Re: (PM) OS-HS Frame Overflow

jp@sugar.midcoast.com
Sat, 22 Nov 1997 00:32:55 -0500 (EST)

>
> Hello,
>
> This OR-HS customer with 3.7.2 with 128 frame connect
> via our cisco 2501 version 10.2 (needs upgrading i know)
>
> Symptom -- Line stops sending LMI, cascade 9000 takes circuit
> out of use after missing 3 LMI . Rebooting Adtran and OR-HS brings
> circuit back up. The condition only occurs on largefile download
> requests (3MB+)
>
> Upload are ok. Limited use can be maintained for days.
>

Is it an Adtran TSU-LT (Lite)? A number of these had problems which would
cause them to lock up under heavy use. If this is the case, get a regular
Adtran TSU and straigten things out with Adtran later.

You might also have a clock source problem. Does the telco supply the
clock? Does your adtran receive clock from the [telco] network?

It might be a bad v.35 cable, as a third thing to check.

It might really be a phone company problem too. I've seen plenty of them.
Don't cry wolf till you've checked your options. Too bad you have to prove
yourself by replacing *everything* and talking big to get the phone
company to investigate a problem.

-- 
/*
Jason Philbrook         |         Midcoast Internet Solutions
jp@midcoast.com         |     Internet Access, LAN, WAN, and Linux
www.midcoast.com/jp/    |   Service and Consulting for Midcoast Maine
*/

- To unsubscribe, email 'majordomo@livingston.com' with 'unsubscribe portmaster-users' in the body of the message.