Advertising NW in BGP

[saripallek]

Hi ,

could you people suggest on below.

We have two offices in differrent locations and these two offices  has connectivity through MPLS cloud.

For exampls :

Location A  advertising the below NW in MPLS

10.10.0./24

10.20.0./24

10.20.0./24

Location B advertising the below NW in MPLS

192.168.2.0/24

192.168.3.0/24

192.168.4.0/24

192.168.5.0/24

and we have one PtoP link between location a and location b.

Here my question is --> is there any way to advertise the Location B subnets in Location A mpls router if location b mpls down.

we are using BGP with different AS numbers

[shanemoss]

Do you want routers downstream from location A to have subnets from B in their mpls forwarding table even if site B is down? If so, the only way to do this is for these routers to have location Bs subnets in their global routing table.  This can be done by adding a permanent static route on router A to location Bs locations and redistributing this static route.  When the connection to location B goes down, the route will remain in router As routing table and will continue to be advertised allowing this label to remain in downstream routers MPLS forwarding table.

[Vivek Ganapathi]

If i understood your question correctly, you have two offices connected via MPLS & running BGP. You also said, you have Point-to-Point connection as well. Could you please share a topology to show the interconnectivities between location A & B.

• you can have a static or a dynamic routing protocol running on your p2p links
  
• Have them redistributed into BGP.
  

If you could share me the topology, i may be able to answer you appropriately.