Cisco BGP

Border Gateway Protocol kommunicerar på TCP port 179.

States

TCP

Idle State

ConnectRetry timer 120 sekunder

Active State

BGP speaker försöker nå peer med TCP

BGP

OpenSent State

BGP version, AS number, hold time, BGP ID
Börja skicka keepalives

Established State

Skicka uppdateringar
Neighbor up

Konfiguration

router bgp [ASN]
!
neighbor [ip-address] remote-as [ASN]
neighbor [ip-address] update-source [interface]
neighbor [ip-address] ebgp-multihop 2
neighbor [ip-address] next-hop-self
!
network [ip-address] mask [subnet-mask]  
!
bgp default local-preference 100
no synchronization

show ip bgp summary

clear ip bgp *