Re: VPLS model for L2VPN Framework document

Muneyoshi Suzuki <[email protected]> Fri, 30 May 2003 13:27:37 +0900 (JST)
Newsgroups gmane.ietf.ppvpn
Message-ID <[email protected]>
> The  way the  framework document  is written,  it seems  to suggest  that an
> "emulated LAN"  is the as a "VPLS  instance", which in turn  suggests that a
> single  MSTP instance  cannot govern  multiple  VPLS instances.   So I  just
> wanted to  make it clearer that  an emulated LAN  could consist of a  set of
> VPLS instances plus  an MSTP instance; I think this  would remove Mick's and
> Norm's objection.  

It seems to me, something is still confusing. What is different between
emulated LAN and VPLS instance? Could you clarify this?

Regarding the framework model, if a single PE contains multiple logical
Bridges, a single VPLS Forwarder cannot be shared by Bridges. In this
case, a PE must contain multiple logical Bridges and VPLS Forwarders. Each
Bridge may have a single MSTP instance, and the instances interwork through
VPLS Forwarders. I can't see any problem in this model. (Needless to say,
if the VPLS Forwarders is supported by full mesh, there is a big issue ;-)

Thanks,


Muneyoshi Suzuki
Nippon Telegraph and Telephone Corp.