Juniper M120 Hardware Manual

M120 Multiservice Edge Router

Hardware Guide

Published: 2010-10-15

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

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

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

GateD software copyright © 1995, the Regents of the University. All rights reserved. Gate Daemon was originated and developed through release 3.0 by Cornell University and its collaborators. Gated is based on Kirton’s EGP, UC Berkeley’s routing daemon (routed), and DCN’s HELLO routing protocol. Development of Gated has been supported in part by the National Science Foundation. Portions of the GateD software copyright © 1988, Regents of the University of California. All rights reserved. Portions of the GateD software copyright © 1991, D. L. S. Associates.

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.

M120 Multiservice Edge Router Hardware Guide

Writing: Sheila Nolte Editing: Stella Hackell, Fran Mues Illustration: Faith Bradford Brown Cover Design: Edmonds Design

Revision History October 2010—Corporate rebranding. August 2010—Corporate rebranding. January 2010—Corrected power supply terminology. Updated FPC description. November 2009—Updated LED amber to yellow and updated power supply terminology. October 2009—Updated product names. Revised sections into modular topics for easier customer access. 12 October 2008—530-017784-01 Revision 4. Added external clock synchronization. 29 June 2007—530-017784-01 Revision3. Added airfilter replacement recommendation.Added additional safety information and DC input voltages. Updated the connect DC power procedure. 30 March 2007—530-017784-01 Revision 2. Updated AC plug information and added the design specification for the Italian AC power cord. 12 January 2007—530-017784-01 Revision 1. Added FEB redundancy support. 2 November 2006—530-014640-01 Revision 2. Updated FPC Type 2 throughput. 6 October 2006—530-014640-01 Revision 1. Initial Release

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

YEAR 2000 NOTICE

Juniper Networks hardware and software products are Year 2000 compliant. The Junos OS has no known time-related limitations through the year 2038. However, the NTP application is known to have some difficulty in the year 2036.

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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) CONSENTTO BEBOUND BY THISAGREEMENT. IF YOUDO NOTOR CANNOT AGREE TO THE TERMS CONTAINED HEREIN, THEN (A) DO NOT DOWNLOAD, INSTALL, OR USE THE SOFTWARE, AND (B) YOU MAY CONTACT JUNIPER NETWORKS REGARDING LICENSE TERMS.

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

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

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

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

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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 any third party without the prior written consent of Juniper; or (l) use the Software in any manner other than as expressly provided herein.

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8. Warranty, Limitation of Liability, Disclaimer of Warranty. The warranty applicable to the Software shall be as set forth in the warranty statementthat accompanies theSoftware(the “Warranty Statement”). Nothingin this Agreementshall give riseto any obligation tosupport 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 COSTSOR PROCUREMENTOF SUBSTITUTE GOODSOR SERVICES,OR FORANY SPECIAL, INDIRECT,OR CONSEQUENTIALDAMAGES ARISING OUTOF THIS AGREEMENT,THE SOFTWARE, ORANY JUNIPEROR JUNIPER-SUPPLIED SOFTWARE. INNO EVENT SHALLJUNIPER 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.

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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.

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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 confirm that this Agreement and all related documentation is and will be in the English language)).

Table of Contents

About the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

Junos OS Documentation and Release Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiv

Documentation Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiv

Documentation Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv

Requesting Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

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

Opening a Case with JTAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvii

Part 1 Overview of the M120 Multiservice Edge Router

Chapter 1 Overview of the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

M120 Router Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Chapter 2 M120 Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

M120 Component Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

M120 Router Chassis Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

M120 Midplane Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

M120 Flexible PIC Concentrators (FPCs) Overview . . . . . . . . . . . . . . . . . . . . . . . . . 9

FPC Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

FPC Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

FPC Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

M120 Compact FPCs (CFPCs) Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

CFPC Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

CFPC Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

M120 FPCs and CFPCs Supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

M120 PICs Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

M120 Forwarding Engine Boards (FEBs) Overview . . . . . . . . . . . . . . . . . . . . . . . . . 16

M120 Forwarding Engine Boards (FEBs) Description . . . . . . . . . . . . . . . . . . . . 16

FEB Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

M120 Forwarding Engine Boards (FEBs) LEDs . . . . . . . . . . . . . . . . . . . . . . . . . 17

M120 Host Subsystem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

M120 Routing Engine Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

M120 Routing Engine Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Routing Engine Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Routing Engine Boot Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

M120 Routing Engine LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

M120 Multiservice Edge Router Hardware Guide

M120 Control Board (CB) Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

M120 Control Board (CB) Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

M120 Control Board (CB) LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

M120 Craft Interface Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

M120 Craft Interface Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Alarm LEDs and Alarm Cutoff/Lamp Test Button on the M120 Craft

Routing Engine Interface Ports and Status Indicators on the M120 Craft

External Clock Interface Ports on the M120 Craft Interface . . . . . . . . . . . . . . . 25

Host Subsystem LEDs on the M120 Craft Interface . . . . . . . . . . . . . . . . . . . . . 26

FEB LEDs on the M120 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

FPC LEDs on the M120 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Power Supply LEDs on the M120 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . 28

Alarm Relay Contacts on the M120 Craft Interface . . . . . . . . . . . . . . . . . . . . . 28

M120 Power Supplies Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

M120 Power Supplies Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

M120 AC Power Supply Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

M120 AC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

M120 DC Power Supply Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

M120 DC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

M120 Cooling System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

M120 Cable Management System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

CB Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Part 2 Setting Up the M120 Router

Chapter 3 Preparing the Site for M120 Router Installation . . . . . . . . . . . . . . . . . . . . . . . . 37

M120 Site Preparation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

M120 Cabinet Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

M120 Cabinet Size and Clearance Requirements . . . . . . . . . . . . . . . . . . . . . . 38

M120 Cabinet Airflow Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

M120 Rack Mounting Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

M120 Clearance Requirements for Airflow and Hardware Maintenance . . . . . . . . 41

Chapter 4 Unpacking the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

M120 Router Installation Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Tools and Parts Required to Unpack the M120 Router . . . . . . . . . . . . . . . . . . . . . . 44

Unpacking the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Verifying M120 Parts Received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Chapter 5 Installing the M120 Router Mounting Hardware . . . . . . . . . . . . . . . . . . . . . . . 49

Installing the Mounting Hardware for a Front-Mount Four-Post Rack or

Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Installing the Mounting Hardware for a Front-Mount Open-Frame Rack . . . . . . . 51

Installing the Mounting Hardware for a Center-Mount Open-Frame Rack . . . . . . 53

Chapter 6 Installing the M120 Router with a Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Tools Required to Install the M120 Router Using a Mechanical Lift . . . . . . . . . . . . 55

Installing the M120 Router Using a Mechanical Lift . . . . . . . . . . . . . . . . . . . . . . . . 55

Table of Contents

Chapter 7 Installing the M120 Router Without a Mechanical Lift . . . . . . . . . . . . . . . . . . 59

Tools and Parts Required to Install the M120 Router Without a Mechanical

Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Removing Components from the Chassis Before Installing the M120 Router

Without a Mechanical Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Removing the Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Removing FEBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Removing CBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Removing a Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Removing the Cable Management System . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Removing FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Removing a CFPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Installing the M120 Router Without Using a Mechanical Lift . . . . . . . . . . . . . . . . . 69

Reinstalling Components in the Chassis After Installing the M120 Router Without

a Mechanical Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Reinstalling CBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Reinstalling the FEBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Reinstalling the Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Reinstalling FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Reinstalling a CFPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Reinstalling the Fan Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Reinstalling the Cable Management System . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Chapter 8 Grounding the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Connecting the Grounding Cable to the M120 Router . . . . . . . . . . . . . . . . . . . . . . 79

Chapter 9 Connecting the M120 Router to External Devices . . . . . . . . . . . . . . . . . . . . . . 81

Tools and Parts Required to Connect the M120 Router . . . . . . . . . . . . . . . . . . . . . . 81

Connecting the M120 Router to Management and Alarm Devices . . . . . . . . . . . . . 81

Connecting the M120 Router to a Management Console or Auxiliary

Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Connecting the M120 Router to a Network for In-Band Management . . . . . . 84

Connecting the M120 Router to an External Alarm-Reporting Device . . . . . . 85

Connecting PIC Cables to the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Chapter 10 Providing Power to the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Connecting Power to an AC-Powered M120 Router . . . . . . . . . . . . . . . . . . . . . . . . 89

Connecting Power to a DC-Powered M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . 91

Powering On the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Powering Off the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Chapter 11 Configuring Junos OS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Initially Configuring Junos OS on the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . 95

M120 Multiservice Edge Router Hardware Guide

Part 3 Hardware Maintenance, Troubleshooting, and Replacement

Procedures

Chapter 12 Maintaining M120 Router Hardware Components . . . . . . . . . . . . . . . . . . . . . 101

Tools and Parts Required to Maintain M120 Hardware Components . . . . . . . . . . 101

Routine Maintenance Procedures on the M120 Router . . . . . . . . . . . . . . . . . . . . . 101

Maintaining the M120 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Maintaining the M120 Fan Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Maintaining the M120 Host Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Maintaining M120 FPCs and CFPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Holding an M120 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Storing an M120 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Maintaining M120 PICs and PIC Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Maintaining the M120 FEBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Maintaining the M120 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Chapter 13 Troubleshooting M120 Hardware Components . . . . . . . . . . . . . . . . . . . . . . . 117

Overview of Troubleshooting Resources for the M120 Router . . . . . . . . . . . . . . . . 117

Troubleshooting Using the Command-Line Interface . . . . . . . . . . . . . . . . . . . 117

Troubleshooting Using the Chassis and Interface Alarm Messages . . . . . . . . 118

Troubleshooting Using the Juniper Networks Technical Assistance

M120 LED Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Craft Interface LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Component LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Troubleshooting the M120 Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Troubleshooting M120 FPCs and CFPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Troubleshooting M120 PICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Troubleshooting M120 FEBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Troubleshooting an M120 FEB When a Chassis Alarm Is Lit Upon Initial Startup

or Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

Troubleshooting the M120 Power System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

Chapter 14 Replacing M120 Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

M120 Field-Replaceable Units (FRUs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Tools and Parts Required to Replace M120 Components . . . . . . . . . . . . . . . . . . . 128

Replacing the M120 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Removing the M120 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Installing the M120 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Replacing Connections to M120 Routing Engine Interface Ports . . . . . . . . . . . . . 132

Replacing the Management Ethernet Cable on the M120 Routing Engine . . 132

Replacing the Console or Auxiliary Cable on the M120 Routing Engine . . . . . 133

Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Table of Contents

Replacing Alarm Relay Wires on the M120 Craft Interface . . . . . . . . . . . . . . . 133

Replacing M120 Cooling System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Replacing an M120 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Removing an M120 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Installing an M120 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Replacing an M120 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Removing the M120 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Installing the M120 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Replacing M120 Host Subsystem Components . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Taking the M120 Host Subsystem Offline . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Replacing an M120 CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

Removing an M120 CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

Installing an M120 CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

Replacing a DIMM Module in M120 Routing Engines . . . . . . . . . . . . . . . . . . . 145

Removing a M120 DIMM Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

Installing a M120 DIMM Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Replacing an M120 Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

Removing an M120 Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

Installing an M120 Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

Replacing Packet Forwarding Engine Components . . . . . . . . . . . . . . . . . . . . . . . 149

Replacing an M120 FEB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

Removing an M120 FEB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

Installing an M120 FEB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

Replacing an M120 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Removing an M120 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Installing an M120 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

Replacing an M120 CFPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Removing an M120 CFPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Installing an M120 CFPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Replacing an M120 PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

Removing an M120 PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

Installing an M120 PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

Replacing an M120 PIC Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Removing an M120 PIC Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Installing an M120 PIC Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Replacing an SFP or XFP Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

Removing an SFP or XFP Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

Installing an SFP or XFP Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Replacing an M120 XENPAK Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Removing an M120 XENPAK Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Installing an M120 XENPAK Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

M120 Multiservice Edge Router Hardware Guide

Replacing M120 Power System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

Replacing an M120 AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

Replacing an M120 DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Replacing an M120 AC Power Supply Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

Replacing an M120 DC Power Supply Cable . . . . . . . . . . . . . . . . . . . . . . . . . . 183

Part 4 Appendixes

Appendix A Safety and Regulatory Compliance Information for the M120 Router . . . . 187

Definition of Safety Warning Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

General Safety Guidelines for M Series, MX Series, and T Series Routers . . . . . . 189

General Safety Warnings for M Series, MX Series, and T Series Routers . . . . . . . 190

Qualified Personnel Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

Restricted Access Area Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

Preventing Electrostatic Discharge Damage to an M120 Router . . . . . . . . . . . . . . 192

Fire Safety Requirements for M Series, MX Series, and T Series Routers . . . . . . . 193

General Fire Safety Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Fire Suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Fire Suppression Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

M120 Router Installation Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . 194

M120 Chassis Lifting Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

Installation Safety Warnings for M Series, MX Series, and T Series

Laser and LED Safety Guidelines and Warnings for the M120 Router . . . . . . . . . 200

General Laser Safety Guidelines for the M120 Router . . . . . . . . . . . . . . . . . 200

M120 Laser and LED Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

Maintenance and Operational Safety Warnings for M Series, MX Series, and T

Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

Battery Handling Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

Jewelry Removal Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204

Lightning Activity Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

Operating Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

Product Disposal Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

Removing an M120 AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

Installing an M120 AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

Removing an M120 DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 178

Installing an M120 DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

Installation Instructions Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

Rack-Mounting Requirements and Warnings . . . . . . . . . . . . . . . . . . . . . 196

Ramp Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199

Class 1 Laser Product Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

Class 1 LED Product Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

Laser Beam Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202

Radiation from Open Port Apertures Warning . . . . . . . . . . . . . . . . . . . . 202

Table of Contents

General Electrical Safety Guidelines and Warnings Electrical Codes for the M120

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208

General Electrical Safety Warnings for M Series, MX Series, and T Series

Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208

Grounded Equipment Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209

Grounding Requirements and Warning . . . . . . . . . . . . . . . . . . . . . . . . . 209

Midplane Energy Hazard Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210

Multiple Power Supplies Disconnection Warning . . . . . . . . . . . . . . . . . . 210

Power Disconnection Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

TN Power Warning for the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212

In Case of an Electrical Accident . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

AC Power Electrical Safety Guidelines for the M120 Router . . . . . . . . . . . . . . 213

Japanese AC Power Cord Warning for M Series and MX Series Routers . . . . 214

DC Power Electrical Safety Warnings for M Series, MX Series, and T Series

Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214

DC Power Copper Conductors Warning . . . . . . . . . . . . . . . . . . . . . . . . . . 214

DC Power Disconnection Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

DC Power Wiring Terminations Warning . . . . . . . . . . . . . . . . . . . . . . . . . 216

DC Power Electrical Safety Guidelines for the M120 . . . . . . . . . . . . . . . . . . . . 217

Agency Approvals and Compliance Statements for the M120 Router . . . . . . . . . 218

Agency Approvals for M120 Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

Compliance Statements for NEBS for the M120 Router . . . . . . . . . . . . . . . . 220

Compliance Statements for EMC Requirements for the M120 Router

(European Community) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

Compliance Statements for EMC Requirements for M Series, MX Series,

and T Series Routers (United States) . . . . . . . . . . . . . . . . . . . . . . . . . . . 222

Compliance Statements for EMC Requirements for M Series, MX Series,

and T Series Routers (Japan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222

Compliance Statements for EMC Requirements for M Series, MX Series,

and T Series Routers (Canada) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

Compliance Statements for Environmental Requirements for M Series, MX

Series, and T Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

Compliance Statements for Acoustic Noise for the M120 Router . . . . . . . . . 223

Appendix B M120 Router Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

M120 Router Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

Appendix C M120 Router Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 227

M120 Router Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

M120 Multiservice Edge Router Hardware Guide

Appendix D Power Guidelines, Requirements, and Specifications for the M120

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

M120 Chassis Grounding Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

M120 Router AC Power Specifications and Requirements . . . . . . . . . . . . . . . . . . 230

Electrical Specifications for the M120 AC Power Supply . . . . . . . . . . . . . . . . 230

M120 AC Power, Connection, and Power Cord Specifications . . . . . . . . . . . . 231

M120 Router DC Power Specifications and Requirements . . . . . . . . . . . . . . . . . . 233

Electrical Specifications for the M120 DC Power Supply . . . . . . . . . . . . . . . . 233

M120 DC Power, Connection, and Cable Specifications . . . . . . . . . . . . . . . . 234

Site Electrical Wiring Guidelines for M Series, MX Series, and T Series

Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

M120 Router Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

Appendix E Cable and Wire Guidelines and Specifications for the M120 Router . . . . . 241

Fiber-Optic Specifications and Guidelines for the M120 Router . . . . . . . . . . . . . . 241

Fiber-Optic and Network Cable Specifications for the M120 Router . . . . . . . 241

Signal Loss in Multimode and Single-Mode Fiber-Optic Cable for the M120

Attenuation in M120 SONET/SDH PICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242

M120 Attenuation and Dispersion in Fiber-Optic Cable . . . . . . . . . . . . . . . . 243

Calculating Power Budget for Fiber-Optic Cable for M Series, MX Series,

Calculating Power Margin for Fiber-Optic Cable for M Series, MX Series, and

Routing Engine Interface Cable and Wire Specifications for the M120 Router . . 246

Appendix F M120 Cable Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

RJ-45 Connector Pinouts for the M120 Routing Engine ETHERNET Port . . . . . . . 247

RJ-45 Connector Pinouts for the Routing Engine AUX and CONSOLE Ports . . . 248

RJ-45 Connector Pinouts for the External Clock Ports . . . . . . . . . . . . . . . . . . . . . 248

RJ-48 Cable Pinouts for E1 and T1 PICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249

M120 X.21 and V.35 Cable Pinouts for EIA-530 PIC . . . . . . . . . . . . . . . . . . . . . . . . 252

M120 Fast Ethernet PIC 48-Port Cable Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . 254

Appendix G Contacting Customer Support and Returning M120 Hardware . . . . . . . . . 257

Locating M120 Component Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257

Displaying M120 Router Components and Serial Numbers . . . . . . . . . . . . . . 257

M120 Chassis Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259

M120 CB Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259

M120 FEB Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259

M120 FPC Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

M120 CFPC Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

M120 PIC Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261

M120 Power Supply Serial Number Labels . . . . . . . . . . . . . . . . . . . . . . . . . . 262

M120 Routing Engine Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . 263

Contacting Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263

Returning a Hardware Component to Juniper Networks, Inc. . . . . . . . . . . . . . . . 264

Tools and Parts Required to Remove Components from an M120 Router . . . . . 265

Packing the M120 Router for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265

Guidelines for Packing M120 Components for Shipment . . . . . . . . . . . . . . . . . . . 267

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242

and T Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244

T Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244

Part 5 Index

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271

Table of Contents

M120 Multiservice Edge Router Hardware Guide

List of Figures

Part 1 Overview of the M120 Multiservice Edge Router

Chapter 2 M120 Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 1: Front View of a Fully Configured M120 Router Chassis . . . . . . . . . . . . . . . . 7

Figure 2: Rear View of a Fully Configured AC-Powered M120 Router Chassis . . . . . 7

Figure 3: Rear View of a Fully Configured DC-Powered M120 Router Chassis . . . . . 8

Figure 4: M120 Midplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 5: FPC and CFPCs Installed in an M120 Router Chassis . . . . . . . . . . . . . . . . 10

Figure 6: FPC1, FPC2, and FPC3 for the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 7: FPC and CFPCs Installed in an M120 Router Chassis . . . . . . . . . . . . . . . . 13

Figure 8: Ethernet 10GBASE XFP CFPC for the M120 Router . . . . . . . . . . . . . . . . . 13

Figure 9: M120 FEB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 10: M120 Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 11: USB Memory Device in an M120 Routing Engine . . . . . . . . . . . . . . . . . . . 20

Figure 12: M120 CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 13: Front Panel of the M120 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 14: M120 AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 15: M120 DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 16: Airflow Through the M120 Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 17: M120 Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 18: M120 Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 19: M120 Cable Management System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Part 2 Setting Up the M120 Router

Chapter 3 Preparing the Site for M120 Router Installation . . . . . . . . . . . . . . . . . . . . . . . . 37

Figure 20: Typical Open-Frame Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Figure 21: M120 Chassis Dimensions and Clearance Requirements . . . . . . . . . . . . 42

Chapter 4 Unpacking the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Figure 22: Contents of the M120 Shipping Container . . . . . . . . . . . . . . . . . . . . . . . 45

Chapter 5 Installing the M120 Router Mounting Hardware . . . . . . . . . . . . . . . . . . . . . . . 49

Figure 23: Installing the M120 Mounting Hardware for a Four-Post Rack or

Figure 24: Installing the M120 Mounting Hardware for an Open-Frame Rack . . . . 53

Chapter 6 Installing the M120 Router with a Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Figure 25: Installing the M120 Router in the Rack . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Chapter 7 Installing the M120 Router Without a Mechanical Lift . . . . . . . . . . . . . . . . . . 59

Figure 26: Removing a Power Supply Before Installing the M120 Router . . . . . . . . 61

Figure 27: Removing a FEB Before Installing the M120 Router . . . . . . . . . . . . . . . . 62

Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

M120 Multiservice Edge Router Hardware Guide

Figure 28: Removing a CB Before Installing the M120 Router . . . . . . . . . . . . . . . . 63

Figure 29: Removing an Upper Front Fan Tray Before Installing the M120

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Figure 30: Removing a Lower Rear Fan Tray Before Installing the M120

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Figure 31: Removing the Cable Management System Before Installing the M120

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Figure 32: Removing an FPC Before Installing the M120 Router . . . . . . . . . . . . . . . 67

Figure 33: Removing a CFPC Before Installing the M120 Router . . . . . . . . . . . . . . 68

Figure 34: Installing the M120 Router in the Rack . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Figure 35: Reinstalling a CB After Installing the M120 Router . . . . . . . . . . . . . . . . . 72

Figure 36: Reinstalling a FEB After Installing the M120 Router . . . . . . . . . . . . . . . . 73

Figure 37: Reinstalling a Power Supply After Installing the M120 Router . . . . . . . . 74

Figure 38: Reinstalling an FPC After Installing the M120 Router . . . . . . . . . . . . . . . 75

Figure 39: Reinstalling a CFPC After Installing the M120 Router . . . . . . . . . . . . . . 76

Figure 40: Reinstalling a Front Fan Tray After Installing the M120 Router . . . . . . . 77

Chapter 8 Grounding the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Figure 41: Connecting the Grounding Cable to the M120 Router . . . . . . . . . . . . . . 80

Chapter 9 Connecting the M120 Router to External Devices . . . . . . . . . . . . . . . . . . . . . . 81

Figure 42: M120 Routing Engine Management Ports and Alarm Relay

Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Figure 43: M120 Console and Auxiliary Serial Port Connector . . . . . . . . . . . . . . . . 83

Figure 44: M120 Routing Engine Management Ports and Alarm Relay

Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Figure 45: M120 Routing Engine Ethernet Cable Connector . . . . . . . . . . . . . . . . . . 85

Figure 46: M120 Routing Engine External Device Ports . . . . . . . . . . . . . . . . . . . . . 85

Figure 47: M120 Routing Engine Alarm Relay Contacts . . . . . . . . . . . . . . . . . . . . . 86

Figure 48: Attaching a Cable to an M120 PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Chapter 10 Providing Power to the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Figure 49: Connecting AC Power to the M120 Router . . . . . . . . . . . . . . . . . . . . . . . 90

Figure 50: Connecting DC Power to the M120 Router . . . . . . . . . . . . . . . . . . . . . . . 91

Part 3 Hardware Maintenance, Troubleshooting, and Replacement

Procedures

Chapter 12 Maintaining M120 Router Hardware Components . . . . . . . . . . . . . . . . . . . . . 101

Figure 51: Holding an M120 FPC Vertically . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Figure 52: Holding an M120 FPC Horizontally . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Figure 53: Do Not Grasp the Connector Edge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Figure 54: Do Not Carry an FPC with Only One Hand . . . . . . . . . . . . . . . . . . . . . . 110

Figure 55: Do Not Rest the FPC on an Edge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Chapter 14 Replacing M120 Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Figure 56: Removing the M120 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Figure 57: Installing the M120 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Figure 58: M120 Routing Engine Interface Ports and Alarm Relay Contacts . . . . . 132

Figure 59: M120 Ethernet Cable Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Figure 60: M120 Routing Engine Interface Ports and Alarm Relay Contacts . . . . 132

List of Figures

Figure 61: M120 Routing Engine Interface Ports and Alarm Relay Contacts . . . . . 133

Figure 62: M120 Routing Engine Interface Ports and Alarm Relay Contacts . . . . 134

Figure 63: Removing an M120 Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . 135

Figure 64: Removing an M120 Lower Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . 136

Figure 65: Installing an M120 Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . 137

Figure 66: Installing an M120 Lower Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . 137

Figure 67: Removing the M120 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Figure 68: Installing the M120 Front Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Figure 69: Removing an M120 CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

Figure 70: Installing an M120 CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

Figure 71: Installing the DIMM Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Figure 72: Removing an M120 Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

Figure 73: Installing an M120 Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

Figure 74: Removing an M120 FEB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

Figure 75: Installing an M120 FEB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

Figure 76: Removing an M120 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

Figure 77: Installing an M120 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Figure 78: Connecting Fiber-Optic Cable to an M120 PIC . . . . . . . . . . . . . . . . . . . 157

Figure 79: Removing an M120 CFPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Figure 80: Installing an M120 CFPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

Figure 81: Removing an M120 PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

Figure 82: Installing an M120 PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Figure 83: Connecting Fiber-Optic Cable to an M120 PIC . . . . . . . . . . . . . . . . . . . 167

Figure 84: Removing M120 SFPs or XFPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Figure 85: Removing a M120 XENPAK Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

Figure 86: Installing a M120 XENPAK Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

Figure 87: Removing an M120 AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . 175

Figure 88: Rear of the M120 Power Supply Showing Midplane Connector . . . . . . 175

Figure 89: Installing an M120 AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Figure 90: Disconnecting Power Cables from the M120 DC Power Supply . . . . . 178

Figure 91: Removing an M120 DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . 179

Figure 92: Installing an M120 DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

Figure 93: Connecting Power Cables to the M120 DC Power Supply . . . . . . . . . . 182

Part 4 Appendixes

Appendix A Safety and Regulatory Compliance Information for the M120 Router . . . . 187

Figure 94: Placing a Component into an Electrostatic Bag . . . . . . . . . . . . . . . . . . 193

Appendix D Power Guidelines, Requirements, and Specifications for the M120

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

Figure 95: M120 DC Power and Grounding Cable Lug . . . . . . . . . . . . . . . . . . . . . 230

Figure 96: M120 AC Plug Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232

Figure 97: Typical DC Source Cabling to the M120 Router . . . . . . . . . . . . . . . . . . 235

Appendix F M120 Cable Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

Figure 98: M120 EIA-530 PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253

Figure 99: Fast Ethernet 48-port PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255

Figure 100: VHDCI to RJ-21 Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255

Appendix G Contacting Customer Support and Returning M120 Hardware . . . . . . . . . 257

M120 Multiservice Edge Router Hardware Guide

Figure 101: Serial Number ID Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258

Figure 102: M120 Chassis Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . 259

Figure 103: M120 CB Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259

Figure 104: M120 FEB Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

Figure 105: M120 FPC Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

Figure 106: M120 Routing Engine Serial Number Label . . . . . . . . . . . . . . . . . . . . . 261

Figure 107: M120 PIC Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261

Figure 108: M120 AC Power Supply Serial Number Label . . . . . . . . . . . . . . . . . . . 262

Figure 109: M120 DC Power Supply Serial Number Label . . . . . . . . . . . . . . . . . . 262

Figure 110: M120 Routing Engine Serial Number Label . . . . . . . . . . . . . . . . . . . . . 263

List of Tables

About the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

Table 1: Notice Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiv

Table 2: Text and Syntax Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiv

Part 1 Overview of the M120 Multiservice Edge Router

Chapter 2 M120 Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Table 3: FPCs Supported by the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Table 4: CFPCs Supported by the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Table 5: M120 FEB LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 6: M120 Routing Engine LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Table 7: M120 Control Board LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Table 8: M120 Alarm LEDs and Alarm Cutoff/Lamp Test Button . . . . . . . . . . . . . . 24

Table 9: External Clock LEDs on the M120 Craft Interface . . . . . . . . . . . . . . . . . . . 26

Table 10: M120 Host Subsystem LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Table 11: FEB LEDs on the M120 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Table 12: M120 FPC LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Table 13: Power Supply LEDs on the M120 Craft Interface . . . . . . . . . . . . . . . . . . . 28

Table 14: M120 Power Supply LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Part 2 Setting Up the M120 Router

Chapter 3 Preparing the Site for M120 Router Installation . . . . . . . . . . . . . . . . . . . . . . . . 37

Table 15: M120 Site Preparation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Table 16: M120 Rack Requirements and Specifications . . . . . . . . . . . . . . . . . . . . . 39

Chapter 4 Unpacking the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Table 17: Parts List for a Fully Configured M120 Router . . . . . . . . . . . . . . . . . . . . . 46

Table 18: Accessory Box Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Chapter 5 Installing the M120 Router Mounting Hardware . . . . . . . . . . . . . . . . . . . . . . . 49

Table 19: Four-Post Rack or Cabinet Mounting Hole Locations for the M120

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Table 20: Open-Frame Rack Mounting Hole Locations for the M120 Router . . . . . 52

Part 3 Hardware Maintenance, Troubleshooting, and Replacement

Procedures

Chapter 14 Replacing M120 Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Table 21: M120 Field-Replaceable Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Table 22: Tools and Parts Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Table 23: Effect of Taking the M120 Host Subsystem Offline . . . . . . . . . . . . . . . . 141

M120 Multiservice Edge Router Hardware Guide

Part 4 Appendixes

Appendix B M120 Router Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

Table 24: M120 Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

Appendix C M120 Router Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 227

Table 25: M120 Router Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . 227

Appendix D Power Guidelines, Requirements, and Specifications for the M120

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

Table 26: AC Power Supply Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . 230

Table 27: AC Power Cord Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232

Table 28: DC Power Supply Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . 233

Table 29: M120 DC Power and Grounding Cable Specifications . . . . . . . . . . . . . 236

Table 30: Power System Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . 237

Table 31: AC Power Supply Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . 238

Table 32: DC Power Supply Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . 238

Table 33: Component Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

Appendix E Cable and Wire Guidelines and Specifications for the M120 Router . . . . . 241

Table 34: Estimated Values for Factors Causing Link Loss . . . . . . . . . . . . . . . . . . 245

Table 35: Routing Engine Interface Cable and Wire Specifications . . . . . . . . . . . 246

Appendix F M120 Cable Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

Table 36: RJ-45 Connector Pinout for the Routing Engine ETHERNET Port . . . . 247

Table 37: RJ-45 Connector Pinout for the Routing Engine AUX and CONSOLE

Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248

Table 38: RJ-45 Connector Pinout for the External Interface Ports . . . . . . . . . . . 249

Table 39: RJ-48 Connector to RJ-48 Connector (Straight) Pinout for the

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249

Table 40: RJ-48 Connector to RJ-48 Connector (Crossover) Pinout for the

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250

Table 41: RJ-48 Connector to DB-15 Connector (Straight) Pinout for the

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251

Table 42: RJ-48 Connector to DB-15 Connector (Crossover) Pinout for the

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251

Table 43: M120 DB-25 Connector to V.35 Connector Pinout . . . . . . . . . . . . . . . . 253

Table 44: DB-25 Connector to DB-15 (X.21) Connector Pinout . . . . . . . . . . . . . . 254

Table 45: RJ-21 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255

About the Documentation

•

Junos OS Documentation and Release Notes on page xxiii

•

Objectives on page xxiii

•

Audience on page xxiv

•

Documentation Conventions on page xxiv

•

Documentation Feedback on page xxv

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Requesting Technical Support on page xxvi

Junos OS Documentation and Release Notes

For a list of related Junos OS documentation, see

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

If the information in the latest release notes differs from the information in the documentation, follow the Junos OS 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/.

Objectives

This documentation describes hardware components, installation, basic configuration, and basic troubleshooting procedures for the Juniper Networks M120 Multiservice Edge Router. It explains how to prepare your site for router installation, unpack and install the hardware,power onthe router, perform initial software configuration, andperform routine maintenance. After completing the installation and basic configuration procedures covered in this documentation, see the Junos OS configuration guides for information about further Junos OS configuration.

NOTE: For additional information about Juniper Networks routers and the

Physical Interface Cards (PICs) they support—either corrections to or informationthat mighthave been omitted from this guide—see the hardware release notes at http://www.juniper.net/.

M120 Multiservice Edge Router Hardware Guide

Audience

This documentation is designed for network administrators who are installing and maintaining a Juniper Networks router or preparing a site for router installation. To use the documentation, you need a broad understanding of networks in general, the Internet in particular, networking principles, and network configuration. Any detailed discussion of these concepts is beyond the scope of this hardware documentation.

Documentation Conventions

Table 1 on page xxiv defines the notice icons used in this guide.

Table 1: Notice Icons

DescriptionMeaningIcon

Indicates important features or instructions.Informational note

Table 2 on page xxiv defines the text and syntax conventions used in this guide.

Table 2: Text and Syntax Conventions

Represents text that you type.Bold text like this

Fixed-width text like this

Italic text like this

Represents output that appears on the terminal screen.

•

Introduces important new terms.

•

Identifies book names.

•

Identifies RFC and Internet draft titles.

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

ExamplesDescriptionConvention

To enter configuration mode, type the

configure command:

user@host> configure

user@host> show chassis alarms

No alarms currently active

•

A policy term is a named structure that defines match conditions and actions.

•

Junos System Basics Configuration Guide

•

RFC 1997, BGPCommunities Attribute

Table 2: Text and Syntax Conventions (continued)

About the Documentation

ExamplesDescriptionConvention

Italic text like this

Text like this

| (pipe symbol)

# (pound sign)

[ ] (square brackets)

Indention and braces ( { } )

; (semicolon)

Represents variables (options for which you substitute a value) in commands or configuration statements.

Represents names of configuration statements, commands, files, and directories; IP addresses; configuration hierarchy levels; or labels on routing platform components.

Indicates a choice betweenthe mutually exclusivekeywords or variables on either side of the symbol. The set of choices is often enclosed in parentheses for clarity.

same lineas theconfiguration statement to which it applies.

Enclose a variable for which you can substitute one or more values.

Identify a level in the configuration hierarchy.

Identifies a leaf statement at a configuration hierarchy level.

Configure the machine’s domain name:

[edit] root@# set system domain-name

domain-name

•

To configure a stub area, include the

stub statement at the [edit protocols ospf area area-id] hierarchy level.

•

The console portis labeled CONSOLE.

stub <default-metric metric>;Enclose optional keywords or variables.< > (angle brackets)

broadcast | multicast

(string1 | string2 | string3)

rsvp { # Required for dynamic MPLS onlyIndicates a comment specified on the

community name members [ community-ids ]

[edit] routing-options {

static {

route default{

nexthop address; retain;

}

J-Web GUI Conventions

Bold text like this

> (bold right angle bracket)

Documentation Feedback

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

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

Represents J-Web graphical user interface (GUI) items you click or select.

Separates levels in a hierarchy of J-Web selections.

•

In the Logical Interfaces box, select All Interfaces.

•

To cancel the configuration, click Cancel.

In the configuration editor hierarchy, select Protocols>Ospf.

M120 Multiservice Edge Router Hardware Guide

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 (if applicable)

Requesting Technical Support

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

•

JTAC policies—For a complete understanding of our JTAC procedures and policies, review the JTAC User Guide located at

http://www.juniper.net/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 verify serviceentitlement by productserial number, useour Serial NumberEntitlement (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 .

About the Documentation

M120 Multiservice Edge Router Hardware Guide

PART 1

Overview of the M120 Multiservice Edge Router

•

Overview of the M120 Router on page 3

•

M120 Hardware Components on page 5

M120 Multiservice Edge Router Hardware Guide

+ 276 hidden pages

Juniper M120 Hardware Manual

Specifications and Main Features

Frequently Asked Questions

User Manual