The IESG has received a request from the Service Function Chaining WG (sfc) to consider the following document: - 'Operating the Network Service Header (NSH) with Next Protocol "None"' <draft-farrel-sfc-convent-05.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 2018-01-31. 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 This document describes the use of the Network Service Header (NSH) in a Service Function Chaining (SFC) enabled network with no payload data and carrying only metadata. This is achieved by defining a new NSH "Next Protocol" type value of "None". This document illustrates some of the functions that may be achieved or enhanced by this mechanism, but it does not provide an exhaustive list of use cases, nor is it intended to be definitive about the functions it describes. It is expected that other documents will describe specific use cases in more detail and will define the protocol mechanics for each use case. The file can be obtained via https://datatracker.ietf.org/doc/draft-farrel-sfc-convent/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-farrel-sfc-convent/ballot/ No IPR declarations have been submitted directly on this I-D.