Re: (ASCEND) (Ascend) MAX 4002 BRI Packet Capture?

["Gary Stern" <cairns@cairns.net.au>]

On Mon, 5 Oct 1998 12:20:43 -0400, Aaron Lineberger wrote:

>Hello fellow ascend-users. I have what I hope will be a quick question:
>
>How do I do a generic packet capture on a BRI interface?
>
>My Stats: Max 4002, BRI interface card, 6.1.0, ftbim.m40
>
>I have a customer with a Bay Networks BayStack AN ISDN Router connecting
>using unnumbered IP. We are having problems where he connects and gets
>authenticated but it seems that the upper level protocols are not
>negotiating correctly between the Bay and the Ascend. We have contacted both
>Bay and Ascend to no avail because both are saying it's the others fault.
>(mind you I'm not interested in blame, just a solution) We have seen that
>any packet size 1461 and under can transfer 100% of the time but packet
>sizes 1462 and above are lost 100% of the time. Sooooo, I'm looking for a
>way to capture everything that is coming and going through my BRI interface
>to him.
>
>All help will be greatly appreciated. :)
>
>Thanks

Geez this sounds similar to the bay/cisco mtu problem.

set the bay MTU to 1506 & the ascend to 1500

or alternatively set the bay to 6 larger than the ascend.

Luv to know if it fixes it :-)

Gary

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