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RFC 3509: Alternative Implementations of OSPF Area Border Routers

In plain English — editorial summary, not part of the RFC

Open Shortest Path First (OSPF) is a link-state intra-domain routing protocol used for routing in IP networks. Though the definition of the Area Border Router (ABR) in the OSPF specification does not require a router with multiple attached areas to have a backbone connection, it is actually necessary to provide successful routing to the inter-area and external destinations. If this requirement is not met, all traffic destined for the areas not connected to such an ABR or out of the OSPF domain, is dropped. This document describes alternative ABR behaviors implemented in Cisco and IBM routers. This memo provides information for the Internet community.

Document record

Document ID
RFC3509
Published
April 2003
Authors
A. Zinin; A. Lindem; D. Yeung
Status
INFORMATIONAL
Stream
IETF
Area
rtg
Pages
12
Also known as
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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

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canonical URL: /rfc/3509-alternative-implementations-of-ospf-area-border-routers