Border Gateway Protocol (BGP) is regards as the most influential network protocols as it is backbone of the internet today. BGP is a Path Vector Routing Protocol, that unlike other routing protocols uses TCP (port 179, as its transport layer) to establish connectivity before exchanging routing information with another BGP speaker (peer).
Authorization, Authentication and Accounting
Interop Cisco and Juniper with VRRP
Let Link up, keep it Local and find new Discovery Protocols