On Tue, 3 Jul 2007, Kienzle, John wrote:

> We are configuring our routers for a point to point T1 circuit.  We are
> using a similar config as we have had in the past with T1's. The problem
> we seem to be having is the connection goes up and down continuously. In
> fact, it will be up for 20 seconds, down for 10 seconds, and then
> repeats. It seems like some kind of timing issue, and after verifying no
> clocking from the Telco, we configured clocking on one router. That did
> not fix it. I believe our lead tech opened a TAC case for assistance,
> just wanted to get your thoughts too, before we schedule downtime to
> change out and try a different controller card.

What kinds of errors are you seeing, both on the interface and on the 
controller port?  Since you mentioned a T1 controller card, I'm assuming 
you're using a 7200 or some other PA-based router?

jms
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