I'll let the TRILL folks speak for themselves, but I would politely suggest that you keep your hands off SPB.

So far as SPB is concerned ISIS is a protocol for ensuring that all participants converge on the same data as the basis of performing the necessary topology and related calculations. Those calculations are specified by the IEEE. Some of the data shared, and the way in which the calculations are performed, has a close relationship with interoperability with parts of the bridged/switched network where other topology protocols operate. The fact that ISIS is employed as part of the solution is not an invitation for others to "enhance"/rework/invent anew or otherwise muck with the current standards.

If there is any doubt about this I can no doubt arrange for the point to be made more forcefully.

Mick Seaman



On 3/26/2013 7:22 PM, Mingui Zhang wrote:
Now that you mention it, datacenter or campus LANs would appear to be the
biggest wins in terms of power and raw numbers of interfaces.
IEEE seems like a better match in that case.  No idea if there are things going
on in that venue.
As for "datacenter or campus LANs", I'd mention that ISIS can be used as the 
control protocol (e.g., TRILL and SPB). This is an area that matches IETF.

Mingui


-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of
Tony Tauber
Sent: Wednesday, March 27, 2013 9:15 AM
To: Shane Amante
Cc: [email protected]
Subject: Re: I-D Action: draft-retana-rtgwg-eacp-01.txt

On Tue, Mar 26, 2013 at 12:05 PM, Shane Amante <[email protected]>
wrote:



        Thus, the only practical application I can see of power savings would 
be on
copper interfaces at the deepest "edge" of the network, (U-PE to CE), but
there's no active routing protocols on those interfaces.  And, although there's
Layer-2 control protocols, e.g.: LLDP and the MEF's "Ethernet LMI", but I've not
seen either of those achieve widespread deployment mostly because the CE
devices do not support it, (yet).  But, we're the IETF, not the IEEE nor the
MEF ... so, I'm not clear what the IETF would be able to work on here.


Now that you mention it, datacenter or campus LANs would appear to be the
biggest wins in terms of power and raw numbers of interfaces.
IEEE seems like a better match in that case.  No idea if there are things going
on in that venue.

Tony
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