[c-nsp] communication between different vrfs on same PE

[Oliver Boehmer (oboehmer)]

Raj Panchal <mailto:raj.panchal at vsnl.co.in> wrote on Tuesday, February
08, 2005 3:48 AM:

> Dear Oliver,
> Thanks for ur reply ,
> Does this means that import/export route-targets on same PE can be
> achieved without MP-BGP sessions
> If you can explain in detail how it works then it would be really gr8

You still need MP-BGP up and running on the PE (with vpnv4 and ipv4-vrf
AF's), and the routes need to be redistributed into BGP. Importing
routes from one VRF to another will use the vpnv4 BGP table, no matter
if the route was originated locally or learned from a distant PE.

	oli

> 
> -----Original Message-----
> From: Oliver Boehmer (oboehmer) [mailto:oboehmer at cisco.com]
> Sent: Monday, February 07, 2005 4:58 AM
> To: Raj Panchal; cisco-nsp at puck.nether.net
> Subject: RE: [c-nsp] communication between different vrfs on same PE
> 
> 
>> I have three customer vpn vrf on my PE-A . This vrf are named as
>> vrf-red , vrf-blue, vrf-green . There are three CE routers for these
>> three customers on the same PE . All the customer interface are
>> assigned to their appropriate vrf on PE-A
>> 
>> This customers are able to talk across my MPLS domain with their
>> central offices connected on other PE through MPLS network.
>> 
>> Now i want to make, customer in vrf-red to talk with customer in
>> vrf-blue . Both customers are still on the same PE -A .
>> 
>> Can any body tell me is this possible, if yes then How
> 
> use appropriate route-target export/import statements to achieve this.
> example
> 
> ip vrf vrf-red
>  rd 1:1
>  route-target both 1:1
>  route-target import 1:2
> !
> ip vrf vrf-blue
>  rd 1:2
>  route-target both 1:2
>  route-target import 1:1
> 
> This way "red" will import "blue" routes (and vice versa), so both
> VRFs 
> will be able to communicate.
> 
> 	oli