IE lab 15 - BGP over isdn

From: ccie2be (ccie2be@nyc.rr.com)
Date: Thu Jan 13 2005 - 14:19:08 GMT-3


Hi guys,

Is there a method of establishing bgp peering over isdn such that

the bgp session doesn't make the isdn circuit flap?

Analysis: I'm fairly sure this is because of BGP since I didn't have this

problem prior to configuring the BGP peering between R4 and R5 but I haven't
figured

out how to prove that BGP is the cause. A show dialer only shows the cause
as a packet

to R5.

I'm thinking that since R4 and R5 are ibgp peering via loopbacks, one

possible way to solve this flapping problem is to make R4 and R5

prefer to reach each other's loopback via the eigrp link

between R4 and R3 instead of via ospf over the isdn link. I've been playing

around with the distance command to do this but so far, no success.

Has anyone else have this problem and figure out a way to solve it?

Unfortunately, neither the SG or the forum offers any help on this.

TIA, Tim



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