Greetings, The main changes to the WG version of this draft are: a) tweaks that resulted from the initial public review of the BACnet MS/TP change proposal, the most significant being the COBS encoding of data and data crc fields to remove preamble sequences; and b) addition of two informative appendices to provide code examples for the data crc and COBS encoder/decoder. These appendices are insufficient to implement the data link, but are provided e.g. for those writing Wireshark dissectors or otherwise wanting more detail about over- the-wire format.
I'd like to solicit specific comments on what is needed to move this draft forward - IOW, what would you like to see added in order for this draft to be ready for WGLC? For anyone who'd like to view the details of data link state machines, etc., I can provide the relevant clause (9) of the ASHRAE 135-2010 (BACnet) spec, as well as the MS/TP change proposal (Addendum an). Thanks, -K- On Mon, Mar 12, 2012 at 1:06 PM, <internet-dra...@ietf.org> wrote: > > A New Internet-Draft is available from the on-line Internet-Drafts > directories. This draft is a work item of the IPv6 Maintenance Working Group > of the IETF. > > Title : Transmission of IPv6 over MS/TP Networks > Author(s) : Kerry Lynn > Jerry Martocci > Carl Neilson > Stuart Donaldson > Filename : draft-ietf-6man-6lobac-01.txt > Pages : 20 > Date : 2012-03-12 > > MS/TP (Master-Slave/Token-Passing) is a contention-free access method > for the RS-485 physical layer that is used extensively in building > automation networks. This document describes the frame format for > transmission of IPv6 packets and the method of forming link-local and > statelessly autoconfigured IPv6 addresses on MS/TP networks. > > > A URL for this Internet-Draft is: > http://www.ietf.org/internet-drafts/draft-ietf-6man-6lobac-01.txt > > Internet-Drafts are also available by anonymous FTP at: > ftp://ftp.ietf.org/internet-drafts/ > > This Internet-Draft can be retrieved at: > ftp://ftp.ietf.org/internet-drafts/draft-ietf-6man-6lobac-01.txt > > -------------------------------------------------------------------- > IETF IPv6 working group mailing list > ipv6@ietf.org > Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 > -------------------------------------------------------------------- -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
