Can you clarify what do you mean by BGP policy routing (or) do you mean just a standard policy based routing (PBR). If you are just asking about PBR then here's what it does.
Policy Based Routing (PBR) is independent of ASs. In other words, you can use PBR within an AS or between ASs. I am sure you know, routers by default forward packets based on information in routing table. With PBR you can route traffic based on several different criteria and any traffic that's not matched in your policy is routed normally using the FIB.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.