BGP keepalive/holdtime at GigE exchange


    What about on Cisco's tweaking the global command "ip tcp synwait-time
X" so you don't have to wait so long for BGP to notice that the TCP session
no longer exists, there is probably a parallel command on Junos. I haven't
tried it on BGP, but I would think that it would make BGP (and any other
protocol that relies on TCP sessions) much more sensitive.


From: []On Behalf Of
Lane Patterson
Sent: Friday, January 12, 2001 1:08 AM
To: ''
Subject: FW: BGP keepalive/holdtime at GigE exchange

I am looking for operational BCP feedback on common practice for tweaking
down BGP holdtime/keepalive across GigE exchange points, since a peer
could go down on the other side of the GigE switch without a
corresponding adjacency change seen on your BR. The thought is
to make down peers known as fast thru a GigE exchange as they would
be over a POS private peer interface.

The current defaults are pretty gross, and much worse than the
ISIS hello and interface keepalive defaults of 10 seconds.

IOS12.x: neighbor [ip-address | peer-group-name] timers keepalive holdtime
holdtime: default 180 seconds
keepalive: default 60 seconds


JunOS 4.2:
holdtime: default 90 seconds
keepalive: default one third of holdtime