local and remote carrier TROUBLE?

[phoneboy1one]

Where having an ongoing problem with one way talk path some times reseting the loop corrects the problem but last time we had to change ports on our Adtran is's a 28 port Adtran. This connect to a DS3 thats rides an Sonic ring. So it's like where just working in circles.

The carrier cards have 3 T1 connections we swapped the cable from the port that was having the trouble but the trouble did not follow.
Not real sure how the 3 ports on the card work is this Primary Secondary and backup? 1-2-3

Any idea's or help would be great thanks.

 

[GHTROUT]

SONET"

http://en.wikipedia.org/wiki/SONET

Have you try replacing the remote carrier interface card?
(It's where the controller card would be)



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[phoneboy1one]

Yes we have replaced them in the past but this was when we where down hard on a loop.

 

[GHTROUT]

You wrote "replaced them" - do you mean this occurs on more than one remote shelf?

By chance, are the remote shelf T1s converted to IP (to ride on your WAN)?

It would not be IP if there is SONET nodes at both the local and remote end (possibly marked Fujitsu boxes in the equipment rooms). In the case of nodes at each site, it would be consider "straight T1"

Where I'm heading is this. If the T1s between the local and remote are going over your IP WAN, that means the bandwidth of each T1 is "virtual" and could be affected by traffic on your WAN. That would lead to this problem tending to occur around the time network backups are done (weekends, after hours, etc). In that case, I'd push to get the T1s off the WAN and engineered like real T1s.

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[phoneboy1one]

When the trouble starts it's continues till we make changes and it's not always the same fix. I can see what you talking about but this is goin on in the middle of the day. can you tell me how the multiple T1's work on the cards?
Thanks,

 

[GHTROUT]

Once you decrease the bandwidth - even for a second, things will stay down until you reset. That is my firsthand experience.

You can have 1 to 3 T1s. The first is required, the second increases call capacity, and the third can either: increase call capacity more, or be defined as a spare.

At least that's my understanding without further study

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[phoneboy1one]

Thanks for the help.