Juniper Networks ERX User Manual

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

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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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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

+ 153 hidden pages