Juniper Networks ERX User Manual

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E-series™ Routing Platforms

ERX™ Hardwa

Release 8.0.x

re Guide

Juniper Networks, Inc.

1194 North Mathilda Avenue

Sunnyvale, California 94089

USA

408-745-2000

www.juniper.net

Part Number: 162–01539-00, Revision A00

This product includes the Envoy SNMP Engine, developed by Epilogue Technology, an Integrated Systems Company. Copyright © 1986-1997, Epilogue Technology Corporation. All rights reserved. This program and its documentation were developed at private expense, and no part of them is in the public domain.

This product in

This product includes FreeBSD so ftware developed by the University of Ca lifornia, Berkeley, and its contributors. All of the documentation and software included in the 4.4BSD and 4.4BSD-Lite Releases is copyrighted by the Regents of the University of California. Copyright © 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994. The Regents of the University of California. All rights reserved.

3.0 by Cornell University and its collaborators. Gated is based on Kirton’s EGP, UC Berkeley’s routing daemon (routed), and DCN’s HELLO routing protocol. Development of Gated has been supported in part by the National Science Foundation. Portions of the GateD software copyright © 1988, Regents of the University of California. All rights reserved. Portions of the GateD software copyright © 1991, D. L. S. Associates.

This product i

Juniper Ne tworks, the Juniper Networks logo, NetScreen, and ScreenOS are registered trademarks of Juniper Networks, Inc. in the United States and other countries. JU NOS and JUNOSe are trademarks of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners.

Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, m o d ify, transfer, or otherwise revise this publication without notice.

Products mad owned by or li 6,429,706, 6

E-series™ Routing Platforms ERX™ Hardware Guide, Release 8.0.x

Writing: Joh Editing: Ben Illustratio Cover Design

e or sold by Juniper Networks or components thereof might be covered by one or more of the following patents that are

censed to Juniper Networks: U.S. Patent Nos. 5,473,599, 5,905,725, 5,909,440, 6,192,051, 6,333,650, 6,359,479, 6,406,312,

,459,579, 6,493,347, 6,538,518, 6,538,899, 6,552,918, 6,567,902, 6,578,186, and 6,590,785.

n Borelli, Helen Shaw

Mann

n: John Borelli

: Edmonds Design

Revision History 15 December 2006—Revision 1

The information in this document is current as of the date listed in the revision history.

SOFTWARE LIC

The terms and conditions for using this software are described in the software license contained in the acknowledgment to your purchase order or, to the extent applicable, to any reseller agreement or end-user purchase a greement executed between you and Juniper Networks. By using this software, you indicate that you understand and agree to be bound by those terms and conditions.

Generally speaking, the software license restricts the manner in which you are permitted to use the software and may contain prohibitions against certain uses. The software license may state conditions under which the license is automatically terminated. You should consult the license for further details.

For comple

ENSE

te product documentation, please see the Juniper Networks Web site at www.juniper.net/techpubs.

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READ THIS END US INSTALLING, O OR IF YOU ARE NO AGREEMENT. IF SOFTWARE, AN

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b. Custome has paid th use such So

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Table of Cont

ents

About This G

Objectives ............................................................................ xi

Audience..............................................................................xi

E-series Routers..................................................................... xii

Documentation Conventions ...................................................... xii

List of Technical Publications ......................................................xiii

Obtaining Documentation ........................................................xvii

Documentation Feedback.........................................................xvii

Requesting Support............................................................... xviii

Part 1

Chapter 1 ERX Over view

Product Overview

Overview ..............................................................................3

ERX Routers...........................................................................3

ERX-14xx Models................................................................4

ERX-7xx Models .................................................................6

ERX-310 Router ..................................................................8

ERX Modules ..........................................................................9

SRP Module..................................................................... 10

Module Details............................................................. 12

SRP Module Redundancy................................................. 13

Nonvolatile Storage ....................................................... 13

SRP I/O Module ................................................................ 13

Module Details............................................................. 13

Line Modules ................................................................... 14

Packet Classification ...................................................... 15

I/O Modules .................................................................... 15

Network Management Tools ....................................................... 16

CLI Management............................................................... 16

SNMP MIB Management ...................................................... 16

NMC-RX Device Management System ....................................... 16

Redundancy Features............................................................... 16

SRP Modules ................................................................... 16

NVS Cards.................................................................. 17

Line Modules ................................................................... 17

Power ........................................................................... 19

Fans ............................................................................. 20

uide

Table of Contents v

ERX 8.0.x Hardware Guide

Part 2

Chapter 2 Unpacking and Inspecting ERX Routers

Chapter 3 Installing ERX Routers

Initial Insta

Before You Begin.................................................................... 23

Unpacking ERX-14xx Models...................................................... 23

Unpacking ERX-7xx Models and ERX-310 Routers .............................. 24

Inspecting Router Components and Accessories................................. 25

If You Detect or Suspect Damage ................................................. 25

Contacting Juniper Networks ...................................................... 25

The Next Step ....................................................................... 25

Before You Begin.................................................................... 27

Freestanding Installation ........................................................... 27

Rack-Mounted Installation ......................................................... 28

Installation Guidelines ......................................................... 28

Safety Guidelines............................................................... 30

Preparing the Equipment Racks .............................................. 32

Installing the Router ........................................................... 32

The Next Step ....................................................................... 33

llation

Chapter 4 Installing Modules

Overview ............................................................................ 35

Slot Groups ..................................................................... 36

Slot Groups for the ERX-1410 Router .................................... 36

Slot Groups for the ERX-7xx Models..................................... 37

Combinations of Line Modules In Slot Groups............................... 38

OC48 Line Modules ............................................................ 38

GE-2 Line Modules ............................................................. 38

Managing Modules Using the Software....................................... 38

Hot-Swapping Modules........................................................ 38

Protecting Modules and Slots ................................................. 38

Order of Installation ........................................................... 40

Required Tools and Safety Items ............................................. 40

Safety Guidelines ................................................................... 40

Installing SRP I/O and SRP Modules............................................... 41

Installing an SRP I/O Module.................................................. 42

Installing an SRP Module...................................................... 42

Installing Line and I/O Modules.................................................... 44

Installing a Line Module or an I/O Module ................................... 44

Removing a Line Module, SRP Module, or SRP I/O Module ..................... 46

Installing Components for Line Module Redundancy............................ 48

Installing the Line Modules....................................................48

Installing the Redundancy Midplane ......................................... 48

Installing the I/O Modules ..................................................... 50

Verifying the Installation ...................................................... 51

vi Table of C ontents

Table of Contents

Configuring Line Module Redundancy ............................................ 51

The Next Step ....................................................................... 51

Chapter 5 Cabling ERX Routers

Cabling Overview ................................................................... 53

Required Tools, Wires, and Cables ................................................ 55

Cabling the SRP I/O Module ....................................................... 56

External Timing Ports ......................................................... 56

Management Ports ............................................................ 59

Connecting to the Network............................................... 60

Connecting to a Console Terminal ....................................... 60

Cabling the Router for Power ...................................................... 60

Task 1: Turn Off All Router Power ............................................ 62

Task 2: Connect the Grounding Cables....................................... 63

Task 3: Connect the Power Cables............................................ 63

ERX-7xx Models, ERX-14xx Models, ERX-310 Router (DC Model).... 63

ERX-310 Router (AC Model) .............................................. 65

Cabling I/O Modules................................................................ 66

BNC Connectors................................................................ 66

HSSI Connectors ............................................................... 66

RJ-45 Connectors............................................................... 67

RJ-48C Connectors ............................................................. 67

LC Duplex Connectors ......................................................... 68

SC Duplex Connectors......................................................... 68

SMB Connectors................................................................ 70

X.21/V.35 Connectors.......................................................... 71

Redundant Ports ............................................................... 72

The Next Step ....................................................................... 72

Chapter 6 Powering Up ERX Router s

Before You Power Up the System.................................................. 73

Powering Up......................................................................... 73

Initialization Sequence ........................................................ 74

Status LEDs.......................................................................... 75

Powering Down ..................................................................... 75

The Next Step ....................................................................... 75

Chapter 7 Accessing ERX Routers

Setting Up Management Access ................................................... 77

Console Port Setup ................................................................. 78

Using HyperTerminal ......................................................... 78

Connecting Directly to the Router ............................................ 78

Assigning an IP Address....................................................... 80

Telnet Setup......................................................................... 80

SNMP ................................................................................ 82

The Next Step ....................................................................... 82

Table of Contents vii

ERX 8.0.x Hardware Guide

Part 3

Hardware Main

tenance, Replacement, and Troubleshooting

Procedures

Chapter 8 Maintaining ERX Routers

Required Tools and Items.......................................................... 85

Storing Modules and Components ................................................ 86

Cleaning the System................................................................ 86

Upgrading from Release 5.1.1 or Lower-Numbered Releases to Release 6.x.x or

Higher-Numbered Releases ........................................................ 87

Upgrading NVS Cards on SRP Modules ........................................... 87

Upgrading a System That Contains One SRP Module.......................87

Upgrading a System That Contains Two SRP Modules...................... 88

Replacing an NVS Card............................................................. 89

Upgrading Memory on SRP Modules.............................................. 90

Displaying the Memory Installed ............................................. 91

Removing SODIMMs........................................................... 91

Adding New SODIMMs ........................................................ 92

Verifying the Upgrade ......................................................... 93

Replacing SFPs on I/O Modules.................................................... 93

Removing SFPs................................................................. 94

Installing SFPs.................................................................. 95

Verifying the Installation ...................................................... 97

Replacing Fan Trays ................................................................ 97

Removing the Fan Tray........................................................ 99

Installing the Fan Tray ........................................................ 99

Installing a Cable-Management Bracket on ERX-7xx Models ..................100

Chapter 9 Troubleshooting

Diagnosing Problems..............................................................103

Initialization Sequence .......................................................103

Troubleshooting Power Failures...................................................104

Understanding Status LEDs to Troubleshoot.....................................104

LED Identification.............................................................105

LED Activity ................................................................... 110

Redundancy Status ........................................................... 113

Monitoring Temperatures of Modules ............................................ 113

Resetting Line Modules and SRP Modules ....................................... 114

Double-Bit Errors on SRP Modules ............................................... 114

Detecting Double-Bit Errors .................................................. 114

Fixing Double-Bit Errors ...................................................... 115

viii Table of Contents

103

Table of Contents

Part 4

Appendix A System Specifications

Appendix B Installation Guidelines and Requirements

Appendixes

ERX-14xx Models Specifications ................................................. 119

ERX-7xx Models Specifications...................................................122

ERX-310 Router Specifications ...................................................125

Your Preinstall Environmental R Regulatory Comp Safety Guidelin

ERX-310 Router W

Equipment Rack Re

Mechanical Requi Space Requiremen Proper Rack Insta

Cabling Recommen Product Reclamati Hardware Complia

Federal Communica FCC Requirements f Food and Drug Admin

Health..........................................................................139

Canadian Departme

Regulations ....................................................................139

Réglement sur le br

communications ..............................................................1

Industry Canada No Avis CS-03 d’Indus D.O.C. Ex planator Notes explicative

accessoires ....................................................................141

EC Declaration of C Volu nta ry Con tro l

ation Responsibilities .............................................129

equirements.....................................................130

liances ..........................................................130

es ..................................................................130

arnings (AC Model).......................................132

ERX-310 Power Cor Power Cable Warni

quirements...................................................133

dations .......................................................136

on and Recycling Program ...................................137

nce.............................................................138

d Warnings (AC Model) ............................132

ng (Japanese)........................................132

rements....................................................134

ts..........................................................135

llation ......................................................135

tions Commission (FCC) Statement ..................138

or Consumer Products .................................139

istration, Cente r for Devices and Radiological

nt Of Communications Radio Interference

ouillage radioélectrique du ministère des

tice CS-03 ...............................................139

trie Canada...............................................140

y Notes: Equipment Attachment Limitations ..........141

s du ministère des Communications: limites visant les

onformity................................................142

Council for Interference (VCCI) Statement for Japan ..142

119

129

Appendix C Cable Pinouts

SRP I/O Module ....................................................................143

CT1 and CE1 I/O Modules.........................................................146

Appendix D Contacting Customer Support and Returning Hardware

Contacting Customer Support ....................................................151

Return Procedure ..................................................................151

Locating Component Serial Numbers ...........................................152

Table of Contents ix

143

151

ERX 8.0.x Hardware Guide

Information You Might Need to Supply to JTAC .................................153

Tools and Parts Required..........................................................154

Returning Products for Repair or Replacement .................................154

Packing Instructions for Returning a Chassis ...............................154

Appendix E Declaration of Conformity

Declaration of Conformity ........................................................157

Part 5

Index

Index................................................................................161

157

x Table of Contents

About This Gu

This preface provides the following guidelines for using the E-series™ Routing Platforms ERX™ Hardware Guide:

Objectives on p a ge xi

ide

Objective

Audience on

E-series Routers on page xii

Documentation Conventions on page xii

List of Tech

Obtaining Documentation on page xvii

Documentation Feedback on page xvii

Requesting

page xi

nical Publications on page xiii

Support on page xviii

This guide p

An E-serie a future release or reinstall the system software, see JUNOSe System Basics Configuration Guide, Chapter 3, Installing JUNOSe Software.

NOTE: If the information in this guide, follow the JUNOSe Release Notes.

rovides the information you need to install and start the E-series router.

s router is shipped with the latest system software installed. To install

information in the latest JUNOSe Release Notes differs f rom the

Audience

This guide is intended for experienced system and network special ists working with E-series routers in an Internet access environment.

Audience xi

ERX 8.0.x Hardware Guide

E-series Routers

Five models of E-series routers are available:

ERX-1440 router

ERX-1410 router

ERX-710 router

ERX-705 router

ERX-310 router

All models use the same software.

In the E-series documentation, the term ERX-14xx models refers to both the ERX-1440 rout

er and the ERX-1410 router. Similarly, the term ERX-7xx models refers to both the ERX-710 router and the ERX-705 router. Other E-series router designations refer to specific models.

Documentation Conventions

Table 1 defines the notice icons used in this guide.

Table 1: Notice Icons

Icon Meaning Description

Informational note Indicates important features or

instructions.

Table 2: T

Table 2 def conventions used primarily in the JUNOSe Command Reference Guide.Formore information about command syntax, see the JUNOSe System Basics Configuration

Guide, Ch

ext and Syntax Conventions

Caution

Warning

ines text conventions used in this guide and the command syntax

apter 2, Command Line Interface.

Indicates a situation that might result in loss of data or hardware damage.

Alertsyoutotheriskofpersonalinjury or death.

Convention Description Examples

Text Conventions

xii Documentation Conventions

Convention Description Examples

Bold typeface Represents names of commands and

keywords in text.

Represents text that you m ust type.

Bold sans serif typeface

Fixed-width typeface

Italic typef

+ (plus sign) linking key names Indicates that you must press two or

Syntax Conventions in the Command Reference Guide

Plain typeface Represents keywords. terminal length

Italic typeface

|(pipesymbol)

[ ] (square brackets) Enclose an optional choice of a single

[ ]* (square brackets and the asterisk) Enclose an optional choice of one or

{}(braces)

ace

Represents output on the terminal screen.

Emphasizes words.

Identifies variables.

Identifies chapter, appendix, and book names.

more keys simultaneously.

Represents variables.

Indicates a choice between the keywords or variables on either side of the symbol. (Specifying a choice can be either optional or required.)

keyword or variable.

more keywords or variables.

Enclosearequiredchoiceofasingle keyword or variable.

Issue the clock source command.

Specify the keyword exp-msg.

host1(config)#traffic class low-loss1

host1#show ip community list Community standard list 1

permit 0:100 0:200 0:300

There are two levels of access,

user and privileged .

clusterId , ipAddress.

Appendix A, System

Specifications.

Press Ctrl+b.

mask , accessListName

diagnostic | line

[ internal | external ]

[level1|level2|l1]*

{ permit | deny } { in | out }

{ clusterId | ipAddress }

About This Guide

List of Technical Publications

The E-series and JUNOSe documentation set consists of several hardware and software guides, which are available in electronic and printed formats.

Table 3 lists and describes the E-series and JUNOSe document set. For a complete list of abbreviations used in this document set, along with their spelled-out terms, see JUNOSe System Basics Configuration Guide, Appendix A, Abbreviations and Acrony ms .

List of Technical Publications xiii

ERX 8.0.x Hardware Guide

Table 3: Juniper Networks E-series and JUNOSe Technical Publications

Document Description

E-series Hardware Documentation

E320 Quick Start Guide

E320 Hardware Guide

Shipped in the box with all new E320 routers. Provides the basic procedures to help you get an E320 router up and running quickly.

Provides the necessary procedures for getting the E320 router operational

, including information about:

Installing the chassis a nd modules

Connecting cables

E320 Module Guide

E-series Installation Quick Start poster or ERX Quick

Start Guide

ERX Hardware Guide

Powering up t

Configuring the router for management access

Troubleshooting common issues

Describes sw adapters (IOAs) available for the E320 router.

Provides detailed specifications for line modules and IOAs in E320 routers, and information about the compatibility of these modules with JUNOSe software releases.

Lists the layer 2 protocols, layer 3 protocols, and applications that line modules and their corresponding IOAs support.

Provides module LED information.

Shipped in the box with all new ERX routers. Provides the basic procedures to help you get an ERX router up and running quickly.

Provides the necessary procedures for getting ERX-14xx models, ERX-7xx models, and ERX-310 routers operational, including information about:

itch route processor (SRP) modules, line modules, a nd I/O

Installing the chassis a nd modules

Connecting cables

Powering up the router

Configuring the router for management access

he router

ERX M odule Guide

xiv List of Technical Publications

Troubleshooting common issues

Describes switch router processor (SRP) modules, line modules, and I/O modules available for the ERX routers.

Provides detailed specifications for line modules and I/O modules in ERX-14xx models, ERX-7xx models, and ERX-310 routers, and informati software releases.

Lists the l modules and their corresponding I/O modules support.

Provides m

on about the compatibility of these modules with JUNOSe

ayer 2 protocols, layer 3 protocols, and applications that line

odule LED information.

Document Description

ERX End-of-Life Module Guide

Provides an overview and description of ERX modules that are end-of-life (EOL) and can no longer be ordered for the following routers:

ERX-7xx models

ERX-14xx models

ER-310 router

JUNOSe Software Guides

JUNOSe System Basics Configuration Guide

Provides information about:

About This Guide

JUNOSe Physical Layer Configuration Guide

JUNOSe Link Layer Configuration Guide

JUNOSe IP, IPv6, and IGP Configuration Guide

JUNOSe IP Services Configuration Guide

Planning and c

onfiguring your network

Using the command-line interface (CLI)

Installing JUNOSe software

Configuring t

he Simple Network Management Protocol (SNMP)

Managing the router and its modules, including the use of high availability

(HA) for SRP redundancy

Configuring passwords and security

Configuring the router clock

Configuring v

irtual routers

Explains how to configure, test, and monitor physical layer interfaces.

Explains how to configure and monitor static and dynamic link layer interfaces.

Explains how to configure and monitor IP, IPv6 and Neighbor Discovery, and interior gateway protocols (RIP, OSPF, and IS-IS).

Explains how

to configure and monitor IP routing services. Topics

include:

Routing poli

cies

Firewalls

Network Address Translation (NAT)

J-Flow stati

stics

Bidirectional forwarding detection (BFD)

Internet Protocol Security (IPSec)

Digital cert

ificates

IP tunnels

Layer 2 services over GRE and over MPLS

Virtual Rout

er Redundancy Protocol (VRRP)

List of Technical Publications xv

ERX 8.0.x Hardware Guide

Document Description

JUNOSe Multicast Routing Configuration Guide

JUNOSe BGP and MPLS Configuration Guide

JUNOSe Policy Management Configuration Guide

JUNOSe Quality of Service Configuration Guide

Explains how to configure and monitor IP multicast routing and IPv6 multicast routing. Topics include:

Internet Group Management Protocol (IGMP)

Layer 2 Control (L2C)

Protocol Independent Multicast (PIM)

Distance Vector Multicast Routing Protocol (DVMRP)

Multicast Listener Discovery (MLD)

Explains how to configure and monitor Border Gateway Protocol (BGP) routing, Multiprotocol Label Switching (MPLS), and related applications, and configure

Explains how to configure, manage, and monitor customized policy rules for packet classification, forwarding, filtering, and flow rates. Also describes the packet mirroring feature, which uses secure policies.

Explains how to configure quality of service (QoS) features to queue, schedule, and monitor traffic flow. These features include:

and monitor the Virtual Private LAN Service (VPLS).

JUNOSe Broadband Access Configuration Guide

JUNOSe System Event Logging Reference Guide

Traffic classes and traffic-class groups

Drop, queue, QoS, and scheduler profiles

QoS parameters

Statistics

Explains how to configure and monitor a remote access environment, which can include the following features:

Authentication, authorization, and accounting (AAA)

Dynamic Host Configuration Protocol (DHCP)

Remote Authentication Dial-In User Service (RADIUS)

Terminal Access Controller Access Control System (TACACS+)

Layer 2 Tunneling Protocol (L2TP)

Subscriber management

Describes the JUNOSe system logging feature and describes how to use the CLI to monitor your system’s log configuration and system events.

xvi List of Technical Publications

Document Description

JUNOSe Command Reference Guide AtoM

JUNOSe Command Reference Guide N to Z

JUNOSe Comprehensive Index

Release Notes

JUNOSe Release Notes

Together c onstitute the JUNOSe Command Reference Guide.Contain important information about commands implemented in the system software. Use to look up:

Descriptions of commands and command parameters

Command syntax

A command’s related mode

Starting with JUNOSe Release 7.1.0, a history of when a command, its keywords, and its variables were introduced or added

Use with the JUNOSe configuration guides.

Provides a complete index of the JUNOSe software documentation set.

Provide the latest information about features, changes, known problems, resolved problems, and system maximum values. If the information in the Release Notes differs from the information found in the documentation set, follow the Release Notes .

About This Guide

Obtaining Documentation

To obtain the most current version of all Juniper Networks technical documentation, see the products documentation page on the Juniper Networks Web site at

http://www.juniper.net/.

To order printed copies of this guide and other Juniper Networks technical documents, or to order a documentation CD, which contains th is guide, contact your sales representative.

Copies of the Management Information Bases (MIBs) available in a software release are included on the documentation CDs and at

Documentation Feedback

We encourage you to provide feedback, comments, and suggestions so that we can improve the documentation. You can send your comments to

techpubs-comments@juniper.net, or fill out the documentation feedback form at

http://www.juniper.net/techpubs/docbug/docbugreport.html. If you are using e-mail, be

sure to include the following information with your com ments:

Release notes are included on the corresponding software CD and are available on the Web.

http://www.juniper.net/.

Document name

Document part number

Documentation Feedback xvii

ERX 8.0.x Hardware Guide

Requesting Suppor t

Page number

Software release version

For technical support, open a support case with the Case Manager link at

http://www.j

uniper.net/support/

or call 1-888-314-JTAC (from the United States,

Canada, or Mexico) or 1-408-745-9500 (from elsewhere).

xviii Requesting Suppor t

Part 1

Product Overview

ERX Overview on p age 3

Product Overview 1

2 Product O ver view

Chapter 1

ERX Overview

This chapter provides introductory information about th e ERX routers. It contains the following sections:

Overview on page 3

Overview

ERX Router

ERX Routers

ERX Modules on page 9

Network Management Tools on page 16

Redundancy

ERX routers are modular, carrier-class networking devices that deliver performance, reliabilit users. The ERX-7xx and ERX–14xx models offer high port density, low power consumption, and fully redundant Internet access routing and edge a ggregation. The ERX-310 ro capabilities. ERX routers offer the complete edge solution for IP-optimized carriers.

y, and service differentiation to both business and consum er Internet

uter supports the same services, but with smaller capacity and scaling

on p a ge 3

Features on page 16

Five mode

ls of ERX routers are available:

ERX-1440

ERX-1410

router

ERX-710 r

ERX-705 r

ERX-310 r

All model

Combinat

outer

susethesamesoftware.However,the specific model determines the:

ion of line modules supported

ERX Routers 3

ERX 8.0.x Hardware Guide

ERX-14xx Models

Conditions for line rate performance of line modules

Type, capacity, and number of SRP modules used

NOTE: In the E-s

eries documentation, the term ERX-14xx models refers to both the ERX-1440 router and the ERX-1410 router. The terms ERX-1440 router and ERX-1410 router refer to the specific models. See Figure 1 and Figure 2.

The ERX-1440 router manages an extremely high volume of network traffic, and uses a 40-Gbps switch route processor (SRP) module, either the SRP-40 G or SRP-40G+ modu

le. (The SRP-40G+ module obsoletes the SRP-40G module; however, the software continues to support both modules.) In this model, all line modules operate at full wire speed simultaneously.

The E RX-1410 router manages high levels of network traffic, and uses the 10-Gbps SRP m

odule (SRP-10G). You can configure the ERX-1410 router to enable the line modules either to operateatfulllinerateperformanceorto allow line modules to operate at a rate dependent on the resources available. The former op

tion restricts the allowed combinations of line modules. For information on configuring performanceoflinemodules,seeJUNOSe System Basics Configuration Guide, Chapter 6, Managing Modules.

NOTE: The 10-

Gbps SRP module used in the ERX-310 router is different from the 10-Gbps SRP module used in the ERX-1410 router. See “SR P Module” on page 10 for more information.

Externally, the ERX-1440 chassis is the same as the ERX-1410 chassis. (See Figure 1 and Figure 2

.) Both routers contain 14 vertical slots to accommodate modules.

4 ERX R outer s

Internally

, the ERX-1440 chassis differs from the ERX-1410 chassis, and

includes a special midplane for the 40-Gbps SRP module.

Installation procedures and operating procedures are identical for both systems. All ERX-7xx and ERX-14xx models use the same SRP I/O module, but differ

ent power input modules are used .

NOTE: The router may look different from the routers shown in the figures in this chapter, depending on the line modules in the slots.

Figure 1: ERX-14xx Models, Front View

Fan tray

behind bezel

Line module

SRP module

PCMCIA slot

ERX Over view

Air filter (optional)

behind bezel

Bezel

g013727

Cable

management

bracket

ERX Routers 5

ERX 8.0.x Hardware Guide

Figure 2: ERX-14xx Models, Rear View

I/O

module

SRP I/O

module

Power input

module

Fan tray

ERX-7xx

Models

Cable

management

bracket

Plenum

g013728

NOTE: In the E-series documentation, the term ERX-7xx models refers to both the ERX-705

router and the ERX-710 router. The terms ERX-705 router and ERX-710

router refer to the specific models. See Figure 3 and Figure 4.

The ERX-

7xx models are robust, high-density routers with less capacity than the ERX-14xx models. The ERX-7xx models use either the SRP-10G module or the SRP-5G module.

YoucanconfiguretheERX-7xxmodelstoenablethelinemodules(LM)tooperate

at full line rate performance or at a rate dependent on the resources available.

either For information abo ut configurin g performance of line modules, see JUNOSe System Basics Configuration Guide, Chapter 6, M a na gin g Modules.

6 ERX R outer s

NOTE: Th

e 10-Gbps SRP module used in the ERX-310 router is different from the 10-Gbps SRP module used in the ERX-710 router. See “SRP Module” on page 10 for more information.

ERX Over view

The ERX-705 chassis is the same as the ERX-710 chassis. (See Figure 3 and Figure 4.) The chassis co

ntains seven slots to accom m odate modules. In stallation procedures and operating procedures are identical for both systems. All ERX-7xx and ERX-14xx models use the same SRP I/O module, but different power input modules are used.

NOTE: The rout chapter, depending on the line modules in the slots.

Figure 3: ERX-7xx Models, Front View

Line module

Fan tray

SRP module

Figure 4: E

RX-7xx Models, Rear View

er may loo k different from the routers shown in the figures in this

PCMCIA slot

g013729

I/O

modules

Power input

module

Power switches

SRP I/O module

g013730

ERX Routers 7

ERX 8.0.x Hardware Guide

ERX-310 Router

The ERX-310 router is a low-end platform that supports all of t he same services as the ERX-7xx

and ERX-14xx models, but with smaller capacity and scaling capabilities. Like the ERX-7xx and ERX-14xx models, the ERX-310 router uses the s am e software architecture, providing a single IP entry point into the network w

ith the same IP-based protocols and services that are available on other ERX routers. The ERX-310 router is designed to be used as a small distributed POP router as well as a high-end CPE router.

The ERX-310 router is a three-slot chassis with a midplane architecture. One slot supports one

nonredundant 10-Gbps SRP module, while the other two slots support line modules. The router supports existing E-series ASIC-based lin e modules (except the OC48/STM16 line module), as well a s a select number of combination cards. The combina

tion cards provide a fixed combination of interfaces on the I/O module

so that a single slot can suppo r t multiple interfaces (ATM OC3 and GE, for example).

NOTE: The 10-Gbps SRP module used in the ERX-310 router is different from the 10-Gbps

SRP module used in the ERX-7xx and ERX-14xx models. See “SRP

Module” on page 10 for more information.

Figure 5: ER

The ERX-310

X-310 Router, Front View (AC Model)

Fan tray

NOTE: Th

router is available in either redundant AC- or DC-powered models.

SRP module

AC power

supply A

e DC model has blank filler panels in power supply slots.

Line modules

AC power

supply B

PCMCIA slot

g013731

8 ERX R outer s

Figure 6: ERX-310 Router, Rear View (AC Model)

g013732

ERX Over view

I/O module

SRP I/O module

ESD grounding jack

AC power inputs and switches A and B

Grounding posts

Figure 7: E

ERX Mod

RX-310 Router, Rear View (DC Model)

g013733

ules

Each sy use any line module for access or uplink . Access line modules receive traffic from low-speed circuits, and the system routes the traffic onto higher-speed uplin

stem supports an SRP mod ule and a se lection of line mod ules. You can

k line modules and then to the core of the network.

I/O module

SRP I/O module

ESD grounding jack

DC power inputs and switches A and B

Grounding posts

Each m

oduleconnectstoacorrespondingI/Omoduleviaapassive

midplane. See Figure 8.

The front panel of each module contains a collection of status LEDs (light-emitting diodes). For information about how to interpret the

see “Troubleshooting” on page 103.

LEDs,

ERX Modules 9

ERX 8.0.x Hardware Guide

Figure 8: Modules in ERX-14xx Models

Line modules

SRP modules

Line modules

I/O modules

SRP I/O

module

I/O modules

Connection via passive midplane

g013734

SRP Module

NOTE: So

me line modules require a minimum amount of memory to be used with JUNOSe Release 5.3.0 or a higher-numbered release. See the ERX Module Guide for line module specifications.

Switch route processor (SRP) modules perform system management, routing

alculations and mainten an c e, forwarding table com pu tations, statistics

table c processing, configuration storage, and other control plane functions. Each SRP module is a PowerPC-based system with its own memory, no nvolatile

orage, and p ower supply. (See Figure 9 and Figure 10.)

disk st

10 ERX M odules

Figure 9: SRP Module for ERX-7xx and ERX-14xx Models

Fabric board

Ejector

Status LEDs

ERX Over view

Midplane connectors

Board reset

button

NMI button

PCMCIA NVS card

System processor board

g013735

ERX Modules 11

ERX 8.0.x Hardware Guide

Figure 10: SRP Module for ERX-310 router

Ejector

Status

LEDs

g013736

Midplane connectors

PCMCIA

NVS card

Board reset

button

NMI button

Integrated fabric system processor board

Module Details

ERX-7xx and ERX-14xx models use up to two redundant SRP modules operating in an ac An SRP module must be present for any system to boot.

SRP modules ranging from 5 Gbps to 40 Gbps can be used in ERX-7xx and ERX-14xx models. Only a 10-Gbps SRP module (SRP-SE10G) can be used in ERX-3

NOTE: Because of different physical dimen s io ns and switch fabric capabilities, SRP modules are not interchangeable between systems. For example, the 10-Gbps SRP module router, and vice versa.

tive/standby configuration. ERX-310 routers use o nly one SRP module.

10 routers. See the ERX Module Guide for complete information.

used in ERX-7xx and ERX-14xx models cannot be used in th e ERX-310

12 ERX M odules

ERX Over view

CAUTION: Do not remove the SRP module while the system is running.

NOTE: Some SRP modules require a minimum amount of memory to be used

with JUNOSe Rel Guide for module specifications.

ease 5.3.0 or a higher-numbered release. See the ERX Module

SRP I/O Module

For details abo

ut installing SRP modules, see “Installing Modules” on page 35.

SRP Module Redundancy

SRP module redundancy is available only for ERX-7xx and ERX-14xx models. See “ Redund an

cy Features” on page 16 for more information.

Nonvolatile Storage

ThePCMCIAslotonthefrontoftheSRPmoduleholdsaTypeIIPCMCIAnonvolatile storage (NVS) system’s software and configuration files. The PCMCIA card is factory installed.

CAUTION: Alth router, we recommend that you do not do so. If you remove the card while data is being written to or copied from the NVS card, data can be lost or corrupted. Therefore, we a PCMCIA NVS card.

card. (See Figure 9 and Figure 10.) This card is loa de d with the

ough you can remove PCMCIA NVS (Flash) cards from a running

strongly recommend that you shut down the router before removing

The SRP I/O module is a single corresponding input/output module that interfaces with the SRP m works with all SRP modules, but is router specific. The I/O module used in ERX-7xx a nd ERX-1 4 xx models canno t be used in the ERX-310 router, a nd vice versa.

odules through the system’s m id plane. The same SRP I/O module

See Figure 2, Figure 4, and Figure 6 for locations.

Module Details

The SRP I/O module provides standard craft management interfaces, including:

10/100Base-T—The port enables access to the ERX router for Ethernet management

functions via CLI or SNMP, for example.

ERX Modules 13

ERX 8.0.x Hardware Guide

RS-232—The p ort provides a serial connection for monitoring the system’s hardware conf

iguration through a PC (running terminal emulation software) or

ASCII terminal. Allows d irect CLI access.

Alarm contacts—The contacts provide for remote indication of critical, major, and minor router alarms (ERX-7xx andERX-14xxmodelsonly;currently not implemen

ted)

Line Modules

External tim

ing inputs—The inputs provide a method of ensuring that the clock timin g used by the router remains synchronized with the network’s system clock. BNC connectors and wire wraps are available for ERX-7xx and ERX-14xx

For details a

bout installing the SRP I/O module, see “Installing Modules” on page 35.

models only.

Line modules (LM) process data from different types of network connections. For informa

tion about available lin e modules and which SRP modules supp ort

specific line modules, see the ERX Module Guide.

Figure 11 shows a representative line module. For details about installing line modules, see “Installing Modules” on page 35.

14 ERX M odules

Figure 11: Representative Line Module

Ejector

ERX Over view

Status LEDs

Board reset

button

NMI button

Midplane connectors

g013737

Packet Classification

Most line modules support packet classification on ingress; some non-ASIC line module fields (such as source an d destination IP address, source a nd destinatio n port, and protocol), the ingress IP interface, layer 2 fields, or some combination of the

s do not. A classification engine on the line module m a tches specific

se against user-configured filters at wire speed.

I/O Modules

Most line modules have a corresponding input/output (I/O) module that provides

ysical interconnection to th e network. Insert each I/O module into the

the ph back of the system, directly be hin d its corresponding line module.

For information about which line modules pair w ith which I/O mod ules, see the ERX Module Guide. See Figure 2, Figure 4, and Figure 6 for locations. For details

installing I/O modules, see “Installing Modules” on p age 35.

about

ERX Modules 15

ERX 8.0.x Hardware Guide

Network Management Tools

You can use different management tools to configure the system to meet the speci

CLI Management

The CLI provides fully developed a nd automated configuration and status functionalit network. For a full discussion of the CLI, see JUNOSe System Basics Configuration Guide, Chapter 2, Command-Line Interface.

SNMP MIB Management

The system offers a complete SNMP interface for configuration, status, and alarm reporting. The system supports both Standard and Enterprise MIBs (Manage Enterprise MIB is ASN.1 notated for easy importing into third-party SNMP management applications. For more information, see JUNOSe System Basics

Configurat

ion Guide, Chapter 4, C onfiguring SNMP.

fic networking requirements.

y through a local RS-232 port, Telnet, or SSH via any reachable

ment Information Bases). The Juniper Networks E-series

NMC-RX Device Management System

The NMX-RX application provides a global method of managing all routers, line modul

es, and ports through a graphical user interface.

Redundancy Features

This section describes system redundancy features.

SRP Modules

NOTE: This s contain one SRP module and therefore do not offer SRP module redundancy.

ERX-7xx and When two SRP modules of the same type are installed in the chassis, one acts as a primary (active) and the second as a redundant (standby) module. Both SRP modules sh

If the stan (and high-availability mod e is not enabled), it reboots the system and takes control. If high-availability mode has been enabled, automatic switchover occurs wi the software to the redundant SRP and reboot it. For information a bout configuring and managing SRP module redundancy, see JUN O Se System

Basics Co

ection applies to ERX-7xx and ERX-14xx models only. ERX-310 routers

ERX-14xx models use a 1:1 redundancy scheme for the SRP module.

are a single SRP I/O module lo cated in the rear of the chassis.

dby SRP module detects that the primary SRP module is not active

th near hitless failover. If you upgrade software, you must copy

nfiguration Guide, Chapter 6 , Managing Modules .

16 Redundancy Features

ERX Over view

After you install two SRP modules, the modules negotiate for the primary role. Anumberoffac preference is given to the module in the lower-numbered slot. The SRP modules record their latest roles and retain them the next time you switch on the system. For informati

tors determine which module becomes the primary; however,

on about installing SRP modules, see “Installing Modules” on page 35.

NVS Cards

If you have two SRP modules installed in a system, you can use NVS cards of different higher-capacity NVS card will equal that of the lower-capacity NVS card. For information about installing NVS cards, see “Installing Modules” on page 35.

When you install new NVS cards or SRP modules, you must issue the synchronize command to m module with the file system of the NVS card on the primary SRP module. (The NVS card on the redundant SRP module will hereafter be referred to as the redun hereafter be referred to as the primary NVS card.)

capacities on the SRP modules. The effective capacity of the

atchthefilesystemoftheNVScardontheredundantSRP

dant NVS card; the NVS card on the primary SRP module will

Line Modules

If the capacity of the primary NVS card is equal to or smaller than that o f the redundant NVS card, the system copies all the files from the primary NVS card to the redundant of the redundant NVS card, the system creates an invisible synchronization reserve file on the primary NVS card, provided that there is enough space for the file.

The purpose of the synchronization file is to prevent the creation of data that cannot fi is not visible when you view the files in NVS. The size of the fi le is e q ual to the difference in capacities of the two NVS cards. For example, if the primary N a capacity of 220 MB, the size of the synchronization file is 4 MB, and only 220 MB of space is available on the primary NVS card.

If the prim ary NVS card does not have enough space to create the synchronization reserve on the console. To resolve this issue, either d elete unwanted files from the prim ar y NVS card or replace the redundant NVS card with a higher-capacity NVS card.

NOTE: Th do not offer line module redundancy.

NVS ca rd. However, if the capacity of the primary NVS card exceeds that

t on the redundant NVS card. The file contains no useful data, and

VS card has a capacity of 224 MB and the redundant NVS card h as

file, the synchronize command fails, and a warning message is displayed

is section applies to ERX-7xx and ERX-14xx models only. E R X-310 routers

ERX-7xx line modules. For details about which line modules support redundancy, see the ERX Module Guide. In this scheme, an extra line module in a group

and ERX-14xx models support line module redundancy for several

Redundancy Features 17

ERX 8.0.x Hardware Guide

of identical line modules provides redundancy in case of line module failure. To us

e this feature, you need a:

Spare line mod

Redundancy mi

Redundancy I/

Aredundancym

ule

dplane

O module

idplane can cover 3–6 slots. It provides additional connectivity that enablesthesparelinemoduletotakecontroloftheI/Omoduleassociatedwith any failed line module in the redundancy group. The spare I/O module provides connectivit

The process b

y from the spare line module to the redundancy midplane.

y which the system switches to the spare line module is called

switchover. When switchover occurs, the system:

1. BreakstheconnectionbetweentheprimaryI/Omoduleandtheprimary

line module.

2. Connects the primary I/O module to the spare line module via the redundancy

midplane and redundancy I/O module.

Protocol processing then takes place on the spare line module.

Figure 12 shows the data flow when a spare line module becomes active.

18 Redundancy Features

Figure 12: Data Flow When a Spare Line Module Is Active

Redundancy



I/O module



Primary

I/O module



Midplane

ERX Over view

g013738

Power

Redundancy midplane



Spare line module

Primary line module

For information abou t installing modules for line module redundancy, see “In

stalling Modules” on page 35. For information about configurin g and managing SRP module redundancy, see JUNOSe System Basics Configuration Guide, Chapter 6, Managing Modules.

All E-series routers provide a power architecture that distributes redundant –48 VDC feeds through the router to each line module, SRP module, and fan module where

-DC converters provide local c onversion to the required secondary voltages.

DC-to

1. A packet arrives at the primary I/O module.

2. The packet passes along the redundancy midplane from the primary I/O module to the redundancy I/O module.

3. The packet passes from the redundancy I/O module to the spare line module.

4. The spare line module processes the packet.

The ER

X-310 router is available with either DC or AC power inputs. The AC-powered version can be configured with one or two hot-swappable power supplies for optional redundancy. (See Figure 5 and Figure 6.) The power suppli es convert AC power to

rnal –48 V redundant DC feeds that are then distributed through the router.

inte

Redundancy Features 19

ERX 8.0.x Hardware Guide

Fans

Forced air-cooling keeps the temperature of the E-series modules and components within normal

operating limits. In ERX-14xx models, six cooling fans are located in a tray at the top of the router (Figure 1). In ERX-7xx mo d els, four cooling fans arelocatedinatrayononesideoftherouter(Figure3). IntheERX-310router, two cooling f

ans are located in a tray on one side of the router (Figure 5).

The system mo

nitors the temperature of each module. If the temp erature of a module exceeds the maximum limit, the system immediately goes into thermal protection mode and the modules are powered off. The ERX system controller enters a low p

ower mode, keeps the modules in a power-off condition, a nd does not respond to any management interface commands. For information about troubleshooting high operating temperatures, see “Troubleshooting” on page 103.

In ERX-7xx and ERX–14xx models, the fan tray has two redundant converters that power t

he fans (for the ERX-14xx models, a –24 V, 50 W converter; for the ERX-7xx m od el s, a –12 V, 15 W converter). If one converter fails, the other takes over. The ERX-310 router does not have redundant converters.

For all E-series routers, the system software reports an alarm if any of the fans

or con verters fail.

20 Redundancy Features

Part 2

Initial Installation

Unpacking and Inspecting ERX Routers on page 23

Installing E

Installing Modules on page 35

Cabling ERX Routers on page 53

Powering Up E

Accessing ERX Routers on page 77

RX Routers on page 27

RX Routers o n page 73

Initial Installation 21

22 Initial Installation

Chapter 2

Unpacking an

This chapter reviews shipping contents and unpacking procedures for ERX routers. It contains the following sections:

Before You Begin on page 23

Unpacking E

Unpacking ERX-7xx Models and ERX-310 Routers on page 24

Inspecting Router Components and Accessories on page 25

If You Detec

Contacting Junipe r Networks on page 25

The Next Step on page 25

Before You B

egin

Before you b

d Inspecting ERX Routers

RX-14xx Models on page 23

t or Suspect Damage on page 25

egin unpacking the router, be sure you have the following tools:

A N o. 2 Phill

A utility kn

Amechanica

Unpacking ERX-14xx Models

ERX-14xx models come boxed, bolted, and strapped to a skid. For your conve location where you want to install it.

WARNING: Th system into position and one to screw it to the rack.

To u np ack E

ips screwdriver

ife

l lift, or at least two people to assist in lifting

nience, we recommend that you unpack the router in the

ree people are required to install the router in a rack: two to lift the

RX-14xx models:

Unpacking ERX-14xx Models 23

ERX 8.0.x Hardware Guide

1. Cut the two straps that secure the carton to the skid, open the carton from the

top, and remov

2. Unlock the four plastic clips that hold the box to the skid by squeezing them in

their center a

3. Remove the three screws that attach each of the two L-brackets to the router.

4. To avoid scratching the router when removing it from the skid, detach one of

e the box of accessories that sits on top of the router.

nd pulling out, and then lift the carton off the router.

the L-brackets from the skid by removing the three screws. See Figure 13.

Figure 13: Re

moving an L-Bracket

L-bracket

g013739

Unpacking ERX-7xx Models and ERX-310 Routers

ERX-7xx models and ERX-310 routers are shipped boxed, but n ot attached to a ski router in the location where you want to install it.

To u npack an ERX-7xx model or an ERX-310 router:

1. Open the carton from the top.

2. Remove

3. Remove the router from the box.

24 Unpacking ERX-7xx Models and ERX-310 Routers

d. For your convenience, we recommend that you unpack the

the box of accessories that sits on top of the system.

Unpacking and Inspecting ERX Routers

WARNING: Three people are required to install the router in a rack: two to lift the system into pos

ition and one to screw it to the rack.

Inspecting Ro

uter Components and Accessories

After you remo

Confirm the co

Inspect all ex damage.

Inspect all accessories ship pe d with each un it.

Document any damage noted during your inspection.

Confirm that the router has the correct number and type of modules for your ordered configuration.

ve the equipment from the shipping containers:

If You Detect or Suspect Damage

If you detect or suspect damage to any equipment:

Contact the shipper responsible for delivery, and formally report the damage.

Contact your Juniper Ne tworks sales representative or reseller.

ntents of each container.

ternal surfaces and external connectors for visible signs of

Contacting J

uniper Networks

The Next Step

Please conta or Mexico) or 408-745-9500 (from elsewhere), or contact your sales representative if you have any questions or concerns. See “Contacting Customer Support and Returning H

To familiarize yourself with the electrical, environmental, and other guid elines and require and Requirements” on page 129.

If you are familiar with these guidelines and requirements, turn to “Installing ERX Routers” on page 27.

ct Juniper Networks at 1-888-314-JTAC (from the United States, Canada,

ardware” on page 151 for complete contact information.

ments for installing ERX routers, turn to “Installation Guidelines

The Next Step 25

ERX 8.0.x Hardware Guide

26 The Next Step

Chapter 3

Installing E

This chapter descri bes how to install ERX routers i n a rack. I t contains the following sections:

Before You B

egin

Before inst

RX Router s

Before You Begin on page 27

Freestandi

Rack-Mounted Installation on page 28

The Next Step on page 33

Haveaplanf expansion of your system.

Have the tools and accessories needed to complete the installation.

Read and u nderstand the clearance requirements for the front and back of the chassis for cable routing and other unit access. See “Environmental Requireme

ng Installation on page 27

alling E-series routers, be sure you:

or installing the routers that takes into consideration future

nts” on page 130 for more information.

Read and un adequate ventilation.

Prepare the equipment racks by measuring and marking space for each router and plenum you plan to install.

Freestanding Installation

When installing the system on a table top or in any other freestanding mo de, be su re to leave enough space around the system for adequate ventilation. Position local communications, and remote communications.

See “Installation Guidelines and Requirements” on page 129, and “System Specifications” on page 119, for more information.

derstand the clearance requirements for the chassis to ensure

the router with easy access to the connections that it ne eds for power,

Freestanding Installation 27

ERX 8.0.x Hardware Guide

WARNING: Two people are required to lift an E-series router.

CAUTION: To p re

sure persons handling the router wear an antistatic device.

Connectors are modules are installed from the rear of the router. (See Figure 14.) See “Cabling ERX Routers” on page 53 for cabling installation procedures.

Figure 14: ERX-7xx Models, Rear View

I/O

modules

Power input

module

Power switches

vent electrostatic damage to the system and its components, make

located on the I/O modules and the power input module. These

SRP I/O module

g013730

Rack-Moun

ted Installation

We recomme Rack Requirements” on page 133 for detailed rack information.

Installa

tion Guidelines

Before in guidelines and refer to Figure 15:

28 Rack-Mounted Installation

nd that you use a standard EIA distribution rack. See “Equipm e n t

stallingthesystemsinarack,considerthefollowing

You can in stall up to 3 ERX-14xx m o d els, 6 ERX-7xx models, or 14 ERX-310 routers in a single 7-ft. (2.1 m) rack.

Installing multiple systems in a single rack enables you to maximize your availabl

espace.

Installing ERX Routers

You can install an ERX-14xx m odel, an ERX-7xx model, and an ERX-310 router togeth

er in the sa me rack. (Se e Figure 15.)

CAUTION: If you install an ERX-7xx model or ERX-310 router directly above an ERX-14xx mode

l in the same rack, you must install a plenum between the ERX-7xx model or ERX-310 router and the ERX-14xx model so that the air can circulate between the systems. (See Figure 51.) This plenu m is available from Jun iper Networks.

If you install

an ERX-14xx model above an ERX-7xx model or ERX-310 router, thereisnoneedtoinstallaplenumbetweentheunitsbecausetheERX-7xx models and ERX-310 routers vent air out the side of the chassis.

Install heavier systems, such as an ERX-14xx model, on the bo ttom of the rack. Mount l

ighter systems, such as the ERX-310 router, higher in the rack.

Rack-Mounted Installation 29

ERX 8.0.x Hardware Guide

Figure 15: ERX Routers Installed in Recommended Order

Safety Guidelines

Observe the following safety guidelines when mounting the router in a rack.

WARNING: Install equipment in the rack from the bottom upward. This helps to maintain the stability of the rack and reduces the chance of the rack tipping over.

WARNIN

system into position and one to screw it to the rack.

30 Rack-Mounted Installation

G: Three people are required to install the router in a rack: two to lift the

Installing ERX Routers

CAUTION: Evaluate the overall loading of the branch circuit before you install any equipment i

nto a rack.

WARNING: Connect the router or rack to ground (earth), and ensure that a reliable grounding path is m aintained in the rack.

WARNING: Do not

work on the system or connect or disconnect cables during

lightning activity.

WARNING: Be sure circuit breakers for the power source are in the OFF position before attachi

ng power cables.

WARNING: Before servicing the router, t urn off the power.

WARNING: Remove jewelry (including rings, necklaces, a nd watches) before

working on equi

pment that is connected to power lines. Metal objects heat up when connected to power and g round and can cause serious burns or become welded to the terminals.

WARNING: Do not insert any metal object, such as a screwdriver, into an open slot or the back plane. Doing so c an cause elec tric shock and serious burns.

WARNING: The ER

X-310 router AC model has more than one power-supply cord.

Disconnect two power cords before servicing to avoid electric shock.

Rack-Mounted Installation 31

ERX 8.0.x Hardware Guide

Preparing the Equipment Racks

Following your installation plan, use a tape measure and m arking pen to mea sure and mark space spacing, follow Network Equipment Building System (NEBS) requirements. If you choose not to install a plenum, be sure to include 2 U of space between each chassis for p

Installing the Router

To compl ete the i nstallation of the router in a rack, you need:

A Phillips screwdriver

Depending on th e router, up to eight 10-32 x 3/8 Phillips screws (provided with the router) f

on each equipment rack for each router component. For horizontal

roper exhaust. A plenum, however, is highly recommended.

or each router to be installed

WARNING: Thr

ee people are required to install the router in a rack: two to lift the

system into position and one to screw it to the rack.

CAUTION: Make sure all persons handling a router wear an antistatic device.

To install the router in the rack:

1. With one person standing on the left side of the router and another standing

on the right side, lift the router into the rack.

2. Position the router in its designated location in the equipment rack. Make

sure the holes of the mounting brackets align evenly with the holes of the equipment ra

3. Starting at the b o ttom, have the third person secure the router in the

equipment r

4. Connect the necessary cables. (See “Cabling ERX Routers” on page 53 for

instructio

ck on both sides.

ack by using the 10-32 x 3/8 Phillips screws.

ns on installing the cables.)

Figure 15 illustrates a distribution rack with one ERX-310 router, one ERX-7xx mod

el, and one ERX-14xx model installed.

32 Rack-Mounted Installation

The Next Step

Installing ERX Routers

After you finish installing the router:

If you need to install any modules, see “Installing Modules” on page 35.

If the router was delivered with the modules already installed, see “Cabling ERX Routers” o

n page 53 for instructions on connecting cables.

The Next Step 33

ERX 8.0.x Hardware Guide

34 The Next Step

Chapter 4

Installing M

This chapter describes how to install and remove E-series modules. For information about managing installed modules, see JUNOSe System Basics Configuration Guide,

Chapter 6, M

This chapte

odules

anaging Modules.

r contains the following sections:

Overview on page 35

Safety Guidelines on page 40

Installing

Installing Line and I/O Modules on page 44

Removing a Line Module, SRP Module, or SRP I/O Module on page 46

Installing

Configuring Line Modul e Redundancy on page 51

The Next Step on page 51

SRP I/O and SRP Modules on page 41

Components for Line Module Redundancy on page 48

Overview

Line modul I/O module slots are located in the rear. See “ERX Overview” on page 3 for front and rear views of ERX routers.

In ERX-14xx models, modules mount vertically in a chassis with 14 slots. In ERX-7xx chassis with 7 slots and 3 slots, respectively. See Figure 16.

e slots are located in the front of each ERX chassis, while

models and ERX-310 routers, modules mount horizontally in a

Overview 35

ERX 8.0.x Hardware Guide

Figure 16: Orientation of Line Modules in ERX Routers

ERX-7xx model

Slot Groups

ERX-14xx model

ERX-310 router

For details about available line modules and compatibility between line modules and SRP modules, see the ERX Module Guide .

The slots in the ERX-1410 router a nd ERX-7xx models are divided into groups. The number of groups and number of slots per group depend on the system.

There are no slot groups in the ERX-1440 router or the ER X-310 router. In the ER

X-310 router, slot 0 contains the SRP module and slots 1

and 2 each contain a line module.

Slot Gro

Aslotgr

ups for the ERX-1410 Router

oup in the ERX-1410 router com prises three adjacent chassis slots. The

groups for the ERX-1410 router consist of the following slots (Figure 17):

Slotgroup1—Slots0through2

Slotgroup2—Slots3through5

g013742

36 Overview

Slot group 3—Slots 8 through 10

Slot group 4—Slots 11 through 13

Slots 6 and 7 are reserved for the SRP modules.

Figure 17: ERX-1410 Slot Groups

12340 5 6 7 8 9 10 11 12 13

Chassis slots

SRP SRP

CT3 OC3CT1 OC3CT1CT1 CT3 CT3 CT3

Installing Modules

Figure 1

Slot

group 1

Slot

group 2

Slot Groups for the ERX-7xx Models

A slot group in an ERX-7xx model comprises one slot or two adjacent slots. The groups fo

Slots 0 an

8: ERX-7xx Model Slot Groups

Chassis slots

r an ERX-7xx model consist of the following slots ( Fig ure 18):

Slot grou

Slot gro

Slot grou

d 1 are reserved for the SRP modules.

6 5 4 3 2

Slot

group 3

p1—Slots2and3

up 2—Slot 4

up 3—Slot 5

p4—Slot6

Slot

group 4

g013743

OC3CE1 CE1

E3 ATM

Slot group 4 Slot group 3 Slot group 2

Slot group 1

SRP SRP

g013744

Overview 37

ERX 8.0.x Hardware Guide

Combinations of Line Modules In Slot Groups

For informati on about combinations of lin e modules in slot groups, see JUNOSe System Basics

Configuration Guide, Chapter 6, Managing Modules.

OC48 Line Modules

The ERX-1440 router with t he SR P- 40 G+ SRP m odule supports OC48 line modules. Othe

r ERX routers do not support OC48 line modules.

An OC48 line mo install this line module only in slots 2–3 and slots 4–5. Other slots in the system do not support this line module.

The corresponding OC48 Frame APS I/O module spans only one slot. Install the I/O module in the

dule spans two slots in an ERX-1440 router. You can

lower of the slots (either slot 2 or slot 4) that the line module spans.

GE-2 Line Modules

The ERX-1440 router with the SRP-40G+ SRP module supports GE-2 line modules in a module is in slot 2 or s lot 4 . The line module can be used with other SRP modules, but maximum line performance w ill not be achieved.

The ERX-310 router with the SRP-SE10G SRP module supports GE-2 line m o du les in both slots (

Other ERX ro

ll slots; however, full bandwidth is delivered only when the line

1 and 2). Maximum line performance is achieved in either slot.

uters do not support GE-2 line modules.

Managing Modules Using the Software

For information about software procedures associated with replacing and managi Guide, Chapter 6, Managing Modules.

ng modules, see JUNOSe System Basics Configuration

Hot-Swapp

Protectin

38 Overview

ing Modules

g Modules and Slots

All ERX rou toaddorremoveamodulewithoutpoweringdownthesystem.

Each ERX ch Table 4 for locations. To prevent damage from electrostatic discharge, connect an antistatic wrist strap to the jack when handling components.

ters support hot-swapping of modules. Hot-swapping enables you

assis h as an ESD (electrostatic discharge) grounding jack. See

Figure 19: Connecting the Wrist Strap to the ERX-310 Router (Rear)

ESD grounding jack

Installing Modules

Antistatic wrist strap

g013745

Table 4: Grounding Jack Locations

E-series Router Location

ERX-14xx models Front: inside front bezel in lower-left corner

ERX-7xx models Rear: lower-right corner

ERX-310 router

To protect the modules and slots when installing modules, observe the following guid elines:

CAUTION: When handling modules, use an antistatic wrist strap connected to the router’s ESD grounding jack. This action helps to protect the module from damage by electrostatic discharge.

CAUTION: Always handle the module by its edges. Do not touch the components, pins, leads, or solder conn ections.

Rear: upper-right corner

Front: lower-left corner

Rear: lower-right corner

Overview 39

ERX 8.0.x Hardware Guide

CAUTION: If you meet strong resistance w hen attempting to seat the module using the ejectors, r the module. Then verify, if applicab le, that the module matches its corresponding module (I/O module or line module). Also, be sure that you have aligned the top and bottom edg

CAUTION: Be su re to cover every empty slot with a blank filler panel to protect the system from dust or o ther foreign substances and to ensure proper system cooling.

emove it from the chassis and confirm that the slot is designed to hold

es in the correct matching tracks.

CAUTION: Do no in an antistatic bag.

Order of Installation

Before you attempt to install or replace a line mo du le (inserted in the front of the cha ssis), make sure t he corresponding I/O module (inserted in the rear of the chassis) is installed in a chassis slot. If the c orresponding I/O module is not present, the diagnostics fail, and you need to remove and reinsert the module.

is already in place. The slot diagnostics run when a line module

Required Tools and Safety Items

Youneedthefollowingtoolstoinstallalinemodule:

A Phillips screwdriver

An ESD wrist strap

Safety Guid

elines

Before and d

uring the installation process, observe the following precautions:

t discard the antistatic bag. When a module is not in use, store it

40 Safety Guidelines

WARNING: Do not work on the system or connect or disconnect cables d uring

lightning ac

tivity.

Installing Modules

WARNING: Be sure circuit breakers for the power source are in the OFF position before attachi

ng power cables.

WARNING: Remove jewelry (including rings, necklaces, a nd watches) before working on equipment that is connected to power lines. Metal objects heat up when connected

to power and ground and can cause serious burns or become

welded to the terminals.

WARNING: Do not

insert any metal object, such as a screwdriver, into an open slot

or the back plane. Doing so c an cause elec tric shock and serious burns.

WARNING: Never attempt to repair parts of modules yourself. Only trained customer serv

ice personnel are authorized to service parts. Call Ju niper Networks

Customer Service to make arrangements to return defective modules for repair.

Installing SRP I/O and SRP Modules

You must install SRP mod ules in specific slots in each router. See Table 5 for SRP module slot assignments.

Table 5: SRP Module Slot Assignments

Router Slot

ERX-14xx models 6 and 7

ERX-7xx mode

ERX-310 router 0

0and1

NOTE: Because of different physical dimen s io ns and switch fabric capabilities, SRP modules are not interchangeable between systems. For example, the 10-Gbps SRP module used in ERX-7xx and ERX-14xx m odels cannot be used in an ERX-310 router, and vice versa.

Installing SRP I/O and SRP Modules 41

ERX 8.0.x Hardware Guide

NOTE: Install the SRP I/O module before you install the SRP module; otherwise, the system diagnostics will fail.

Installing an SRP I/O Module

To install an SRP I/O module:

1. Ground yourself by using an antistatic w rist strap or other device and connect

it to the ESD gr

2. With a Philli ps screwdriver, loosen the captive screws that secure the blank filler

panel coverin

3. Remove the SRP I/O modu le from its antistatic bag, being careful not to touch

module compo

ounding jack on the chassis.

g the empty chassis slot, if present, and remove the filler panel.

nents, pins, leads, or solder c onnections.

Installing a

4. Slide the module into the ch assis by placing it between the guides of the

NOTE: See the figures in “ERX Overview” on page 3 for module locations.

5. Tighten the module’s captive screws u sing a Phillips screwdriver. Turn both

n SRP Module

To instal l an

1. Ground yours

NOTE: See the

2. Choose the slot in which you want to install the module.

selected slo

t and pushing the mo du le until it stops.

screws several times before tightening them completely to allow the module to sit correc

tly.

SRP module:

elf by using a n antistatic wrist strap or other device and connect

it to the ESD grounding jack on the chassis.

figures in “ERX Overview” on page 3 for module locations.

ERX-14xx models—Slot 6 or 7

ERX-7xx models—Slot 0 or 1

ERX-310 router—Slot 0

42 Installing SRP I/O and SRP Modules

Installing Modules

3. With a Philli ps screwdriver, loosen the captive screws that secure the blank filler

panel coverin

4. Remove the SRP module from its antistatic bag, being careful not to touch

module compon

5. Verify that the ejectors are in the open position, as shown in Fig ure 20.

g the empty chassis slot, if present, and remove the filler panel.

ents, pins, leads, or solder connections.

Figure 20: Eje

ctors in the Open Position



Opened



Closed



Closed



Opened

g013746

6. Slide the module into the ch assis by placing it between the guides of the

ted slot and pushing the module until it stops.

selec

The module s tops sliding when the ejectors make contact with the front

chassis.

of the

CAUTION: If you meet strong resistance w hen attempting to seat the module using the ejectors, remove it from the chassis and confirm that the slot is designed to hold the mo

dule. Then verify, if applicable, that the module m atches its corresponding

Installing SRP I/O and SRP Modules 43

ERX 8.0.x Hardware Guide

module (I/O module or line module). Also, be sure that you have aligned the top and bottom edg

7. Insert the module into the backplane by simultaneously depressing both

ejectors (as s

8. Tighten the module’s captive screws using a Phillips screwdriver. Alternately

turn each scre themoduletositcorrectly.

Installing Line and I/O Modules

This section describes the procedures for installing line and I/O modules.

NOTE: Install the I/O mo dule before you install the corresponding line m odule; otherwise, t when you issue the show version command. If this occurs, remove and reinsert the line module.

he diagnostics fail and the line module’s status is listed as inactive

es in the correct matching tracks.

hown in Figure 20) and exerting forward pressure on the module.

w several times before tightening them co m pletely to allow

Installing a

Line Module or an I/O Module

To insta ll a m

1. Ground yours

it to the ESD grounding jack on the chassis.

2. Choose the s

NOTE: Line modules are in the front of the system and I/O modules are in the back of the sy

odule:

elf by using a n antistatic wrist strap or other device and connect

lotwhereyouwanttoinsertthemodule.

stem.

44 Installing Line and I/O Modules

Table 6: Module Slot A ssignments

Router Module Slot

ERX-1440 router

ERX-1410 router

ERX-7xx models Install modules in slots 2–6

ERX-310 router

3. With a Phillips screwdriver, loosen the screws that secure the blank filler panel

covering the empty chassis slot, if present, and remove the filler panel.

Install modules other than the OC48 modules in slots 0–5 and slots 8–13

Install the OC48 line module in slots 2–3 and slots 4–5

Install the corresponding I/O module only in the lower of the two slots (either slot 2 or slot 4) that the line module spans

Install modu

Install modules in slots 1–2

les in slots 0–5 and slots 8–13

Installing Modules

4. Remove the module from its antistatic bag, being careful not to touch module

components, pins, leads, or solder connections.

5. Verify that the ejectors are in the open position, as shown in Fig ure 20.

6. Guide the module into the chassis by placing it between the guides of the

selected slot and pushing the module until it stops.

The module s tops sliding when the ejectors make contact with the front of the chassis.

CAUTION: If you meet strong resistance w hen attempting to seat the module using the ejectors, remove it from the chassis and confirm that the slot is designed to hold the module. Then verify, if applicab le, that the module matches its corresponding module (I/O module or line module). Also, be sure that you have aligned the top and bottom edges in the correct matching tracks.

7. Insert th e module into the midplane by simultaneously depressing both

ejectors (as shown in Figure 20) and exerting forward pressure on the module.

8. Tighten the module’s captive screws using a Phillips screwdriver. Alternately

turn each screw several times before tightening them co m pletely to allow themoduletositcorrectly.

Installing Line and I/ O Modules 45

ERX 8.0.x Hardware Guide

Removing a Line M odule, SRP Module, or SRP I/O Module

NOTE: We recommend that you issue the slot disable command from the CLI beforeremovingalinemoduleorI/Omodule.

CAUTION: If you

do not use the halt command before removing or powering down

an SRP, the system’s NVS card can become corrupted.

To remove a l ine

1. For SRP modules

module, SRP module, or SRP I/O module:

and SRP I/O modules, issue the appropriate halt comma nd

(halt, halt primary-srp,orhalt standby-srp).

See JUNOSe Syst

em Basics Configuration Guide, Chapter 6, Managing Modules for

information about the halt commands.

2. Ground yourse

lf by using an antistatic wrist strap or other device and connect

it to the ESD grounding jack on the chassis.

3. Useascrewdri

ver to loosen the thumb screws located at the top and bottom of

the module panel.

4. Pull the eject

or handles located at the top and bottom of the module so that

they are in position 2, as shown in Figure 21.

46 Removing a Line Module, SRP Module, or SRP I/O Module

Figure 21: Ejectors in the Closed Position



Opened

Closed

Installing Modules



Closed



Opened

5. Carefully slide the module out of the chassis.

6. Place t

he mod ul e in its antistatic bag, being careful not to touch module

g013747

components, pins, leads, or solder connections.

7. Cover t

he empty chassis slot with a blank filler panel, and tighten the filler panel’s captive screws using a Phillips screwdriver. Turn both screws several times before tightening them completely.

If you remove an I/O module and not the corresponding line module, the line module reboots. Its status becomes inactive when you issue the show version command.

If you remove a line mo dule and do not delete the corresponding

guration, the status of the lin e module is listed as n ot present

confi when you issue the show version command.

Removing a Line Module, SRP Module, or SRP I/O Module 47

ERX 8.0.x Hardware Guide

Installing Components for Line Module Redundancy

A spare line module provides redundancy for a group of identical line modules for ER

NOTE: The ERX-310 router does not support line module redundancy.

X-7xx and ERX-14xx models only.

For line module

The line module

The redundancy

The I/O modules

For more inform

WARNING: Do not insert any metal object, such as a screwdriver, or place your hand into an open slo rings, necklaces, and watches) before working on equipment that is connected to power lines. These actions can prevent electric shock and serious burns.

CAUTION: When h router’s ESD grounding jack, and hold modules by their edges. Do not touch the components, pins, leads, or solder connections. These actions help to protect modules from d

redundancy to operate, you must install:

s,includingthesparelinemodule

midplane

, including the spare I/O module

ation, see “Redundancy Features” on page 16.

t or the backplane when the router is on. Remove jewelry (including

andling modules, use an antistatic wrist strap connected to the

amage by electrostatic discharge.

Installing th

eLineModules

To install the

1. Install the sp

group.

2. Install the o

I/O Modu les” on page 44.)

line modules in a redundancy group:

are line m odule in the lowest-numbered slot of the redundancy

ther line modules in the remaining slots. (Se e “Installing Line and

Installing the Redundancy Midplane

To install the redundancy midplane in a redundancy group:

48 Installing Components for Line Module Redundancy

Installing Modules

CAUTION: Ifyoudonotusethehalt command before removing or powering down an SRP, the syst

1. Enter the halt command.

em’s NVS card can become corrupted.

See JUNOSe System Basics Configuration Guide, Chapter 6, Managing Modules for information about the halt command.

WARNING: Turn

off the router before you install the redundancy midplane. Working

inside the router when it is on can lead to electric sho ck and serious burns.

2. Turn off the power switches located on the power input mod ule in the rear

of the system (Figure 22).

3. Remove the I/O modules from the slots that the redundancy midplane will

span.

4. Place the redundancy midplane in the chassis so that it rests again st the guides

below the chassis midplane (Figure 22).

5. Align the screw ho les in the redundancy midplane with the screw holes in the

guides so that the m idplane covers the slots for the redundancy group.

6. Using a Phillips screwdriver and the screws provided, loosely attach, but do not

tighten, the redundancy midplane to the guides.

7. Carefully insert an I/O module in one slot to ensure that the redundancy

midplane is aligned correctly; then tighten the screws.

CAUTION: A misaligned redundancy midplane can result in bent pins on the backplane an

d midplane and poor contact between the I /O modules and the

redundancy m idplane.

Installing Components for Line Module Redundancy 49

ERX 8.0.x Hardware Guide

Figure 22: Installing a Redundancy Midplane

Install

Redundancy midplane

ing the I/O Modules

To ins ta

1. Install

redundancy group.

CAUTION: When setting up a redundancy group with line modules, be sure to install the redundancy I/O module in the lowest-numbered slot of the redundancy group. It is po can damage other I/O modules connected to the redunda ncy midplane.

2. Instal

redundancy group. (See “Installing a Line Module or an I/O Module” on page 44.)

3. Cable each module to provide a path to the remote interface. (See “Cabling

ERX Routers” on page 53.)

g013748

ll the I/O mo d ules in a redundancy group:

the redundancy I/O module in the lowest-numbered slot of the

ssible to install the redundancy I/O module in other slots; however, doing so

l the corresponding I/ O module for the line module of each slot in the

50 Installing Components for Line Module Redundancy

Verifying the Installation

To verify that the installation is complete:

1. After you have cabled the system for power, as described in “Cabling ERX

Routers” on pa

The system reboots.

2. Issue the show redundancy command, and verify that t he display shows

the redundancy hardware.

ge 53, turn on the power switches.

Configuring Line Module Redundancy

For information about configuring line modu le redundancy, see JUNOSe System Basics Confi

guration Guide, Chapter 6, Managing Modules.

Installing Modules

The Next Step

After you install the modules, you can connect cable s to the system. See “Cabling

ERX Routers” on page 53.

The Next Step 51

ERX 8.0.x Hardware Guide

52 The Next Step

Chapter 5

Cabling ERX R

This chapter describes how to cable an ERX router. Before you cable the router, ensure that you have completed all installation instructions identified in previous chapters.

This chapte

Cabling Overview on page 53

Required Tools, Wires, and Cables on page 55

Cabling the

Cabling the Router for Power on page 60

Cabling I/O Modules on page 66

The Next Ste

Cabling Overview

Cabling an ERX router requires the following main tasks:

outers

r contains the following sections:

SRP I/O Module on page 56

p on page 72

1. Familiarize yourself with the mo dule ports, and ensure that you have the cables

and wires n

2. Read and understand all safety warnings. (See “Installation Guidelines and

Requireme

3. (Optional) Connect timing ports.

4. Connect the SRP I/O module to the network and to a manage m en t console.

5. Connect gr

6. Connect the power cables from the power source to the power input module.

7. Connect the line I/O modules to their appropriate n etwork interface.

eeded to complete each cabling procedure. (See Figu re 23.)

nts” on page 129.)

ounding wires to the router chassis.

Cabling Overview 53

ERX 8.0.x Hardware Guide

NOTE: We recommend that you use shielded cables w here appropriate.

Figure 23: ERX Ports and Connectors (ERX-14xx Model Shown)

OC3-4

I/O module

(slot 12)

I/O module

(slot 9)

Port 0

CT3

Alarm leads

External timing ports (Europe)

External timing ports (North America)

OC3

OC3-4

I/O

SINGLE

MODE

OC3-4

I/O

SINGLE

MODE

CT3

I/O

SRP I/O module (slot positions 6 and 7)

FE-8 I/O module (slot 5)

CT3

I/O

ALARMSEXTERNAL TIMINGCONSOLE

MINOR

MAJOR

CRITICAL

E1 75 OHM CLOCK IN

FE-8

I/O

Port 0

Port 1

Port 2

ATG

T1 100 OHM

CLOCK IN

10/100 BASE T

RS-232

BTG

Port 3

10/100 BASE T port

RS-232 terminal port

OC3

I/O module

(slot 13)

Port 1

Blank

faceplate

Ejector

54 Cabling Over view

THIS PRODUCT IS EQUIPPED WITH TWO POWER FEEDS. DISCONNECT BOTH FEEDS PRIOR TO SERVICE.

POWER A POWER B

-48VDC -48VDCRTN RTN

-48VDC RTN -48VDC RTN

POWER A POWER B

WARNING! NO OPERATOR ACCESSIBLE COMPONENTS. AUTHORIZED SERVICE PERSONNEL ONLY.

OFF

Power input module

OFF

Power A and Power B on/off switches

Power A and Power B input connectors

Ground terminals

g013749

Required Tools, Wires, and Cables

Cabling your system takes only a few minutes. You need the following items and thos

e listed in Table 7 for proper installation:

Cabling ERX Routers

1/8–inch flat

3/8–inch wren

No. 2 Phillips

Ground wires—

#10 (ERX-7xx a

head screwdriver

ch or 3/8–inch nut-driver

screwdriver

We recommend a minimum of 10-AWG ground wire.

nd ERX-14xx models) or #8 (ERX-310 router) kep nut to

connect the ground (earth) wire to the ground terminal.

Power input module wiring— We recommend a minimum of 8-AWG wire for ERX-14xx models, 12-AWG wire for ERX-7xx models, and 14-AWG wire for ERX-310 rout

ers (DC model) with a dual stud terminal lug with 5/8–inch

spacing. For the ERX-310 router AC model, use a standard IEC power cord.

Consider the distance from the connection point and the configuration of the system when determining the size of wire used.

See “System Specifications” on page 119 for more information on router specificat

Table 7: Req

Connection Port and Cable Used

Management connection between SRP I/O module and the LAN

Management connection between SRP I/O module and a managemen

Direct connections to I/O modules See the ERX Module Guide for specific I/O module connector

uired Cables

tconsole

ions.

One 10/100Base-T Ethernet management port with an RJ-45 connector

OneRS-232portwithaDB-9connectorforVT100 managemen

information

t access

NOTE: If you plan to use a cable-management bracket (ERX-7xx and ERX-14xx models only), install it before you begin cabling your router. Cable-management brackets are h elpful to keep network interface cables untangled and orderly and to prevent cables from hindering access to other slots. See “Installing a Cable-Management Bracket on ERX-7xx Models” on page 100.

Required Tools, Wires, and Cables 55

ERX 8.0.x Hardware Guide

Cabling the SRP I/O Module

Before powering up the router, you must set up a management console. The console enabl and to manage your system using the command-line interface (CLI).

When connecting a console directly to the SRP I/O module, use a cable appropriate foryourterminalconnector.ThecablemusthaveafemaleDB-9connectortoattach to the RS-232

es you to communicate with your system during the power-up process

port on the SRP I/O module. See Figure 24 an d Figure 25.

Table 8: SRP I/O Ports

The console p

ort is conside red a data terminal e quip m en t interface (DTE). Direct connection to a terminal or PC (which also have DTE interfaces) requires a crossover cable.

NOTE: The alar

m function on the SRP I/O module is currently not implemented.

Only ERX-7xx and ERX-14xx models have external timing ports and alarm leads located o n th

e SRP I/O m odule. All ERX routers have console ports located on

the SRP I/O mod ule. See Tab le 8 for details on ea c h component.

Port Description

Alarm leads (ERX-7xx and ERX-14xx models only)

External timing ports (ERX-7xx and ERX-14xx models only)

Management console ports One 10/100Base-T Ethernet

Six terminal blocks for external alarm contacts; use a minimum 26-AWG for each (currently not implemented)

Two 3-pin wire-wrap posts for US external clock sources; primary (A) and seconda

Two BNC connectors for E1 clock sources; pr

management port with an RJ-45 connector

ry (B)

imary (A) and secondary (B)

External Timing Ports

NOTE: This section applies to ERX-7xx and ERX-14xx models only. The ERX-310 router does not support external timing.

56 Cabling the SRP I/O Module

One RS-232 console port with a DB-9 connector for VT100 management access

Cabling ERX Routers

The SRP I/O module has two input ports for external clock sources. These ports pr

ovide a way to ensure that the router system clock remains synchronized with the network’s system clock. The primary clock is labeled A; the secondary, redundant cloc k is labeled B.

Use the connectors appropriate for your locale (European or North Americ

an standard):

European—Tw

North Americ

o 75-ohm E1 2.048-Mbps inputs with BNC connectors

an—Two 100-ohm T1 inputs with three pin wire-wrap connectors. Pins are labeled T (tip), G (ground) , and R (ring). We recommend using 26-AWG wire minimum.

NOTE: Use shi

elded cables to connect the external clock sources to the clock

source input ports.

Cabling the SRP I/O Module 57

ERX 8.0.x Hardware Guide

Figure 24: SRP I/O Module for ERX-14xx Models

BNC (Europe)

Wire-wrap connectors (North America, Japan)

RJ-45

26-AWG wire

ALARMSEXTERNAL TIMING

CONSOLE

MINOR

MAJOR

CRITICAL

E1 75 OHM CLOCK IN

T1 100 OHM

CLOCK IN

10/100

BASE T

RS-232

ATG

BTG

DB-9

To co n

1. Depen

58 Cabling the SRP I/O Module

nect the clock source input ports:

ding on the connector type, complete one of the following tasks:

E1: Attach the BNC co nnector to Clock A’s external timing port.

T1: Wrap the tip wire on pin marked T of Clock A’s external timing port,

round wire on G pin, and the ring wire on R pin.

the g

g013750

Management Ports

Cabling ERX Routers

NOTE: You can use a wire-wrap gun to attach wires to pins.

2. Attach the opposite end of the external timing cable or wires to your network’s

clock source A

3. Repeat Steps 1 and 2 for the Clock B connections.

NOTE: This section applies to all ERX routers.

The C onsole section of the SRP I/O module has two ports for management access. (See Figure 24 and Figure 25.)

Figure 25: SR

The 10/100Base-T Ethernet port accepts an RJ-45 (male) connector, providing an out-of-ban

The RS-232 por

d connection for LAN access through a Telnet session or SNMP.

t accepts a DB-9 (female) connector for direct CLI access

from a console terminal.

The console port is considered a da ta terminal equipment interface (DTE). Direct connection to a terminal or PC (which also have DTE interfaces) requires a c rossover c

P I/O Module for the ERX-310 Router

SRP I/O module

RS-232 10/100

able.

BASE T

g013751

See “Accessing ERX Routers” on page 77 for more information about m anage ment access.

Cabling the SRP I/O Module 59

ERX 8.0.x Hardware Guide

Connecting to the Network

To connect the router to the network:

1. Insert an Ethernet cable (RJ-45) connector into the 10/100Base-T (RJ-45) port

on the SRP I/O m

2. Connect the o ther end of the cable to the appropriate Ethernet network for

an ou t-of-ban

odule un til it clicks into place.

dconnection.

Connecting t

When you conn appropriate for your terminal connector. The cable must have a female DB-9 connector to attach to the RS-232 port on the SRP I/O module.

To connect the console to the SRP I/O module:

1. InsertthefemaleDB-9connectorintotheRS-232port,andtightenthescrews.

2. Connect the other end of the cable to your terminal’s serial port (VT100/ANSI).

Cabling the Router for Power

After you have correctly cabled the modules and I/O modules, you must attach grounding and electrical wires before you attempt system power-up. T

1. Switch all r

CAUTION: Sw installation.

o a Console Terminal

ect a console directly to the router SRP I/O module, use a c able

hree main tasks are involved:

outer power switches to OFF.

itches may have inadvertently flipped to ON du ri ng shipping and

2. Connect the grounding wires to the chassis.

WARNING: Always connect the grounding wires first (before connecting the power cables) and disconnect them last when installing or servicing the router.

3. Connect the power cables (AC o r DC) to the power input module s.

See “System routers. Table 9 identifies the power input module cab ling requirements, an d Figure 26 shows the m ain comp onents o f a power i np ut module.

60 Cabling the Router for Power

Specifications” on page 119 for the power requirements for E RX

Table 9: Power Input Module Cables and Wires Needed

Cable/Wire From To

ERX-14xx models

One 10-AWG ground wire Power input module ground terminal Termination ground

Two 8-AWG wire leads Power input module Power A –48 VDC

Appropriate leads on power source No.1

and RTN leads

Two 8-AWG wire leads Power input module Power B –48 VDC

Appropriate leads on power source No.2

and RTN leads

ERX-7xx models

One 10-AWG ground wire Power input module ground terminal Termination ground

Two 12-AWG wire leads Power input module Power A –48 VDC

Appropriate leads on power source No.1

and RTN leads

Two 1 2 - AWG w

ire leads

Power input

module Power B –48 VDC

Appropriat

e leads on power source No.2

and RTN leads

ERX-310 router

One 10-AWG ground wire Power input module ground terminal Termination ground

Two 14-AWG wire leads (DC model only) Power input module Power A –48 VDC

Appropriate leads on power source No.1

and RTN leads

Two 14-AWG wire leads (DC model only) Power input module Power B –48 VDC

Appropriate leads on power source No.2

and RTN leads

One AC power cord (AC model only) Power input module AC power IEC

receptacl

Appropriate AC power supply

Cabling ERX Routers

Cabling the Router for Power 61

ERX 8.0.x Hardware Guide

OFF

WITH

POWER A POWER

POWER B

-48VDCTN RTN

OFF

POWER A POWER B

POWER B

-48VDC RTN

OFF

-48VDC

Figure 26: Power Input Module for ERX-14xx Models

THIS PRODUCT IS EQUIPPED WITH TWO POWER FEEDS. DISCONNECT BOTH FEEDS PRIOR TO SERVICE.

POWER A POWER B

Power B

leads

OFF

Power input

module cover

g013752

OFF

POWER A POWER B

-48VDC -48VDCRTN RTN

-48VDC RTN -48VDC RTN

WARNING!

NO OPERATOR ACCESSIBLE

COMPONENTS. AUTHORIZED

SERVICE PERSONNEL ONLY.

Power A

leads

Ground

Tas k

62 Cabling the Router for Power

1: Turn Off All Router Power

re starting, you must switch all router power switches to OFF.

Befo

rn off the router, push each power switch to the OFF position.

To tu

Task 2: Connect the Grounding Cables

All ERX routers have two grounding studs located in the rear of the chassis, near the power inpu

ts. Each stud provides grounding for a single power unit.

Cabling ERX Routers

To g rou nd ea ch

1. Locate the gro

2. Remove the nuts and locking washers from the grounding studs.

power unit:

unding studs on the router (Figure 26 and Figure 27).

NOTE: We recommend a minimum of 10-AWG ground wire with a ring style terminal.

3. Place the grounding cable lead on one of the grounding studs and tighten

the nuts to sec

4. Connect the other end of the ground cable to the appropriate ground

termination l

5. Repeat Steps 3–4 for the remaining grounding stud.

ure the connection.

ead.

NOTE: When grounding an ERX router, leave a service loop in the grounding cable to ensure that the grounding cable is the last cable to disconnect from the shelf if strain is plac

ed on the electrical cables.

Task 3: Conne

ct the Power Cables

To connect po Figure 26, Figure 27, and Figure 28 as needed.

wer cables to the router, follow these steps. Refer to

ERX-7xx Mode

WARNING: Before you begin t his procedure, ensure that all power switches are

in the OFF position.

1. Be sure you have completed Task 1 and Task 2 in the previous sections.

2. If applicabl

and remove it.

ls, ERX-14xx M odels, ERX-310 Router (DC Model)

e, loosen the screws from the clear power input module cover

Cabling the Router for Power 63

ERX 8.0.x Hardware Guide

WARNING: Be sure the power source is turned off, the router is turned off, and proper groundi

ng wires are attached before continuing with this procedure.

WARNING: The wiri ng color code of the power cab les depe nds on the color coding of the DC power source installed at your site. Color code standards for DC wiring do not ex

ist. To ensure that the correct polarity is connected to the router power units, confirm the connection of the power cables to t he + (positive) and – (negative) leads at the power source.

3. Removethenutsandlockingwashersfromthepostsforthepowerinput(A

or B) using a small insulated adjustable wrench.

4. Place one neg ative (neutral) cable lead on the post labeled –48 VDC.

5. Replace the lo

cking washers and nuts, and tighten the nuts to secure the

connection.

6. Place the othe

7. Replace the locking washer and nut, and tighten the nut to secure the

r cable lead on the post labeled RTN.

connection.

8. Attach the opposite end of Power A’s wire leads to the appropriate leads on

your power so

urce.

NOTE: To provide redundancy, do not term inate Power A and Power B leads at the same power so

9. Place the clear plastic guard over the terminal posts, and se cure it in place by

tightening t

10. Repeat Steps 1–9 for each power input module in your configuration.

urce.

he four screws.

64 Cabling the Router for Power

Figure 27: ERX-310 Router, Rear View (DC Model)

Cabling ERX Routers

Power A

leads

ERX-310 Ro

1. Insert the

DC power

input A

Ground

-48VDC RTN

OFF

Power A

POWER A

switch

uter (AC Model)

power cord into the AC power IEC receptacle. (See Figure 28.)

DC power

input B

-48VDC RTN

OFF

Power B

switch

POWER B

2. Insert the other end of the power cord into an appropriate AC power source.

NOTE: To provide redundancy, do not term inate Power A and Power B leads at the same power source.

g013753

3. Repeat Steps 1–2 for the other power input module, if needed.

Figure 28: ERX-310 Router, Rear View (AC model)

POWER A POWER B

AC power input A

with switch

Ground

100-240V ~ 5A

50/60 Hz

AC power input B

with switch

g013754

Cabling the Router for Power 65

ERX 8.0.x Hardware Guide

Cabling I/O Modules

This section illustrates the common conn ector types used with ERX I/O modules. F line modules, see the ERX Module Guide.

or information about the connectors on the different

BNC Connector

Figure 29: I/O

Module with BNCs

CT3

I/O

Port 0

Port 1

g013755

HSSI Connectors

66 Cabling I/O Modules

The HSSI I/O module uses a standard 50-pin HSSI connector.

CAUTION:

Do not terminate HSSI connections with SCSI connectors. Although SCSI connectors lo ok very simila r to HSSI connectors, using SCSI connectors o n HSSI connections can lead to data loss.

Figure 30: HSSI I/O Module with 50-Pin HSSI Connector

HSSI-3

I/O

Cabling ERX Routers

Port 0

RJ-45 Connectors

When inserting an RJ-45 conne ctor, be su re it clicks into the port.

Figure 31: I/O Module with RJ-45 Connector

C Connectors

RJ-48

10/100

FE-2

I/O

g013756

Port 0

g013757

When i

nserting an RJ-48C connector, be sure it cl icks into the port.

Cabling I/O Modules 67

ERX 8.0.x Hardware Guide

Figure 32: I/O Module with RJ-48C Connectors

CE1

I/O

Port 0

g013758

LC Duplex C

onnectors

In accorda Class, Requirements, and User’s Guide (2001), multimode I/O modules with LC connectors are defined as follows:

CLASS 1 LED PRODUCT.

In accordance with EN60825-1, Safety of Laser Products - Part 1: Equipment Class, Re with LC connectors are defined as follows:

CLASS 1 LASER PRODUCT.

WARNING: Do not look directly into LC-style fiber connectors. The fiber-optic laser used in single-mode fiber (S M F) meets the regulatory requirements for casual exposure

WARNING: IEC 825, Class 1 laser fiber connectors are for connection only to Class 1 laser devices.

nce with EN60825-1, Safety of Laser Products - Part 1: Equipme nt

quirements, a n d User’s Guide (2001), single-mode I/O modules

to the eye; however, looking directly into a laser can cause eye damage.

SC Duplex

68 Cabling I/O Modules

Connectors

In accord

ance with EN60825-1, Safety of Laser Products - Part 1: Equipment Class, Requirements, and User’s Guide (2001), multimode I/O modules with SC connectors a re defined as follows:

Cabling ERX Routers

CLASS 1 LED PRODUCT.

In accordance with EN60825-1, Safety of Laser Products - Part 1: Equipment Class, Requir

ements, and User’s Guide (2001), single-mode I/O modules

with SC connectors a re defined as follows:

CLASS 1 LASER PRODUCT.

WARNING: Do not look directly into SC-style fiber connectors. The fiber-optic laser used in single-mode fiber (S M F) meets the regulatory requirements for casual exposure to th

e eye; however, looking directly into a laser can cause eye damage.

WARNING: IEC 825, Class 1 laser fiber connectors are for connection only to Class 1 laser devices.

SC duplex connectors have the same basic shape as LC duplex connectors, but are slight

ly larger. See Figure 33.

Cabling I/O Modules 69

ERX 8.0.x Hardware Guide

Figure 33: I/O Module with SC Full D uplex Connectors

OC3

I/O

Port 0

SMB Connectors

Port 1

g013759

To cable I/O modules with SMB connectors, pull back the metal sheath on the connec

tor, insert the connector into the selected port, and release the metal sheath.

70 Cabling I/O Modules

Figure 34: I/O Module with SMB Connectors

CT3/T3

I/O

Cabling ERX Routers

Port 0

g013760

X.21/V.35 Connectors

Four cables are available for the X.21/V.35 I/O modules:

Each 200-pin proprietary socket on the I/O module provides connections to 8 V.35 or X.21 ports. The remote en d of th e cable is terminated with either 8 X.21 connecto module determines whether the connection is X.21 or V.35 and DC E or DTE.

X.21DCEcable(terminatedwith8femaleX.21connectors)

X.21DTEcable(terminatedwith8maleX.21connectors)

V.35 DCE cable (terminated with 8 female V.35 connectors)

V.35 DTE cable (terminated with 8 male V.35 connectors)

rs or 8 V.35 connectors. The cable you attach to the port on the I/O

Cabling I/O Modules 71

ERX 8.0.x Hardware Guide

Figure 35: X.21/V.35 Module with 50-Pin X.21/V.35 Connector

X.21/V.35

I/O

Port 0

Redundant Ports

The Next Step

g013761

Some modules have redundant ports. See the ERX Module Guide for specifications. Cabling

both ports provides a redundant path to the module.

CAUTION: For port redundancy to operate correctly on a GE I/O module that supports

SFPs, both the primary and redundant ports on an E-series GE I/O module

must use the same type of SFP.

See “Powering Up ERX Routers” on p age 73.

72 The Next Step

Chapter 6

Powering Up E

This chapter describes how to power up an ERX router and determine whether it has booted p roperly. It contains the following sections:

Before You Power Up the System o n page 73

Powering Up

Status LEDs on page 75

Powering Down on page 75

The Next Ste

RX Routers

Before You Power Up the System

Before powering up the system, make sure you complete the following tasks. See the appropr

WARNING: Be sure the power source is turned off and the system is turned off before you p

iate chapters in th is guide for information about these tasks.

erform the installation tasks.

on page 73

p on page 75

Powering Up

“Installing SRP I/O and SRP Modules” on pa ge 41

“Installing Line and I/O Modules” on page 44

“Cabling the SRP I/O Module” on page 56

“Cabling the Router for Power” on page 60

“Cabling I/O Modules” on page 66

For specifications on the electrical requirements for the system, see “System Specifications” on page 119. For details on the power consumed by the different

ERX modules, see the ERX Module Guide.

Powering Up 73

ERX 8.0.x Hardware Guide

NOTE: In this procedure, we assume that the system is already connected to a power source. See “Cabling ERX Routers” on page 53.

CAUTION: Evalu

ate the overall loading of the branch circuit before you install

any equipment in to a rack.

To power up the s

1. Verify that the

2. Inspect all grounding and power connections to the router chassis.

3. Confirm that all connections are secure.

4. Switch the powe

5. Monitor the LEDs on the front of the SRP modules to verify that the system

is booting pro

ystem:

power source is operational and turned on.

rswitchestoON.

perly. S ee Table 12 in “Troubleshooting” on page 103 for LED

status explanations.

When the promp

t appears on the system console, the system is in User Exec

mode and is ready to be configured:

host1>

6. Enter the enable command to access Privileged Exec mode:

host1>enable host1#

Initializat

74 Powering Up

ion Sequence

In Privileged Exec mode you can begin to configure the system. See JUNOSe System Basics Configuration Guide, Chapter 2, Command-Line Interface for

more informa

Each line mod

tion.

ule is initialized independe ntly. As a result, the CLI on the SRP module can become available before the line modules have completed initialization. Commands relating to a line module might fail if the module has not completed initializa

tion. You can use the show version command to display line module

status. Do not enter commands for a line module until its state is listed as online.

Status LEDs

Powering Up ERX Routers

Upon initial power-up, the components of the router run boot code, go through a series of sel

f diagnostic tests, and synchronize with each other.

Powering Down

The Next Step

When the tes ts status of the router. Observe the line module and SRP module L EDs in the front, and the I/O line module and SRP I/O module LEDs in the rear.

See “Troubleshooting” on pa g e 103 for information on the system’s LEDs.

If you need to power down or remove the SRP module, first enter the halt command to temporarily suspend the system’s operation. See JUNO Se System

Basics Confi

CAUTION: Ifyoudonotusethehalt command before removing or powering down an SRP module

If you shut down the system improperly, it runs an investigation of the file allocat

If you have problems powering up the system, see “Troubleshooting” on page 103 for h

are complete, use the LEDs on each module to determine the

guration Guid e, Chapter 5, Managing the System for more information.

, the system’s NVS card might become corrupted.

ion table (FAT) the next time it reboots.

elp.

If the syste

m boots properly, see “Accessing ERX Routers” on page 77.

The Next Step 75

ERX 8.0.x Hardware Guide

76 The Next Step

Chapter 7

Accessing ER

This chapter discusses how to access the system to manage it. Managing your router includes both configuring and monitoring it. For basic information on the managem Chapter 5, Managing the System.

This chapter contains the following sections:

X Router s

ent of the system, see JUNOSe System Basics Configuration Guide,

Setting Up M

Console Port Setup on page 78

Telne t Set up on p age 80

SNMP on page

The Next Step on page 82

Setting Up Management Access

Before you power up the system, you must set up a management console. (See “Connecting to a Console Terminal” on page 60.) You use the console to communica andmanagethesystemusingthecommand-lineinterface(CLI).

te with the system during the power-up process, set an IP address,

anagement Access on page 77

You can manage and monitor the router through either of these methods:

Console terminal—Connect a console (PC, Macintosh, or UNIX workstation) directly to the system’s RS-232 serial port.

Remote console—Connect the 10/100Base-T port on the S RP I/O module to an Ethernet

For initi directly to the system’s RS-232 port. Through this co n ne c tio n you can use the CLI to set an IP address on the system. After you configure the IP address, you can ac

network, and run Telnet from a remote console.

al access to the system, you need to physically connect your console

cess the system remotely (for example, via Telnet).

Setting Up Management Access 77

ERX 8.0.x Hardware Guide

Console Port Setup

Using HyperTerminal

You can connect a console terminal (PC, Macin tosh, or UNIX workstation) directly to the SRP I/O m

odule via the RS-232 terminal port. When you connect a console

directly to the system, you can configure the system without an IP address.

To communicate with the system, you must have a terminal emulation program running on your PC or Macintosh. You can use any terminal emulation program, such as Hyper

Terminal. A UNIX workstation can use the emulator TIP.

If your console uses a version of Microsoft Windows (such as Windows 95 or Windows NT

4.0) that supports the HyperTerminal application, you

can access the system via HyperTerminal.

1. Click the Start b utton and select Programs, Accessories, and HyperTerminal.

Connecting

2. In the Hyper

3. In the Connection Description window, enter a name for your router (for

example, er

4. Select any icon to represent your terminal emulation, and click OK.

5. In the Con nect To dialog box, in the C onnect using field, select the appropriate

COM port to use (for example, COM1), and click OK.

6. In the COM1 Properties window, select th e following settings:

Bits per sec

Data bits: 8

Parity: Non

Stop bits: 1

Flow contro

7. Click OK.

Directly to the Router

Terminal window, select HyperTerminal.

x1400)intheNamefield.

ond: 9600

l: Xon/Xoff

78 Console Port Setup

When you co

nnectaconsoledirectlytothesystem,useacableappropriate for your terminal connector. The cable must have a f emale D B-9 conn ector to attach to the RS-232 port on the system.

The console port is considered a data terminal equipment interface (DTE). Dir

ect connection to a terminal or PC (which also have DTE

interfaces) requires a crossover cable.

To connect a console directly to the system:

1. ConnectthefemaleDB-9connectortotheRS-232portonthesystem’sSRP

I/O module. Se

Figure 36: Management Ports for ERX Routers

eFigure36.

Accessing ERX Routers

2. Connect the crossover adapter connector to your PC’s serial port.

3. Power up

the system.

When you power up the system, the CLI appears on your console’s screen. The syst

em is now in User Exec mode, and you can be gin configuration. For more information on using the CLI and configuring the system, see the JUNOSe System Basics Configuration Guide.

NOTE: Direct access through the RS-232 serial port enables you to monitor the system while it boots.

Console Port Setup 79

ERX 8.0.x Hardware Guide

Assigning an IP Address

When your console is ready to communicate with the system, power up the system. (See “Powerin system. The system powers up in User Exec mode. To assign an IP address:

1. Enter the enable command at the User Exec prompt.

g Up ERX Routers” on page 73.) Then set an IP address for the

host1>enable host1#

The system is now in Privileged Exec mode.

Telnet Setup

2. SetanIPaddre

ss on the Ethernet interface:

Substitute the slot number where the SRP module is located for the slotnumber va

riable. For redundant SRP modules, specify the lowest slot

number of the two (for example 0/0 or 6/0 ).

UseanIPaddressvalidforthesystem.

host1#configure terminal Enter configuration commands, one per line. End with CNTL/Z. host1(config)#interface FastEthernet slotnumber /0 host1(config-if)#ip address 10.10.7.3 255.255.255.0

3. Continue to configure the system’s parameters as needed.

After you have assigned an IP address to the system, you ca n communicate remotely by running Telnet over an Ethernet network. See “Telnet Setup” on page 80.

After you have configured an IP address for the system, you can run Telnet from a host to access the system through its Ethernet port. To connect the

1. Connect an E

Ethernet port to the network:

thernet cable (RJ-45) to the system’s 10/100Base-T (RJ-45) port on

the SRP I/O module.

80 Telnet Setup

2. Connect the

other end of the cable to the appropriate Ethernet network for

an ou t-of-band connection.

Before you c

an access the system with Telnet, you must either configure a password for Telnet ac cess or disable the password requirement from the management console. In the following example, you disab le the password.

1. Enter the enable command.

host1>ena host1#

ble

The system is now in Privileged Exec mode.

2. Enter the configure command.

Accessing ERX Routers

host1#config Enter configur host1(config)

ure terminal

ation commands, one per line. End w ith CNTL/Z.

The system is now in Global Configuration mode.

3. Enter the line command.

host1(config)#line vty 0 4 host1(config-line)#

The system is now in Line Configuration m ode.

4. Disable the pa

host1(config-line)#no login

ssword.

NOTE: In this example, you disabled the password requirement, but you can choose to set a password instead. See JUNOSe System Basics Configuration Guide, Chapter 8, Passwords and Security for information on setting a password.

5. Run Telnet from a host on the same Ethernet network as the system.

6. Enter the IP address of the system to open the Telnet session.

TheUserExecpromptappearswhentheTelnetsessiontothesystemis established.

host1>

7. Enter the enable command.

host1>enable host1#

The system is now in Privileged Exec mode.

8. Enter the configure command.

host1#configure terminal Enter configuration commands, one per line. End with CNTL/Z. host1(config)#

The system is now in Global Configuration mode, from which you can configure the system. S ee JUNOSe System Basics Configuration Guide, Chapter 2, Command-Line Interface.

Telnet Setup 81

ERX 8.0.x Hardware Guide

SNMP

CAUTION: D o not change the IP address for the Ethernet interface that you are using to commun Telnet session.

The system supports Simple Network Manageme nt Protocol (SNMP), astandardma the system as an SNMP agent.

As an SNMP agent, the system provides access to management information that it m aintains. See JUNOSe System Basics Configuration Guide, Chapter 4,

Configuring Guide A to M and JUNOSe Command Reference Guide N to Z for the commands

that are available for configuring the system as an SNMP agent.

icate with the system. If you change the address, you will lose the

nagement protocol for IP networks. You can configu re

SNMP for information on SNMP. See JUNOSe Command Reference

The Next Step

See “Maintaining ERX Routers” on page 85.

82 The Next Step

Juniper Networks ERX User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Audience

E-series Routers

Documentation Conventions

List of Technical Publications

Obtaining Documentation

Documentation Feedback

Requesting Suppor t

Product Overview

ERX Overview

Overview

ERX Routers

ERX-14xx Models

ERX-310 Router

ERX Modules 9

SRP Module

SRP I/O Module

Line Modules

I/O Modules

Network Management Tools

CLI Management

SNMP MIB Management

NMC-RX Device Management System

Redundancy Features

SRP Modules

Line Modules

Power

Fans

Initial Installation

Unpacking ERX-14xx Models

Unpacking ERX-7xx Models and ERX-310 Routers

If You Detect or Suspect Damage

The Next Step

Freestanding Installation

28 Rack-Mounted Installation

Safety Guidelines

Preparing the Equipment Racks

Installing the Router

The Next Step

Overview

Slot Groups

Combinations of Line Modules In Slot Groups

OC48 Line Modules

GE-2 Line Modules

Managing Modules Using the Software

Order of Installation

Required Tools and Safety Items

40 Safety Guidelines

Installing SRP I/O and SRP Modules

Installing an SRP I/O Module

Installing Line and I/O Modules

Removing a Line M odule, SRP Module, or SRP I/O Module

Installing Components for Line Module Redundancy

Installing the Redundancy Midplane

Verifying the Installation

Configuring Line Module Redundancy

The Next Step

Cabling Overview

Required Tools, Wires, and Cables

External Timing Ports

Management Ports

Cabling the Router for Power

Cabling I/O Modules

HSSI Connectors

RJ-45 Connectors

SMB Connectors

X.21/V.35 Connectors

Redundant Ports

The Next Step

Powering Up

Before You Power Up the System

Status LEDs

Powering Down

The Next Step

Setting Up Management Access

Console Port Setup

Using HyperTerminal