Juniper JUNOSE SOFTWARE 11.0.X - LINK LAYER CONFIGURATION GUIDE 4-1-2010, JUNOSe 11.0.X Configuration Manual

JUNOSe™ Software for E Series™ Broadband Services Routers

Link Layer Configuration Guide

Release 11.0.x

Juniper Networks, Inc.

1194 North Mathilda Avenue

Sunnyvale, California 94089

USA

408-745-2000

www.juniper.net

Published: 2010-01-04

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 Link Layer Configuration Guide

Writing: Krupa Chandrashekar, Subash Babu Asokan, Diane Florio, Bruce Gillham, Justine Kangas, Sarah Lesway-Ball, Helen Shaw, Brian Wesley Simmons, Fran Singer Editing: Benjamin Mann Illustration: Nathaniel Woodward Cover Design: Edmonds Design

Revision History January 2010—FRS JUNOSe 11.0.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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agreements relating to the Software, whether oral or written (including any inconsistent terms contained in a purchase order), except that the terms of a separate written agreement executed by an authorized Juniper representative and Customer shall govern to the extent such terms are inconsistent or conflict with terms contained herein. No modification to this Agreement nor any waiver of any rights hereunder shall be effective unless expressly assented to in writing by the party to be charged. If any portion of this Agreement is held invalid, the Parties agree that such invalidity shall not affect the validity of the remainder of this Agreement. This Agreement and associated documentation has been written in the English language, and the Parties agree that the English version will govern. (For Canada: Les parties aux présentés confirment leur volonté que cette convention de même que tous les documents y compris tout avis qui s'y rattaché, soient redigés en langue anglaise. (Translation: The parties confirm that this Agreement and all related documentation is and will be in the English language)).

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Abbreviated Table of Contents

About the Documentation xxvii

Part 1 Chapters

Chapter 1 Configuring ATM 3

Chapter 2 Configuring Frame Relay 107

Chapter 3 Configuring Multilink Frame Relay 133

Chapter 4 Configuring Upper-Layer Protocols over Static Ethernet Interfaces 153

Chapter 5 Configuring VLAN and S-VLAN Subinterfaces 169

Chapter 6 Configuring 802.3ad Link Aggregation and Link Redundancy 199

Chapter 7 Configuring Point-to-Point Protocol 227

Chapter 8 Configuring Multilink PPP 267

Chapter 9 Configuring Packet over SONET 313

Chapter 10 Configuring Point-to-Point Protocol over Ethernet 325

Chapter 11 Configuring Bridged IP 387

Chapter 12 Configuring Bridged Ethernet 393

Chapter 13 Configuring Transparent Bridging 417

Chapter 14 Configuring Cisco HDLC 455

Chapter 15 Configuring Dynamic Interfaces 465

Chapter 16 Configuring Dynamic Interfaces Using Bulk Configuration 573

Part 2 Index

Index 667

Abbreviated Table of Contents ■ vii

JUNOSe 11.0.x Link Layer Configuration Guide

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Table of Contents

About the Documentation xxvii

E Series and JUNOSe Documentation and Release Notes ...........................xxvii

Audience ....................................................................................................xxvii

E Series and JUNOSe Text and Syntax Conventions ...................................xxvii

Obtaining Documentation ..........................................................................xxix

Documentation Feedback ...........................................................................xxix

Requesting Technical Support .....................................................................xxix

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

Opening a Case with JTAC ....................................................................xxx

Part 1 Chapters

Chapter 1 Configuring ATM 3

Overview .........................................................................................................3

ATM Interfaces ..........................................................................................4

ATM Physical Connections ........................................................................4

ATM Virtual Connections ..........................................................................5

Virtual Channel Connection ................................................................5

Virtual Path Connection ......................................................................5

ATM SVCs .................................................................................................5

ATM Adaptation Layer ..............................................................................5

Local ATM Passthrough .............................................................................6

VCC Cell Relay Encapsulation ...................................................................6

Traffic Management ..................................................................................7

Connection Admission Control ...........................................................7

ILMI ..........................................................................................................9

VPI/VCI Address Ranges ............................................................................9

VP Tunneling ..........................................................................................10

Platform Considerations ................................................................................10

Module Requirements .............................................................................10

Interface Specifiers .................................................................................11

References ....................................................................................................11

Supported Features .......................................................................................12

Module Capabilities .................................................................................12

Virtual Channel Support ..........................................................................13

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JUNOSe 11.0.x Link Layer Configuration Guide

ATM NBMA ....................................................................................................13

ARP Table ...............................................................................................14

Operations, Administration, and Management of ATM Interfaces .................15

End-to-End and Segment Endpoints .......................................................15

Fault Management ..................................................................................15

Continuity Verification ............................................................................17

Loopback ................................................................................................18

Automatic Disabling of F5 OAM Services ................................................20

Rate Limiting for F5 OAM Cells ...............................................................21

Before You Configure ATM ............................................................................21

Configuration Tasks .......................................................................................22

Creating a Basic Configuration ......................................................................22

Setting Optional Parameters ..........................................................................24

Optional Tasks on ATM 1483 Subinterfaces ............................................26

Configuring OAM ...........................................................................................33

Configuring F4 OAM ...............................................................................33

Configuring F5 OAM ...............................................................................35

Setting a Loopback Location ID ...............................................................36

Enabling OAM Flush ...............................................................................37

Running ATM Ping ..................................................................................38

Configuring an NBMA Interface .....................................................................39

Creating an NBMA Static Map ........................................................................40

Assigning Descriptions to Interfaces ..............................................................42

Sending Interface Descriptions to AAA ..........................................................43

Assigning Descriptions to Virtual Paths ...................................................44

Exporting ATM 1483 Subinterface Descriptions ......................................44

Configuring Individual ATM PVC Parameters .................................................45

Benefits ...................................................................................................46

Creating Control PVCs .............................................................................46

Creating Data PVCs .................................................................................47

Configuring the Service Category for Data PVCs .....................................48

Configuring Encapsulation for Data PVCs ...............................................50

Configuring F5 OAM for Data PVCs ........................................................51

Configuring Inverse ARP for Data PVCs ..................................................54

Static Map Versus Inverse ARP .........................................................14

Aging ................................................................................................14

Removing Circuits ............................................................................15

How the ATM Interface Handles AIS Cells ........................................16

How the ATM Interface Handles RDI Cells ........................................16

Activation and Deactivation Cells .....................................................17

Activating CC Cell Flow ....................................................................17

Deactivating CC Cell Flow .................................................................17

After CC Cell Flow Is Enabled ...........................................................18

VC Integrity ......................................................................................18

F4 OAM Cells ....................................................................................19

ATM Ping ..........................................................................................19

How the ATM Interface Handles Loopback Cells Received ................20

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Table of Contents

Configuring ATM VC Classes ..........................................................................55

Benefits ...................................................................................................55

Precedence Levels ..................................................................................56

Precedence Levels for Static PVCs ....................................................56

Precedence Levels for Dynamic PVCs ...............................................57

Precedence Level Examples .............................................................57

Upgrade Considerations ..........................................................................57

Configuring VC Classes ...........................................................................59

Assigning VC Classes to Individual PVCs .................................................64

Assigning VC Classes to ATM Major Interfaces ........................................65

Assigning VC Classes to Static ATM 1483 Subinterfaces ..........................66

Assigning VC Classes to Base Profiles for Bulk-Configured VC

Ranges .............................................................................................67

Precedence Level Examples for Assigning VC Classes .............................67

Example 1: Explicitly Changing the Service Category .......................67

Example 2: Changing the Encapsulation Method in the VC Class .....68

Example 3: Effect of Using the atm pvc Command ..........................68

Example 4: Overriding RADIUS Values .............................................68

Configuring Dynamic ATM 1483 Subinterfaces .............................................69

Monitoring ATM ............................................................................................69

Setting Statistics Baselines ......................................................................70

Displaying Interface Rate Statistics for ATM VCs and ATM VPs ...............70

Using ATM show Commands ..................................................................74

Chapter 2 Configuring Frame Relay 107

Overview .....................................................................................................107

Framing ................................................................................................107

Error Frames ........................................................................................108

Unicast and Multicast Addressing .........................................................108

User-to-Network and Network-to-Network Interfaces ............................108

Platform Considerations ..............................................................................109

Module Requirements ...........................................................................109

Interface Specifiers ...............................................................................110

References ..................................................................................................110

Before You Configure Frame Relay ..............................................................110

Configuring Frame Relay .............................................................................111

End-to-End Fragmentation and Reassembly ................................................119

Frame Fragmentation ...........................................................................119

Frame Reassembly ...............................................................................119

Map Class .............................................................................................120

Configuring End-to-End Fragmentation .................................................120

Monitoring Frame Relay ..............................................................................123

Chapter 3 Configuring Multilink Frame Relay 133

Overview .....................................................................................................133

T1/E1 Connections ................................................................................133

MLFR Link Integrity Protocol ................................................................134

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JUNOSe 11.0.x Link Layer Configuration Guide

Interface Stacking .................................................................................135

Platform Considerations ..............................................................................135

Module Requirements ...........................................................................136

Interface Specifiers ...............................................................................136

References ..................................................................................................136

Supported MLFR Features ...........................................................................136

Unsupported MLFR Features .......................................................................137

Before You Configure MLFR ........................................................................138

Configuration Tasks .....................................................................................138

Configuration Example .........................................................................139

Configuring Frame Relay Versus MLFR .................................................139

Monitoring MLFR .........................................................................................140

Chapter 4 Configuring Upper-Layer Protocols over Static Ethernet

Interfaces 153

Upper-Layer Protocols over Static Ethernet Overview .................................153

Upper-Layer Protocols over Static Ethernet Platform Considerations ...........154

Module Requirements ...........................................................................155

Interface Specifiers ...............................................................................155

Upper-Layer Protocols over Static Ethernet References ...............................155

Configuring IP over a Static Ethernet Interface ............................................155

Configuring PPPoE over a Static Ethernet Interface .....................................156

Configuring IP and MPLS over a Static Ethernet Interface ...........................157

Configuring IP, MPLS, and PPPoE over Ethernet .........................................157

L2TP and Ethernet ......................................................................................159

Multinetting and Ethernet ............................................................................159

Monitoring Upper-Level Protocols over Ethernet .........................................159

Chapter 5 Configuring VLAN and S-VLAN Subinterfaces 169

VLAN Overview ...........................................................................................169

S-VLAN Overview ........................................................................................170

VLAN and S-VLAN Platform Considerations .................................................171

Module Requirements ...........................................................................171

Interface Specifiers ...............................................................................171

VLAN and S-VLAN References .....................................................................172

Creating a VLAN Subinterface .....................................................................172

Creating a VLAN Major Interface ...........................................................172

Configuring IP over VLAN .....................................................................173

Configuring PPPoE over VLAN ..............................................................174

Configuring MPLS over VLAN ................................................................175

Configuring IP over VLAN and PPPoE over VLAN ..................................176

Configuring an S-VLAN Subinterface ...........................................................180

Configuring an S-VLAN Subinterface .....................................................181

Configuring PPPoE over an S-VLAN ......................................................181

Configuring S-VLAN Tunnels for Layer 2 Services over MPLS ......................184

Advantages ...........................................................................................184

Interface Stacking .................................................................................185

Configuration Example .........................................................................185

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Table of Contents

S-VLAN Oversubscription ............................................................................188

Monitoring VLAN and S-VLAN Subinterfaces ...............................................188

Displaying Interface Rate Statistics for VLAN Subinterfaces ..................189

Using Ethernet show Commands ..........................................................191

Chapter 6 Configuring 802.3ad Link Aggregation and Link Redundancy 199

802.3ad Link Aggregation for Ethernet Overview ........................................199

LACP .....................................................................................................200

Higher-Level Protocols ..........................................................................200

Load Balancing and QoS .......................................................................201

Ethernet Link Aggregation and MPLS ....................................................201

802.3ad Link Aggregation Platform Considerations .....................................201

Module Requirements ...........................................................................201

Interface Specifiers ...............................................................................202

802.3ad Link Aggregation References .........................................................202

Configuring 802.3ad Link Aggregation ........................................................202

Configuring an Ethernet Physical Interface ...........................................203

Configuring a LAG Bundle .....................................................................203

Configuring IP for a LAG Bundle ...........................................................204

Configuring a VLAN Subinterface for a LAG Bundle ...............................204

Configuring a PPPoE Subinterface for a LAG Bundle .............................204

Configuring MPLS for a LAG Bundle ......................................................205

Example: Configuring an IP Interface for a LAG Bundle ...............................207

Example: Configuring a PPPoE Subinterface for a LAG Bundle ....................208

Example: Configuring a PPPoE Subinterface over a VLAN for a LAG

Bundle ..................................................................................................209

Example: Configuring MPLS for a LAG Bundle .............................................209

Example: Configuring MPLS over a VLAN for a LAG Bundle ........................210

Ethernet Link Redundancy Overview ..........................................................211

Ethernet Link Redundancy Configuration Models .................................211

Ethernet Link Redundancy Configuration Diagrams .......................212

Ethernet Link Redundancy Behavior ...........................................................215

Link Failure and Acquisition ..................................................................216

Protecting Against Physical Link Failure .........................................216

Protecting Against Virtual Link Failure ............................................216

Reverting After a Failover ...............................................................217

LACP Configuration and Member Link Behavior ...................................217

Member Link with Non-LAG Partner .....................................................218

Ethernet Link Redundancy and RSTP .............................................218

Acquiring Initial Links .....................................................................219

Detecting Failures ...........................................................................219

Failing Over ....................................................................................220

Configuring Ethernet Link Redundancy .......................................................220

Monitoring 802.3ad Link Aggregation .........................................................222

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JUNOSe 11.0.x Link Layer Configuration Guide

Chapter 7 Configuring Point-to-Point Protocol 227

Overview .....................................................................................................227

Framing ................................................................................................227

Error Frames ........................................................................................228

Link Control Protocol ............................................................................228

LCP Negotiation Parameters ...........................................................228

Validation of LCP Peer Magic Number ............................................229

B-RAS Support ......................................................................................230

Authentication ......................................................................................231

Rate Limiting for PPP Control Packets ..................................................231

Extensible Authentication Protocol .......................................................231

EAP Types ......................................................................................232

EAP Packet Retransmission ............................................................232

EAP Behavior in an L2TP Environment ..........................................233

Limitations .....................................................................................234

Performance ..................................................................................234

Remote Peer Scenarios During Negotiation of PPP Options ..................235

IPCP Lockout and Local IP Address Pool Restoration ............................236

Platform Considerations ..............................................................................237

Module Requirements ...........................................................................237

Interface Specifiers ...............................................................................237

References ..................................................................................................238

Before You Configure PPP ...........................................................................239

Configuration Tasks .....................................................................................239

Optional Configuration Tasks ......................................................................242

Configuring PPP Authentication ............................................................247

PPP Accounting Statistics ............................................................................249

Monitoring PPP Interfaces ...........................................................................250

Troubleshooting ..........................................................................................264

Chapter 8 Configuring Multilink PPP 267

Overview .....................................................................................................267

Platform Considerations ..............................................................................270

References ..................................................................................................271

Supported MLPPP Features .........................................................................272

Unsupported MLPPP Features .....................................................................276

Before You Configure Static MLPPP .............................................................276

Configuring Static MLPPP ............................................................................276

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Application ...........................................................................................268

MLPPP LCP Extensions .........................................................................268

MLPPP Link Selection ...........................................................................269

Module Requirements ...........................................................................271

Interface Specifiers ...............................................................................271

Configuration Example .........................................................................278

Contextual Command Differences ........................................................278

Configuring Authentication ...................................................................279

Configuring Other PPP Attributes ..........................................................281

Table of Contents

Configuring Dynamic MLPPP ......................................................................287

Configuring MLPPP Fragmentation and Reassembly ...................................288

Overview ..............................................................................................288

Application .....................................................................................289

Supported Configurations ...............................................................289

Module Requirements ....................................................................289

Link Configuration Parameters .......................................................289

Bundle Validation and Configuration Guidelines .............................290

Bundle Validation Failure ................................................................291

Recovering from Bundle Validation Failure .....................................291

Configuring Fragmentation and Reassembly for Static MLPPP ..............291

Static MLPPP over ATM 1483 Example ..........................................292

Configuring Fragmentation and Reassembly for Dynamic MLPPP ........293

Dynamic MLPPP over PPPoE Example ...........................................294

Dynamic MLPPP over L2TP Example .............................................294

Configuring Fragmentation and Reassembly for MLPPP Bundles ..........297

Monitoring MLPPP .......................................................................................297

Chapter 9 Configuring Packet over SONET 313

Overview .....................................................................................................313

POS Features ........................................................................................313

SONET/SDH ..........................................................................................314

Platform Considerations ..............................................................................314

Module Requirements ...........................................................................315

Interface Specifiers ...............................................................................315

References ..................................................................................................315

Before You Configure POS ...........................................................................316

Configuration Tasks .....................................................................................316

Monitoring POS ...........................................................................................321

Chapter 10 Configuring Point-to-Point Protocol over Ethernet 325

Overview .....................................................................................................325

PPPoE Stages ........................................................................................326

Discovery .......................................................................................326

Session ...........................................................................................327

PPPoE Service Name Tables .................................................................327

Features .........................................................................................328

Table Structure ...............................................................................328

Enabling the Service Name Table for Use .......................................329

Using the PPPoE Remote Circuit ID to Identify Subscribers ..................329

Application .....................................................................................329

PPPoE Remote Circuit ID Capture ..................................................330

PPPoE Remote Circuit ID Format ...................................................330

Use by RADIUS or L2TP .................................................................333

System Event Log ...........................................................................334

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JUNOSe 11.0.x Link Layer Configuration Guide

PPPoE MTU Configuration ....................................................................334

Platform Considerations ..............................................................................334

Module Requirements ...........................................................................335

Interface Specifiers ...............................................................................335

References ..................................................................................................336

Before You Configure PPPoE .......................................................................336

Configuring PPPoE over ATM ......................................................................336

Configuring PPPoE for Ethernet Modules .....................................................343

PPPoE Interface and Subinterface Limits ..............................................343

Configuring IPv4 and IPv6 over PPPoE with VLAN ................................343

Configuring PPPoE Without VLANs .......................................................347

Configuring PADM Messages .......................................................................351

Configuring PADN Messages .......................................................................353

Configuring PPPoE Service Name Tables .....................................................354

Creating and Populating PPPoE Service Name Tables ...........................354

Enabling PPPoE Service Name Tables for Use with Static Interfaces .....357

Enabling PPPoE Service Name Tables for Use with Dynamic

Configuring PADS Packet Content ...............................................................362

Configuring PPPoE Remote Circuit ID Capture ............................................363

Monitoring PPPoE .......................................................................................369

Troubleshooting ..........................................................................................384

PPPoE over ATM Configurations .....................................................357

PPPoE over Ethernet Configurations ..............................................359

Interfaces .......................................................................................360

Chapter 11 Configuring Bridged IP 387

Overview .....................................................................................................387

Proxy ARP ............................................................................................387

DHCP ....................................................................................................388

Platform Considerations ..............................................................................388

Module Requirements ...........................................................................388

Interface Specifiers ...............................................................................389

References ..................................................................................................389

Before You Configure Bridged IP .................................................................389

Configuring Bridged IP ................................................................................390

Chapter 12 Configuring Bridged Ethernet 393

Overview .....................................................................................................393

Bridged Ethernet Application ................................................................394

Assigning MAC Addresses .....................................................................394

VLAN and S-VLAN Configurations .........................................................395

Platform Considerations ..............................................................................396

Module Requirements ...........................................................................396

Interface Specifiers ...............................................................................397

References ..................................................................................................397

Configuring Bridged Ethernet ......................................................................397

Configuring IP with PPPoE Terminated at the Router ............................397

Alternative Configuration ......................................................................402

xvi ■ Table of Contents

Table of Contents

Configuring VLANs over Bridged Ethernet ...................................................403

Configuring VLAN Subinterfaces over Bridged Ethernet ........................403

Configuring Higher-Level Protocols over VLANs ....................................404

Configuring IP over VLAN ...............................................................404

Configuring PPPoE over VLAN ........................................................404

Configuring MPLS over VLAN .........................................................405

Configuring S-VLANs over Bridged Ethernet ................................................408

Configuring S-VLAN Subinterfaces over Bridged Ethernet .....................408

Configuring Higher-Level Protocols over S-VLANs .................................410

Configuring the MTU Size for Bridged Ethernet ...........................................410

Monitoring Bridged Ethernet .......................................................................411

Chapter 13 Configuring Transparent Bridging 417

Overview .....................................................................................................417

How Transparent Bridging Works .........................................................417

Bridge Groups and Bridge Group Interfaces ..........................................418

Bridge Interface Types and Supported Configurations ...........................419

Subscriber Policies ................................................................................420

Concurrent Routing and Bridging ..........................................................421

Transparent Bridging and VPLS ............................................................422

Unsupported Features ...........................................................................422

Platform Considerations ..............................................................................422

Module Requirements ...........................................................................422

Interface Specifiers ...............................................................................423

References ..................................................................................................423

Before You Configure Transparent Bridging ................................................423

Configuration Tasks .....................................................................................424

Creating Bridge Groups .........................................................................425

Configuring Optional Bridge Group Attributes .......................................426

Configuring Bridge Group Interfaces .....................................................428

Configuring Subscriber Policies .............................................................430

Enabling Concurrent Routing and Bridging ...........................................436

Configuring Explicit Routing .................................................................436

Configuration Examples ..............................................................................438

Example 1: Bridging with Bridged Ethernet ..........................................438

Example 2: Bridging with VLANs ..........................................................439

Monitoring Transparent Bridging .................................................................440

Setting Statistics Baselines ....................................................................441

Removing Dynamic MAC Address Entries ............................................442

Monitoring Bridge Groups .....................................................................443

Monitoring Bridge Interfaces .................................................................450

Monitoring Subscriber Policies ..............................................................452

Chapter 14 Configuring Cisco HDLC 455

Overview .....................................................................................................455

Framing ................................................................................................455

Error Frames ........................................................................................456

Table of Contents ■ xvii

JUNOSe 11.0.x Link Layer Configuration Guide

SLARP Keepalive ...................................................................................456

Platform Considerations ..............................................................................456

Module Requirements ...........................................................................456

Interface Specifiers ...............................................................................457

Before You Configure Cisco HDLC ...............................................................457

Configuration Tasks .....................................................................................457

Optional Tasks ......................................................................................458

Configuration Example .........................................................................460

Monitoring Cisco HDLC ...............................................................................461

Chapter 15 Configuring Dynamic Interfaces 465

Overview .....................................................................................................465

Autodetection .......................................................................................466

Types of Dynamic Interfaces ................................................................466

Upper-Layer Dynamic Interface Configurations ....................................467

Profiles .................................................................................................468

RADIUS Authentication .........................................................................468

ATM Oversubscription for Dynamic Interfaces .....................................469

How Oversubscription Works .........................................................469

Static ATM 1483 Subinterfaces .......................................................469

Bulk-Configured VC Ranges ............................................................470

Combination of Static ATM 1483 Subinterfaces and Bulk-Configured

VC Ranges ...............................................................................470

Ethernet Oversubscription for Dynamic Interfaces ...............................471

Platform Considerations ..............................................................................471

Module Requirements ...........................................................................471

Interface Specifiers ...............................................................................471

References ..................................................................................................472

About Configuring Dynamic Interfaces over Static ATM ..............................472

About Configuring RADIUS for Dynamic Interfaces ...............................473

subscriber Command .....................................................................473

Authenticating Subscribers on Dynamic Bridged Ethernet over Static

ATM Interfaces .........................................................................473

Placing Dynamic IP Routes in the Routing Table ............................475

auto-configure Command .....................................................................475

Encapsulation Type Lockout ...........................................................475

atm pvc Command ...............................................................................478

Configuring PPP and PPPoE Dynamic Interfaces over Static ATM ...............478

Configuring a PPP or PPPoE Dynamic Interface ....................................479

Terminating Stale PPPoA Subscribers and Restarting LCP

Negotiations ...................................................................................483

Configuring PPPoE Dynamic Interfaces over PPPoE Static Interfaces ..........484

Configuring Dynamic PPPoE over Static PPPoE with ATM Interface

Columns .........................................................................................484

Configuring Dynamic PPPoE over Static PPPoE with Ethernet Interface

Columns .........................................................................................485

Configuring Dynamic PPPoE over Static PPPoE with Ethernet and VLAN

Interface Columns ..........................................................................486

Configuring IPv4 and IPv6 over Static and Dynamic PPPoE ..................488

xviii ■ Table of Contents

Table of Contents

Configuring Dynamic PPPoE over Static PPPoE with Ethernet and S-VLAN

Interface Columns ..........................................................................492

S-VLAN Oversubscription ...............................................................494

Configuring Encapsulation Type Lockout for PPPoE Clients ..................498

Differences from Lockout Configuration for PPPoE over Static

ATM .........................................................................................498

Configuration Tasks ........................................................................499

Configuring and Verifying Lockout for PPPoE Clients .....................499

Clearing the Lockout Condition for a PPPoE Client .........................501

Configuring IPoA Dynamic Interfaces ..........................................................503

Configuring a Dynamic IPoA Interface ..................................................504

Configuring Bridged Ethernet Dynamic Interfaces .......................................507

Configuring a Dynamic Bridged Ethernet Interface ...............................508

Configuring Subscriber Management for IP Subscribers on Dynamic

Bridged Ethernet Interfaces ............................................................511

Configuration Example Using subscriber Command .......................511

Equivalent Configuration Example Using IP Subscriber

Management ............................................................................512

Configuring a Dynamic Interface from a Profile ..........................................513

Profile Considerations ...........................................................................513

Profile Characteristics ...........................................................................514

Bridged Ethernet Characteristics ....................................................514

IP Characteristics ............................................................................514

IPv6 Characteristics ........................................................................515

L2TP Characteristics .......................................................................516

MLPPP and PPP Characteristics ......................................................516

PPPoE Characteristics .....................................................................517

VLAN Characteristics ......................................................................517

Working with Profiles ...........................................................................518

Configuring a Profile .............................................................................518

Assigning a Profile to an Interface .........................................................543

Profile Configuration Examples .............................................................546

Scripts and Macros ......................................................................................547

Monitoring Upper-Layer Dynamic Interfaces and Profiles ............................548

Troubleshooting PPP and PPPoE Dynamic Interfaces ..................................568

Chapter 16 Configuring Dynamic Interfaces Using Bulk Configuration 573

Overview .....................................................................................................573

Platform Considerations ..............................................................................577

References ..................................................................................................578

Bulk Dynamic Interface Configurations .................................................574

Profiles .................................................................................................574

ATM Oversubscription for Bulk-Configured VC Ranges .........................575

Bulk-Configured VC Ranges ............................................................575

Combination of Static ATM 1483 Subinterfaces and Bulk-Configured

VC Ranges ...............................................................................576

Module Requirements ...........................................................................577

Interface Specifiers ...............................................................................577

Table of Contents ■ xix

JUNOSe 11.0.x Link Layer Configuration Guide

Configuring ATM 1483 Dynamic Subinterfaces ...........................................578

About Configuring Dynamic ATM 1483 Subinterfaces ..........................579

Configuring a Dynamic ATM 1483 Subinterface ...................................587

Configuring Overriding Profile Assignments .........................................596

Changing VC Subranges ........................................................................601

Configuring Static ATM Interfaces Within VC Subranges .......................606

Configuring VLAN Dynamic Subinterfaces ...................................................608

About Configuring Dynamic VLAN Subinterfaces ..................................610

Configuring a Dynamic VLAN Subinterface ...........................................617

Configuring Dynamic VLAN Subinterfaces Based on Agent Circuit

Overview and Benefits ...................................................................579

ATM 1483 Base Profiles ..................................................................580

Nested Profile Assignments ............................................................580

Additional Profile Characteristics for Upper Interfaces ....................581

Bulk Configuration of VC Ranges ....................................................581

Bulk Configuration and VC Classes .................................................582

Bulk Configuration and CAC ...........................................................583

Dynamic Interface Creation ............................................................583

Overriding Base Profile Assignments ..............................................584

Changing VC Subranges .................................................................584

Static ATM Interfaces Within VC Subranges ....................................584

Terminating Stale PPPoA Subscribers and Restarting LCP

Negotiations .............................................................................585

Authenticating Subscribers on Dynamic Bridged Ethernet over

Dynamic ATM Interfaces ..........................................................586

Assigning an Overriding Profile to an ATM PVC .............................596

Removing an Overriding Profile Assignment from an ATM PVC .....598

Removing Overriding Profile Assignments from a VC Range or

VC Subrange ............................................................................598

Adding VC Subranges .....................................................................601

Removing VC Subranges ................................................................602

Modifying VC Subranges ................................................................602

Merging VC Subranges ...................................................................603

Changing the Administrative State of VC Subranges .......................604

Creating Static ATM Interfaces Within VC Subranges .....................606

Creating VC Subranges That Include Static ATM Interfaces .............607

Overview and Benefits ...................................................................610

VLAN Base Profiles .........................................................................611

Nested Profile Assignments ............................................................612

Additional Profile Characteristics for Upper Interfaces ....................613

Bulk Configuration of VLAN Ranges ................................................613

Bulk Configuration of VLAN Ranges Using Agent-Circuit-Identifier

Information ..............................................................................614

Dynamic Interface Creation ............................................................615

Overriding Base Profile Assignments ..............................................616

Changing VLAN Subranges .............................................................616

Static VLAN Subinterfaces Within VLAN Subranges ........................617

Identifier Information .....................................................................619

xx ■ Table of Contents

Table of Contents

Configuring Overriding Profile Assignments for VLAN Major

Interfaces .......................................................................................620

Removing an Overriding Profile Assignment from a VLAN .............621

Removing Overriding Profile Assignments from a VLAN Range or

VLAN Subrange ........................................................................622

Changing VLAN Subranges ....................................................................630

Adding VLAN Subranges .................................................................631

Removing VLAN Subranges ............................................................631

Modifying VLAN Subranges ............................................................632

Merging VLAN Subranges ...............................................................633

Changing the Administrative State of VLAN Subranges ..................634

Configuring Static VLAN Subinterfaces Within VLAN Subranges ...........636

Creating Static VLAN Subinterfaces Within VLAN Subranges ..........636

Creating VLAN Subranges That Include Static VLAN

Subinterfaces ...........................................................................637

Monitoring Dynamic Interfaces and Profiles ................................................639

Part 2 Index

Index ...........................................................................................................667

Table of Contents ■ xxi

JUNOSe 11.0.x Link Layer Configuration Guide

xxii ■ Table of Contents

List of Figures

Part 1 Chapters

Chapter 1 Configuring ATM 3

Figure 1: ATM Interface Column ......................................................................4

Figure 2: NBMA Interface Stack .....................................................................14

Figure 3: Configuring an ATM Interface, Subinterface, and PVC ....................23

Chapter 2 Configuring Frame Relay 107

Figure 4: Interconnection and Relationship of NNIs and Subnetworks ........109

Chapter 3 Configuring Multilink Frame Relay 133

Figure 5: MLFR Aggregation of T1 Lines into a Single Bundle ......................134

Figure 6: Terminating the Bundle at an MLFR Bridge ..................................134

Figure 7: Structure of MLFR .........................................................................135

Chapter 4 Configuring Upper-Layer Protocols over Static Ethernet Interfaces 153

Figure 8: Multiplexing Multiple Protocols over a Single Physical Link ..........154

Figure 9: Example of IP over Ethernet Stacking Configuration Procedure ....156

Figure 10: Example of PPPoE Stacking Configuration Procedure .................157

Figure 11: Example of IP and MPLS Stacking Configuration Procedure .......157

Figure 12: Example of IP, MPLS, and PPPoE Stacking Configuration

Procedure .............................................................................................158

Chapter 5 Configuring VLAN and S-VLAN Subinterfaces 169

Figure 13: Use of VLANs to Multiplex Different Protocols over a Single Physical

Link ......................................................................................................170

Figure 14: Example of IP/VLAN/Fast Ethernet Stacking Configuration

Procedure .............................................................................................174

Figure 15: Example of PPPoE/VLAN/Fast Ethernet Stacking Configuration

Procedure .............................................................................................175

Figure 16: Example of MPLS/VLAN/Fast Ethernet Stacking Configuration

Procedure .............................................................................................176

Figure 17: Example of PPPoE over VLAN with IP over VLAN Stacking

Configuration Procedure .......................................................................178

Figure 18: Example of PPPoE over S-VLAN Stacking Configuration

Procedure .............................................................................................182

Figure 19: S-VLAN Tunnels for Ethernet Layer 2 Services over MPLS ..........185

Chapter 6 Configuring 802.3ad Link Aggregation and Link Redundancy 199

Figure 20: Interface Stack for 802.3ad Link Aggregation .............................200

Figure 21: Ethernet Link Redundancy Configuration Models .......................212

Figure 22: GE-2 Line Module Using Physical Port Redundancy ....................213

Figure 23: Single-Homed GE-2 Line Module Configuration ..........................213

Figure 24: Single-Homed FE-8 Line Module Configuration (1:N) ..................213

Figure 25: FE-8 Line Module with 4 Redundant Ethernet Links (1:1) ...........214

Figure 26: Single-Homed GE-4 IOA Configuration (1:4) ...............................214

List of Figures ■ xxiii

JUNOSe 11.0.x Link Layer Configuration Guide

Figure 27: GE-8 IOA Configuration Across IOAs (1:N) ..................................215

Figure 28: Dual-Homed Configuration (1:1) .................................................215

Figure 29: Dual-Homed Heterogeneous Configuration in an RSTP

Network ................................................................................................219

Chapter 7 Configuring Point-to-Point Protocol 227

Figure 30: Authentication with EAP .............................................................231

Chapter 8 Configuring Multilink PPP 267

Figure 31: MLPPP Aggregation of T1 Lines into a Single Bundle ..................268

Figure 32: Structure of MLPPP .....................................................................268

Chapter 10 Configuring Point-to-Point Protocol over Ethernet 325

Figure 33: PPPoE over ATM .........................................................................326

Figure 34: Example of PPPoE over ATM Stacking ........................................339

Figure 35: Example of Configuring IPv4 and IPv6 over PPPoE ....................344

Figure 36: Example of PPPoE Stacking ........................................................348

Chapter 12 Configuring Bridged Ethernet 393

Figure 37: Bridged Ethernet Topology, Router Terminating and Routing

Traffic ...................................................................................................394

Figure 38: Interface Stacking for VLANs over Bridged Ethernet ...................395

Chapter 13 Configuring Transparent Bridging 417

Figure 39: Bridge Group with Fast Ethernet and Gigabit Ethernet Bridge

Interfaces ..............................................................................................419

Chapter 15 Configuring Dynamic Interfaces 465

Figure 40: Configuring an ATM 1483 Interface to Support Dynamic

Interfaces ..............................................................................................472

Figure 41: Dynamic PPP Interface Columns ................................................479

Figure 42: Dynamic PPPoE Interface Columns ............................................479

Figure 43: Dynamic PPPoE over Static PPPoE with ATM Interface

Columns ...............................................................................................484

Figure 44: Dynamic PPPoE over Static PPPoE with Non-VLAN Interface

Columns ...............................................................................................486

Figure 45: Dynamic PPPoE over Static PPPoE with VLAN Interface

Columns ...............................................................................................487

Figure 46: IPv4 and IPv6 Interface Columns over Static and Dynamic

PPPoE ...................................................................................................488

Figure 47: Dynamic PPPoE over Static PPPoE with S-VLAN Interface

Columns ...............................................................................................493

Figure 48: Dynamic IPoA over Static ATM 1483 Interface Columns ............503

Figure 49: Dynamic Bridged Ethernet over Static ATM 1483 Interface

Columns ...............................................................................................508

Figure 50: Creating and Configuring a Profile ..............................................518

Figure 51: Assigning a Profile to a Static Interface .......................................518

Chapter 16 Configuring Dynamic Interfaces Using Bulk Configuration 573

Figure 52: Dynamic Interface Columns over Dynamic ATM 1483

Subinterfaces ........................................................................................579

Figure 53: Dynamic Interface Columns over Dynamic VLAN

Subinterfaces ........................................................................................609

Figure 54: Dynamic IP and PPPoE over Single Dynamic VLAN

Subinterface ..........................................................................................609

Figure 55: Dynamic VLAN Subinterfaces for Subscribers .............................611

xxiv ■ List of Figures

List of Tables

About the Documentation xxvii

Table 1: Notice Icons ................................................................................xxviii

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

Part 1 Chapters

Chapter 1 Configuring ATM 3

Table 3: Scheduling Priorities for Traffic Classes ..............................................7

Table 4: Traffic Parameters Used to Compute Bandwidth ................................8

Table 5: ATM Capabilities on Line Modules and I/O Modules .........................12

Table 6: Handling of F4 and F5 Loopback Cells Received ..............................20

Table 7: F5 OAM Configuration Tasks and Associated Commands ................51

Table 8: Commands to Configure VC Class Attributes ...................................59

Chapter 3 Configuring Multilink Frame Relay 133

Table 9: LIP Messages and Functions ..........................................................134

Chapter 6 Configuring 802.3ad Link Aggregation and Link Redundancy 199

Table 10: Behavior of Member Links Using Local and Remote LACP

Modes ...................................................................................................218

Chapter 7 Configuring Point-to-Point Protocol 227

Table 11: Supported EAP Types ..................................................................232

Chapter 8 Configuring Multilink PPP 267

Table 12: Supported Configurations for MLPPP Fragmentation and

Reassembly ..........................................................................................289

Chapter 9 Configuring Packet over SONET 313

Table 13: Most Common SONET/SDH Implementations ..............................314

Chapter 10 Configuring Point-to-Point Protocol over Ethernet 325

Table 14: Sample PPPoE Service Name Table .............................................328

Table 15: Configuring Nondefault Formats for the PPPoE Remote Circuit

ID .........................................................................................................330

Table 16: Interface Specifier Format Examples for dsl-forum-1 Keyword ....332

Table 17: Default PPPoE Service Name Table ..............................................354

Table 18: PPPoE Service Name Table with Entries ......................................355

Chapter 11 Configuring Bridged IP 387

Table 19: Prerequisite Tasks for Configuring Bridged IP ..............................390

Chapter 13 Configuring Transparent Bridging 417

Table 20: Sample Bridge Group Forwarding Table .......................................419

Table 21: Default Subscriber Policies for Bridge Group Interfaces ................420

Table 22: Prerequisite Tasks for Configuring Transparent Bridging .............424

Chapter 15 Configuring Dynamic Interfaces 465

List of Tables ■ xxv

JUNOSe 11.0.x Link Layer Configuration Guide

Table 23: Differences in Lockout Operation for Dynamic PPPoE

Configurations ......................................................................................499

xxvi ■ List of Tables

About the Documentation

■ E Series and JUNOSe Documentation and Release Notes on page xxvii

■ Audience on page xxvii

■ E Series and JUNOSe Text and Syntax Conventions on page xxvii

■ Obtaining Documentation on page xxix

■ Documentation Feedback on page xxix

■ Requesting Technical Support on page xxix

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 xxviii defines notice icons used in this documentation.

E Series and JUNOSe Documentation and Release Notes ■ xxvii

JUNOSe 11.0.x Link Layer Configuration Guide

Table 1: Notice Icons

Table 2 on page xxviii 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 terminal’s 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)

xxviii ■ E Series and JUNOSe Text and Syntax Conventions

mask, accessListNameRepresents variables.Italic text like this

diagnostic | lineRepresents a choice to select one keyword or variable to the left or to the right of this symbol. (The keyword or variable can be either optional or required.)

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 products 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 CD-ROM and DVD-ROM Documentation page at

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

Copies of the Management Information Bases (MIBs) available in a software release are included on the software CDs and at http://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

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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 policies—For 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 ■ xxix

JUNOSe 11.0.x Link Layer Configuration Guide

■ 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/

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Open a case online in the CSC Case Management tool: http://www.juniper.net/cm/

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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).

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xxx ■ Requesting Technical Support

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