Re: MPLS, disjointed OSPF area 0 and sham link

Configs?

On Tue, Mar 23, 2010 at 21:10, Ivan Hrvatska <ivanzghr_at_gmail.com> wrote:
> OK. I figured out some of it. At least one PE router has to have
> connection to area 0, so I configured virtual-link between CE1 and PE,
> and now PE routers now exchange OSPF routes between sites,
> Another problem is configuring sham link. I configured two new
> loopbacks, advertised them into BGP, configured sham link between
> those loopbacks and I get this:
>
> R4#
> *Mar 23 21:10:25.065: %OSPF-5-ADJCHG: Process 2, Nbr 9.9.5.5 on
> OSPF_SL1 from LOADING to FULL, Loading Done
> R4#
> *Mar 23 21:10:34.693: %OSPF-5-ADJCHG: Process 2, Nbr 9.9.5.5 on
> OSPF_SL1 from FULL to DOWN, Neighbor Down: Interface down or detached
> R4#
> *Mar 23 21:10:45.081: %OSPF-5-ADJCHG: Process 2, Nbr 9.9.5.5 on
> OSPF_SL1 from LOADING to FULL, Loading Done
> R4#
> *Mar 23 21:10:54.693: %OSPF-5-ADJCHG: Process 2, Nbr 9.9.5.5 on
> OSPF_SL1 from FULL to DOWN, Neighbor Down: Interface down or detached
>
>
> ??? Anybody?
>
> On Tue, Mar 23, 2010 at 8:45 PM, Ivan Hrvatska <ivanzghr_at_gmail.com> wrote:
>> Guys, what about this scenario (I posted as reply on older mail, but
>> no answer, so here it is again):
>>
>> Lo0 B B B B B B B B B B B B B Lo0
>> B | B B B B B B B B B B B B B B B |
>> PE---------eigrp---------PE
>> B | B B B B B B B B B B B B B B |
>> B | B B B B B B B B B B B B B B |
>> Ar1 B B B B B B B B B B B B Ar2
>> B | B B B B B B B B B B B B B B |
>> CE1 B B B B B B B B B B B B CE2
>> B | B B B B B B B B B B B B B B B |
>> Ar0 B B B B B B B B B B B B B Ar2
>> B | B B B B B B B B B B B B B B B |
>> B | B B B B B B B B B B B B B B B |
>> RT1---------Ar2----- ----RT2
>> | B B B B B B B B B B B B B B B |
>> B \--------backdoor---------
>>
>>
>> CE1 - PE running OSPF in vrf VPN-A
>> CE2 - PE running OSPF in vrf VPN-A
>>
>> Loopback interfaces of PE routers are in EIGRP domain and MPLS is
>> using them as transport addresses (mpls ID).
>>
>> Provider has EIGRP in his core network. Not one PE router has
>> connection to Area 0. How to solve that problem so that VPN sites can
>> exchange OSPF routes. After that, it is neccesary to make sure that
>> customer traffic goes through the MPLS clooud, not backdoor link.
>> My problem is how to solve problem with non-area0 connecting to PE
>> routers and how tu use sham-link after that. No static routes allowed
>> :)
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html

Blogs and organic groups at http://www.ccie.net
Received on Tue Mar 23 2010 - 21:27:18 ART