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Re: draft-kompella-l2vpn-vpls-multihoming-01

Bhupesh Kothari <bhupesh@juniper.net> Wed, 06 August 2008 19:08 UTC

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To: HENDERICKX Wim <wim.henderickx@alcatel-lucent.be>
Subject: Re: draft-kompella-l2vpn-vpls-multihoming-01
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Date: Wed, 06 Aug 2008 12:09:02 -0700
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From: Bhupesh Kothari <bhupesh@juniper.net>
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HENDERICKX Wim <wim.henderickx@alcatel-lucent.be> wrote:
> > As you mentioned below we should extend the solution with a MAC flush 
> > capability like LDP does today.
> 
> Yes, we'll add the explicit flush.  The explicit flush capability
> provides optimization at the expense of more state in the control plane
> as now the PEs need to track the MACs learned in forwarding so that
> those can be withdrawn later on.
> 
> 
> WH> How would this work? E.g. in the example we use PE3 has no awareness
> of the Mac @ belonging to which CE on a given PE.
> 

I should have been more clear.  A MAC flush message from PE1 containing a list
of MACs will be sufficient for this purpose.

Bhupesh

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