When we have multiple ISPs terminating on the router with full BGP routing tables, is there a guarantee that an incoming packet takes the same ISP for out going? How the BGP route selection process works when we have multiple ISPs? When we have multiple ISPs, it is still 1 routing and 1 forwarding tables? How the routes aer maintained in routing and forwarding table separately when we have multiple ISPs? Any pointers to BGP route selection process with multihoming would be helpful...
Thanks