Juniper networks T320 User Manual

T320 Core Router

Hardware Guide

Published: 2010-10-28

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

This product 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.

T320 Core Router Hardware Guide

Revision History October 2010—Corporate rebranding. August 2010—Corporate rebranding. May 2010—For Junos OS Release 10.0 and later, added support of the external clock inputs on the SCG. September 2009—Completed topic conversion. 18 March2008— 530-021111-01 Revision 2.Updated high-availability information. Updated recommendation for theminimum circuit breaker for each input. 22 June 2007— 530-021111-01 Revision 1. Removed the end-of-life CB, Added the first supported Junos OS release for each FPC. Corrected the description of the T-CB, clearance and rack requirements, mounting hardware procedures, output of the show chassis environment pem command, the note regarding matching voltage, and the gauge of the DC power and grounding cables. 20 October 2006— 530-017397-01 Revision 1. Added European Community EMC Declaration of Conformity. 28 June2006—530-014305-01 Revision3. CorrectedDC system current rating andFPC1, FPC2, andFPC3 current requirements, and updated the corresponding power calculation examples. Added how much torque to apply when securing the cable lugs to the DC power supplies. 13 April 2006—530-014305-01 Revision 2. Changed replacement procedures to reflect the fact that some Routing Engines might or might not have retaining screws. Updated Junos OS release recommendation for graceful switchover. 26 September 2005—530-014305-01 Revision 1. Added FPC handling and storage procedures. 05 April 2005—530-007470-01 Revision 2. Reorganized to conform to newly established standards. 01 April 2004—General updates and cleanup. 30 June 2003—Updated information and minor edits. 02 April 2002—Second edition. 03 December 2001—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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3. License Grant. Subject to paymentof the applicable fees and thelimitations andrestrictions set forth herein, Juniper grants toCustomer 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 useof the Software. Suchlimits may restrictuse to amaximum numberof seats, registered endpoints, concurrent users, sessions, calls, connections, subscribers, clusters, nodes, realms, devices, links, ports or transactions, or require the purchase of separate licenses to use particular features, functionalities, services, applications, operations, or capabilities, or provide throughput, performance, configuration, bandwidth, interface, processing, temporal, or geographical limits. In addition, such limits may restrict the use of the Software to managing certain kinds of networks or require the Software to be used only in conjunction with other specific Software. Customer’s use of the Software shall be subject to all such limitations and purchase of all applicable licenses.

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Software in any manner that extends or is broader than the uses purchased by Customer from Juniper or an authorized Juniper reseller; (i) use Embedded Software on non-Juniper equipment; (j) use Embedded Software (or make it available for use) on Juniper equipment that the Customer did not originally purchase from Juniper or an authorized Juniper reseller; (k) disclose the results of testing or benchmarking of the Software to any third party without the prior written consent of Juniper; or (l) use the Software in any manner other than as expressly provided herein.

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

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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)).

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 T320 Router Product Overview

Chapter 1 T320 System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

T320 Router Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Chapter 2 T320 Router System Architecture Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

System Architecture Description for M320, T320, T640, and T1600 Routers . . . . . 5

Routing Engine Functions for M320, T320, T640, and T1600 Routers . . . . . . . . . . 6

Packet Forwarding Engine Architecture for T320, T640, and T1600 Routers . . . . . 7

Packet Forward Engine Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Data Flow Through the T320, T640, and T1600 Router . . . . . . . . . . . . . . . . . . 7

Chapter 3 T320 Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

T320 Component Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

T320 Chassis Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

T320 Midplane Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

T320 Flexible PIC Concentrators (FPCs) Overview . . . . . . . . . . . . . . . . . . . . . . . . . 15

T320 Flexible PIC Concentrators (FPCs) Description . . . . . . . . . . . . . . . . . . . 16

T320 FPC Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

T320 FPC Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

T320 FPC Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

T320 FPC Edges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Identifying the T320 FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

T320 FPCs Supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

T320 PIC Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

T320 Switch Interface Boards (SIBs) Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

T320 Switch Interface Boards (SIBs) Description . . . . . . . . . . . . . . . . . . . . . . 23

T320 SIB LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

T320 Host Subsystem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

T320 Core Router Hardware Guide

T320 Routing Engine Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

T320 Routing Engine Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

T320 RE-600 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

T320 RE-600 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

T320 RE-1600 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

T320 RE-1600 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

T320 RE-2000 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

T320 RE-2000 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

T320 Control Boards Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

T320 T-CB Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

T320 T-CB LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

T320 SONET Clock Generators (SCGs) Overview . . . . . . . . . . . . . . . . . . . . . . . . . 33

T320 Standard SONET Clock Generator (SCG) Description . . . . . . . . . . . . . 34

T320 SCG LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

T320 Craft Interface Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

T320 Craft Interface Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

T320 Craft Interface Alarm LEDs and ACO/LT Button . . . . . . . . . . . . . . . . . . 36

T320 Craft Interface LCD and Navigation Buttons . . . . . . . . . . . . . . . . . . . . . 36

T320 Craft Interface Host Subsystem LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . 38

T320 Craft Interface SIB LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

T320 Craft Interface FPC LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

T320 Connector Interface Panel (CIP) Description . . . . . . . . . . . . . . . . . . . . 40

T320 Routing Engine Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

T320 Alarm Relay Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

T320 Power System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

T320 Power System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

T320 Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

T320 Cooling System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

T320 Cable Management System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Part 2 T320 Router Initial Installation

Chapter 4 Preparing for T320 Router Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

T320 Site Preparation Checklist Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

T320 Rack Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

T320 Clearance Requirements for Airflow and Hardware Maintenance . . . . . . . . 51

Chapter 5 Unpacking the T320 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

T320 Router Installation Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Tools and Parts Required to Unpack the T320 Router . . . . . . . . . . . . . . . . . . . . . . 54

Unpacking the T320 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Verifying the T320 Router Parts Received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Chapter 6 Installing the T320 Router Mounting Hardware . . . . . . . . . . . . . . . . . . . . . . . 59

Verifying the T320 Rack-Mounting Hardware Received . . . . . . . . . . . . . . . . . . . . 59

Before You Install the T320 Rack-Mounting Hardware . . . . . . . . . . . . . . . . . . . . . 59

Installing the T320 Mounting Hardware for a Four-Post Rack or Cabinet . . . . . . 60

Installing the T320 Mounting Hardware for an Open-Frame Rack . . . . . . . . . . . . 63

Table of Contents

Chapter 7 Installing the T320 Router Using a Mechanical Lift . . . . . . . . . . . . . . . . . . . . 67

Safety Requirements, Warnings, and Guidelines for Installing the T320

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Before You Install the T320 Router Using a Mechanical Lift . . . . . . . . . . . . . . . . . 67

Tools Required to Install the T320 Router Using a Mechanical Lift . . . . . . . . . . . . 68

Installing the T320 Router Using a Mechanical Lift . . . . . . . . . . . . . . . . . . . . . . . . 68

Attaching the T320 Router Installation Handle . . . . . . . . . . . . . . . . . . . . . . . . 70

Removing the T320 Router Installation Handle and Reinstalling the Power

Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Chapter 8 Installing the T320 Router Without a Mechanical Lift . . . . . . . . . . . . . . . . . . 73

Before You Install the T320 Router Without a Mechanical Lift . . . . . . . . . . . . . . . 73

Tools and Parts Required to Install the T320 Router Without a Mechanical

Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Removing T320 Components from the Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Removing the T320 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Removing the T320 SIBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Removing the T320 T-CBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Removing the T320 SCG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Removing the T320 Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Removing the T320 Cable Management System . . . . . . . . . . . . . . . . . . . . . . 79

Removing the T320 FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Installing the T320 Chassis in the Rack Manually . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Reinstalling T320 Components in the Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Reinstalling the T320 Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Reinstalling the T320 SCGs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Reinstalling the T320 T-CBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Reinstalling the T320 SIBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Reinstalling the T320 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Reinstalling the T320 FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Reinstalling T320 Front Fan Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Reinstalling the T320 Cable Management System . . . . . . . . . . . . . . . . . . . . . 92

Chapter 9 Connecting the T320 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Tools and Parts Required to Connect the T320 Router . . . . . . . . . . . . . . . . . . . . . 93

Overview of Connecting the T320 Router to Management and Alarm Devices . . 94

Connecting the T320 Router to a Network for Out-of-Band

Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Connecting the T320 Router to a Management Console or Auxiliary

Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Connecting the T320 Router to an External Alarm-Reporting Device . . . . . . 96

Connecting PIC Cables to the T320 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Chapter 10 Providing Power to the T320 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Tools and Parts Required to Provide Power to the T320 Router . . . . . . . . . . . . . . 99

Connecting the T320 Grounding Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Connecting DC Power to the T320 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Powering On the T320 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Powering Off the T320 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

T320 Core Router Hardware Guide

Chapter 11 Performing the Initial T320 Junos OS Configuration . . . . . . . . . . . . . . . . . . 105

Part 3 T320 Router Hardware Maintenance, Troubleshooting, and

Chapter 12 Maintaining T320 Router Hardware Components . . . . . . . . . . . . . . . . . . . . . 111

Chapter 13 Troubleshooting T320 Router Hardware Components . . . . . . . . . . . . . . . . 127

Preparing to Configure the T320 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Initially Configuring the T320 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Entering Configuration Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Configuring User Accounts and Passwords . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Configuring System Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Committing the Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Replacement Procedures

Tools and Parts Required to Maintain the T320 Hardware Components . . . . . . . 111

Routine Maintenance Procedures for the T320 Router . . . . . . . . . . . . . . . . . . . . . . 111

Maintaining T320 Cooling System Components . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Maintaining the T320 Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Maintaining the T320 Fan Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Maintaining the T320 Host Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Maintaining the T320 Routing Engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Maintaining the T320 T-CBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Maintaining the T320 SCGs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Maintaining the T320 Packet Forwarding Engine Components . . . . . . . . . . . . . . 116

Maintaining T320 FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Holding and Storing T320 FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Holding T320 FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Storing T320 FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Maintaining T320 PICs and PIC Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Maintaining the T320 SIBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Maintaining the T320 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

Overview of Troubleshooting Resources for the T320 Router . . . . . . . . . . . . . . . . 127

Troubleshooting Using the T320 Command-Line Interface . . . . . . . . . . . . . . 127

Troubleshooting Using the T320 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Troubleshooting Using the T320 Craft Interface LEDs . . . . . . . . . . . . . . 128

Troubleshooting Using the T320 Component LEDs . . . . . . . . . . . . . . . . 129

Troubleshooting Using the T320 Chassis and Interface Alarm Messages . . 129

Troubleshooting from the Juniper Networks Assistance Center . . . . . . . . . . 132

Troubleshooting the T320 Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Troubleshooting the T320 FPCs and PICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Troubleshooting the T320 FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Troubleshooting the T320 PICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Troubleshooting the T320 Power System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Table of Contents

Chapter 14 Replacing the T320 Router Hardware Components . . . . . . . . . . . . . . . . . . . 137

T320 Router FRU Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

Tools and Parts Required to Replace the T320 Hardware Components . . . . . . . 138

Replacing the T320 CIP and Routing Engine Interface Port Cables . . . . . . . . . . . 139

Removing the T320 CIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Installing the T320 CIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Replacing the T320 Connections to Routing Engine Interface Ports . . . . . . . 142

Replacing the T320 Management Ethernet Cables . . . . . . . . . . . . . . . . 143

Replacing the T320 Console or Auxiliary Cable . . . . . . . . . . . . . . . . . . . 145

Replacing the T320 Alarm Relay Wires . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Replacing the T320 Cooling System Components . . . . . . . . . . . . . . . . . . . . . . . . 148

Replacing a T320 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

Removing a T320 Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

Installing a T320 Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

Removing a T320 Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

Installing a T320 Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Replacing a T320 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Removing a Front T320 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Installing a Front T320 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Removing a Rear T320 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Installing a Rear T320 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Replacing a T320 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

Removing a T320 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

Installing a T320 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Replacing the T320 Host Subsystem Components . . . . . . . . . . . . . . . . . . . . . . . 160

Taking the T320 Host Subsystem Offline . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

Replacing a T320 T-CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

Removing a T320 T-CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

Installing a T320 T-CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Replacing a T320 PC Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Removing a T320 PC Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Installing a T320 PC Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Replacing a DIMM Module in T320 Routing Engines . . . . . . . . . . . . . . . . . . . 166

Removing a T320 DIMM Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Installing a T320 DIMM Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Replacing a T320 Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

Removing a T320 Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

Installing a T320 Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Replacing a T320 SCG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

Removing a T320 SCG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

Installing a T320 SCG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

T320 Core Router Hardware Guide

Replacing a T320 SIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

Removing a T320 SIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

Installing a T320 SIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

Replacing T320 Packet Forwarding Engine Components . . . . . . . . . . . . . . . . . . . 176

Replacing a T320 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Removing a T320 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Installing a T320 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

Replacing a T320 PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

Removing a T320 PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

Installing a T320 PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

Replacing T320 PIC Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

Removing a T320 PIC Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

Installing a T320 PIC Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

Replacing a T320 SFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

Removing a T320 SFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

Installing a T320 SFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

Replacing a T320 XENPAK Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192

Removing a T320 XENPAK Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192

Installing a T320 XENPAK Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Replacing T320 Power System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

Replacing a T320 DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

Removing a T320 DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

Installing a T320 DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

Replacing a T320 DC Power Supply Cable . . . . . . . . . . . . . . . . . . . . . . . . . . 200

Removing a T320 DC Power Supply Cable . . . . . . . . . . . . . . . . . . . . . . 200

Installing a T320 DC Power Supply Cable . . . . . . . . . . . . . . . . . . . . . . . 200

Part 4 Appendixes

Appendix A T320 Safety and Regulatory Compliance Information . . . . . . . . . . . . . . . . 205

Definition of Safety Warning Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205

T320 Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

General Safety Guidelines for M Series, MX Series, and T Series Routers . . 207 General Safety Warnings for M Series, MX Series, and T Series Routers . . . 208

Qualified Personnel Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208

Restricted Access Area Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209

Preventing Electrostatic Discharge Damage to a T320 Router . . . . . . . . . . . 210

Fire Safety Requirements for M Series, MX Series, and T Series Routers . . . . . . . 211

General Fire Safety Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

Fire Suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

Fire Suppression Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212

T320 Installation Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . 212

T320 Chassis Lifting Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

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

Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

Installation Instructions Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

Rack-Mounting Requirements and Warnings . . . . . . . . . . . . . . . . . . . . . 214

Ramp Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

T320 General Laser Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218

Table of Contents

Laser Safety Warnings for M Series, MX Series, and T Series Routers . . . . . . . . . 218

Class 1 Laser Product Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218

Class 1 LED Product Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

Laser Beam Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

Radiation from Open Port Apertures Warning . . . . . . . . . . . . . . . . . . . . . . . . 220

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

Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

Battery Handling Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

Jewelry Removal Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222

Lightning Activity Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

Operating Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224

Product Disposal Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

T320 Electrical Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . 226

In Case of an Electrical Accident . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226

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

Series, and T Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226

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

Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

Grounded Equipment Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

Grounding Requirements and Warning . . . . . . . . . . . . . . . . . . . . . . . . . . 228

Midplane Energy Hazard Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

Multiple Power Supplies Disconnection Warning . . . . . . . . . . . . . . . . . . 229

Power Disconnection Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230

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

Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

DC Power Copper Conductors Warning . . . . . . . . . . . . . . . . . . . . . . . . . . 231

DC Power Disconnection Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

DC Power Wiring Terminations Warning . . . . . . . . . . . . . . . . . . . . . . . . . 233

T320 Agency Approvals and Compliance Statements . . . . . . . . . . . . . . . . . . . . 234

T320 Agency Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234

T320 Compliance Statements for NEBS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

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

and T Series Routers (Canada) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236

T320 Compliance Statements for EMC Requirements (European

Community) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

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

and T Series Routers (Japan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238

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

and T Series Routers (United States) . . . . . . . . . . . . . . . . . . . . . . . . . . . 238

Compliance Statements for Environmental Requirements for M Series, MX

Series, and T Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238

T320 Compliance Statements for Acoustic Noise . . . . . . . . . . . . . . . . . . . . 239

Appendix B T320 Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241

T320 Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241

Appendix C T320 Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243

T320 Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243

T320 Core Router Hardware Guide

Appendix D T320 Power Guidelines, Requirements, and Specifications . . . . . . . . . . . . 245

Appendix E T320 Router Cable and Wire Guidelines and Specifications . . . . . . . . . . . . 251

Appendix F T320 Router Cable Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257

Appendix G Contacting Customer Support and Returning T320 Router Hardware . . 259

T320 Power System Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 245

T320 Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246

T320 Chassis Grounding Cable and Lug Specifications . . . . . . . . . . . . . . . . . . . . 247

T320 DC Power Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248

T320 DC Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249

Site Electrical Wiring Guidelines for M Series and T Series Routers . . . . . . . . . . 249

Distance Limitations for Signaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249

Radio Frequency Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250

Electromagnetic Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250

T320 Network Cable Specifications and Guidelines . . . . . . . . . . . . . . . . . . . . . . . 251

T320 Fiber-Optic and Network Cable Specifications . . . . . . . . . . . . . . . . . . 251

T320 Signal Loss in Multimode and Single-Mode Fiber-Optic Cable . . . . . . 251

T320 Attenuation and Dispersion in Fiber-Optic Cable . . . . . . . . . . . . . . . . 252

T320 Attenuation in SONET/SDH PICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253

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

and T Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254

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

T Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254

T320 Routing Engine Interface Cable and Wire Specifications . . . . . . . . . . . . . . 256

T320 RJ-45 Connector Pinouts for the Routing Engine ETHERNET Port . . . . . . . 257

T320 DB-9ConnectorPinouts forthe Routing EngineAUXILIARYand CONSOLE

Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258

Locating T320 Component Serial Numbers Using the CLI . . . . . . . . . . . . . . . . . 259

Locating T320 Component Serial Number Labels . . . . . . . . . . . . . . . . . . . . . . . . 260

Locating the T320 T-CB Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . 261

Locating the T320 CIP Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . 261

Locating the T320 Craft Interface Serial Number Label . . . . . . . . . . . . . . . . 262

Locating the T320 FPC Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . 262

Locating the T320 PIC Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . 263

Locating the T320 Power Supply Serial Number Label . . . . . . . . . . . . . . . . 264

Locating the T320 Routing Engine Serial Number Label . . . . . . . . . . . . . . . 265

Locating the T320 SCG Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . 265

Locating the T320 SIB Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . 266

Contacting Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266

T320 Return Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267

Tools and Parts Required to Remove Components from an M Series, MX Series,

or T Series Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268

Packing the T320 Router for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268

Packing Router Components for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269

Part 5 Index

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273

List of Figures

Part 1 T320 Router Product Overview

Chapter 2 T320 Router System Architecture Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 1: Router Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 2: Control Packet Handling for Routing and Forwarding Table Updates

for the T320 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 3: Data Flow Through the Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Chapter 3 T320 Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 4: Front View of the T320 Router Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 5: Rear View of the T320 Router Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 6: T320 Midplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 7: FPC Installed in T320 Router Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 8: FPC Online/Offline Button on the Craft Interface . . . . . . . . . . . . . . . . . . 18

Figure 9: FPC Edges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 10: Type 1 PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 11: Type 2 PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 12: Type 3 PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 13: Standard FPC1, FPC2, and FPC3 Supported by the T320 Router . . . . . . 21

Figure 14: Enhanced II FPC1, FPC2, and FPC3 Supported by the T320 Router . . . . 21

Figure 15: T320 SIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 16: T320 Routing Engine 600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Figure 17: T320 Routing Engine 1600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 18: Routing Engine 2000 (RE-2000) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 19: T320 control board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 20: T320 SCG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Figure 21: Front Panel of the T320 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 22: T320 LCD in Idle Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Figure 23: T320 LCD in Alarm Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Figure 24: CIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Figure 25: T320 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Figure 26: Airflow Through the T320 Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Figure 27: T320 Cable Management System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Part 2 T320 Router Initial Installation

Chapter 4 Preparing for T320 Router Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Figure 28: Typical Open-Frame Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Figure 29: T320 Chassis Dimensions and Clearance Requirements . . . . . . . . . . . 52

Chapter 5 Unpacking the T320 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Figure 30: Contents of the Shipping Crate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

T320 Core Router Hardware Guide

Chapter 6 Installing the T320 Router Mounting Hardware . . . . . . . . . . . . . . . . . . . . . . . 59

Chapter 7 Installing the T320 Router Using a Mechanical Lift . . . . . . . . . . . . . . . . . . . . 67

Chapter 8 Installing the T320 Router Without a Mechanical Lift . . . . . . . . . . . . . . . . . . 73

Chapter 9 Connecting the T320 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Chapter 10 Providing Power to the T320 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Figure 31: Positioning the Spacer Bar on the Rack . . . . . . . . . . . . . . . . . . . . . . . . . 62

Figure 32: Installing the Mounting Hardware for a Four-Post Rack or Cabinet . . . 63

Figure 33: Installing the Mounting Hardware for an Open-Frame Rack . . . . . . . . 65

Figure 34: Installing the T320 Router in the Rack . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Figure 35: Removing a Power Supply Before Installing the Installation

Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Figure 36: Attaching the Installation Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Figure 37: Reinstalling a Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Figure 38: Removing a Power Supply Before Installing the Router . . . . . . . . . . . . 75

Figure 39: Removing a T320 SIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Figure 40: Removing a T320 T-CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Figure 41: Removing a T320 SCG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Figure 42: Removing the Rear T320 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Figure 43: Removing a T320 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Figure 44: Attaching the Installation Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Figure 45: Installing the T320 Router in the Rack . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Figure 46: Reinstalling the Rear T320 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Figure 47: Reinstalling a T320 SCG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Figure 48: Reinstalling a T-CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Figure 49: Reinstalling a SIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Figure 50: Reinstalling a T320 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Figure 51: Reinstalling an FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Figure 52: Reinstalling a Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Figure 53: T320 Routing Engine Management Ports and Alarm Relay

Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Figure 54: Routing Engine Ethernet Cable Connector . . . . . . . . . . . . . . . . . . . . . . 95

Figure 55: Console and Auxiliary Serial Port Connector . . . . . . . . . . . . . . . . . . . . . 96

Figure 56: Attach Cable to a PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Figure 57: Connecting DC Power to the T320 Router . . . . . . . . . . . . . . . . . . . . . . 102

Part 3 T320 Router Hardware Maintenance, Troubleshooting, and

Replacement Procedures

Chapter 12 Maintaining T320 Router Hardware Components . . . . . . . . . . . . . . . . . . . . . 111

Figure 58: Do Not Grasp the Connector Edge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Figure 59: Do Not Carry an FPC with Only One Hand . . . . . . . . . . . . . . . . . . . . . . . 119

Figure 60: Do Not Rest the FPC on an Edge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Figure 61: Holding an FPC Vertically . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Figure 62: Do Not Stack FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Chapter 14 Replacing the T320 Router Hardware Components . . . . . . . . . . . . . . . . . . . 137

Figure 63: Removing the CIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

List of Figures

Figure 64: Installing a CIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

Figure 65: Routing Engine Interface Ports and Alarm Relay Contacts . . . . . . . . . 143

Figure 66: Ethernet Cable Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

Figure 67: Routing Engine Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Figure 68: Routing Engine Alarm Relay Wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

Figure 69: Removing a Front T320 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

Figure 70: Installing a Front T320 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

Figure 71: Removing a Rear T320 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Figure 72: Installing a Rear T320 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Figure 73: Removing the Front Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

Figure 74: Replacing the Front Filter Element . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

Figure 75: Installing the Front Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Figure 76: Removing the Rear Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Figure 77: Removing the Rear Air Filter Element . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Figure 78: Installing the Rear Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

Figure 79: Removing a T320 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Figure 80: Installing a Replacement T320 Craft Interface . . . . . . . . . . . . . . . . . . 160

Figure 81: Removing a T320 T-CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Figure 82: Installing a T-CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Figure 83: Removing a PC Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Figure 84: Installing a PC Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Figure 85: Installing the DIMM Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

Figure 86: Removing the T320 Routing Engine Cover . . . . . . . . . . . . . . . . . . . . . . 169

Figure 87: Removing a T320 Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Figure 88: Installing a T320 Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

Figure 89: Reinstalling the T320 Routing Engine Cover . . . . . . . . . . . . . . . . . . . . . 171

Figure 90: Removing a T320 SCG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

Figure 91: Installing a T320 SCG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

Figure 92: Removing a T320 SIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

Figure 93: Installing a T320 SIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

Figure 94: Removing a T320 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

Figure 95: Installing a T320 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

Figure 96: Connecting Fiber-Optic Cable to a T320 PIC . . . . . . . . . . . . . . . . . . . . 182

Figure 97: Removing a PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

Figure 98: Installing a PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

Figure 99: Connecting Fiber-Optic Cable to a T320 PIC . . . . . . . . . . . . . . . . . . . . 189

Figure 100: Small Form-Factor Pluggable (SFP) . . . . . . . . . . . . . . . . . . . . . . . . . 190

Figure 101: Removing a XENPAK Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Figure 102: Installing a XENPAK Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

Figure 103: Disconnecting Power Cables from the DC Power Supply . . . . . . . . . . 196

Figure 104: Removing a T320 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

Figure 105: Rear of the Power Supply Showing Midplane Connectors . . . . . . . . . 197

Figure 106: Installing a Replacement T320 Power Supply . . . . . . . . . . . . . . . . . . 199

Figure 107: Connecting Power Cables to the T320 Power Supply . . . . . . . . . . . . 201

Part 4 Appendixes

Appendix A T320 Safety and Regulatory Compliance Information . . . . . . . . . . . . . . . . 205

Figure 108: Placing a Component into an Electrostatic Bag . . . . . . . . . . . . . . . . . 211

T320 Core Router Hardware Guide

Appendix D T320 Power Guidelines, Requirements, and Specifications . . . . . . . . . . . . 245

Appendix G Contacting Customer Support and Returning T320 Router Hardware . . 259

Figure 109: DC Power and Grounding Cable Lug . . . . . . . . . . . . . . . . . . . . . . . . . 248

Figure 110: Typical DC Source Cabling to the Router . . . . . . . . . . . . . . . . . . . . . . 249

Figure 111: Serial Number ID Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

Figure 112: T-CB Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261

Figure 113: CIP Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262

Figure 114: Craft Interface Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . 262

Figure 115: Serial Number Label on FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263

Figure 116: PIC Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264

Figure 117: Power Supply Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . 264

Figure 118: Routing Engine Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . 265

Figure 119: SCG Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265

Figure 120: SIB Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266

List of Tables

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

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

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

Part 1 T320 Router Product Overview

Chapter 3 T320 Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table 3: Identifying the FPCs Supported by the T320 Router . . . . . . . . . . . . . . . . 20

Table 4: FPCs Supported by the T320 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Table 5: T320 SIB LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Table 6: RE-1600 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Table 7: Routing Engine 2000 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Table 8: T320 T-CB LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Table 9: T320 SCG LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Table 10: T320 Alarm LEDs and Alarm Cutoff/Lamp Test Button . . . . . . . . . . . . . 36

Table 11: T320 Host Subsystem LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Table 12: SIB LEDs on the Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Table 13: FPC LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Table 14: T320 Power Supply LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Part 2 T320 Router Initial Installation

Chapter 4 Preparing for T320 Router Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Table 15: T320 Site Preparation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Chapter 5 Unpacking the T320 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Table 16: T320 Router Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Table 17: T320 Accessory Box Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Chapter 6 Installing the T320 Router Mounting Hardware . . . . . . . . . . . . . . . . . . . . . . . 59

Table 18: T320 Four-Post or Cabinet Rack Mounting Hole Locations . . . . . . . . . . 60

Table 19: T320 Open-Frame Rack Mounting Hole Locations . . . . . . . . . . . . . . . . . 64

Part 3 T320 Router Hardware Maintenance, Troubleshooting, and

Replacement Procedures

Chapter 13 Troubleshooting T320 Router Hardware Components . . . . . . . . . . . . . . . . 127

Table 20: T320 Chassis Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Table 21: SONET/SDH Interface Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . 131

Chapter 14 Replacing the T320 Router Hardware Components . . . . . . . . . . . . . . . . . . . 137

Table 22: T320 Field-Replaceable Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

T320 Core Router Hardware Guide

Part 4 Appendixes

Appendix B T320 Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241

Appendix C T320 Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243

Appendix D T320 Power Guidelines, Requirements, and Specifications . . . . . . . . . . . . 245

Appendix E T320 Router Cable and Wire Guidelines and Specifications . . . . . . . . . . . . 251

Appendix F T320 Router Cable Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257

Table 23: Tools and Parts Required for Component Replacement . . . . . . . . . . . . 138

Table 24: Effect of Taking the T320 Host Subsystem Offline . . . . . . . . . . . . . . . 160

Table 25: T320 Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241

Table 26: Router Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 243

Table 27: Power System Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . 245

Table 28: Component Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246

Table 29: Grounding Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

Table 30: Power Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248

Table 31: Estimated Values for Factors Causing Link Loss . . . . . . . . . . . . . . . . . 255

Table 32: Cable and Wire Specifications for Routing Engine Management and

Alarm Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256

Table 33: RJ-45 Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257

Table 34: DB-9 Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258

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 T320 Internet Router. It explains how to prepare your site for router installation, unpack and install the hardware, power on the router, perform initial software configuration, and perform 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/.

T320 Core 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, BGP Communities Attribute

Table 2: Text and Syntax Conventions (continued)

About the Documentation

ExamplesDescriptionConvention

Italic text like this

Text like this

| (pipe symbol)

# (pound sign)

[ ] (square brackets)

Indention and braces ( { } )

; (semicolon)

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

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

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

same lineas theconfiguration statement to which it applies.

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

Identify a level in the configuration hierarchy.

Identifies a leaf statement at a configuration hierarchy level.

Configure the machine’s domain name:

[edit] root@# set system domain-name

domain-name

•

To configure a stub area, include the

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

•

The console port is 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.

T320 Core 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 productsupport is available through the Juniper Networks Technical Assistance Center (JTAC). If you are a customer with an active J-Care or JNASC support contract, or are covered under warranty, and need post-sales technical support, you can access our tools and resources online or open a case with JTAC.

•

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

http://www.juniper.net/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 verifyservice entitlement by product serialnumber,use ourSerial NumberEntitlement (SNE) Tool: https://tools.juniper.net/SerialNumberEntitlementSearch/

Opening a Case with JTAC

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

•

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

•

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

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

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

About the Documentation

T320 Core Router Hardware Guide

PART 1

T320 Router Product Overview

•

T320 System Overview on page 3

•

T320 Router System Architecture Overview on page 5

•

T320 Hardware Components on page 11

T320 Core Router Hardware Guide

CHAPTER 1

T320 System Overview

•

T320 Router Description on page 3

T320 Router Description

The T320 Core Router is a complete routing system that provides Gigabit Ethernet, SONET/SDH, and other high-speed interfacesfor large networksand networkapplications, such as those supported by Internet service providers (ISPs).

Application-specific integrated circuits (ASICs) are a definitive part of the router design; these ASICs enable the router to achieve data forwarding rates that match current fiber-optic capacity.

The router accommodates up to eight Flexible PIC Concentrators (FPCs), which can each be configured with a variety of network media types—altogether providing up to 64 Gigabit Ethernet, 64SONET/SDH OC-48/STM-16, or 16 SONET/SDHOC-192/STM-64 ports for the router.

Documentation

The router's maximum aggregate throughput is 160 Gbps, full duplex. The router can forward traffic at high-performance rates for any combination of PICs that does not exceed 20 Gbps on a single FPC3. Any combination exceeding 20 Gbps is supported, but constitutes oversubscription. For information about the FPC types, see “T320 FPCs Supported” on page 22.

The router architecture cleanly separates control operations from packet forwarding operations. This design eliminates processing and traffic bottlenecks, permitting the router to achieve high performance. Control operations in the router are performed by the host subsystem, whichruns Junos OS tohandle routingprotocols, traffic engineering, policy, policing, monitoring, and configuration management. Forwarding operations in the router are performed by the Packet Forwarding Engines, which consist of hardware, including ASICs, designed by Juniper Networks.

• T320 Chassis Description on page 12

• T320 Physical Specifications on page 241

• T320 Environmental Specifications on page 243

• T320 Power Requirements on page 246

T320 Core Router Hardware Guide

CHAPTER 2

T320 Router System Architecture Overview

•

System Architecture Description for M320, T320, T640, and T1600 Routers on page 5

•

Routing Engine Functions for M320, T320, T640, and T1600 Routers on page 6

•

Packet Forwarding Engine Architecture for T320, T640, and T1600 Routers on page 7

System Architecture Description for M320, T320, T640, and T1600 Routers

The M320 Multiservice Edge Router and T320, T640, and T1600 Core Routers have two main architectural components:

•

Routing Engine—One or more Routing Engines provide Layer 3 routing services and network management.

•

PacketForwardingEngines—Thesehigh-performance,ASIC-basedcomponents provide Layer 2 and Layer 3 packet switching, route lookups, and packet forwarding.

Documentation

The Routing Engines and the Packet Forwarding Engines perform their primary tasks independently, although theyconstantly communicate through multiple 100-Mbps links. This arrangement streamlines forwarding and routing control and runs Internet-scale backbone networks at high speeds. Figure 1 on page 5 shows the relationship between the Routing Engine and the Packet Forwarding Engines.

Figure 1: Router Architecture

Routing Engine Functions for M320, T320, T640, and T1600 Routers on page 6•

• Packet Forwarding Engine Architecture for T320, T640, and T1600 Routers on page 7

T320 Core Router Hardware Guide

Routing Engine Functions for M320, T320, T640, and T1600 Routers

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. The routing and software processes run on top of a kernel that interacts with the Packet Forwarding Engine. For more information about the processes, see the Junos OS System Basics and Services Command Reference.

The Routing Engine constructs and maintains one or more routing tables (see Figure 2 on page 6). 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 2: Control Packet Handling for Routing and Forwarding Table Updates for the T320 Router

The Routing Engine includes the functions and features:

•

Processing of routing protocol packets—The Routing Engine handles all packets that concern routing protocols, freeing thePacketForwarding Engineto 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 with a complete set ofInternet featuresand provides fullflexibility for 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 OS 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.

Chapter 2: T320 Router System Architecture Overview

•

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 and change management—Configuration files,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.

Documentation

System Architecture Description for M320, T320, T640, and T1600 Routers on page 5•

• Packet Forwarding Engine Architecture for T320, T640, and T1600 Routers on page 7

Packet Forwarding Engine Architecture for T320, T640, and T1600 Routers

•

Packet Forward Engine Components on page 7

•

Data Flow Through the T320, T640, and T1600 Router on page 7

Packet Forward Engine Components

The Packet Forwarding Engines provide the Layer 2 and Layer 3 packet switching, forwarding,and route lookup functions.The Packet Forwarding Engines are implemented in ASICs that are physically located on the FPCs and the PICs.

Each Packet Forwarding Engine consists of the following components:

•

Layer 2/Layer 3 Packet Processing ASIC, which performs Layer 2 and Layer 3 encapsulationand decapsulation, and manages the division andreassembly ofpackets within the router.

•

Queuing and Memory Interface ASICs, which manage the buffering of data cells in memory and the queueing of notifications.

•

T Series Internet Processor, which provides the route lookup function.

•

Switch Interface ASICs, which extract the route lookup key and manage the flow of data cells across the switch fabric.

•

Media-specific ASICs on the PICs that perform control functions tailored to the PIC media types.

Data Flow Through the T320, T640, and T1600 Router

To ensure the efficient movement of data, the router is designed so that ASICs on the hardware components handle the forwarding of data. Data flows through the router in the following sequence (see Figure 3 on page 8):

T320 Core Router Hardware Guide

Figure 3: Data Flow Through the Router

1. Packets arrive at an incoming PIC interface.

2. The PIC passes the packets to the FPC, where the Layer 2/Layer 3 Packet Processing

ASIC performs Layer 2 and Layer 3 parsing and divides the packets into 64-byte cells.

3. The Switch Interface ASIC extracts the route lookup key, places it in a notification and

passes the notification to the T Series Internet Processor. The Switch Interface ASIC also passes the data cells to the Queuing and Memory Interface ASICs for buffering.

4. The Queuing andMemory Interface ASICs pass thedata cells to memoryfor buffering.

5. The TSeries Internet Processorperforms theroute lookup and forwards thenotification

to the Queuing and Memory Interface ASIC.

6. The Queuingand MemoryInterfaceASIC sends the notification to the Switch Interface

ASIC facing the switch fabric, unless the destination is onthe samePacket Forwarding Engine. In this case, the notification is sent back to the Switch Interface ASIC facing the outgoing ports, and the packets are sent to the outgoing port without passing through the switch fabric (see Step 13).

7. The Switch Interface ASIC sends bandwidth requests through the switch fabric to the

destination port. The Switch Interface ASIC also issues read requests to the Queuing and Memory Interface ASIC to begin reading data cells out of memory.

8. The destination Switch Interface ASIC sends bandwidth grants through the switch

fabric to the originating Switch Interface ASIC.

Chapter 2: T320 Router System Architecture Overview

9. Upon receipt of each bandwidth grant, the originating Switch Interface ASIC sends a

cell through the switch fabric to the destination Packet Forwarding Engine.

10. The destination Switch Interface ASIC receives cells from the switch fabric. It extracts

the route lookup key from each cell, places it in a notification, and forwards the notification to the T Series Internet Processor.

11. The T Series Internet Processor performs the route lookup, and forwards the

notification to the Queuing and Memory Interface ASIC.

12. The Queuingand MemoryInterfaceASIC forwards thenotification, including next-hop

information, to the Switch Interface ASIC.

13. The Switch Interface ASIC sends read requests to the Queuing and Memory Interface

ASIC to read the data cells out of memory, and passes the cells to the Layer 2/Layer 3 Packet Processing ASIC.

14. The Layer 2/Layer 3 Packet Processing ASIC reassembles the data cells into packets,

adds Layer 2 encapsulation, and sends the packets to the outgoing PIC interface.

15. The outgoing PIC sends the packets out into the network.

Documentation

• System Architecture Description for M320, T320, T640, and T1600 Routers on page 5

• Routing Engine Functions for M320, T320, T640, and T1600 Routers on page 6

T320 Core Router Hardware Guide

CHAPTER 3

T320 Hardware Components

•

T320 Component Redundancy on page 11

•

T320 Chassis Description on page 12

•

T320 Midplane Description on page 14

•

T320 Flexible PIC Concentrators (FPCs) Overview on page 15

•

T320 PIC Description on page 22

•

T320 Switch Interface Boards (SIBs) Overview on page 23

•

T320 Host Subsystem Description on page 25

•

T320 Routing Engine Overview on page 25

•

T320 Control Boards Overview on page 32

•

T320 SONET Clock Generators (SCGs) Overview on page 33

•

T320 Craft Interface Overview on page 35

•

T320 Power System Overview on page 42

•

T320 Cooling System Description on page 44

•

T320 Cable Management System Description on page 45

T320 Component Redundancy

The T320 Core Router is designed so that no single point of failure can cause the entire system to fail. The following major hardware components are redundant:

•

Switch Interface Boards (SIBs)—The router has three SIBs. Each Type 1 FPC and Type 2 FPC has a dedicated ASIC with five high-speed links that connect to the SIBs (one link perSIB). AType3 FPChas two dedicated ASICs, andeach ASIC hasfive high-speed links that connect to the SIBs (a total of 10 links). One of the three SIBs—usually

SIB0—acts as a backup to the remaining two SIBs. In the event of a SIB failure, the

backup SIB becomes active and traffic forwarding continues without any degradation. When the failed SIB is replaced, it becomes the new backup.

•

Host subsystem—The host subsystem consists ofa Routing Enginefunctioning together with a T-CB. The router can have one or two host subsystems. If two host subsystems are installed, one functions as the master and the other functions as the backup. If the master host subsystem (or either of its components) fails, the backup can take over

T320 Core Router Hardware Guide

•

as the master. To operate, each host subsystem requires a Routing Engine installed in an adjacent slot to a T-CB.

SONET Clock Generators (SCGs)—The router has a standard configuration of one SCG, but a second can be purchased to function as backup. If one SCG fails, the other becomes the masterSCG.Mastershipof the SCGs isindependent of the host subsystem, so routing functions are not affected.

Power supplies—The router has two power supplies, which share the load evenly. If one power supply fails, the other power supply can provide full power to the router indefinitely.

Cooling system—Thecooling system has redundantcomponents, whichare controlled by the host subsystem. If one of the fans fails, the host subsystem increases the speed of the remaining fans to provide sufficient cooling for the router indefinitely.

Documentation

T320 Router Description on page 3•

• T320 System Architecture Description

• Reinstalling T320 Components in the Chassis on page 85

T320 Chassis Description

The T320 Core Router chassis is a rigid sheet metal structure that houses all the other router components (see Figure 4 on page 13 and Figure 5 on page 14). The chassis measures 25.13 in. (63.82 cm) high, 31.4 in. (79.8 cm) deep, and 17.43 in. (44.3 cm) wide. The chassis can be installed into many types of racks or cabinets. For more information, see “T320 Rack Requirements” on page 50.

The chassis includes the following features (see Figure 4 on page 13 and Figure 5 on page 14):

•

Two pairs of metal brackets, one for center-mounting and one for front-mounting or mounting in a four-post rack or cabinet.

•

Handles on each side to facilitate positioning the router in the rack. Do not use the handles to lift the router.

•

Two electrostatic discharge (ESD) points (banana plug receptacles), one front and one rear.

WARNING: Before removingor installing any components of a functioning

router, attach an ESD strap to one of the two ESD points on the chassis and attach the other end of the strap around your bare wrist. Failure to use an ESD strap could result in damage to the router and its components.

Chapter 3: T320 Hardware Components

Figure 4: Front View of the T320 Router Chassis

T320 Core Router Hardware Guide

Figure 5: Rear View of the T320 Router Chassis

For chassis serial number information , see “Locating T320 Component Serial Numbers Using the CLI” on page 259.

Documentation

Safety Requirements, Warnings, and Guidelines for Installing the T320 Router on

•

page 67

• T320 Chassis Lifting Guidelines on page 213

• T320 Chassis Grounding Cable and Lug Specifications on page 247

T320 Midplane Description

The T320 Core Router midplane is located in the center of the chassis and forms the rear of the FPC card cage (see Figure 6 on page 15). The FPCs install into the midplane from the front of the chassis, and the SIBs, Routing Engines, T-CBs, and SCGs install into the midplane from the rear ofthe chassis.The power supplies andcooling system components also connect to the midplane.

The midplane performs the following major functions:

Chapter 3: T320 Hardware Components

•

Data path—Data packets are transferred across the midplane from the Packet Forwarding Engine on the originating FPC to the SIBs, and from the SIBs across the midplane to the Packet Forwarding Engine on the destination FPC.

•

Power distribution—The router power supplies are connected to the midplane, which distributes power to all the router components.

•

Signal path—The midplane providesthe signalpath to theFPCs, SIBs,Routing Engines, T-CBs, and other system components for monitoring and control of the system.

Figure 6: T320 Midplane

For chassis serial number information , see “Locating T320 Component Serial Numbers Using the CLI” on page 259.

Documentation

T320 Router Description on page 3•

• Safety Requirements, Warnings, and Guidelines for Installing the T320 Router on

page 67

• T320 Physical Specifications on page 241

T320 Flexible PIC Concentrators (FPCs) Overview

•

T320 Flexible PIC Concentrators (FPCs) Description on page 16

•

T320 FPCs Supported on page 22

T320 Core Router Hardware Guide

T320 Flexible PIC Concentrators (FPCs) Description

•

T320 FPC Function on page 16

•

T320 FPC Slots on page 16

•

T320 FPC Components on page 17

•

T320 FPC Edges on page 18

•

Identifying the T320 FPCs on page 18

T320 FPC Function

FPCs house the PICs that connect the T320 Core Router to network media. The main function of an FPC is to connect the PICs installed in it to the other router components. The Packet Forwarding Engine receives incoming packets from the PICs installed on the FPC and forwards them through the switch planes to the appropriate destination port. In a maximum configuration with eight FPC3s installed, the Packet Forwarding Engines can forward up to 385 million packets per second (Mpps) for all packet sizes. The maximum aggregate throughput rate for the router is 160 Gbps (full duplex).

FPCs are hot-removable and hot-insertable. When you remove or install an FPC, packet forwarding is not interrupted. When you install an FPC into a functioning router, the Routing Engine downloads the FPC software, the FPC runs its diagnostics, and the PICs housed on the FPC are enabled. Forwarding continues uninterrupted during this process.

T320 FPC Slots

Up to eight Flexible PIC Concentrators (FPCs) install vertically in the front of the T320 Core router (see Figure 7 on page 17). The FPC slots are numbered left to right from FPC0 to FPC7. Each FPC has two connectors into which a PIC can be installed, allowing up to two PICs per FPC. An FPC can be installed into any FPC slot on the router, regardless of which PICs it contains. If a slot is not occupied by an FPC, an FPC blank panel must be installed to shield the empty slot and to allow cooling air to circulate properly through the router.

Figure 7: FPC Installed in T320 Router Chassis

Chapter 3: T320 Hardware Components

T320 FPC Components

Each FPC consists of the following components:

•

FPC card carrier.

•

One Packet Forwarding Engine—Each Packet Forwarding Engine consists of Layer 2/Layer 3 PacketProcessing ASICs, Switch Interface ASICs, T Series Internet Processor ASICs, and a Memory Mezzanine Board (MMB)which includesthe Queuingand Memory Interface ASICs.

•

ProcessorMezzanine Board(PMB), which includes a 300-MHz CPU,system controller, 256 MB of SDRAM, and two Fast Ethernet interfaces.

•

Each FPC contains data memorythat ismanaged by the Queuing and Memory Interface ASICs.

•

Two LEDs, located on the craft interface above the FPC, that display the status of the FPC. For more information on the FPC LEDs, see “T320 Craft Interface FPC LEDs” on page 39.

•

FPC online/offline button, located on the craft interface above the FPC (see Figure 8 on page 18.

T320 Core Router Hardware Guide

Figure 8: FPC Online/Offline Button on the Craft Interface

T320 FPC Edges

Regardless of whetheryou are holding anFPC vertically or horizontally, this documentation uses the same terms for all four edges of the FPC (see Figure 9 on page 18):

•

Faceplate—Edge of the FPC that has slots into which you insert the PICs

•

Connectoredge—Edge opposite the faceplate;this edgehas the connectorsthat attach to the midplane

•

Top edge—Edge at the top of the FPC when it is vertical

•

Bottom edge—Edge at the bottom of the FPC when it is vertical

Figure 9: FPC Edges

Identifying the T320 FPCs

Enhanced FPCs and Enhanced II FPCs are labeled. Check the label on the faceplate to identify the FPC. However, standard FPCs are not labeled. To determine the type of standard FPC, check the location of the installed PIC's online/offline button and how the PIC is secured to the FPC (Table 3 on page 20).

Chapter 3: T320 Hardware Components

Type 1 and Type 2 PICs installed in a standard FPC look similar, because both have two captive screws to secure the PIC to the FPC. Therefore, you must check the location of the PIC online/offline button.

•

The PIC online/offline buttons are located on the Type 1 FPC abovethe PICs(see Figure 13 on page 21). Type 1 PICs do not have an online/offline button on the PIC faceplate (Figure 10 on page 19).

•

The PIC online/offline buttons are located directly on the Type 2 PIC faceplates (see Figure 11 on page 19), rather than on the Type 2 FPC faceplate.

Figure 11: Type 2 PICFigure 10: Type 1 PIC

Type 2 and Type 3 FPCs look similar, because both have the PIC online/offline buttons directly on the PIC faceplates. Therefore, you can distinguish between a Type 2 and Type 3 FPC by checking whether the installed PICs have a plastic ejector handle (Type 3) (see Figure 12 on page 20), or a captive screw (Type 2) (see Figure 11 on page 19), at the top of the PIC faceplate.

g002378

T320 Core Router Hardware Guide

Figure 12: Type 3 PIC

Table 3: Identifying the FPCs Supported by the T320 Router

Location of PIC Offline ButtonLabelon theFPC FaceplateFPC

E FPC1Enhanced FPC1 (EOL)

E-II FPC1Enhanced II FPC1

E FPC2Enhanced FPC2 (EOL)

E-II FPC2Enhanced II FPC2

PIC faceplateNoneFPC3

E FPC3Enhanced FPC3 (EOL)

E-II FPC3Enhanced II FPC3

Figure 13 on page 21 shows the standard FPCs supported by the T320 router. The enhanced FPCs look similar to the standard FPCs.

Method of Securingthe PIC to the FPC

Two captive screwsFPC faceplate above thePICsNoneFPC1

Two captive screwsPIC faceplateNoneFPC2

Plastic ejector handle at the top of the PIC faceplate

Captive screw at the bottom of the PIC faceplate

FPC2

FPC3

PIC0

PIC1

ONLINE/ OFFLINE

FPC1

g002274

Chapter 3: T320 Hardware Components

Figure 13: Standard FPC1, FPC2, and FPC3 Supported by the T320 Router

Figure 14 on page 21 shows the Enhanced II FPCs supported by the T320 router.

Figure 14: Enhanced II FPC1, FPC2, and FPC3 Supported by the T320 Router

Documentation

T320 FPCs Supported on page 22•

• T320 Router FRU Overview on page 137

• Maintaining T320 FPCs on page 116

• Troubleshooting the T320 FPCs on page 133

T320 Core Router Hardware Guide

• Replacing a T320 FPC on page 177

T320 FPCs Supported

T320 routers support the Flexible PIC Concentrators (FPCs) listed in Table 4 on page 22.

Table 4: FPCs Supported by the T320 Router

FPC Type

Documentation

T320 Flexible PIC Concentrators (FPCs) Description on page 16•

• T320 PICs Supported

Maximum Number of PICsFPC Model NumberFPC Name

Maximum Throughput (Full-Duplex)

First Junos OS Release Supported

5.52 Gbps2T320-FPC1FPC11

6.32 Gbps2T320-FPC1-EEnhanced FPC1 (EOL)1

7.42 Gbps2T320-FPC1-E2Enhanced II FPC11

5.48 Gbps2T320-FPC2FPC22

6.38 Gbps2T320-FPC2-EEnhanced FPC2 (EOL)2

7.48 Gbps2T320-FPC2-E2Enhanced II FPC22

5.420 Gbps2T320-FPC3FPC33

6.320 Gbps2T320-FPC3-EEnhanced FPC3 (EOL)3

7.420 Gbps2T320-FPC3-E2Enhanced II FPC33

• T320 PIC/FPC Compatibility

T320 PIC Description

PICs provide the physical connection to various network media types,receiving incoming packets from the network and transmitting outgoing packets to the network. During this process, each PIC performs framing and line-speed signaling for its media type. Before transmitting outgoing data packets, the PICs encapsulate the packets received from the FPCs. Each PIC is equipped with an ASIC that performs control functions specific to the media type of that PIC.

PICs are hot-removable and hot-insertable. You can install up to two or four PICs into the slots in each FPC. PICs used in a Type 1 FPC or Type 2 FPC have captive screws at their upper and lower corners. Type 3 PICs have an upper ejector handle and a lower captive screw.

Chapter 3: T320 Hardware Components

The router supportsvarious PICs,including ATM, Channelized, GigabitEthernet, IPServices, and SONET/SDH interfaces.

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.

Documentation

Maintaining T320 PICs and PIC Cables on page 121•

• Troubleshooting the T320 PICs on page 134

• Replacing a T320 PIC on page 182

T320 Switch Interface Boards (SIBs) Overview

•

T320 Switch Interface Boards (SIBs) Description on page 23

•

T320 SIB LEDs on page 24

T320 Switch Interface Boards (SIBs) Description

The Switch Interface Boards (SIBs) provide the switching function to the destination FPC (see Figure 15 on page 24). The SIBs create the switch fabric for the router, providing up to a total of 385 million packets per second (Mpps) of forwarding.

Three SIBs are installed inthe router.The SIBsare locatedat thecenter rear of the chassis in the slots labeled SIB0 through SIB2 (top to bottom).

Each Type 1 FPC and Type 2 FPC has one dedicated ASIC with five high-speed links that connect to the SIBs (one link per SIB). SIB0 acts as a backup to SIB1 and SIB2.

•

Two high-speed links connect to SIB1 and SIB2.

•

One high-speed link connects to SIB0.

A Type 3 FPC has two dedicated ASICs, and each ASIC has five high-speed links that connect to the SIBs. One of the three SIBs—usually SIB0—acts as a backup to the remaining two SIBs. In the event of a SIB failure, the backup SIB becomes active and traffic forwarding continues without any degradation. When the failed SIB is replaced, it becomes the new backup.

SIBs are hot-insertable and hot-removable.

T320 Core Router Hardware Guide

Figure 15: T320 SIB

Each SIB consists of the following components:

•

Switch Fabric ASICs.

High-speed links (HSLs) to each FPC.

Three LEDs located on the SIB faceplate that display the status of the SIB.“T320 SIB LEDs” on page 24 describes the functions of the SIB LEDs. If all three LEDs are off, the SIB is not receiving power. The OK and FAIL LEDs are replicated on the craft interface.

Documentation

T320 SIB LEDs

•

SIB online/offline button, located on the SIB faceplate.

T320 SIB LEDs on page 24•

• Maintaining the T320 SIBs on page 123

• Replacing a T320 SIB on page 174

Table 5 on page 24 describes the functions of theT320 SIB LEDs. If all three LEDs are off, the SIB is not receiving power. The craft interface has three additional LEDs that show the status of each SIB.

Table 5: T320 SIB LEDs

DescriptionStateColorLabel

SIB is in active mode.On steadilyGreenACTIVE

SIB is functioning normally.On steadilyGreenOK

SIB is starting up.Blinking

SIB has failed.On steadilyYellowFAIL

Documentation

T320 Switch Interface Boards (SIBs) Description on page 23•

• Maintaining the T320 SIBs on page 123

• Replacing a T320 SIB on page 174

T320 Host Subsystem Description

The host subsystem provides the routing and system management functions of the router. You can install one or two host subsystems on the router. To operate, each host subsystem functions as a unit; the Routing Engine requires the corresponding T-CB, and vice versa.

NOTE: We recommend you install two host subsystems for redundant

protection.If you install only one host subsystem, we recommend you install it in slot RE0.

Each host subsystem has three LEDs that display its status. The host subsystem LEDs are located on the upper right of the craft interface. For more information about the host subsystem LEDs, see “T320 Craft Interface Host Subsystem LEDs” on page 38.

Chapter 3: T320 Hardware Components

The host subsystem consists of the following components:

•

One or two Routing Engines

•

One or two control boards

Documentation

Maintaining the T320 Host Subsystem on page 113•

• Replacing the T320 Host Subsystem Components on page 160

• Taking the T320 Host Subsystem Offline on page 160

T320 Routing Engine Overview

•

T320 Routing Engine Description on page 25

•

T320 RE-600 Description on page 26

•

T320 RE-600 LEDs on page 28

•

T320 RE-1600 Description on page 28

•

T320 RE-1600 LEDs on page 29

•

T320 RE-2000 Description on page 30

•

T320 RE-2000 LEDs on page 31

T320 Routing Engine Description

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

T320 Core Router Hardware Guide

You can install one or two Routing Engines in the router. The Routing Engines install into the upper rear of the chassis in the slots labeled RE0 and RE1. If two Routing Engines are installed, one functions as the master and the other acts as the backup. If the master Routing Engine fails or is removed,and the backup is configured appropriately, the backup takes over as the master.

If the host system is redundant, the backup Routing Engine is hot-removable and hot-insertable, but the master Routing Engine is hot-pluggable. A Routing Engine that is not redundant is hot-pluggable. Each Routing Engine requires a T-CB to be installed in the adjacent slot. RE0 installs below CB0, and RE1 installs above CB1. A Routing Engine does not power up without a T-CB present in the adjacent slot.

NOTE: The LEDs that report host module status (including Routing Engine

status) are on the craft interface rather than the Routing Engine faceplate.

NOTE: For specific information about Routing Engine components (for example, the amount of DRAM), issue the show chassis routing-engine command.

Documentation

T320 Routing Engine Functions•

• Maintaining the T320 Routing Engines on page 114

• Replacing a T320 Routing Engine on page 168

T320 RE-600 Description

The RE-600 Routing Engine boots from the storage media in this order: the PC Card (if present), then the CompactFlash card (if present), then the hard disk. The disk from which the router bootsis calledthe primary boot device, and the other diskis the alternate boot device.

NOTE: If two Routing Engines are installed, they must both be the same

hardware model.

NOTE: If the router boots froman alternateboot device,a yellow alarmlights the LED on the router’s craft interface.

Chapter 3: T320 Hardware Components

Figure 16: T320 Routing Engine 600

The Routing Engine 600 (shown in Figure 16 on page 27) consists of the following components:

•

CPU—Runs Junos OS to maintain the router's routing tables and routing protocols.

•

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

•

CompactFlash card—Providesprimary storagefor software images, configuration files, and microcode. The driveis afixed CompactFlash card andis inaccessible from outside the router.

•

Hard disk—Provides secondary storage for log files, memory dumps, and rebooting the system if the CompactFlash card fails.

•

PC card slot labeled PC CARD—Accept a removable PC card, which stores software images for system upgrades. The PC card slot accepts a Type I PC Card, as defined in the PC Card Standard published by the Personal Computer Memory Card International Association (PCMCIA). The router is shipped with a PC Card that contains Junos OS. The PC Card can be used to copy Junos OS from the PC Card onto the Routing Engine. You can also copy Junos OS from the Routing Engine onto a PC Card, for example, to create a backup copy of upgrade software that you have obtained from Juniper Networks. Instructions for copying software to a PC Card are available at the Juniper NetworksSupport Web site (http://www.juniper.net/support/); after logging in, navigate to the Customer Support Center, then to the download page for Junos OS.

NOTE: The software on a PC Card is loaded only onto the Routing Engine

into which the PC Card is inserted. It is not automatically copied to the other Routing Engine.

•

LED—Indicatesdisk activityfor theinternal IDE interface. It does not necessarilyindicate routing-related activity.

•

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 Connector Interface Panel (CIP).

T320 Core Router Hardware Guide

•

Each Routing Engine has one 10/100-Mbps Ethernet port for connecting to a management network, and two asynchronous serial ports—one for connecting to a console and one for connecting to a modem or other auxiliary device.

EEPROM—Stores the serial number of the Routing Engine.

Reset button—Reboots the Routing Engine when pressed.

Documentation

T320 Routing Engine Functions•

• Maintaining the T320 Routing Engines on page 114

• Replacing a T320 Routing Engine on page 168

T320 RE-600 LEDs

The HD LED indicates activity on the hard drive. It does not necessarily indicate routing-related activity.

Documentation

T320 Routing Engine Functions•

• Maintaining the T320 Routing Engines on page 114

• Replacing a T320 Routing Engine on page 168

T320 RE-1600 Description

Figure 17: T320 Routing Engine 1600

NOTE: The LEDs that report host module status (including Routing Engine status) are on the craft interface rather than the Routing Engine faceplate.

The Routing Engine 1600 (shown in Figure 17 on page 28) consists of the following components:

•

CPU—Runs Junos OS to maintain the router's routing tables and routing protocols.

•

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

Chapter 3: T320 Hardware Components

•

EEPROM—Stores the serial number of the Routing Engine.

•

LED—Indicatesdisk activityfor theinternal IDE interface. It does not necessarilyindicate routing-related activity.

•

Reset button—Reboots the Routing Engine when pressed.

•

CompactFlash card—Providesprimary storagefor software images, configuration files, and microcode. The driveis afixed CompactFlash card andis inaccessible from outside the router.

•

Hard disk—Provides secondary storage for log files, memory dumps, and rebooting the system if the CompactFlash card fails.

Documentation

•

PC card slots—Accept a removable PC card, which stores software images for system upgrades.

The PC cardslots accept aTypeI PCCard,as definedin thePC Card Standard published by the Personal Computer Memory Card International Association (PCMCIA). The router is shipped with a PC Card that contains Junos OS. The PC Card can be used to copy Junos OS from the PC Card onto the Routing Engine. You can also copy Junos OS from the Routing Engine onto a PC Card, for example, to create a backup copy of upgrade software that you have obtained from Juniper Networks. Instructions for copying software to a PC Card are available at the Juniper Networks Support Web site (http://www.juniper.net/support/); after logging in, navigate to the Customer Support Center, then to the download page for Junos OS.

The disk from which the router boots is called the primary boot device, and the other disk is the alternate boot device.The RE-1600 Routing Engine boots from the storage media in this order: the PC Card in SLOT 0 (if present), then the PC Card in SLOT 1 (if present), then the CompactFlash card (if present), then the hard disk.

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

the LED on the router’s craft interface.

T320 Routing Engine Functions•

• Maintaining the T320 Routing Engines on page 114

T320 RE-1600 LEDs

• Replacing a T320 Routing Engine on page 168

Table 6 on page 30 describes the functions of these LEDs.

T320 Core Router Hardware Guide

Table 6: RE-1600 LEDs

DescriptionStateColorLabel

Slot LEDs 0 and 1

Documentation

T320 Routing Engine Functions•

• Maintaining the T320 Routing Engines on page 114

• Replacing a T320 Routing Engine on page 168

T320 RE-2000 Description

Figure 18: Routing Engine 2000 (RE-2000)

YellowHD

Green alternately

blinking

BlinkingRed and

On steadilyGreen

Indicates activity on the hard drive.On steadily or

Indicates that the Routing Engine is booting and the firmware is checking if a PC card is installed.

Indicates that the RoutingEngine booted from the PC Card.

Each RE-2000 (shown in Figure 18 on page 30) consists of the following components:

•

CPU—Runs Junos OS to maintain the router's routing tables and routing protocols.

•

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

•

EEPROM—Stores the serial number of the Routing Engine.

•

Interfaces for management access—Provide information about Routing Engine status to devices (console, laptop, or terminal server) connected to the Routing Engine ports located on the CIP.

•

CompactFlash card—Providesprimary storagefor software images, configuration files, and microcode. The fixed CompactFlash card is inaccessible from outside the router.

•

Hard disk—Provides secondary storage for log files, memory dumps, and rebooting the system if the CompactFlash card fails.

Chapter 3: T320 Hardware Components

The disk from which the router boots is called the primary boot device, and the other disk is the alternate boot device. The RE-2000 Routing Engine boots from the storage media in this order: the USB device, then the CompactFlash card (ifpresent), then the hard disk, then the LAN.

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

the LED on the router’s craft interface.

The faceplate of the RE-2000 contains the following:

•

USB port—Provides a removable media interface through which you can install the Junos OS manually. Junos OS supports USB version 1.0.

•

Reset button—Reboots the Routing Engine when pressed.

•

Offline button—Takes the Routing Engine offline when pressed.

•

Extractor clips—Control the locking system that secures the Routing Engine.

•

LEDs—“T320 RE-2000 LEDs” on page 31 describes the functions of these LEDs.

Documentation

T320 RE-2000 LEDs

T320 Routing Engine Functions•

• Maintaining the T320 Routing Engines on page 114

• Replacing a T320 Routing Engine on page 168

Table 7 on page 31 describes the functions of the LEDs on the faceplate of the Routing Engine.

NOTE: The LEDs on the Routing Engine do not necessarily indicate

routing-related activity.

Table 7: Routing Engine 2000 LEDs

DescriptionStateColorLabel

Indicates disk activity for the hard disk drive.On steadilyBlueHDD

Routing Engine is functioning normally.On steadilyGreenONLINE

Routing Engine is transitioning online.Blinking

Documentation

Routing Engine has failed.On steadilyRed

T320 Routing Engine Functions•

• Maintaining the T320 Routing Engines on page 114

T320 Core Router Hardware Guide

• Replacing a T320 Routing Engine on page 168

T320 Control Boards Overview

•

T320 T-CB Description on page 32

•

T320 T-CB LEDs on page 33

T320 T-CB Description

This chassis supports up to two control boards. The Routing Engine requires an adjacent control board to provide control and monitoring functions for the router (see Figure 19 on page 33). These functionsinclude determining Routing Engine mastership; controlling power and reset for the other router components; monitoring and controlling fan speed; and monitoring system status.

You can install upto two control boards inthe router.Control boards installinto theupper rear of the chassis in the slots labeled CB0 and CB1 (referred to as CB-0 and CB-1, top to bottom). If two control boards are installed, one functions as the master and the other as its backup. If the master fails or is removed, the backup restarts and becomes the master.

Each control board requires a Routing Engine to be installed in the adjacent slot. CB0 installs above RE0, and CB1 installs belowRE1. Controlboards can notfunction if a Routing Engine is not present in the adjacent slot.

If the host system is redundant, the backup control board is hot-removable and hot-insertable, but the master control board is hot-pluggable. A control board that is not redundant is hot-pluggable.

Each consists of the following components:

•

100-MB Ethernet switch for intermodule communication.

•

PCI bus to the Routing Engines.

•

Processor subsystem (SPMB).

•

Three LEDs, located on the control board faceplate, indicate its status.“T320 T-CB LEDs” on page 33 describes the functions of the control board LEDs.

•

The control board online/offline button, located on the its faceplate. This button is not functional.

•

Two configuration switches, located on the T-CB faceplate. On the T320 router, the M/S and CHASSIS ID switches must always be set to S and O.

•

Two RJ-45 ports labeled AUX and CIP on the T-CB faceplate. These ports are not used in a T320 router.

Figure 19: T320 control board

Chapter 3: T320 Hardware Components

Documentation

T320 T-CB LEDs

Documentation

T320 Chassis Description on page 12•

• Maintaining the T320 T-CBs on page 115

• Replacing a T320 T-CB on page 162

Table 8 on page 33 describes the functions of the T-CB LEDs.

Table 8: T320 T-CB LEDs

DescriptionStateColorLabel

T-CB is functioning as the master.On steadilyBlueMASTER

T-CB has failed.On steadilyYellowFAIL

T-CB is online and is functioning normally.On steadilyGreenOK

T-CB is powering up, but not online.Blinking

T320 Chassis Description on page 12•

• Maintaining the T320 T-CBs on page 115

• Replacing a T320 T-CB on page 162

T320 SONET Clock Generators (SCGs) Overview

•

T320 Standard SONET Clock Generator (SCG) Description on page 34

•

T320 SCG LEDs on page 34

T320 Core Router Hardware Guide

T320 Standard SONET Clock Generator (SCG) Description

The SONET Clock Generators (SCGs) provide 19.44-MHz Stratum 3 clock signal for the SONET/SDH interfaces on the router (see Figure 20 on page 34).

One SCG is shipped as part of the standard router configuration, but up to two SCGs can be installed to provide redundancy. SCGs are installed into the upper rear of the chassis in the slots labeled SCG0 and SCG1.

The SCGs are hot-pluggable.

Each standard SCG consists of the following components:

•

19.44-MHz Stratum 3 clock.

•

Field-programmable gate array (FPGA) that performs multiplexing of clock sources.

•

Three LEDs, located on the SCG faceplate, that display the status of the SCG.“T320 SCG LEDs” on page 34 describes the functions of the SCG LEDs.

•

SCG online/offline button, located on the SCG faceplate.

Documentation

T320 SCG LEDs

•

Two external clock inputs.

NOTE: The external clock inputs on the standard SCG are not supported.

Figure 20: T320 SCG

Maintaining the T320 SCGs on page 115•

• Replacing a T320 SCG on page 171

• Locating the T320 SCG Serial Number Label on page 265

Table 9 on page 34 describes the functions of the SCG LEDs.

Table 9: T320 SCG LEDs

DescriptionStateColorLabel

SCG is online and is functioning normally.On steadilyGreenOK

Table 9: T320 SCG LEDs (continued)

DescriptionStateColorLabel

SCG has failed.On steadilyYellowFAIL

SCG is functioning as master.On steadilyBlueMASTER

Chapter 3: T320 Hardware Components

Documentation

Maintaining the T320 SCGs on page 115•

• Replacing a T320 SCG on page 171

• Locating the T320 SCG Serial Number Label on page 265

T320 Craft Interface Overview

•

T320 Craft Interface Description on page 35

•

T320 Craft Interface Alarm LEDs and ACO/LT Button on page 36

•

T320 Craft Interface LCD and Navigation Buttons on page 36

•

T320 Craft Interface Host Subsystem LEDs on page 38

•

T320 Craft Interface SIB LEDs on page 38

•

T320 Craft Interface FPC LEDs on page 39

•

T320 Connector Interface Panel (CIP) Description on page 40

•

T320 Routing Engine Ports on page 41

•

T320 Alarm Relay Contacts on page 42

T320 Craft Interface Description

The craft interface allows you to view status and troubleshooting information at a glance and to perform many system control functions. It is hot-insertable and hot-removable. The craft interface is located on the front of the router above the FPCs and contains:

Figure 21: Front Panel of the T320 Craft Interface

Documentation

T320 Chassis Description on page 12•

• Troubleshooting Using the T320 Craft Interface LEDs on page 128

• Replacing a T320 Craft Interface on page 158

T320 Core Router Hardware Guide

T320 Craft Interface Alarm LEDs and ACO/LT Button

Two large alarm LEDs are located at the upper left of the craft interface (see Figure 21 on page 35). 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.

A condition that causes an LED to light also activates the corresponding alarm relay contact on the connector interface panel (CIP), as described in “T320 Alarm Relay Contacts” on page 42. The LCD on the craft interface reports the cause of the alarm, as described in “T320 Craft Interface LCD and Navigation Buttons” on page 36.

To deactivate red and yellow alarms, press the button labeled ACO/LT (for “alarm cutoff/lamp test”), which is located to the right of the alarm LEDs. Deactivating analarm turns off both LEDs and deactivates the device attached to the corresponding alarm relay contact on the CIP. However, the LCD continues to report the alarm message until you clear the condition that caused the alarm.

Table 10 on page 36 describes the alarm LEDs and alarm cutoff button in more detail.

Table 10: T320 Alarm LEDs and Alarm Cutoff/Lamp Test Button

On steadilyRed

On steadilyYellow

——

Documentation

T320 Chassis Description on page 12•

• Troubleshooting Using the T320 Craft Interface LEDs on page 128

• Replacing a T320 Craft Interface on page 158

T320 Craft Interface LCD and Navigation Buttons

A four-line LCD is located in the craft interface, along with six navigation buttons. The LCD operates in two modes:

DescriptionStateColorShape

Critical alarm LED—Indicates a criticalcondition that can cause the router to stop functioning. Possible causes include component removal, failure, or overheating.

Warningalarm LED—Indicatesa seriousbut nonfatal error condition, such as a maintenance alert or a significant increase in component temperature.

Alarm cutoff/lamp test button—Deactivates red and yellowalarms. Causesall LEDs on the craft interface to light (for testing) when pressed and held.

•

LED Idle Mode

•

LED Alarm Mode

Chapter 3: T320 Hardware Components

During normal operation, the LCD operates in idle mode and reports current status information, as shown in Figure 22 on page 37.

Figure 22: T320 LCD in Idle Mode

The lines in the display report the following information:

•

First line—Router name.

•

Second line—Length of time the router has been running, reported in the following form:

Up days + hours:minutes

•

Third and fourth lines—Status messages, which rotate at 2-second intervals. Some conditions, such as removal or insertion of a system component, can interrupt the messages.

To add a message that alternates every 2 seconds with the default status messages, use the set chassis display message command. For more information, see the Junos OS System Basics and Services Command Reference.

When a red or yellow alarm occurs, the LCD switches to alarm mode and reports about the alarm condition, as shown in Figure 23 on page 37.

Figure 23: T320 LCD in Alarm Mode

The lines in the display report the following information:

•

First line—Router name.

•

Second line—Number of active alarms.

•

Third and fourth lines—Individual alarm messages, with the most severe condition shown first. The prefix oneach line indicates whether the alarm isa red(R) or yellow (Y) alarm.

For a list of alarm messages that can appear on the LCD, see “Troubleshooting Using the T320 Chassis and Interface Alarm Messages” on page 129.

Documentation

T320 Craft Interface Description on page 35•

• T320 Craft Interface Alarm LEDs and ACO/LT Button on page 36

T320 Core Router Hardware Guide

• T320 Craft Interface Host Subsystem LEDs on page 38

T320 Craft Interface Host Subsystem LEDs

Each host subsystem has three LEDs, located on the upper right of the craft interface, that indicate its status. The LEDs labeled HOST0 show the status of the Routing Engine in slot RE0 and the T-CB in slot CB0. The LEDs labeled HOST1 show the status of the Routing Engine in slot RE1 and the T-CB in slot 1. Table 11 on page 38 describes the functions of the host subsystem LEDs.

Table 11: T320 Host Subsystem LEDs

DescriptionStateColorLabel

Host is offline.On steadilyRedFAIL

Host is online and is functioning normally.On steadilyGreenOK

Host is functioning as the master.On steadilyGreenMASTER

Documentation

T320 Chassis Description on page 12•

• Troubleshooting Using the T320 Craft Interface LEDs on page 128

• Replacing a T320 Craft Interface on page 158

T320 Craft Interface SIB LEDs

Each SIBhas two LEDson the craft interfacethat indicate its status. The SIB LEDs, labeled

SIB0 through SIB4, are located on the upper right of the craft interface. The ACTIVE LED

is not replicated on the craft interface. Table 12 on page 38 describes the functions of the SIB LEDs.

Table 12: SIB LEDs on the Craft Interface

Documentation

T320 Chassis Description on page 12•

• Troubleshooting Using the T320 Craft Interface LEDs on page 128

• Replacing a T320 Craft Interface on page 158

DescriptionStateColorLabel

SIB has failed.On steadilyRedFAIL

SIB is functioning normally.On steadilyGreenOK

T320 Craft Interface FPC LEDs

Each FPC slot has two LEDs that indicate its status.The FPC LEDs, labeled FPC0 through

FPC7, are located along the bottom of the craft interface. Table 13 on page 39 describes

the functions of the FPC LEDs.

Table 13: FPC LEDs

Chapter 3: T320 Hardware Components

DescriptionStateColorLabel

FPC has failed.On steadilyRedFAIL

FPC is functioning normally.On steadilyGreenOK

FPC is starting up.Blinking

T320 Core Router Hardware Guide

Documentation

T320 Chassis Description on page 12•

• Troubleshooting Using the T320 Craft Interface LEDs on page 128

• Replacing a T320 Craft Interface on page 158

T320 Connector Interface Panel (CIP) Description

The Connector Interface Panel (CIP) consists of Ethernet, console, and auxiliary connectors for the Routing Engines and alarm relay contacts (see Figure 24 on page 41). The front electrostatic discharge point is located near the bottom of the CIP. The CIP is located at the left side of the FPC card cage.

The CIP is hot-pluggable.

Figure 24: CIP

Chapter 3: T320 Hardware Components

Documentation

T320 Chassis Description on page 12•

• Replacing the T320 CIP and Routing Engine Interface Port Cables on page 139

• Locating the T320 CIP Serial Number Label on page 261

T320 Routing Engine Ports

The CIP has two sets of ports that you use to connect the Routing Engines to external management devices. Fromthese management devices, youcan use theCLI toconfigure the router.

T320 Core Router Hardware Guide

The upper set of ports, labeled HOST 0, connects to the Routing Engine in slot RE0; and the lower set, labeled HOST 1, connectsto theRouting Enginein slotRE1. Eachset includes the following ports:

•

ETHERNET—Connects the Routing Engine through an Ethernet connection to 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.

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

(EIA-232) serial cable.

AUXILIARY—Connects theRouting Engine to a laptop,modem, or other auxiliary device

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

Documentation

T320 Connector Interface Panel (CIP) Description on page 40•

• Replacing the T320 Connections to Routing Engine Interface Ports on page 142

• T320 DB-9 Connector Pinouts for the Routing Engine AUXILIARY and CONSOLE Ports

on page 258

• T320 RJ-45 Connector Pinouts for the Routing Engine ETHERNET Port on page 257

T320 Alarm Relay Contacts

The CIPhas two alarm relay contacts for connecting the router to external alarmdevices. Whenever a system condition triggers eitherthe red oryellowalarm onthe craft interface, the alarm relay contacts are also activated. The alarm relay contacts are located below the Routing Engine ports. The terminal blocks that plug into the alarm relay contacts are supplied with the router. They accept wire of any gauge between 28-AWG and 14-AWG (0.08 and 2.08 mm2), which is not provided. Use the gauge of wire appropriate for the external device you are connecting.

Documentation

T320 Connector Interface Panel (CIP) Description on page 40•

• T320 Routing Engine Ports on page 41

• Replacing the T320 Alarm Relay Wires on page 146

• T320 Routing Engine Interface Cable and Wire Specifications on page 256

T320 Power System Overview

•

T320 Power System Description on page 42

•

T320 Power Supply LEDs on page 43

T320 Power System Description

The T320 Core Router supports DC power only. The routeris equippedwith two redundant, load-sharing DC power supplies (see Figure 25 on page 43), located at the lower rear of

Chapter 3: T320 Hardware Components

the chassis in slots PEM0 and PEM1 (top to bottom). Each power supply has one input, which has its own circuit breaker, and which requires a dedicated DC power source. The power supplies connect to the midplane, which distributes the different output voltages produced by the power supplies to the router components, depending on their voltage requirements.

When the router is operating normally and both power supplies are switched on, load-sharing between them occurs automatically. When one power supply fails or is turned off, the other power supply immediately assumes the entire electrical load for the system. A single power supply can provide full power for as long as the router is operational.

Power supplies are hot-removable and hot-insertable. Each power supply is cooled by its own internal cooling system.

Figure 25: T320 Power Supply

For power supply and power system electrical specifications, see “T320 Power System Electrical Specifications” on page 245.

Documentation

Powering On the T320 Router on page 102•

• Maintaining the T320 Power Supplies on page 124

T320 Power Supply LEDs

One LED on each power supply faceplate indicated the status of the power supply. In addition, a power supply failure triggers the red alarm LED on the craft interface. Table 14 on page 43 describes the functions of the power supply LEDs.

Table 14: T320 Power Supply LED

Blinking

DescriptionStateColorLED

No power applied to power supply.OffBlueDC OK

•

Power supply LED blinks for five seconds after initial power on.

•

Power supply is installed, but not powered on, and is receiving bias power from a powered on power supply.

•

Input voltage is invalid.

T320 Core Router Hardware Guide

Table 14: T320 Power Supply LED (continued)

DescriptionStateColorLED

•

Power supply has failed.

Documentation

T320 Power System Description on page 42•

• Powering On the T320 Router on page 102

• Maintaining the T320 Power Supplies on page 124

T320 Cooling System Description

The cooling system consists of the following components:

•

Two front fan trays

•

Front air filter

•

Rear fan tray

•

Rear air filter

The cooling system components work together to keep all router components within the acceptable temperature range (see Figure 26 on page 44). All fan trays and filters are hot-insertable and hot-removable. The two front fan trays are interchangeable. The front and rear fan trays are not interchangeable.

On steadily

Power supply is installed correctly and is functioning normally.

Figure 26: Airflow Through the T320 Chassis

The host subsystem monitors the temperature of the router components. When the router is operating normally, the fans function at lower than full speed. If a fan fails or the ambient temperature rises above a threshold, the speed of the remaining fans is automatically adjusted to keep the temperature within the acceptable range. If the

Chapter 3: T320 Hardware Components

ambient maximum temperature specification is exceeded and the system cannot be adequately cooled, the Routing Engine shuts down some or all of the hardware components.

Documentation

Maintaining the T320 Air Filters on page 112•

• Maintaining the T320 Fan Trays on page 113

• Troubleshooting the T320 Cooling System on page 132

• Replacing the T320 Cooling System Components

T320 Cable Management System Description

The cable management system (see Figure 27 on page 45) consists of a row of nine semicircular plastic bobbins mounted on the front of therouter below the FPC card cage. The PIC cables pass between the bobbins and into the tray, keeping the cables organized and securely in place. The curvature of the bobbins also helps maintain the proper bend radius for optical PIC cables.

You can pull the cable management system up and outward to lock it into the maintenance position. This allows you to access the lower fan tray and the front air filter.

Figure 27: T320 Cable Management System

Documentation

• T320 Router Description on page 3

• T320 Chassis Description on page 12

• Removing the T320 Cable Management System on page 79

T320 Core Router Hardware Guide

PART 2

T320 Router Initial Installation

•

Preparing for T320 Router Installation on page 49

•

Unpacking the T320 Router on page 53

•

Installing the T320 Router Mounting Hardware on page 59

•

Installing the T320 Router Using a Mechanical Lift on page 67

•

Installing the T320 Router Without a Mechanical Lift on page 73

•

Connecting the T320 Router on page 93

•

Providing Power to the T320 Router on page 99

•

Performing the Initial T320 Junos OS Configuration on page 105

T320 Core Router Hardware Guide

CHAPTER 4

Preparing for T320 Router Installation

•

T320 Site Preparation Checklist Requirements on page 49

•

T320 Rack Requirements on page 50

•

T320 Clearance Requirements for Airflow and Hardware Maintenance on page 51

T320 Site Preparation Checklist Requirements

The checklist in Table 15 on page 49 summarizes the tasks you need to perform when preparing a site for router installation.

Table 15: T320 Site Preparation Checklist

DatePerformed ByFor More InformationItem or Task

Environment

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

“T320 Physical Specifications” on page 241

Power

Measure distance between external power sources and router installation site.

Locate sites for connection of system grounding.

Calculate the power consumption and requirements.

Rack

Verify that your rack meets the minimum requirements for the installation of the router.

Plan rack location, including required space clearances.

If arack isused, secure rack tofloor andbuilding structure.

“T320 DC Power Cable Specifications” on page 248

“T320 Chassis Grounding Cable and Lug Specifications” on page 247

“T320 Power Requirements” on page 246

“T320 Rack Requirements” on page 50

“T320 Clearance Requirements for Airflow and Hardware Maintenance” on page 51

“T320 Rack Requirements” on page 50

T320 Core Router Hardware Guide

Table 15: T320 Site Preparation Checklist (continued)

Cables

Acquire cables and connectors:

•

Determine the number of cables needed based on your planned configuration.

•

Review the maximum distance allowed for each cable. Choose the length ofcable based on the distance between the hardware components being connected.

“Calculating Power Budget for Fiber-Optic Cable for M Series, MX Series, and T Series Routers” on page 254

“Calculating Power Margin for Fiber-Optic Cable for M Series, MX Series, and T Series Routers” on page 254

DatePerformed ByFor More InformationItem or Task

Plan the cable routing and management.

Documentation

T320 Router Installation Summary on page 53•

• Safety Requirements, Warnings, and Guidelines for Installing the T320 Router on

page 67

• T320 Chassis Lifting Guidelines on page 213

T320 Rack Requirements

The T320 Core router can be installed many types of racks, including four-post racks or cabinets and open-frame racks. An example of an open-frame rack appears in Figure 28 on page 51.

The router isdesigned forinstallation in a 19-in. rack as defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310-D) published by the Electronics Industry Association (http://www.eia.org).

With the use of adapters, the router is designed to fit into a 600-mm-wide rack , 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 theEuropean TelecommunicationsStandardsInstitute (http://www.etsi.org). Use approved wing devices to narrow the opening between the rails.

“Maintaining T320 PICs and PIC Cables” on page 121

The rack rails must be spaced widely enough to accommodate the router chassis's external dimensions: 25.13 in. (63.82 cm) high, 31.4 in. (79.8 cm) deep, and 17.43 in. (44.3 cm) wide. The outer edges of the front-mounting flanges and center-mounting brackets extend the width to 19 in. (48.3 cm). The spacing of rails and adjacent racks must also allow for the clearances around the router and rack that are specified in “T320 Clearance Requirements for Airflow and Hardware Maintenance” on page 51.

The chassis height of 25.13 in. (63.82 cm) is approximately 14.4 U. A U is the standard rack unit defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310-D) published by the Electronics IndustryAssociation. Youcan stack three routers in a rack that has at least 44 U (77 in. or 1.96 m) of usable vertical space.

Chapter 4: Preparing for T320 Router Installation

The rack must be strong enough to support the weight of the fully configured router, up to approximately 370 lb (168 kg). If you stack three fully configured routers in one rack, it must be capable of supporting about 1110 lb (504 kg).

Figure 28: Typical Open-Frame Rack

Documentation

T320 Chassis Description on page 12•

• Installing the T320 Mounting Hardware for a Four-Post Rack or Cabinet on page 60

• Installing the T320 Mounting Hardware for an Open-Frame Rack on page 63

• Safety Requirements, Warnings, and Guidelines for Installing the T320 Router on

page 67

T320 Clearance Requirements for Airflow and Hardware Maintenance

When planning the installation site, you must allow sufficient clearance around the rack (see Figure 29 on page 52):

•

For the cooling system to function properly, the airflow around the chassis must be unrestricted. Figure 26 on page 44 depicts the airflow in the router.

T320 Core Router Hardware Guide

•

Figure 29: T320 Chassis Dimensions and Clearance Requirements

NOTE: If you mount the router in a cabinet, be sure that ventilation is sufficient to prevent overheating.

For service personnel to remove and install hardware components, there must be adequate space at the front and back of the router. At least 24 in. (61 cm) is required both in front of and behind the router. NEBS GR-63 recommends that you allow at least 30 in. (72.6 cm) in front of the rack.

Documentation

• T320 Cooling System Description on page 44

• T320 Chassis Description on page 12

• Safety Requirements, Warnings, and Guidelines for Installing the T320 Router on

page 67

• T320 Physical Specifications on page 241

CHAPTER 5

Unpacking the T320 Router

•

T320 Router Installation Summary on page 53

•

Tools and Parts Required to Unpack the T320 Router on page 54

•

Unpacking the T320 Router on page 54

•

Verifying the T320 Router Parts Received on page 55

T320 Router Installation Summary

Proceed through the installation process in the following order:

1. Prepare your installation site.

See “T320 Site Preparation Checklist Requirements” on page 49 when you are ready to unpack and install the router.

2. Review the safety guidelines.

See “Installation Safety Warnings for M Series, MX Series, and T Series Routers” on page 213.

Documentation

3. Unpack the router and verify the parts received.

4. Install the mounting hardware.

See “Installing the T320 Mounting Hardware for a Four-Post Rack or Cabinet” on page 60 or “Installing the T320 Mounting Hardware for an Open-Frame Rack” on page 63.

5. Install the router.

See “Installing the T320 Router Using a Mechanical Lift” on page 68 or “Installing the T320 Chassis in the Rack Manually” on page 81.

6. Perform the initial system startup.

See “Initially Configuring the T320 Router” on page 105.

T320 Chassis Description on page 12•

• Safety Requirements, Warnings, and Guidelines for Installing the T320 Router on

page 67

• T320 Chassis Lifting Guidelines on page 213

T320 Core Router Hardware Guide

Tools and Parts Required to Unpack the T320 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 toremove bracket bolts fromthe shipping pallet

•

Blank panels to cover any slots not occupied by a component

Documentation

T320 Chassis Description on page 12•

• Safety Requirements, Warnings, and Guidelines for Installing the T320 Router on

page 67

• T320 Chassis Lifting Guidelines on page 213

Unpacking the T320 Router

The router is shipped in a wooden crate. A wooden pallet forms the base of the crate. The router chassis is bolted to this pallet. Quick Start installation instructions and a cardboard accessory box are also included in the shipping crate.

The shipping cratemeasures 50 in. (127 cm)high, 30 in. (76.2 cm) wide, and 41 in.(104 cm) deep. The total weight of the crate containing the router and accessories can range from 582 lb (267 kg) to 650 lb (295 kg).

To unpack:

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

where you have enough room to remove the components from the chassis. While the chassis is bolted to the pallet, you can use a forklift or pallet jack to move it.

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

unpack it until you are ready to begin installation.

2. Position the shipping crate with the arrows pointing up.

3. Open all the latches on the shipping crate.

4. Remove the front door of the shipping crate cover and set it aside.

5. Slide the remainder of the shipping crate cover off the pallet.

6. Remove the foam covering the top of the router.

7. Remove the accessory box and the Quick Start documentation.

8. Verify the parts received.

9. Remove the vapor corrosion inhibitor (VCI) packs attached to the pallet, being careful

not to break the VCI packs open.

Chapter 5: Unpacking the T320 Router

10. To remove the brackets holding the chassis on the pallet, use a 1/2-in. socket wrench

and anumber 2 Phillips screwdriver to remove the boltsand screws fromthe brackets.

11. Store the brackets and bolts inside the accessory box.

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

or ship the router at a later time.

13. Proceed with the installation.

Figure 30: Contents of the Shipping Crate

Documentation

T320 Chassis Description on page 12•

• Verifying the T320 Router Parts Received on page 55

• Installing the T320 Router Using a Mechanical Lift on page 68

• Installing the T320 Chassis in the Rack Manually on page 81

Verifying the T320 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.

The main shipment contains therouter chassis with installed components,listed inTable 16 onpage 56,and an accessory box, which containsthe partslisted inTable 17 on page 57.

T320 Core Router Hardware Guide

Table 16: T320 Router Parts List

QuantityComponent

1Chassis, including midplane, craft interface, and

center-mounting brackets

Up to 8FPCs

Up to 2 per FPCPICs

3SIBs

1 or 2Routing Engines

1 or 2T-CBs

1 or 2SCGs

2Power supplies

Blank panels for slots without components installed

1CIP

2Front fan trays

1Rear fan tray

1Quick start installation

1Front mounting shelf

1Rear mounting shelf

2Spacer bars

One blank panel for each slot not occupied by a component

Table 17: T320 Accessory Box Parts List

QuantityPart

1Affidavit for T1 connection

2Connectors for alarm relay cables

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

1ESD wrist strap with cable

1Ethernet cable, 15-ft length, to connect

Routing Engine to management device

1 of eachPCMCIA card holder and hook-and-loop

fasteners (male and female)

5DC Power and grounding cable lugs

Chapter 5: Unpacking the T320 Router

Documentation

1Read me first document

2Screws to fasten grounding cable to chassis

Bag of 14Screws to mount chassis

1Serial cable, 6-ft length, to connect Routing

Engine to management console

1Software license agreement

2Washers for grounding cable lug

• T320 Chassis Description on page 12

• Installing the T320 Router Using a Mechanical Lift on page 68

• Installing the T320 Chassis in the Rack Manually on page 81

T320 Core Router Hardware Guide

CHAPTER 6

Installing the T320 Router Mounting Hardware

•

Verifying the T320 Rack-Mounting Hardware Received on page 59

•

Before You Install the T320 Rack-Mounting Hardware on page 59

•

Installing the T320 Mounting Hardware for a Four-Post Rack or Cabinet on page 60

•

Installing the T320 Mounting Hardware for an Open-Frame Rack on page 63

Verifying the T320 Rack-Mounting Hardware Received

The following mounting hardware is supplied with the T320 Core Router:

•

Large mounting shelf—Required for all mounting options

•

Small mounting shelf—Required only for a four-post rack or cabinet

•

Front-mounting flanges on the chassis—Required for a four-post rack or cabinet, or for front-mounting in an open-frame rack

•

Spacer bars attached to the rear of the front-mounting flanges—Required only for a four-post rack or cabinet

•

Center-mounting brackets—Required for center-mounting in an open-frame rack

Figure 4 on page 13 shows thecenter-mounting brackets and the front-mounting flanges.

Documentation

T320 Chassis Description on page 12•

• Unpacking the T320 Router on page 54

• Verifying the T320 Router Parts Received on page 55

Before You Install the T320 Rack-Mounting Hardware

The router can be installed in a four-post rack or cabinet or an open-frame rack. Before you install the T320 router, you install the mounting hardware on the rack. The procedure for installing the mounting hardware depends on the type of rack and how you are mounting the router.

T320 Core Router Hardware Guide

In anopen-frame rack, center-mounting is generally preferableto front-mounting because the more even distribution of weight provides greater stability. If you center-mount the chassis, you use the center-mounting brackets attached to thechassis; ifyou front-mount the chassis, you use the front-mounting flanges.

If you are mounting the router in a four-post rack or cabinet, you must install the spacer bars on the rack before you mount the chassis. For instructions about installing the mounting hardware, see “Installing the T320 Mounting Hardware for a Four-Post Rack or Cabinet” on page 60 or “Installing the T320 Mounting Hardware for an Open-Frame Rack” on page 63, depending on your type of installation.

After the mounting hardware is installed, proceed to “Installing the T320 Router Using a Mechanical Lift” on page 68 or “Installing the T320 Chassis in the Rack Manually” on page 81, depending on your type of installation.

Documentation

T320 Chassis Description on page 12•

• T320 Clearance Requirements for Airflow and Hardware Maintenance on page 51

• Verifying the T320 Router Parts Received on page 55

Installing the T320 Mounting Hardware for a Four-Post Rack or Cabinet

To prepare to install the T320 router into a four-post rack or cabinet:

•

Install cage nuts, if needed.

•

Install the large mounting shelf and spacer bars on the front rail.

•

Install the small mounting shelf on the rear rail.

•

Remove the center-mounting brackets from the chassis.

Table 18 on page60 specifies the holesin which you insert mounting screws(an X indicates a mounting hole location), and cage nuts if needed. The hole distances are relative to one of the standard U divisions on the rack. The bottom of all mounting shelves is at

0.0015 in. (0.01 U) above a U division.

Table 18: T320 Four-Post or Cabinet Rack Mounting Hole Locations

Large ShelfDistance Above U DivisionHole

Spacer Bars

Small Shelf

–X–13.86 U24.26 in. (61.6 cm)42

–X–10.86 U19.01 in. (48.3 cm)33

–X–7.86 U13.76 in. (34.9 cm)24

XX–4.86 U8.51 in. (21.6 cm)15

X––3.86 U6.76 in. ( 17.1 cm)12

Chapter 6: Installing the T320 Router Mounting Hardware

Table 18: T320 Four-Post or Cabinet Rack Mounting Hole Locations (continued)

Large ShelfDistance Above U DivisionHole

Spacer Bars

Small Shelf

X––4.86 U5.01 in. ( 12.7 cm)9

XX–1.86 U3.26 in. (8.3 cm)6

X––0.86 U1.51 in. (3.8 cm)3

––X0.50 U0.88 in. (2.2 cm)2

To install the mounting shelves and spacer bars:

1. Install cage nuts, if needed, in the mounting holes specified in Table 18 on page 60:

•

On the front rack rails, install cage nuts in the holes specified for the large shelf and the spacer bars.

•

On the rear rack rails, install cage nuts in the holes specified for the small shelf.

2. On the front of each front rack rail, partially insert a mounting screw into the lowest

hole specified in Table 18 on page 60 for the large shelf and the spacer bars.

3. Install the large shelf on the front rack rails. Rest the bottom slot of each flange on a

mounting screw.

4. Tighten all the screws completely.

5. The router is shipped witheach spacer barattachedto therear ofeach front-mounting

flange. Remove each spacer bar by removing the screws that fasten the spacer bar to the front-mounting flange.

6. Place one of the spacer bars over a flange of the installed large shelf. Position the

notch in the rear of the spacer bar so the upper part of the bar is flush with the rack rail and the lower part is flush with the flange of the shelf (see Figure 31 on page 62).

7. Insert a mounting screw into each of the nonthreaded holes in the recesses of the

spacer bar to secure the spacer bar. Each hole should have a cage nut behind it.

8. Repeat Steps 6 and 7 for the other spacer bar.

9. Tighten all the screws completely.

10. On the back of each rear rack rail, partially insert a mounting screw into the lowest

hole specified in Table 18 on page 60 for the small shelf.

11. Install the small shelf on the back rack rails. Rest the bottom slot of each flange on a

mounting screw.The small shelf installs on the back of the rear rails, extending toward the center of the rack. The bottom of the small shelf on the rear rack rails must align with the bottom of the large shelf on the front rack rails.

12. Partially insert screws into the open holes in the ears of the small shelf.

T320 Core Router Hardware Guide

13. Tighten all the screws completely.

14. Remove the mounting brackets from the chassis by loosening the screws at the top

Figure 31: Positioning the Spacer Bar on the Rack

and bottom of each bracket.

Chapter 6: Installing the T320 Router Mounting Hardware

Figure 32: Installing the Mounting Hardware for a Four-Post Rack or Cabinet

Documentation

T320 Chassis Description on page 12•

• T320 Site Preparation Checklist Requirements on page 49

• T320 Clearance Requirements for Airflow and Hardware Maintenance on page 51

Installing the T320 Mounting Hardware for an Open-Frame Rack

To prepare to mount the T320 Core Router into an open-frame rack, install the large mounting shelf on the rack. Install cage nuts, if needed. The small mounting shelf and the spacer bars are not needed.

For open-frame racks, center-mounting the chassis is preferable to front-mounting because the more even distribution of weight provides greater stability. You use the center-mounting brackets to center-mount the chassis in an open-frame rack; you use the front-mounting flanges to front-mount the chassis in an open-frame rack.

For an open-frame rack, Table 19 on page 64 specifies the holes in which you insert mounting screws (an X indicates a mounting hole location), and cage nuts if needed. The hole distances are relative to one of the standard U divisions onthe rack.For reference, the bottom of all mounting shelves is at 0.0015 in. (0.01 U) above a U division.

T320 Core Router Hardware Guide

Table 19: T320 Open-Frame Rack Mounting Hole Locations

Large ShelfDistance Above U DivisionHole

Chassis

X–12.86 U22.51 in. (57.2 cm)39

XX9.86 U17.26 in. (43.8 cm)30

XX6.86 U12.01 in. (30.5 cm)21

XX3.86 U6.76 in. (17.1 cm)12

XX0.86 U1.51 in. (3.8 cm)3

To install the large mounting shelf (see Figure 33 on page 65):

1. Install cage nuts, if needed, in the mounting holes specified in Table 19 on page 64:

•

2. On the front side of the rack rails, install cage nuts for the chassis.

•

On the rear side of the rack rails, install cage nuts for the large shelf.

3. On the rear of each rack rail, partially insert a mounting screw into the highest hole

specified for the large shelf in Table 19 on page 64.

4. Install the large shelf on the rack. Hang the shelf over the mounting screws using the

keyhole slots located near the top of the large shelf flanges.

5. Partially insert screws into the open holes in the ears of the large shelf.

6. Tighten all the screws completely.

7. Remove the center-mounting brackets by loosening the screws atthe topand bottom

of each bracket.

8. Optionally, remove thescrews the fasten thespacer bars to thefront-mounting flange.

The router is shipped with a spacer bar attached to the rear of each front-mounting flange, and two center-mounting brackets attached to the chassis.

Chapter 6: Installing the T320 Router Mounting Hardware

Figure 33: Installing the Mounting Hardware for an Open-Frame Rack

Documentation

• T320 Chassis Description on page 12

• T320 Site Preparation Checklist Requirements on page 49

• T320 Clearance Requirements for Airflow and Hardware Maintenance on page 51

T320 Core Router Hardware Guide

CHAPTER 7

Installing the T320 Router Using a Mechanical Lift

•

Safety Requirements, Warnings, and Guidelines for Installing the T320 Router on page 67

•

Before You Install the T320 Router Using a Mechanical Lift on page 67

•

Tools Required to Install the T320 Router Using a Mechanical Lift on page 68

•

Installing the T320 Router Using a Mechanical Lift on page 68

Safety Requirements, Warnings, and Guidelines for Installing the T320 Router

To avoid harm to yourself or the routeras youinstall and maintain it, follow the guidelines for working with and near electrical equipment, as well as the safety procedures for working with routers. However, providing an exhaustive set of guidelines for working with electrical equipment is beyond the scope of this documentation.

Documentation

T320 Site Preparation Checklist Requirements on page 49•

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

T Series Routers

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

page 227

Before You Install the T320 Router Using a Mechanical Lift

Because of the router's size and weight—up to 370 lb (168 kg) depending on configuration—we strongly recommend that you installthe router usinga lift., as described in “Installing the T320 Router Using a Mechanical Lift” on page 68. If you do not use a lift to install the router, refer to “Installing the T320Chassis in the Rack Manually” on page 81 for complete instructions to safely install the router.

Before installing the router in the rack:

•

“T320 Site Preparation Checklist Requirements” on page 49 which summarizes the tasks you need to perform when preparing a site for router installation.

T320 Core Router Hardware Guide

•

Removethe router from theshipping crate as described in “Unpacking the T320 Router” on page 54.

Documentation

T320 Router Installation Summary on page 53•

• Safety Requirements, Warnings, and Guidelines for Installing the T320 Router on

page 67

• T320 Chassis Lifting Guidelines on page 213

Tools Required to Install the T320 Router Using a Mechanical Lift

To install the T320 chassis using a mechanical lift, you need the following tools:

•

Mechanical lift

•

Phillips (+) screwdrivers, number 2

Documentation

T320 Chassis Lifting Guidelines on page 213•

• Safety Requirements, Warnings, and Guidelines for Installing the T320 Router on

page 67

• T320 Router Installation Summary on page 53

Installing the T320 Router Using a Mechanical Lift

CAUTION: Before front-mounting the router in a rack, have a qualified technician verify that the rack is strong enough to support the router's weight and is adequately supported at the installation site.

To install the router using a lift (see Figure 34 on page 69):

1. Ensure that the rack is in its permanent location and is secured to the building. Ensure

that the installationsite allows adequate clearance for both airflow and maintenance. For details, see “T320 Site Preparation Checklist Requirements” on page 49.

2. Load the router onto the lift, making sure it rests securely on the lift platform.

CAUTION: Do not lift the router using the craft interface, installation

handle, or the handles on the sides of the chassis. Use these handles only to help position the router.

3. Using the lift, position the router in front of the rack or cabinet, centering it in front of

the mounting shelves.

4. Lift the chassis approximately 0.75 in. above the surface of the mounting shelves and

position it as close as possible to the shelves.

Chapter 7: Installing the T320 Router Using a Mechanical Lift

5. Carefully slide the router onto the mounting shelves so that the bottom of the chassis

and the mounting shelves overlap by approximately two inches.

6. With one person pulling on the installation handle from the rear of the rack or cabinet

while two people push on the front-mounting flanges, slide the router onto the mounting shelves until the center-mounting brackets or front-mounting flanges contact the rack rails or spacer bars (depending on your type of installation). The shelvesensure thatthe holes inthe mounting brackets and the front-mounting flanges of the chassis align with the holes in the rack rails.

7. Move the lift away from the rack.

8. Install the mounting screws:

•

Four-post rack or cabinet—Install a mounting screw into each of the holes in the spacer bars.

•

Open-frame rack—Install a mounting screw into each of the open mounting holes aligned with the rack, starting from the bottom.

9. Visually inspect the alignment of the router. If the router is installed properly in the

rack, all the mounting screws on one side of the rack should be aligned with the mounting screws on the opposite side and the router should be level.

Figure 34: Installing the T320 Router in the Rack

T320 Core Router Hardware Guide

NOTE: This illustration depicts the router being installed in a four-post rack.

For anillustrationof the mounting hardwarerequiredfor an open-frame rack, see Figure 33 on page 65.

•

Attaching the T320 Router Installation Handle on page 70

•

Removing the T320 Router Installation Handle and Reinstalling the Power Supplies on page 71

Attaching the T320 Router Installation Handle

To assist you with the installation of the T320 router, attach the installation handle over the power supply slots of the chassis. Remove the upper power supply first. To remove the power supplies and attach the handle:

1. Attach an electrostaticdischarge (ESD) grounding strap to your bare wrist,and connect

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

2. Switch the circuit breaker on the power supply faceplate to the off position (O). We

recommend this even though the power supplies are notconnected to powersources.

3. Loosen the captive screws on the lower corners of the power supply faceplate

completely. Twist the ejector handles on the upper corners of the faceplate counterclockwise to unseat the power supply.

4. Twist the ejector handles on the upper corners of the faceplate counterclockwise to

unseat the power supply.

5. Grasp the handle on the power supply faceplate and pull firmly to start removing the

power supply. Slide it halfway out of the chassis (see Figure 35 on page 71).

6. Place one hand underneath the power supply to support it and slide it completely out

of the chassis.

CAUTION: Each power supply weighs approximately 12 lb (5.4 kg). Be

prepared to support the full weight of the power supply as you remove it from the router.

7. Repeat the procedure for the other power supply.

8. Attach the installation handle by tightening the captive screws of the handle into the

holes previously occupied by the captive screws of the power supplies (see Figure 36 on page 71).

Chapter 7: Installing the T320 Router Using a Mechanical Lift

Figure 35: Removing a Power Supply Before Installing the Installation Handle

Figure 36: Attaching the Installation Handle

Removing the T320 Router Installation Handle and Reinstalling the Power Supplies

After you have installed the T320 router, remove the installation handle and reinstall the two power supplies in the chassis by following this procedure, starting with the lower power supply (see Figure 37 on page 72):

1. Attach an electrostaticdischarge (ESD) grounding strap to your bare wrist,and connect

the strap to one of the ESD points on the chassis. For more information about ESD, see “Preventing Electrostatic Discharge Damage to a T320 Router” on page 210.

2. Loosen the captive screws on the installation handle completely, and remove the

handle from the chassis.

3. Make sure that the circuit breaker on the power supply faceplate is in the off

position (O).

4. Using both hands, slide the power supply into the chassis until you feel resistance.

T320 Core Router Hardware Guide

5. Twist theejector handles at theupper corners ofthe powersupply faceplate clockwise

6. Tighten the captive screws at the lower corners of the power supply faceplate to

7. Repeat the procedure for the upper power supply.

Figure 37: Reinstalling a Power Supply

until they stop.

secure the power supply in the chassis.

Documentation

• Preventing Electrostatic Discharge Damage to a T320 Router on page 210

• T320 Router Installation Summary on page 53

• Safety Requirements, Warnings, and Guidelines for Installing the T320 Router on

page 67

• T320 Chassis Lifting Guidelines on page 213

CHAPTER 8

Installing the T320 Router Without a Mechanical Lift

•

Before You Install the T320 Router Without a Mechanical Lift on page 73

•

Tools and Parts Required to Install the T320 Router Without a Mechanical Lift on page 73

•

Removing T320 Components from the Chassis on page 74

•

Installing the T320 Chassis in the Rack Manually on page 81

•

Reinstalling T320 Components in the Chassis on page 85

Before You Install the T320 Router Without a Mechanical Lift

If you cannot use a mechanical lift to install the T320 router, you can install it manually. Beforeinstalling the router manually,you mustfirst remove components from the chassis, and you must reinstall the components once the router is installed in the rack. At least four people areneeded to safely lift the chassis intothe rack or cabinet. With components removed, the chassis weighs approximately 131.4 lb (59.6 kg).

Before installing the router in the rack, read the safety information in “T320Chassis Lifting Guidelines” on page 213. Remove the router from the shipping crate as described in “Unpacking the T320 Router” on page 54. Install the mounting hardware as described in “Installing the T320 Mounting Hardware for a Four-Post Rack or Cabinet” on page 60 or “Installing the T320 Mounting Hardware for an Open-Frame Rack” on page 63.

Documentation

T320 Router Installation Summary on page 53•

• Safety Requirements, Warnings, and Guidelines for Installing the T320 Router on

page 67

Tools and Parts Required to Install the T320 Router Without a Mechanical Lift

To install the T320 router, you need the following tools and parts:

•

Phillips (+) screwdrivers, numbers 1 and 2

•

Flat-blade (–) screwdriver, number 1

•

7/16-in. socket wrench

T320 Core Router Hardware Guide

•

3/8-in. nut driver

ESD grounding wrist strap

Documentation

T320 Router Installation Summary on page 53•

• Safety Requirements, Warnings, and Guidelines for Installing the T320 Router on

page 67

• T320 Chassis Lifting Guidelines on page 213

Removing T320 Components from the Chassis

To make the T320 router light enough to install manually, you first remove most components from the chassis. The procedures in this section for removing components from the chassis are for initial installation only, and assume that you have not connected power cables to the router.The followingprocedures describe howto remove components from the chassis, first from the rear and then from the front:

Removing the T320 Power Supplies on page 74

Removing the T320 SIBs on page 75

Removing the T320 T-CBs on page 76

Removing the T320 SCG on page 77

Removing the T320 Rear Fan Tray on page 78

Removing the T320 Cable Management System on page 79

Removing the T320 FPCs on page 79

Removing the T320 Power Supplies

The power supplies are located at the rear of the T320 chassis below the SIBs. Each power supply weighs approximately 12 lb (5.4 kg).

To remove the power supplies, starting with the upper power supply:

1. Attach an electrostaticdischarge (ESD) grounding strap to your bare wrist,and connect

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

2. Switch the circuit breaker on the power supply faceplate to the off position (O). We

recommend this even though the power supplies are notconnected to powersources.

3. Loosen the captive screws on the lower corners of the power supply faceplate

completely. Twist the ejector handles on the upper corners of the faceplate counterclockwise to unseat the power supply.

4. Twist the ejector handles on the upper corners of the faceplate counterclockwise to

unseat the power supply.

5. Grasp the handle on the power supply faceplate and pull firmly to start removing the

power supply. Slideit halfwayout of thechassis (see “Remove aPower Supply Before Installing the Installation Handle” on page 70).

Juniper networks T320 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

List of Figures

List of Tables

About the Documentation

Junos OS Documentation and Release Notes

Objectives

Audience

Documentation Conventions

Documentation Feedback

Requesting Technical Support

Self-Help Online Tools and Resources

Opening a Case with JTAC

T320 Router Description

System Architecture Description for M320, T320, T640, and T1600 Routers

Routing Engine Functions for M320, T320, T640, and T1600 Routers

Packet Forwarding Engine Architecture for T320, T640, and T1600 Routers

Packet Forward Engine Components

Data Flow Through the T320, T640, and T1600 Router

T320 Component Redundancy

T320 Chassis Description

T320 Midplane Description

T320 Flexible PIC Concentrators (FPCs) Overview

T320 Flexible PIC Concentrators (FPCs) Description

T320 FPC Function

T320 FPC Slots

T320 FPC Components

T320 FPC Edges

Identifying the T320 FPCs

T320 FPCs Supported

T320 PIC Description

T320 Switch Interface Boards (SIBs) Overview

T320 Switch Interface Boards (SIBs) Description

T320 SIB LEDs

T320 Host Subsystem Description

T320 Routing Engine Overview

T320 Routing Engine Description

T320 RE-600 Description

T320 RE-600 LEDs

T320 RE-1600 Description

T320 RE-1600 LEDs

T320 RE-2000 Description

T320 RE-2000 LEDs

T320 Control Boards Overview

T320 T-CB Description

T320 T-CB LEDs

T320 SONET Clock Generators (SCGs) Overview

T320 Standard SONET Clock Generator (SCG) Description

T320 SCG LEDs

T320 Craft Interface Overview

T320 Craft Interface Description

T320 Craft Interface Alarm LEDs and ACO/LT Button

T320 Craft Interface LCD and Navigation Buttons

T320 Craft Interface Host Subsystem LEDs

T320 Craft Interface SIB LEDs

T320 Craft Interface FPC LEDs

T320 Connector Interface Panel (CIP) Description

T320 Routing Engine Ports

T320 Alarm Relay Contacts

T320 Power System Overview

T320 Power System Description

T320 Power Supply LEDs

T320 Cooling System Description

T320 Cable Management System Description

T320 Site Preparation Checklist Requirements

T320 Rack Requirements

T320 Clearance Requirements for Airflow and Hardware Maintenance

T320 Router Installation Summary

Tools and Parts Required to Unpack the T320 Router

Unpacking the T320 Router

Verifying the T320 Router Parts Received

Verifying the T320 Rack-Mounting Hardware Received

Before You Install the T320 Rack-Mounting Hardware

Installing the T320 Mounting Hardware for a Four-Post Rack or Cabinet

Installing the T320 Mounting Hardware for an Open-Frame Rack

Safety Requirements, Warnings, and Guidelines for Installing the T320 Router

Before You Install the T320 Router Using a Mechanical Lift