RFC 4812: OSPF Restart Signaling
In plain English — editorial summary, not part of the RFC
OSPF is a link-state intra-domain routing protocol used in IP networks. Routers find new and detect unreachable neighbors via the Hello subprotocol. Hello OSPF packets are also used to ensure two-way connectivity within time. When a router restarts its OSPF software, it may not know its neighbors. If such a router sends a Hello packet on an interface, its neighbors are going to reset the adjacency, which may not be desirable in certain conditions. This memo describes a vendor-specific mechanism that allows OSPF routers to inform their neighbors about the restart process. Note that this mechanism requires support from neighboring routers. The mechanism described in this document was proposed before Graceful OSPF Restart, as described in RFC 3623, came into existence. It is implemented/supported by at least one major vendor and is currently deployed in the field. The purpose of this document is to capture the details of this mechanism for public use. This mechanism is not an IETF standard. This memo provides information for the Internet community.
Document record
- Document ID
- RFC4812
- Published
- March 2007
- Authors
- L. Nguyen; A. Roy; A. Zinin
- Status
- INFORMATIONAL
- Stream
- IETF
- Area
- —
- Pages
- 7
- Also known as
- —
Topics
Related documents
Ranked automatically by shared keywords, IETF area and stream — not by editorial selection.
- RFC 4811OSPF Out-of-Band Link State Database (LSDB) ResynchronizationUpdated
March 2007
- RFC 4813OSPF Link-Local SignalingObsoleted
March 2007
- RFC 4750OSPF Version 2 Management Information BaseCurrent
December 2006
- RFC 4915Multi-Topology (MT) Routing in OSPFCurrent
June 2007
- RFC 4940IANA Considerations for OSPFCurrent
July 2007
- RFC 4970Extensions to OSPF for Advertising Optional Router CapabilitiesObsoleted
July 2007
- RFC 4577OSPF as the Provider/Customer Edge Protocol for BGP/MPLS IP Virtual Private Networks (VPNs)Current
June 2006
- RFC 4552Authentication/Confidentiality for OSPFv3Current
June 2006
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