Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - LINK LAYER CONFIGURATION GUIDE 2010-10-13, JUNOSE 11.3 Configuration Manual

JunosE™ Software for E Series™ Broadband Services Routers

Link Layer Configuration Guide

Release

11.3.x

Published: 2010-10-13

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

Juniper Networks, Junos, Steel-Belted Radius, NetScreen, and ScreenOS are registered trademarks of Juniper Networks, Inc. in the United States and other countries. The Juniper Networks Logo, the Junos logo, and JunosE are trademarks of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners.

Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, modify, transfer, or otherwise revise this publication without notice.

Products made or sold by Juniper Networks or components thereof might be covered by one or more of the following patents that are owned by or licensed to Juniper Networks: U.S. Patent Nos. 5,473,599, 5,905,725, 5,909,440, 6,192,051, 6,333,650, 6,359,479, 6,406,312, 6,429,706, 6,459,579, 6,493,347, 6,538,518, 6,538,899, 6,552,918, 6,567,902, 6,578,186, and 6,590,785.

JunosE™ Software for E Series™ Broadband Services Routers Link Layer Configuration Guide

Writing: Krupa Chandrashekar,Subash BabuAsokan, Pallavi Madhusudhan, Diane Florio, BruceGillham, Justine Kangas, Sarah Lesway-Ball, Helen Shaw, Brian Wesley Simmons, Fran Singer Editing: Benjamin Mann Illustration: Nathaniel Woodward Cover Design: Edmonds Design

Revision History October 2010—FRS JunosE 11.3.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 OS has no known time-related limitations through the year 2038. However, the NTP application is known to have some difficulty in the year 2036.

END USER LICENSE AGREEMENT

READ THIS END USER LICENSE AGREEMENT (“AGREEMENT”) BEFORE DOWNLOADING, INSTALLING, OR USING THE SOFTWARE.

BY DOWNLOADING, INSTALLING, OR USING THE SOFTWARE OR OTHERWISE EXPRESSING YOUR AGREEMENT TO THE TERMS CONTAINED HEREIN, YOU (AS CUSTOMER OR IF YOU ARE NOT THE CUSTOMER, AS A REPRESENTATIVE/AGENT AUTHORIZED TO BIND THE CUSTOMER) CONSENT TO BE BOUND BY THISAGREEMENT. IF YOU DONOT OR CANNOT AGREETO THE TERMS CONTAINED HEREIN, THEN (A) DO NOT DOWNLOAD, INSTALL, OR USE THE SOFTWARE, AND (B) YOU MAY CONTACT JUNIPER NETWORKS REGARDING LICENSE TERMS.

1. The Parties. The parties to this Agreement are (i) Juniper Networks, Inc. (if the Customer’s principal office is located in the Americas) or Juniper Networks(Cayman)Limited(if theCustomer’s principaloffice is locatedoutside the Americas) (suchapplicable entitybeing referred to herein as“Juniper”), and (ii)the personor organization that originally purchased fromJuniper or an authorized Juniperreseller the applicable license(s) for use of the Software (“Customer”) (collectively, the “Parties”).

2. The Software. In this Agreement, “Software” means the program modules and features of the Juniper or Juniper-supplied software, for which Customer has paid the applicable license or support fees to Juniper or an authorized Juniper reseller, or which was embedded by Juniper in equipment which Customer purchased from Juniper or an authorized Juniper reseller. “Software” also includes updates, upgrades and new releases of such software. “Embedded Software” means Software which Juniper has embedded in or loaded onto the Juniper equipment and any updates, upgrades, additions or replacements which are subsequently embedded in or loaded onto the equipment.

3. License Grant. Subject to paymentof the applicable fees and the limitationsand restrictionsset forth herein,Juniper grantsto Customer a non-exclusive and non-transferable license, without right to sublicense, to use the Software, in executable form only, subject to the following use restrictions:

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

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

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

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

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

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

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

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

5. Audit. Customer shall maintain accurate records as necessary to verify compliance with this Agreement. Upon request by Juniper, Customer shall furnish such records to Juniper and certify its compliance with this Agreement.

6. Confidentiality. The Parties agree that aspects of the Software and associated documentation are the confidential property of Juniper. As such, Customer shall exercise all reasonable commercial efforts to maintain the Software and associated documentation in confidence, which at a minimum includes restricting access to the Software to Customer employees and contractors having a need to use the Software for Customer’s internal business purposes.

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

8. Warranty, Limitation of Liability, Disclaimer of Warranty. The warranty applicable to the Software shall be as set forth in the warranty statementthat accompaniesthe Software (the “Warranty Statement”). Nothingin this Agreementshall give risetoany obligation to support the Software. Support services may be purchased separately. Any such support shall be governed by a separate, written support services agreement. TO THE MAXIMUM EXTENT PERMITTED BY LAW, JUNIPER SHALL NOT BE LIABLE FOR ANY LOST PROFITS, LOSS OF DATA, OR COSTS ORPROCUREMENT OFSUBSTITUTE GOODSOR SERVICES,OR FORANYSPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES ARISING OUTOF THIS AGREEMENT,THE SOFTWARE,OR ANY JUNIPEROR JUNIPER-SUPPLIED SOFTWARE. IN NOEVENT SHALL JUNIPER BE LIABLE FOR DAMAGES ARISING FROM UNAUTHORIZED OR IMPROPER USE OF ANY JUNIPER OR JUNIPER-SUPPLIED SOFTWARE. EXCEPT AS EXPRESSLY PROVIDED IN THE WARRANTY STATEMENT TO THE EXTENT PERMITTED BY LAW, JUNIPER DISCLAIMS ANY AND ALL WARRANTIES IN AND TO THE SOFTWARE (WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE), INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NONINFRINGEMENT. IN NO EVENT DOES JUNIPER WARRANT THAT THE SOFTWARE, OR ANY EQUIPMENT OR NETWORK RUNNING THE SOFTWARE, WILL OPERATE WITHOUT ERROR OR INTERRUPTION, OR WILL BE FREE OF VULNERABILITY TO INTRUSION OR ATTACK. In no event shall Juniper’s or its suppliers’ or licensors’ liability to Customer, whether in contract, tort (including negligence), breach of warranty, or otherwise, exceed the price paid by Customer for the Software that gave rise to the claim, or if the Software is embedded in another Juniper product, the price paid by Customer for such other product. Customer acknowledges and agrees that Juniper has set its prices and entered into this Agreement in reliance upon the disclaimers of warranty and the limitations of liability set forth herein, that the same reflect an allocation of risk between the Parties (including the risk that a contract remedy may fail of its essential purpose and cause consequential loss), and that the same form an essential basis of the bargain between the Parties.

9. Termination. Any breach of this Agreement or failure by Customer to pay any applicable fees due shall result in automatic termination of the license granted herein. Upon such termination, Customer shall destroy or return to Juniper all copies of the Software and related documentation in Customer’s possession or control.

10. Taxes. All license fees payable under this agreement are exclusive of tax. Customer shall be responsible for paying Taxes arising from the purchase of the license, or importation or use of the Software. If applicable, valid exemption documentation for each taxing jurisdiction shall be provided to Juniper prior to invoicing, and Customer shall promptly notify Juniper if their exemption is revoked or modified. All payments made by Customer shall be net of any applicable withholding tax. Customer will provide reasonable assistance to Juniper in connection with such withholding taxes by promptly: providing Juniper with valid tax receipts and other required documentation showing Customer’s payment of any withholding taxes; completing appropriate applications that would reduce the amount of withholding tax to be paid; and notifying and assisting Juniper in any audit or tax proceeding related to transactions hereunder. Customer shall comply with all applicable tax laws and regulations, and Customer will promptly pay or reimburse Juniper for all costs and damages related to any liability incurred by Juniper as a result of Customer’s non-compliance or delay with its responsibilities herein. Customer’s obligations under this Section shall survive termination or expiration of this Agreement.

11. Export. Customer agrees to comply with all applicable export laws and restrictions and regulations of any United States and any applicable foreign agency or authority, and not to export or re-export the Software or any direct product thereof in violation of any such restrictions, laws or regulations, or without all necessary approvals. Customer shall be liable for any such violations. The version of the Software supplied to Customer may contain encryption or other capabilities restricting Customer’s ability to export the Software without an export license.

12. Commercial Computer Software. The Software is “commercial computer software” and is provided with restricted rights. Use, duplication, or disclosure by the United States government is subject to restrictions set forth in this Agreement and as provided in DFARS

227.7201 through 227.7202-4, FAR 12.212, FAR 27.405(b)(2), FAR 52.227-19, or FAR 52.227-14(ALT III) as applicable.

13. Interface Information. To the extent required by applicable law, and at Customer's written request, Juniper shall provide Customer with the interface information needed to achieve interoperability between the Software and another independently created program, on payment of applicable fee, if any. Customer shall observe strict obligations of confidentiality with respect to such information and shall use such information in compliance with any applicable terms and conditions upon which Juniper makes such information available.

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

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

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

Abbreviated Table of Contents

About the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxix

Part 1 Chapters

Chapter 1 Configuring ATM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Chapter 2 Configuring Frame Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Chapter 3 Configuring Multilink Frame Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Chapter 4 Configuring Upper-Layer Protocols over Static Ethernet Interfaces . . . . . . 151

Chapter 5 Configuring VLAN and S-VLAN Subinterfaces . . . . . . . . . . . . . . . . . . . . . . . . 167

Chapter 6 Configuring 802.3ad Link Aggregation and Link Redundancy . . . . . . . . . . 197

Chapter 7 Configuring IEEE 802.3ah OAM Link-Fault Management . . . . . . . . . . . . . . 223

Chapter 8 Configuring Point-to-Point Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259

Chapter 9 Configuring Multilink PPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299

Chapter 10 Configuring Multiclass Multilink PPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345

Chapter 11 Configuring Packet over SONET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

Chapter 12 Configuring Point-to-Point Protocol over Ethernet . . . . . . . . . . . . . . . . . . . . 371

Chapter 13 Configuring Bridged IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437

Chapter 14 Configuring Bridged Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443

Chapter 15 Configuring Transparent Bridging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 465

Chapter 16 Configuring Cisco HDLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 503

Chapter 17 Configuring Dynamic Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 511

Chapter 18 Configuring Dynamic Interfaces Using Bulk Configuration . . . . . . . . . . . . . 619

Part 2 Index

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 709

JunosE 11.3.x Link Layer Configuration Guide

Table of Contents

About the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxix

E Series and JunosE Documentation and Release Notes . . . . . . . . . . . . . . . . . . . xxix

Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxix

E Series and JunosE Text and Syntax Conventions . . . . . . . . . . . . . . . . . . . . . . . . xxix

Obtaining Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxxi

Documentation Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxxi

Requesting Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxxi

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

Opening a Case with JTAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxxii

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

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

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

Interface Specifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

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

Supported Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Module Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Virtual Channel Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

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

ARP Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Static Map Versus Inverse ARP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

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

Removing Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

JunosE 11.3.x Link Layer Configuration Guide

Operations, Administration, and Management of ATM Interfaces . . . . . . . . . . . . . 14

Before You Configure ATM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Configuration Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Creating a Basic Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Setting Optional Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Configuring OAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Configuring an NBMA Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Creating an NBMA Static Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Assigning Descriptions to Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Sending Interface Descriptions to AAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Configuring Individual ATM PVC Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Configuring ATM VC Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

End-to-End and Segment Endpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

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

How the ATM Interface Handles AIS Cells . . . . . . . . . . . . . . . . . . . . . . . . . 15

How the ATM Interface Handles RDI Cells . . . . . . . . . . . . . . . . . . . . . . . . . 15

Continuity Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Activation and Deactivation Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Activating CC Cell Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Deactivating CC Cell Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

After CC Cell Flow Is Enabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

VC Integrity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

F4 OAM Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

ATM Ping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

How the ATM Interface Handles Loopback Cells Received . . . . . . . . . . . 18

Automatic Disabling of F5 OAM Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Rate Limiting for F5 OAM Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Optional Tasks on ATM 1483 Subinterfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Configuring F4 OAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Configuring F5 OAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Setting a Loopback Location ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Enabling OAM Flush . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Running ATM Ping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Assigning Descriptions to Virtual Paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Exporting ATM 1483 Subinterface Descriptions . . . . . . . . . . . . . . . . . . . . . . . . 42

Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Creating Control PVCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Creating Data PVCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Configuring the Service Category for Data PVCs . . . . . . . . . . . . . . . . . . . . . . . 46

Configuring Encapsulation for Data PVCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Configuring F5 OAM for Data PVCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Configuring Inverse ARP for Data PVCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Precedence Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Precedence Levels for Static PVCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Precedence Levels for Dynamic PVCs . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Precedence Level Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Upgrade Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Table of Contents

Configuring VC Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Assigning VC Classes to Individual PVCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Assigning VC Classes to ATM Major Interfaces . . . . . . . . . . . . . . . . . . . . . . . . 62

Assigning VC Classes to Static ATM 1483 Subinterfaces . . . . . . . . . . . . . . . . 63

Assigning VC Classes to Base Profiles for Bulk-Configured VC Ranges . . . . . 64

Precedence Level Examples for Assigning VC Classes . . . . . . . . . . . . . . . . . . 64

Example 1: Explicitly Changing the Service Category . . . . . . . . . . . . . . . . 65

Example 2: Changing the Encapsulation Method in the VC Class . . . . . . 65

Example 3: Effect of Using the atm pvc Command . . . . . . . . . . . . . . . . . 66

Example 4: Overriding RADIUS Values . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Configuring Dynamic ATM 1483 Subinterfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Monitoring ATM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Setting Statistics Baselines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Displaying Interface Rate Statistics for ATM VCs and ATM VPs . . . . . . . . . . . 68

Using ATM show Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Chapter 2 Configuring Frame Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Framing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Error Frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Unicast and Multicast Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

User-to-Network and Network-to-Network Interfaces . . . . . . . . . . . . . . . . . 106

Platform Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Interface Specifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Before You Configure Frame Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Configuring Frame Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

End-to-End Fragmentation and Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Frame Fragmentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Frame Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Map Class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Configuring End-to-End Fragmentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Monitoring Frame Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Chapter 3 Configuring Multilink Frame Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

T1/E1 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

MLFR Link Integrity Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Interface Stacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Platform Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Interface Specifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Supported MLFR Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Unsupported MLFR Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Before You Configure MLFR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Configuration Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Configuration Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

Configuring Frame Relay Versus MLFR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

JunosE 11.3.x Link Layer Configuration Guide

Monitoring MLFR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Chapter 4 Configuring Upper-Layer Protocols over Static Ethernet Interfaces . . . . . . 151

Upper-Layer Protocols over Static Ethernet Overview . . . . . . . . . . . . . . . . . . . . . 151

Upper-Layer Protocols over Static Ethernet Platform Considerations . . . . . . . . . 152

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

Configuring IP over a Static Ethernet Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Configuring PPPoE over a Static Ethernet Interface . . . . . . . . . . . . . . . . . . . . . . . 154

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

Configuring IP, MPLS, and PPPoE over Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . 155

L2TP and Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Multinetting and Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Monitoring Upper-Level Protocols over Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Chapter 5 Configuring VLAN and S-VLAN Subinterfaces . . . . . . . . . . . . . . . . . . . . . . . . 167

VLAN Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

S-VLAN Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

VLAN and S-VLAN Platform Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

VLAN and S-VLAN References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Creating a VLAN Subinterface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Configuring an S-VLAN Subinterface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178

Configuring S-VLAN Tunnels for Layer 2 Services over MPLS . . . . . . . . . . . . . . . . 182

S-VLAN Oversubscription . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185

Monitoring VLAN and S-VLAN Subinterfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

Chapter 6 Configuring 802.3ad Link Aggregation and Link Redundancy . . . . . . . . . . 197

802.3ad Link Aggregation for Ethernet Overview . . . . . . . . . . . . . . . . . . . . . . . . . 197

802.3ad Link Aggregation Platform Considerations . . . . . . . . . . . . . . . . . . . . . . . 199

Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Interface Specifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Interface Specifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Creating a VLAN Major Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

Configuring IP over VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

Configuring PPPoE over VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

Configuring MPLS over VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

Configuring IP over VLAN and PPPoE over VLAN . . . . . . . . . . . . . . . . . . . . . . 174

Configuring an S-VLAN Subinterface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178

Configuring PPPoE over an S-VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

Interface Stacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

Configuration Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

Displaying Interface Rate Statistics for VLAN Subinterfaces . . . . . . . . . . . . 186

Using Ethernet show Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

LACP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

Higher-Level Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

Load Balancing and QoS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199

Ethernet Link Aggregation and MPLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199

Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199

Interface Specifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

Table of Contents

802.3ad Link Aggregation References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

Configuring 802.3ad Link Aggregation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

Configuring an Ethernet Physical Interface . . . . . . . . . . . . . . . . . . . . . . . . . . 201

Configuring a LAG Bundle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

Configuring IP for a LAG Bundle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

Configuring a VLAN Subinterface for a LAG Bundle . . . . . . . . . . . . . . . . . . . 202

Configuring a PPPoE Subinterface for a LAG Bundle . . . . . . . . . . . . . . . . . . 202

Configuring MPLS for a LAG Bundle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202

Example: Configuring an IP Interface for a LAG Bundle . . . . . . . . . . . . . . . . . . . . 205

Example: Configuring a PPPoE Subinterface for a LAG Bundle . . . . . . . . . . . . . . 205

Example: Configuring a PPPoE Subinterface over a VLAN for a LAG Bundle . . . 206

Example: Configuring MPLS for a LAG Bundle . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

Example: Configuring MPLS over a VLAN for a LAG Bundle . . . . . . . . . . . . . . . . . 207

Ethernet Link Redundancy Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208

Ethernet Link Redundancy Configuration Models . . . . . . . . . . . . . . . . . . . . . 208

Ethernet Link Redundancy Configuration Diagrams . . . . . . . . . . . . . . . 209

Ethernet Link Redundancy Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212

Link Failure and Acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

Protecting Against Physical Link Failure . . . . . . . . . . . . . . . . . . . . . . . . . 213

Protecting Against Virtual Link Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

Reverting After a Failover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214

LACP Configuration and Member Link Behavior . . . . . . . . . . . . . . . . . . . . . . 214

Member Link with Non-LAG Partner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

Ethernet Link Redundancy and RSTP . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

Acquiring Initial Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216

Detecting Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216

Failing Over . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216

Configuring Ethernet Link Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

Monitoring 802.3ad Link Aggregation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218

Chapter 7 Configuring IEEE 802.3ah OAM Link-Fault Management . . . . . . . . . . . . . . 223

Ethernet OAM Link-Fault Management Overview . . . . . . . . . . . . . . . . . . . . . . . . 224

Ethernet OAM Link-Fault Management Platform Considerations . . . . . . . . . . . . 225

Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

Interface Specifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

Ethernet OAM Link-Fault Management References . . . . . . . . . . . . . . . . . . . . . . . 226

OAM Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226

OAM Elements Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

OAM Client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

OAM Sublayer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

Control Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

Multiplexer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

Parser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

OAM Feature Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230

OAM Discovery Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230

Information OAM PDU Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

Transmission Settings for Information OAM PDUs . . . . . . . . . . . . . . . . . . . . . 231

JunosE 11.3.x Link Layer Configuration Guide

OAM Link Monitoring Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232

OAM Remote Fault Detection Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234

OAM Remote and Local Loopback Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

Interrelationship of OAM Link-Fault Management with Ethernet Subsystems . . 236

Guidelines for Configuring 802.3ah OAM Link-Fault Management . . . . . . . . . . . 237

Configuring 802.3ah OAM Link-Fault Management . . . . . . . . . . . . . . . . . . . . . . . 238

Example: Configuring 802.3ah OAM Link-Fault Management and Enabling

Example: Enabling Remote Loopback Support on the Local Interface . . . . . . . . 245

Monitoring OAM Link-Fault Management Discovery Settings for an Interface . . 245

Monitoring OAM Link-Fault Management Statistics for an Interface . . . . . . . . . 248

Monitoring OAM Link-Fault Management Configuration for an Interface . . . . . . 250

Monitoring OAM Link-Fault Management Sessions on All Configured

Chapter 8 Configuring Point-to-Point Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259

Platform Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270

Before You Configure PPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271

Configuration Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271

Optional Configuration Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274

PPP Accounting Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

Monitoring PPP Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282

Supported Error Events for Tracking Link Faults . . . . . . . . . . . . . . . . . . . . . . 233

Actions Performed on Exceeding Threshold Values . . . . . . . . . . . . . . . . . . . 233

Link Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234

Dying Gasp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234

Critical Event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234

Remote Failure Monitoring on an Interface . . . . . . . . . . . . . . . . . . . . . . . . . . 244

Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253

Framing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259

Error Frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

Link Control Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

LCP Negotiation Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

Validation of LCP Peer Magic Number . . . . . . . . . . . . . . . . . . . . . . . . . . . 261

B-RAS Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262

Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263

Rate Limiting for PPP Control Packets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263

Extensible Authentication Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263

EAP Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264

EAP Packet Retransmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264

EAP Behavior in an L2TP Environment . . . . . . . . . . . . . . . . . . . . . . . . . . 265

Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265

Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266

Remote Peer Scenarios During Negotiation of PPP Options . . . . . . . . . . . . 267

IPCP Lockout and Local IP Address Pool Restoration . . . . . . . . . . . . . . . . . . 268

IPCP Negotiation with Optional Peer IP Address . . . . . . . . . . . . . . . . . . . . . 268

Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269

Interface Specifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270

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

Table of Contents

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296

Chapter 9 Configuring Multilink PPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299

Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300

MLPPP LCP Extensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300

MLPPP Link Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301

Platform Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302

Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303

Interface Specifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303

Supported MLPPP Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304

Unsupported MLPPP Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308

Before You Configure Static MLPPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308

Configuring Static MLPPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308

Configuration Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309

Contextual Command Differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310

Configuring Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310

Configuring Other PPP Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312

Configuring Dynamic MLPPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

Configuring MLPPP Fragmentation and Reassembly . . . . . . . . . . . . . . . . . . . . . 320

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

Supported Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

Link Configuration Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

Bundle Validation and Configuration Guidelines . . . . . . . . . . . . . . . . . . . 321

Bundle Validation Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322

Recovering from Bundle Validation Failure . . . . . . . . . . . . . . . . . . . . . . . 322

Configuring Fragmentation and Reassembly for Static MLPPP . . . . . . . . . . 323

Static MLPPP over ATM 1483 Example . . . . . . . . . . . . . . . . . . . . . . . . . . 324

Configuring Fragmentation and Reassembly for Dynamic MLPPP . . . . . . . 324

Dynamic MLPPP over PPPoE Example . . . . . . . . . . . . . . . . . . . . . . . . . . 325

Dynamic MLPPP over L2TP Example . . . . . . . . . . . . . . . . . . . . . . . . . . . 325

Configuring Fragmentation and Reassembly for MLPPP Bundles . . . . . . . . 328

Configuring Multiclass MLPPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328

Monitoring MLPPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329

Chapter 10 Configuring Multiclass Multilink PPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345

Multiclass MLPPP Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345

Multiclass MLPPP Fragmentation and Reassembly . . . . . . . . . . . . . . . . . . . 345

Multiclass MLPPP Configuration Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . 346

Multiclass MLPPP Traffic Classes Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346

Multiclass MLPPP LCP Extensions Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347

Multiclass MLPPP Platform Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347

Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348

Interface Specifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348

Multiclass MLPPP References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348

Configuring Multiclass MLPPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348

Enabling Multiclass MLPPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349

JunosE 11.3.x Link Layer Configuration Guide

Configuring Traffic Classes on Multiclass MLPPP Interfaces . . . . . . . . . . . . . . . . 350

Configuring Fragmentation on Multiclass MLPPP Interfaces . . . . . . . . . . . . . . . 350

Configuring Reassembly on Multiclass MLPPP Interfaces . . . . . . . . . . . . . . . . . . 351

Example: Configuring Multiclass MLPPP on a Dynamic Interface . . . . . . . . . . . . 352

Example: Configuring Multiclass MLPPP on a Static Interface . . . . . . . . . . . . . . 353

Monitoring Multiclass MLPPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353

Chapter 11 Configuring Packet over SONET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

Platform Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361

Before You Configure POS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362

Configuration Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362

Monitoring POS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366

Chapter 12 Configuring Point-to-Point Protocol over Ethernet . . . . . . . . . . . . . . . . . . . . 371

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371

Platform Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381

Access Nodes in Ethernet Aggregation Networks Overview . . . . . . . . . . . . . . . . 382

ATM-to-Ethernet Interworking Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382

Before You Configure PPPoE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 384

Configuring PPPoE over ATM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 384

Processing of IWF PPPoE Sessions with Duplicate MAC Addresses . . . . . . . . . . 391

Guidelines for Configuring Duplicate Protection for IWF PPPoE Sessions . . . . . . 391

Configuration Examples for ATM-to-Ethernet Interworking Functions . . . . . . . . 392

POS Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

SONET/SDH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360

Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361

Interface Specifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361

PPPoE Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372

Discovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372

Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373

PPPoE Service Name Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374

Table Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374

Enabling the Service Name Table for Use . . . . . . . . . . . . . . . . . . . . . . . . 375

Using the PPPoE Remote Circuit ID to Identify Subscribers . . . . . . . . . . . . . 375

Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375

PPPoE Remote Circuit ID Capture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376

PPPoE Remote Circuit ID Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376

Use by RADIUS or L2TP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379

System Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380

PPPoE MTU Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380

Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381

Interface Specifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381

Single DSLAM Connected to a PPPoE Access Concentrator Example . . . . . 392

Multiple DSLAMs Connected to a PPPoE Access Concentrator Example . . 393

Table of Contents

Configuring PPPoE for Ethernet Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 394

PPPoE Interface and Subinterface Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . 395

Configuring IPv4 and IPv6 over PPPoE with VLAN . . . . . . . . . . . . . . . . . . . . 395

Configuring PPPoE Without VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398

Configuring PADM Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402

Configuring PADN Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404

Configuring PPPoE Service Name Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405

Creating and Populating PPPoE Service Name Tables . . . . . . . . . . . . . . . . . 405

Enabling PPPoE Service Name Tables for Use with Static Interfaces . . . . . 408

PPPoE over ATM Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408

PPPoE over Ethernet Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 410

Enabling PPPoE Service Name Tables for Use with Dynamic Interfaces . . . . 411

Configuring PADS Packet Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413

Configuring PPPoE Remote Circuit ID Capture . . . . . . . . . . . . . . . . . . . . . . . . . . . 414

Monitoring PPPoE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 435

Chapter 13 Configuring Bridged IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437

Proxy ARP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437

DHCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438

Platform Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438

Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438

Interface Specifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439

Before You Configure Bridged IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439

Configuring Bridged IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440

Chapter 14 Configuring Bridged Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443

Bridged Ethernet Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 444

Assigning MAC Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 444

VLAN and S-VLAN Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 444

Platform Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 446

Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 446

Interface Specifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 446

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 447

Configuring Bridged Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 447

Configuring IP with PPPoE Terminated at the Router . . . . . . . . . . . . . . . . . . 447

Alternative Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 451

Configuring VLANs over Bridged Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 452

Configuring VLAN Subinterfaces over Bridged Ethernet . . . . . . . . . . . . . . . . 453

Configuring Higher-Level Protocols over VLANs . . . . . . . . . . . . . . . . . . . . . . 453

Configuring IP over VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 453

Configuring PPPoE over VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 453

Configuring MPLS over VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 454

Configuring S-VLANs over Bridged Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 457

Configuring S-VLAN Subinterfaces over Bridged Ethernet . . . . . . . . . . . . . . 457

Configuring Higher-Level Protocols over S-VLANs . . . . . . . . . . . . . . . . . . . . 458

Configuring the MTU Size for Bridged Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . 459

JunosE 11.3.x Link Layer Configuration Guide

Monitoring Bridged Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 460

Chapter 15 Configuring Transparent Bridging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 465

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

Platform Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 471

Before You Configure Transparent Bridging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 471

Configuration Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 472

Configuration Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 485

Monitoring Transparent Bridging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 487

Chapter 16 Configuring Cisco HDLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 503

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 503

Platform Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504

Before You Configure Cisco HDLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 505

Configuration Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 505

Monitoring Cisco HDLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 508

How Transparent Bridging Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 465

Bridge Groups and Bridge Group Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . 466

Bridge Interface Types and Supported Configurations . . . . . . . . . . . . . . . . . 467

Subscriber Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 468

Concurrent Routing and Bridging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 469

Transparent Bridging and VPLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470

Unsupported Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470

Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470

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

Creating Bridge Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 473

Configuring Optional Bridge Group Attributes . . . . . . . . . . . . . . . . . . . . . . . . 473

Configuring Bridge Group Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 476

Configuring Subscriber Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 478

Enabling Concurrent Routing and Bridging . . . . . . . . . . . . . . . . . . . . . . . . . . 483

Configuring Explicit Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 483

Example 1: Bridging with Bridged Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . 485

Example 2: Bridging with VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 486

Setting Statistics Baselines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 488

Removing Dynamic MAC Address Entries . . . . . . . . . . . . . . . . . . . . . . . . . . . 489

Monitoring Bridge Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 490

Monitoring Bridge Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 497

Monitoring Subscriber Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 499

Framing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 503

Error Frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504

SLARP Keepalive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504

Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504

Interface Specifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504

Optional Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 506

Configuration Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 508

Table of Contents

Chapter 17 Configuring Dynamic Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 511

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 511

Autodetection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 512

Types of Dynamic Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 512

Upper-Layer Dynamic Interface Configurations . . . . . . . . . . . . . . . . . . . . . . . 513

Profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 514

RADIUS Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 514

ATM Oversubscription for Dynamic Interfaces . . . . . . . . . . . . . . . . . . . . . . . . 515

How Oversubscription Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 515

Static ATM 1483 Subinterfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 515

Bulk-Configured VC Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 516

Combination of Static ATM 1483 Subinterfaces and Bulk-Configured

VC Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 516

Ethernet Oversubscription for Dynamic Interfaces . . . . . . . . . . . . . . . . . . . . 516

Platform Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 517

Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 517

Interface Specifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 517

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 518

About Configuring Dynamic Interfaces over Static ATM . . . . . . . . . . . . . . . . . . . . 518

About Configuring RADIUS for Dynamic Interfaces . . . . . . . . . . . . . . . . . . . . 519

subscriber Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 519

Authenticating Subscribers on Dynamic Bridged Ethernet over Static

ATM Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 519

Placing Dynamic IP Routes in the Routing Table . . . . . . . . . . . . . . . . . . 520

auto-configure Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 521

Encapsulation Type Lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 521

atm pvc Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 525

Configuration Example for Encapsulation Type Lockout for IWF PPPoE

Sessions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 525

Configuring PPP and PPPoE Dynamic Interfaces over Static ATM . . . . . . . . . . . 525

Configuring a PPP or PPPoE Dynamic Interface . . . . . . . . . . . . . . . . . . . . . . 527

Terminating Stale PPPoA Subscribers and Restarting LCP Negotiations . . 530

Configuring PPPoE Dynamic Interfaces over PPPoE Static Interfaces . . . . . . . . . 531

Configuring Dynamic PPPoE over Static PPPoE with ATM Interface

Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 531

Configuring Dynamic PPPoE over Static PPPoE with Ethernet Interface

Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 532

Configuring Dynamic PPPoE over Static PPPoE with Ethernet and VLAN

Interface Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 533

Configuring IPv4 and IPv6 over Static and Dynamic PPPoE . . . . . . . . . . . . . 534

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

Interface Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 539

S-VLAN Oversubscription . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 540

Configuring Encapsulation Type Lockout for PPPoE Clients . . . . . . . . . . . . 544

Differences from Lockout Configuration for PPPoE over Static ATM . . 545

Configuration Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 545

Configuring and Verifying Lockout for PPPoE Clients . . . . . . . . . . . . . . 545

Clearing the Lockout Condition for a PPPoE Client . . . . . . . . . . . . . . . . 547

JunosE 11.3.x Link Layer Configuration Guide

Configuring IPoA Dynamic Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550

Configuring Bridged Ethernet Dynamic Interfaces . . . . . . . . . . . . . . . . . . . . . . . . 554

Configuring a Dynamic Interface from a Profile . . . . . . . . . . . . . . . . . . . . . . . . . . 559

Scripts and Macros . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 593

Monitoring Upper-Layer Dynamic Interfaces and Profiles . . . . . . . . . . . . . . . . . . 593

Troubleshooting PPP and PPPoE Dynamic Interfaces . . . . . . . . . . . . . . . . . . . . . 614

Chapter 18 Configuring Dynamic Interfaces Using Bulk Configuration . . . . . . . . . . . . . 619

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 619

Platform Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 622

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 624

Configuring ATM 1483 Dynamic Subinterfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . 624

Configuring a Dynamic IPoA Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550

Configuring a Dynamic Bridged Ethernet Interface . . . . . . . . . . . . . . . . . . . . 554

Configuring Subscriber Management for IPSubscriberson DynamicBridged

Ethernet Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 557

Configuration Example Using subscriber Command . . . . . . . . . . . . . . . 558

Equivalent Configuration Example Using IP Subscriber

Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 558

Profile Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 559

Profile Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 560

Bridged Ethernet Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 560

IP Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 560

IPv6 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 561

L2TP Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 562

MLPPP and PPP Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 562

PPPoE Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 563

VLAN Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 564

Working with Profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 564

Configuring a Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 565

Assigning a Profile to an Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 589

Profile Configuration Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 591

Bulk Dynamic Interface Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 620

Profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 620

ATM Oversubscription for Bulk-Configured VC Ranges . . . . . . . . . . . . . . . . . 621

Bulk-Configured VC Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 621

Combination of Static ATM 1483 Subinterfaces and Bulk-Configured

VC Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 622

Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 623

Interface Specifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 623

About Configuring Dynamic ATM 1483 Subinterfaces . . . . . . . . . . . . . . . . . 625

Overview and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 625

ATM 1483 Base Profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 626

Nested Profile Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 626

Additional Profile Characteristics for Upper Interfaces . . . . . . . . . . . . . 627

Bulk Configuration of VC Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 627

Bulk Configuration and VC Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 628

Bulk Configuration and CAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 629

Dynamic Interface Creation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 629

Table of Contents

Overriding Base Profile Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . 629

Changing VC Subranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 630

Static ATM Interfaces Within VC Subranges . . . . . . . . . . . . . . . . . . . . . 630

Terminating Stale PPPoA Subscribers and Restarting LCP

Negotiations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 631

AuthenticatingSubscribers onDynamic Bridged Ethernet overDynamic

ATM Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 632

Configuring a Dynamic ATM 1483 Subinterface . . . . . . . . . . . . . . . . . . . . . . 633

Configuring Overriding Profile Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . 641

Assigning an Overriding Profile to an ATM PVC . . . . . . . . . . . . . . . . . . . 642

Removing an Overriding Profile Assignment from an ATM PVC . . . . . . 643

Removing Overriding Profile Assignments from a VC Range or

VC Subrange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 644

Changing VC Subranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 646

Adding VC Subranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 646

Removing VC Subranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 647

Modifying VC Subranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 647

Merging VC Subranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 648

Changing the Administrative State of VC Subranges . . . . . . . . . . . . . . 648

Configuring Static ATM Interfaces Within VC Subranges . . . . . . . . . . . . . . . 650

Creating Static ATM Interfaces Within VC Subranges . . . . . . . . . . . . . . 651

Creating VC Subranges That Include Static ATM Interfaces . . . . . . . . . . 651

Configuring VLAN Dynamic Subinterfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 653

About Configuring Dynamic VLAN Subinterfaces . . . . . . . . . . . . . . . . . . . . . 654

Overview and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 654

VLAN Base Profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 655

Nested Profile Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 656

Additional Profile Characteristics for Upper Interfaces . . . . . . . . . . . . . 657

Bulk Configuration of VLAN Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . 657

Bulk Configuration of VLAN Ranges Using Agent-Circuit-Identifier

Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 658

Dynamic Interface Creation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 659

Overriding Base Profile Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . 660

Changing VLAN Subranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 660

Static VLAN Subinterfaces Within VLAN Subranges . . . . . . . . . . . . . . 660

Configuring a Dynamic VLAN Subinterface . . . . . . . . . . . . . . . . . . . . . . . . . . 661

Configuring Dynamic VLAN Subinterfaces Based on Agent Circuit Identifier

Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 663

Configuring Overriding Profile Assignments for VLAN Major Interfaces . . . 664

Removing an Overriding Profile Assignment from a VLAN . . . . . . . . . . 665

Removing Overriding Profile Assignments from a VLAN Range or VLAN

Subrange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 666

Changing VLAN Subranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 673

Adding VLAN Subranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 674

Removing VLAN Subranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 674

Modifying VLAN Subranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 675

Merging VLAN Subranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 676

Changing the Administrative State of VLAN Subranges . . . . . . . . . . . . 676

JunosE 11.3.x Link Layer Configuration Guide

Monitoring Dynamic Interfaces and Profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 682

Part 2 Index

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 709

Configuring Static VLAN Subinterfaces Within VLAN Subranges . . . . . . . . . 679

Creating Static VLAN Subinterfaces Within VLAN Subranges . . . . . . . 679

Creating VLAN Subranges That Include Static VLAN Subinterfaces . . 680

List of Figures

Part 1 Chapters

Chapter 1 Configuring ATM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

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

Figure 2: NBMA Interface Stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 3: Configuring an ATM Interface, Subinterface, and PVC . . . . . . . . . . . . . . . 22

Chapter 2 Configuring Frame Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Figure 4: Interconnection and Relationship of NNIs and Subnetworks . . . . . . . . 107

Chapter 3 Configuring Multilink Frame Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Figure 5: MLFR Aggregation of T1 Lines into a Single Bundle . . . . . . . . . . . . . . . . 132

Figure 6: Terminating the Bundle at an MLFR Bridge . . . . . . . . . . . . . . . . . . . . . . . 132

Figure 7: Structure of MLFR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Chapter 4 Configuring Upper-Layer Protocols over Static Ethernet Interfaces . . . . . . 151

Figure 8: Multiplexing Multiple Protocols over a Single Physical Link . . . . . . . . . . 152

Figure 9: Example of IP over Ethernet Stacking Configuration Procedure . . . . . . 154

Figure 10: Example of PPPoE Stacking Configuration Procedure . . . . . . . . . . . . . 154

Figure 11: Example of IP and MPLS Stacking Configuration Procedure . . . . . . . . . 155

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

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Chapter 5 Configuring VLAN and S-VLAN Subinterfaces . . . . . . . . . . . . . . . . . . . . . . . . 167

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

Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

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

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

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

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

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

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

Figure 17: Example ofPPPoE over VLANwith IPover VLAN StackingConfiguration

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

Figure 18: Example of PPPoE over S-VLAN Stacking Configuration Procedure . . 180

Figure 19: S-VLAN Tunnels for Ethernet Layer 2 Services over MPLS . . . . . . . . . . 182

Chapter 6 Configuring 802.3ad Link Aggregation and Link Redundancy . . . . . . . . . . 197

Figure 20: Interface Stack for 802.3ad Link Aggregation . . . . . . . . . . . . . . . . . . . 198

Figure 21: Ethernet Link Redundancy Configuration Models . . . . . . . . . . . . . . . . 209

Figure 22: GE-2 Line Module Using Physical Port Redundancy . . . . . . . . . . . . . . . 210

Figure 23: Single-Homed GE-2 Line Module Configuration . . . . . . . . . . . . . . . . . . 210

Figure 24: Single-Homed FE-8 Line Module Configuration (1:N) . . . . . . . . . . . . . 210

JunosE 11.3.x Link Layer Configuration Guide

Figure 25: FE-8 Line Module with 4 Redundant Ethernet Links (1:1) . . . . . . . . . . . 211

Figure 26: Single-Homed GE-4 IOA Configuration (1:4) . . . . . . . . . . . . . . . . . . . . . 211

Figure 27: GE-8 IOA Configuration Across IOAs (1:N) . . . . . . . . . . . . . . . . . . . . . . . 212

Figure 28: Dual-Homed Configuration (1:1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212

Figure 29: Dual-Homed Heterogeneous Configuration in an RSTP Network . . . . 215

Chapter 7 Configuring IEEE 802.3ah OAM Link-Fault Management . . . . . . . . . . . . . . 223

Figure 30: OAM PDU Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226

Figure 31: OAM Sublayer Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

Figure 32: OAM Sublayer Entities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

Figure 33: Interrelationship Between 802.3ah OAM and 802.3ad LAG . . . . . . . . 236

Chapter 8 Configuring Point-to-Point Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259

Figure 34: Authentication with EAP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263

Chapter 9 Configuring Multilink PPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299

Figure 35: MLPPP Aggregation of T1 Lines into a Single Bundle . . . . . . . . . . . . . 300

Figure 36: Structure of MLPPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300

Chapter 12 Configuring Point-to-Point Protocol over Ethernet . . . . . . . . . . . . . . . . . . . . 371

Figure 37: PPPoE over ATM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372

Figure 38: Example of PPPoE over ATM Stacking . . . . . . . . . . . . . . . . . . . . . . . . . 387

Figure 39: Single DSLAM Connected to a PPPoE Access Concentrator . . . . . . . 393

Figure 40: Multiple DSLAMs Connected to a PPPoE Access Concentrator . . . . . 394

Figure 41: Example of Configuring IPv4 and IPv6 over PPPoE . . . . . . . . . . . . . . . 395

Figure 42: Example of PPPoE Stacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 399

Chapter 14 Configuring Bridged Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443

Figure 43: Bridged Ethernet Topology, Router Terminating and Routing

Figure 44: Interface Stacking for VLANs over Bridged Ethernet . . . . . . . . . . . . . . 445

Chapter 15 Configuring Transparent Bridging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 465

Figure 45: Bridge Group with Fast Ethernet and Gigabit Ethernet Bridge

Chapter 17 Configuring Dynamic Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 511

Figure 46: Configuring an ATM 1483 Interface to Support Dynamic Interfaces . . 518

Figure 47: Dynamic PPP Interface Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 526

Figure 48: Dynamic PPPoE Interface Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . 526

Figure 49: Dynamic PPPoE over Static PPPoE with ATM Interface Columns . . . . 531

Figure 50: Dynamic PPPoE over Static PPPoE with Non-VLAN Interface

Figure 51: Dynamic PPPoE over Static PPPoE with VLAN Interface Columns . . . 534 Figure 52: IPv4 and IPv6 Interface Columns over Static and Dynamic PPPoE . . 535 Figure 53: Dynamic PPPoE over Static PPPoE with S-VLAN Interface

Figure 54: Dynamic IPoA over Static ATM 1483 Interface Columns . . . . . . . . . . . 550

Figure 55: Dynamic Bridged Ethernet over Static ATM 1483 Interface

Figure 56: Creating and Configuring a Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . 564

Figure 57: Assigning a Profile to a Static Interface . . . . . . . . . . . . . . . . . . . . . . . . 565

Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 444

Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 467

Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 533

Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 539

Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 554

List of Figures

Chapter 18 Configuring Dynamic Interfaces Using Bulk Configuration . . . . . . . . . . . . . 619

Figure 58: Dynamic Interface Columns over Dynamic ATM 1483

Subinterfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 625

Figure 59: Dynamic Interface Columns over Dynamic VLAN Subinterfaces . . . . 653

Figure 60: Dynamic IP and PPPoE over Single Dynamic VLAN Subinterface . . . 654

Figure 61: Dynamic VLAN Subinterfaces for Subscribers . . . . . . . . . . . . . . . . . . . 655

JunosE 11.3.x Link Layer Configuration Guide

List of Tables

About the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxix

Table 1: Notice Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxx

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

Part 1 Chapters

Chapter 1 Configuring ATM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

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

Table 4: Traffic Parameters Used to Compute Bandwidth . . . . . . . . . . . . . . . . . . . . 7

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

Table 6: Handling of F4 and F5 Loopback Cells Received . . . . . . . . . . . . . . . . . . . 19

Table 7: F5 OAM Configuration Tasks and Associated Commands . . . . . . . . . . . . 49

Table 8: Commands to Configure VC Class Attributes . . . . . . . . . . . . . . . . . . . . . . 57

Chapter 3 Configuring Multilink Frame Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Table 9: LIP Messages and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Chapter 6 Configuring 802.3ad Link Aggregation and Link Redundancy . . . . . . . . . . 197

Table 10: Behavior of Member Links Using Local and Remote LACP Modes . . . . 215

Chapter 7 Configuring IEEE 802.3ah OAM Link-Fault Management . . . . . . . . . . . . . . 223

Table 11: show ethernet oam lfm discovery Output Fields . . . . . . . . . . . . . . . . . . 246

Table 12: show ethernet oam lfm statistics Output Fields . . . . . . . . . . . . . . . . . . 249

Table 13: show ethernet oam lfm status Output Fields . . . . . . . . . . . . . . . . . . . . . 251

Table 14: show ethernet oam lfm summary Output Fields . . . . . . . . . . . . . . . . . 254

Chapter 8 Configuring Point-to-Point Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259

Table 15: Supported EAP Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264

Chapter 9 Configuring Multilink PPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299

Table 16: Supported Configurations for MLPPP Fragmentation and

Chapter 10 Configuring Multiclass Multilink PPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345

Table 17: show ppp interface mlppp Output Fields . . . . . . . . . . . . . . . . . . . . . . . . 355

Chapter 11 Configuring Packet over SONET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

Table 18: Most Common SONET/SDH Implementations . . . . . . . . . . . . . . . . . . 360

Chapter 12 Configuring Point-to-Point Protocol over Ethernet . . . . . . . . . . . . . . . . . . . . 371

Table 19: Sample PPPoE Service Name Table . . . . . . . . . . . . . . . . . . . . . . . . . . . 374

Table 20: Configuring Nondefault Formats for the PPPoE Remote Circuit ID . . . 376

Table 21: Interface Specifier Format Examples for dsl-forum-1 Keyword . . . . . . 378

Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

JunosE 11.3.x Link Layer Configuration Guide

Table 22: PPPoE Duplicate Protection Scenarios for IWF and non-IWF PPPoE

Table 23: Default PPPoE Service Name Table . . . . . . . . . . . . . . . . . . . . . . . . . . . 406

Table 24: PPPoE Service Name Table with Entries . . . . . . . . . . . . . . . . . . . . . . . 406

Chapter 13 Configuring Bridged IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437

Table 25: Prerequisite Tasks for Configuring Bridged IP . . . . . . . . . . . . . . . . . . . . 440

Chapter 15 Configuring Transparent Bridging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 465

Table 26: Sample Bridge Group Forwarding Table . . . . . . . . . . . . . . . . . . . . . . . . 467

Table 27: Default Subscriber Policies for Bridge Group Interfaces . . . . . . . . . . . . 468

Table 28: Prerequisite Tasks for Configuring Transparent Bridging . . . . . . . . . . . 472

Chapter 17 Configuring Dynamic Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 511

Table 29: Differences in Lockout Operation for Dynamic PPPoE

Sessions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392

Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 545

About the Documentation

•

E Series and JunosE Documentation and Release Notes on page xxix

•

Audience on page xxix

•

E Series and JunosE Text and Syntax Conventions on page xxix

•

Obtaining Documentation on page xxxi

•

Documentation Feedback on page xxxi

•

Requesting Technical Support on page xxxi

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 SeriesBroadband Services Routers inan Internet access environment.

E Series and JunosE Text and Syntax Conventions

Table 1 on page xxx defines notice icons used in this documentation.

JunosE 11.3.x Link Layer Configuration Guide

Table 1: Notice Icons

Table 2 on page xxx 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

Representscommands and keywords in text.Bold text like this

Fixed-width text like this

Italic text like this

Plus sign (+) linking key names

Syntax Conventions in the Command Reference Guide

Representsinformationas displayed on your terminal’s screen.

•

Emphasizes words.

•

Identifies variables.

•

Identifies chapter, appendix, and book names.

keys simultaneously.

ExamplesDescriptionConvention

•

Issue the clock source command.

•

Specify the keyword exp-msg.

host1(config)#traffic class low-loss1Represents text that the user must type.Bold text like this

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

mask, accessListNameRepresents variables.Italic text like this

+ 742 hidden pages

Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - LINK LAYER CONFIGURATION GUIDE 2010-10-13, JUNOSE 11.3 Configuration Manual

Specifications and Main Features

Frequently Asked Questions

User Manual