Three-Way Handshake for Intermediate System to Intermediate System Point-to-Point Adjacencies
RFC 3373, “Three-Way Handshake for Intermediate System to Intermediate System Point-to-Point Adjacencies”, is an Informational document published in September 2002 by D. Katz, R. Saluja. It has been obsoleted by RFC 5303 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
The IS-IS routing protocol (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 an 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 as information to the Internet community in order to allow interoperable implementations to be built by other vendors.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
The canonical text of RFC 3373 is hosted at rfc-editor.org. Available in TXT,HTML.
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