The IESG has received a request from the Transparent Interconnection of Lots of Links WG (trill) to consider the following document: - 'TRILL: RBridge Channel Header Extension' <draft-ietf-trill-channel-tunnel-10.txt> as Proposed Standard The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2016-07-21. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract The IETF TRILL (Transparent Interconnection of Lots of Links) protocol includes an optional mechanism (specified in RFC 7178) called RBridge Channel for the transmission of typed messages between TRILL switches in the same campus and the transmission of such messages between TRILL switches and end stations on the same link. This document specifies extensions to the RBridge Channel protocol header to support two features as follows: (1) a standard method to tunnel payloads whose type can be indicated by Ethertype through encapsulation in RBridge Channel messages; and (2) a method to support security facilities for RBridge Channel messages. This document updates RFC 7178. There is a normative reference to RFC 5869, which is an Informational RFC, so this is a DownRef to a document which isn't yet in the DownRef Registry. This DownRef was missed during the first IETF Last Call, so this is a new Last Call focused on the DownRef. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-trill-channel-tunnel/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-ietf-trill-channel-tunnel/ballot/ No IPR declarations have been submitted directly on this I-D.