My ASN 65002. I want to filtering inbound traffic at my border router. Say I have to links. Link "A" connects to private IXP (ASN 65003) and link "B" connects to global Internet. I just want to filter so only some network from another AS 65001 (which is also have same connection as I have) can trough my "A" link and another network routes trough link "B".
you cannot force the traffic decisions of another autonomous system.
you can only try to influence their decisions by manipulating the policies.
There are 2 ways to do this 1) MED and 2) AS-path prepending
you can use MED to influence the routing decisions to your AS but this has very limited reach. It can be used only to influence routing decisions to the directly conencted AS as thsi attiribute does not pass along to other AS. Also the other side AS should be using the always-compare-med command.
Another preferred way is to use AS-path prepending. you can use this attribute and advertise your subnets in such a way that some netwoeks seems to be preferable via one route and rest via other.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...