Tom:

I'll drop a note to official liaison for IEEE is a good idea, and other IEEE
members of 802.1 I know.  Thank you for that input. 

The I2RS L2 protocol topology is the protocol independent topology.  Just as
Alexander Clemm points out that the L3 topology may be a virtual composite
of either the static setting or a combination of the protocol specific
topologies, the L2 topology is a virtual composite of the lower L2
topologies.  

Sue Hares 

-----Original Message-----
From: i2rs [mailto:i2rs-boun...@ietf.org] On Behalf Of Thomas D. Nadeau
Sent: Monday, April 06, 2015 3:32 PM
To: Juergen Schoenwaelder
Cc: i2rs@ietf.org; Romascanu, Dan (Dan); Susan Hares; Dongjie (Jimmy)
Subject: Re: [i2rs] 2 week WG adoption call for
draft-dong-i2rs-l2-network-topology-01.txt


> On Apr 6, 2015:11:17 AM, at 11:17 AM, Juergen Schoenwaelder
<j.schoenwael...@jacobs-university.de> wrote:
> 
> On Mon, Apr 06, 2015 at 09:11:39AM -0400, Susan Hares wrote:
>> This begins a 2 week adoption call for 
>> draft-dong-i2rs-l2-network-topology-01.
>> 
>> Please indicate in your comments "support" or "no support" and 
>> discuss how this draft will allow I2RS client-agent pairs to query 
>> information about L2 topology.  The draft can be found at:
>> 
>> http://datatracker.ietf.org/doc/draft-dong-i2rs-l2-network-topology/
>> 
>> <http://datatracker.ietf.org/doc/draft-clemm-i2rs-yang-l3-topo/>
> 
> I wonder how this will interwork with any possible IEEE work. Bridges 
> and VLANs had been modeled as MIBs back in a day but we meanwhile 
> transferred work all over to IEEE. I think there should be some IEEE 
> liaison interaction here.

        There has been indication at least, that the IEEE was going to
embark on this work to reflect the L2/bridge MIB work that went on there.
But as you say, there has been no official liaison to the IETF on this.
Perhaps Dan (CC:ed) knows?

        --Tom


> I also wonder to what extend this data model is repeating things that 
> are already in the interfaces abstraction we have. There is no mention 
> of RFC 7223 yet there is overlap.
> 
> There are many other things I do not understand. Why is a chassis-id a 
> mac-address (and how relates this notion of a chassis to the physical 
> entity modeling work). How is this going to be implemented? Is the 
> idea that the information is extracted out of a briding process or do 
> protocols such as layer two discovery protocols like LLDP play a role 
> here? In short, I think this model needs some decent IEEE layer two 
> expertise - so does this really fall into the scope of I2RS?
> 
> /js
> 
> -- 
> Juergen Schoenwaelder           Jacobs University Bremen gGmbH
> Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
> Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>
> 
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