Extreme Networks WM-4T1i User Manual

WM-4T1i Module
Installation and User
Guide

Extreme Networks, Inc.

3585 Monroe Street

Santa Clara, California 95051

[phone]

http://www.extremenetworks.com

Part number: 10 0095-00 Rev. 01

Published: June 200 1

©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.

ii

Contents

Preface

Introduction v
Conventions vi
Related Publications vii

1 Installing the WM-4T1i Module

Overview 1-1
Installing the WM-4T1i Modul e 1-2
Ports and Connectors 1-3

WM-4T1i Module LEDs 1-3

Installing the WM-4T1i Modu le Software 1-5

2 Configuring the T1 Physical Link

Overview 2-1
Configuring T1 Physical link 2-1

Alarms 2-2
Cable length 2-2
Clock Source 2-3
Facility Data Link 2-3
Framing 2-4
Inband Loopback Detection 2-4
Linecoding 2-4

WM-4T1i Installation and User Guide iii

Yellow Alarms 2-5
T1 Port Configuration Comma nds 2-5

Monitoring T1 Physical Link 2 -6

Loopback 2-6

Near-end Loopback Modes 2-7
Far-End Loopback Modes 2-8
Enabling Loopback Mode 2-10
Disabling Loopback Mode 2-10

T1 Port Monitoring Commands 2-10

3 Configuring PPP and MLPPP

Overview 3-1
Multilink PPP and M ultilink Groups 3-2
Configuring a PPP/MLPP P Link 3-3

Authentication 3-3

PPP Link Username 3-3

PPP User Accounts 3-4
Encapsulation 3-4
PPP/MLPPP Configuration Commands 3-5

Monitoring PPP/MLPPP Links 3-6
PPP/MLPPP Configuration Examples 3-6

Configuring a Bridged PPP/M LPPP Link Example 3-6
Configuring a Routed PPP/MLP PP Link Example 3-7

Index

Index of Commands

iv WM-4T1i Installation and User Guide

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 insta ll the WM-4T1i module in an
Alpine 3800 series switch from Extreme Network s and perform the initial module
configuration tasks.

This guide is intended for use by network administrators who are responsible for
installing and setting up net work equipment. It assumes a basic w orking knowledge of:

• Local area networks (LANs).

• Ethern et conc epts.

• Ethernet switching and bridging concepts.

• Routing concepts.

• Internet Protocol (IP) conce pts.

• Routing Information Protocol (RIP) and Open Shortest Path First (OSPF).

• Simple Network Management Protocol ( SNMP).

If the information in th e release notes shipped wi th your module diffe rs from the
information in this gui de, follow the release notes .

WM-4T1i Module Insta llation and U ser Guide v

Conventions

Table1 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 pe rsonal injury .

Table 2: Text C onventions

Convention Description

Screen displays This typeface indicates command syntax, or represents information

Screen displays
bold

The words “enter”
and “type”

[Key] names Key names are written with brackets, such as [Return] or [Esc].

Words in italicized type Italics emphasize a point or denote new terms at the place where

as it appears on the screen.
This typeface indicates how you would type a particular command.

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 instr uction simpl y says “type.”

If you must press two or more keys simultaneously, the key names
are linked with a plus sign (+). Example:

Press [Ctrl]+[Alt]+[Del].

they are defined in the text.

vi WM-4T1i Module Insta llation and U ser Guide

Related Publications

Related Publications

The publications related to this one are:

• ExtremeWare

• ExtremeWare Software User Guide

• Alpine 3800 Series Sw itch Hardware Installat ion Guide

• Alpine Module Installation Note

Documentation for Extreme Networks products is available on the World Wide Web at
the following location :

http://www.extremenetworks.com/

™

release n otes

WM-4T1i Module Insta llation and U ser Guide vii

viii WM-4T1i Module Insta llation and U ser Guide

1

Installing the WM-4T1i Module

This chapter covers the following to pics:

• Installing the WM-4T1i Mod ule on page 1-2

• Ports and Connectors on page 1-3

• WM-4T1i Module LEDs on page 1-3

• Installing the WM-4T1i Mod ule Software on page 1-5

Overview

The Extreme Networks WM-4T1i module is an four-port T1 module that can be
configured to use Multilink PPP to aggregate Ethernet traffic across multiple T1
physical links. The module has two 10/100 Mbps Ethernet ports.

The WM-4T1i module also has six internal loo pback ports. The Alpine 3 800 switch
modules have hardware queues associated with the output of each port for QoS (rate
shaping and priority queueing ). To implement ingress QoS, you needed to use the
hardware queues associated with a second port as a loopback port for ingress QoS

WM-4T1i Module Insta llation and U ser Guide 1-1

Installing the WM-4T1i Module

Installing the WM-4T1 i Module

All Alpine ™ 3800 series switch module cards (SMMi modules and I/O modules) are
hot-swappable. You do not need to power off the system to remove or insert a module
card.

Caution: Service to Alpine modules sh ould be performed by trai ned service
personnel only. Before installing or r emoving any compo nents of the system, o r
before carrying out a ny maintenance procedur es, read the safety inf ormation
provided in Appendix A of the Alpine Hardware Installation Guide.

Warning: You must install blank panels i n empty sl ots to ensur e adequate s ystem
cooling.

To remove and replace a module card, follow these steps:
1 Prior to removing/installing a modul e card into the Alpine 3804 or Alpine 3808

chassis, put on the ESD wrist strap that is p rovided with the chassis, and connect the
metal end to the ground receptacle located on the top-right corner of the Alpine
front panel.

2 Loosen the module card by unscrewing the screws using a #2 Phillips-head

screwdriver.

3 Rotate the ejector/injector handles to disengage the module card from the backplane.

Note: Blank panels do not have ejector/in jector handles, be cause they do not
engage the backpl ane. They are secured enti rely by the retaining screws. In
addition, the retaini ng screws are not captiv e.

4 Slide the module card out of the chassis.
5 Slide the new module card into the appropriate slot of the chassis (SMMi modules

into the orange slot, I/O mo dules into Slots 1 through 4 on th e Alpine 3804, or Slots
1 through 8 on the Alpine 3808), until it is f ully seated in the backplane.

Caution: Ensure that th e sheet metal of the modu le, and not the PCB bo ard,
engages the card cage runners.

As the module begins to seat in the cha ssis, the ejector/inj ector handles will begin to
close.

6 To secure the module in the chassi s, close the ejector/i njector handles by push ing

them toward the center of the module card, and tighten the screws using a #2
Phillips-head screwdriver.

1-2 WM-4T1i Module Installation and Us er Guide

Note: Tighten the scre ws before insertin g additional module s. If you insert
additional modules before tightening the sc rews, you might unseat modules
that you have not se cured.

Caution: You can only install I/O mo dules in the slots labe led Slot 1 through
Slot 4 on the Alpine 3804, or Slot 1 through Slot 8 on the Alpine 3808. For ceful
insertion can damage th e I/O module and the co nnector pins on the bac kplane.

Ports and Connectors

The WM-4T1i module is sho w in Figure 1-1.

Ports and Connector s

Module status

LEDs

T1 ports 10/100 Mbps ports

38_WM4T1i

Figure 1-1: WM-4T1i Module

The WM-4T1i module has four T1 ports and two 10/100 Ethernet ports. The WM-4T1i
also has six internal loo pback ports. Internal loo pback ports allow you to co nfigure
bi-directional rate-limiting without t ying up any of the external ports for ingress rate
shaping. Internal loopback ports are marked with the notation “iL” when displayed on
the command line or with ExtremeWare Vista Web access.

WM-4T1i Module LEDs

The WM-4T1i module LEDs are shown in Figure 1-1.

WM-4T1i Module Insta llation and U ser Guide 1-3

Installing the WM-4T1i Module

Figure 1-2: WM-4T1i LEDs

Table 1-1 describes the LED behavior on the WM-4T1i module.

Table 1-1: WM-4T1i Module L EDs

LED Color Indicates

Status Off No power

Amber Module seate d in chassi s
Green Module powered up

Diag Green (blinking) Power-on Self Test (POST) is running

Off Normal operation

T1 port (1-4) Amber Near-end f ault detec ted (for e xample, n o cable)

10/100 por t
(5,6)

Rapidly blink ing
amber

Slowly blinking
amber

Green Physical link present, higher-layer link established,

Alternating green
and amber

Green (blinking) Loopback testing mode
Off No link pres ent

Green Link present
Alternating green

and amber

Far-end fa ult detec ted

Physical li nk presen t, but no higher-l ayer link (port
misconfigured or disabled)

no traffic
Physical link present, higher-layer link established,

traffic present

Traffic present

1-4 WM-4T1i Module Installation and Us er Guide