Hello people!

This is the diagram of my network:



Like you can see on the diagram I've 2 internet Link with two different Telcos and I've two BGP sessions with each of one of this Telcos on two RB1000 routers.

On the BGP session with Telco1 I announce the follow networks:
10.10.16.0/21
10.10.16.0/23
10.10.18.0/23

On the BGP session with Telco2 I announce the follow networks:
10.10.16.0/21
10.10.20.0/23
10.10.22.0/23

I've a iBGP session between the RB1000-1 and RB1000-2 and the rounting between the Border Routers and the Internal Routers is make with OSPF and every think is working fine now.

The redundancy doesn't work now. If the Telco1 is down the customers that are on the networks 10.10.16.0/23 and 10.10.18.0/23 can't browse on the internet. And if the Telco2 link is down the customers on the networks 10.10.20.0/23 and 10.10.22.0/23 can't browse the Internet.

Now I need to configure the network to have redundancy for my customers. For example if the Telco1 Link is down I want that all the traffic goes throught the Telco2 internet Link or if the Telco2 Link is down I want that all the traffic goes throught the Telco1 link.

I've my AS and my own IP block.

How can i do this? What I need to change to this work?

Thanks!

No one can help me with this???

What is your actual ASN, so we might look at the global routing tables to see the existing configuration from the point of view of "The Internet", please?

Also, can you dump the routing tables on the routers whilst Telco 1 or 2 is down, so we might be able to see how your routers route around the issue?

When Telco 1/2 "goes down", do you loose you link to them? Does the BGP session to them go down?

Regards,