The IESG has approved the following document: - 'Transparent Interconnection of Lots of Links (TRILL): MTU Negotiation' (draft-ietf-trill-mtu-negotiation-08.txt) as Proposed Standard This document is the product of the Transparent Interconnection of Lots of Links 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-trill-mtu-negotiation/ Technical Summary The base IETF TRILL protocol has a TRILL campus-wide MTU feature, specified in RFC 6325 and RFC 7177, that assures that link state changes can be successfully flooded throughout the campus while being able to take advantage of a campus-wide capability to support jumbo packets. This document specifies recommended updates to that MTU feature to take advantage, for appropriate link-local packets, of link-local MTUs that exceed the TRILL campus MTU. In addition, it specifies an efficient algorithm for local MTU testing. This document updates RFC 6325, updates RFC 7177, and updates RFC 7780. Working Group Summary WG consensus was reasonable. Document Quality Shepherd's review and RTG-DIR review Personnel Shepherd: Susan Hares AD: Alia Atlas