Networking Working Group S. Previdi, Ed.
Internet-Draft L. Ginsberg
Intended status: Standards Track Cisco Systems
Expires: August 17, 2012 M. Shand
A. Roy
D. Ward
Cisco Systems
February 14, 2012
IS-IS Multi-Instance
draft-ietf-isis-mi-06.txt
Abstract
This draft describes a mechanism that allows a single router to share
one or more circuits among multiple Intermediate System To
Intermediate System (IS-IS) routing protocol instances.
Multiple instances allow the isolation of resources associated with
each instance. Routers will form instance specific adjacencies.
Each instance can support multiple topologies. Each topology has a
unique Link State Database (LSDB). Each Protocol Data Unit (PDU)
will contain a new Type Length Value (TLV) identifying the instance
and the topology(ies) to which the PDU belongs.
Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119].
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
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Previdi, et al. Expires August 17, 2012 [Page 1]
Internet-Draft draft-ietf-isis-mi-06.txt February 2012
This Internet-Draft will expire on August 17, 2012.
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Internet-Draft draft-ietf-isis-mi-06.txt February 2012
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Elements Of Procedure . . . . . . . . . . . . . . . . . . . . 4
2.1. Instance Identifier TLV . . . . . . . . . . . . . . . . . 5
2.2. Instance Membership . . . . . . . . . . . . . . . . . . . 6
2.3. Use of Authentication . . . . . . . . . . . . . . . . . . 7
2.4. Adjacency Establishment . . . . . . . . . . . . . . . . . 7
2.4.1. Point-to-Point Adjacencies . . . . . . . . . . . . . . 7
2.4.2. Multi-Access Adjacencies . . . . . . . . . . . . . . . 7
2.5. Update Process Operation . . . . . . . . . . . . . . . . . 8
2.5.1. Update Process Operation on Point-to-Point Circuits . 8
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