The IESG has approved the following document: - 'OSPFv3 LSA Extendibility' (draft-ietf-ospf-ospfv3-lsa-extend-23.txt) as Proposed Standard This document is the product of the Open Shortest Path First IGP Working Group. The IESG contact persons are Alvaro Retana, Alia Atlas and Deborah Brungard. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-ospf-ospfv3-lsa-extend/ Technical Summary This document extends the OSPFv3 LSA format by encoding the existing OSPFv3 LSA information in Type-Length-Value (TLV) tuples and allowing advertisement of additional information with additional TLVs. Backward compatibility mechanisms are also described. Working Group Summary There has been significant discussion of the draft by the authors and the vendors implementing the draft (Nokia and Huawei). There have been numerous iterations and the backward compatibility scenarios have been simplified. Document Quality The document has been implemented by a couple vendors and several OSPFv3 extensions are based on this document. It has been stable for more than a year with only a couple minor encoding corrections. Personnel Peter Psenak is the Document Shepherd. Alia Atlas is the Responsible Area Director.