Hi Tom,

Thank you for the comments. Please see inline.

> -----Original Message-----
> From: Thomas Narten [mailto:[email protected]]
> Sent: Friday, December 14, 2012 11:58 AM
> To: Lucy yong
> Cc: [email protected]
> Subject: Re: [nvo3] FW: New Version Notification for draft-yong-nvo3-
> frwk-dpreq-addition-00.txt
> 
> Hi Lucy.
> 
> Lucy yong <[email protected]> writes:
> 
> > IMO: this is the reason why we need to define a new service type for
> > this.
> 
> I've tried following this thread and have also read the draft. I admit
> to having difficulty understanding what the actual issue is or what
> text is being asked for in the framework document.
> 
> It sounds to me like the crux of the issue is that for the case of
> providing L3 (IP) service to Tenant Systems (TSs), there are two
> sub-cases:
> 
>  - all the TSs are on the same subnet, so they all can reach each
>    other without going through a router
> 
>  - TSs are on different IP subnets, with the collection of those
>    subnets comprising a single NVO3 Virtual Network.
> 
> Are you saying we need a different "service type" to distinguish those
> two cases? If so, what do you mean by "service type"?
[Lucy] No, this is not what I mean. I mean we need a new service type to be 
able to support
a single NVo3 virtual network that contains both cases via a L2 interface.
> 
> I think of NVO3 providing either an L2 or L3 service to TSes. I.e., 2
> different types of service. Are you proposing that the L3 case be
> split into two subcases?
[Lucy] L2 service assumes a L2 interface and L3 service assume a L3 interface. 
VM has L2 interface only.
This is about to address VM communication in a single nvo3 virtual network. 
assumption is to not change VM network function.  
> 
> If so, I agree that the two subcases are different, but I've always
> thought of them as being the same service. I.e., that L3 service would
> handle both cases. Why would we want to split them into different
> "services"? And in any case, one could look at the first case (just
> one subnet) as just being a special case of the second case, so why
> handle it specially?
[Lucy] But L3 service requires L3 interface between PE and CE. Do we want to 
change VM and vswitch to support that? 
> 
> Do I understand correctly?
[Lucy] Hope it is not.

Regards,
Lucy
> 
> Thomas

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