On Sep 30, 2008, at 1:14 PM, julien leroiso wrote:
Hi,
I have 2 bgp routers (named border1 and border2) with a ebgp session
to one
ISP (yyy.yyy.yyy.yyy) and ibgp session (xxx.xxx.xxx.1 and
xxx.xxx.xxx.2).
My border2 is very very slow to converge. After +-3h I didn't get
all my
border1 routes.
I reset the session it's the same. I tryed to debug but I found
nothing
interresting.
Is it normal that ibgp is slower to converge than ebgp ?
There's a lot of factors that can play into this.
I had once seen a document that Cisco generated on ways to help with
BGP convergence.
Some of those methods are:
o Enable tcp path-mtu-discovery, to allow larger bgp messages.
o Increase the input hold queue from the default (70) to 4096. This
reduces the number of TCP retransmissions.
I don't recall them all, but I can vouch for the above two. I
suspect you will see a marked improvement in convergence.
It may be useful if you can identify the platform type (eg: 2600 vs
GSR w/ PRP) and other things like system memory, etc..
If you can provide more details, we can provide some better advice.
- Jared
_______________________________________________
cisco-nsp mailing list [email protected]
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/
