[c-nsp] OSPF inside VRF - Cisco Juniper Interoperability

[Oliver Boehmer (oboehmer)]

Junaid <> wrote on Wednesday, August 27, 2008 11:12 AM:

> Hi,
> 
> I am caught up in what seems to be a Juniper Cisco interoperability
> issue. I am running OSPF with customer inside VRF. Topology is
> something like the following:
> 
> CE1 ---[Area 0]--- PE1 ---- P1 --- P2 --- PE2 ---[Area 6]--- CE2
> 
> The two P routers are acting as route reflectors.
> 
> CE1, CE2 and PE1 are Cisco devices while rest are Juniper M-series
> routers. The problem I am facing is that CE1 routes received at CE2
> are Inter-area which is what is required (no redistribution into OSPF
> is done on CE1 and CE2). However, CE2 routes received by CE1 are Type
> 5 (E1). The documentation states that inorder to preserve the route
> types, domain IDs should be same on both PE routers. I have set domain
> ID to be 1.1.1.1:512, this was done on cisco via the command:
> "domain-id type 0105 value 010101010200" and on juniper as: "domain-id
> 1.1.1.1:512" in the OSPF configuration inside the VRF. Also on Juniper
> the domain-id was added into the ospf routes when redistributing them
> into MBGP.
> 
> The problem seems to be with the Cisco PE1 router that can't seem to
> interpret the route-type attribute generated by Juniper (seen in the
> output as 0x306:0:393472):
[...]

> Any idea what is causing this behavior? Any solution? Will appreciate
> any help. 

which release are you using on he PE1? You might be hitting CSCsg42488
(Juniper - Cisco PE incorrect extended community for OSPF).

	oli