This is a short post to get a few BGP commands down that have become second nature on Cisco equipment but seem harder to tease out on JunOS!
1. Show a summary of the current BGP state:
Cisco: show ip bgp summary Juniper: show bgp summary
2. Check what routes we are receiving from the peer:
Cisco: show ip bgp neighbor x.x.x.x routes Juniper: show route receive-protocol bgp x.x.x.x
3. Check what routes we are sending to the peer:
Cisco: show ip bgp neighbor x.x.x.x advertised-routes Juniper: show route advertising-protocol bgp x.x.x.x
4. Display lots of detail about the peer connection:
Cisco: show ip bgp neighbor x.x.x.x Juniper: show bgp neighbor x.x.x.x
5. Display all the BGP routes
Cisco: show ip bgp Juniper: show route protocol bgp
6. Display BGP routes filtered with a REGEX
Cisco: show ip bgp regexp ^65101$ Juniper: show route protocol bgp aspath-regex ^65101$ Juniper: show route aspath-regex ^65101$
