Three-Way Handshake for IS-IS Point-to-Point Adjacencies, October 2008
- File formats:
- PROPOSED STANDARD
- RFC 3373
- D. Katz
D. Eastlake 3rd
- isis (rtg)
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The IS-IS routing protocol (Intermediate System to Intermediate System, ISO 10589) requires reliable protocols at the link layer for point-to-point links. As a result, it does not use a three-way handshake when establishing adjacencies on point-to-point media. This paper defines a backward-compatible extension to the protocol that provides for a three-way handshake. It is fully interoperable with systems that do not support the extension.
Additionally, the extension allows the robust operation of more than 256 point-to-point links on a single router.
This extension has been implemented by multiple router vendors; this paper is provided to the Internet community in order to allow interoperable implementations to be built by other vendors. [STANDARDS-TRACK]
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.