[rfc-dist] RFC 4812 on OSPF Restart Signaling
rfc-editor at rfc-editor.org
Wed Mar 21 02:12:36 PDT 2007
A new Request for Comments is now available in online RFC libraries.
Title: OSPF Restart Signaling
Author: L. Nguyen, A. Roy,
Date: March 2007
Mailbox: lhnguyen at cisco.com,
akr at cisco.com,
alex.zinin at alcatel-lucent.com
I-D Tag: draft-nguyen-ospf-restart-06.txt
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.
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