Juniper M7I Hardware Manual

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M7i Multiservice Edge Router

Hardware Guide

Published: 2010-10-28

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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.

M7i Multiservice Edge Router Hardware Guide

Writing: Elizabeth Gardner, Jerry Isaac, Sheila Nolte Editing: Fran Mues Illustration: Faith Bradford Brown Cover Design: Edmonds Design

Revision History October 2010—Corporate rebranding. August 2010—Corporate rebranding. May 2010—Updated VCCI class B compliance for Japan. Corrected the chassis grounding procedure. July 2009—Updated product names. 10 April 2009—530-018005-01 Revision 3. Added related topics to aid in navigation. 26 January 2009—530-018005-01 Revision 2. Added Enhanced Compact Forwarding Engine Board (CFEB-E) support. 12 January 2007—530-018005-01 Revision 1. Corrected the input operating voltage range and the nominal input voltage for DC power supplies and AC power supplies. Corrected the clearance requirements. Corrected the system architecture. 20 October 2006—530-017392-01 Revision 1. Added European Community EMC Declaration of Conformity. 28 June 2006—530–014300–01 Revision 3. Addedmaximum aggregate throughput of theFIC. Corrected the packet forwardingrate. Added how much torque to apply when securing the cable on a power supply. 30 May 2006—530–014300–01 Revision 2. Corrected maximum aggregate throughput. Added power cable warning in Japanese. Added Lithium battery statement. 14 September 2005—530–014300–01 Revision 1. General updates. 5 January 2004—530–009331–01 Revision 3. Cable management information. 22 September 2003—530–009331–01 Revision 2. DC power supply information.

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24 July 2003—530–009331–01 Revision 1. First edition.

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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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) 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.

1. The Parties. The parties to this Agreement are (i) Juniper Networks, Inc. (if the Customer’s principal office is located in the Americas) or Juniper Networks (Cayman) Limited(if the Customer’s principal office islocated outside the Americas) (suchapplicable entitybeing referred to herein as “Juniper”), and (ii) the person or organization thatoriginally purchased fromJuniper oran authorizedJuniper 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 fromJuniper or an authorized Juniper reseller. “Software” also includes updates, upgrades and new releases of such software. “Embedded Software” means Software which Juniper has embedded in or loaded onto the Juniper equipment and any updates, upgrades, additions or replacements which are subsequently embedded in or loaded onto the equipment.

3. License Grant. Subject to payment 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.

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

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

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

4. Use Prohibitions. Notwithstanding the foregoing, the license provided herein does not permit the Customer to, and Customer agrees not to and shall not: (a) modify, unbundle, reverse engineer, or create derivative works based on the Software; (b) make unauthorized copies of the Software (except as necessary for backup purposes); (c) rent, sell, transfer, or grant any rights in and to any copy of the Software,in any form, to any third party;(d) remove any proprietary notices, labels, or markson or in any copy ofthe Softwareor any product in which the Software is embedded; (e) distribute any copy of the Software to any third party, including as may be embedded in Juniper equipment sold in the secondhandmarket; (f) use any‘locked’ or key-restricted feature, function, service,application, operation,or capability without first purchasing the applicable license(s) and obtaining a valid key from Juniper, even if such feature, function, service, application, operation, or capability is enabled without a key; (g) distribute any key for the Software provided by Juniper to any third party; (h) use the

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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.

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, Customer shall exercise all reasonable commercial efforts to maintain the Software and associated documentation in confidence, which at a minimum includes restricting access to the Software to Customeremployees and contractors having a need to use the Software for Customer’s internal business purposes.

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

8. Warranty, Limitation of Liability, Disclaimer of Warranty. The warranty applicable to the Software shall be as set forth in the warranty 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.

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 observe strict obligations of confidentiality with respect to such information and shall use such information in compliance with any applicable terms and conditions upon which Juniper makes such information available.

14. Third Party Software. Any licensor of Juniper whose software is embedded inthe Software and any supplier of Juniper whose products or technology are embedded in (or services are accessed by) the Software shall be a third party beneficiary with respect to this Agreement, and such licensor or vendor shall have the right toenforce this Agreement in its own name as if it were Juniper. In addition, certain third party software may be provided with the Software and is subject to the accompanying license(s), if any, of its respective owner(s). To the extent portions of the Software are distributed under and subject to open source licenses obligating Juniper to make the source code for such portions publicly available (such as the GNU General Public License (“GPL”) or the GNU Library General Public License (“LGPL”)), Juniper will make such source code portions (including Juniper modifications, as appropriate) available upon request for a period of up to three years from the date of distribution. Such request can be made in writing to Juniper Networks, Inc., 1194 N. Mathilda Ave., Sunnyvale, CA 94089, ATTN: General Counsel. You may obtain a copy of the GPL at http://www.gnu.org/licenses/gpl.html, and a copy of the LGPL

at http://www.gnu.org/licenses/lgpl.html .

15. Miscellaneous. This Agreement shall be governed by the laws of the State of California without reference to its conflicts of laws principles. The provisions of the U.N. Convention for the International Sale of Goods shall not apply to this Agreement. For any disputes arising under this Agreement, the Parties hereby consent to the personal and exclusive jurisdiction of, and venue in, the state and federal courts within Santa Clara County, California. This Agreement constitutes the entire and sole agreement between Juniper and the Customer with respect to the Software, and supersedes all prior and contemporaneous agreements relating to the Software, whether oral or written (including any inconsistent terms contained in a purchase order), except that the terms of a separate written agreement executed by an authorized Juniper representative and Customer shall govern to the extent such terms are inconsistent or conflict with terms contained herein. No modification to this Agreement nor any waiver of any rights hereunder shall be effective unless expressly assented to in writing by the party to be charged. If any portion of this Agreement is held invalid, the Parties agree that such invalidity shall not affect the validity of the remainder of this Agreement. This Agreement and associated documentation has been written in the English language, and the Parties agree that the English version will govern. (For Canada: Les parties aux présentés confirment leur volonté que cette convention de même que tous les documents y compris tout avis qui s'y rattaché, soient redigés en langue anglaise. (Translation: The parties confirm that this Agreement and all related documentation is and will be in the English language)).

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Table of Contents

About the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

Junos OS Documentation and Release Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii

Documentation Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii

Documentation Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

Requesting Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiv

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

Opening a Case with JTAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv

Part 1 Overview of the M7i Multiservice Edge Router

Chapter 1 Overview of the M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

M7i Router Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Chapter 2 M7i Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

M7i Component Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

M7i Chassis Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

M7i Midplane Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

M7i Compact Forwarding Engine Board (CFEB) and Enhanced Compact

Forwarding Engine Board (CFEB-E) Description . . . . . . . . . . . . . . . . . . . . . . . . 8

CFEB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

CFEB-E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

M7i Adaptive Services Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

M7i MultiServices Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

M7i CFEB and CFEB-E LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

M7i Fixed Interface Card (FIC) Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

M7i FIC LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

M7i PICs Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

M7i PIC LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

M7i Flexible PIC Concentrators (FPCs) Description . . . . . . . . . . . . . . . . . . . . . . . . 18

M7i Routing Engine Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Boot Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

M7i Routing Engine Management Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

M7i Routing Engine LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

M7i Power Supply Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

M7i Power System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

M7i AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

M7i DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

M7i Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

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M7i Multiservice Edge Router Hardware Guide

M7i Cooling System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

M7i Airflow Through the Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

M7i Cable Management System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Chapter 3 System Architecture Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

System Architecture Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

M7i and M10i Packet Forwarding Engine Architecture . . . . . . . . . . . . . . . . . . . . . . 28

Packet Forwarding Engine Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Data Flow Through the Packet Forwarding Engine . . . . . . . . . . . . . . . . . . . . . 28

Routing Engine Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Routing Engine Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Part 2 Setting Up the M7i Router

Chapter 4 Preparing the Site for M7i Router Installation . . . . . . . . . . . . . . . . . . . . . . . . . 35

M7i Router Site Preparation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

M7i Router Rack Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

M7i Router Clearance Requirements for Airflow and Hardware Maintenance . . . 38

Chapter 5 Overview of M7i Router Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Overview of M7i Router Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Chapter 6 Unpacking the M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Tools and Parts Required to Unpack the M7i Router . . . . . . . . . . . . . . . . . . . . . . . . 41

Unpacking the M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Verifying the M7i Router Parts Received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Chapter 7 Installing the M7i Router Mounting Hardware . . . . . . . . . . . . . . . . . . . . . . . . . 45

Installing the M7i Cable Management System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Moving the Mounting Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Chapter 8 Installing the M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Tools and Parts Required to Install the M7i Router Into a Rack . . . . . . . . . . . . . . . 47

Installing the M7i Router Into the Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Chapter 9 Grounding the M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Connecting the Grounding Cable to the M7i Router . . . . . . . . . . . . . . . . . . . . . . . . 51

Chapter 10 Connecting the M7i Router to External Devices . . . . . . . . . . . . . . . . . . . . . . . . 53

Tools and Parts Required for M7i Router Connections . . . . . . . . . . . . . . . . . . . . . . 53

Connecting the M7i Router to Management and Alarm Devices . . . . . . . . . . . . . . 53

Connecting the M7i Router to a Network for Out-of-Band Management . . . 54

Connecting the M7i Router to a Management Console or Auxiliary

Inserting an SFP into the 1-port Gigabit Ethernet FIC . . . . . . . . . . . . . . . . . . . . . . . 55

Connecting FIC and PIC Cables to the M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . 55

Chapter 11 Providing Power to the M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Connecting Power to an AC-Powered M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Connecting Power to a DC-Powered Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Powering on the M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Powering Off the M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

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Table of Contents

Chapter 12 Configuring Junos OS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Initially Configuring the M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Part 3 Hardware Maintenance, Troubleshooting, and Replacement

Procedures

Chapter 13 Maintaining M7i Router Hardware Components . . . . . . . . . . . . . . . . . . . . . . . 69

Routine Maintenance Procedures for the M7i Router . . . . . . . . . . . . . . . . . . . . . . . 69

Maintaining the M7i CFEB and CFEB-E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Maintaining the M7i FIC and FIC Cables and PICs and PIC Cables . . . . . . . . . . . . . 70

Maintaining the M7i Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Maintaining the M7i Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Maintaining the M7i Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Chapter 14 Troubleshooting M7i Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . 75

Overview of Troubleshooting Resources for the M7i Router . . . . . . . . . . . . . . . . . . 75

LEDs on the FIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

LEDs on Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Hardware and Interface Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Troubleshooting the M7i CFEB and CFEB-E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Troubleshooting the M7i FIC or PICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Troubleshooting the M7i Power System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Troubleshooting the M7i Power System When the LEDs on All M7i Power

Supplies Are Blinking or Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Troubleshooting the M7i Power System When the LED on One M7i Power

Supply Is Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Troubleshooting the M7i Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Chapter 15 Replacing M7i Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

M7I Field-Replaceable Units (FRUs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Tools and Parts Required to Replace M Series Hardware Components . . . . . . . . 86

Replacing, Upgrading, and Downgrading the M7i CFEB and CFEB-E . . . . . . . . . . 86

Removing the M7i CFEB and CFEB-E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Installing the M7i CFEB and CFEB-E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Upgrading and Downgrading the CFEB and CFEB-E . . . . . . . . . . . . . . . . . . . 88

Replacing an M7i PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Removing an M7i PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Installing an M7i PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Replacing an M7i FIC or PIC Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Removing an M7i FIC or PIC Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Installing an M7i FIC or PIC Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

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M7i Multiservice Edge Router Hardware Guide

Replacing an SFP on an M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Removing an SFP from an M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Installing an SFP into an M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Replacing the M7i Routing Engine and Routing Engine Components . . . . . . . . . . 97

Replacing the M7i Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Replacing the Routing Engine Interface Port Cables . . . . . . . . . . . . . . . . . . . . 99

Removing and Inserting the CompactFlash Card . . . . . . . . . . . . . . . . . . . . . 100

Removing and Inserting SDRAM Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Removing and Inserting the PC Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Replacing M7i Power System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Replacing an M7i AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Replacing an M7i AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Replacing a DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Replacing an M7i DC Power Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Replacing the M7i Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Removing the M7i Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Installing the M7i Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Removing an M7i Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Installing the Routing Engine in a M7i Router . . . . . . . . . . . . . . . . . . . . . . 98

Replacing the Management Ethernet Cable . . . . . . . . . . . . . . . . . . . . . . 99

Replacing the Console or Auxiliary Cable . . . . . . . . . . . . . . . . . . . . . . . . 100

Removing the CompactFlash Card from a Routing Engine . . . . . . . . . . . 101

Inserting the CompactFlash Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Configuring the CompactFlash Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Removing a SDRAM Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Inserting a SDRAM Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Removing the PC Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Replacing the PC Card Adapter Flash Disk . . . . . . . . . . . . . . . . . . . . . . . 105

Inserting the PC Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Removing an M7i AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Installing an M7i AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Removing an M7i AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Installing an M7I AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Installing an M7i AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Removing a DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Installing a DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Removing an M7I DC Power Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Installing an M7i DC Power Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Part 4 Appendixes

Appendix A Safety and Regulatory Compliance Information for the M7i Router . . . . . . 123

Definition of Safety Warning Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Safety Guidelines and Warnings for the M7i Router . . . . . . . . . . . . . . . . . . . . . . . 125

General Safety Guidelines for M Series, MX Series, and T Series Routers . . . 125

General Safety Warnings for M Series, MX Series, and T Series Routers . . . . 126

Qualified Personnel Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Restricted Access Area Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Preventing Electrostatic Discharge Damage to an M7i Router . . . . . . . . . . . . 128

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Table of Contents

Fire Safety Requirements for M Series, MX Series, and T Series Routers . . . 129

General Fire Safety Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Fire Suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Fire Suppression Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

M7i Router Installation Safety Guidelines and Warnings . . . . . . . . . . . . . . . . 130

M7i Chassis Lifting Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

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

Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Laser and LED Safety Guidelines and Warnings for the M7i Router . . . . . . . 136

General Laser Safety Guidelines for the M7i Router . . . . . . . . . . . . . . . . 136

M7i Laser and LED Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

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

T Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Battery Handling Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Jewelry Removal Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Lightning Activity Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Operating Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

Product Disposal Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

Electrical Safety Guidelines and Warnings for the M7i Router . . . . . . . . . . . . 144

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

Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

General Electrical Safety Guidelines and Electrical Codes for M Series,

MX Series, and T Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

In Case of an Electrical Accident . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

M7i AC Power Electrical Safety Guidelines and Warnings . . . . . . . . . . . 149

M7i DC Power Electrical Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . 149

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

Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

Agency Approvals and Compliance Statements for the M7i Router . . . . . . . . . . . 153

Agency Approvals for M7i Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

Compliance Statements for NEBS for M Series, MX Series, and T Series

Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Compliance Statements for EMC Requirements for the M7i Router . . . . . . . 155

Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

European Community . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

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

and T Series Routers (United States) . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

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

and T Series Routers (Canada) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Compliance Statements for Environmental Requirements for M Series, MX

Series, and T Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Compliance Statements for Acoustic Noise for the M7i Router . . . . . . . . . . . 157

Appendix B M7i Router Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

M7i Router Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Appendix C M7i Router Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

M7i Router Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

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M7i Multiservice Edge Router Hardware Guide

Appendix D Power Guidelines, Requirements, and Specifications for the M7i

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

M7i Router Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

M7i Router AC Power Specifications and Requirements . . . . . . . . . . . . . . . . . . . . 164

M7i Router AC Power, Connection, and Power Cord Specifications . . . . . . . 164

M7i Router AC Power Supply Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 166

M7i Router DC Power Specifications and Requirements . . . . . . . . . . . . . . . . . . . . 167

M7i Chassis Grounding, Connection, and Cable Specifications . . . . . . . . . . . 167

M7i DC Power Cable and Cable Lug Specifications . . . . . . . . . . . . . . . . . . . . 168

M7i Router DC Power Supply Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 170

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

Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Appendix E Cable and Wire Guidelines and Specifications for the M7i Router . . . . . . . 173

FIC Specifications for the M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

Fiber-Optic Specifications and Guidelines for the M7i Router . . . . . . . . . . . . . . . 174

Fiber-Optic and Network Cable Specifications for the M7i Router . . . . . . . . 174

Signal Loss in Multimode and Single-Mode Fiber-Optic Cable for the M7i

Attenuation and Dispersion in Fiber-Optic Cable on M Series, MX Series,

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 M7i Router . . . . 179

Appendix F M7i Cable Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

RJ-45 Connector Pinouts for the M7i Routing Engine MGMT Port . . . . . . . . . . . . . 181

DB-9 Connector Pinoutsfor the M7i Routing Engine AUX/MODEM andCONSOLE

Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

RJ-48 Cable Pinouts for E1 and T1 PICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

Appendix G Contacting Customer Support and Returning M7i Hardware . . . . . . . . . . . 187

Locating M7i Component Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

Displaying M7i Router Components and Serial Numbers . . . . . . . . . . . . . . . 187

CFEB and CFEB-E Serial Number ID Label . . . . . . . . . . . . . . . . . . . . . . . . . . 188

PIC Serial Number ID Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

Power Supply Serial Number ID Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

Routing Engine Serial Number ID Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

Contacting Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

Returning a Hardware Component to Juniper Networks, Inc. . . . . . . . . . . . . . . . . 191

Tools and Parts Required to Remove Components from an M7i Router . . . . . . . 192

Packing the M7i Router for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Guidelines for Packing M7i Components for Shipment . . . . . . . . . . . . . . . . . . . . 194

DC Power Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

DC Power Lugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

and T Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

and T Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

T Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Page 13

Part 5 Index

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

Table of Contents

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M7i Multiservice Edge Router Hardware Guide

Page 15

List of Figures

Part 1 Overview of the M7i Multiservice Edge Router

Chapter 2 M7i Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 1: Front of Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 2: Rear of Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 3: Midplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 4: CFEB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 5: CFEB with Adaptive Services Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 6: CFEB-E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 7: CFEB-E with Adaptive Services Module . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 8: CFEB-E with MultiServices Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 9: FIC with Fast Ethernet Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 10: FIC with Gigabit Ethernet Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 11: FPC Slot Numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 12: Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 13: Routing Engine Interface Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 14: AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 15: DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 16: Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 17: Airflow Through the Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Chapter 3 System Architecture Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Figure 18: System Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Figure 19: Packet Forwarding Engine Components and Data Flow . . . . . . . . . . . . 29

Figure 20: Routing Engine Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 21: Control Packet Handling for Routing and Forwarding Table

Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Part 2 Setting Up the M7i Router

Chapter 4 Preparing the Site for M7i Router Installation . . . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 22: Typical Open-Frame Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Figure 23: Chassis Dimensions and Clearance Requirements . . . . . . . . . . . . . . . . 38

Chapter 6 Unpacking the M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Figure 24: Unpacking the Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Chapter 7 Installing the M7i Router Mounting Hardware . . . . . . . . . . . . . . . . . . . . . . . . . 45

Figure 25: Installing the Cable Management System . . . . . . . . . . . . . . . . . . . . . . . 45

Chapter 8 Installing the M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Figure 26: Installing the Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

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M7i Multiservice Edge Router Hardware Guide

Chapter 10 Connecting the M7i Router to External Devices . . . . . . . . . . . . . . . . . . . . . . . . 53

Figure 27: Routing Engine Ethernet Cable Connector . . . . . . . . . . . . . . . . . . . . . . 54

Figure 28: Routing Engine Interface Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Figure 29: Console and Auxiliary Serial Port Connector . . . . . . . . . . . . . . . . . . . . . 54

Figure 30: Attaching the Cable to a PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Chapter 11 Providing Power to the M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Figure 31: Connecting DC PowerCables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Part 3 Hardware Maintenance, Troubleshooting, and Replacement

Procedures

Chapter 15 Replacing M7i Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Figure 32: Removing the CFEB or CFEB-E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Figure 33: Installing a CFEB or CFEB-E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Figure 34: Removing a PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Figure 35: Installing a PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Figure 36: Connecting Fiber-Optic Cable to a PIC . . . . . . . . . . . . . . . . . . . . . . . . . 94

Figure 37: Small Form-Factor Pluggable (SFP) . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Figure 38: Small Form-Factor Pluggable (SFP) . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Figure 39: Removing the Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Figure 40: Installing the Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Figure 41: Routing Engine Ethernet Cable Connector . . . . . . . . . . . . . . . . . . . . . . . 99

Figure 42: Routing Engine Interface Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Figure 43: Console and Auxiliary Serial Port Connector . . . . . . . . . . . . . . . . . . . . 100

Figure 44: Removing the CompactFlash Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Figure 45: Inserting the CompactFlash Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Figure 46: Installing the SDRAM Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Figure 47: Removing the PC Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Figure 48: Inserting the PC Card Flash Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Figure 49: Inserting the PC Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Figure 50: Removing an AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Figure 51: Installing an AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Figure 52: Removing a DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Figure 53: Installing a DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Figure 54: Connecting DC Power Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Figure 55: Connecting DC Power Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Figure 56: Removing the Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Figure 57: Installing the Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Part 4 Appendixes

Appendix A Safety and Regulatory Compliance Information for the M7i Router . . . . . . 123

Figure 58: Placing a Component into an Electrostatic Bag . . . . . . . . . . . . . . . . . . 129

Figure 59: M7i Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Appendix D Power Guidelines, Requirements, and Specifications for the M7i

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

Figure 60: AC Plug Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Figure 61: Grounding Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

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List of Figures

Figure 62: DC Power Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Appendix G Contacting Customer Support and Returning M7i Hardware . . . . . . . . . . . 187

Figure 63: Serial Number ID Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188

Figure 64: CFEB or CBEF-E Serial Number ID Label . . . . . . . . . . . . . . . . . . . . . . . 189

Figure 65: PIC Serial Number ID Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

Figure 66: Power Supply Serial Number ID Label . . . . . . . . . . . . . . . . . . . . . . . . . 190

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M7i Multiservice Edge Router Hardware Guide

Page 19

List of Tables

About the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

Table 1: Notice Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii

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

Part 1 Overview of the M7i Multiservice Edge Router

Chapter 2 M7i Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Table 3: States for CFEB or CFEB-E LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Table 4: Alarm LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Table 5: FIC Interface LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Table 6: States for Routing Engine LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Table 7: States for the M7i Power Supply LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Part 2 Setting Up the M7i Router

Chapter 4 Preparing the Site for M7i Router Installation . . . . . . . . . . . . . . . . . . . . . . . . . 35

Table 8: Site Preparation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Table 9: Rack Requirements and Specifications for an M7i Router . . . . . . . . . . . . 36

Chapter 6 Unpacking the M7i Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Table 10: Generic Inventory of Router Components Installed in the M7i

Table 11: Accessory Box Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Part 3 Hardware Maintenance, Troubleshooting, and Replacement

Procedures

Chapter 14 Troubleshooting M7i Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . 75

Table 12: Chassis Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Table 13: SONET/SDH Interface Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Chapter 15 Replacing M7i Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Table 14: Field-Replaceable Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Table 15: Tools and Parts Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Part 4 Appendixes

Appendix B M7i Router Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Table 16: Chassis Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Appendix C M7i Router Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

Table 17: Router Environmental Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

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M7i Multiservice Edge Router Hardware Guide

Appendix D Power Guidelines, Requirements, and Specifications for the M7i

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

Table 18: M7i Component Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . 163

Table 19: AC Power Cord Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Table 20: Electrical Specifications for AC Power Supply . . . . . . . . . . . . . . . . . . . 166

Table 21: Grounding Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Table 22: DC Power Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

Table 23: Electrical Specifications for DC Power Supply . . . . . . . . . . . . . . . . . . . . 170

Appendix E Cable and Wire Guidelines and Specifications for the M7i Router . . . . . . . 173

Table 24: FIC Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

Table 25: Estimated Values for Factors Causing Link Loss . . . . . . . . . . . . . . . . . . 177

Table 26: Cable Specifications for Routing Engine Management Ports . . . . . . . . 179

Appendix F M7i Cable Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

Table 27: RJ-45 Connector Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

Table 28: DB-9 Connector Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

Table 29: RJ-48 Connector to RJ-48 Connector (Straight) Pinout for the

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

Table 30: RJ-48 Connector to RJ-48 Connector (Crossover) Pinout for the

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

Table 31: RJ-48 Connector to DB-15 Connector (Straight) Pinout for the

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

Table 32: RJ-48 Connector to DB-15 Connector (Crossover) Pinout for the

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185

Page 21

About the Documentation

•

Junos OS Documentation and Release Notes on page xxi

•

Objectives on page xxi

•

Audience on page xxii

•

Documentation Conventions on page xxii

•

Documentation Feedback on page xxiii

•

Requesting Technical Support on page xxiv

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 M7i 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/.

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M7i 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 xxii defines the notice icons used in this guide.

Table 1: Notice Icons

DescriptionMeaningIcon

Indicates important features or instructions.Informational note

Table 2 on page xxii 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

Page 23

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.

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M7i 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/

Page 25

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

Page 26

M7i Multiservice Edge Router Hardware Guide

Page 27

PART 1

Overview of the M7i Multiservice Edge Router

•

Overview of the M7i Router on page 3

•

M7i Hardware Components on page 5

•

System Architecture Overview on page 27

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M7i Multiservice Edge Router Hardware Guide

Page 29

CHAPTER 1

Overview of the M7i Router

•

M7i Router Description on page 3

M7i Router Description

The M7i Multiservice Edge Router is a complete routing system that provides ATM, channelized, Ethernet, IP services, and SONET/SDH interfaces for large networks and network applications, such as those supported by Internet service providers (ISPs).

The router accommodates up to four Physical Interface Cards (PICs). In addition to the PICs, the Fixed Interface Card (FIC) provides two Fast Ethernet ports or one Gigabit Ethernet port, depending on your configuration. The built-in tunnel interface on the Compact Forwarding Engine Board (CFEB) and Enhanced Compact Forwarding Engine Board (CFEB-E) provides tunneling services. The optional Adaptive Services Module (ASM) on the CFEB and CFEB-E, and the optional MultiServices Module (MSM) on the CFEB-E allow one or more services to be configured on this interface.

The router architecture cleanly separates control operations from packet forwarding operations,which helps to eliminateprocessing and trafficbottlenecks.Control operations in the router are performed by the Routing Engine, which runs Junos OS to handle routing protocols,traffic engineering, policy, policing, monitoring, and configuration management.

Application-specific integrated circuits (ASICs), a definitive part of the router design, enable the router to forward data at the high speeds demanded by current network media. Forwarding operations in the router are performed by the Packet Forwarding Engine, which consists of hardware, including ASICs, designed by Juniper Networks. The Packet Forwarding Engine can forward up to 16 million packets per second (Mpps) for all packet sizes. The aggregate throughput is 4 gigabits per second (Gbps), full duplex, for the FPC with 4 PIC slots. The fixed interface card (FIC) has a maximum throughput of 1 Gbps full duplex. Inserting a combination of PICs with an aggregate higher than the maximum throughput of the FPC is supported, but constitutes oversubscription of the FPC.

Documentation

• M7i Component Redundancy on page 5

• M7i Chassis Description on page 6

• M7i Router Physical Specifications on page 159

• Overview of M7i Router Installation on page 39

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M7i Multiservice Edge Router Hardware Guide

Page 31

CHAPTER 2

M7i Hardware Components

•

M7i Component Redundancy on page 5

•

M7i Chassis Description on page 6

•

M7i Midplane Description on page 7

•

M7i Compact Forwarding Engine Board (CFEB) and Enhanced Compact Forwarding Engine Board (CFEB-E) Description on page 8

•

M7i CFEB and CFEB-E LEDs on page 14

•

M7i Fixed Interface Card (FIC) Description on page 15

•

M7i FIC LEDs on page 16

•

M7i PICs Description on page 16

•

M7i PIC LEDs on page 17

•

M7i Flexible PIC Concentrators (FPCs) Description on page 18

•

M7i Routing Engine Description on page 18

•

M7i Routing Engine LEDs on page 21

•

M7i Power Supply Overview on page 21

•

M7i Cooling System Overview on page 24

•

M7i Cable Management System on page 25

M7i Component Redundancy

The router can be configured with two load-sharing, fully redundant power supplies to distribute power to the other components. If one power supply fails, the second power supply can provide full power to the router's components indefinitely.

Documentation

M7i Router Description on page 3•

• M7i Chassis Description on page 6

• Overview of M7i Router Installation on page 39

• M7i Router Physical Specifications on page 159

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M7i Multiservice Edge Router Hardware Guide

M7i Chassis Description

The router chassis is a rigid sheet metal structure that houses the other hardware components. The chassis is 17.5 in. (44.5 cm) wide and 18 in. (45.7 cm) deep. The chassis height of 3.5 in. (8.9 cm) enables stacked installation of 21 M7i routers in a single floor-to-ceiling rack. For more information, see “M7i Router Rack Requirements” on page 36.

The two mounting brackets (one on each side) extend the chassis width to 19 in. (48.2 cm).

Figure 1: Front of Chassis

Figure 2: Rear of Chassis

The chassis includes the following electrical safety components:

•

One electrostatic discharge (ESD) points (banana plug receptacles), at the front of the chassis, as shown in Figure 1 on page 6.

•

Two internally threaded inserts providing grounding points for the router.

WARNING: Beforeremoving or installing components of a functioning router,

attach an ESD strap to an ESD point and place the other end of the strap

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Chapter 2: M7i Hardware Components

around your bare wrist. Failure to use an ESD strap could result in damage to the router.

The router must be connected to earth ground during normal operation.

For further safety information, see “General Safety Guidelines for M Series, MX Series, and T Series Routers” on page 125 and “General Safety Warnings for M Series, MX Series, and T Series Routers” on page 126.

For chassis serial number information, see “Displaying M7iRouter Components and Serial Numbers” on page 187.

Documentation

M7i Router Physical Specifications on page 159•

• Overview of M7i Router Installation on page 39

• M7i Router Description on page 3

M7i Midplane Description

The midplane is a panel located in the center of the chassis, running from side to side and formingthe rear of the PIC card cage(see Figure 3 on page7). All router components plug directly into the midplane. The midplane contains an EEPROM that stores the serial number and revision level of the midplane.

The midplane performs the following functions:

•

Transfer of packets—An incoming data packet crosses the midplane to a CFEB or CFEB-E. The CFEB or CFEB-E performs switchingand forwarding functionsand transfers outgoing packets back across the midplane to the FIC or PICs for transmission to the network.

•

Power distribution—The midplane distributes power to all router components from the power supplies attached to it.

•

Signal connectivity—The midplane transports the signals exchanged by system components for monitoring and control purposes.

Figure 3: Midplane

For midplane serial number information, see “Displaying M7i Router Components and Serial Numbers” on page 187.

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M7i Multiservice Edge Router Hardware Guide

Documentation

M7i Router Description on page 3•

• M7i Chassis Description on page 6

M7i Compact Forwarding Engine Board (CFEB) and Enhanced Compact Forwarding Engine Board (CFEB-E) Description

The M7i Multiservice Edge Router houses either a Compact Forwarding Engine Board (CFEB) or an Enhanced Compact Forwarding Engine Board (CFEB-E), which is located on the rear of the router above the power supplies, as shown in Figure 2 on page 6. It provides route lookup, filtering, and switching on incoming data packets, then directs outbound packets to the appropriate interface for transmission to the network. It can process 16 million packets per second (Mpps). The CFEB or CFEB-E communicates with the Routing Engine using a dedicated 100-Mbps link that transfers routing table data from the Routing Engine to the forwarding table. The link is also used to transfer routing link-state updates and other packets destined for the router from the CFEB or CFEB-E to the Routing Engine.

The CFEB or CFEB-E provides the following functions:

•

Route lookups—Performs route lookups using the forwarding table stored in the synchronous SRAM (SSRAM) on CFEBs or stored in the RLDRAM on CFEB-Es.

•

Management of shared memory —Uniformly allocates incoming data packets throughout the router's shared memory.

•

Transfer of outgoing data packets—Passes data packets to the destination FIC or PIC when the data is ready to be transmitted.

•

Transfer of exception and control packets—Passes exception packets to the microprocessor on the CFEB or CFEB-E, which processes almost all of them. The remainder are sent to the Routing Engine for further processing. Any errors originating in the Packet Forwarding Engine and detected by the CFEB or CFEB-E are sent to the Routing Engine using system log messages.

•

Built-in tunnel interface—Encapsulates arbitrary packets inside a transport protocol, providing a private, secure path through an otherwise public network.

The built-in tunnel interface on the CFEB or CFEB-E is configured the same way as a PIC. For information about configuring the built-in tunnel interface, see the Junos OS Services Interfaces Configuration Guide.

•

Optional Adaptive Services Module (ASM)—Provides one or more services on one PIC. See “M7i Adaptive Services Module” on page 12 for more information.

The CFEB and CFEB-E are hot-pluggable when you replace a CFEB with a CFEB or a CFEB-E with a CFEB-E. Upgrading or downgrading a CFEB device requires a system reboot, as described in “Upgrading and Downgrading the CFEB and CFEB-E” on page88. You can remove and replace the CFEB or CFEB-E without powering down the router, but the routing functions of the system are interrupted when it is removed.

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CFEB

The CFEB has the following major components:

•

Processing components:

•

266-MHz CPU and supporting circuitry

•

Integrated ASIC

•

33-MHz PCI bus

•

Storage components:

•

128-MB SDRAM for packet memory

•

128-MB SDRAM for the microkernel

•

8-MB SSRAM for route lookup

•

4-MB SSRAM for control memory

Chapter 2: M7i Hardware Components

•

Services interfaces:

•

Built-in tunnel interface

•

Optional Adaptive Services Module

•

System interfaces:

•

100-Mbps link for internal interface to the Routing Engine

•

19.44-MHz reference clock—Generates clock signal for SONET/SDH PICs.

•

I2C controller to read the I2C/EEPROMs in the PICs and temperature sensors

•

I2C/EEPROM containing the serial number and revision level

•

Two 512-KB boot flash EPROMs (programmable on the board)

•

One PowerPC 8245 integrated processor

•

Three LEDs—A green LED labeled OK, a red LED labeled FAIL, and a blue LED labeled

MASTER indicate CFEB status.

•

Online/Offline button—Prepares the CFEB for removal from the router when pressed.

•

Ejector levers—Control the locking system that secures the CFEB in the chassis.

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M7i Multiservice Edge Router Hardware Guide

Figure 4: CFEB

Figure 5: CFEB with Adaptive Services Module

CFEB-E

The CFEB-E provides the following additional and enhanced functions:

•

Optional MultiServices Module(MSM)—Provides oneor more services on one PIC. See “M7i MultiServices Module” on page 13 for more information.

•

Increased number of logical interfaces.

•

Increased route, nexthop, and interface lookup memory.

•

Increased FPC throughput.

•

Enhanced class of service features, including:

•

More queues and priority levels

•

Increased drop precedence per queue

•

Excess bandwidth allocation in proportion to weights

•

Hierarchical policing

•

Increased number of WRED profiles

Page 37

•

Independent EXP and DSCP rewrite

•

Independent Layer 2 and Layer 3 classification on same port

The CFEB-E has the following major components:

•

Processing components:

•

1-GHz CPU and supporting circuitry

•

Integrated ASIC

•

33-MHz PCI bus

•

Storage components:

•

Three 256-MB SDRAMs for packet memory

•

1-GB SDRAM for the microkernel

•

Two 64-MB RLDRAMs for route lookup

Chapter 2: M7i Hardware Components

•

Two 64-MB RLDRAMs for control memory

•

Services interfaces:

•

Built-in tunnel interface

•

Optional Adaptive Services Module

•

Optional MultiServices Module

•

System interfaces:

•

100-Mbps link for internal interface to the Routing Engine

•

19.44-MHz reference clock—Generates clock signal for SONET/SDH PICs

•

I2C controller to read the I2C/EEPROMs in the PICs and temperature sensors

•

I2C/EEPROM containing the serial number and revision level

•

Two 512-KB boot flash EPROMs (programmable on the board)

•

One MPC8545 integrated processor with 1-GB DDR2 SDRAM

•

Three LEDs—A green LED labeled OK, a red LED labeled FAIL, and a blue LED labeled

MASTER indicate CFEB-E status.

•

Offline button—Prepares the CFEB-E for removal from the router when pressed.

•

Ejector levers—Control the locking system that secures the CFEB-E in the chassis.

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g004428

g004429

g004430

M7i Multiservice Edge Router Hardware Guide

Figure 6: CFEB-E

Figure 7: CFEB-E with Adaptive Services Module

Figure 8: CFEB-E with MultiServices Module

M7i Adaptive Services Module

The Adaptive Services Module is an optional component of the CFEB and CFEB-E. The Adaptive Services Module is similar to the standaloneAdaptive Services PIC,but operates

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Chapter 2: M7i Hardware Components

at a reduced bandwidth. The Adaptive Services Module enables you to perform one or more services on the same PIC by configuring a set of services and applications.

The Adaptive Services Module provides the following services:

•

Stateful firewall—A type of firewall filter that considers state information derived from previous communications and other applications when evaluating traffic.

•

Network Address Translation (NAT)—A security procedure for concealing host addresses on a private network behind a pool of public addresses.

•

Intrusion detection services (IDS)—A set of tools for detecting, redirecting, and preventing certain kinds of network attack and intrusion.

The configuration for these three servicescomprises aseries ofrules that you can arrange in order of precedence as a rule set. Each rule follows the structure of a firewall filter, with a from statement containing input or match conditions and a then statement containing actions to be taken if the match conditions are met.

For information about configuring interfaces on the ASM, see the Junos OS Services Interfaces Configuration Guide.

M7i MultiServices Module

The MultiServices Module is an optional component of the CFEB-E. The CFEB does not support the MultiServices Module. The MultiServices Module enables you to perform one or more services on the same PIC by configuring a set of services and applications. Like the standalone MultiServices 100 PIC, the MultiServices Module supports the following services:

•

Layer 3 Services:

•

Stateful firewall—A type of firewall filter that considers state information derived from previous communications and other applications when evaluating traffic.

Network Address Translation (NAT)—A security procedure for concealing host addresses on a private network behind a pool of public addresses.

Intrusion detection services (IDS)—A set of tools for detecting, redirecting, and preventing certain kinds of network attack and intrusion.

IPsec

Layer 2 Tunneling Protocol (L2TP)

Active monitoring (cflowd)

Tunnel services

•

GRE prefragmentation

•

GRE key stamping

•

RPM

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M7i Multiservice Edge Router Hardware Guide

•

Layer 2 Services:

•

MLPPP

•

MLFR

•

cRTP

•

IPsec

•

Multiclass MLPPP

•

RPM

The configuration for these services comprises a series of rules that you can arrange in order of precedence as a rule set. Each rule follows the structure of a firewall filter, with a from statement containing input or match conditions and a then statement containing actions to be taken if the match conditions are met.

NOTE: You can enable either Layer 2 or Layer 3 services on the MultiServices

Module,but you cannot enable both Layer 2and Layer3 services concurrently.

For information about configuring interfaces on the MSM, see the Junos OS Services Interfaces Configuration Guide.

Documentation

M7i CFEB and CFEB-E LEDs on page 14•

• M7i and M10i Packet Forwarding Engine Architecture on page 28

• M7i Router Description on page 3

• M7i Router Physical Specifications on page 159

M7i CFEB and CFEB-E LEDs

Table 3: States for CFEB or CFEB-E LEDs

DescriptionStateColorLabel

CFEB/CFEB-E is running normally.On steadilyGreenOK

CFEB-E is starting upBlinking

CFEB/CFEB-E is offline.Off

CFEB/CFEB-E is not operational or is in reset mode.On steadilyRedFAIL

CFEB/CFEB-E is functioning properly.Off

On steadilyBlueMASTER

CFEB/CFEB-E is functioning as master. On an M7i router, this LED is always lit.

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Chapter 2: M7i Hardware Components

Documentation

M7i Compact Forwarding Engine Board (CFEB) and Enhanced Compact Forwarding

•

Engine Board (CFEB-E) Description on page 8

M7i Fixed Interface Card (FIC) Description

The Fixed Interface Card (FIC) is built into the router chassis.

The FIC receives incoming packets from the network and transmits outgoing packets to the network, providing support for Fast Ethernet ports or Gigabit Internet interfaces, depending on which version of the FIC is installed in the router.

The FIC also allows you to view alarm status at a glance and to perform some system control functions, such as taking PICs online and offline.

The FIC is located on the front of the chassis to the left of the Routing Engine and is not a field-replaceable unit (FRU).

Each FIC consists of the following components:

•

The FIC has either two 100Base-TX Fast Ethernet ports or one Gigabit Ethernet port, depending onwhich type of FIC is installed inthe router. Table 24 on page 173 describes the interface connectors. See Figure 9 on page 15 and Figure 10 on page 15.

For more information about Fast Ethernet and Gigabit Ethernet interfaces, see the M7i Multiservice Edge Router PIC Guide. The networking interface on the FIC is configured the sameway as aPIC. Formore information aboutconfiguring interfaces see the Junos OS Network Interfaces Configuration Guide.

Documentation

•

Buttons on the FIC labeled PICS ON/OFF to take a Physical Interface Card (PIC) offline when it needs to be removed, or bring it online when it is replaced.

•

Alarm LEDs and interface LEDs.

Figure 9: FIC with Fast Ethernet Ports

Figure 10: FIC with Gigabit Ethernet Port

M7i FIC LEDs on page 16•

• Connecting FIC and PIC Cables to the M7i Router on page 55

• M7i Chassis Description on page 6

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M7i Multiservice Edge Router Hardware Guide

• M7i Midplane Description on page 7

M7i FIC LEDs

Two large alarm LEDs are located on the right of the FIC (see Figure 9 on page 15 and Figure 10 on page 15). The circular red LED lights to indicate a critical condition that can result in a system shutdown. The triangular yellow LED lights to indicate a less severe condition that requires monitoring or maintenance. Both LEDs can be lit simultaneously.

To deactivate red and yellow alarms,you must clear the condition that caused the alarm.

Table 4 on page 16 describes the alarm LEDs in more detail.

Table 4: Alarm LEDs

DescriptionStateColorShape

Documentation

M7i PICs Description

On steadilyRed

On steadilyYellow

Critical alarm LED—Indicates a critical condition that can cause the router to stop functioning, such as component removal, failure, or overheating.

Warningalarm LED—Indicates aserious but nonfatal error condition, such as a maintenance alert or a significant increase in component temperature.

Table 5 on page 16 describes the FIC interface LEDs in more detail.

Table 5: FIC Interface LEDs

DescriptionStateColorLabel

The port is online.On steadilyGreenLINK

The port is receiving data.BlinkingGreenACTIVITY

The port might be on, but is not receiving data.Off

M7i Fixed Interface Card (FIC) Description on page 15•

• Connecting FIC and PIC Cables to the M7i Router on page 55

PICs physically connect the router to network media. PICs receive incoming packets from the network and transmit outgoing packets to the network, performing framing and line-speed signaling for their media type as required. PICs also encapsulate outgoing packets received from the Compact ForwardingEngine Board (CFEB) or Enhanced CFEB (CFEB-E) before transmitting them. The controller ASIC on each PIC performs additional control functions specific to the PIC media type.

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Chapter 2: M7i Hardware Components

The router supports various PICs, including ATM, Channelized, Gigabit Ethernet, Services, and SONET/SDH interfaces. You can install PICs of different media types on the same router as long as the router supports those PICs.

Blank PICs resemble other PICs but do not provide any physical connection or activity. When a slot is not occupied by a PIC, you must insert a blank PIC to fill the empty slot and ensure proper cooling of the system.

Four PIC slots are located in one Flexible PIC Concentrator (FPC), FPC0, which is built in to the chassis. The PIC slots are numbered from 0 (zero) through 3, right to left. The number of ports on a PIC depends on the type of PIC.

The M7i router has a maximum throughput of 3.2 Gbps full duplex for the FPC with 4 PIC slots. Inserting a combination of PICs with an aggregate higher than the maximum throughput is supported, but constitutes oversubscription of the FPC. The fixed interface card (FIC) has a maximum throughput of 1 Gbps full duplex.

PICs are hot-removable and hot-insertable.

Most PICs supported on the M7i router have the following components.

Documentation

M7i PIC LEDs

•

One or more cable connector ports—Accept a network media connector.

•

LEDs—Indicate PIC and port status. Most PICs have an LED labeled STATUS on the PIC faceplate. Some PICs have additional LEDs, often one per port. The meaning of the LED states differs for various PICs.

•

Ejector lever—Controls the locking system that secures the PIC in the card cage.

M7i PICs Supported.•

• M7i End-of-Life PICs Supported

• M7i PIC LEDs on page 17

• M7I Field-Replaceable Units (FRUs) on page 85

• M7i Flexible PIC Concentrators (FPCs) Description on page 18

• PIC Serial Number ID Label on page 189

• Replacing an M7i PIC on page 89

• Troubleshooting the M7i FIC or PICs on page 80

LEDs indicate PIC and port status. Most PICs have an LED labeled STATUS on the PIC faceplate. Some PICs have additional LEDs, often one per port. The meaning of the LED states differs for various PICs. For more information, see the M7i Multiservice Edge Router PIC Guide.

Documentation

M7i PICs Description on page 16•

• Installing an M7i PIC on page 90

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M7i Multiservice Edge Router Hardware Guide

• PIC Serial Number ID Label on page 189

• Replacing an M7i PIC on page 89

• Troubleshooting the M7i FIC or PICs on page 80

M7i Flexible PIC Concentrators (FPCs) Description

Flexible PIC Concentrators (FPCs) house the PICs that connect the router to network media (for information about PICs, see “M7i PICs Description” on page 16). On the M7i router, each FPC is built in (it cannot be removed from the chassis as on other M Series routers). The networking and services interfaces in the M7i router are grouped onto two logical FPCs by the router, (see Figure 11 on page 18). PICs are located on FPC 0. On FPC

1 the FIC is located in slot 3 and the built-in tunnel interface is located in slot 2. If the ASM

is installed on the CFEB or CFEB-E, itis located on slot 2 with the built-in tunnel interface.

Figure 11: FPC Slot Numbering

Documentation

M7i Router Description on page 3•

• M7i Router Physical Specifications on page 159

• Overview of M7i Router Installation on page 39

M7i Routing Engine Description

The Routing Engine runs Junos OS. Thesoftware processes that run on the Routing Engine maintain the routing tables, manage the routing protocols used on the router, control the router's interfaces, control some chassis components, and provide the interface for system management and user access to the router.

The Routing Engine is installed into the midplane from the front of the chassis, as shown in Figure 1 on page 6. When two Routing Engines are installed, both are powered on, but only one is active (the master); the second Routing Engine is in standby mode and performs no functions. At boot time, both Routing Engines run an arbitration algorithm and elect one as master. For a more detailed description of the Routing Engine's role in router architecture, see “Routing Engine Architecture” on page 29.

The Routing Engineis hot-pluggable. Ifyou have onlyone Routing Engine,you can remove and replace the Routing Engine without powering down the router, but the routing functions ofthe system areinterrupted whenit is removed.If the host systemis redundant, the backup RoutingEngine is hot-removable and hot-insertable.A backupRouting Engine can be removed without interrupting routing functions.

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Chapter 2: M7i Hardware Components

Figure 12: Routing Engine

The Routing Engine (shown in Figure 12 on page 19) is a two-board system with the following components:

•

CPU—Runs Junos OS to maintain the router's routing tables and routing protocols. It has a Pentium-class processor.

•

SDRAM—Provides storage for the routing and forwarding tables and for other Routing Engine processes.

•

CompactFlash card—This disk is optional. If installed, it provides primary storage. It can accommodate software images, configuration files, and microcode.

•

Hard disk—If no CompactFlash card is installed, provides primary storage for software images, configuration files, and microcode. If an CompactFlash card is installed, the hard disk provides secondary storage for log files and memory dumps, and can reboot the system if the CompactFlash card fails.

•

PC card slot—Accepts a removable PC card, which stores software images for system upgrades.

•

Four LEDs—A green LED labeled HDD, a blue LED labeled MASTER, a red LED labeled

FAIL, and a green LED labeled ONLINE indicate Routing Engine status.

•

Interfaces for out-of-band management access—Provide information about Routing Engine status to devices (console, laptop, or terminal server) that can be attached to access ports located on the Routing Engine.

•

I2C/EEPROM—Stores the serial number of the Routing Engine.

•

Reset button—Reboots the Routing Engine when pressed.

•

Offline button—Powers down the Routing Engine when pressed.

•

Thumbscrews—Secure the Routing Engine in the chassis.

Boot Sequence

The disk from which the router boots is called the primary boot device, and the other disk is the alternate boot device.

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M7i Multiservice Edge Router Hardware Guide

The router attempts to boot from three devices in this order:

•

PC Card

•

CompactFlash card

•

Hard disk

NOTE: If the router boots froman alternateboot device,a yellow alarm lights

the LED on the router’s craft interface.

M7i Routing Engine Management Ports

On the right half of the Routing Engine are ports for connecting the Routing Engine to one or more external devices on which system administrators can issue Junos OS command-line interface (CLI) commands to manage the router.

The ports are labeled and function as follows:

Documentation

•

CONSOLE—Connects the Routing Engine to a system console through an RS-232

(EIA-232) serial cable.

•

AUX/MODEM— Connects the Routing Engine to a laptop, modem, or other auxiliary

device through an RS-232 (EIA-232) serial cable.

•

MGMT—Connectsthe RoutingEngine through an Ethernet connectionto a management

LAN (or any other device that plugs into an Ethernet connection) for out-of-band management. The port uses an autosensing RJ-45 connector to support both 10- and 100-Mbps connections. Two small LEDs on the left edge of the port indicate the connection in use: the yellow LED lights for a 10-Mbps connection and the green LED lights for a 100-Mbps connection.

For information about the pinouts for the connectors, see “RJ-45 Connector Pinouts for the M7i Routing Engine MGMT Port” on page 181.

Figure 13 on page 20 shows the ports that connect to the Routing Engine.

Figure 13: Routing Engine Interface Ports

M7i Routing Engine LEDs on page 21•

• M7i Router Description on page 3

• M7i Router Physical Specifications on page 159

• M7i Router Power Requirements on page 163

Page 47

M7i Routing Engine LEDs

Four LEDs—A green LED labeled HDD, a blue LED labeled MASTER, a red LED labeled

FAIL, and a green LED labeled ONLINE indicate Routing Engine status. Table 6 on page 21

describes the LED states.

Table 6: States for Routing Engine LEDs

Chapter 2: M7i Hardware Components

DescriptionStateColorLabel

There is read/write activity on the PC card.BlinkingGreenHDD

Documentation

M7i Routing Engine Description on page 18•

• M7i Router Description on page 3

• M7i Router Physical Specifications on page 159

• M7i Router Power Requirements on page 163

M7i Power Supply Overview

•

M7i Power System Description on page 21

•

M7i AC Power Supply on page 22

•

M7i DC Power Supply on page 23

•

M7i Power Supply LEDs on page 24

M7i Power System Description

On steadilyBlueMASTER

Routing Engine is functioning as master. On an M7i router, this LED is always lit.

Routing Engine is not operational.On steadilyRedFAIL

Routing Engine is running normally.On steadilyGreenONLINE

The router uses either AC or DC power. You can install one or two load-sharing power supplies at the bottom rear of the chassis, as shown in Figure 2 on page 6. The power supplies connect to the midplane, which distributes power to router components according to their individual voltage requirements.

For full redundancy, two power supplies are required. When the power supplies are installed and operational, they automatically share the electrical load. If a power supply stops functioning for any reason, the second power supply instantly begins providing all the power the router needs for normal functioning. It can provide full power indefinitely.

An enable control signal on the output connector of each power supply ensures that the supply is fully seated into the router midplane before the supply can be turned on. The enable pin prevents a user-accessible energy hazard, so there is no interlocking

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M7i Multiservice Edge Router Hardware Guide

mechanism. The enable pin disables the voltage at the output connector if the power supply is not turned off before removal.

Power supplies are hot-removable and hot-insertable, as described in “M7I Field-Replaceable Units (FRUs)” on page 85. To avoid electrical injury, carefully follow the instructions in “Replacing an M7i AC Power Supply” on page 106 and “Replacing a DC Power Supply” on page 111.

NOTE: After powering off a power supply, wait at least 60 seconds before

turning itback on. Afterpowering on a power supply,wait at least 60 seconds before turning it off.

If the router is completely powered off when you power on the power supply, the Routing Engine bootsas thepower supplycompletesits startupsequence. If the Routing Engine finishes booting and you need to power off the router again, first issue the CLI request system halt command. For more information, see .

Documentation

M7i AC Power Supply

After a power supply is powered on, it can take up to 60 seconds for status indicators—suchasthe output statusLED on thepower supply, thecommand display output, and messages on the LED display on the craft interface—to indicatethat the powersupply is functioning normally. Ignore errorindicators that appear during the first 60 seconds.

M7i AC Power Supply on page 22•

• M7i DC Power Supply on page 23

• Removing an M7i AC Power Supply on page 107

• Troubleshooting the M7i Power System When the LED on One M7i Power Supply Is Off

on page 81

An AC-powered router has one or two load-sharing AC power supplies, located at the bottom rear of the chassis, as shown in Figure 2 on page 6. For information about power supply redundancy and replaceability, see “M7i Power System Description” on page 21.

Figure 14 on page 23 shows the power supply.

Page 49

Figure 14: AC Power Supply

Chapter 2: M7i Hardware Components

Documentation

M7i DC Power Supply

Table 20 on page 166•

• M7i Power Supply LEDs on page 24

• Installing an M7i AC Power Cord on page 110

• M7i AC Power Electrical Safety Guidelines and Warnings on page 149

• Removing an M7i AC Power Cord on page 110

• Replacing an M7i AC Power Supply on page 106

A DC-powered router has one or two load-sharing DC power supplies, located at the bottom rear of the chassis, as shown in Figure 2 on page 6. For information about power supply redundancy and replaceability, see “M7i Power System Description” on page 21.

Figure 15 on page 23 shows the power supply.

Figure 15: DC Power Supply

Documentation

Table 23 on page 170•

• M7i Power Supply LEDs on page 24

NOTE: The DC power supplies are marked –48 VDC. This is the nominal voltage associatedwith the battery circuit.Any higher voltages areassociated only with float voltages for the charging function.

Page 50

M7i Multiservice Edge Router Hardware Guide

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

page 150

• M7i DC Power Electrical Safety Guidelines on page 149

• Replacing a DC Power Supply on page 111

M7i Power Supply LEDs

Table 7 on page 24 describes the LED on both AC and DC power supplies.

Table 7: States for the M7i Power Supply LED

DescriptionStateColorLabel

On steadilyGreenOUTPUT OK

Blinking

Documentation

Installing an M7i AC Power Supply on page 108•

• M7i Power System Description on page 21

• Replacing an M7i AC Power Supply on page 106

• Troubleshooting the M7i Power System When the LED on One M7i Power Supply Is Off

on page 81

M7i Cooling System Overview

The router cooling system consists of a fan tray, located along the left side of the chassis, that provides side-to-side cooling (see Figure 17 on page 25). It connects directly to the router midplane. The fan tray is a single unit containing four individually fault-tolerant fans. If a single fan fails, the remaining fans continue to function indefinitely.

The fan tray is hot-removable and hot-insertable.

Figure 16: Fan Tray

Power supply is functioning normally, input is occurring, outputs are within range, and the temperature is within range.

Power supply is not functioning, is starting up, or is not properly inserted, or airflow is not sufficient.

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M7i Airflow Through the Chassis

Figure 17 on page 25 shows airflow through the chassis and the location of the fan tray.

Figure 17: Airflow Through the Chassis

Chapter 2: M7i Hardware Components

Documentation

Maintaining the M7i Cooling System on page 74•

• M7i Router Clearance Requirements for Airflow andHardware Maintenance onpage 38

• M7i Router Description on page 3

M7i Cable Management System

The cable management system consists of racks that attach vertically to each side of the chassis at the front. Pass PIC cables through the slots in the racks to keep the cables organized and securely in place, and to avoid bending optical cables beyond the proper bend radius. The cable management system evenly distributes the weight of a cable, so that it is not subjected to undue stress at the connector.

Documentation

• Installing the M7i Cable Management System on page 45

• M7i Router Description on page 3

• Overview of M7i Router Installation on page 39

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M7i Multiservice Edge Router Hardware Guide

Page 53

CHAPTER 3

System Architecture Overview

•

System Architecture Overview on page 27

•

M7i and M10i Packet Forwarding Engine Architecture on page 28

•

Routing Engine Architecture on page 29

System Architecture Overview

The router architecture consists of two major components:

•

Packet Forwarding Engine—Performs Layer 2 and Layer 3 packet switching, route lookups, and packet forwarding.

•

Routing Engine—Provides Layer 3 routing services and network management.

The Packet Forwarding Engine and the Routing Engine perform independently but communicate constantly through a 100-Mbps internal link. This arrangement provides streamlined forwarding and routing control and the ability to run Internet-scale networks at high speeds. Figure 18 on page 27 illustrates the relationship between the Packet Forwarding Engine and the Routing Engine.

Documentation

Figure 18: System Architecture

M7i Chassis Description on page 6•

• M7i Midplane Description on page 7

• M7i Power System Description on page 21

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M7i Multiservice Edge Router Hardware Guide

M7i and M10i Packet Forwarding Engine Architecture

The Packet Forwarding Engineperforms Layer 2 and Layer 3packetswitching. The Packet Forwarding Engine is implemented in application-specific integrated circuits (ASICs). It uses a centralized route lookup engine and shared memory.

•

Packet Forwarding Engine Components on page 28

•

Data Flow Through the Packet Forwarding Engine on page 28

Packet Forwarding Engine Components

The Packet Forwarding Engine architecture includes the following components:

•

Midplane—Transports packets, notifications, and other signals between the FPCs and the Packet Forwarding Engine (as well as other system components).

•

Physical Interface Card (PIC)—Physically connects the router to fiber-optic or digital network media. A controller ASIC in each PIC performs control functions specific to the PIC media type.

•

Compact Forwarding Engine Board (CFEB) or Enhanced Compact Forwarding Engine Board (CFEB-E)—Hosts an integrated ASIC, which makes forwarding decisions, distributes data cells to the shared memory, and directs data packets when they are ready for transmission.

Data Flow Through the Packet Forwarding Engine

Use of ASICs promotes efficient movement of data packets through the system. Packets flow through the Packet Forwarding Engine in the following sequence (see Figure 19 on page 29):

1. Packets arrive at an incoming networking interface.

2. The networking interface passes the packets to the CFEB or CFEB-E, where the

integrated ASIC processes the packet headers, divides the packets into 64-byte data cells, and distributes the data cells throughout the memory buffer.

3. The integrated ASIC on the CFEB or CFEB-E performs a route lookup for each packet

and decides how to forward it.

a. If services are configured for the packet, the integrated ASIC reassembles the

packet and passes them to the services interface.

b. The services interface passes the packet to the CFEB or CFEB-E, where the

integrated ASIC processes the packet, divides the packet into 64-byte cells, and distributes the data cells throughout the memory buffer.

c. The integrated ASIC performs a second route lookup for each packet and decides

how to forward it.

4. The integrated ASIC notifies the outbound networking interface.

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Chapter 3: System Architecture Overview

5. The integratedASIC reassembles data cells storedin sharedmemory intodata packets

as they are ready for transmission and passes them to the outbound networking interface.

6. The outbound networking interface transmits the data packets.

Figure 19: Packet Forwarding Engine Components and Data Flow

Documentation

M7i Compact Forwarding Engine Board (CFEB) and Enhanced Compact Forwarding

•

Engine Board (CFEB-E) Description on page 8

• M7i Router Description on page 3

Routing Engine Architecture

The Routing Engine runs the Junos OS, which Juniper Networks has developed and optimized to handle large numbers of network interfaces and routes. The software consists of a set of system processes running in protected memory modules on top of an independent operating system. The Junos kernel supports Junos system processes, which handle system management processes, routing protocols, and control functions (see Figure 20 on page 30).

The Routing Engine has a dedicated 100-Mbps internal connection to the Packet Forwarding Engine.

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M7i Multiservice Edge Router Hardware Guide

Figure 20: Routing Engine Architecture

Routing Engine Functions

The Routing Engine handles all routing protocol processes, as well as the software processes that control the router's interfaces, the chassis components, system management, and user access to the router. These routing and software processes run on topof a kernel that interacts withthe Packet ForwardingEngine. For more information about the processes, see the Junos OS System Basics and Services Command Reference.

The Routing Engine includes the following functions and features:

•

Processing of routing protocol packets—The Routing Engine handles all packets that concern routing protocols, freeingthe Packet Forwarding Engine to handle only packets that represent Internet traffic.

•

Softwaremodularity—Becauseeach software process is devoted to a different function and uses a separate process space, the failure of one process has little or no effect on the others.

•

In-depth Internet functionality—Each routingprotocolis implemented witha complete set ofInternet features and provides full flexibilityfor advertising, filtering,and modifying routes. Routing policies are set according to route parameters (for example, prefix, prefix lengths, and Border Gateway Protocol [BGP] attributes).

•

Scalability—The Junos routing tables have been designed to hold all the routes in current networks with ample capacity for expansion. Additionally, the Junos OS can efficiently support large numbers of interfaces and virtual circuits.

•

Management interface—Different levels of system management tools are provided, including the Junos OS command-line interface (CLI), the Junos XML management protocol, the craft interface, and SNMP.

•

Storage andchange management—Configurationfiles, system images, andmicrocode can be held and maintained in primary and secondary storage systems, permitting local or remote upgrades.

•

Monitoring efficiency and flexibility—The router supports functions such as alarm handling and packet counting on every port, without degrading packet-forwarding performance.

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Chapter 3: System Architecture Overview

The Routing Engine constructs and maintains one or more routing tables (see Figure 21 on page 31). From the routing tables, the Routing Engine derives a table of active routes, called the forwarding table, which is then copied into the Packet Forwarding Engine. The design of the ASICs allow the forwarding table in the Packet Forwarding Engine to be updated without interrupting forwarding performance.

Figure 21: Control Packet Handling for Routing and Forwarding Table Updates

Documentation

• M7i Routing Engine Description on page 18

• Maintaining the M7i Routing Engine on page 72

• Replacing the M7i Routing Engine on page 97

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M7i Multiservice Edge Router Hardware Guide

Page 59

PART 2

Setting Up the M7i Router

•

Preparing the Site for M7i Router Installation on page 35

•

Overview of M7i Router Installation on page 39

•

Unpacking the M7i Router on page 41

•

Installing the M7i Router Mounting Hardware on page 45

•

Installing the M7i Router on page 47

•

Grounding the M7i Router on page 51

•

Connecting the M7i Router to External Devices on page 53

•

Providing Power to the M7i Router on page 57

•

Configuring Junos OS on page 63

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M7i Multiservice Edge Router Hardware Guide

Page 61

CHAPTER 4

Preparing the Site for M7i Router Installation

•

M7i Router Site Preparation Checklist on page 35

•

M7i Router Rack Requirements on page 36

•

M7i Router Clearance Requirements for Airflow andHardware Maintenance onpage 38

M7i Router Site Preparation Checklist

The checklist in Table 8 on page 35 summarizes the tasks you need to perform when preparing a site for router installation.

Table 8: Site Preparation Checklist

Verify that environmental factors such as temperatureand humidity donot exceedrouter tolerances.

NotesDatePerformed ByItem or Task

Documentation

Measure distance between external power sources and router installation site.

Select the type of rack.

Plan rack location, including required space clearances.

Secure rack to floor and building structure.

Acquire cables and connectors.

Locate sites for connection of system grounding.

Calculate power budget and power margin.

M7i Router Description on page 3•

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M7i Multiservice Edge Router Hardware Guide

• M7i Router Physical Specifications on page 159

• M7i Router Clearance Requirements for Airflow andHardware Maintenance onpage 38

M7i Router Rack Requirements

The router can be installed in many types of racks, including four-post (telco) racks and open-frame racks. An example of an open-frame rack appears in Figure 22 on page 37.Table 9 on page 36 summarizes rack requirements and specifications for an M7i router.

Table 9: Rack Requirements and Specifications for an M7i Router

GuidelinesRack Requirement

Rack type and mounting bracket hole spacing

Rack size and strength

Use a four-post rack or a two-post rack. You can mount the router on any four-post or two-post rack that provides bracket holes or hole patterns spaced at 1 U (1.75-in./4.44-cm) increments and that meets the size and strength requirements specified in this table.

A U is the standard rack unit defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310–D) published by the Electronics Industry Association (http://www.eia.org).

•

Ensure that the rack is a 19-in. rack as defined in Cabinets, Racks, Panels, and AssociatedEquipment (document number EIA-310–D) publishedby theElectronics

Industry Association (http://www.eia.org).

•

Ensure that the rack is one of the following standard lengths:

•

23.62 in. (600 mm) With the use of adaptors, the router can fit into a rack that is 600 mm wide and 600 mm deep as defined in the four-part Equipment Engineering (EE); European telecommunications standard for equipment practice (document numbers ETS 300 119-1 through 119-4) published by the European Telecommunications Standards Institute (http://www.etsi.org). Use approved wing devices to narrow the opening between the rails as required.

•

30.0 in. (762 mm)

•

21.5 in. (800 mm)

•

The rack rails must be spaced widely enough to accommodate the router chassis's externaldimensions: 3.5 in. (8.9cm) high,18 in. (45.7 cm) deep,and 17.5 in.(44.5 cm) wide. The outeredges of the mounting brackets extendthe width to19 in. (48.2 cm). The spacing of rails and adjacent racks must also allow for the clearances around the router and rack that are specified in “M7i Router Clearance Requirements for Airflow and Hardware Maintenance” on page 38.

•

The chassis height of 3.5 in. (8.9 cm) is approximately 2 U. A U is the standard rack unit definedin Cabinets, Racks, Panels, and Associated Equipment (documentnumber EIA-310-D) published by the Electronics Industry Association. You can stack 21 M7i routers in a rack that has at least 42 U (73.5 in. or 1.87 m) of usable vertical space.

•

The rack must bestrong enough to supportthe weightof the fully configured router, up to 36.5 lb (16.6 kg). If you stack multiple fully configured routers in one rack, it must be capable of supporting the combined weight of the routers.

•

Ensure that the spacing of rails and adjacent racks allows for the proper clearance around the switch and rack as specified in “M7i Router Clearance Requirements for Airflow and Hardware Maintenance” on page 38.

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Chapter 4: Preparing the Site for M7i Router Installation

Table 9: Rack Requirements and Specifications for an M7i Router (continued)

GuidelinesRack Requirement

•

Rack connection to the building structure

Secure the rack to the building structure.

•

If earthquakes are a possibility in your geographical area, secure the rack to the floor.

•

Secure the rack to the ceiling brackets aswell aswall orfloor brackets formaximum stability.

CAUTION: If you are front-mounting the chassis, we recommend supporting

the back of the router with a shelf or other structure.

Figure 22: Typical Open-Frame Rack

Documentation

Installation Safety Warnings for M Series, MX Series, and T Series Routers on page 131•

• M7i Router Clearance Requirements for Airflow andHardware Maintenance onpage 38

• M7i Router Physical Specifications on page 159

• M7i Router Site Preparation Checklist on page 35

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M7i Multiservice Edge Router Hardware Guide

M7i Router Clearance Requirements for Airflow and Hardware Maintenance

When planning the installation site, you need to allow sufficient clearance around the rack (see Figure 23 on page 38):

•

For the cooling system of side-cooled routers to function properly, the airflow around the chassis must be unrestricted. Allow at least 6 in. (15.2 cm) of clearance between side-cooled routers. Allow 2.8 in. (7 cm) between the side of the chassis and any non-heat-producing surface such as a wall.

•

For service personnel to remove and install hardware components, there must be adequate space at the front and back of the router. Allow at least 24 in. (61 cm) both in front of and behind the chassis. NEBS GR-63 recommends at least 30 in. (76.2 cm) clearance in front of the chassis.

NOTE: We recommend that you do not install the router in a cabinet. If

mounting the router in a cabinet, you must be sure that ventilation is sufficient to prevent overheating.

Figure 23: Chassis Dimensions and Clearance Requirements

Documentation

• M7i Router Description on page 3

• M7i Router Physical Specifications on page 159

Page 65

CHAPTER 5

Overview of M7i Router Installation

•

Overview of M7i Router Installation on page 39

Overview of M7i Router Installation

After you haveprepared your installationsite as described in “M7i Router Site Preparation Checklist” on page 35, you are ready to unpack and install the router. It is important to proceed through the installation process in the following order:

1. Review the safety guidelines explained in “General Safety Guidelines for M Series, MX

Series, and T Series Routers” on page 125 and “General Safety Warnings for M Series, MX Series, and T Series Routers” on page 126.

2. Follow the instructions in “Unpacking the M7i Router” on page 41 and “Verifying the

M7i Router Parts Received” on page 42.

3. Install the cable management system as described in “Installing the M7i Cable

Management System” on page 45.

Documentation

4. If you are center-mounting the router, move the mounting brackets as described in

“Moving the Mounting Brackets” on page 46.

5. Install the router as described in “Installing the M7i Router Into the Rack” on page 47.

6. Connect the grounding cable as described in “Connecting the Grounding Cable to the

M7i Router” on page 51.

7. Connect cables to external devices as described in “Connecting the M7i Router to

Management and Alarm Devices” on page 53.

8. Connect the AC power cords as described in “Connecting Power to an AC-Powered

M7i Router” on page 57 or DC power cables “Connecting Power to a DC-Powered Router” on page 57.

9. Power on the router as described in “Powering on the M7i Router” on page 59.

10. Perform the initial system startup as described in“Initially Configuringthe M7i Router”

on page 63.

• Connecting the M7i Router to a Management Console or Auxiliary Device on page 54

• Connecting the M7i Router to a Network for Out-of-Band Management on page 54

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M7i Multiservice Edge Router Hardware Guide

• M7i Chassis Description on page 6

• M7i Chassis Lifting Guidelines on page 131

Page 67

CHAPTER 6

Unpacking the M7i Router

•

Tools and Parts Required to Unpack the M7i Router on page 41

•

Unpacking the M7i Router on page 41

•

Verifying the M7i Router Parts Received on page 42

Tools and Parts Required to Unpack the M7i Router

To unpack the router and prepare for installation, you need the following tools:

•

Phillips (+) screwdriver, number 2

•

1/2-in. or 13-mm open-end orsocket wrench to remove bracket boltsfrom the shipping pallet

•

Blank panels to cover any slots not occupied by a component

Documentation

M7i Router Description on page 3•

• M7i Chassis Description on page 6

• M7i Chassis Lifting Guidelines on page 131

Unpacking the M7i Router

The router is shipped in a cardboard carton, secured with foam packing material. The carton also contains an accessory box and the M7i Internet Router Installation Quick Start.

To unpack the router, perform these steps (see Figure 24 on page 42):

1. Move the shipping carton to a staging area as close to the installation site as possible,

but where you have enough room to remove the system components.

2. Position the carton so that the arrows are pointing up.

NOTE: The router is maximally protected inside the shipping carton. Do not

unpack it until you are ready to begin installation.

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M7i Multiservice Edge Router Hardware Guide

3. Open the top flaps on the shipping carton.

4. Remove the accessory box and verify the contents against the parts inventory on the

label attached to the carton.

5. Pull out the packing material holding the router in place.

6. Verify the chassis components received against the packing list included with the

router. A generic parts inventory appears in Table 10 on page 43.

7. Save the shipping crate, packing materials, and pallet in case you later need to move

or ship the router.

Figure 24: Unpacking the Router

Documentation

M7i Router Description on page 3•

• M7i Router Physical Specifications on page 159

• M7i Router Rack Requirements on page 36

Verifying the M7i Router Parts Received

A packing list is included in each shipment. Check the parts in the shipment against the items on the packing list. The packing list specifies the part numbers and descriptions of each part in your order.

If any part is missing, contact a customer service representative.

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Chapter 6: Unpacking the M7i Router

A fully configured router contains the router chassis with installed components, listed in Table 10 on page 43, and an accessory box, which contains the parts listed in Table 11 on page 43. The parts shipped with your router can vary depending on the configuration you ordered.

Table 10: Generic Inventory of Router Components Installed in the M7i Chassis

QuantityComponent

Up to 4PIC

FIC

Table 11: Accessory Box Parts List

self-tapping

1 (2-port Fast Ethernet or 1-port Gigabit Ethernet)

1Routing Engine

1Midplane

1CFEB or CFEB-E

1Fan tray

1 or 2Power supply

2Mounting brackets

Depends on router configurationBlank panels for slots without components

QuantityPart

4Screws, Screw, Pan hd, Phil, 12-24 x 1/2", self-tapping

4Screws, Flat Hd, Phil, 5 x 10.5mm Long, 1.6mm Pitch,

vinyl insulated

strain relieved, for DC power cables

2Terminal lugs, 16-AWG to 14-AWG, #6 stud, ring terminal,

9 (2 per power supply)Terminal fork lugs, 14-AWG, #6, 0.25 Wide, insulation

2Terminal lugs, 14-AWG, #8 stud, ring tongue, insulated

1Terminal lugs, 14-AWG, two hole for grounding

1DB-9 (male) to DB-25 (female) serial adapter

1Serial cable, Console, DB9F/DB9F

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M7i Multiservice Edge Router Hardware Guide

Table 11: Accessory Box Parts List (continued)

QuantityPart

1Label, contents, 3-1/3" x 4", M7i/M10i

1Label, Accessory Kit Label, Green "Small Parts Enclosed"

1Read me first document

1JNPR Compliance Form Letter, RoHS Worldwide

1Affidavit for T1 connection

1Juniper Networks Product Warranty

1End User License Agreement

1Addendum, Documentation Card for Routing Platforms

Documentation

1Document sleeve

23" x 5" pink bag

29" x 12" pink bag, ESD

1Accessory box, 19 x 12 x 3"

1Ethernet cable, RJ-45/RJ-45, 4-pair stranded UTP,

Category 5E, 15'

1ESD wrist strap with cable

• M7i Router Description on page 3

• M7i Router Physical Specifications on page 159

• M7i Chassis Description on page 6

Page 71

CHAPTER 7

Installing the M7i Router Mounting Hardware

•

Installing the M7i Cable Management System on page 45

•

Moving the Mounting Brackets on page 46

Installing the M7i Cable Management System

The cable management system organizes and supports the PIC cablesto prevent damage.

To install the cable management system (see Figure 25 on page 45):

1. Attach anelectrostatic discharge(ESD) grounding strap to yourbare wristand connect

the strap to one of the ESD points on the chassis. Verify that the router is attached to a proper earth ground.

2. Use a number 2 Phillips screwdriver to loosen the screws that secure the mounting

brackets to the chassis, and remove the mounting brackets.

Documentation

3. Locate the cable management racks and appropriate screws in the accessory box.

4. Slide the cable management rack into the slots at the front of the chassis.

5. Use a number 2 Phillips screwdriver to tighten the screws that secure the cable

management system to the chassis.

6. Reinstall the mounting brackets.

Figure 25: Installing the Cable Management System

M7i Cable Management System on page 25•

• M7i Chassis Description on page 6

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M7i Multiservice Edge Router Hardware Guide

Moving the Mounting Brackets

For anopen-frame rack, center-mountingis preferable,because themore even distribution of weight provides greater stability. The router is shipped with the mounting brackets already installed for front-mounting, as shown in Figure 1 on page 6.

To move the mounting brackets before center-mounting the router:

1. Move the mounting brackets to the center of the chassis.

2. Secure the mounting brackets to the chassis by installing screws along both the front

and rear of the brackets.

Documentation

• Installation Safety Warnings for M Series, MX Series, and T Series Routers on page 131

• Installing the M7i Router Into the Rack on page 47

Page 73

CHAPTER 8

Installing the M7i Router

•

Tools and Parts Required to Install the M7i Router Into a Rack on page 47

•

Installing the M7i Router Into the Rack on page 47

Tools and Parts Required to Install the M7i Router Into a Rack

To install the chassis into a rack, you need the following tools and parts:

•

Phillips (+) screwdriver, number 2

Documentation

Initially Configuring the M7i Router on page 63•

• M7i Chassis Description on page 6

• M7i Chassis Lifting Guidelines on page 131

Installing the M7i Router Into the Rack

CAUTION: Depending on configuration, the chassis weighs between 28.2 lb (12.8 kg) and 36.5 lb (16.6 kg). Installing it into the rack requires at least one person to lift and another person to secure the mounting screws.

First, perform the following prerequisite procedures:

•

Verify that the router site meets the requirements described in “M7i Router Site Preparation Checklist” on page 35.

•

Place the rack in its permanent location, allowing adequate clearance for airflow and maintenance, and secure it to the building structure. For details, see “M7i Router Rack Requirements” on page 36.

•

Readthe information in “General Safety Guidelines for M Series, MX Series, and T Series Routers”on page 125 and“General Safety Warnings for M Series, MX Series, and T Series Routers” on page 126.

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M7i Multiservice Edge Router Hardware Guide

•

Review the guidelines in “M7i Chassis Lifting Guidelines” on page 131.

•

Removethe router from the shipping carton, asdescribed in“Unpacking theM7i Router” on page 41.

Then, perform the following procedures to install the router:

1. If you are center-mounting the router, move the mounting brackets on the chassis as

described in “Moving the Mounting Brackets” on page 46.

2. Have one person grasp each side of the router, lift the router, and position it in the

rack.

3. Align the bottom hole in both mounting brackets with a hole in each rack rail, making

sure the chassis is level.

NOTE: If you are installing multiple routers in one rack, install the lowest one

first and proceed upward in the rack.

4. Install one of the mounting screws provided (in the accessory box shipped with the

router) into each of the two aligned holes. Use a Phillips screwdriver to tighten the screws.

Figure 26: Installing the Router

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Chapter 8: Installing the M7i Router

5. Install the second screw in each mounting ear.

6. Verify that all the mounting screws on one side of the rack are aligned with the

mounting screws on the opposite side and that the router is level.

7. To continue the installation, proceed to “Connecting the M7i Router to Management

and Alarm Devices” on page 53.

Documentation

• Overview of M7i Router Installation on page 39

• Initially Configuring the M7i Router on page 63

• M7i Chassis Lifting Guidelines on page 131

• M7i Router Physical Specifications on page 159

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M7i Multiservice Edge Router Hardware Guide

Page 77

CHAPTER 9

Grounding the M7i Router

•

Connecting the Grounding Cable to the M7i Router on page 51

Connecting the Grounding Cable to the M7i Router

To connect the grounding cable:

1. Attach anelectrostatic discharge(ESD) grounding strapto yourbare wrist,and connect

the strap to an approved site ESD grounding point. See the instructions for your site.

2. Connect the grounding cable to a proper earth ground.

3. Verify that a licensed electrician has attached the cable lug provided with the router

to the grounding cable.

4. Make sure that grounding surfaces are clean and brought to a bright finish before

grounding connections are made.

5. Using anumber 2 Phillips screwdriver, remove thescrews next tothe grounding symbol

above the power supplies on the chassis rear. Secure the grounding cable lug to the chosen grounding point by reinstalling and tightening the screws.

Documentation

6. Verify that the grounding cabling is correct, that the grounding cable does not touch

or block access to router components, and that it does not drape where people could trip on it.

• M7i Chassis Description on page 6

• Preventing Electrostatic Discharge Damage to an M7i Router on page 128

• M7i Chassis Grounding, Connection, and Cable Specifications on page 167

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M7i Multiservice Edge Router Hardware Guide

Page 79

CHAPTER 10

Connecting the M7i Router to External Devices

After installing the router into the rack as described in “Installing the M7i Router Into the Rack” on page 47, complete the installation by performing the procedures described in the following topics:

•

Tools and Parts Required for M7i Router Connections on page 53

•

Connecting the M7i Router to Management and Alarm Devices on page 53

•

Inserting an SFP into the 1-port Gigabit Ethernet FIC on page 55

•

Connecting FIC and PIC Cables to the M7i Router on page 55

Tools and Parts Required for M7i Router Connections

To connect the router to management devices and PICs and to power on the router, you need the following tools and parts:

•

Electrostatic discharge (ESD) grounding wrist strap

Documentation

M7i Router Power Requirements on page 163•

• M7i Router Site Preparation Checklist on page 35

Connecting the M7i Router to Management and Alarm Devices

After you haveinstalled the router into the rack, connectthe router to one or more external devices for management and service operations.

To connect external devices, perform the procedures described in the following topics:

•

Connecting the M7i Router to a Network for Out-of-Band Management on page 54

•

Connecting the M7i Router to a Management Console or Auxiliary Device on page 54

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M7i Multiservice Edge Router Hardware Guide

Connecting the M7i Router to a Network for Out-of-Band Management

To connect the Routing Engine to a network for out-of-band management, insert an Ethernet cable with RJ-45/RJ-45 connectors into the MGMT port on the Routing Engine. One such cable is provided with therouter (see “Routing Engine Interface Cable and Wire Specifications for the M7i Router” on page 179). Follow this procedure:

1. Plug one end of the Ethernet cable (Figure 27 on page 54 shows the connector) into

the MGMT port on the Routing EngineFigure 28 on page 54 shows the layout of the ports on the Routing Engine.

2. Plug the other end of the cable into the network device.

Figure 27: Routing Engine Ethernet Cable Connector

Figure 28: Routing Engine Interface Ports

Connecting the M7i Router to a Management Console or Auxiliary Device

To use a system console to configure and manage the Routing Engine, connect it to the

CONSOLE port on the Routing Engine. To use a laptop, modem, or other auxiliary device,

connect it to the AUX/MODEM port on the Routing Engine. Both ports accept an RS-232 (EIA-232) serial cable with DB-9/DB-9 connectors. One such cable is provided with the router. If you want to connect a device to both ports, you must supply another cable. See “Routing Engine Interface Cable and Wire Specifications for the M7i Router” on page 179. To connect a management console or auxiliary device:

1. Turn off the power to the console or auxiliary device.

2. Plug the female end (shown in Figure 29 on page 54) of the provided console cable

into the CONSOLE or AUX/MODEM port. “Connecting the M7i Router to a Network for Out-of-Band Management” on page 54 shows the layout of the ports on the Routing Engine.

3. Tighten the screws on the connector.

Figure 29: Console and Auxiliary Serial Port Connector

Documentation

Routing Engine Interface Cable and Wire Specifications for the M7i Router on page 179.•

• M7i Power System Description on page 21

• M7i Router Power Requirements on page 163

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Chapter 10: Connecting the M7i Router to External Devices

• M7i Router Site Preparation Checklist on page 35

• Initially Configuring the M7i Router on page 63

• Connecting Power to an AC-Powered M7i Router on page 57

• Connecting Power to a DC-Powered Router on page 57

Inserting an SFP into the 1-port Gigabit Ethernet FIC

Before inserting cables into the 1-port Gigabit Ethernet FIC, you must install a small form-factor pluggable (SFP). Small form-factor pluggable (SFP) optical transceiver modules provide support for SX, LX, and LH optics.

To install an SFP into the FIC, follow this procedure:

1. Verify that each SFP has a rubber safety cap covering the optical transceiver. If it does

not, cover the transceiver with a safety cap.

2. Carefully align the SFP with the slot in the FIC. The connector should face down.

3. Slide the SFP until the connector is seated in the FIC slot. If you are unable to fully

insert the SFP, make sure the connector is facing the proper direction.

Documentation

Installing an SFP into an M7i Router on page 96•

• Replacing an SFP on an M7i Router on page 94

Connecting FIC and PIC Cables to the M7i Router

WARNING: Do not look directlyinto transceivers or into the ends of fiber-optic cables connected to a transceiver. Fiber-optic transceivers emit laser light that can damage your eyes.

CAUTION: When handling fiber-optic transceivers and fiber-optic cable, observe the following precautions:

•

Do not leave a fiber-optic transceiver uncovered except when inserting or removing cable. The safety cap keeps the port clean and prevents accidental exposure to laser light.

•

Do not bend fiber-optic cable beyond its minimum bend radius. An arc smaller than a few inches in diameter can damage the cable and cause problems that are difficult to diagnose.

•

Do not let fiber-optic cable hang free from the connector. Do not allow fastenedloopsof cableto dangle,which stressesthe cableatthe fastening point.

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Plug network cables into the FIC and the PICs housed in the router.

To connect cables into the cable connector ports in the FIC or a PIC faceplate (see Figure 30 on page 56, which shows a fiber-optic PIC):

1. Have ready a length of the type of cable used by the FIC or PIC, as specified in “FIC

Specifications for the M7i Router” on page 173 or the M7i Multiservice Edge Router PIC Guide.

2. If the cable connector port is covered by a rubber safety plug, remove the plug.

3. Insert the cable connector into the cable connector port on the FIC or PIC faceplate.

4. Arrange the cable to prevent it from dislodging or developing stress points. Secure

the cable so that it is not supporting its own weight as it hangs to the floor. Place excesscable out of the wayin a neatly coiled loop.Placing fasteners on the loop helps to maintain its shape.

Figure 30: Attaching the Cable to a PIC

Documentation

• Fiber-Optic and Network Cable Specifications for the M7i Router on page 174

• M7i Fixed Interface Card (FIC) Description on page 15

• M7i Flexible PIC Concentrators (FPCs) Description on page 18

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CHAPTER 11

Providing Power to the M7i Router

•

Connecting Power to an AC-Powered M7i Router on page 57

•

Connecting Power to a DC-Powered Router on page 57

•

Powering on the M7i Router on page 59

•

Powering Off the M7i Router on page 60

Connecting Power to an AC-Powered M7i Router

To connect power to an AC-powered router:

1. Locate the power cords shipped withthe router, which should have a plug appropriate

for your geographical location (see “M7i Router AC Power, Connection, and Power Cord Specifications” on page 164).

2. Attach anelectrostatic discharge(ESD) grounding strapto yourbare wrist,and connect

the strap to one of the ESD points on the chassis.

3. Verify that the switch on each power supply faceplate is in the OFF (O) position.

4. For each power supply, insert the appliance coupler end of a power cord into the

appliance inlet on a power supply faceplate and insert the plug into an AC power source receptacle. Verify that the power cord does not block access to router components or drape where people could trip on it.

Documentation

Preventing Electrostatic Discharge Damage to an M7i Router on page 128•

• Removing an M7i AC Power Cord on page 110

• M7i AC Power Electrical Safety Guidelines and Warnings on page 149

• M7i AC Power Supply on page 22

• M7i Router AC Power Supply Specifications on page 166

Connecting Power to a DC-Powered Router

Connect DC power to the router by inserting power cables into the field-wiring terminals on the faceplate of each power supply. Power cables are not supplied with the router. For information about the required cable type, see .

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M7i Multiservice Edge Router Hardware Guide

To connect DC power to the router (see Figure 31 on page 59):

1. Verify that there is no power flowing from either external power source, so that the

voltage across the leads of the power cables is 0 V. Ensure that there is no chance that the cable leads might become active during the procedure.

NOTE: The router must be connected to at least two separate external DC

power sources.

CAUTION: There is no standard color coding for DC power cables. The color coding used by the external DC power source at your site determines the color coding for the leads on the power cables that attach to the terminal studs on each power supply. You must ensure that power connections maintain the proper polarity. The power source cables might be labeled (+) and (–) to indicate their polarity.

2. Verify that a licensed electrician has attached a listed power cable lug to each power

source cable.

3. Loop the power cables through the hook located on the faceplate to the right of the

field-wiring terminals.

4. Depending on the type of power cable lugs used, loosen or remove the screws on the

field-wiring terminals.

5. Insert thepower cable lugs intothe appropriate field-wiring terminals.Using a number

1 Phillips screwdriver, turn the screw on each field-wiring terminal clockwise to secure the power cable lug. Apply between 8 lb-in. (.9 Nm) and 9 lb-in. (1.02 Nm) of torque to each screw.

a. Insert the positive (+) source cable into the return terminal, which is labeled RTN.

b. Insert the negative (–) source cable into the input terminal, which is labeled –48V.

6. Verify that the DC source power cabling and the grounding cabling are correct, that

they are not touching or blocking access to router components, and that they do not drape where people could trip on them.

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Figure 31: Connecting DC PowerCables

Chapter 11: Providing Power to the M7i Router

Documentation

Removing an M7I DC Power Cable on page 115•

• M7i DC Power Electrical Safety Guidelines on page 149

• M7i DC Power Supply on page 23

• M7i Router DC Power Supply Specifications on page 170

Powering on the M7i Router

To power on the router:

1. Verify that the power supplies are fully inserted in the chassis and the thumbscrews

on their faceplates are tightened.

2. For each power supply on an AC-powered router, verify that the ends of the power

cord are firmly plugged into the appliance inlet on the power supply faceplate and the external power source receptacle.

For each power supply ona DC-powered router,verify that thesource DC powercables are connected tothe appropriateterminal on the power supply faceplate: the positive (+) source cable to the return terminal (labeled RTN) and the negative (–) source cable to the input terminal (labeled –48V).

3. Verify that an external management device is connected to oneof the Routing Engine

ports onthe Routing Engine (AUX/MODEM, CONSOLE, or MGMT). For more information on connecting management devices, see “Connecting the M7iRouter to Management and Alarm Devices” on page 53.

4. Turn on the power to the external management device.

5. Press the power switch for one power supply to the ON ( | ) position. On both AC and

DC power supplies, the switch is located on the power supply faceplate.

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6. Verify that the OUTPUT OK LED lights steadily.

7. Press the power switch for the second power supply to the ON ( | ) position and verify

that the OUTPUT OK LED lights steadily. If the LED does not light after 60 seconds, verify that the power supply is properly inserted into the chassis and repeat the cable installationprocedures described in “Connecting Power to an AC-PoweredM7i Router” on page 57 or “Connecting Power to a DC-Powered Router” on page 57.

NOTE: After powering off a powersupply, wait at least60 seconds before

turning it back on. After powering on a power supply, wait at least 60 seconds before turning it off.

If the router is completely powered off when you power on the power supply, the Routing Engine bootsas the power supplycompletesits startup sequence. If the Routing Engine finishes booting and you need to power off the router again, see “Powering Off the M7i Router” on page 60.

Aftera powersupply is poweredon, it can take upto 60 secondsfor status indicators—such as the output status LED on the power supply, the command display output, and messages on the LED display on the craft interface—to indicatethat thepower supplyis functioning normally. Ignore error indicators that appear during the first 60 seconds.

8. On the external management device connected to the Routing Engine, monitor the

startup process to verify that the system has booted properly.

Documentation

Troubleshooting the M7i Power System When the LED on One M7i Power Supply Is Off

•

on page 81

• Troubleshooting the M7i Power System When the LEDs on All M7i Power Supplies Are

Blinking or Off on page 81

• General Electrical Safety Guidelines and Electrical Codes for M Series, MX Series, and

T Series Routers on page 148

Powering Off the M7i Router

To power off the router:

1. Onthe console or other managementdevice connected to the master Routing Engine,

enter CLI operational mode and issuethe following commandto shutdown therouter software.(If two Routing Enginesare installed, also issuethe commandon thebackup Routing Engine.)

user@host> request system halt

NOTE: Wait until a message appears on the console confirming that the operating system has halted.

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Chapter 11: Providing Power to the M7i Router

For moreinformationabout the command, seethe JunosOS System Basics and Services Command Reference.

NOTE: The CFEB might continue forwarding traffic for approximately 5

minutes after the request system halt command has been issued.

2. Press the power switch on each power supply faceplate to the OFF (O) position.

3. Shut down power to the router by pressing the power switch for all power supplies to

the off (O) position. On both AC and DC power supplies, the switch is located on the power supply faceplate.

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M7i Multiservice Edge Router Hardware Guide

Page 89

CHAPTER 12

Configuring Junos OS

•

Initially Configuring the M7i Router on page 63

Initially Configuring the M7i Router

The router is shipped with the Junos OS preinstalled and ready to be configured when the router is powered on.

The default bootorder forthe M7i Multiservice EdgeRouter is different from other Juniper Networks routers, because the default configuration of the Routing Engine on the M7i router does not include an CompactFlash card.

If the Routing Engine does not have an CompactFlash card, two copies of the Junos OS are preinstalled on the router: one on a PC card that can be inserted into the slot in the Routing Engine faceplate, and one on a rotating hard disk in the Routing Engine. When the router boots, it first attempts to access the software image on the PC card. If a PC card isnot inserted into the Routing Engine or the attempt otherwise fails, the router tries the hard disk.

If the Routing Engine has an CompactFlash card, three copies of the Junos OS are preinstalled on the router and the boot order is as follows. The router first attempts to access the image on the PC card. If a PC card is not inserted into the Routing Engine or the attempt otherwise fails, the router next tries the CompactFlash card, and finally the hard disk.

You configure the router by issuing Junos OS command-line interface (CLI) commands, either on a console device attached to the CONSOLE port on the Routing Engine, or over a telnet connection to a network connected to the MGMT port on the Routing Engine. Gather the following information before configuring the router:

•

Name the router will use on the network

•

Domain name the router will use

•

IP address and prefix length information for the Ethernet interface

•

IP address of a default router

•

IP address of a DNS server

•

Password for the root user

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M7i Multiservice Edge Router Hardware Guide

This procedure connects the router to the network but does not enable it to forward traffic. For complete information about enabling the router to forward traffic, including examples, see the Junos OS configuration guides.

To configure the software:

1. Verify that the router is powered on as described in “Powering on the M7i Router” on

page 59.

2. Log in as the “root” user. There is no password.

3. Start the CLI.

root# cli root@>

4. Enter configuration mode.

cli> configure [edit] root@#

5. Configure the name of the router. If the name includes spaces, enclose the name in

quotation marks (“ ”).

[edit] root@# set system host-name host-name

6. Configure the router’s domain name.

[edit] root@# set system domain-name domain-name

7. Configure the IP address and prefix length for the router’s Ethernet interface.

[edit] root@# set interfaces fxp0 unit 0 family inet address address/prefix-length

8. Configure the IP address of a DNS server.

[edit] root@# set system name-server address

9. Set the root authentication password by entering either a clear-text password, an

encrypted password, or an SSH public key string (DSA or RSA).

[edit] root@# set system root-authentication plain-text-password New password: password Retype new password: password

[edit] root@# set system root-authentication encrypted-password encrypted-password

[edit] root@# set system root-authentication ssh-dsa public-key

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Chapter 12: Configuring Junos OS

[edit] root@# set system root-authentication ssh-rsa public-key

10. Optionally, display the configuration to verify that it is correct.

[edit] root@# show system {

host-name host-name; domain-name domain-name; backup-router address; root-authentication {

authentication-method (password | public-key);

} name-server {

address;

} } interfaces {

fxp0 {

unit 0 {

family inet {

address address/prefix-length;

}

} }

11. Commit the configuration to activate it on the router.

[edit] root@# commit

12. Optionally, configure additional properties by adding the necessary configuration

statements. Then commit the changes to activate them on the router.

[edit] root@host# commit

13. When you have finished configuring the router, exit configuration mode.

[edit] root@host# exit root@host>

NOTE: To reinstall the Junos OS, you boot the router from the removable media. Do not insert the removable media during normal operations. The routerdoes not operate normallywhen it is booted fromthe removable media.

When therouter boots from the storage media(removablemedia, internalCompactFlash card, or hard disk) it expands its search in the /config directory of the routing platform for the following files in the following order: juniper.conf (the main configuration file),

rescue.conf (the rescue configuration file), and juniper.conf.1 (the first rollback

configuration file). When the search finds the first configuration file that can be loaded properly, the file loads and the search ends. If none of the file can be loaded properly,

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M7i Multiservice Edge Router Hardware Guide

the routing platform does not function properly. If the router boots from an alternate boot device, theJunos OSdisplays a message indicationthis whenyou log in to therouter.

Documentation

• M7i Router Description on page 3

• Overview of M7i Router Installation on page 39

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PART 3

Hardware Maintenance, Troubleshooting, and Replacement Procedures

•

Maintaining M7i Router Hardware Components on page 69

•

Troubleshooting M7i Hardware Components on page 75

•

Replacing M7i Hardware Components on page 85

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M7i Multiservice Edge Router Hardware Guide

Page 95

CHAPTER 13

Maintaining M7i Router Hardware Components

This chapter describes how to maintain hardware components installed in the router.

For information about returning a part to Juniper Networks for repair or replacement, see “Contacting Customer Support and Returning M7i Hardware” on page 187.

•

Routine Maintenance Procedures for the M7i Router on page 69

•

Maintaining the M7i CFEB and CFEB-E on page 69

•

Maintaining the M7i FIC and FIC Cables and PICs and PIC Cables on page 70

•

Maintaining the M7i Routing Engine on page 72

•

Maintaining the M7i Power Supplies on page 72

•

Maintaining the M7i Cooling System on page 74

Routine Maintenance Procedures for the M7i Router

Purpose For optimum router performance, perform preventive maintenance procedures.

Action Inspect the installation site for moisture, loose wires or cables, and excessive dust.

Documentation

•

Make sure that airflow is unobstructed around the router and into the air intake vents.

• Check the status-reporting devices on the craft interface—System alarms and LEDs.

M7i Router Environmental Specifications on page 161•

• M7i Router Physical Specifications on page 159

• Packing the M7i Router for Shipment on page 193

• Overview of Troubleshooting Resources for the M7i Router on page 75

Maintaining the M7i CFEB and CFEB-E

Purpose For optimum cooling, verify the condition of the CFEB.

Action Check the LEDs on the CFEB or CFEB-E faceplate. The green LED labeled OK lights

•

steadily on the CFEB or CFEB-E when it is functioning normally. For more information,

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M7i Multiservice Edge Router Hardware Guide

see “M7iCompactForwarding EngineBoard (CFEB) and Enhanced Compact Forwarding Engine Board (CFEB-E) Description” on page 8.

• Issue the CLI show chassis cfeb command to check the status of the CFEB (first output

example) or the CFEB-E (second output example):

user@host> show chassis cfeb

CFEB status: State Online Intake Temperature 27 degrees C / 80 degrees F Exhaust Temperature 33 degrees C / 91 degrees F CPU utilization 3 percent Interrupt utilization 0 percent Heap utilization 8 percent Buffer utilization 21 percent Total CPU DRAM 128 MB Internet Processor II Version 1, Foundry IBM, Part number 164 Start time: 2003-06-11 11:41:22 PDT Uptime: 1 hour, 39 minutes, 31 seconds

user@host> show chassis cfeb

CFEB—E status: State Online Intake Temperature 27 degrees C / 80 degrees F Exhaust Temperature 33 degrees C / 91 degrees F CPU utilization 3 percent Interrupt utilization 0 percent Heap utilization 8 percent Buffer utilization 21 percent Total CPU DRAM 128 MB Internet Processor II Version 1, Foundry IBM, Part number 164 Start time: 2003-06-11 11:41:22 PDT Uptime: 1 hour, 39 minutes, 31 seconds

For further description of the output from the command, see the Junos OS System Basics and Services Command Reference.

Documentation

Replacing, Upgrading, and Downgrading the M7i CFEB and CFEB-E on page 86•

• Installing the M7i CFEB and CFEB-E on page 88

• Troubleshooting the M7i CFEB and CFEB-E on page 80

Maintaining the M7i FIC and FIC Cables and PICs and PIC Cables

Purpose For optimum performance, verify the condition of the FIC and FIC cables and PICs and

PIC cables.

Action • Check the LEDs on the FIC faceplate. The Fast Ethernet and Gigabit Ethernet ports on

the FIC have LEDs that display the status of the ports. For more information, see “M7i Fixed Interface Card (FIC) Description” on page 15.

• Check the LEDs on PIC faceplates. Most PIC faceplates have an LED labeled STATUS.

Some PICs have additional LEDs, often one per port. The meaning of the LED states

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Chapter 13: Maintaining M7i Router Hardware Components

differs for various PICs. For more information, see the M7i Multiservice Edge Router PIC Guide.

• Issue the CLI show chassis fpc pic-status command. The following example specifies

an FPC slot number (0), which is optional.

user@host> show chassis fpc pic-status 0

Slot 0 Online PIC 0 2x OC-3 ATM, MM PIC 1 2x CT3-NxDS0 PIC 2 2x OC-3 ATM, MM

For further description of the output from the command, see the Junos OS System Basics and Services Command Reference.

• Support cables to prevent them from dislodging or developing stress points.

• Place excess cable out of the way, using the cable management system on the rack.

Do not allow fastened loops of cable to dangle from the ladder rack because this stresses the cableat thefastening point. Putting fasteners on the loops help to maintain their shape.

• Keep the cableconnections clean andfree ofdust and other particles,which cancause

drops in the received power level. Always inspect cables and clean them if necessary before connecting an interface.

• Label all interface cables to identify them, labeling each end of the cable the same.

The following guidelines apply specifically to fiber-optic cable:

• When you unplug a fiber-optic cable from a FIC or PIC, always place a rubber safety

plug over the transceiver on the FIC or PIC faceplate and on the end of the cable.

• Anchor fiber-optic cable to avoid stress on the connectors. When attaching fiber to an

interface, be sure to secure the fiber so it is not supporting its own weight as it hangs to the floor. Never let fiber-optic cable hang free from the connector.

• Avoid bending fiber-optic cable beyond its bend radius. An arc smaller than a few

inches can damage the cable and cause problems that are difficult to diagnose.

• Frequent plugging and unplugging of fiber-optic cable into and out of optical

instruments, such as ATM or SONET/SDH analyzers, can cause damage to the instruments that is expensive to repair. Instead, attach a short fiber extension to the optical equipment. Any wear and tear due to frequent plugging and unplugging is then absorbed by the short fiber extension, which is easy and inexpensive to replace.

• Keep fiber-optic cable connections clean. Small micro-deposits of oil and dust in the

canal of the transceiver or cable connector can cause loss of light, reducing signal power and possibly causing intermittent problems with the optical connection.

To clean the transceivers, use an appropriate fiber-cleaning device, such as RIFOCS 945/946 Fiber Optic Connector Cleaning System. Follow the directions for the cleaning kit you use.

After you have cleaned the transceiver on the fiber-optic interface, make sure that the connector tip of the fiber-optic cable is clean. Use only an approved alcohol-free

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M7i Multiservice Edge Router Hardware Guide

fiber-optic cable cleaning kit such as the Cletop - Cletop Reel-Type Cleaner – Part# CLETOP-RL. Follow the directions for the cleaning kit you use.

Documentation

Replacing an M7i FIC or PIC Cable on page 92•

• Troubleshooting the M7i FIC or PICs on page 80

Maintaining the M7i Routing Engine

Purpose For optimum performance, verify the condition of the Routing Engine.

Action Check the LEDs on the Routing Engine. The green LED labeled ONLINE lights steadily

•

when it is functioning normally. For more information about the LEDs, see “M7i Routing Engine Description” on page 18.

• Issue the CLI show chassis routing-engine command to check the status of the Routing

Engines:

user@host> show chassis routing-engine

Routing Engine status:

Temperature 26 degrees C / 78 degrees F DRAM 256 MB Memory utilization 27 percent CPU utilization: User 0 percent Background 0 percent Kernel 4 percent Interrupt 0 percent Idle 96 percent Model RE-5.0 Serial ID 1000392782 Start time 2003-06-11 11:39:32 PDT Uptime 1 hour, 41 minutes, 51 seconds Load averages: 1 minute 5 minute 15 minute

0.00 0.03 0.05

For further description of the output from the command, see the Junos OS System Basics and Services Command Reference.

Documentation

Replacing the M7i Routing Engine on page 97•

• Routing Engine Interface Cable and Wire Specifications for the M7i Router on page 179

Maintaining the M7i Power Supplies

Purpose For optimum router performance, verify the condition of the power supplies.

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Chapter 13: Maintaining M7i Router Hardware Components

Action • Check that the green OUTPUT OK LED is lit on the faceplate of both power supplies.

For more information about the LED, see “M7i Power Supply LEDs” on page 24.

• Issue the following CLI command to check the status of the power supplies. As shown

in thesample output,the value OK in the Status column indicates that the power supply is operating normally:

user@host> show chassis environment

Class Item Status Measurement Power Power Supply 0 OK Power Supply 1 OK Temp Intake OK 24 degrees C / 75 degrees F PICs OK 27 degrees C / 80 degrees F Power Supplies OK 27 degrees C / 80 degrees F CFEB Intake OK 27 degrees C / 80 degrees F CFEB Exhaust OK 33 degrees C / 91 degrees F Routing Engine OK 26 degrees C / 78 degrees F Fans Left Fan Tray Present Left Tray front fan OK Spinning at normal speed Left Tray second fan OK Spinning at normal speed Left Tray third fan OK Spinning at normal speed Left Tray fourth fan OK Spinning at normal speed

Documentation

For further description of the output from the command, see the Junos OS System Basics and Services Command Reference.

• Check the red and yellow alarm LEDs on the FIC. Power supply failure or removal

triggers an alarm that causes one or both of the LEDs to light. You can display the associated error messages by issuing the following CLI command:

user@host> show chassis alarms

For a list of possible alarm messages, see “Hardware and Interface Alarm Messages” on page 76.

• Verify that the power source has the proper current rating and that each power supply

is connected to a separate power source.

• Verify that the cable or cord connecting the power supply to the external power source

is securely in place and that there is no moisture accumulating near the router.

• Verify that the cable or cord from the power source to the router is not damaged. If the

insulation is cracked or broken, replace the cable or cord immediately.

• Verify that the power cables or cord do not touch or obstruct access to other router

components, and that they do not drape where people could trip on them.

• Verify that the air flow in and out of cooling system components is not obstructed.

M7i Power System Description on page 21•

• M7i Router Power Requirements on page 163

• Troubleshooting the M7i Power System When the LED on One M7i Power Supply Is Off

on page 81

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M7i Multiservice Edge Router Hardware Guide

• Troubleshooting the M7i Power System When the LEDs on All M7i Power Supplies Are

Blinking or Off on page 81

Maintaining the M7i Cooling System

Purpose For optimum cooling, verify the condition of the fans.

Action The router has a single fan tray that installs into the back of the chassis, as shown in

Figure 2 on page 6.

To check the status of the fans in the fan tray, issue the show chassis environment command. The output includes an entry for each fan in the fan tray:

user@host> show chassis environment Class Item Status Measurement Power Power Supply 0 OK Power Supply 1 OK Temp Intake OK 24 degrees C / 75 degrees F PICs OK 27 degrees C / 80 degrees F Power Supplies OK 27 degrees C / 80 degrees F CFEB Intake OK 27 degrees C / 80 degrees F CFEB Exhaust OK 33 degrees C / 91 degrees F Routing Engine OK 26 degrees C / 78 degrees F Fans Left Fan Tray Present Left Tray front fan OK Spinning at normal speed Left Tray second fan OK Spinning at normal speed Left Tray third fan OK Spinning at normal speed Left Tray fourth fan OK Spinning at normal speed

Documentation

For further description of the output from the command, see the Junos OS System Basics and Services Command Reference.

• M7i Cooling System Overview on page 24

• Replacing the M7i Fan Tray on page 117

Juniper M7I Hardware Manual

Specifications and Main Features

Frequently Asked Questions

User Manual