Juniper E120 - RELEASE 11.1.X HARDWARE GUIDE 3-25-2010, E120, E320 Hardware Manual

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E Series™ Broadband Services Routers

E120 and E320 Hardware Guide

Release 11.1.x

Juniper Networks, Inc.

1194 North Mathilda Avenue

Sunnyvale, California 94089

USA

408-745-2000

www.juniper.net

Published: 2010-03-25

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Juniper Networks, the Juniper Networks logo, JUNOS, NetScreen, ScreenOS, and Steel-Belted Radius are registered trademarks of Juniper Networks, Inc. in the United States and other countries. JUNOSe is a trademark 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, modify, transfer, or otherwise revise this publication without notice.

Products made or sold by Juniper Networks or components thereof might be covered by one or more of the following patents that are owned by or licensed 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, 6,429,706, 6,459,579, 6,493,347, 6,538,518, 6,538,899, 6,552,918, 6,567,902, 6,578,186, and 6,590,785.

E Series™ Broadband Services Routers E120 and E320 Hardware Guide, Release 11.1.x

Writing: Subash Babu Asokan, John Borelli Editing: Ben Mann Illustration: John Borelli Cover Design: Edmonds Design

Revision History April 2010—FRS JUNOSe 11.1.x

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

SOFTWARE LICENSE

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

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END USER LICENSE AGREEMENT

READ THIS END USER LICENSE AGREEMENT (“AGREEMENT”) BEFORE DOWNLOADING, INSTALLING, OR USING THE SOFTWARE. BY DOWNLOADING, INSTALLING, OR USING THE SOFTWARE OR OTHERWISE EXPRESSING YOUR AGREEMENT TO THE TERMS CONTAINED HEREIN, YOU (AS CUSTOMER OR IF YOU ARE NOT THE CUSTOMER, AS A REPRESENTATIVE/AGENT AUTHORIZED TO BIND THE CUSTOMER) CONSENT TO BE BOUND BY THIS AGREEMENT. IF YOU DO NOT OR CANNOT AGREE TO THE TERMS CONTAINED HEREIN, THEN (A) DO NOT DOWNLOAD, INSTALL, OR USE THE SOFTWARE, AND (B) YOU MAY CONTACT JUNIPER NETWORKS REGARDING LICENSE TERMS.

1. The Parties. The parties to this Agreement are (i) Juniper Networks, Inc. (if the Customer’s principal office is located in the Americas) or Juniper Networks (Cayman) Limited (if the Customer’s principal office is located outside the Americas) (such applicable entity being referred to herein as “Juniper”), and (ii) the person or organization that originally purchased from Juniper or an authorized Juniper reseller the applicable license(s) for use of the Software (“Customer”) (collectively, the “Parties”).

2. The Software. In this Agreement, “Software” means the program modules and features of the Juniper or Juniper-supplied software, for which Customer has paid the applicable license or support fees to Juniper or an authorized Juniper reseller, or which was embedded by Juniper in equipment which Customer purchased from Juniper or an authorized Juniper reseller. “Software” also includes updates, upgrades and new releases of such software. “Embedded Software” means Software which Juniper has embedded in or loaded onto the Juniper equipment and any updates, upgrades, additions or replacements which are subsequently embedded in or loaded onto the equipment.

3. License Grant. Subject to payment of the applicable fees and the limitations and restrictions set forth herein, Juniper grants to Customer a non-exclusive and non-transferable license, without right to sublicense, to use the Software, in executable form only, subject to the following use restrictions:

a. Customer shall use Embedded Software solely as embedded in, and for execution on, Juniper equipment originally purchased by Customer from Juniper or an authorized Juniper reseller.

b. Customer shall use the Software on a single hardware chassis having a single processing unit, or as many chassis or processing units for which Customer has paid the applicable license fees; provided, however, with respect to the Steel-Belted Radius or Odyssey Access Client software only, Customer shall use such Software on a single computer containing a single physical random access memory space and containing any number of processors. Use of the Steel-Belted Radius or IMS AAA software on multiple computers or virtual machines (e.g., Solaris zones) requires multiple licenses, regardless of whether such computers or virtualizations are physically contained on a single chassis.

c. Product purchase documents, paper or electronic user documentation, and/or the particular licenses purchased by Customer may specify limits to Customer’s use of the Software. Such limits may restrict use to a maximum number of seats, registered endpoints, concurrent users, sessions, calls, connections, subscribers, clusters, nodes, realms, devices, links, ports or transactions, or require the purchase of separate licenses to use particular features, functionalities, services, applications, operations, or capabilities, or provide throughput, performance, configuration, bandwidth, interface, processing, temporal, or geographical limits. In addition, such limits may restrict the use of the Software to managing certain kinds of networks or require the Software to be used only in conjunction with other specific Software. Customer’s use of the Software shall be subject to all such limitations and purchase of all applicable licenses.

d. For any trial copy of the Software, Customer’s right to use the Software expires 30 days after download, installation or use of the Software. Customer may operate the Software after the 30-day trial period only if Customer pays for a license to do so. Customer may not extend or create an additional trial period by re-installing the Software after the 30-day trial period.

e. The Global Enterprise Edition of the Steel-Belted Radius software may be used by Customer only to manage access to Customer’s enterprise network. Specifically, service provider customers are expressly prohibited from using the Global Enterprise Edition of the Steel-Belted Radius software to support any commercial network access services.

The foregoing license is not transferable or assignable by Customer. No license is granted herein to any user who did not originally purchase the applicable license(s) for the Software from Juniper or an authorized Juniper reseller.

4. Use Prohibitions. Notwithstanding the foregoing, the license provided herein does not permit the Customer to, and Customer agrees not to and shall not: (a) modify, unbundle, reverse engineer, or create derivative works based on the Software; (b) make unauthorized copies of the Software (except as necessary for backup purposes); (c) rent, sell, transfer, or grant any rights in and to any copy of the Software, in any form, to any third party; (d) remove any proprietary notices, labels, or marks on or in any copy of the Software or any product in which the Software is embedded; (e) distribute any copy of the Software to any third party, including as may be embedded in Juniper equipment sold in the secondhand market; (f) use any ‘locked’ or key-restricted feature, function, service, application, operation, or capability without first purchasing the applicable license(s) and obtaining a valid key from Juniper, even if such feature, function, service, application, operation, or capability is enabled without a key; (g) distribute any key for the Software provided by Juniper to any third party; (h) use the Software in any manner that extends or is broader than the uses purchased by Customer from Juniper or an authorized Juniper reseller; (i) use Embedded Software on non-Juniper equipment; (j) use Embedded Software (or make it available for use) on Juniper equipment that the Customer did not originally purchase from Juniper or an authorized Juniper reseller; (k) disclose the results of testing or benchmarking of the Software to any third party without the prior written consent of Juniper; or (l) use the Software in any manner other than as expressly provided herein.

5. Audit. Customer shall maintain accurate records as necessary to verify compliance with this Agreement. Upon request by Juniper, Customer shall furnish such records to Juniper and certify its compliance with this Agreement.

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6. Confidentiality. The Parties agree that aspects of the Software and associated documentation are the confidential property of Juniper. As such, Customer shall exercise all reasonable commercial efforts to maintain the Software and associated documentation in confidence, which at a minimum includes restricting access to the Software to Customer employees and contractors having a need to use the Software for Customer’s internal business purposes.

7. Ownership. Juniper and Juniper’s licensors, respectively, retain ownership of all right, title, and interest (including copyright) in and to the Software, associated documentation, and all copies of the Software. Nothing in this Agreement constitutes a transfer or conveyance of any right, title, or interest in the Software or associated documentation, or a sale of the Software, associated documentation, or copies of the Software.

8. Warranty, Limitation of Liability, Disclaimer of Warranty. The warranty applicable to the Software shall be as set forth in the warranty statement that accompanies the Software (the “Warranty Statement”). Nothing in this Agreement shall give rise to any obligation to support the Software. Support services may be purchased separately. Any such support shall be governed by a separate, written support services agreement. TO THE MAXIMUM EXTENT PERMITTED BY LAW, JUNIPER SHALL NOT BE LIABLE FOR ANY LOST PROFITS, LOSS OF DATA, OR COSTS OR PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, THE SOFTWARE, OR ANY JUNIPER OR JUNIPER-SUPPLIED SOFTWARE. IN NO EVENT SHALL JUNIPER BE LIABLE FOR DAMAGES ARISING FROM UNAUTHORIZED OR IMPROPER USE OF ANY JUNIPER OR JUNIPER-SUPPLIED SOFTWARE. EXCEPT AS EXPRESSLY PROVIDED IN THE WARRANTY STATEMENT TO THE EXTENT PERMITTED BY LAW, JUNIPER DISCLAIMS ANY AND ALL WARRANTIES IN AND TO THE SOFTWARE (WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE), INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NONINFRINGEMENT. IN NO EVENT DOES JUNIPER WARRANT THAT THE SOFTWARE, OR ANY EQUIPMENT OR NETWORK RUNNING THE SOFTWARE, WILL OPERATE WITHOUT ERROR OR INTERRUPTION, OR WILL BE FREE OF VULNERABILITY TO INTRUSION OR ATTACK. In no event shall Juniper’s or its suppliers’ or licensors’ liability to Customer, whether in contract, tort (including negligence), breach of warranty, or otherwise, exceed the price paid by Customer for the Software that gave rise to the claim, or if the Software is embedded in another Juniper product, the price paid by Customer for such other product. Customer acknowledges and agrees that Juniper has set its prices and entered into this Agreement in reliance upon the disclaimers of warranty and the limitations of liability set forth herein, that the same reflect an allocation of risk between the Parties (including the risk that a contract remedy may fail of its essential purpose and cause consequential loss), and that the same form an essential basis of the bargain between the Parties.

9. Termination. Any breach of this Agreement or failure by Customer to pay any applicable fees due shall result in automatic termination of the license granted herein. Upon such termination, Customer shall destroy or return to Juniper all copies of the Software and related documentation in Customer’s possession or control.

10. Taxes. All license fees payable under this agreement are exclusive of tax. Customer shall be responsible for paying Taxes arising from the purchase of the license, or importation or use of the Software. If applicable, valid exemption documentation for each taxing jurisdiction shall be provided to Juniper prior to invoicing, and Customer shall promptly notify Juniper if their exemption is revoked or modified. All payments made by Customer shall be net of any applicable withholding tax. Customer will provide reasonable assistance to Juniper in connection with such withholding taxes by promptly: providing Juniper with valid tax receipts and other required documentation showing Customer’s payment of any withholding taxes; completing appropriate applications that would reduce the amount of withholding tax to be paid; and notifying and assisting Juniper in any audit or tax proceeding related to transactions hereunder. Customer shall comply with all applicable tax laws and regulations, and Customer will promptly pay or reimburse Juniper for all costs and damages related to any liability incurred by Juniper as a result of Customer’s non-compliance or delay with its responsibilities herein. Customer’s obligations under this Section shall survive termination or expiration of this Agreement.

11. Export. Customer agrees to comply with all applicable export laws and restrictions and regulations of any United States and any applicable foreign agency or authority, and not to export or re-export the Software or any direct product thereof in violation of any such restrictions, laws or regulations, or without all necessary approvals. Customer shall be liable for any such violations. The version of the Software supplied to Customer may contain encryption or other capabilities restricting Customer’s ability to export the Software without an export license.

12. Commercial Computer Software. The Software is “commercial computer software” and is provided with restricted rights. Use, duplication, or disclosure by the United States government is subject to restrictions set forth in this Agreement and as provided in DFARS 227.7201 through 227.7202-4, FAR 12.212, FAR 27.405(b)(2), FAR 52.227-19, or FAR 52.227-14(ALT III) as applicable.

13. Interface Information. To the extent required by applicable law, and at Customer's written request, Juniper shall provide Customer with the interface information needed to achieve interoperability between the Software and another independently created program, on payment of applicable fee, if any. Customer shall observe strict obligations of confidentiality with respect to such information and shall use such information in compliance with any applicable terms and conditions upon which Juniper makes such information available.

14. Third Party Software. Any licensor of Juniper whose software is embedded in the Software and any supplier of Juniper whose products or technology are embedded in (or services are accessed by) the Software shall be a third party beneficiary with respect to this Agreement, and such licensor or vendor shall have the right to enforce this Agreement in its own name as if it were Juniper. In addition, certain third party software may be provided with the Software and is subject to the accompanying license(s), if any, of its respective owner(s). To the extent portions of the Software are distributed under and subject to open source licenses obligating Juniper to make the source code for such portions publicly available (such as the GNU General Public License (“GPL”) or the GNU Library General Public License (“LGPL”)), Juniper will make such source code portions (including Juniper modifications, as appropriate) available upon request for a period of up to three years from the date of distribution. Such request can be made in writing to Juniper Networks, Inc., 1194

N. Mathilda Ave., Sunnyvale, CA 94089, ATTN: General Counsel. You may obtain a copy of the GPL at http://www.gnu.org/licenses/gpl.html, and a copy of the LGPL at http://www.gnu.org/licenses/lgpl.html.

15. Miscellaneous. This Agreement shall be governed by the laws of the State of California without reference to its conflicts of laws principles. The provisions of the U.N. Convention for the International Sale of Goods shall not apply to this Agreement. For any disputes arising under this Agreement, the Parties hereby consent to the personal and exclusive jurisdiction of, and venue in, the state and federal courts within Santa Clara County, California. This Agreement constitutes the entire and sole agreement between Juniper and the Customer with respect to the Software, and supersedes all prior and contemporaneous

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agreements relating to the Software, whether oral or written (including any inconsistent terms contained in a purchase order), except that the terms of a separate written agreement executed by an authorized Juniper representative and Customer shall govern to the extent such terms are inconsistent or conflict with terms contained herein. No modification to this Agreement nor any waiver of any rights hereunder shall be effective unless expressly assented to in writing by the party to be charged. If any portion of this Agreement is held invalid, the Parties agree that such invalidity shall not affect the validity of the remainder of this Agreement. This Agreement and associated documentation has been written in the English language, and the Parties agree that the English version will govern. (For Canada: Les parties aux présentés confirment leur volonté que cette convention de même que tous les documents y compris tout avis qui s'y rattaché, soient redigés en langue anglaise. (Translation: The parties confirm that this Agreement and all related documentation is and will be in the English language)).

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Table of Contents

About the Documentation xiii

E Series and JUNOSe Documentation and Release Notes ..............................xiii

Audience ......................................................................................................xiii

E Series and JUNOSe Text and Syntax Conventions ......................................xiii

Obtaining Documentation .............................................................................xv

Documentation Feedback ..............................................................................xv

Requesting Technical Support ........................................................................xv

Self-Help Online Tools and Resources ....................................................xvi

Opening a Case with JTAC ......................................................................xvi

Part 1 Product Overview

Chapter 1 E120 and E320 Overview 3

System Description .........................................................................................3

Chassis Overview ............................................................................................3

E320 Model ..............................................................................................4

E120 Model ..............................................................................................6

E120 and E320 Modules ..................................................................................7

SRP Module ..............................................................................................7

Module Details ....................................................................................8

Nonvolatile Storage ............................................................................9

SFM Module ..............................................................................................9

Fabric Slices .....................................................................................10

SRP IOA ..................................................................................................10

Module Details ..................................................................................10

Line Modules ..........................................................................................11

Packet Classification .........................................................................12

I/O Adapters ...........................................................................................12

Network Management Tools ..........................................................................13

CLI Management .....................................................................................13

SNMP MIB Management .........................................................................13

Redundancy Features ....................................................................................14

SRP Modules ...........................................................................................14

NVS Cards ........................................................................................14

Power .....................................................................................................14

Fans ........................................................................................................14

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E120 and E320 11.1.x Hardware Guide

Part 2 Initial Installation

Chapter 2 Unpacking and Inspecting the Router 19

Before You Begin ...........................................................................................19

Unpacking the Router ....................................................................................19

Inspecting Router Components and Accessories ...........................................20

If You Detect or Suspect Damage ..................................................................21

Contacting Juniper Networks .........................................................................21

The Next Step ................................................................................................21

Chapter 3 Installing the Router 23

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

Freestanding Installation ...............................................................................23

Rack-Mounted Installation .............................................................................25

Installation Guidelines .............................................................................25

Preparing the Equipment Racks ..............................................................26

Installing the Router ................................................................................26

The Next Step ................................................................................................26

Chapter 4 Installing Modules 27

Overview .......................................................................................................27

Slot Numbering .......................................................................................30

IOA Slot Combinations ............................................................................32

Module Combinations .............................................................................34

IOAs Requiring SFPs ...............................................................................35

Proper Handling of ES2 4G LMs ..............................................................35

ES2 10G Uplink Line Modules .................................................................36

Managing Modules Using the Software ...................................................36

Order of Installation ................................................................................36

Hot-Swapping Modules ...........................................................................37

Protecting Modules and Slots ..................................................................37

Required Tools and Safety Items .............................................................38

Safety Guidelines ...........................................................................................38

Installing an SRP Module or SFM Module ......................................................38

Installing an IOA Shelf ...................................................................................40

Installing a Line Module or an IOA ................................................................41

Removing Modules and IOAs ........................................................................42

Installing and Removing SFPs .......................................................................44

Installing SFPs .........................................................................................44

Removing SFPs .......................................................................................45

The Next Step ................................................................................................46

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Chapter 5 Cabling the Router 47

Cabling Overview ..........................................................................................47

Required Tools, Wires, and Cables ................................................................48

Cabling the SRP IOA ......................................................................................49

Network Timing Ports .............................................................................50

Management Ports ..................................................................................51

Connecting to the Network ...............................................................51

Connecting to a Console Terminal ....................................................51

Cabling IOAs .................................................................................................51

LC Duplex Connectors ............................................................................52

SFPs ........................................................................................................52

Cabling the Router for Power ........................................................................52

Task 1: Turn Off All Router Power ..........................................................54

Task 2: Connect the Grounding Cables ....................................................54

Task 3: Connect the Power Cables ..........................................................55

The Next Step ................................................................................................56

Chapter 6 Powering Up the Router 57

Before You Power Up the System ..................................................................57

Powering Up .................................................................................................57

Initialization Sequence ............................................................................58

Status LEDs ...................................................................................................58

Powering Down .............................................................................................59

The Next Step ................................................................................................59

Chapter 7 Accessing E Series Routers 61

Setting Up Management Access .....................................................................61

Console Port Setup ........................................................................................61

Using HyperTerminal ..............................................................................62

Connecting Directly to the Router ...........................................................62

Assigning an IP Address ..........................................................................63

Telnet Setup ..................................................................................................64

SNMP ............................................................................................................65

The Next Step ................................................................................................66

Part 3 Hardware Maintenance, Replacement, and Troubleshooting

Procedures

Chapter 8 Maintaining the Router 69

Required Tools and Items ..............................................................................69

Storing Modules and Components .................................................................69

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E120 and E320 11.1.x Hardware Guide

Cleaning the System ......................................................................................70

Upgrading NVS Cards on SRP Modules ..........................................................70

Upgrading a System That Contains One SRP Module ..............................71

Upgrading a System That Contains Two SRP Modules ............................71

Replacing an NVS Card ..................................................................................72

Replacing Fan Trays ......................................................................................73

Removing an E320 Fan Tray ...................................................................74

Installing an E320 Fan Tray ....................................................................74

Installing an Air Filter ....................................................................................75

Replacing a Power Distribution Unit ..............................................................76

Chapter 9 Troubleshooting 79

Diagnosing Problems ....................................................................................79

Initialization Sequence ............................................................................79

Troubleshooting Power Failures ....................................................................80

Understanding Status LEDs to Troubleshoot ..................................................80

LED Identification ...................................................................................80

LED Activity ............................................................................................83

Monitoring Temperatures of Modules ............................................................85

Resetting Line Modules and SRP Modules .....................................................86

Double-Bit Errors on SRP Modules .................................................................86

Detecting Double-Bit Errors ....................................................................87

Fixing Double-Bit Errors ..........................................................................87

Part 4 Appendixes

Appendix A System Specifications 91

E120 Broadband Services Router Specifications ............................................91

E320 Broadband Services Router Specifications ............................................93

Router Power Requirements .........................................................................94

Appendix B Installation Guidelines and Requirements 97

Your Preinstallation Responsibilities ..............................................................97

Environmental Requirements ........................................................................97

Regulatory Compliances ................................................................................98

Safety Guidelines ...........................................................................................98

Equipment Rack Requirements .....................................................................99

Mechanical Requirements .......................................................................99

Space Requirements .............................................................................100

Proper Rack Installation ........................................................................100

Cabling Recommendations ..........................................................................101

Product Reclamation and Recycling Program ..............................................102

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Hardware Compliance .................................................................................103

Federal Communications Commission (FCC) Statement .......................103

FCC Requirements for Consumer Products ...........................................104

Food and Drug Administration, Center for Devices and Radiological

Health ............................................................................................104

Canadian Department of Communications Radio Interference

Regulations .....................................................................................104

Réglement sur le brouillage radioélectrique du ministère des

communications .............................................................................104

Industry Canada Notice CS-03 ..............................................................104

Avis CS-03 d'Industrie Canada ..............................................................105

D.O.C. Explanatory Notes: Equipment Attachment Limitations ............106

Notes explicatives du ministère des Communications: limites visant les

accessoires .....................................................................................106

EC Declaration of Conformity ...............................................................107

Voluntary Control Council for Interference (VCCI) Statement for

Japan ..............................................................................................107

Appendix C Cable Pinouts 109

SRP IOA ......................................................................................................109

Appendix D Contacting Customer Support and Returning Hardware 113

Contacting Customer Support ......................................................................113

Return Procedure ........................................................................................113

Locating Component Serial Numbers ..........................................................114

Information You Might Need to Supply to JTAC ...........................................115

Tools and Parts Required ............................................................................116

Returning Products for Repair or Replacement ...........................................116

Packing Instructions for Returning a Chassis .........................................116

Appendix E Declaration of Conformity 119

Declaration of Conformity – E120 Broadband Services Router ....................119

Declaration of Conformity – E320 Broadband Services Router ....................120

Part 5 Index

Index ...........................................................................................................123

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E120 and E320 11.1.x Hardware Guide

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About the Documentation

■ E Series and JUNOSe Documentation and Release Notes on page xiii

■ Audience on page xiii

■ E Series and JUNOSe Text and Syntax Conventions on page xiii

■ Obtaining Documentation on page xv

■ Documentation Feedback on page xv

■ Requesting Technical Support on page xv

E Series and JUNOSe Documentation and Release Notes

For a list of related JUNOSe documentation, see

http://www.juniper.net/techpubs/software/index.html .

If the information in the latest release notes differs from the information in the documentation, follow the JUNOSe Release Notes.

To obtain the most current version of all Juniper Networks® technical documentation, see the product documentation page on the Juniper Networks website at

http://www.juniper.net/techpubs/.

Audience

This guide is intended for experienced system and network specialists working with Juniper Networks E Series Broadband Services Routers in an Internet access environment.

E Series and JUNOSe Text and Syntax Conventions

Table 1 on page xiv defines notice icons used in this documentation.

E Series and JUNOSe Documentation and Release Notes ■ xiii

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E120 and E320 11.1.x Hardware Guide

Table 1: Notice Icons

Table 2 on page xiv defines text and syntax conventions that we use throughout the E Series and JUNOSe documentation.

DescriptionMeaningIcon

Indicates important features or instructions.Informational note

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

Alerts you to the risk of personal injury or death.Warning

Alerts you to the risk of personal injury from a laser.Laser warning

Table 2: Text and Syntax Conventions

Represents commands and keywords in text.Bold text like this

Bold text like this

Fixed-width text like this

Represents text that the user must type.

Represents information as displayed on your terminal’s screen.

Italic text like this

Emphasizes words.

■

Identifies variables.

■

Identifies chapter, appendix, and book

■

names.

Plus sign (+) linking key names

keys simultaneously.

Syntax Conventions in the Command Reference Guide

ExamplesDescriptionConvention

Issue the clock source command.

■

Specify the keyword exp-msg.

■

host1(config)#traffic class low-loss1

host1#show ip ospf 2

Routing Process OSPF 2 with Router ID 5.5.0.250 Router is an Area Border Router (ABR)

There are two levels of access: user and

■

privileged.

clusterId, ipAddress.

■

Appendix A, System Specifications

■

Press Ctrl + b.Indicates that you must press two or more

terminal lengthRepresents keywords.Plain text like this

| (pipe symbol)

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mask, accessListNameRepresents variables.Italic text like this

diagnostic | lineRepresents a choice to select one keyword or variable to the left or to the right of this symbol. (The keyword or variable can be either optional or required.)

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Table 2: Text and Syntax Conventions (continued)

About the Documentation

ExamplesDescriptionConvention

[ internal | external ]Represent optional keywords or variables.[ ] (brackets)

[ ]* (brackets and asterisk)

that can be entered more than once.

Represent required keywords or variables.{ } (braces)

Obtaining Documentation

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

http://www.juniper.net/.

To download complete sets of technical documentation to create your own documentation CD-ROMs or DVD-ROMs, see the Offline Documentation page at

http://www.juniper.net/techpubs/resources/cdrom.html

Copies of the Management Information Bases (MIBs) for a particular software release are available for download in the software image bundle from the Juniper Networks Web site athttp://www.juniper.net/.

Documentation Feedback

[ level1 | level2 | l1 ]*Represent optional keywords or variables

{ permit | deny } { in | out }

{ clusterId | ipAddress }

We encourage you to provide feedback, comments, and suggestions so that we can improve the documentation to better meet your needs. Send your comments to

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

https://www.juniper.net/cgi-bin/docbugreport/. If you are using e-mail, be sure to include

the following information with your comments:

■ Document or topic name

■ URL or page number

■ Software release version

Requesting Technical Support

Technical product support is available through the Juniper Networks Technical Assistance Center (JTAC). If you are a customer with an active J-Care or JNASC support contract, or are covered under warranty, and need post-sales technical support, you can access our tools and resources online or open a case with JTAC.

■ JTAC policies—For a complete understanding of our JTAC procedures and policies,

review the JTAC User Guide located at

http://www.juniper.net/customers/support/downloads/7100059-EN.pdf .

Obtaining Documentation ■ xv

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E120 and E320 11.1.x Hardware Guide

■ Product warranties—For product warranty information, visit

http://www.juniper.net/support/warranty/ .

■ JTAC hours of operation—The JTAC centers have resources available 24 hours a

day, 7 days a week, 365 days a year.

Self-Help Online Tools and Resources

For quick and easy problem resolution, Juniper Networks has designed an online self-service portal called the Customer Support Center (CSC) that provides you with the following features:

■

Find CSC offerings: http://www.juniper.net/customers/support/

■

Search for known bugs: http://www2.juniper.net/kb/

■

Find product documentation: http://www.juniper.net/techpubs/

■ Find solutions and answer questions using our Knowledge Base:

http://kb.juniper.net/

■ Download the latest versions of software and review release notes:

http://www.juniper.net/customers/csc/software/

■ Search technical bulletins for relevant hardware and software notifications:

https://www.juniper.net/alerts/

■ Join and participate in the Juniper Networks Community Forum:

http://www.juniper.net/company/communities/

■

Open a case online in the CSC Case Management tool: http://www.juniper.net/cm/

To verify service entitlement by product serial number, use our Serial Number Entitlement (SNE) Tool: https://tools.juniper.net/SerialNumberEntitlementSearch/

Opening a Case with JTAC

You can open a case with JTAC on the Web or by telephone.

■

Use the Case Management tool in the CSC at http://www.juniper.net/cm/ .

■ Call 1-888-314-JTAC (1-888-314-5822 toll-free in the USA, Canada, and Mexico).

For international or direct-dial options in countries without toll-free numbers, see

http://www.juniper.net/support/requesting support.html .

xvi ■ Requesting Technical Support

Page 17

Part 1

Product Overview

■ E120 and E320 Overview on page 3

Product Overview ■ 1

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E120 and E320 11.1.x Hardware Guide

2 ■ Product Overview

Page 19

Chapter 1

E120 and E320 Overview

This chapter provides introductory information about the Juniper Networks E120 and E320 Broadband Services Routers. It contains the following sections:

■ System Description on page 3

■ Chassis Overview on page 3

■ E120 and E320 Modules on page 7

■ Network Management Tools on page 13

■ Redundancy Features on page 14

System Description

E Series routers are modular, carrier-class networking devices that deliver performance, reliability, and service differentiation to both enterprise and residential Internet users. The E120 router and E320 router are next-generation, high-capacity additions to the E Series product family offering high-port density and high bandwidth in a fully redundant system, supporting evolving IP-based broadband services. The E120 router supports the same services as the E320 router, but with smaller capacity and scaling capabilities for smaller configurations.

Chassis Overview

The routers utilize the same JUNOSe™ software architecture and provide a single IP entry point into the service provider network with the same IP-based protocols and services that are available on existing E Series products. They address a wide range of edge applications, including subscriber management (including 802.11 hotspots), video on demand, Voice over IP (VoIP), Metro Ethernet, customer circuit aggregation, virtual private networks (VPNs), and wholesale services.

E Series routers offer the complete edge solution for IP-optimized carriers.

Two models are available:

■ E120 router

■ E320 router

Both models use the same software and share a system architecture and common components:

System Description ■ 3

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E120 and E320 11.1.x Hardware Guide

■ Switch route processors (SRPs)—Perform system management, routing table

calculations maintenance, forwarding table computations, and other control plane functions

■ Switch fabric modules (SFMs)—Create a distributed shared memory switching

fabric

■ Line modules (LMs)—Are frame processing and forwarding engines for IOAs

■ Input/output adapter (IOA)—Provide the physical connection to the network via

10–Gigabit Ethernet, Ethernet, ATM, and Packet over SONET (PoS) interfaces

■ Power modules—Distribute redundant power feeds through the system to all

components

E320 Model

A fully configured E320 router consists of 2 switch route processors (SRPs), 3 switch fabric modules (SFMs), 12 line modules, and up to 2 I/O adapters (IOAs) per line module. See Figure 1 on page 5 and Figure 2 on page 5.

An IOA shelf (bracket) can be installed on a slot-by-slot basis to create an upper IOA bay and lower IOA bay, enabling you to use up to two IOAs in the same slot. This architecture enables you to combine different IOA types in the same slot and to support oversubscribed configurations.

NOTE: The routers illustrated in this book might look different than your router due to configuration variations.

4 ■ Chassis Overview

Page 21

Figure 1: E320 Router, Front View

Chapter 1: E120 and E320 Overview

Figure 2: E320 Router, Rear View

Chassis Overview ■ 5

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E120 and E320 11.1.x Hardware Guide

E120 Model

A fully configured E120 router consists of 2 switch route processors (SRPs), 3 switch fabric modules (SFMs), 6 line modules, and up to 2 I/O adapters (IOAs) per line module. See Figure 3 on page 6 and Figure 4 on page 7.

An IOA shelf (bracket) can be installed on a slot-by-slot basis to create a left and right IOA bay, enabling you to use up to two IOAs in the same slot. This architecture enables you to combine different IOA types in the same slot and to support oversubscribed configurations. Air is pulled in from the right of the router by the fan tray and is exhausted out the left side.

NOTE: The routers illustrated in this book might look different than your router due to configuration variations.

Figure 3: E120 Router, Front View

6 ■ Chassis Overview

Page 23

Figure 4: E120 Router, Rear View

Chapter 1: E120 and E320 Overview

E120 and E320 Modules

The routers support SRP modules, SFM modules, line modules, and IOAs. You can use a line module for access or uplink. Access line modules receive traffic from low-speed circuits, and the system routes the traffic onto higher-speed uplink line modules and then to the core of the network. Line modules act as frame forwarding engines for the physical interfaces (the IOAs) via a passive midplane.

Most line modules, IOAs, SFMs, and SRP modules can be installed in either router. There are a few exceptions, however:

■ Similar-capacity modules must be used in the same router. For example, you

cannot install an SRP-100 in a router that contains an SFM-320. You can only use a SRP–100 module with a SFM-100 module.

■ Higher-capacity SRP modules can be used in lower-capacity routers, but

lower-capacity SRP modules cannot be used in high-capacity routers. For example, an SRP-320 can be used in an E120 router, but an SRP-120 cannot be used in an E320 router.

■ The SRP-100 module and the SFM-100 module are not supported in the E120

router.

See the E120 and E320 Module Guide for module and chassis compatibility.

The front panel of each module contains a collection of status LEDs (light-emitting diodes). For information about how to interpret the LEDs, see “Troubleshooting” on page 79. For complete module specifications, see the E120 and E320 Module Guide.

SRP Module

Switch route processor (SRP) modules perform system management, routing table calculations and maintenance, forwarding table computations, statistics processing, configuration storage, and other control plane functions. The SRP module identifies

E120 and E320 Modules ■ 7

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E120 and E320 11.1.x Hardware Guide

which line modules are physically present in the chassis and monitors and controls vital functions on the line modules.

Each SRP module (Figure 5 on page 8) is a PowerPC-based system with its own memory, nonvolatile storage (NVS), and power converter. The SRP module works with the SFM modules and contains a switch fabric slice common to both modules. See “Fabric Slices” on page 10 for more information.

NOTE: Because of different physical dimensions and switch fabric capabilities, SRP modules are not interchangeable between all routers. For example, the SRP–100 used in the E320 router cannot be used in other E Series routers, and vice versa. See the E120 and E320 Module Guide for SRP module compatibility.

Figure 5: Representative SRP Module

Module Details

An SRP module must be present for the router to boot. The routers support up to two redundant SRP modules operating in an active/standby configuration. The redundant SRP module takes control when a failover occurs. See “Redundancy Features” on page 14 and the E120 and E320 Module Guide for more SRP module information.

CAUTION: Do not remove the SRP module while the system is running, unless you have properly issued the halt command. See JUNOSe System Basics Configuration Guide, Chapter 6, Managing Modules for information about the halt commands.

8 ■ E120 and E320 Modules

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Chapter 1: E120 and E320 Overview

NOTE: You cannot use SRP modules of different capacities in the same configuration. For example, you cannot install a SRP-100 module and a SRP-320 module in the same router.

For details about installing SRP modules, see “Installing Modules” on page 27.

Nonvolatile Storage

Depending on the model, each SRP module has either two Type II PCMCIA nonvolatile storage (NVS) cards or two ATA flash cards (0, 1). (See Figure 5 on page 8.) One card is loaded with the system's software and configuration files while the other card holds core dumps. The NVS cards in the active SRP module are designated disk0 and disk1. The NVS cards in the redundant SRP module are designated standby-disk0 and standby-disk1. The PCMCIA card is factory installed.

SFM Module

CAUTION: Before you insert or remove flash cards from a running router, we strongly recommend that you halt the SRP module or shut down the router. Failure to do this can result in file corruption in one or both cards. See “Replacing an NVS Card” on page 72 for more information.

The switch fabric modules (SFMs) work with the SRP module to create a shared memory fabric for the router. Each SFM module (Figure 6 on page 9) has its own memory and power converter. Like the SRP module, the SFM module contains a fabric system processor board (slice). See “Fabric Slices” on page 10.

NOTE: You must use a SRP module that corresponds with the fabric type (SFM module) that is installed. For example, you can only use a SRP–100 module with a SFM-100 module. You cannot use a SRP–100 module with a SFM-320 module.

Figure 6: SFM Module

E120 and E320 Modules ■ 9

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E120 and E320 11.1.x Hardware Guide

Fabric Slices

The router's switch fabric is distributed across two SRP modules and three SFM modules. Each module has a fabric slice on it. For the router to operate, at least four of the five slices must be operational.

When all five modules are installed, the fabric slice of the standby SRP acts as a redundant module. For example, the router can operate with:

■ Two SRP modules (the second of which is redundant) and three SFM modules

■ One SRP module (non-redundant) and three SFM modules

■ Two SRP modules and two SFM modules

NOTE: You cannot use SFM modules of different capacities in the same configuration. For example, you cannot install a SFM-100 module and a SFM-320 module in the same router.

SRP IOA

The SRP I/O adapter (IOA) is a single input/output adapter that interfaces with the SRP modules through the system's midplane. See Figure 2 on page 5 and Figure 4 on page 7 for its location.

Module Details

The SRP IOA provides standard management interfaces, including:

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

functions through Telnet, Secure Shell Server (SSH), command-line interface (CLI), or Simple Network Management Protocol (SNMP), for example.

■ RS-232—One port (console) provides a serial connection for monitoring the

system's hardware configuration through a PC (running terminal emulation software) or ASCII terminal and enables direct CLI access. The second port (auxiliary) provides access to debug ports on specific processors (SRP module, line module). Juniper Networks customer support engineers use the auxiliary port. We recommend that users do not use the auxiliary port.

■ External timing inputs—The BNC connectors provide a method of ensuring that

the clock timing used by the router remains synchronized with the network's system clock.

You can hot-swap SRP IOAs. Hot-swapping enables you to add or remove SRP IOAs without powering down the system. When you complete hot-swapping an SRP IOA, its MAC address in the subnet is automatically refreshed without rebooting the SRP or the chassis. Also, you can re-insert an SRP IOA that you had taken out previously to the same network without refreshing the MAC address of the SRP IOA.

10 ■ E120 and E320 Modules

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Chapter 1: E120 and E320 Overview

NOTE: Hot-swapping an SRP IOA is unsupported during a unified in-service software upgrade (ISSU).

If you have configured RADIUS server on an SRP IOA that you want to replace, you can perform either of the following actions to prevent loss of accounting or logout information:

■ Disable accounting and, when there is no subscriber login or logout activity,

hot-swap SRP IOA.

■ Increase the timeout value of the RADIUS server configured depending on the

time used for IOA replacement. The maximum timeout value is 1000 seconds.

After you complete hot-swapping the SRP IOA, you can use the show version all command to display the state of the SRP IOA.

The SRP IOA hot-swapping is supported on the following routers:

Line Modules

■ E320 router with SRP-100 or SRP-320

■ E120 router

NOTE: You must complete the hot-swapping of the SRP IOA within 1800 seconds.

For details about installing the SRP IOA, see “Installing Modules” on page 27.

Line modules (LMs) act as frame forwarding engines for the physical interfaces (the IOAs) and process data from different types of network connections. For information about available line modules, and which SRP modules support specific line modules, see the E120 and E320 Module Guide.

Figure 7 on page 12 shows a representative line module. For details about installing line modules, see “Installing Modules” on page 27.

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E120 and E320 11.1.x Hardware Guide

Figure 7: Representative Line Module

I/O Adapters

Packet Classification

The line module supports packet classification on ingress. A classification engine on the line module matches specific fields (such as source and destination IP address, source and destination port, and protocol), the ingress IP interface, layer 2 fields, or some combination of these against user-configured filters at wire speed.

Most input/output adapters (IOA) provide the physical interconnection to the network via small form-factor pluggable transceivers (SFPs). You insert each IOA into the passive midplane in the rear of the chassis, directly behind a line module. See Figure 2 on page 5 for IOA location in the router and Figure 8 on page 13 for a representative IOA model. See “Installing and Removing SFPs” on page 44 and the E120 and E320 Module Guide for information on SFPs.

For a list of hot-swappable IOAs, see Table 4 on page 32.

12 ■ E120 and E320 Modules

Page 29

Figure 8: Representative IOA

Chapter 1: E120 and E320 Overview

An IOA bracket can be installed to create upper and lower IOA bays (E320 router) or left and right IOA bays (E120 router), enabling you to use two IOAs in the same slot. This architecture enables you to combine different IOA types in the same slot and to support oversubscribed configurations.

Restrictions exist concerning which IOAs can be combined in the same slot and which bay (upper or lower, left or right) they may be installed in. See “IOA Slot Combinations” on page 32 and the E120 and E320 Module Guide for information. For details about installing IOAs, see “Installing Modules” on page 27.

Network Management Tools

You can use different management tools to configure the system to meet the specific networking requirements.

CLI Management

The command-line interface (CLI) provides fully developed and automated configuration and status functionality through a local RS-232 port, Telnet, or SSH over any reachable 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 (Management Information Bases). The Juniper Networks E Series Enterprise MIB is ASN.1 notated for easy importing into third-party SNMP management applications. For more information, see JUNOSe System Basics Configuration Guide, Chapter 4, Configuring SNMP.

Network Management Tools ■ 13

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E120 and E320 11.1.x Hardware Guide

Redundancy Features

This section describes system redundancy features.

SRP Modules

The router uses a 1:1 redundancy scheme for the SRP module. When two SRP modules are installed in the router, one acts as the primary (active) and the second as a redundant (standby) module. Both SRP modules share a single SRP IOA located in the rear of the chassis. After you install two SRP modules, the modules negotiate for the primary role. A number of factors determine which module becomes the primary; however, 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 power up the system.

If the standby SRP module detects that the primary SRP module is not active (and high-availability mode is not enabled), it reboots the system and takes control. If high-availability mode has been enabled, automatic switchover occurs with near hitless failover. For information about configuring and managing SRP module redundancy, see JUNOSe System Basics Configuration Guide, Chapter 6, Managing Modules.

Power

Fans

NVS Cards

Each SRP module has two NVS cards (0, 1). The NVS cards in the active SRP module are designated disk0 and disk1. The NVS cards in the redundant SRP module are designated standby-disk0 and standby-disk1. After you install new NVS cards or SRP modules, you must issue the synchronize command to match the file system of the NVS card on the redundant SRP module with the file system of the NVS card on the active SRP module. See “Replacing an NVS Card” on page 72 for more information.

The routers provide a power architecture that distributes redundant –48 VDC feeds through the router to each line module, IOA, SRP module, SFM module, and fan module where DC-to-DC converters provide local conversion to the required secondary voltages.

The E320 router employs a bottom-to-top cooling system to keep the temperature of the modules and components within normal operating limits. Eight cooling fans are located in a tray at the top of the router. (See Figure 1 on page 5 and Figure 2 on page 5.) Air is pulled in from the front of the router at the bottom and is exhausted out the top.

The E120 router employs a right-to-left cooling system. Nine cooling fans are located in a tray at the left of the router. (See Figure 3 on page 6.) Air is pulled in from the right of the router and is exhausted out the left.

14 ■ Redundancy Features

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Chapter 1: E120 and E320 Overview

The system monitors the temperature of each module. If the temperature of a module exceeds the maximum limit, the system immediately goes into thermal protection mode and the LMs and SFM modules are powered off. The system controllers remain active and respond on all management interfaces. All other modules remain in a power-off condition. The failure of any two components (fan or converter), or the absence of the fan tray, causes the chassis to enter thermal protection mode to prevent hardware damage. For information about troubleshooting high operating temperatures, see “Troubleshooting” on page 79.

The E320 fan tray has two primary converters that power four fans each. If a primary converter fails, a third redundant converter takes over. The E120 fan tray has dual converters that load share for redundancy. If one converter fails, the other redundant converter takes over. The system software reports an alarm if any of the fans or converters fail.

Redundancy Features ■ 15

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E120 and E320 11.1.x Hardware Guide

16 ■ Redundancy Features

Page 33

Part 2

Initial Installation

■ Unpacking and Inspecting the Router on page 19

■ Installing the Router on page 23

■ Installing Modules on page 27

■ Cabling the Router on page 47

■ Powering Up the Router on page 57

■ Accessing E Series Routers on page 61

Initial Installation ■ 17

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E120 and E320 11.1.x Hardware Guide

18 ■ Initial Installation

Page 35

Chapter 2

Unpacking and Inspecting the Router

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

■ Before You Begin on page 19

■ Unpacking the Router on page 19

■ Inspecting Router Components and Accessories on page 20

■ If You Detect or Suspect Damage on page 21

■ Contacting Juniper Networks on page 21

■ The Next Step on page 21

Before You Begin

Before you begin unpacking the router, be sure you have the following tools:

■ A No. 2 Phillips screwdriver

■ A utility knife

■ A mechanical lift, or at least two people to assist in lifting

Unpacking the Router

The router is delivered boxed, bolted, and strapped to a skid. For your convenience, we recommend that you unpack the router in the location where you want to install it.

WARNING: Three 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.

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E120 and E320 11.1.x Hardware Guide

To unpack the router:

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

top, and remove the box of accessories that sits on top of the router.

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

their center and pulling out, and then lift the carton off the router.

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

the L-brackets from the skid by removing the three screws. See Figure 9 on page 20.

Figure 9: Removing an L-bracket

Inspecting Router Components and Accessories

After you remove the equipment from the shipping containers:

■ Confirm the contents of each container.

■ Inspect all external surfaces and external connectors for visible signs of damage.

■ Inspect all accessories shipped with each unit.

■ Document any damage noted during your inspection.

■ Confirm that the router has the correct number and type of modules for your

ordered configuration.

20 ■ Inspecting Router Components and Accessories

Page 37

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 Networks sales representative or reseller.

Contacting Juniper Networks

Please contact Juniper Networks at 1-888-314-JTAC (from the United States, Canada, or Mexico) or 1-408-745-9500 (from elsewhere), or contact your sales representative if you have any questions or concerns. See “Contacting Customer Support and Returning Hardware” on page 113 for complete contact information.

The Next Step

Chapter 2: Unpacking and Inspecting the Router

■ To familiarize yourself with the electrical, environmental, and other guidelines

and requirements for installing the router, see “Installation Guidelines and Requirements” on page 97.

■ If you are familiar with these guidelines and requirements, see “Installing the

Router” on page 23.

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E120 and E320 11.1.x Hardware Guide

22 ■ The Next Step

Page 39

Chapter 3

Installing the Router

This chapter describes how to install the router. It contains the following sections:

■ Before You Begin on page 23

■ Freestanding Installation on page 23

■ Rack-Mounted Installation on page 25

■ The Next Step on page 26

Before You Begin

Before installing the router, be sure you:

■ Have a plan for installing the router that takes into consideration future expansion

of your system.

■ Have the tools and accessories needed to complete the installation.

■ Read and understand the clearance requirements for the front and back of the

chassis for cable routing and other unit access. See “Environmental Requirements” on page 97 for more information.

■ Read and understand the clearance requirements for the top and bottom of the

chassis to ensure 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 mode, be sure to leave enough space around the system for adequate ventilation. Position the router with easy access to the connections that it needs for power, local communications, and remote communications.

See “Installation Guidelines and Requirements” on page 97, and “System Specifications” on page 91, for more information.

WARNING: Two people are required to lift the router.

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E120 and E320 11.1.x Hardware Guide

CAUTION: To prevent electrostatic damage to the system and its components, make sure persons handling the router wear an antistatic device.

Connectors are located on the IOAs, SRP IOA, and the power distribution unit (PDU). These modules are installed from the rear of the router (Figure 10 on page 24 and Figure 11 on page 25). See “Cabling the Router” on page 47 for cabling installation procedures.

Figure 10: E320 Router, Rear View

24 ■ Freestanding Installation

Page 41

Figure 11: E120 Router, Rear View

Chapter 3: Installing the Router

Rack-Mounted Installation

We recommend that you use a standard EIA distribution rack. See “Equipment Rack Requirements” on page 99 for rack information.

Installation Guidelines

Before installing the systems in a rack, consider the following guidelines:

■ You can install up to three E320 Broadband Services Routers or six E120

Broadband Services Routers in a single 7-ft. (2.1-m) rack. Installing multiple systems in a single rack enables you to maximize your available space.

CAUTION: To maintain airflow requirements, a plenum must be installed above the E320 router before any piece of equipment (other than an E320 router) is installed above the router. This plenum is available from Juniper Networks. Plenums are not required when E320 routers are installed above one another because the router has a built-in plenum at the bottom. See “Installation Guidelines and Requirements” on page 97 and Figure 34 on page 101.

■ Install heavier systems, such as an E320 router, on the bottom of the rack. Mount

lighter systems higher in the rack.

NOTE: An optional mounting kit is available for mid-chassis mounting. Contact your Juniper Networks sales representative for more information.

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E120 and E320 11.1.x Hardware Guide

Preparing the Equipment Racks

Following your installation plan, use a tape measure and marking pen to measure and mark space on each equipment rack for each router component. For horizontal spacing follow Network Equipment Building System (NEBS) requirements. To maintain airflow requirements, a plenum must be installed above the E320 router before any piece of equipment (other than an E320 router) is installed above the router. If you choose not to install a plenum, be sure to include 2 U of space between the E320 router and the other component for proper exhaust. A plenum, however, is highly recommended.

Installing the Router

To complete the installation of the router in a rack, you need:

■ A No. 2 Phillips screwdriver

■ Eight 10-32 x 3/8 Phillips screws (provided with the router) for each router to be

installed

The Next Step

WARNING: Do not use the cable management bracket as a handle to lift the E320 router.

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 rack on both sides.

3. Starting at the bottom of the router, have the third person secure the router in

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

4. Connect the necessary cables. (See “Cabling the Router” on page 47 for

instructions on installing the cables.)

After you finish installing the router:

■ If you need to install any modules, see “Installing Modules” on page 27.

■ If the router was delivered with the modules already installed, see “Cabling the

Router” on page 47, for instructions on connecting cables.

26 ■ The Next Step

Page 43

Chapter 4

Installing Modules

This chapter describes how to install and remove modules. For information about managing installed modules, see JUNOSe System Basics Configuration Guide, Chapter 6, Managing Modules.

This chapter contains the following sections:

■ Overview on page 27

■ Safety Guidelines on page 38

■ Installing an SRP Module or SFM Module on page 38

■ Installing an IOA Shelf on page 40

■ Installing a Line Module or an IOA on page 41

■ Removing Modules and IOAs on page 42

■ Installing and Removing SFPs on page 44

■ The Next Step on page 46

Overview

Slots for line modules, switch route processor (SRP) modules, and switch fabric module (SFM) modules are located in the front of the router, while slots for input/output adapters (IOAs) and SRP IOAs are located in the rear.

■ In the E320 Broadband Services Router, modules mount vertically in a 15–slot

chassis, numbered left to right (0–16). See Figure 12 on page 28 and Figure 13 on page 29 for front and rear views of the router.

Overview ■ 27

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E120 and E320 11.1.x Hardware Guide

Figure 12: E320 Router, Front View

28 ■ Overview

Page 45

Figure 13: E320 Router, Rear View

Chapter 4: Installing Modules

■ In the E120 Broadband Services Router, modules mount horizontally in a 9–slot

chassis, numbered bottom to top (0–10). See Figure 14 on page 29 and Figure 15 on page 30 for front and rear views of the router.

Figure 14: E120 Router, Front View

Overview ■ 29

Page 46

IOA

Ground terminals

SRP module

Power distribution unit (PDU)

Blank filler panel

g015339

Left IOA bays

(Adapter 1)

Right IOA bays

(Adapter 0)

ESD grounding jack

E120 and E320 11.1.x Hardware Guide

Figure 15: E120 Router, Rear View

Slot Numbering

For details about available line modules, IOAs, and compatibility between line modules and SRP modules, see the E120 and E320 Module Guide.

Slot numbering for the routers is similar.

■ In the E320 router, modules mount vertically in a 15–slot chassis, numbered left

to right (0–16). See Figure 16 on page 31 and Table 3 on page 31 for slot locations. Because two half-height IOAs can be installed in a slot, the upper bay is designated Adapter 0 and the lower bay is designated Adapter 1. The router does not have slot groups.

30 ■ Overview

Page 47

Figure 16: E320 Slot Numbering

Chapter 4: Installing Modules

■ In the E120 router, modules mount horizontally in a 9–slot chassis, numbered

bottom to top (0–10). See Figure 17 on page 31 and Table 3 on page 31 for slot locations. Because two half-height IOAs can be installed in a slot, the right bay is designated Adapter 0 and the left bay is designated Adapter 1. The router does not have slot groups.

Figure 17: E120 Slot Numbering

Table 3: Module Slot Locations

SlotChassis LocationComponent

FrontLM (line module)

E320 router—0–5, 11–16

■

E120 router—0–5

■

6, 7FrontSRP module

FrontBlank filler panel

Non-numbered empty slot between 6 and 7

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E120 and E320 11.1.x Hardware Guide

Table 3: Module Slot Locations (continued)

SlotChassis LocationComponent

8, 9, 10FrontSFM module

IOA Slot Combinations

Depending on the software release and IOA type, you must install IOAs in certain slots and bays combined with other IOAs in the same slot:

■ You must insert some IOAs only in the upper bay or right bay (Adapter 0) of

■ If you insert an unrecognized IOA, such as an IOA that is not supported by a

RearIOA

E320 router—0–5, 11–16

■

Upper bay: Adapter

■

0 Lower bay: Adapter

■

E120 router—0–5

Right bay: Adapter

■

0 Left bay: Adapter 1

■

each IOA module slot. If you insert one of these IOAs into a lower bay or left bay (Adapter 1) slot, the line module diagnostics fail, an error message states that the bottom slot is not supported for the currently installed software release, and the slot is disabled.

particular software release, the line module diagnostics fail, an error is generated, and the slot is disabled.

■ If you remove an IOA and replace it with a different IOA in the same slot, an

error message states the mismatch and the slot is disabled.

■ Full-height IOAs take up the entire slot (both Adapter 0 and Adapter 1).

For information about working with modules and IOAs, see JUNOSe System Basics Configuration Guide, Chapter 6, Managing Modules. See Table 4 on page 32 for currently

available IOAs and the bays in which you may insert them.

Table 4: IOA Locations and Combinations

Upper/Right Bay (Adapter 0)IOA

Lower/Left Bay (Adapter 1)

Both Bays Concurrently

Combined with Other IOAs in Same Slot

Hot-Swapping Support

YesNoNoYesYesES2-S1 GE-4

32 ■ Overview

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Table 4: IOA Locations and Combinations (continued)

Upper/Right Bay (Adapter 0)IOA

Lower/Left Bay (Adapter 1)

Both Bays Concurrently

Chapter 4: Installing Modules

Combined with Other IOAs in Same Slot

Hot-Swapping Support

ES2-S3 GE-20

ES2-S1 10GE

ES2-S2 10GE PR

ATM

(Full-height IOA)

YesYesYesES2-S1 GE-8

YesYes (GE-8 when paired with ES2 4G LM or ES2 10G LM; GE-8, OC3/STM1, and OC12/STM4 IOAs when paired with ES2 4G LM)

NoNot applicableNot applicableNot applicableYes

YesYesYesES2-S1 OC3-8 STM1

YesYes (GE-8, OC3/STM1, and OC12/STM4 IOAs only)

YesYesYesES2-S1 OC12-2 STM4

YesYes (GE-8, OC3/STM1, and OC12/STM4 IOAs only)

POS

ES2-S1 SERVICE

ES2-S1 REDUND

(Full-height IOA)

(Full-height IOA; slots 0 and 11 only)

YesYesYesES2-S1 OC12-2 STM4

YesYes (GE-8, OC3/STM1, and OC12/STM4 IOAs only)

YesNoNoYesYesES2-S1 OC48 STM16

NoNot applicableNot applicableNot applicableYes

Overview ■ 33

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E120 and E320 11.1.x Hardware Guide

Module Combinations

Line modules can only be paired with specific IOA, SFM, and SRP modules. See Table 5 on page 34 for valid combinations.

Table 5: Module Combinations

SRP Modules

This module is only supported in the E320 router.

ES2 10G ADV LMES2 10G LMES2 10G UPLINK LMES2 4G LMModules

–√√√SRP-100

√√√√SRP-120

This module is only supported in the E120 router.

SFM Modules

This module is only supported in the E320 router.

This module is only supported in the E120 router.

IOA Modules

√√√√SRP-320

√√√√SFM-100

–√√√SFM-120

–√√√SFM-320

–––√ES2-S1 GE-4

√√–√ES2-S1 GE-8

√√––ES2-S3 GE-20

34 ■ Overview

–––√ES2-S1 10GE

√√√–ES2-S2 10GE PR

–––√ES2-S1 OC3-8 STM1 ATM

–––√ES2-S1 OC12-2 STM4 ATM

Page 51

Table 5: Module Combinations (continued)

IOAs Requiring SFPs

Small form-factor pluggable transceivers (SFPs) are used on most IOAs. A range of SFPs that support different optical modes (multimode and single mode) and cabling distances are available. You can replace SFPs without disabling the interface or removing the module from the system. See “Installing and Removing SFPs” on page 44 for more information and the E120 and E320 Module Guide for IOAs that use SFPs.

Chapter 4: Installing Modules

ES2 10G ADV LMES2 10G LMES2 10G UPLINK LMES2 4G LMModules

–––√ES2-S1 OC12-2 STM4 POS

–––√ES2-S1 OC48 STM16 POS

√√√√ES2-S1 REDUND

–––√ES2-S1 SERVICE

NOTE: Because SFPs are the same shape and size, you are able to insert an SFP that is not compatible with the IOA. Be sure the SFP you are installing is appropriate for the interface you are plugging it into. If you insert the wrong SFP, software diagnostics detect the error.

Proper Handling of ES2 4G LMs

Use extra caution when handling an ES2 4G LM so that you do not damage module components or dislodge the heat sinks.

NOTE: When lifting, carrying, or holding the module, do not grasp it near the six heat sinks along the top and bottom edge of the module. Instead, hold the module along the faceplate and the edges, keeping your fingers and thumbs away from all components.

Do not use either row of heat sinks as a handle when carrying the module. You might dislodge or damage them.

Overview ■ 35

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E120 and E320 11.1.x Hardware Guide

Figure 18: LM4 Heat Sink Locations

ES2 10G Uplink Line Modules

In a 100 Gbps fabric configuration, you must install the ES2 10G Uplink line module in slot 2 or slot 4 only.

■ If you install the line module in a slot other than slot 2 or slot 4, it will be disabled.

■ If you install the module next to a configured line module that is already installed

in slot 3 or slot 5, the ES2 10G Uplink line module will be disabled.

Conversely, if you install a line module in slot 3 or slot 5 next to a previously installed ES2 10G Uplink module, the non-ES2 10G Uplink module will be disabled. For example, if you install an ES2 10G Uplink line module in both slot 2 and slot 4 in an E320 router, you can install the ES2 4G line module in the following locations: 0-1 and 6-11.

Managing Modules Using the Software

For information about software procedures associated with replacing and managing modules and IOAs, see JUNOSe System Basics Configuration Guide, Chapter 6, Managing Modules.

Order of Installation

Before you attempt to install or replace a line module (inserted in the front of the chassis), make sure a compatible IOA (inserted in the rear of the chassis) is already

36 ■ Overview

Page 53

in place. The slot diagnostics run when a line module is installed in a chassis slot. If a compatible IOA module is not present, the diagnostics fail, and you need to remove and reinsert the line module.

Hot-Swapping Modules

The router supports hot-swapping of line modules and IOAs. Hot-swapping enables you to add or remove a line module without powering down the system. IOAs that support hot-swapping enable you to add or remove an IOA without rebooting the line module. See Table 4 on page 32 for a list of hot-swappable IOAs.

Protecting Modules and Slots

The E320 router has two ESD (electrostatic discharge) grounding jacks. The front jack is located below the air filter bezel in the center of the router. The rear jack is located in the upper-right corner of the chassis. The E120 router has one ESD grounding jack located in the upper-right corner of the chassis in the rear. To prevent damage from electrostatic discharge, wear an antistatic wrist strap and connect it to one of the jacks when handling components.

Chapter 4: Installing Modules

To protect the modules, IOAs, and slots when installing components, observe the following guidelines:

CAUTION: When handling components, use an antistatic wrist strap connected to one of the router's ESD grounding jacks. This action helps to protect the module from damage by electrostatic discharge.

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

CAUTION: If you meet strong resistance when attempting to seat a module using the ejectors, remove it from the chassis and confirm that the slot is designed to hold the module. Also, be sure that you have aligned the top and bottom edges in the correct matching card guides.

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

CAUTION: Do not discard the antistatic bag. When a module is not in use, store it in an antistatic bag.

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E120 and E320 11.1.x Hardware Guide

Required Tools and Safety Items

You need the following tools to install a line module:

■ A No. 2 Phillips screwdriver

■ A flathead screwdriver

■ An ESD wrist strap or other grounding device

Safety Guidelines

Before and during the installation process, observe the following precautions:

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 attaching power cables.

WARNING: Remove jewelry (including rings, necklaces, and 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 midplane. Doing so can cause electric shock and serious burns.

WARNING: Never attempt to repair parts of modules yourself. Only trained customer service personnel are authorized to service parts. Call Juniper Networks Customer Service to make arrangements to return defective modules for repair.

Installing an SRP Module or SFM Module

You must install SRP modules in slot 6 or slot 7, and SFM modules in slots 8, 9, or

10. Four of the five fabric slots (SRP and SFM modules) must have a module installed for the router to function. A minimum system configuration requires all three SFMs and at least one SRP module to be installed. See “Fabric Slices” on page 10 for more information.

To install an SRP module or SFM module:

38 ■ Safety Guidelines

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Chapter 4: Installing Modules

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

it to one of the ESD grounding jacks on the chassis.

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

■ SRP module – slot 6 or 7

■ SFM module – slot 8, 9, or 10

See Figure 12 on page 28 and Figure 14 on page 29 for module locations.

NOTE: Four of the five fabric slots (SRP and SFM modules) must have a module installed for the router to function. A minimum system configuration requires all three SFMs and at least one SRP module to be installed.

3. With a No. 2 Phillips screwdriver, loosen the captive screws that secure the blank

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

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 Figure 19 on

page 39.

Figure 19: Closing Ejectors from the Open Position

Installing an SRP Module or SFM Module ■ 39

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E120 and E320 11.1.x Hardware Guide

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

slot and pushing the module until it stops.

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

CAUTION: If you meet strong resistance when attempting to seat the module using the ejectors, remove it from the chassis and confirm that the slot is designed to hold the module. Also, be sure that you have aligned the top and bottom edges in the correct matching tracks.

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

(as shown in Figure 19 on page 39), exerting forward pressure on the module.

8. Tighten the module's captive screws using the No. 2 Phillips screwdriver.

NOTE: Tighten the captive screws completely before installing an adjacent module so that proper EMI gasket compression occurs. Failure to do this can make it difficult to install adjacent modules.

CAUTION: Do not overtighten the screws.

Installing an IOA Shelf

Use an IOA shelf (also called an IOA bracket) when installing half-height IOAs in the router. IOA shelves screw into the midplane between the upper/right bay (Adapter

0) and lower/left bay (Adapter 1). For example, in an E320 router, IOAs in the upper bay rest on the shelf, while IOAs in the lower bay use the guides on the bottom of the shelf to remain vertical. See Figure 20 on page 40.

Figure 20: IOA Shelf

40 ■ Installing an IOA Shelf

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Chapter 4: Installing Modules

CAUTION: We recommend that you power down the router before removing or installing an IOA shelf between two slots that have modules installed in them already. Otherwise, you might short-circuit the installed modules if you accidentally touch the shelf to a module. An IOA shelf installation guide is available to ensure safe installation. Contact your account representative for more information.

To install an IOA shelf:

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

it to one of the ESD grounding jacks.

2. Remove the blank IOA filler panel from the slot.

3. Align the shelf's guide pins with the corresponding holes in the midplane and

insert the threaded shaft into the hole in the midplane between the upper/right bay and lower/left bay. Be sure the threaded shaft is visible from the right side. (See Figure 20 on page 40.)

4. Using a flathead screwdriver, tighten the screw snugly to secure the shelf.

Installing a Line Module or an IOA

This section describes the procedures for installing line modules and IOAs.

NOTE: Install the IOA module before you install the corresponding line module; otherwise, the diagnostics fail and the line module's status is listed as inactive when you issue the show version command. If this occurs, remove and reinsert the line module.

To install a line module or IOA:

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

it to one of the ESD grounding jacks.

2. Choose the slot where you want to insert the line module or IOA.

NOTE: Line modules are in the front of the system and IOAs are in the back of the system. See Table 4 on page 32 for IOA slot locations and combinations.

3. With a No. 2 Phillips screwdriver, loosen the screws that secure the blank filler

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

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

module components, pins, leads, or solder connections.

Installing a Line Module or an IOA ■ 41

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5. Verify that the ejectors are in the open position, as shown in Figure 19 on

page 39.

6. Guide the line module or IOA into the chassis by placing it between the guides

of the selected slot and pushing the module until it stops.

The module or IOA stops sliding when the ejectors make contact with the chassis.

CAUTION: If you meet strong resistance when attempting to seat the line module or IOA using the ejectors, remove it from the chassis and confirm that the slot is designed to hold the component. Also, be sure that you have aligned the top and bottom edges in the correct matching tracks.

7. Insert the line module or IOA into the midplane by simultaneously depressing

both ejectors (as shown in Figure 19 on page 39) and exerting forward pressure on the module.

8. Tighten the module's captive screws using a No. 2 Phillips screwdriver.

NOTE: Tighten the captive screws completely before installing an adjacent module so that proper EMI gasket compression occurs. Failure to do this can make it difficult to install adjacent modules.

CAUTION: Do not overtighten the screws.

Removing Modules and IOAs

This section describes the procedures for removing modules and IOAs. For a list of hot-swappable IOAs, see Table 4 on page 32.

NOTE: We recommend that you issue the slot disable command from the CLI before removing a line module or IOA.

CAUTION: If you do not use the halt command before removing or powering down an SRP module, the system's NVS card can become corrupted.

To remove a module or an IOA:

42 ■ Removing Modules and IOAs

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Chapter 4: Installing Modules

1. For SRP modules and SRP IOAs, issue the appropriate halt command (halt, halt

primary-srp, or halt standby-srp).

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

2. Ground yourself by using an antistatic wrist strap or other device and connect

it to an ESD grounding jack.

3. Use a No. 2 Phillips screwdriver to loosen the captive screws located at the top

and bottom of the module panel.

4. If the module has ejector handles, pull them to the open position, as shown in

Figure 21 on page 43.

Figure 21: Opening Ejectors from the Closed Position

5. Carefully slide the module out of the chassis.

6. Place the module in its antistatic bag, being careful not to touch module

components, pins, leads or solder connections.

7. Cover the empty chassis slot with a blank filler panel, and tighten the filler panel's

captive screws using a No. 2 Phillips screwdriver. Turn both screws several times before tightening them completely.

CAUTION: Do not overtighten the screws.

Removing Modules and IOAs ■ 43

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E120 and E320 11.1.x Hardware Guide

If you remove an IOA 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 module and do not delete the corresponding configuration, the status of the line module is listed as not present when you issue the show version command.

Installing and Removing SFPs

This section describes how to replace small form-factor pluggable transceivers (SFPs) on IOAs that support these devices. A range of SFPs that support different optical modes (multimode, single mode, and so forth) and cabling distances is available. You can replace the SFPs without disabling the interfaces or removing the module from the system.

Installing SFPs

To install SFPs:

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

it to an ESD grounding jack.

2. Identify the following items on the SFP (Figure 22 on page 44):

■ The connection circuitry on the base

■ The cable connectors on the front (which are protected by a dust cover)

Figure 22: Representative SFP

CAUTION: Be sure to position the SFP correctly before you install it.

3. Hold the SFP so that:

■ The connection circuitry is adjacent to the LK and ACT markings on the

■ The cable connectors will be visible when you install the SFP.

For the correct orientation, see Figure 23 on page 45.

44 ■ Installing and Removing SFPs

IOA's faceplate.

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Figure 23: Installing an SFP on an IOA

Chapter 4: Installing Modules

Removing SFPs

4. Slide the SFP as far as you can into the IOA until the SFP clicks into place.

If the SFP does not slide smoothly into the IOA, make sure that the orientation of the SFP is correct.

5. Gently pull the SFP to confirm that it is inserted correctly.

If the SFP comes out of the slot when you pull it, repeat Step 4.

6. Remove the dust cover that protects the cable connectors.

7. Connect the new cables to the SFP.

To remove an SFP:

1. Obtain an antistatic container for the SFP you plan to remove. (See “Storing

Modules and Components” on page 69.)

2. Ground yourself by using an antistatic wrist strap or other device and connect

it to an ESD grounding jack.

3. Disconnect the cable from the SFP on the IOA.

4. Identify the release mechanism for the SFP.

Different SFPs use different release mechanisms. See Figure 24 on page 46 for possible release mechanisms, which include:

■ A button that you press inward

■ A ring that you press inward

Installing and Removing SFPs ■ 45

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E120 and E320 11.1.x Hardware Guide

■ A bar that you pull sideways, then outward

■ A tab that you pull sideways, then outward

Figure 24: Possible Release Mechanisms on the SFP

5. Release the SFP and pull it out of the slot.

The Next Step

6. Place the SFP in an antistatic bag.

When you have replaced the SFPs and connected the cables, issue the appropriate show interface command for each interface to verify that the interface is operational (up).

After you install the modules, you can connect cables to the system. See “Cabling the Router” on page 47.

46 ■ The Next Step

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Chapter 5

Cabling the Router

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

This chapter contains the following sections:

■ Cabling Overview on page 47

■ Required Tools, Wires, and Cables on page 48

■ Cabling the SRP IOA on page 49

■ Cabling IOAs on page 51

■ Cabling the Router for Power on page 52

■ The Next Step on page 56

Cabling Overview

Cabling the router requires the following main tasks:

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

and wires needed to complete each cabling procedure. (See Figure 25 on page 48.)

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

Requirements” on page 97.)

3. (Optional) Connect timing ports.

4. Connect the SRP IOA to the network and to a management console.

5. Connect grounding wires to the router chassis.

6. Connect the power cables from the power source to the power distribution unit

(PDU).

7. Connect the IOAs to their appropriate network interface.

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E120 and E320 11.1.x Hardware Guide

Figure 25: E320 Router Rear Ports and Connectors

Required Tools, Wires, and Cables

Cabling your system takes only a few minutes. You need the following items and those listed in Table 6 on page 49 for proper installation:

■ 1/8-inch flathead screwdriver

■ 3/8-inch wrench or 3/8-inch nut-driver

■ No. 2 Phillips screwdriver

■ Ground wires—We recommend a minimum of 6-AWG ground wire.

■ Two #10 kep nuts (supplied) to connect the ground (earth) wire to the ground

terminal.

■ PDU wiring—We recommend a minimum of 4-AWG wire for the router with a

dual stud terminal lug with 5/8-inch spacing.

48 ■ Required Tools, Wires, and Cables

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Chapter 5: Cabling the Router

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 91 for more information on router specifications.

Table 6: Required Cables

Port and Cable UsedConnection

Cabling the SRP IOA

Before powering up the router, you must set up a management console. The console enables you to communicate with your system during the power-up process and to manage your system using the command-line interface (CLI).

When connecting a console directly to the SRP IOA, use a cable appropriate for your terminal connector. The cable must have a female DB-9 connector to attach to the RS-232 port on the SRP IOA. See Figure 26 on page 50.

The console port is considered a data terminal equipment interface (DTE). Direct connection to a terminal or PC (which also have DTE interfaces) requires a crossover cable.

The router has network timing ports and management ports located on the SRP IOA. See Figure 26 on page 50 and Table 7 on page 49 for details on each component.

Management connection between SRP IOA and the LAN

Management connection between SRP IOA and a management console

Direct connections to IOAs

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

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

See the E120 and E320 Module Guide for specific IOA connector information

Table 7: SRP IOA Ports

Network timing ports

Management ports

DescriptionPort

Two dual-purpose BNC connectors for BITS timing clock sources (E1

■

or T1) User-configurable through the CLI

■

Primary (A) and secondary (B)

■

75-ohm E1 2.048-Mbps/T1 1.544–Mbps inputs terminating with a

■

120/75 ohm or 100/75 ohm balun

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

■

connector Two RS-232 ports with a DB-9 connector for direct CLI (Console) and

■

debug (Auxiliary) access. The Auxiliary port is used to debug ports on a specific processor (SRP

module, LM).

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Network Timing Ports

The SRP IOA has two input ports for external network clock sources (75-ohm E1

2.048-Mbps/T1 1.544–Mbps inputs with BNC connectors). These ports provide 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 clock, is labeled B. See Figure 26 on page 50.

NOTE: We recommend you use shielded cables to connect the external clock sources to the clock source input ports. Shielded cables are not required for the operation of the system and do not need to be grounded at both ends.

Figure 26: SRP IOA

To connect the clock source input ports:

1. Attach the BNC connector to Clock A's network timing port.

2. Attach the opposite end of the network timing cable to your network's clock

source A.

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

50 ■ Cabling the SRP IOA

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Management Ports

Chapter 5: Cabling the Router

The Management section of the SRP IOA has three ports (Figure 26 on page 50) for management access:

■ One 10/100Base-T Ethernet port—Accepts an RJ-45 (male) connector, providing

an out-of-band connection for LAN access through a Telnet session or SNMP.

■ Two RS-232 management ports—Accept a DB-9 (female) connector. One port

provides direct CLI access from a console terminal; the other Auxiliary port provides debug access from a console terminal.

The management port is considered a data terminal equipment interface (DTE). Direct connection to a terminal or PC (which also have DTE interfaces) requires a crossover cable.

See “Accessing E Series Routers” on page 61 for more information about management access.

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 IOA until it clicks into place.

2. Connect the other end of the cable to the appropriate Ethernet network for an

out-of-band connection.

Connecting to a Console Terminal

When you connect a console directly to the SRP IOA, use a cable appropriate for your terminal connector. The cable must have a female DB-9 connector to attach to the RS-232 port on the SRP IOA.

To connect the console to the SRP IOA:

1. Insert the female DB-9 connector into the RS-232 port, and tighten the screws.

CAUTION: Do not overtighten the screws.

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

Cabling IOAs

This section describes the common connector types used with IOAs.

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LC Duplex Connectors

In accordance with EN60825-1, Safety of Laser Products - Part 1: Equipment Class, Requirements, and User's Guide (2001), multimode IOAs with LC connectors are defined as follows:

CLASS 1 LED PRODUCT.

In accordance with EN60825-1, Safety of Laser Products - Part 1: Equipment Class, Requirements, and User's Guide (2001), single-mode IOAs 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 (SMF) meets the regulatory requirements for casual exposure to the eye; however, looking directly into a laser can cause eye damage.

WARNING: EN60825-1, Class 1 laser fiber connectors are for connection only to Class 1 laser devices.

SFPs

See “IOAs Requiring SFPs” on page 35 and the E120 and E320 Module Guide for information on small form-factor pluggable transceivers (SFPs) used on IOAs.

Cabling the Router for Power

After you have correctly cabled the SRP IOA, you must attach grounding and electrical wires before you attempt system power-up. See Figure 27 on page 54.

Three main tasks are involved:

1. Switch all router power switches to OFF.

CAUTION: Switches may have inadvertently flipped to ON during shipping and installation.

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.

52 ■ Cabling the Router for Power

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3. Connect the power cables to the PDUs.

See “System Specifications” on page 91 for the power requirements for the router. Table 8 on page 53 identifies the cabling requirements.

Table 8: E320 Router PDU Cables and Wires Needed

Figure 27 on page 54 shows the main components of a PDU.

Chapter 5: Cabling the Router

ToFromCable/Wire

Termination groundPDU ground terminalOne 6-AWG ground wire

Appropriate leads on power source No.1PDU Power A –48 VDC and RTN leadsTwo 4-AWG wire leads

Appropriate leads on power source No.2PDU Power B –48 VDC and RTN leadsTwo 4-AWG wire leads

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Figure 27: PDU

Task 1: Turn Off All Router Power

Before starting to cable the router, push all router power switches to OFF to turn off the router.

Task 2: Connect the Grounding Cables

The router has two grounding studs located in the rear of the chassis, near the power inputs. Each stud provides grounding for a single power unit.

To ground each power unit:

1. Locate the grounding studs on the router (Figure 27 on page 54).

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

54 ■ Cabling the Router for Power

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Chapter 5: Cabling the Router

NOTE: We recommend a minimum of 6-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 secure the connection.

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

lead.

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

NOTE: When grounding the 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 placed on the electrical cables.

Task 3: Connect the Power Cables

To connect power cables to the router, follow these steps. See Figure 27 on page 54 as needed.

NOTE: Juniper Networks has qualified an AC power supply unit for use with the router. Contact your account representative for more information.

WARNING: Before you begin this procedure, be sure the power source is turned off, the router is turned off, and proper grounding wires are attached.

1. Be sure you have completed “Task 1: Turn Off All Router Power” on page 54

and “Task 2: Connect the Grounding Cables” on page 54.

2. If applicable, loosen the screws from the clear power input module cover and

remove it.

WARNING: The wiring color code of the power cables depends on the color coding of the DC power source installed at your site. Color code standards for DC wiring do not exist. To ensure that the correct polarity is connected to the router power units, confirm the connection of the power cables to the + (positive) and – (negative) leads at the power source.

NOTE: Loosen the top and bottom thumbscrews (using a No. 2 Phillips screwdriver, if necessary)

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3. Remove the nuts and locking washers from the posts for the power input (A or

B) using a small insulated adjustable wrench.

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

5. Replace the locking washers and nuts, and tighten the nuts to secure the

connection.

6. Place the other cable lead on the post labeled RTN.

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

connection.

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

power source.

NOTE: To provide redundancy, do not use the same power source for Power A and Power B leads.

The Next Step

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

tightening the four screws.

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

See “Powering Up the Router” on page 57.

56 ■ The Next Step

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Chapter 6

Powering Up the Router

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

■ Before You Power Up the System on page 57

■ Powering Up on page 57

■ Status LEDs on page 58

■ Powering Down on page 59

■ The Next Step on page 59

Before You Power Up the System

Before powering up the system, make sure you complete the following tasks. See the appropriate chapters in this guide for information about these tasks.

WARNING: Be sure the power source is turned off and the system is turned off before you perform the installation tasks.

Powering Up

■ Installing an SRP Module or SFM Module on page 38

■ Installing a Line Module or an IOA on page 41

■ Cabling the SRP IOA on page 49

■ Cabling IOAs on page 51

■ Cabling the Router for Power on page 52

NOTE: In this procedure we assume that the system is already connected to a power source. See “Cabling the Router” on page 47.

NOTE: Juniper Networks has qualified an AC power supply unit for use with the router. Contact your account representative for more information.

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For specifications on the electrical requirements for the system, see “System Specifications” on page 91. For details on the power consumed by the different modules, see the E120 and E320 Module Guide.

CAUTION: Evaluate the overall loading of the branch circuit before you install any equipment into a rack.

To power up the system:

1. Verify that the power source is operational and turned on.

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

3. Confirm that all connections are secure.

4. Switch the power switches to ON.

5. Monitor the LEDs on the SRP modules and SFM modules to verify that the system

is booting properly. See Table 11 on page 84 for LED status explanations.

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

Initialization Sequence

Each line module is initialized independently. 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 initialization. You can use the show version command to display line module status, but do not enter commands for a line module until its state is online.

Status LEDs

Upon initial power-up, the components of the router run boot code, go through a series of self diagnostic tests, and synchronize with each other.

When the prompt appears on the system console, the system is in User Exec mode and is ready to be configured:

host1>

host1>enable host1#

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

information.

When the tests are complete, use the LEDs on each module to determine the status of the router. Observe the module LEDs on the front and rear components.

See “Troubleshooting” on page 79 for information on the system's LEDs.

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Powering Down

Chapter 6: Powering Up the Router

NOTE: In the fan tray for the E320 Broadband Services Router, four of the eight fans turn on immediately upon initial power-up and the other four fans turn on after a delay of 10 seconds.

If you need to power down or remove the SRP module, first enter the halt command to temporarily suspend the system's operation. See JUNOSe System Basics Configuration Guide, Chapter 5, Managing the System for more information.

CAUTION: If you do not use the halt command before removing or powering down an SRP module, the system's NVS card might become corrupted.

If you shut down the system improperly, it runs an investigation of the file allocation table (FAT) the next time it reboots.

The Next Step

If you have problems powering up the system, see “Troubleshooting” on page 79 for help.

If the system boots properly, see “Accessing E Series Routers” on page 61.

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60 ■ The Next Step

Page 77

Chapter 7

Accessing E Series Routers

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 management of the system, see JUNOSe System Basics Configuration Guide, Chapter 5, Managing the System.

This chapter contains the following sections:

■ Setting Up Management Access on page 61

■ Console Port Setup on page 61

■ Telnet Setup on page 64

■ SNMP on page 65

■ The Next Step on page 66

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 51.) You use the console to communicate with the system during the power-up process, set an IP address, and manage the system using the command-line interface (CLI).

You can monitor and manage 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 10/100Base-T port on the SRP IOA to an Ethernet

network, and run Telnet from a remote console.

For initial access to the system, you need to physically connect your console directly to the system's RS-232 port. Through this connection you use the CLI to set an IP address on the system. After you configure the IP address, you can access the system remotely (for example, via Telnet).

Console Port Setup

You can connect a console terminal (PC, Macintosh, or UNIX workstation) directly to the SRP IOA via the RS-232 terminal port. When you connect a console directly to the system, you can configure the system without an IP address.

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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 HyperTerminal. A UNIX workstation can use the emulator TIP.

Using HyperTerminal

If your console uses a version of Microsoft Windows (such as Windows XP or Windows NT 4.0) that supports the HyperTerminal application, you can access the system via HyperTerminal.

1. Click the Start button and select Programs, Accessories, Communications, and

HyperTerminal.

2. In the HyperTerminal window, select HyperTerminal.

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

example, e320) in the Name field.

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

5. In the Connect To dialog box, in the Connect using field, select the appropriate

COM port to use (for example, COM1), and click OK.

6. In the COM1 Properties dialog box, select the following settings:

■ Bits per second: 9600

■ Data bits: 8

■ Parity: None

■ Stop bits: 1

■ Flow control: Xon/Xoff

7. Click OK.

Connecting Directly to the Router

When you connect a console directly to the system, use a cable appropriate for your terminal connector. The cable must have a female DB-9 connector to attach to the RS-232 port on the system.

The console port is considered a data terminal equipment interface (DTE). Direct connection to a terminal or PC (which also have DTE interfaces) requires a crossover cable.

To connect a console directly to the system:

1. Connect the female DB-9 connector to the RS-232 port on the router's SRP IOA.

See Figure 28 on page 63.

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Figure 28: Router Management Ports

Chapter 7: Accessing E Series Routers

2. Connect the crossover adapter connector to your PC's serial port.

3. Power up the system.

NOTE: Direct access through the RS-232 serial port enables you to monitor the system while it boots.

Assigning an IP Address

When your console is ready to communicate with the system, power up the system. (See “Powering Up the Router” on page 57.) Then set an IP address for the system. The system powers up in User Exec mode. To assign an IP address:

1. Enter the enable command at the User Exec prompt.

When you power up the system, the CLI appears on your console's screen. The system is now in User Exec mode, and you can begin configuration. For more information on using the CLI and configuring the system, see the JUNOSe System Basics Configuration Guide.

host1>enable host1#

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E120 and E320 11.1.x Hardware Guide

The system is now in Privileged Exec mode.

2. Set an IP address on the Ethernet interface:

■ Specify the identifier of the FastEthernet interface in the format:

■ Use an IP address valid for the system.

3. Continue to configure the system's parameters as needed.

After you have assigned an IP address to the system, you can communicate remotely by running Telnet over an Ethernet network. See “Telnet Setup” on page 64.

slot/adapter/port.

host1#configure terminal Enter configuration commands, one per line. End with CNTL/Z. host1(config)#interface FastEthernet 6/0/0 host1(config-if)#ip address 10.10.7.3 255.255.255.0

Telnet Setup

When 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 Ethernet port to the network:

1. Connect an Ethernet cable (RJ-45) to the system's 10/100Base-T (RJ-45) port on

the SRP IOA. See Figure 28 on page 63.

2. Connect the other end of the cable to the appropriate Ethernet network for an

out-of-band connection.

Before you can access the system with Telnet, you must either configure a password for Telnet access or disable the password requirement from the management console. In the following example, you disable the password.

1. Enter the enable command.

host1>enable host1#

The system is now in Privileged Exec mode.

2. 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.

3. Enter the line command.

The system is now in Line Configuration mode.

64 ■ Telnet Setup

host1(config)#line vty 0 4 host1(config-line)#

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Chapter 7: Accessing E Series Routers

4. Disable the password.

host1(config-line)#no login

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.

The User Exec prompt appears when the Telnet session to the system is established.

host1>

7. Enter the enable command.

SNMP

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. See JUNOSe System Basics Configuration Guide, Chapter 2, Command-Line Interface.

CAUTION: Do not change the IP address for the Ethernet interface that you are using to communicate with the system. If you change the address, you will lose the Telnet session.

The system supports Simple Network Management Protocol (SNMP), a standard management protocol for IP networks. You can configure the system as an SNMP agent.

As an SNMP agent, the system provides access to management information that it maintains. See JUNOSe System Basics Configuration Guide, Chapter 4, Configuring

SNMP for information on SNMP. See JUNOSe Command Reference 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.

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The Next Step

See “Maintaining the Router” on page 69.

66 ■ The Next Step

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Part 3

Hardware Maintenance, Replacement, and Troubleshooting Procedures

■ Maintaining the Router on page 69

■ Troubleshooting on page 79

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68 ■ Hardware Maintenance, Replacement, and Troubleshooting Procedures

Page 85

Chapter 8

Maintaining the Router

This chapter lists the tools, items, and steps needed for installing and uninstalling router components. Other maintenance procedures must be performed by an authorized Juniper Networks technician.

This chapter contains the following sections:

■ Required Tools and Items on page 69

■ Storing Modules and Components on page 69

■ Cleaning the System on page 70

■ Upgrading NVS Cards on SRP Modules on page 70

■ Replacing an NVS Card on page 72

■ Replacing Fan Trays on page 73

■ Installing an Air Filter on page 75

■ Replacing a Power Distribution Unit on page 76

Required Tools and Items

You need the following tools and other items to replace router components:

■ Flathead and No. 2 Phillips screwdrivers

■ Insulated adjustable wrench

■ Antistatic wrist strap

■ Antistatic bags (or other protective packaging to hold components)

■ Plastic boots or other protective covers for fiber-optic SC and LC connectors

Storing Modules and Components

Retain the packaging in which a module or component was shipped, and use this packaging to store the item. Modules are shipped in antistatic bags and protective packaging. Components, such as transceivers and nonvolatile storage (NVS) cards, are shipped in antistatic plastic containers within an antistatic padded box.

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CAUTION: Failure to store electronic modules and components correctly can lead to damage of these items.

Follow these guidelines for storing modules and components:

■ Store each module in a separate antistatic bag.

■ Store components in an antistatic plastic container. Some of these containers

can accommodate several components in separate compartments.

■ Do not store multiple modules or components in an antistatic bag or container

where they can touch other items.

■ (Optional) Store the item in its antistatic bag or container within the protective

packaging or padded box that the item was shipped in.

Cleaning the System

Dust is attracted to the where the air intake vents are located. Clean the area with a dry cloth every few weeks to prevent excessive accumulation of dust. This cleaning helps to maintain the efficiency of the cooling system and to prevent damage to electronic components.

WARNING: Do not insert any metal object, such as a screwdriver, or place your hand into an open slot or the backplane when the router is on. Remove jewelry (including rings, necklaces, and watches) before working on equipment that is connected to power lines. These actions prevent electric shock and serious burns.

CAUTION: When cleaning the system, wear an antistatic wrist strap connected to an ESD grounding jack. This action helps to protect modules from damage by electrostatic discharge.

Upgrading NVS Cards on SRP Modules

This section describes how to install higher-capacity NVS cards on switch route processor (SRP) modules. The procedure you use depends on the number of SRP modules in the system. A new NVS card already contains the software release you ordered.

NOTE: The new NVS card must contain the same software release that you are running on the system.

70 ■ Cleaning the System

Page 87

Upgrading a System That Contains One SRP Module

If the system contains only one SRP module, you must power down the system before you upgrade the NVS card.

CAUTION: If you do not use the halt command before removing or powering down an SRP module, the system's NVS card can become corrupted.

To upgrade the NVS card on a system that contains one SRP module:

1. Enter the halt command.

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

Chapter 8: Maintaining the Router

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

2. Connect the antistatic wrist strap to an ESD grounding jack on the router.

3. Power down the system.

4. Remove the SRP module.

5. Replace the NVS card on the SRP module. (See “Replacing an NVS Card” on

page 72.)

6. Reinsert the SRP module into the chassis.

7. Power up the system. (See “Powering Up the Router” on page 57.)

Upgrading a System That Contains Two SRP Modules

In a system that contains two SRP modules, you can upgrade the NVS cards on the SRP modules without powering down the system.

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

To upgrade the NVS cards on the SRP modules in a system that contains two SRP modules:

1. Wear an antistatic wrist strap and connect it to one an ESD grounding jack on

the router.

2. Halt the redundant SRP module.

3. Remove the redundant SRP module from the chassis.

4. Replace the NVS card on this SRP module. (See “Replacing an NVS Card” on

page 72.)

host1#halt standby-srp

5. Reinsert the SRP module into the chassis.

6. When this SRP module is available, synchronize the SRP modules.

host1#synchronize

7. When the SRP modules are synchronized, reboot the SRP module that you

upgraded.

host1#reload standby-srp

8. When this SRP module is available, synchronize the SRP modules.

host1#synchronize

9. When the SRP modules are synchronized, force the redundant SRP module to

take over from the primary SRP module.

host1#srp switch

10. Halt the redundant (former primary) SRP module.

host1#halt standby-srp

11. Immediately remove the former primary SRP module.

12. Repeat Steps 4–8 for the former primary SRP module.

Replacing an NVS Card

To replace an NVS card in slot 0 or slot 1 of an SRP module:

CAUTION: Before you insert or remove an NVS card from a running SRP module, we strongly recommend that you halt the SRP module or shut down the router.

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Chapter 8: Maintaining the Router

Failure to do this can result in file corruption in one or both cards. See JUNOSe System Basics Configuration Guide, Chapter 6, Managing Modules for information about the

halt command.

1. Obtain an antistatic container for the NVS card you plan to remove. (See “Storing

Modules and Components” on page 69.)

2. Be sure you have halted the SRP module using the halt command. See “Upgrading

a System That Contains One SRP Module” on page 71.

3. With a small flathead screwdriver, remove the faceplate from the NVS card slot

on the SRP module.

4. Eject the NVS card. (See Figure 29 on page 73.)

■ Slot 0—Insert a paperclip or similar device in the hole beneath slot 0 to eject

the NVS card.

■ Slot 1—Use a screwdriver or similar device to depress the button beneath

slot 1 and eject the card.

Figure 29: NVS Card Slots and Eject Buttons

5. Remove the NVS card and place it in the antistatic container.

6. Insert the new NVS card into the slot and push it until it clicks into place.

7. Replace the faceplate on the NVS card slot.

Replacing Fan Trays

A tray of cooling fans provides forced air cooling for components in the router. The fan tray is hot-swappable; you can replace it without powering down the system.

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However, if you do not replace the fan tray within 60 seconds, the system enters thermal protection mode. For information about thermal protection mode, see “Monitoring Temperatures of Modules” on page 85. You can monitor fan status by observing the LEDs on the SRP module or on the fan tray behind the faceplate. For complete LED information, see “Understanding Status LEDs to Troubleshoot” on page 80.

NOTE: On the SRP module or fan tray, if the red FAN FAIL LED is illuminated, either a critical or non-critical failure exists. Fan tray LEDs are located behind the fan tray bezel.

CAUTION: If the FAN FAIL LED on the SRP module is illuminated and none of the fans are spinning when you remove the fan tray, quickly power down the system until a new fan tray is available. Operating a router with inadequate air circulation can damage the modules.

Removing an E320 Fan Tray

To remove the fan tray:

1. Place a flathead screwdriver in the groove where the top bezel meets the chassis

on the top of the system, and lever the top bezel off the front of the system.

2. With an appropriate screwdriver, loosen the captive screws located at the corners

of the fan tray.

WARNING: Do not place your fingers near the fans when removing the fan tray. The blades might still be moving.

NOTE: Loosen the top and bottom thumbscrews (using a No. 2 Phillips screwdriver, if necessary)

3. Pull the fan tray halfway out of the shelf until it stops on the safety catch.

4. Pull both red safety handles upward while gripping the sides of the fan tray and

pull the tray out slightly until the safety catch is released.

5. Place one hand under the fan tray and the other on the front handle and continue

to pull the fan tray out of the chassis.

Use two hands to hold the fan tray after it comes out of the chassis.

Installing an E320 Fan Tray

To install the fan tray:

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Chapter 8: Maintaining the Router

CAUTION: Do not use the fan tray handle to carry the fan tray assembly. Use the handle only to push the tray into the chassis.

1. With two hands hold the tray horizontally or so that the captive screws point

toward you and you can read text on the labels.

2. Place the bottom corners of the tray housing in the fan tray compartment and

push toward the back of the chassis until the tray stops.

An electrical connector on the back of the fan tray pairs with an electrical connector at the back of the shelf.

3. With an appropriate screwdriver, tighten the captive screws.

Alternate between screws when tightening them to ensure that the electrical connectors at the back of the tray fit tightly.

CAUTION: Do not overtighten the screws.

4. Fold down the fan tray handle and push the top bezel back on the front of the

Installing an Air Filter

Air filters are hot-swappable; you do not have to power down the system to replace the filter. The filter is located behind the fan tray bezel located at the bottom of the front of the system. Remove the bezel to access the air filter. See Figure 30 on page 76.

system.

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Figure 30: Installing an Air Filter into an E320 Router

To install an air filter:

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

it to one of the ESD grounding jacks.

2. Remove the front bezel by grabbing the edges and pulling straight out toward

you.

3. Unscrew the two captive screws on the air filter door and swing the door down

to open it.

4. Remove the old air filter (if present).

5. Insert the new filter by sliding it in on the shelf guides. Be sure the mesh side is

facing up.

6. Close the door, tighten the captive screws, and snap the bezel on.

CAUTION: Do not overtighten the screws.

Replacing a Power Distribution Unit

To replace a power distribution unit (PDU):

1. Power down the router. See “Powering Down” on page 59.

2. Remove the clear plastic guard covering the PDU.

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Chapter 8: Maintaining the Router

WARNING: Be sure the power source is turned off and all power switches are in the OFF position.

3. Disconnect the power cables and grounding cables. See Figure 31 on page 78.

4. With an appropriate screwdriver, loosen the screws located at the corners of the

PDU.

NOTE: Loosen the top and bottom thumbscrews (using a No. 2 Phillips screwdriver, if necessary)

5. Using two hands, pull the PDU out of the chassis.

6. Install the new PDU and tighten the screws.

CAUTION: Do not overtighten the screws.

7. Reconnect the power cables and grounding cables. See “Cabling the Router for

Power” on page 52

8. Replace the clear plastic guard.

9. Power up the router. See “Powering Up the Router” on page 57.

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Figure 31: PDU

78 ■ Replacing a Power Distribution Unit

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Chapter 9

Troubleshooting

This chapter explains how you can troubleshoot a specific problem, such as abnormal LED activity or no system power, when you power up the router. It contains the following sections:

■ Diagnosing Problems on page 79

■ Troubleshooting Power Failures on page 80

■ Understanding Status LEDs to Troubleshoot on page 80

■ Monitoring Temperatures of Modules on page 85

■ Resetting Line Modules and SRP Modules on page 86

■ Double-Bit Errors on SRP Modules on page 86

Diagnosing Problems

When you first encounter a system problem:

1. Make sure power connections are secure attached.

2. Observe the system's LEDs carefully.

3. Make sure cable connections on the system modules are securely attached.

If a problem is beyond the scope of this chapter, see “Contacting Customer Support and Returning Hardware” on page 113 for further instructions.

NOTE: Running the show version, show hardware, and show environment commands is often a good first step when trying to troubleshoot a problem.

Initialization Sequence

Each line module is initialized independently. As a result, the command-line interface (CLI) on the switch route processor (SRP) module might become available before the line modules have completed initialization. Commands relating to a line module might fail if the module has not completed initialization. Use the show version command to display line module status. Do not enter commands for a line module until its state is online.

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Troubleshooting Power Failures

The system's distributed power system is designed to consume low levels of power and dissipate low levels of heat. See “System Specifications” on page 91 for specifications of power consumption and heat dissipation. If you suspect a power problem, see Table 9 on page 80.

Table 9: Causes of Power Failures

ActionsPossible ProblemsSymptom

System does not power up.

System shuts down.

System is not receiving

■

power. Module's power supply has

■

malfunctioned. Power source cannot handle

■

system load.

Temperature is too high.

■

Power is lost.

■

The following actions apply to all of the possible problems:

Verify that all power connections are correct.

Verify that the power supply is delivering the correct voltage,

current, and wattage to the system. See “System Specifications” on page 91.

If the system still does not operate, contact the Juniper Networks

Technical Assistance Center (JTAC).

The following actions apply to all of the possible problems:

Verify that power connections are properly attached.

Verify that system is receiving power.

Look to see whether or not the LEDs are lit.

Run diagnostics on SRP and line modules.

If system does not reset, contact JTAC.

Understanding Status LEDs to Troubleshoot

Module LEDs can show you the immediate status of a module and alert you to a problem with the module or one of its ports. We recommend you familiarize yourself with LED activity so that you can easily detect and correct a module-related problem with minimal or no system downtime.

LED Identification

Most modules have two sets of status LEDs. The top set indicates basic functional status of the router or module. The bottom set indicates system status for that module, such as port status (line modules and IOAs) or fan status (SRP modules). See Figure 32 on page 81 and Figure 33 on page 81 for LED locations and labeling. See Table 10 on page 82 for descriptions of LED activity for all modules and IOAs.

80 ■ Troubleshooting Power Failures

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Figure 32: Typical IOA LEDs

Chapter 9: Troubleshooting

Figure 33: SRP IOA Module LEDs

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NOTE: The primary SRP module illuminates the REDUNDANT LED when the SRP module is part of a redundancy group and it is up and running (or ready to take over). The standby SRP module monitors an activity signal from the primary SRP module to determine its state; it does not shadow the operations of the primary SRP module. If the standby SRP module detects that the primary SRP module is not active (and high-availability mode is not enabled), it reboots the system and takes control. If high-availability mode has been enabled, automatic switchover occurs with near hitless failover.

Table 10: LED Identification and Activity Descriptions

All modules

ON to OFFOFF to ONLED ColorLED IndicatorLED LabelLED Location

Failure detectedSelf-test passedGreenModule statusOK

Line module

SFM module

SRP module

Failure detectedRedModule statusFAIL

GreenRedundancyREDUN

Module is active, and a standby module is available

N+1 redundancy is enabled; 2 SRPs and 3 SFMs must be installed and working.

When LED is lit, you can remove the module without interrupting service.

Module is the spare system controller, is up, and is ready to take the role of the online system controller.

Diagnostic test running

Module offlineModule onlineGreenModule statusONLINE

Module is active, and no standby module is available

One of the five fabric slices is down or not installed.

N+1 redundancy is not enabled.

Module is no longer acting as the spare system controller.

82 ■ Understanding Status LEDs to Troubleshoot

GreenPower APA

source A.

Power is off.Power is online on

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Table 10: LED Identification and Activity Descriptions (continued)

Chapter 9: Troubleshooting

ON to OFFOFF to ONLED ColorLED IndicatorLED LabelLED Location

IOAs

GreenPower BPB

NOTE: You can run the show environment command to see whether a noncritical fan failure exists.

NOTE: In case of SRP hot-swap, when SRP IOA is removed, LK is turned off. When an SRP IOA is inserted, LK is green and stable.

GreenEthernet activityAC

NOTE: In case of SRP hot-swap, when SRP IOA is removed, AC is turned off. When an SRP IOA is inserted, AC is green and blinking.

NOTE: Not all IOAs have the following LEDs.

YellowPort statusALM

source B.

Ethernet link is up.GreenEthernet linkLK

Blinks when Ethernet traffic is on link.

The remote end of the link is experiencing loss of signal (FERF).

Power is off.Power is online on

Critical fan failure.Fan is online.GreenFan onlineFO

Fan is online.Critical fan failure.RedFan failureFF

Ethernet link is down.

No Ethernet traffic is on link.

No FERF present, port is working correctly.

LED Activity

RedPort status

Port statusOK

Port is experiencing loss of signal.

Physical link is connected properly and is functioning properly.

Port is working correctly; in sync.

Physical link is not connected properly and is not functioning properly.

When the system boots, it runs a series of tests for each module installed in the system, and the LEDs display various configurations. See Table 11 on page 84 and Table 12 on page 84 to understand normal and abnormal LED activity.

NOTE: When you reboot the system after installing a new version of the software, the line modules appear to boot twice.

Understanding Status LEDs to Troubleshoot ■ 83

Page 100

E120 and E320 11.1.x Hardware Guide

Table 11: Normal Activity of Functional Status LEDs During Booting

Status ProcessONLINEFAILOK

offoffoff

offonoff

If the system detects an error during booting, the FAIL LED lights. Some failure conditions can cause the module not to boot. In this case, the LEDs might all be off. The system then resets the module.

If the operational software detects an error, the FAIL LED lights. Some errors can cause a module reset. Crash information is displayed at the console on the next reboot.

Table 12: Troubleshooting Abnormal LED Activity on Modules

ActionsPossible ProblemsDiagnostic Signs

POWER A (PA)

■

LED is not lit POWER B (PB)

■

LED is not lit

System is not receiving power

■

from Power A. System is not receiving power

■

from Power B.

Make sure Power A and Power B terminal connections are

securely attached.

Verify that power switches are on.

Make sure connections to power sources are securely

attached.

If system still does not operate, contact the Juniper

Networks Technical Assistance Center.

1. Module is in the power-up restart state; the FAIL LED stays on briefly.

2. Module is initializing, and diagnostic tests are running; the FAIL LED stays on briefly.

3. Module passed the diagnostics; the system boots.offoffon

4. Module is now up and running.onoffon

FAIL LED lights

The line module and IOA are

■

incompatible. A hardware failure, such as a

■

failed module.

FAN OK LED

■

does not light FAN FAIL LED

■

Fan is not working properly

■

or has slowed down. Fan needs replacement.

■

lights

84 ■ Understanding Status LEDs to Troubleshoot

Make sure that the line modules and IOAs are compatible;

replace if necessary.

If you replaced the IOA only, issue the reload slot

slot_number command.

If you replaced the line module or if there was a hardware

failure, the system is supposed to automatically reset the module.

If the condition persists, contact the Juniper Networks

Technical Assistance Center.

Contact the Juniper Networks Technical Assistance Center; the system must be serviced.

NOTE: In the fan tray for the E320 Broadband Services Router, four of the eight fans turn on immediately upon initial power-up and the other four fans turn on after a delay of 10 seconds.