the ExtremeWare Software User
Guide.

Packet Over SONET Module Installation and User Guide 1-3
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.
In the second application, operators of server co-location networks can use PoS modules
in BlackDiamond 6800 series switches to create a SONET-based connection between
server co-location sites. The result is that their network is simpler to manage, and
problems can be isolated and resolved more expediently.
Extreme Networks offers the PoS module in the following configurations:
•P3cMi: four OC-3 multimode, short-reach optical interfaces
•P3cSi: four OC-3 single-mode, intermediate-reach optical interfaces
•P12cMi: two OC-12 multimode, short-reach optical interfaces
•P12cSi: two OC-12 single-mode, intermediate-reach optical interfaces
The “c” in the names of the modules indicates that the optical interfaces on
these modules operate in concatenated mode, which enables all the bandwidth
to be devoted to a single payload stream.
The P3cMi (multimode version) operates in the 1310 nanometer (nm) wavelength
window at a typical maximum cable distance of 2 kilometers (km) or 1.24 miles (mi).
The P12cMi (multimode version) also operates in the 1310 nanometer (nm) wavelength,
but at a typical maximum cable distance of 500 meters (m) or 0.31 (mi). The P3cSi and
P12cSi (single-mode versions) also operate in the 1310 nanometer (nm) wavelength
window, but at a typical maximum cable distance of 15 km or 9.32 (mi). All four
versions of the PoS module use industry-standard duplex SC optical fiber connectors.

1-4 Packet Over SONET Module Installation and User Guide
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 Figure1-1). 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.
Figure 1-1: PoS module
PoS_002
Ejector/injector
handle
Network interface ports
Two on OC-12 PoS module
Four on OC-3 PoS module
Port status LED
(one per port)
Service ports
Module status LED
General Purpose Processor (GPP)
Module diagnostics LED
Captive
retaining screw
Network processors
and heat sinks