Re: [Gen-art] Russ's Discs on draft-ietf-pim-port [Was: Gen-ART Telechat review of draft-ietf-pim-port-09.txt]

Suresh Krishnan <suresh.krishnan@ericsson.com> Sat, 26 November 2011 00:37 UTC

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Date: Sat, 26 Nov 2011 19:36:31 -0500
From: Suresh Krishnan <suresh.krishnan@ericsson.com>
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Cc: 'Stig Venaas' <stig@venaas.com>, 'General Area Review Team' <gen-art@ietf.org>, "draft-ietf-pim-port.all@tools.ietf.org" <draft-ietf-pim-port.all@tools.ietf.org>
Subject: Re: [Gen-art] Russ's Discs on draft-ietf-pim-port [Was: Gen-ART Telechat review of draft-ietf-pim-port-09.txt]
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Hi Adrian,

On 11/25/2011 05:03 PM, Adrian Farrel wrote:
> Hi,
> 
> This thread seems to have dried up. AFAICS there is no change needed to the
> document.
> 
> Anything further to say before I ask Russ to clear his Discuss?

I had a chat about this draft with Stig at the IETF meeting in Taipei.
He clarified how PIM PORT connections can be shared across address
families.

I believe the following text change would resolve my concern with the draft.

OLD:
If two neighbors announce the same transport (TCP or SCTP) and the same
Connection IDs in the IPv4 and IPv6 Hello messages, then only one
connection is established and is shared. Otherwise, two connections
are established and are used separately.

NEW:
If two neighbors announce the same transport (TCP or SCTP) and the same
Connection IDs in the IPv4 and IPv6 Hello messages, then only one
connection is established and is shared. Otherwise, two connections
are established and are used separately.

Please note that the Connection ID AFI in the PORT Hello Option does not
need to match the address family of PIM Hello message that carries it.
e.g. an IPv6 PIM Hello message could contain a PORT Hello Option with a
TCP Connection ID AFI of 1 (IPv4).

Thanks
Suresh