RFC 4811

OSPF Out-of-Band Link State Database (LSDB) Resynchronization, March 2007

Canonical URL:
https://www.rfc-editor.org/rfc/rfc4811.txt
File formats:
Plain TextPDF
Status:
INFORMATIONAL
Authors:
L. Nguyen
A. Roy
A. Zinin
Stream:
IETF
Source:
NON WORKING GROUP

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC4811

Discuss this RFC: Send questions or comments to iesg@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

OSPF is a link-state intra-domain routing protocol used in IP networks. Link State Database (LSDB) synchronization in OSPF is achieved via two methods -- initial LSDB synchronization when an OSPF router has just been connected to the network and asynchronous flooding that ensures continuous LSDB synchronization in the presence of topology changes after the initial procedure was completed. It may sometime be necessary for OSPF routers to resynchronize their LSDBs. The OSPF standard, however, does not allow routers to do so without actually changing the topology view of the network. This memo describes a vendor-specific mechanism to perform such a form of out-of-band LSDB synchronization. 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.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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