[ssm] summary of changes in draft-ietf-ssm-arch-07.txt
Hugh Holbrook <holbrook@cs.stanford.edu> Wed, 05 October 2005 21:28 UTC
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Date: Wed, 05 Oct 2005 14:28:27 -0700
From: Hugh Holbrook <holbrook@cs.stanford.edu>
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Subject: [ssm] summary of changes in draft-ietf-ssm-arch-07.txt
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Ok, draft-ietf-ssm-arch-07.txt is now available in the ID archives. I am optimistic that this version can pass through the IESG review. A nice colorized rfcdiff html page indicating what changed between the -06 version and the -07 draft is available at this page: http://thoop.net/ssm/draft-ietf-ssm-arch-07-from-6.diff.html The rest of this mail summarizes all the changes in the -07 version. My first submission yesterday got rejected by the idnits bot because it had stale boilerplate. I fixed that and discovered that the document is now over 15 pages, so idnits complained that it lacked a table of contents, which I added. While I was trying to convince nroff to generate a ToC, I did one more pass over the IESG review comments to identify anything that might block the passage through the IESG review. In doing so I realized that I had not yet responded fully to Spencer Dawkins' gen-arts review, so I added a few sentences in response to his review. I sent them to Spencer, and he seemed happy with my proposed changes. One of the comments he made was asking for clarification why 232.0.0.0 is a reserved address that IANA should not allocate. [The original motiviation for this was to have one "reserved" address that is unused, which can be convenient in an implementation, similar to the way that 224.0.0.0 is reserved for ASM. Steve Deering originally suggested this, I think.] So I added some text to 4.3 to clarify. While editing that section, I remembered a comment that someone made along the way (I think it was Alex or maybe Pekka) asking why there isn't an IPv6 reserved address for the same reason. This is basiclaly just an oversight, and I think this issue could legitimately come up in the IESG review, so I added some text to 4.3 (SSM address allocation) and Section 9 (IANA considerations) to give FF3x::4000:0000 consideration similar to 232.0.0.0. FF3x::4000:0000 comes out of the space that is already reserved for IANA allocation, so I don't think this has any operational or practical impact for anyone who is compliant with the current draft. But if anyone has any opinion on this (either way) I'd appreciate your input at this point, since this is the one change in this revision that is not basically a clarification. Spencer also requested a clarification as to how a receiver can detect the SPI collision problem (documented in Section 7.2). So I added one sentence to section 7 explaining this. The only other change in the -07 version that weren't in the diffs I sent out yesterday is to add a table of contents, and to update a few of the references. [And of course there are the changes I mentioned in yesterday's mail -- the primary one of which adding section 7.1 and the moving of the text that was in 7.1 to 7.2, to address the security DISCUSS.] -Hugh ---------- Forwarded message ---------- From: Internet-Drafts@ietf.org <Internet-Drafts@ietf.org> Date: Oct 5, 2005 12:50 PM Subject: [ssm] I-D ACTION:draft-ietf-ssm-arch-07.txt To: i-d-announce@ietf.org Cc: ssm@ietf.org A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Source-Specific Multicast Working Group of the IETF. Title : Source-Specific Multicast for IP Author(s) : H. Holbrook, B. Cain Filename : draft-ietf-ssm-arch-07.txt Pages : 18 Date : 2005-10-5 IP version 4 (IPv4) addresses in the 232/8 (232.0.0.0 to 232.255.255.255) range are designated as source-specific multicast (SSM) destination addresses and are reserved for use by source-specific applications and protocols. For IP version 6 (IPv6), the address prefix FF3x::/32 is reserved for source-specific multicast use. This document defines an extension to the Internet network service that applies to datagrams sent to SSM addresses and defines the host and router requirements to support this extension. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-ssm-arch-07.txt To remove yourself from the I-D Announcement list, send a message to i-d-announce-request@ietf.org with the word unsubscribe in the body of the message. You can also visit https://www1.ietf.org/mailman/listinfo/I-D-announce to change your subscription settings. Internet-Drafts are also available by anonymous FTP. Login with the username "anonymous" and a password of your e-mail address. After logging in, type "cd internet-drafts" and then "get draft-ietf-ssm-arch-07.txt". A list of Internet-Drafts directories can be found in http://www.ietf.org/shadow.html or ftp://ftp.ietf.org/ietf/1shadow-sites.txt Internet-Drafts can also be obtained by e-mail. Send a message to: mailserv@ietf.org. In the body type: "FILE /internet-drafts/draft-ietf-ssm-arch-07.txt". NOTE: The mail server at ietf.org can return the document in MIME-encoded form by using the "mpack" utility. To use this feature, insert the command "ENCODING mime" before the "FILE" command. To decode the response(s), you will need "munpack" or a MIME-compliant mail reader. Different MIME-compliant mail readers exhibit different behavior, especially when dealing with "multipart" MIME messages (i.e. documents which have been split up into multiple messages), so check your local documentation on how to manipulate these messages. Below is the data which will enable a MIME compliant mail reader implementation to automatically retrieve the ASCII version of the Internet-Draft. _______________________________________________ ssm mailing list ssm@ietf.org https://www1.ietf.org/mailman/listinfo/ssm _______________________________________________ ssm mailing list ssm@ietf.org https://www1.ietf.org/mailman/listinfo/ssm
- [ssm] summary of changes in draft-ietf-ssm-arch-0… Hugh Holbrook