Big picture:
 Max TNT - been in place and working for 1 1/2 to 2 years.
  3 nailed t1's to central POP
  5 switched t1's / 3 48mod modem cards
  1 nailed t1 to remote POP
  1 32idsl card (1 customer)
  1 24sdsl card (serveral customers)
 dircode
  Flash card code directory:
  Card 1, directory size 16
   4ether2-card reg   good   190478 Dec  8 1999      7.2.3e4
   hdlc2-card reg   good   689696 Dec  8 1999      7.2.3e4
   8t1-card reg   good   208665 Dec  8 1999      7.2.3e4
   csmx-card reg   good   875687 Dec  8 1999      7.2.3e4
   32idsl-card reg   good   618803 Dec  8 1999      7.2.3e4
   24sdsl-data-card reg   good   545552 Dec  8 1999      7.2.3e4
   shelf-controller reg   good  1308931 Dec  8 1999      7.2.3e4

Problem
 About every two weeks for the last few months this tnt will stop
routing. What I mean by stop routing is this:
   x -------------- y ---------- z
 remote pop      the tnt       NOC

from z I can ping, traceroute and log into y no problem. but pinging x
results in massive packet loss.
ping from z to y = no packet loss, t1's have no errors, etc...
ping from y to x = no packet loss, t1 has no errors, etc...
ping from z to x = massive packet loss! traceroutes time out at y
* note: it's not only the remote pop, I'm just using it for the example,
but it is all remote links behind this tnt including dial-up customers.

I can not find anything wrong on the tnt. No fatal history, no t1 errors
nothing. Only thing that fixes it is a reboot.

I could really use some suggestions to trouble shoot the problem. This
week I have had to reboot it twice already. Its like this ascend/lucent
equipment has a built in "old age" death code.....

I am reluctant to update code since the revision thats on it has been
working flawlessly for almost 2 years. Prior to which we had to replace
the chassis and shelf controller, because they died....

Help! Anyone.

Thanks :)

*****************************************
Mick Dobra
Systems Administrator
MTCO Communications
1-800-859-6826
*****************************************

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