On Sep 24, 2012:9:38 AM, at 9:38 AM, "NAPIERALA, MARIA H" <[email protected]>
wrote:
> Tom,
>
> decoupling PE control plane from the forwarding function has many advantages
> but mainly it substantially increases operational scale - PE/control element
> is able to control multiple (1000+) compute nodes spread across different
> servers and other devices. The software complexity (e.g., managing policy
> functions, gathering of operational information like stats, events,
> diagnostics, etc.) is implemented in the control plane elements only. These
> reduce overall cost of a data center deployment.
Why do you not think that using EVPN as the control plane to signal
VXlan and NVGRE is not an example of separated forwarding and control plane
functions? All of the advantages you listed above are available in the
solution proposed.
> In addition, having an open protocol between a control plane and a forwarding
> plane of a PE allows sending local forwarding rules to forwarding device(s).
> XMPP is an open standard, light-weight, extendable (can carry various data
> objects), and flexible protocol known to application environment.
Do you think that BGP or any of the other technologies described in the
draft are not open standards?
--Tom
>
> Maria
>
>> -----Original Message-----
>> From: Thomas Nadeau [mailto:[email protected]]
>> Sent: Thursday, September 20, 2012 7:23 PM
>> To: NAPIERALA, MARIA H; Yakov Rekhter
>> Cc: [email protected]; Stiliadis, Dimitrios (Dimitri); Aldrin Isaac; Thomas
>> Nadeau
>> Subject: Re: [nvo3] draft-drake-nvo3-evpn-control-plane
>>
>>
>> Maria,
>>
>> The only issue that is being raised seems to be one of which
>> control
>> plane to run, not whether or not we need one. I think everyone agrees
>> on
>> that. In the way of BGP versus XMPP, perhaps you could elaborate why
>> you
>> think BGP is a bad choice?
>>
>> --Tom
>>
>>
>> On 9/20/12 8:41 AM, "NAPIERALA, MARIA H" <[email protected]> wrote:
>>
>>>>
>>>> Do you think that an NVE that implements only XMPP has no control
>> plane
>>>> at all ?
>>>
>>> It does not implement the (BGP) control plane of the overlay (e.g.,
>> route
>>> selection should be done on a controller and not on the NVE), and it
>>> should not directly participate in any other routing protocols.
>>>
>>> Maria
>>> _______________________________________________
>>> nvo3 mailing list
>>> [email protected]
>>> https://www.ietf.org/mailman/listinfo/nvo3
>
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