BGP question

[davidcriollo]

I'm configuring this topology

I'm puzzled by R6 receiving R2 prefixes because they originate from a remote AS, so they should arrive with a TTL set to 1. I previously utilized EBGP multihop, but I've since removed it, yet the prefixes persist.

I'm not triying to remove them. I'm just trying to understand BGP behavior. 

[MHM Cisco World · Accepted solution]

The prefix of bgp done have TTL

But TTL is mandatory for bgp session to establish.

How can I know ttl in active bgp session?

This info dont find it even in ccie book' you can see ttl of active bgp by

Show tcp breif 

There is number appear "pcb" number 

Use it in 

Show tcp detail pcb "number you get from first step"

MHM