RFC 3787 (rfc3787) - Page 2 of 11
Recommendations for Interoperable IP Networks using Intermediate System to Intermediate System (IS-IS)
Alternative Format: Original Text Document
RFC 3787 Interoperable IP Networks using IS-IS May 2004 1. Introduction Interior Gateway Protocols such as IS-IS are designed to provide timely information about the best routes in a routing domain. The original design of IS-IS, as described in ISO 10589 [1] has proved to be quite durable. However, a number of original design choices have been modified. This document describes some of the differences between the protocol as described in RFC 1195 [2] and the protocol that can be observed on the wire today. A companion document describes the differences between the protocol described in ISO 10589 and current practice [8]. The key words "MUST", "MUST NOT", "SHOULD", "SHOULD NOT" and "MAY" in this document are to be interpreted as described in RFC 2119 [3]. 2. Acknowledgments This document is the work of many people, and is the distillation of over a thousand mail messages. Thanks to Vishwas Manral, who pushed to create such a document. Thanks to Danny McPherson, the original editor, for kicking things off. Thanks to Mike Shand, for his work in creating the protocol, and his uncanny ability to remember what everything is for. Thanks to Micah Bartell and Philip Christian, who showed us how to document difference without displaying discord. Thanks to Les Ginsberg, Neal Castagnoli, Jeff Learman, and Dave Katz, who spent many hours educating the editor. Thanks to Radia Perlman, who is always ready to explain anything. Thanks to Satish Dattatri, who was tenacious in seeing things written up correctly, and to Bryan Boulton for his work on the IP adjacency issue. Thanks to Russ White, whose writing improved the treatment of every topic he touched. Thanks to Shankar Vemulapalli, who read several drafts with close attention. Thanks to Don Goodspeed, for his close reading of the text. Thanks to Michael Coyle for identifying the quotation from Jan L.A. van de Snepscheut. Thanks for Alex Zinin's ministrations behind the scenes. Thanks to Tony Li and Tony Przygienda, who kept us on track as the discussions veered into the weeds. And thanks to all those who have contributed, but whose names I have carelessly left from this list. 3. Unused Features Some features defined in RFC 1195 are not in current use. Parker Informational
