[rbridge] Fwd: DISCUSS and COMMENT: draft-ietf-trill-rbridge-protocol

[Donald Eastlake]

Sorry for a couple of typos fixed below...

On Wed, Jan 20, 2010 at 3:22 PM, Donald Eastlake <d3e3e3 at gmail.com> wrote:

> See below,
>
> On Wed, Jan 20, 2010 at 2:10 PM, Erik Nordmark <erik.nordmark at sun.com>wrote:
>>
>> -------- Original Message --------
>> Subject: DISCUSS and COMMENT: draft-ietf-trill-rbridge-protocol
>> Date: Wed, 20 Jan 2010 00:24:05 -0800 (PST)
>> From: Pasi Eronen <pasi.eronen at nokia.com>
>> To: iesg at ietf.org
>> CC: trill-chairs at tools.ietf.org,
>> draft-ietf-trill-rbridge-protocol at tools.ietf.org
>>
>> Discuss:
>> I have reviewed draft-ietf-trill-rbridge-protocol-14, and have one
>> questions that I'd like to discuss before recommending approval of
>> the document:
>>
>> Section 4.7 says "RBridges do not need to announce themselves as
>> listeners to the All-Snoopers multicast group (the group used for MRD
>> reports [RFC4541]), because the IP multicast address for that group is
>> in the range where all frames sent to that IP multicast addresses must
>> be broadcast."
>>
>> Isn't this true only for IPv4, but not IPv6? (RFC 4541 seems to
>> broadcast 224.0.0.106, but not FF02::6A)
>>
>
>
> I've looked at the relevant RFCs and I believe Pasi is correct. It should
> say something like
>
> "RBridges does not need to announce themselves as listeners to the IPv4
> All-Snoopers multicast
>

does -> do


> group (the group used for MRD reports [RFC4541]), because the IPv4
> multicast address for that group is in the range where all frames sent to
> that IP multicast addresses must be broadcast. However, RBridges the
> implement IPv6 derived multicast optimization MUST announce
>

the -> that


> themselves as listeners to the IPv6 All-Snoopers multicast group."
>
> Does any have a problem with that wording?
>
>
>> Comment:
>> I found the document surprisingly well-written and easy to
>> understand (despite the complex topic).
>>
>
> Thanks,
> Donald
> =============================
> Donald E. Eastlake 3rd   +1-508-634-2066 (home)
> 155 Beaver Street
> Milford, MA 01757 USA
> d3e3e3 at gmail.com
>

Thanks,
Donald
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