RFC 3787 (rfc3787) - Page 1 of 11
Recommendations for Interoperable IP Networks using Intermediate System to Intermediate System (IS-IS)
Alternative Format: Original Text Document
Network Working Group J. Parker, Ed.
Request for Comments: 3787 Axiowave Networks
Category: Informational May 2004
Recommendations for Interoperable IP Networks
using Intermediate System to Intermediate System (IS-IS)
Status of this Memo
This memo provides information for the Internet community. It does
not specify an Internet standard of any kind. Distribution of this
memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2004). All Rights Reserved.
Abstract
This document discusses a number of differences between the
Intermediate System to Intermediate System (IS-IS) protocol used to
route IP traffic as described in RFC 1195 and the protocol as it is
deployed today. These differences are discussed as a service to
those implementing, testing, and deploying the IS-IS Protocol to
route IP traffic. A companion document describes the differences
between the protocol described in ISO 10589 and current practice.
Table of Contents
1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 2
3. Unused Features . . . . . . . . . . . . . . . . . . . . . . . 2
4. Overload Bit. . . . . . . . . . . . . . . . . . . . . . . . . 3
5. Migration from Narrow Metrics to Wide . . . . . . . . . . . . 4
6. Intermediate System Hello (ISH) PDU . . . . . . . . . . . . . 6
7. Attached Bit. . . . . . . . . . . . . . . . . . . . . . . . . 7
8. Default Route . . . . . . . . . . . . . . . . . . . . . . . . 8
9. Non-homogeneous Protocol Networks . . . . . . . . . . . . . . 8
10. Adjacency Creation and IP Interface Addressing. . . . . . . . 9
11. Security Considerations . . . . . . . . . . . . . . . . . . . 9
12. References. . . . . . . . . . . . . . . . . . . . . . . . . . 10
12.1. Normative References. . . . . . . . . . . . . . . . . . 10
12.2. Informative References. . . . . . . . . . . . . . . . . 10
13. Author's Address. . . . . . . . . . . . . . . . . . . . . . . 10
14. Full Copyright Statement. . . . . . . . . . . . . . . . . . . 11
Parker Informational