Re: Query related to Auto Discovery as in draft-ietf-l3vpn-2547bis-mcast-07.txt

[Subinoy Das <[e-mail]>]

Thanks for answer. I still have confision about the exact process..

If local policy states to discard route if RT does not match Import then what happen if new VPN support is added to a PE? How does it comes to know all routes for that VPN? Should all other PEs send I-PMSI A-D Route, S-PMSI A-D Route, Source Active A-D Route, C-Multicast Route to that PE?

Thanks,
Subinoy

________________________________
From: Yakov Rekhter <[e-mail]>
To: Subinoy Das <[e-mail]>
Cc: L3VPN MAIL <[e-mail]>
Sent: Wednesday, 26 November, 2008 7:29:21 PM
Subject: Re: Query related to Auto Discovery as in draft-ietf-l3vpn-2547bis-mcast-07.txt

Subinoy,

> Hi,
> 
> I have one query about Auto Discovery using BGP to exchange multicast
> route in provider network.
> 
> When a PE receives Intra-AS I-PMSI A-D route it matches Import RT
> of all VRF it supports with all RTs in the packet. If no match found
> then what does PE do? Is it stores the information in database or
> just discard the packet?

It is a matter of local policy on the PE. Not that much different
from the scenario where a PE receives a (unicast) VPN-IPv4 route
whose RT does not match Import RT of any of the VRFs on the PE.

Yakov.



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