On which layer of OSI OSPF,EIGRP,BGP and RIP works?
Correct me if i am wrong OSPF and EIGRP uses port no 88 and 89 respectively and BGP uses TCP(179) and RIP uses UDP port.
So OSPF and EIGRP run over TCP/UDP so it might be an Application layer protocol? BGP and RIP are transport layer protocol.
I am really confused about this, pls can anyone explain it with some reference link.