OSPF Restart Signaling

Document Type Expired Internet-Draft (ospf WG)
Authors Alex Zinin  , Abhay Roy  , Liem Nguyen 
Last updated 2001-03-06
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
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Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Unknown
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


OSPF is a link-state intra-domain routing protocol used in IP networks. Routers find new and detect unreachable neighbors via 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 provides a mechanism that allows OSPF routers to inform their neighbors about the restart process. Note that this mechanism requires support from neighboring routers.


Alex Zinin (azinin@cisco.com)
Abhay Roy (akr@cisco.com)
Liem Nguyen (lhnguyen@cisco.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)