@misc{rfc5250, series = {Request for Comments}, number = 5250, howpublished = {RFC 5250}, publisher = {RFC Editor}, doi = {10.17487/RFC5250}, url = {https://www.rfc-editor.org/info/rfc5250}, author = {Rob Coltun and Alex D. Zinin and Igor Bryskin and Lou Berger}, title = {{The OSPF Opaque LSA Option}}, pagetotal = 17, year = 2008, month = jul, abstract = {This document defines enhancements to the OSPF protocol to support a new class of link state advertisements (LSAs) called Opaque LSAs. Opaque LSAs provide a generalized mechanism to allow for the future extensibility of OSPF. Opaque LSAs consist of a standard LSA header followed by application-specific information. The information field may be used directly by OSPF or by other applications. Standard OSPF link-state database flooding mechanisms are used to distribute Opaque LSAs to all or some limited portion of the OSPF topology. This document replaces RFC 2370 and adds to it a mechanism to enable an OSPF router to validate Autonomous System (AS)-scope Opaque LSAs originated outside of the router's OSPF area. {[}STANDARDS-TRACK{]}}, }