OSPF Version 2
RFC 2178, “OSPF Version 2”, is a Draft Standard document published in July 1997 by J. Moy. It obsoletes RFC 1583. It has been obsoleted by RFC 2328 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
This memo documents version 2 of the OSPF protocol. OSPF is a link-state routing protocol. It is designed to be run internal to a single Autonomous System. Each OSPF router maintains an identical database describing the Autonomous System's topology. From this database, a routing table is calculated by constructing a shortest-path tree.
OSPF recalculates routes quickly in the face of topological changes, utilizing a minimum of routing protocol traffic. OSPF provides support for equal-cost multipath. An area routing capability is provided, enabling an additional level of routing protection and a reduction in routing protocol traffic. In addition, all OSPF routing protocol exchanges are authenticated. [STANDARDS-TRACK]
What “Draft Standard” means
A historical maturity level (retired in 2011) that sat between Proposed Standard and Internet Standard and required multiple interoperable implementations.
The canonical text of RFC 2178 is hosted at rfc-editor.org. Available in TXT,HTML.
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