IS-IS Autoconfiguration
RFC 8196

Document Type RFC - Proposed Standard (July 2017; No errata)
Last updated 2017-07-13
Replaces draft-liu-isis-auto-conf
Stream IETF
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Reviews
Stream WG state Submitted to IESG for Publication
Document shepherd Hannes Gredler
Shepherd write-up Show (last changed 2017-03-15)
IESG IESG state RFC 8196 (Proposed Standard)
Consensus Boilerplate Yes
Telechat date
Responsible AD Alia Atlas
Send notices to "Hannes Gredler" <hannes@gredler.at>
IANA IANA review state Version Changed - Review Needed
IANA action state RFC-Ed-Ack
Internet Engineering Task Force (IETF)                       B. Liu, Ed.
Request for Comments: 8196                           Huawei Technologies
Category: Standards Track                                    L. Ginsberg
ISSN: 2070-1721                                            Cisco Systems
                                                             B. Decraene
                                                                  Orange
                                                               I. Farrer
                                                     Deutsche Telekom AG
                                                          M. Abrahamsson
                                                               T-Systems
                                                               July 2017

                        IS-IS Autoconfiguration

Abstract

   This document specifies IS-IS autoconfiguration mechanisms.  The key
   components are IS-IS System ID self-generation, duplication
   detection, and duplication resolution.  These mechanisms provide
   limited IS-IS functions and are therefore suitable for networks where
   plug-and-play configuration is expected.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 7841.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc8196.

Liu, et al.                  Standards Track                    [Page 1]
RFC 8196                 IS-IS Autoconfiguration               July 2017

Copyright Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
   2.  Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Protocol Specification  . . . . . . . . . . . . . . . . . . .   4
     3.1.  IS-IS Default Configuration . . . . . . . . . . . . . . .   4
     3.2.  IS-IS NET Generation  . . . . . . . . . . . . . . . . . .   4
     3.3.  Router-Fingerprint TLV  . . . . . . . . . . . . . . . . .   6
     3.4.  Protocol Operation  . . . . . . . . . . . . . . . . . . .   7
       3.4.1.  Startup Mode  . . . . . . . . . . . . . . . . . . . .   7
       3.4.2.  Adjacency Formation . . . . . . . . . . . . . . . . .   8
       3.4.3.  IS-IS System ID Duplication Detection . . . . . . . .   8
       3.4.4.  Duplicate System ID Resolution Procedures . . . . . .   8
       3.4.5.  System ID and Router-Fingerprint Generation
               Considerations  . . . . . . . . . . . . . . . . . . .   9
       3.4.6.  Duplication of Both System ID and Router-Fingerprint   10
     3.5.  Additional IS-IS TLVs Usage Guidelines  . . . . . . . . .  12
       3.5.1.  Authentication TLV  . . . . . . . . . . . . . . . . .  12
       3.5.2.  Metric Used in Reachability TLVs  . . . . . . . . . .  12
       3.5.3.  Dynamic Name TLV  . . . . . . . . . . . . . . . . . .  12
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .  12
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  13
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  13
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .  13
     6.2.  Informative References  . . . . . . . . . . . . . . . . .  14
   Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . .  14
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  15

Liu, et al.                  Standards Track                    [Page 2]
RFC 8196                 IS-IS Autoconfiguration               July 2017

1.  Introduction

   This document specifies mechanisms for IS-IS [RFC1195] [ISO_IEC10589]
   [RFC5308] to be autoconfiguring.  Such mechanisms could reduce the
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