Apparently, OSPF is being redistributed to BGP on Router2 and 3. This is where route-maps can be added to redistribute only the selected routes.
However, the 500 route limit should be what you can send to your MPLS provider. You can use 'network' statement under BGP to control that limit + you can summarize your routes as they are sent to the SP.
If router2 & router 3 need not have to learn those networks that you would want to route via the router1's ATM link then you can filter the OSPF routes on router2 & router 3 from being installed in the routing table using distribute list. This way only the OSPF routes in the routing table on router 2 & 3 would be redistributed into BGP.
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.