Juniper E SERIES BROADBAND SERVICES ROUTERS 11.3.X - E120 AND E320 HARDWARE GUIDE REV 9-29-2010, E120, E320 Hardware Manual

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E Series™ Broadband Services Routers

E120 and E320 Hardware Guide

Release

11.3.x

Published: 2010-09-29

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Juniper Networks, Inc. 1194 North Mathilda Avenue Sunnyvale, California 94089 USA 408-745-2000 www.juniper.net

Juniper Networks, Junos, Steel-Belted Radius, NetScreen, and ScreenOS are registered trademarks of Juniper Networks, Inc. in the United States and other countries. The Juniper Networks Logo, the Junos logo, and JunosE are trademarks of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners.

Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, 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 11.3.x

Writing: Subash Babu Asokan, John Borelli, Krupa Chandrashekar Editing: Benjamin Mann, Alana Calapai Illustration: John Borelli Cover Design: Edmonds Design

Revision History October 2010—FRS JunosE 11.3.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 YOUDO NOT OR CANNOTAGREE 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 theCustomer’s principalofficeislocated outside theAmericas) (suchapplicableentitybeing referred to herein as“Juniper”), and (ii)the person or organizationthat originally purchased from Juniperor anauthorized 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 oran authorized Juniper reseller. “Software” also includesupdates, 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 ofthe applicable fees and thelimitationsand restrictions setforth 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 limitstoCustomer’suse of the Software. Such limits mayrestrict use toa maximum numberof seats, registeredendpoints, 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 anyform,to anythird party; (d) removeany proprietary notices,labels, or marks on orin anycopyof theSoftwareor anyproduct 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 thesecondhandmarket;(f) use any‘locked’ orkey-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

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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 anythird party withoutthe prior writtenconsent of Juniper;or (l) use the Software inany 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.

6. Confidentiality. The Parties agree that aspects of the Software and associated documentation are the confidential property of Juniper. As such, Customershall exercise all reasonable commercial efforts to maintain the Software and associated documentation in confidence, which at a minimumincludes restricting access to the Software to Customer employees and contractors having a needto 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 statementthataccompaniesthe Software(the “Warranty Statement”). Nothing inthis Agreement shallgive rise toany obligationtosupport 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 ORPROCUREMENT OFSUBSTITUTE GOODSOR SERVICES,OR FORANY SPECIAL,INDIRECT, OR CONSEQUENTIALDAMAGES ARISING OUTOF THIS AGREEMENT,THE SOFTWARE,OR ANY JUNIPEROR JUNIPER-SUPPLIED SOFTWARE. IN NOEVENT 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.

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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 observestrict obligationsof confidentiality with respect to such information and shalluse such information in compliance with any applicable terms and conditions upon which Juniper makes such information available.

14. Third Party Software. Any licensor ofJuniper whose software is embedded in theSoftwareand any supplierof Juniper whoseproducts 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 licensoror vendor shallhave the right toenforcethis Agreement in its own name asif it were Juniper. In addition, certain thirdparty 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 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 confirmthat 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

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

Fabric Slices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

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

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

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

Packet Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

I/O Adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Network Management Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

CLI Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

SNMP MIB Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Redundancy Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

SRP Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

NVS Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

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E120 and E320 11.3.x Hardware Guide

Part 2 Initial Installation

Chapter 2 Unpacking and Inspecting the Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Chapter 3 Installing the Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Chapter 4 Installing Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Chapter 5 Cabling the Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Unpacking the Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Inspecting Router Components and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . 18

If You Detect or Suspect Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Contacting Juniper Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

The Next Step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Freestanding Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Rack-Mounted Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Preparing the Equipment Racks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Installing the Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

The Next Step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Slot Numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

IOA Slot Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Module Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

IOAs Requiring SFPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Proper Handling of ES2 4G LMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

ES2 10G Uplink Line Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Managing Modules Using the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Order of Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Hot-Swapping Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Protecting Modules and Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Required Tools and Safety Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Installing an SRP Module or SFM Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Installing an IOA Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Installing a Line Module or an IOA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Removing Modules and IOAs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Installing and Removing SFPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Installing SFPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Removing SFPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

The Next Step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Cabling Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Required Tools, Wires, and Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Cabling the SRP IOA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Network Timing Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Management Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Connecting to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Connecting to a Console Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

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Table of Contents

Cabling IOAs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

LC Duplex Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

SFPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Cabling the Router for Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Task 1: Turn Off All Router Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Task 2: Connect the Grounding Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Task 3: Connect the Power Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

The Next Step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Chapter 6 Powering Up the Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Before You Power Up the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Powering Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Initialization Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Powering Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

The Next Step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Chapter 7 Accessing E Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Setting Up Management Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Console Port Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Using HyperTerminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Connecting Directly to the Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Assigning an IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Telnet Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

SNMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

The Next Step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Part 3 Hardware Maintenance, Replacement, and Troubleshooting

Procedures

Chapter 8 Maintaining the Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Required Tools and Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Storing Modules and Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Cleaning the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Upgrading NVS Cards on SRP Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Upgrading a System That Contains One SRP Module . . . . . . . . . . . . . . . . . . 69

Upgrading a System That Contains Two SRP Modules . . . . . . . . . . . . . . . . . 69

Replacing an NVS Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Replacing Fan Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Removing an E320 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Installing an E320 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Installing an Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Replacing a Power Distribution Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Chapter 9 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Diagnosing Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Initialization Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Troubleshooting Power Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

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E120 and E320 11.3.x Hardware Guide

Part 4 Appendixes

Appendix A System Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Appendix B Installation Guidelines and Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Appendix C Cable Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Appendix D Contacting Customer Support and Returning Hardware . . . . . . . . . . . . . . . . 111

Understanding Status LEDs to Troubleshoot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

LED Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

LED Activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Monitoring Temperatures of Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Resetting Line Modules and SRP Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Double-Bit Errors on SRP Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Detecting Double-Bit Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Fixing Double-Bit Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

E120 Broadband Services Router Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 89

E320 Broadband Services Router Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Router Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Your Preinstallation Responsibilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Regulatory Compliances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Equipment Rack Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Mechanical Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Space Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Proper Rack Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Cabling Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Product Reclamation and Recycling Program . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Hardware Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Federal Communications Commission (FCC) Statement . . . . . . . . . . . . . . . 101

FCC Requirements for Consumer Products . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Food and Drug Administration, Center for Devices and Radiological

Health . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Canadian Department of Communications Radio Interference

Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Réglement sur le brouillage radioélectrique du ministère des

communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Industry Canada Notice CS-03 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Avis CS-03 d'Industrie Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

D.O.C. Explanatory Notes: Equipment Attachment Limitations . . . . . . . . . . 103

Notes explicatives du ministère des Communications: limites visant les

accessoires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

EC Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Voluntary Control Council for Interference (VCCI) Statement for Japan . . . 105

SRP IOA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Contacting Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Return Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Page 11

Table of Contents

Locating Component Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Information You Might Need to Supply to JTAC . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Tools and Parts Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Returning Products for Repair or Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Packing Instructions for Returning a Chassis . . . . . . . . . . . . . . . . . . . . . . . . . 114

Appendix E Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Declaration of Conformity – E120 Broadband Services Router . . . . . . . . . . . . . . . 117

Declaration of Conformity – E320 Broadband Services Router . . . . . . . . . . . . . . . 117

Part 5 Index

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

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E120 and E320 11.3.x Hardware Guide

Page 13

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 SeriesBroadbandServices Routersin anInternet access environment.

E Series and JunosE Text and Syntax Conventions

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

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E120 and E320 11.3.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

Representscommandsand keywords intext.Bold text like this

Fixed-width text like this

Italic text like this

Plus sign (+) linking key names

Syntax Conventions in the Command Reference Guide

Representsinformationasdisplayedon your terminal’s screen.

•

Emphasizes words.

•

Identifies variables.

•

Identifies chapter, appendix, and book names.

keys simultaneously.

ExamplesDescriptionConvention

•

Issue the clock source command.

•

Specify the keyword exp-msg.

host1(config)#traffic class low-loss1Represents text that the user must type.Bold text like this

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

mask, accessListNameRepresents variables.Italic text like this

Page 15

Table 2: Text and Syntax Conventions (continued)

About the Documentation

ExamplesDescriptionConvention

| (pipe symbol)

or variable to the left or to the right of this symbol. (The keyword or variable can be either optional or required.)

[ ]* (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 Portable Libraries page at

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

diagnostic | lineRepresents a choice to select one keyword

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

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

{ permit | deny } { in | out }

{ clusterId | ipAddress }

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

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 productsupport isavailable through theJuniper NetworksTechnical Assistance Center (JTAC). If you are a customer with an active J-Care or JNASC support contract,

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E120 and E320 11.3.x Hardware Guide

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/us/en/local/pdf/resource-guides/7100059-en.pdf .

•

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 verifyserviceentitlement by product serial number, use ourSerialNumber 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 .

Page 17

PART 1

Product Overview

•

E120 and E320 Overview on page 3

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E120 and E320 11.3.x Hardware Guide

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 12

•

Redundancy Features on page 13

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 productfamilyofferinghigh-port density andhighbandwidth inafully 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.

The routers utilize the same JunosE™ Software architecture and provide a single IPentry 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, Voiceover IP (VoIP), Metro Ethernet, customercircuitaggregation,virtual private networks (VPNs), and wholesale services.

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

Chassis Overview

Two models are available:

•

E120 router

•

E320 router

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E120 and E320 11.3.x Hardware Guide

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

•

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.

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Figure 1: E320 Router, Front View

Chapter 1: E120 and E320 Overview

Figure 2: E320 Router, Rear View

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E120 and E320 11.3.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 6.

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.

Figure 3: E120 Router, Front View

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

Figure 4: E120 Router, Rear View

Page 23

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 thesystem routes the traffic onto higher-speed uplinkline modules andthen to thecore ofthe network. Line modules act asframe 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-capacitySRP modules can beused in lower-capacityrouters,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.

Chapter 1: E120 and E320 Overview

SRP Module

•

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 77. For complete module specifications, see the E120 and E320 Module Guide.

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

Each SRPmodule(Figure 5 on page 8)is aPowerPC-based system with itsown memory, nonvolatile storage (NVS), and power converter. The SRP module works with the SFM modules and contains aswitch fabric slice common to both modules. See “Fabric Slices” on page 9 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.

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E120 and E320 11.3.x Hardware Guide

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 failoveroccurs. See “Redundancy Features”on page 13 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.

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 25.

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.

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.

Page 25

SFM Module

Chapter 1: E120 and E320 Overview

Failure to do this can result in file corruption in one or both cards. See “Replacing an NVS Card” on page 70 for more information.

The switch fabric modules (SFMs) workwith theSRP module to create ashared memory fabric for the router. Each SFM module (Figure 6 on page 9) has its own memory and powerconverter. Likethe SRPmodule,the SFMmodulecontains a fabricsystemprocessor board (slice). See “Fabric Slices” on page 9.

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

Fabric Slices

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

When allfive modules are installed,the fabric slice ofthe standby SRPactsas aredundant 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.

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E120 and E320 11.3.x Hardware Guide

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 6 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 outpreviously to the same network without refreshing the MAC address of the SRP IOA.

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 topreventloss of accounting orlogoutinformation:

•

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.

Afteryou complete hot-swapping theSRP IOA, you can usethe show version all command to display the state of the SRP IOA.

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

•

E320 router with SRP-100 or SRP-320

•

E120 router

Page 27

Line Modules

Chapter 1: E120 and E320 Overview

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 25.

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 11 shows a representative line module. For details about installing line modules, see “Installing Modules” on page 25.

Figure 7: Representative Line Module

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.

I/O Adapters

Most input/output adapters (IOA) provide the physical interconnection to the network via small form-factorpluggabletransceivers(SFPs). You insert each IOAinto the passive midplane in the rear of the chassis, directly behind a line module. See Figure 2 on page 5

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E120 and E320 11.3.x Hardware Guide

for IOA location in the router and Figure 8 on page 12 for a representative IOA model. See “Installing and Removing SFPs” on page 41 and the E120 and E320 Module Guide for information on SFPs.

For a list of hot-swappable IOAs, see Table 4 on page 30.

Figure 8: Representative IOA

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 30 and the E120 and E320 Module Guide for information. For details about installing IOAs, see “Installing Modules” on page 25.

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 developedand 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

Page 29

easy importing into third-party SNMP management applications. For more information, see JunosE System Basics Configuration Guide, Chapter 4, Configuring SNMP.

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 therouter, one actsas the primary (active) andthe second as aredundant (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 whichmodule 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.

Chapter 1: E120 and E320 Overview

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 70 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.

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

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E120 and E320 11.3.x Hardware Guide

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 77.

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 convertertakesover. The systemsoftware reports analarm if any of the fans orconverters fail.

Page 31

PART 2

Initial Installation

•

Unpacking and Inspecting the Router on page 17

•

Installing the Router on page 21

•

Installing Modules on page 25

•

Cabling the Router on page 45

•

Powering Up the Router on page 55

•

Accessing E Series Routers on page 59

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E120 and E320 11.3.x Hardware Guide

Page 33

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 17

•

Unpacking the Router on page 17

•

Inspecting Router Components and Accessories on page 18

•

If You Detect or Suspect Damage on page 18

•

Contacting Juniper Networks on page 19

•

The Next Step on page 19

Before You Begin

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

•

A No. 2 Phillips screwdriver

•

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.

A utility knife

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

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 11.3.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,

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

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

Figure 9: Removing an L-bracket

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

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

L-brackets from the skid by removing the three screws. See Figure 9 on page 18.

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.

If You Detect or Suspect Damage

If you detect or suspect damage to any equipment:

Page 35

•

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 111 for complete contact information.

The Next Step

•

To familiarize yourself with the electrical, environmental, and other guidelines and requirements for installing the router, see “Installation Guidelines and Requirements” on page 95.

•

If you are familiar with these guidelines and requirements, see “Installing the Router” on page 21.

Chapter 2: Unpacking and Inspecting the Router

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E120 and E320 11.3.x Hardware Guide

Page 37

CHAPTER 3

Installing the Router

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

•

Before You Begin on page 21

•

Freestanding Installation on page 21

•

Rack-Mounted Installation on page 23

•

The Next Step on page 24

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 andother unit access. See “EnvironmentalRequirements”on page 95 for more information.

•

Readand understand the clearance requirements forthe top andbottomof 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 easyaccessto the connectionsthat it needsfor power,localcommunications,and remote communications.

See “Installation Guidelines andRequirements”on page 95,and “System Specifications” on page 89, for more information.

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E120 and E320 11.3.x Hardware Guide

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 22 and Figure 11 on page 23). See “Cabling the Router” on page 45 for cabling installation procedures.

Figure 10: E320 Router, Rear View

WARNING: Two people are required to lift the router.

CAUTION: To prevent electrostatic damage to the system and its

components, make sure persons handling the router wear an antistatic device.

Page 39

Figure 11: E120 Router, Rear View

Rack-Mounted Installation

Chapter 3: Installing the Router

Installation Guidelines

We recommend that you use a standard EIA distribution rack. See “Equipment Rack Requirements” on page 97 for rack information.

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.Plenumsare 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 95 and Figure 34 on page 99.

•

Install heavier systems, such asan E320 router, onthe bottom of therack. 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.

Page 40

E120 and E320 11.3.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 10-32x 3/8Phillips screws (providedwith therouter)for each router to beinstalled

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

E320 router.

The Next Step

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 45 for instructions

on installing the cables.)

After you finish installing the router:

•

If you need to install any modules, see “Installing Modules” on page 25.

•

If the router was delivered withthe modulesalready installed, see “Cabling theRouter” on page 45, for instructions on connecting cables.

Page 41

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 25

•

Safety Guidelines on page 35

•

Installing an SRP Module or SFM Module on page 36

•

Installing an IOA Shelf on page 38

•

Installing a Line Module or an IOA on page 38

•

Removing Modules and IOAs on page 40

•

Installing and Removing SFPs on page 41

•

The Next Step on page 44

Overview

Slots for line modules, switch route processor (SRP) modules, and switch fabric module (SFM) modules arelocated in thefront of therouter, whileslots for input/outputadapters (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 26 and Figure 13 on page 27 for front and rear views of the router.

Page 42

E120 and E320 11.3.x Hardware Guide

Figure 12: E320 Router, Front View

Page 43

Figure 13: E320 Router, Rear View

Chapter 4: Installing Modules

•

In theE120 Broadband Services Router, modulesmount horizontallyin a9–slot chassis, numbered bottom to top (0–10). See Figure 14 on page 27 and Figure 15 on page 28 for front and rear views of the router.

Figure 14: E120 Router, Front View

Page 44

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 11.3.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 onpage 29 and Table 3 onpage29 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.

Page 45

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 29 and Table 3 on page 29 for slot locations. Because two half-height IOAs can be installed in a slot, the right bay is designated Adapter0 and the left bay isdesignatedAdapter1. The router does nothaveslot 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

8, 9, 10FrontSFM module

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E120 and E320 11.3.x Hardware Guide

Table 3: Module Slot Locations (continued)

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 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.

SlotChassis LocationComponent

•

RearIOA

E320 router—0–5, 11–16

•

Upper bay: Adapter 0

•

Lower bay: Adapter 1

E120 router—0–5

•

Right bay: Adapter 0

•

Left bay: Adapter 1

•

If you insert an unrecognized IOA, such as an IOA that is not supported by a 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 30 for currently available IOAs and the bays in which you may insert them.

Table 4: IOA Locations and Combinations

Upper/RightBay (Adapter 0)IOA

Lower/Left Bay (Adapter 1)

Both Bays Concurrently

YesYesYesES2-S1 GE-8

Combined with Other IOAs in Same Slot

paired with ES2 4G LM orES2 10G LM; GE-8, OC3/STM1, and OC12/STM4 IOAs when paired with ES2 4G LM)

Hot-Swapping Support

YesNoNoYesYesES2-S1 GE-4

YesYes (GE-8 when

ES2-S3 GE-20

(Full-height IOA)

NoNot applicableNot applicableNot applicableYes

Page 47

Table 4: IOA Locations and Combinations (continued)

Upper/RightBay (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-S1 10GE

ES2-S2 10GE PR

ATM

POS

ES2-S1 SERVICE

(Full-height IOA)

NoNot applicableNot applicableNot applicableYes

YesYesYesES2-S1 OC3-8 STM1

OC3/STM1, and OC12/STM4 IOAs only)

YesYesYesES2-S1 OC12-2 STM4

OC3/STM1, and OC12/STM4 IOAs only)

YesYesYesES2-S1 OC12-2 STM4

OC3/STM1, and OC12/STM4 IOAs only)

YesYes (GE-8,

YesNoNoYesYesES2-S1 OC48 STM16

NoNot applicableNot applicableNot applicableYes

(Full-height IOA)

ES2-S1 REDUND

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

Module Combinations

Line modules can only be paired with specific IOA, SFM, and SRP modules. See Table 5 on page 31 for valid combinations.

Table 5: Module Combinations

SRP Modules

This module is only supported in theE320 router.

NoNot applicableNot applicableNot applicableYes

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

–√√√SRP-100

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E120 and E320 11.3.x Hardware Guide

Table 5: Module Combinations (continued)

This module is only supported in theE120 router.

SFM Modules

This module is only supported in theE320 router.

This module is only supported in theE120 router.

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

√√√√SRP-120

√√√√SRP-320

√√√√SFM-100

–√√√SFM-120

IOA Modules

–√√√SFM-320

–––√ES2-S1 GE-4

√√–√ES2-S1 GE-8

√√––ES2-S3 GE-20

–––√ES2-S1 10GE

√√√–ES2-S2 10GE PR

–––√ES2-S1 OC3-8 STM1 ATM

–––√ES2-S1 OC12-2 STM4 ATM

–––√ES2-S1 OC12-2 STM4 POS

–––√ES2-S1 OC48 STM16 POS

√√√√ES2-S1 REDUND

–––√ES2-S1 SERVICE

IOAs Requiring SFPs

Small form-factor pluggable transceivers (SFPs) areused onmost IOAs. Arange of SFPs that support differentoptical modes (multimode andsingle mode) andcabling distances are available. You can replace SFPs without disabling the interface or removing the

Page 49

module from the system. See “Installing and Removing SFPs” on page 41 for more information and the E120 and E320 Module Guide for IOAs that use SFPs.

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.

Chapter 4: Installing Modules

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.

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.

Figure 18: LM4 Heat Sink Locations

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E120 and E320 11.3.x Hardware Guide

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

Beforeyou attempt to install orreplacea linemodule (inserted inthe frontof thechassis), make sure a compatible IOA (inserted in the rear of the chassis) is already 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 30 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-rightcorner of thechassis. The E120routerhas one ESDgrounding jack located in the upper-right corner of the chassis in the rear. To prevent damage from electrostatic discharge, wear anantistatic wriststrap andconnect it to one of the jacks when handling components.

To protectthe modules, IOAs, and slots when installingcomponents,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.

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Chapter 4: Installing Modules

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.

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 cablesduring

lightning activity.

WARNING: Be sure circuit breakers for the power source are in the OFF position before attaching power cables.

WARNING: Removejewelry (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.

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E120 and E320 11.3.x Hardware Guide

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 leastone SRP module tobe installed. See “Fabric Slices”on page 9 for moreinformation.

To install an SRP module or SFM module:

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 26 and Figure 14 on page 27 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 37.

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Figure 19: Closing Ejectors from the Open Position

Chapter 4: Installing Modules

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 slidingwhen theejectorsmake contact with the front ofthe 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 37), exerting forward pressure on the module.

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

NOTE: Tighten the captive screws completelybeforeinstalling 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.

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E120 and E320 11.3.x Hardware Guide

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 38.

Figure 20: IOA Shelf

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 38.)

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.

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Chapter 4: Installing Modules

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.

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 30 for a list of hot-swappable IOAs.

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 30 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.

5. Verify that the ejectors are in the open position, as shown in Figure 19 on page 37.

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 37) and exerting forward pressure on the module.

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

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E120 and E320 11.3.x Hardware Guide

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 30.

NOTE: Tighten the captive screws completelybeforeinstalling 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.

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:

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 41.

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Figure 21: Opening Ejectors from the Closed Position

Chapter 4: Installing Modules

5. Carefully slide the module out of the chassis.

6. Place the modulein itsantistatic bag, being careful notto touch modulecomponents,

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.

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 removea linemodule and donot 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. Arange of SFPsthat supportdifferent optical modes (multimode, single mode, andso forth) and cablingdistancesis available. You canreplace the SFPs without disabling the interfaces or removing the module from the system.

CAUTION: Do not overtighten the screws.

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E120 and E320 11.3.x Hardware Guide

Installing SFPs

To install SFPs:

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

2. Identify the following items on the SFP (Figure 22 on page 42):

Figure 22: Representative SFP

ESD grounding jack.

•

The connection circuitry on the base

•

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

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 IOA's faceplate.

•

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

For the correct orientation, see Figure 23 on page 43.

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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 67.)

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.

DifferentSFPs usedifferentrelease mechanisms. SeeFigure24 onpage44 for possible release mechanisms, which include:

•

A button that you press inward

•

A ring that you press inward

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E120 and E320 11.3.x Hardware Guide

Figure 24: Possible Release Mechanisms on the SFP

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

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).

•

A bar that you pull sideways, then outward

•

A tab that you pull sideways, then outward

The Next Step

After you install the modules, you can connect cables to the system. See “Cabling the Router” on page 45.

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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 45

•

Required Tools, Wires, and Cables on page 46

•

Cabling the SRP IOA on page 47

•

Cabling IOAs on page 49

•

Cabling the Router for Power on page 50

•

The Next Step on page 53

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 46.)

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

Requirements” on page 95.)

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 thepowercables from thepowersourcetothe power distribution unit (PDU).

7. Connect the IOAs to their appropriate network interface.

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E120 and E320 11.3.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 47 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 kepnuts(supplied) to connect the ground(earth)wire to thegroundterminal.

•

PDU wiring—We recommend a minimum of 4-AWG wire for the router with a dual stud terminal lug with 5/8-inch spacing.

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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 89 for more information on router specifications.

Table 6: Required Cables

Port and Cable UsedConnection

Cabling the SRP IOA

Management connection between SRP IOA and the LAN

Management connection between SRP IOA and a management console

Direct connections to IOAs

One 10/100Base-TEthernetmanagementport with an RJ-45 connector

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

See the E120and E320 Module Guide for specificIOA connector information

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 48.

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 48 and Table 7 on page 47 for details on each component.

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 E12.048-Mbps/T11.544–Mbps inputs terminating with a120/75 ohm or 100/75 ohm balun

•

One 10/100Base-TEthernetmanagementport withanRJ-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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E120 and E320 11.3.x Hardware Guide

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 48.

Figure 26: SRP IOA

NOTE: Werecommendyou use shielded cablesto connect the externalclock 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.

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

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

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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 48) 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 59 for more information about management access.

Connecting to the Network

Cabling IOAs

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).

This section describes the common connector types used with IOAs.

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:

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E120 and E320 11.3.x Hardware Guide

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 withLCconnectors are defined as follows:

CLASS 1 LASER PRODUCT.

WARNING: Do not lookdirectlyintoLC-stylefiber 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 page32 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 51.

Three main tasks are involved:

1. Switch all router power switches to OFF.

2. Connect the grounding wires to the chassis.

CAUTION: Switchesmay have inadvertentlyflipped to ON during shipping

and installation.

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

3. Connect the power cables to the PDUs.

See “System Specifications” on page 89 for the power requirements for the router. Table 8 on page 51 identifies the cabling requirements.

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Table 8: E320 Router PDU Cables and Wires Needed

Figure 27 on page 51 shows the main components of a PDU.

Figure 27: 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

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.

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E120 and E320 11.3.x Hardware Guide

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 51).

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

NOTE: Werecommenda minimum of 6-AWGground 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.

Task 3: Connect the Power Cables

To connect power cables to the router, follow these steps. See Figure 27 on page 51 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 51 and “Task

2: Connect the Grounding Cables” on page 52.

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.

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

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Chapter 5: Cabling the Router

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)

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 thelockingwasher and nut, and firmlytightenthe nutto secure theconnection.

The Next Step

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.

9. Place the clear plastic guard over the terminalposts, andsecure 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 55.

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E120 and E320 11.3.x Hardware Guide

Page 71

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 55

•

Powering Up on page 55

•

Status LEDs on page 56

•

Powering Down on page 57

•

The Next Step on page 57

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.

•

Installing an SRP Module or SFM Module on page 36

•

Installing a Line Module or an IOA on page 38

•

Cabling the SRP IOA on page 47

•

Cabling IOAs on page 49

•

Cabling the Router for Power on page 50

Powering Up

NOTE: In this procedure we assume that the system is already connected to a power source. See “Cabling the Router” on page 45.

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E120 and E320 11.3.x Hardware Guide

For specifications on the electrical requirements for the system, see “System Specifications”on page 89. For details onthe power consumed by thedifferentmodules, see the E120 and E320 Module Guide.

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.

NOTE: Juniper Networks has qualified an AC power supply unit for use with

the router. Contact your account representative for more information.

CAUTION: Evaluatetheoverallloadingof the branch circuit beforeyou install any equipment into a rack.

Initialization Sequence

Status LEDs

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 82 for LED status explanations.

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

host1>

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

host1>enable host1#

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.

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.

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 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.

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Powering Down

Chapter 6: Powering Up the Router

See “Troubleshooting” on page 77 for information on the system's LEDs.

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.

The Next Step

If youshut downthe system improperly, it runs an investigationof the file allocation table (FAT) the next time it reboots.

If you have problems powering up the system, see “Troubleshooting” on page 77 for help.

If the system boots properly, see “Accessing E Series Routers” on page 59.

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E120 and E320 11.3.x Hardware Guide

Page 75

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 59

•

Console Port Setup on page 60

•

Telnet Setup on page 62

•

SNMP on page 63

•

The Next Step on page 63

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 49.) You use the console to communicate with the system during the power-up process, set an IP address, andmanage thesystem 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.

•

Remoteconsole—Connect10/100Base-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).

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E120 and E320 11.3.x Hardware Guide

Console Port Setup

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

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

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Chapter 7: Accessing E Series Routers

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

Figure 28 on page 61.

Figure 28: Router Management Ports

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

3. Power up the system.

Assigning an IP Address

When yourconsole isready to communicate with the system, power up the system.(See “PoweringUp theRouter”on page 55.)Then set anIP 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 upthe system, the CLIappears 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.

NOTE: Direct access through the RS-232 serial port enables you to monitor

the system while it boots.

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E120 and E320 11.3.x Hardware Guide

2. Set an IP address on the Ethernet interface:

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 62.

Telnet Setup

host1>enable host1#

The system is now in Privileged Exec mode.

•

Specify the identifier of the FastEthernet interface in the format: slot/adapter/port.

•

Use an IP address valid for the system.

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

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 61.

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.

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

The system is now in Line Configuration mode.

4. Disable the password.

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Chapter 7: Accessing E Series Routers

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.

host1>enable host1#

The system is now in Privileged Exec mode.

SNMP

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.

The Next Step

See “Maintaining the Router” on page 67.

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PART 3

Hardware Maintenance, Replacement, and Troubleshooting Procedures

•

Maintaining the Router on page 67

•

Troubleshooting on page 77

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CHAPTER 8

Maintaining the Router

This chapter lists the tools, items, and steps needed for installing and uninstalling router components. Other maintenance proceduresmust beperformedby an authorizedJuniper Networks technician.

This chapter contains the following sections:

•

Required Tools and Items on page 67

•

Storing Modules and Components on page 67

•

Cleaning the System on page 68

•

Upgrading NVS Cards on SRP Modules on page 68

•

Replacing an NVS Card on page 70

•

Replacing Fan Trays on page 71

•

Installing an Air Filter on page 73

•

Replacing a Power Distribution Unit on page 74

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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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

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

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 describeshow to installhigher-capacityNVS cards onswitchroute 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.

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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.

WARNING: Do not insert any metal object, such as a screwdriver, or place

Chapter 8: Maintaining the Router

CAUTION: When handling modules,use an antistaticwrist 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 theNVS card onthe SRPmodule. (See “Replacing an NVS Card” onpage 70.)

6. Reinsert the SRP module into the chassis.

7. Power up the system. (See “Powering Up the Router” on page 55.)

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.

WARNING: Do not insert any metal object, such as a screwdriver, or place

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E120 and E320 11.3.x Hardware Guide

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

2. Halt the redundant SRP module.

3. Remove the redundant SRP module from the chassis.

4. Replace the NVS card on thisSRP module. (See “Replacingan NVS Card”on page 70.)

5. Reinsert the SRP module into the chassis.

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.

router.

host1#halt standby-srp

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

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

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

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

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

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:

host1#synchronize

host1#reload standby-srp

host1#synchronize

over from the primary SRP module.

host1#srp switch

host1#halt standby-srp

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. 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.

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

Modules and Components” on page 67.)

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

System That Contains One SRP Module” on page 69.

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 71.)

•

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. However, if you donot replace the fantraywithin 60 seconds, the system entersthermal protection mode. For information about thermal protection mode, see “Monitoring Temperatures of Modules” on page 83. 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 78.

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E120 and E320 11.3.x Hardware Guide

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.

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.Operatinga router with inadequate air circulation can damage the modules.

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

the fan tray.

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:

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)

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.

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

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

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

4. Fold down the fan tray handleand push the top bezelback on thefront of the system.

Installing an Air Filter

Chapter 8: Maintaining the Router

you and you can read text on the labels.

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.

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.

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 73.

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.

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E120 and E320 11.3.x Hardware Guide

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 57.

2. Remove the clear plastic guard covering the PDU.

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 75.

4. With anappropriate 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 thepowercables and groundingcables.See “Cabling theRouterfor Power”

on page 50

8. Replace the clear plastic guard.

9. Power up the router. See “Powering Up the Router” on page 55.

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Figure 31: PDU

Chapter 8: Maintaining the Router

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E120 and E320 11.3.x Hardware Guide

Page 93

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 77

•

Troubleshooting Power Failures on page 78

•

Understanding Status LEDs to Troubleshoot on page 78

•

Monitoring Temperatures of Modules on page 83

•

Resetting Line Modules and SRP Modules on page 84

•

Double-Bit Errors on SRP Modules on page 84

Diagnosing Problems

When you first encounter a system problem:

1. Make sure power connections are secure attached.

Initialization Sequence

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 111 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.

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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E120 and E320 11.3.x Hardware Guide

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 89 for specifications of power consumption and heat dissipation. If you suspect a power problem, see Table 9 on page 78.

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:

1. Verify that all power connections are correct.

2. Verify that the power supply is delivering the correct voltage, current, and wattageto the system. See “System Specifications” on page 89.

3. If the system still doesnot operate, contact the Juniper Networks Technical Assistance Center (JTAC).

The following actions apply to all of the possible problems:

1. Verify that power connections are properly attached.

2. Verify that system is receiving power.

3. Look to see whether or not the LEDs are lit.

4. Run diagnostics on SRP and line modules.

5. If system does not reset, contact JTAC.

Understanding Status LEDs to Troubleshoot

Module LEDscan showyou 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 sothat you can easily detect and correct a module-relatedproblem with minimal or no system downtime.

LED Identification

Most modules have two sets ofstatus LEDs. The top setindicatesbasic 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 79 and Figure 33on page 79for LED locations and labeling.See Table 10 on page 80 for descriptions of LED activity for all modules and IOAs.

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Figure 32: Typical IOA LEDs

Chapter 9: Troubleshooting

Figure 33: SRP IOA Module LEDs

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E120 and E320 11.3.x Hardware Guide

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 theroleof 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.

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Table 10: LED Identification and Activity Descriptions (continued)

Chapter 9: Troubleshooting

ON to OFFOFF to ONLED ColorLED IndicatorLED LabelLED Location

GreenPower APA

source A.

GreenPower BPB

source B.

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

Ethernet link is up.GreenEthernet linkLK

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.

Blinks when Ethernet traffic is on link.

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.

IOAs

LED Activity

NOTE: Not all IOAs have the following LEDs.

YellowPort statusALM

RedPort status

Port statusOK

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

Port is experiencing loss of signal.

Physical link is connected properly and is functioning properly.

No FERF present, port is working correctly.

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 82 and Table 12 on page 82 to understand normal and abnormal LED activity.

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Table 11: Normal Activity of Functional Status LEDs During Booting

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

Status ProcessONLINEFAILOK

offoffoff

offonoff

1. Moduleis in thepower-uprestart 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

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.

1. Make sure Power A and Power B terminal connections are securely attached.

2. Verify that power switches are on.

3. Make sure connections to power sources are securely attached.

4. If systemstill doesnot operate,contactthe Juniper Networks Technical Assistance Center.

•

FAIL LED lights

The line module and IOA are incompatible.

•

A hardware failure, such as a failed module.

1. Make sure that the line modules and IOAs are compatible; replace if necessary.

2. If you replaced the IOA only,issue thereload slot slot_number command.

3. If you replaced the line module or if there was a hardware failure, the system is supposed to automatically reset the module.

4. If the condition persists, contact the Juniper Networks Technical Assistance Center.

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Table 12: Troubleshooting Abnormal LED Activity on Modules (continued)

ActionsPossible ProblemsDiagnostic Signs

Chapter 9: Troubleshooting

•

FAN OK LED does not light

•

FAN FAIL LED lights

ALM LED is red

ALM LED is yellow

•

Fan is not working properly or has slowed down.

•

Fan needs replacement.

•

Ethernet connection is down.LINK LED is not lit

•

System does not recognize a port connection.

•

Cabling is not connected properly.

•

Cable is faulty.

•

Clocking problem exists.

•

Far end receive failure (FERF) exists.

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.

1. Make sure that Ethernet cables are properly connected to both the Ethernet port and the appropriate network device.

2. If the condition persists, contact the Juniper Networks Technical Assistance Center.

1. Make sure that all cables are firmly plugged into the ports and the attached network device.

2. Verify that cables are clean.

3. Test for faulty cables.

4. Verify clock source and configuration.

5. Reset the system.

NOTE:Problemis correctedwhen normalLED activity occurs.

1. Correct FERF problem.

2. Reset the system.

NOTE:Problemis correctedwhen normalLED activity occurs.

•

PA, FO, and LK LEDs on SRPmoduleare on, but are off on LM and SFM module

Thermal protection mode has been enabled.

•

System temperature is too high.

•

Vents are blocked.

•

Fans are not operating.

Monitoring Temperatures of Modules

You can view the temperature of each module by issuing the show environment all and show environment table commands. In addition, the system generates detailed log

messages if the temperature of a module is outside normal operating limits.

For example, if the temperature of any forwarding controller exceeds 212°F (100°C), a message appears on the console and the event is added to the system log. If you receive this message, report it to your customer service representative.

1. Look at your console for a message indicating the problem. If you have the system log set to a severity of WARNING or higher, a Warning message indicates the failure.

2. Issue the show environment command to display the temperatures. If the temperature is too high, power down the system.

3. Regulate temperature.

4. Reset the system.

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E120 and E320 11.3.x Hardware Guide

If the temperature of any module exceeds the upper temperature limit, the system immediately goes into thermal protection mode. After the system has entered thermal protection mode, you must resolve the cause of the high temperature quickly.

Table 13: Troubleshooting High-Temperature Conditions

Cause of High Operating Temperature

ResolutionSymptoms

Air vents to system are blocked

specifications. (See “System Specifications” on page 89.)

Ambient temperature exceeds specifications

One or more cooling fans have failed

Ambient temperature exceeds specifications. (See “System Specifications” on page 89.)

•

FAN OK LED (FO) on SRP module is not illuminated.

•

FAN FAIL LED (FF) on SRP module is illuminated.

FAIL LED on module is illuminated.A module fails

When you have resolved the cause of the high temperature, the system automatically resumes operation. For example, if the system entered thermal protection mode and you replaced the fan tray, a chassis reboot is not required. The system automatically restores power to the LM and SFM modules.

Resetting Line Modules and SRP Modules

Line modules and SRP modules have two recessed buttons that enable you to reset the software or module. You can use the NMI button to reset the software on the module and the module reset button to reset the module. See Figure 5 on page 8.

Increase space around system.Space around system does not meet

Provide extra cooling or heating in the room where the system is located.

Replace fan tray. (See “Maintaining the Router” on page 67.)

Replace module. (See “Installing Modules” on page 25.)

If a line module fails to respond for an extended time, a software problem might exist with that module. You can depress the NMI button with a paper clip to suspend the current software task. Depending onthe situation, this actionmight also reset thesoftware on the module.

If depressing the software reset button fails to correct the issue with the line module, depress the module reset button. This action reboots the line module.

The buttons work in the same way for the SRP module. Depressing the module reset button on an SRP module is equivalent to rebooting the router and causes all the line modules to reboot.

Double-Bit Errors on SRP Modules

SRP modules include error checking and correction (ECC) to protect their SDRAM. ECC provides error detection of single-bit and double-bit errors and correction of single-bit errors for the SDRAM as follows:

Juniper E SERIES BROADBAND SERVICES ROUTERS 11.3.X - E120 AND E320 HARDWARE GUIDE REV 9-29-2010, E120, E320 Hardware Manual

Specifications and Main Features

Frequently Asked Questions

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