Juniper networks PHYSICAL LAYER User Manual

JUNOSe Software for E Series Broadband Services Routers
Physical Layer Configuration Guide
Release 11.1.x
Juniper Networks, Inc.
1194 North Mathilda Avenue
Sunnyvale, California 94089
USA
www.juniper.net
Published: 2010-03-22
Juniper Networks, the Juniper Networks logo, JUNOS, NetScreen, ScreenOS, and Steel-Belted Radius are registered trademarks of Juniper Networks, Inc. in the United States and other countries. JUNOSe is a trademark of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners.
Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, modify, transfer, or otherwise revise this publication without notice.
Products made or sold by Juniper Networks or components thereof might be covered by one or more of the following patents that are owned by or licensed to Juniper Networks: U.S. Patent Nos. 5,473,599, 5,905,725, 5,909,440, 6,192,051, 6,333,650, 6,359,479, 6,406,312, 6,429,706, 6,459,579, 6,493,347, 6,538,518, 6,538,899, 6,552,918, 6,567,902, 6,578,186, and 6,590,785.
JUNOSe Software for E Series Broadband Services Routers Physical Layer Configuration Guide
Release 11.1.x Copyright © 2010, Juniper Networks, Inc. All rights reserved. Printed in USA.
Writing: Krupa Chandrashekar, Subash Babu Asokan, Mark Barnard, Bruce Gillham, Sarah Lesway-Ball, Helen Shaw, Brian Wesley Simmons, Fran Singer, Michael Taillon Editing: Benjamin Mann Illustration: Nathaniel Woodward Cover Design: Edmonds Design
Revision History April 2010FRS JUNOSe 11.1.x
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 Software 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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Abbreviated Table of Contents

About the Documentation xix
Part 1 Chapters
Chapter 1 Configuring Channelized T3 Interfaces 3
Chapter 2 Configuring T3 and E3 Interfaces 45
Chapter 3 Configuring Unchannelized OCx/STMx Interfaces 73
Chapter 4 Configuring Channelized OCx/STMx Interfaces 109
Chapter 5 Configuring Ethernet Interfaces 175
Chapter 6 Managing Tunnel-Service and IPSec-Service Interfaces 215
Part 2 Index
Index 233
Abbreviated Table of Contents vii
JUNOSe 11.1.x Physical Layer Configuration Guide
viii

Table of Contents

About the Documentation xix
E Series and JUNOSe Documentation and Release Notes ..............................xix
Audience ......................................................................................................xix
E Series and JUNOSe Text and Syntax Conventions .....................................xix
Obtaining Documentation ............................................................................xxi
Documentation Feedback .............................................................................xxi
Requesting Technical Support ......................................................................xxi
Self-Help Online Tools and Resources ...................................................xxii
Opening a Case with JTAC .....................................................................xxii
Part 1 Chapters
Chapter 1 Configuring Channelized T3 Interfaces 3
Overview .........................................................................................................3
MDL/FDL Support .....................................................................................3
MDL Standards ...................................................................................4
FDL Standards ....................................................................................4
Timeout of Received MDL and FDL Messages ....................................4
Frequency of FDL Path Messages .......................................................5
Higher-Level Protocols ..............................................................................5
Platform Considerations ..................................................................................5
CT3/T3-F0 Line Modules and CT3/T3 12 I/O Modules ................................6
Exchanging Modules .................................................................................6
Interface Stack ..........................................................................................7
Numbering Scheme ..................................................................................7
T3 Controllers .....................................................................................7
T1 Channels .......................................................................................8
Fractional T1 ......................................................................................8
HDLC Channels ..................................................................................9
References ......................................................................................................9
Before You Configure an Interface ...................................................................9
Configuration Tasks .......................................................................................10
Configuring a T3 Controller .....................................................................10
Configuring MDL Messages ..............................................................11
Other Optional Tasks ........................................................................12
Configuring T1 Channels .........................................................................14
Optional Tasks .................................................................................14
Configuring FDL Messages ...............................................................17
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JUNOSe 11.1.x Physical Layer Configuration Guide
Configuring an HDLC Channel ................................................................20
Optional Tasks .................................................................................20
Configuration Example ..................................................................................23
Testing Interfaces ..........................................................................................23
Testing at the T3 Layer ...........................................................................23
Testing at the T1 Layer ...........................................................................26
Monitoring Interfaces ....................................................................................28
Setting a Baseline ....................................................................................29
Displaying Counters and Time Intervals ..................................................29
Output Filtering ......................................................................................29
Chapter 2 Configuring T3 and E3 Interfaces 45
Overview .......................................................................................................45
MDL Support ...........................................................................................45
MDL Standards .................................................................................46
Timeout of Received MDL Messages .................................................46
Higher-Level Protocols ............................................................................47
Platform Considerations ................................................................................47
COCX-F3 Line Modules and Associated I/O Modules ...............................47
OCx/STMx/DS3-ATM Line Modules and 4xDs3 ATM I/O Modules ............48
CT3/T3-F0 Line Modules and CT3/T3 12 I/O Modules ..............................48
Interface Stack ........................................................................................49
Numbering Scheme ................................................................................49
References ....................................................................................................50
Before You Configure an Interface .................................................................50
Configuration Tasks .......................................................................................51
Configuring a T3 or an E3 Controller ......................................................51
Configuring MDL Messages ..............................................................52
Optional Tasks .................................................................................54
Configuring Fractional T3 .......................................................................56
Configuring an HDLC Channel ................................................................57
Optional Tasks .................................................................................57
Configuration Examples ................................................................................60
Testing Interfaces ..........................................................................................61
Sending BERT Patterns ...........................................................................61
Enabling Local, Network, and Payload Loopback ....................................62
Enabling Remote Loopback ....................................................................62
Monitoring Interfaces ....................................................................................64
Setting a Baseline ....................................................................................64
Displaying Counters and Time Intervals ..................................................64
Output Filtering ......................................................................................65
Chapter 3 Configuring Unchannelized OCx/STMx Interfaces 73
Overview .......................................................................................................73
APS and MSP ..........................................................................................73
Automatic Switchover ......................................................................74
Manual Switchover ...........................................................................74
Switching Mechanisms .....................................................................74
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Table of Contents
Reversion After Switchover ..............................................................75
Communication Methods .................................................................75
Higher-Level Protocols ............................................................................77
Platform Considerations ................................................................................77
OCx/STMx/DS3-ATM Line Modules .........................................................78
OCx/STMx POS Line Modules .................................................................78
OC48 Line Modules .................................................................................79
OC3/STM1 GE/FE Line Module ................................................................79
ES2 4G Line Module ................................................................................80
E120 Router Configuration ...............................................................80
E320 Router Configuration ...............................................................80
OCx/STMx ATM IOAs .......................................................................81
OCx/STMx POS IOAs ........................................................................81
Numbering Scheme ................................................................................81
ERX7xx Models, ERX14xx Models, and the ERX310 Router .............82
E120 and E320 Routers ....................................................................82
Interface Specifier ...................................................................................83
Exchanging Modules ...............................................................................83
References ....................................................................................................84
Configuration Tasks .......................................................................................84
Configuring the SONET/SDH Layers ........................................................84
Configuring APS/MSP ..............................................................................89
Configuring the Working Interface ...................................................90
Configuring the Protect Interface ......................................................91
Configuring SONET/SDH Alarms ......................................................93
Configuration Example .....................................................................94
Configuring APS Event Collection .....................................................94
Manual Switching to a Redundant Port ...................................................95
Testing Interfaces ..........................................................................................96
Loopback Testing ....................................................................................96
Testing Connectivity ...............................................................................96
Monitoring SONET/SDH Interfaces ................................................................97
Monitoring Interface Statistics .................................................................97
Monitoring APS/MSP .............................................................................105
Chapter 4 Configuring Channelized OCx/STMx Interfaces 109
Overview .....................................................................................................109
SONET APS and SDH MSP ....................................................................109
MDL/FDL Support .................................................................................109
MDL Standards ...............................................................................110
FDL Standards ................................................................................110
Timeout of Received MDL and FDL Messages ................................110
Frequency of FDL Path Messages ...................................................111
Higher-Level Protocols ..........................................................................111
Platform Considerations ..............................................................................112
cOCx/STMx FO Line Module .................................................................112
Interface Stack ......................................................................................113
SONET/SDH VT Controllers ............................................................113
T3 Controllers .................................................................................116
Table of Contents xi
JUNOSe 11.1.x Physical Layer Configuration Guide
HDLC ..............................................................................................116
Numbering Scheme ..............................................................................117
References ..................................................................................................117
Before You Configure an Interface ...............................................................118
Configuration Tasks .....................................................................................119
SONET/SDH Configuration Tasks ..........................................................119
Configuring Higher Layers ..............................................................124
T1/E1 Configuration Tasks ....................................................................124
Configuring an Unframed E1 Line ..................................................125
Configuring T1 and E1 Lines ..........................................................125
Configuring T1 Interfaces to Send FDL Messages ...........................128
Disabling Interfaces and Channel Groups .......................................130
Configuring Higher Layers ..............................................................130
T3 Configuration Tasks .........................................................................130
Configuring T3 Line Parameters .....................................................131
Configuring T3 Interfaces to Send MDL Messages ..........................133
Configuring T1 Channels on T3 Interfaces ......................................134
Configuring T1 Channels to Send FDL Messages ............................137
Configuring Higher Layers ..............................................................139
HDLC Channel Configuration Tasks ......................................................139
Optional Tasks ...............................................................................139
Configuration Examples ..............................................................................142
Example 1: Configuring Interfaces in SONET Mode ..............................142
Example 2: Configuring Interfaces in SDH Mode ..................................143
Example 3: Configuring Frame Relay ....................................................144
Example 4: Configuring PPP .................................................................144
Testing Interfaces ........................................................................................145
Sending BERT Patterns .........................................................................145
Receiving BERT Patterns .......................................................................147
Enabling Local or Network Loopback ....................................................147
Enabling Remote Loopback Testing ......................................................149
Testing Connectivity .............................................................................152
Monitoring Interfaces ..................................................................................153
Setting a Baseline ..................................................................................154
Output Filtering ....................................................................................154
Monitoring APS/MSP .............................................................................173
Chapter 5 Configuring Ethernet Interfaces 175
Ethernet Overview ......................................................................................175
Features ................................................................................................176
Ethernet Interface Platform Considerations .................................................176
Numbering Scheme ..............................................................................177
ERX7xx Models, ERX14xx Models, and the ERX310 Router ...........177
E120 and E320 Routers ..................................................................177
Interface Specifier .................................................................................178
Fast Ethernet I/O Modules ...........................................................................178
FE-8 I/O Module ....................................................................................178
FE-8 SFP I/O Module .............................................................................179
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Table of Contents
Gigabit Ethernet I/O Modules and IOAs .......................................................179
GE I/O Module .......................................................................................179
GE-2 SFP I/O Module .............................................................................180
Ports on GE-2 SFP I/O Module ........................................................180
Bandwidth and Line Rate Considerations .......................................180
GE-8 I/O Module ....................................................................................180
Bandwidth and Line Rate Considerations .......................................181
Managing High-Density Ethernet ....................................................182
OC3-2 GE APS I/O Module ....................................................................182
ES2-S1 GE-4 IOA ...................................................................................182
ES2-S1 GE-8 IOA ...................................................................................183
ES2 4G LM Combination ................................................................183
ES2 10G LM Combination ..............................................................186
ES2 10G ADV LM Combination ......................................................187
ES2-S3 GE-20 IOA .................................................................................188
ES2 10G LM Combination ..............................................................189
Bandwidth and Line Rate Considerations .......................................189
Managing High-Density Ethernet ....................................................189
ES2 10G ADV LM Combination ......................................................190
Bandwidth and Line Rate Considerations .......................................190
Managing High-Density Ethernet ....................................................190
10-Gigabit Ethernet IOAs .............................................................................191
ES2-S1 10GE IOA ..................................................................................191
Managing High-Density Ethernet ....................................................191
ES2-S2 10GE PR IOA .............................................................................191
ES2 10G Uplink LM Combination ...................................................192
ES2 10G LM Combination ..............................................................193
ES2 10G ADV LM Combination ......................................................194
Ethernet References ....................................................................................195
High-Density Ethernet .................................................................................196
Managing Port Redundancy on Gigabit Ethernet I/O Modules ......................197
Configuration Tasks for Ethernet .................................................................198
Configuring the Physical Interface ...............................................................199
Disabling Ethernet Interfaces ......................................................................205
Monitoring Ethernet Interfaces ....................................................................205
Setting Statistics Baselines ....................................................................205
Using Ethernet show Commands ..........................................................206
Table of Contents xiii
JUNOSe 11.1.x Physical Layer Configuration Guide
Chapter 6 Managing Tunnel-Service and IPSec-Service Interfaces 215
Tunnel-Service and IPSec-Service Overview ................................................215
Types of Tunnel-Server Ports ................................................................216
Dedicated Tunnel-Server Ports .......................................................216
Shared Tunnel-Server Ports ............................................................216
Types of Tunnel-Service Interfaces ........................................................216
Tunnel-Service Interface Platform Considerations .......................................217
Supported Modules for Dedicated Tunnel-Server Ports .........................217
ERX7xx Models, ERX14xx Models, and the ERX310 Router ...........218
E120 and E320 Routers ..................................................................218
Supported Modules for Shared Tunnel-Server Ports ..............................218
ERX14xx Models and the ERX310 Broadband Services Router ......218
E120 and E320 Routers ..................................................................218
Numbering Scheme ..............................................................................219
ERX7xx Models, ERX14xx Models, and the ERX310 Router ...........219
E120 and E320 Routers ..................................................................219
Interface Specifier .................................................................................220
Supported Applications for Dedicated and Shared Tunnel-Server
Ports ...............................................................................................220
Redundancy and Interface Distribution of Tunnel-Service Interfaces ...........221
SMs, ES2-S1 Service IOA, and Shared Tunnel-Server Modules ..............221
Static IP Tunnel-Service Interfaces ..................................................221
Dynamic Tunnel-Service Interfaces ................................................222
Interface Allocation for Shared Tunnel-Server Modules ..................222
ISMs ......................................................................................................222
Tunnel-Service Interface Considerations ......................................................223
Provisioning Tunnel-Service Interfaces .................................................223
Bandwidth Limitations of Shared Tunnel-Server Ports ....................224
Exchanging Tunnel-Server Modules ......................................................224
Unprovisioned Tunnel-Service Interfaces ..............................................224
Configuring Tunnel-Server Ports and Tunnel-Service Interfaces ...................225
Identifying the Physical Location of the Tunnel-Server Port ..................225
Provisioning the Maximum Number of Interfaces on a Tunnel-Server
Port ................................................................................................225
Verifying the Tunnel-Server Interface Configuration .............................226
Unprovisioning Tunnel-Service Interfaces .............................................226
Monitoring Tunnel-Service Interfaces ..........................................................228
Part 2 Index
Index ...........................................................................................................233
xiv Table of Contents

List of Figures

Part 1 Chapters
Chapter 1 Configuring Channelized T3 Interfaces 3
Figure 1: Stack for Channelized T3 Interface ...................................................7
Figure 2: T1 Channels and DS0 Timeslots on a T3 Line ...................................8
Chapter 2 Configuring T3 and E3 Interfaces 45
Figure 3: Stack for T3 ATM Interfaces ............................................................49
Figure 4: Stack for T3 Frame and E3 Frame Interfaces ..................................49
Chapter 3 Configuring Unchannelized OCx/STMx Interfaces 73
Figure 5: Interface Stack for OCx/STMx/DS3-ATM Interfaces .........................78
Figure 6: Interface Stack for OCx/STMx POS and OC48/STM16
Interfaces ................................................................................................79
Figure 7: Interface Stack for OCx/STMx POS Interfaces .................................81
Chapter 4 Configuring Channelized OCx/STMx Interfaces 109
Figure 8: Stack for cOCx/STMx Interfaces ....................................................113
Figure 9: SONET Multiplexing ......................................................................114
Figure 10: SDH Multiplexing ........................................................................115
Figure 11: Configuring Fractional T1 in SONET Mode ..................................142
Figure 12: Configuring Fractional E1 and Unframed E1 in SDH Mode .........143
Chapter 6 Managing Tunnel-Service and IPSec-Service Interfaces 215
Figure 13: Interface Stacking for Tunnel-Service Interfaces .........................215
List of Figures xv
JUNOSe 11.1.x Physical Layer Configuration Guide
xvi List of Figures

List of Tables

About the Documentation xix
Table 1: Notice Icons .....................................................................................xx
Table 2: Text and Syntax Conventions ..........................................................xx
Part 1 Chapters
Chapter 1 Configuring Channelized T3 Interfaces 3
Table 3: MDL and FDL Message Strings and Message Types ............................4
Table 4: Sample T1 Subchannel/Timeslot Assignments ...................................8
Chapter 2 Configuring T3 and E3 Interfaces 45
Table 5: MDL Message Strings and Message Types ........................................46
Chapter 3 Configuring Unchannelized OCx/STMx Interfaces 73
Table 6: Sample Pairings for Valid APS/MSP Groups ......................................74
Table 7: Explanation of K1 Byte ....................................................................76
Table 8: Explanation of K2 Byte ....................................................................76
Chapter 4 Configuring Channelized OCx/STMx Interfaces 109
Table 9: MDL and FDL Message Strings and Message Types ........................111
Table 10: Tributary Standards That cOCx/STMx Interfaces Support .............114
Table 11: Identifiers for SONET/SDH VT Controllers ....................................115
Table 12: Definitions for Identifiers for SONET/SDH VT Controllers ............115
Table 13: Identifiers for T3 Controllers ........................................................116
Chapter 5 Configuring Ethernet Interfaces 175
Table 14: Average Data Rate for ERX310 router or in Slots 2 or 4 of an
ERX1440 router ....................................................................................181
Table 15: Average Data Rate When Installed in All Other Slots on an ERX1440
router ....................................................................................................182
Table 16: Average Data Rate for One ES2-S1 GE-8 IOA Installed with an ES2
4G LM ...................................................................................................184
Table 17: Average Data Rate for Two ES2-S1 GE-8 IOAs Installed with an
ES2 4G LM ............................................................................................184
Table 18: Average Data Rate for ES2-S1 GE-8 IOA Combined with Other IOA
Types in Same Slot ...............................................................................185
Table 19: Average Data Rate for One ES2-S1 GE-8 IOA Installed with an ES2
10G LM .................................................................................................186
Table 20: Average Data Rate for Two ES2-S1 GE-8 IOAs Installed with an
ES2 10G LM ..........................................................................................187
Table 21: Average Data Rate for One ES2-S1 GE-8 IOA Installed with an ES2
10G ADV LM .........................................................................................188
Table 22: Average Data Rate for Two ES2-S1 GE-8 IOAs Installed with an
ES2 10G ADV LM ..................................................................................188
List of Tables xvii
JUNOSe 11.1.x Physical Layer Configuration Guide
Table 23: Average Data Rate for One ES2-S3 GE-20 IOA Installed with an
ES2 10G LM ..........................................................................................189
Table 24: Average Data Rate for One ES2-S3 GE-20 IOA Installed with an
ES2 10G ADV LM ..................................................................................190
Chapter 6 Managing Tunnel-Service and IPSec-Service Interfaces 215
Table 25: Sample Capacity, Configuration, and Utilization Values for
Tunnel-Service Interfaces ......................................................................224
xviii List of Tables

About the Documentation

E Series and JUNOSe Documentation and Release Notes on page xix
Audience on page xix
E Series and JUNOSe Text and Syntax Conventions on page xix
Obtaining Documentation on page xxi
Documentation Feedback on page xxi
Requesting Technical Support on page xxi

E Series and JUNOSe Documentation and Release Notes

For a list of related JUNOSe documentation, see
http://www.juniper.net/techpubs/software/index.html .
If the information in the latest release notes differs from the information in the documentation, follow the JUNOSe Release Notes.
To obtain the most current version of all Juniper Networks® technical documentation, see the product documentation page on the Juniper Networks website at
http://www.juniper.net/techpubs/.

Audience

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

E Series and JUNOSe Text and Syntax Conventions

Table 1 on page xx defines notice icons used in this documentation.
E Series and JUNOSe Documentation and Release Notes xix
JUNOSe 11.1.x Physical Layer Configuration Guide
Table 1: Notice Icons
Table 2 on page xx defines text and syntax conventions that we use throughout the E Series and JUNOSe documentation.
DescriptionMeaningIcon
Indicates important features or instructions.Informational note
Indicates a situation that might result in loss of data or hardware damage.Caution
Alerts you to the risk of personal injury or death.Warning
Alerts you to the risk of personal injury from a laser.Laser warning
Table 2: Text and Syntax Conventions
Represents commands and keywords in text.Bold text like this
Bold text like this
Fixed-width text like this
Represents text that the user must type.
Represents information as displayed on your terminals screen.
Italic text like this
Emphasizes words.
Identifies variables.
Identifies chapter, appendix, and book
names.
Plus sign (+) linking key names
keys simultaneously.
Syntax Conventions in the Command Reference Guide
ExamplesDescriptionConvention
Issue the clock source command.
Specify the keyword exp-msg.
host1(config)#traffic class low-loss1
host1#show ip ospf 2
Routing Process OSPF 2 with Router ID 5.5.0.250 Router is an Area Border Router (ABR)
There are two levels of access: user and
privileged.
clusterId, ipAddress.
Appendix A, System Specifications
Press Ctrl + b.Indicates that you must press two or more
terminal lengthRepresents keywords.Plain text like this
| (pipe symbol)
or variable to the left or to the right of this symbol. (The keyword or variable can be either optional or required.)
xx E Series and JUNOSe Text and Syntax Conventions
mask, accessListNameRepresents variables.Italic text like this
diagnostic | lineRepresents a choice to select one keyword
Table 2: Text and Syntax Conventions (continued)
About the Documentation
ExamplesDescriptionConvention
[ internal | external ]Represent optional keywords or variables.[ ] (brackets)
[ ]* (brackets and asterisk)
that can be entered more than once.
Represent required keywords or variables.{ } (braces)

Obtaining Documentation

To obtain the most current version of all Juniper Networks technical documentation, see the Technical Documentation page on the Juniper Networks Web site at
http://www.juniper.net/.
To download complete sets of technical documentation to create your own documentation CD-ROMs or DVD-ROMs, see the Offline Documentation page at
http://www.juniper.net/techpubs/resources/cdrom.html
Copies of the Management Information Bases (MIBs) for a particular software release are available for download in the software image bundle from the Juniper Networks Web site athttp://www.juniper.net/.

Documentation Feedback

[ level1 | level2 | l1 ]*Represent optional keywords or variables
{ permit | deny } { in | out }
{ clusterId | ipAddress }
We encourage you to provide feedback, comments, and suggestions so that we can improve the documentation to better meet your needs. Send your comments to
techpubs-comments@juniper.net, or fill out the documentation feedback form at
https://www.juniper.net/cgi-bin/docbugreport/. If you are using e-mail, be sure to include
the following information with your comments:
Document or topic name
URL or page number
Software release version

Requesting Technical Support

Technical product support is available through the Juniper Networks Technical Assistance Center (JTAC). If you are a customer with an active J-Care or JNASC support contract, or are covered under warranty, and need post-sales technical support, you can access our tools and resources online or open a case with JTAC.
JTAC policiesFor a complete understanding of our JTAC procedures and policies,
review the JTAC User Guide located at
http://www.juniper.net/customers/support/downloads/7100059-EN.pdf .
Obtaining Documentation xxi
JUNOSe 11.1.x Physical Layer Configuration Guide
Product warrantiesFor product warranty information, visit
http://www.juniper.net/support/warranty/ .
JTAC hours of operationThe JTAC centers have resources available 24 hours a
day, 7 days a week, 365 days a year.

Self-Help Online Tools and Resources

For quick and easy problem resolution, Juniper Networks has designed an online self-service portal called the Customer Support Center (CSC) that provides you with the following features:
Find CSC offerings: http://www.juniper.net/customers/support/
Search for known bugs: http://www2.juniper.net/kb/
Find product documentation: http://www.juniper.net/techpubs/
Find solutions and answer questions using our Knowledge Base:
http://kb.juniper.net/
Download the latest versions of software and review release notes:
http://www.juniper.net/customers/csc/software/
Search technical bulletins for relevant hardware and software notifications:
https://www.juniper.net/alerts/
Join and participate in the Juniper Networks Community Forum:
http://www.juniper.net/company/communities/
Open a case online in the CSC Case Management tool: http://www.juniper.net/cm/
To verify service entitlement by product serial number, use our Serial Number Entitlement (SNE) Tool: https://tools.juniper.net/SerialNumberEntitlementSearch/

Opening a Case with JTAC

You can open a case with JTAC on the Web or by telephone.
Use the Case Management tool in the CSC at http://www.juniper.net/cm/ .
Call 1-888-314-JTAC (1-888-314-5822 toll-free in the USA, Canada, and Mexico).
For international or direct-dial options in countries without toll-free numbers, see
http://www.juniper.net/support/requesting support.html .
xxii Requesting Technical Support
Part 1
Chapters
Configuring Channelized T3 Interfaces on page 3
Configuring T3 and E3 Interfaces on page 45
Configuring Unchannelized OCx/STMx Interfaces on page 73
Configuring Channelized OCx/STMx Interfaces on page 109
Configuring Ethernet Interfaces on page 175
Managing Tunnel-Service and IPSec-Service Interfaces on page 215
Chapters 1
JUNOSe 11.1.x Physical Layer Configuration Guide
2 Chapters
Chapter 1
Configuring Channelized T3 Interfaces
Use the procedures described in this chapter to configure channelized T3 (CT3) interfaces on E Series Broadband Services Routers.
This chapter contains the following sections:
Overview on page 3
Platform Considerations on page 5
References on page 9
Before You Configure an Interface on page 9
Configuration Tasks on page 10
Configuration Example on page 23
Testing Interfaces on page 23
Monitoring Interfaces on page 28

Overview

MDL/FDL Support
Channelized T3 interfaces are supported by the modules described in this chapter. Configuration procedures for all channelized T3 physical interfaces are identical; however, the capabilities of the modules differ. Each port on a CT3 module offers a total bidirectional rate of 43.008 Mbps.
This section describes the features of channelized T3 interfaces. For information about configuring channelized T3 interfaces over SONET/SDH, see Configuring Channelized OCx/STMx Interfaces on page 109.
Channelized T3 interfaces on some line modules support maintenance data link (MDL) messages at the T3 level and facilities data link (FDL) messages at the T1 level. For a list of the line modules that support MDL and FDL, see ERX Module Guide, Appendix A, Module Protocol Support.
You can use MDL and FDL messages to determine the status of a link and to display statistics for the remote end of a connection. MDL and FDL messages do not interfere with other data transmitted over the link.
Overview 3
JUNOSe 11.1.x Physical Layer Configuration Guide
MDL Standards
You can configure channelized T3 interfaces to send MDL messages that comply with ANSI T1.107a-1990 Standard for TelecommunicationsDigital Hierarchy – Supplement to Formats Specification (August 1990). MDL messages identify a particular link by sharing common codes for data such as the equipment identifier, line identifier, frame identifier, and unit.
FDL Standards
Similarly, you can configure T1 channels to send FDL messages that comply with either or both of the following standards:
ANSI T1.403-1989 Standard for TelecommunicationsNetwork and Customer
Installation Interfaces – DS1 Metallic Interface – Robbed-bit Signaling State Definitions (1989)
FDL messages that comply with the ANSI standard identify a particular link by sharing common codes for data such as the equipment identifier, line identifier, frame identifier, and unit.
AT&T Technical Reference 54016Requirements for Interfacing Digital Terminal
Equipment to Services Employing the Extended Superframe Format (September
1989)
FDL messages that comply with the AT&T standard identify a particular link by sharing performance data and do not use common codes for data such as the equipment identifier, line identifier, frame identifier, and unit.
Timeout of Received MDL and FDL Messages
When a line module receives an MDL or FDL message string, it stores the strings for a period of 10 seconds after the last message was received. If the line module does not receive another message of any type containing the same string within 10 seconds, it erases the local copy of the message.
Most MDL and FDL message strings are common to all three types of messages that can be transmitted: path identifications, idle signals, and test signals. Certain message strings, however, are unique to a particular message type. Table 3 on page 4 briefly describes each MDL/FDL message string and indicates, with a checkmark (), the types of messages in which it can be sent.
Table 3: MDL and FDL Message Strings and Message Types
Message String
Path MessageDescription
Idle Signal Message
Test Signal Message
4 Overview
Equipment identification codeeic
Frame identification codefic
Generator numbergenerator
Chapter 1: Configuring Channelized T3 Interfaces
Table 3: MDL and FDL Message Strings and Message Types (continued)
Message String
Path MessageDescription
Idle Signal Message
Test Signal Message
Line identification codelic
Facility identification codepfi
Equipment port numberport
Unit identification codeunit
As long as another message of any type containing the same string is received within 10 seconds, the line module retains the local copy of the message string and resets the 10-second timer for that string.
For example, if a line module receives an MDL or FDL test signal message containing an eic string, and then receives an idle signal message within 10 seconds that also contains an eic string, it retains the local copy of the most recent eic string received and resets the 10-second timer for that message. However, if 10 seconds pass without the line module receiving a path identification, test signal, or idle signal message containing an eic string, the line module erases the local copy of the eic message string.
For message strings that are unique to a particular message type, the line module must receive another message of the same type containing this string in order to retain the local copy of the string and reset the timer. For example, if the line module receives a test signal message containing a generator string and does not receive another test signal message within 10 seconds, it will erase the local copy of the generator string.
Frequency of FDL Path Messages
E Series Routers transmit FDL path identifier messages every second. This behavior complies with the ANSI T1.403 specification (see References on page 9 for more information) and is consistent with the MDL implementation for E Series Routers.
Higher-Level Protocols
See ERX Module Guide, Appendix A, Module Protocol Support for information about the higher-level protocols that channelized T3 interfaces support.

Platform Considerations

You can configure channelized T3 interfaces on the following Juniper Networks E Series Broadband Services Routers:
ERX1440 router
ERX1410 router
ERX710 router
Platform Considerations 5
JUNOSe 11.1.x Physical Layer Configuration Guide
ERX705 router
ERX310 router
NOTE: The Juniper Networks E120 and E320 Broadband Services Routers do not support configuration of channelized T3 interfaces.
For detailed information about the modules that support channelized T3 interfaces on ERX7xx models, ERX14xx models, and the ERX310 router:
See ERX Module Guide, Table 1, Module Combinations for detailed module
specifications.
See ERX Module Guide, Appendix A, Module Protocol Support for information about
the protocols and applications that channelized T3 modules support.
CT3/T3-F0 Line Modules and CT3/T3 12 I/O Modules
ERX7xx models, ERX14xx models, and the ERX310 router support the CT3/T3-F0 line module and CT3/T3 12 I/O module. The CT3/T3-F0 line module and CT3/T3 12 I/O module support both channelized and unchannelized T3 operation. You can configure a mixture of channelized and unchannelized ports on these modules. For information about configuring unchannelized T3 ports, see Configuring Channelized T3 Interfaces on page 3.
ERX14xx models support up to 12 CT3/T3-F0 line modules and 12 CT3/T3 12 I/O modules, ERX7xx models support up to 5 CT3/T3-F0 line modules and 5 CT3/T3 12 I/O modules, and the ERX310 router supports up to two CT3/T3-F0 line modules and two CT3/T3 12 I/O modules. Each CT3/T3 12 I/O module has 12 physical T3 (DS3) ports. Each port uses two SMB connectors: one for the transmit (TX) connection and one for the receive (RX) connection.
CT3/T3-F0 line modules and CT3/T3 12 I/O modules support the following in channelized mode:
28 asynchronous T1 (DS1) channels per T3 port
24 DS0 channels (64-Kbps) per T1 interface
166 DS0 channels per T3 port
Exchanging Modules
If you replace a CT3/T3 line module and a CT3/T3 I/O module with a CT3/T3-F0 line module and a CT3/T3 12 I/O module or vice versa, you must erase the configuration of the existing modules. See the slot accept command in Managing Modules in the JUNOSe System Basics Configuration Guide.
6 Platform Considerations
Interface Stack
Chapter 1: Configuring Channelized T3 Interfaces
Figure 1 on page 7 shows the stack for a channelized T3 interface. To configure a channelized T3 interface, configure a T3 controller, followed by a T1 channel, and then a fractional T1 channel. Finally, you must configure a High-Speed Data Link Control (HDLC) data channel on the interface.
Figure 1: Stack for Channelized T3 Interface
Numbering Scheme
For more information about the layers in a channelized T3 interface, see Numbering Scheme on page 7.
NOTE: For a detailed description of interface types and specifiers, see Interface Types and Specifiers in JUNOSe Command Reference Guide. For information about interfaces, see Planning Your Network in JUNOSe System Basics Configuration Guide.
This section describes how to identify each layer in a channelized T3 interface stack.
T3 Controllers
A T3 controller on a channelized T3 interface is identified using the slot/port format where:
slot—Number of the slot in which the line module resides in the chassis.
In ERX7xx models, line module slots are numbered 2-6; slots 0 and 1 are reserved for SRP modules. In ERX14xx models, line module slots are numbered 0–5 and 8–13; slots 6 and 7 are reserved for SRP modules. In an ERX310 router, line module slots are numbered 0–2; slot 0 is reserved for the SRP module.
port—Number of the port on the I/O module. On a CT3/T3 12 I/O module, ports
are numbered 0–11.
For information about installing line modules and I/O modules in ERX routers, see ERX Hardware Guide, Chapter 4, Installing Modules.
Platform Considerations 7
JUNOSe 11.1.x Physical Layer Configuration Guide
T1 Channels
A T3 line consists of 28 T1 channels (or data streams). A T1 channel is identified by its number in the range 1–28.
Each T1 channel is an aggregate of 24 DS0 timeslots, as shown in Figure 2 on page 8. To configure an entire T1 line, assign 24 timeslots to each channel.
Figure 2: T1 Channels and DS0 Timeslots on a T3 Line
Fractional T1
Fractional T1 is a portion of a T1 line. To configure fractional T1 on a channelized T3 interface, you assign a range of DS0 timeslots to a T1 channel and subchannel. A subchannel is group of timeslots. Subchannel numbers range from 1–24 and do not necessarily correspond to DS0 timeslots. The subchannel number identifies a fractional T1 channel.
For example, you might make the assignments for subchannels 1–6 as listed in Table 4 on page 8.
Table 4: Sample T1 Subchannel/Timeslot Assignments
DS0 TimeslotSubchannel
1–4, 10, 22–241
5–62
7–93
114
12–15, 20–215
16–196
To configure the subchannels listed in Table 4 on page 8, use the following command to specify the T3 controller in chassis slot 0, port 1.
8 Platform Considerations
host1(config)#controller t3 0/1
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