Re: ISIS Level-11 router + MPLS Labels for Level-2 Loopbacks

Sorry, one more thing you could do is inject 0/0 from PE2 so that PE1 has it. Then your label path for the default
route should work from PE1 to PE2.

> -------Original Message-------
> From: Roman Rodichev <romangs_at_iementor.com>
> To: Service Provider <service.providersa_at_gmail.com>, Cisco certification <comserv_at_groupstudy.com>, Cisco
certification <ccielab_at_groupstudy.com>
> Subject: Re: ISIS Level-11 router + MPLS Labels for Level-2 Loopbacks
> Sent: Feb 09 '10 15:25
>
> label for default route won't help because the entire LSP path must be for _a specific and the same_ route, in
this
> case PE2's loopback. You can't have an LSP path where routes change along the path, 0/0 from PE1 to P, and
> PE2/32 from P to PE2. The path must be PE2/32 from PE1 to P and PE2/32 from P to PE2.
>
> Having said that, PE2's loopback must be in PE1's routing table. What's wrong with L2 to L1 redistribution?
>
> Regards,
>
> Roman Rodichev
> 6xCCIE #7927 (R&S, Security, Voice, Storage, Service Provider, Wireless)
> Instructor, Content Developer
> ieMentor Corporation http://www.iementor.com
> Y!M: roman7927
>
>
>
> >B B -------Original Message-------
> >B B From: Service Provider <service.providersa_at_gmail.com>
> >B B To: Cisco certification <comserv_at_groupstudy.com>, Cisco certification <ccielab_at_groupstudy.com>
> >B B Subject: ISIS Level-11 router + MPLS Labels for Level-2 Loopbacks
> >B B Sent: Feb 09 '10 15:14
> >B B
> >B B Hi guys
> >B B
> >B B I have a scenario where one of the PE routers is a Level-1 and connects to a
> >B B P router which is L1L2. The problem is that the L1 has a default route from
> >B B the P router, which if fine, but I'm unable to have end-to-end reachability
> >B B between the CE routers. I am only able to achieve this when I redistribute
> >B B Level-2 routes into Level-1 on the P router. I have configure the Level-1
> >B B router to generate the label(s) for the default route but I still don't have
> >B B connectivity between the CE routers.
> >B B
> >B B CE1-------------PE1-----------------------P----------------------PE1--------------------------CE2
> >B B B B B B B B B B B B B B B B B B B B B B L1B B B B B B B B B B B B B B B B B B B B B BB B L1L2B B B B B B B B B
B B B B B B B B B B B L2
> >B B
> >B B Any assistance will be appreciated.
> >B B
> >B B Thank you
> >B B SP
> >B B
> >B B
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Received on Tue Feb 09 2010 - 15:30:25 ART