Re: VPLS model for L2VPN Framework document

Eric Rosen <[email protected]> Fri, 30 May 2003 10:41:04 -0400
Newsgroups gmane.ietf.ppvpn
Message-ID <[email protected]>
Matt> if you start making fun of me for disagreeing with people... 

The problem  is not that the  L2 guys may  disagree, it's that it's  so hard
(for me) to tell whether they disagree or not ;-)

Eric> I think  the vision  here is that  a service provider's  network might
Eric> consist  of several  Q-in-Q  islands, where  some  VPLS instances  are
Eric> intra-island,  some  are inter-island,  and  some are  inter-provider.
Eric> However, an MSTP instance would always be intra-island, by definition.
Eric> I'm not sure how your model handles this.

Matt> And thats fine for me as well.  xSTP is a protocol that may run over 
Matt> <real|emulated> LANs.  If you have a inter-provider VPLS and choose not 
Matt> to run xSTP over it, thats ok.  xSTP is enabled/disabled per VPLS port 
Matt> (e.g. PE) just as it would be for a real LAN. 

So, if  a PE  has to  support an inter-provider  VPLS and  an intra-provider
VPLS, it would then need to  contain two virtual bridges, one for each VPLS?
That seems  more like my  original model, which  I thought you  didn't agree
with either ;-)