My enterprise network (AS) connect two sites (cities)and we want to implement two connections with differents ISP, one for each site and advertise one network class C to the ISP for each side. we are goint to received from the ISPs default routes. My questions are the following: It is neccesary that we have to configure IBGP between the two sides?? In the configuration of BGP we can use the same IGP autonomus system?? or to configure another for BGP in each side or to configure One Different and new AS for each side.
Jose Luis Arango