[c-nsp] IOS and BGP Cease Notification Messages

[Martin T]

Hi,

as I have understood, graceful way to disable BGP peer under IOS is to
execute "neighbor <IP address> remote-as <ASN> shutdown" command under
"router bgp <ASN>" configuration. I made such simple setup for testing
this: http://i.imgur.com/phzvY.png  In case I execute "neighbor
10.10.10.68 remote-as 65002 shutdown" in "Cisco_R2" I can see in
"Cisco_R1" log(logging buffered 32000 informational) following log
entry:

*Sep 17 16:14:18.744: %BGP-5-ADJCHANGE: neighbor 10.10.10.69 Down Peer
closed the session

This nicely indicates that other peer closed the session. Am I correct
that in case I execute "neighbor 10.10.10.68 remote-as 65002
shutdown", the 10.10.10.69 router sends BGP cease(explained here:
http://www.net-gyver.com/?p=1241) message to 10.10.10.68? For some
reason I was not able to detect those messages even with "debug ip bgp
all" running both in "Cisco_R1" and "Cisco_R2". Any ideas why? In
addition, is it somehow possible to manually specify which cease code
to send? For example one would like to send Cease 6/3(peer
de-configured) to a BGP neighbor- is this possible?


regards,
martin