[c-nsp] OSPF support to MPLS

Oliver Boehmer (oboehmer) oboehmer at cisco.com
Fri Mar 14 08:32:16 EDT 2008


Oliver Boehmer (oboehmer) <> wrote on Friday, March 14, 2008 1:21 PM:

> Murilo Antonio Pugliese <> wrote on Friday, March 14, 2008 1:10 PM:
> 
>> Folks.
>> 
>> I wonder if a MPLS domain may get extended though many OSPF areas
>> (belonging to the same OSPF process)?
> 
> sure, just make sure your edge devices know the loopback/BGP next-hop
> for all other PE devices in other areas (i.e. don't summarize the
> loopback address range at the ABR or don't just advertise a default).
> 

forgot to add one thing: MPLS traffic-engineering in a multi-area
network has several restrictions (as the headends no longer have full
visibility), but if you're just using L2VPN or L3VPN, this will continue
to work..

	oli


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