[asterisk-users] T1 PRI shows yellow/red alarm

[Juan David Diaz]

Dean,

what's your zaptel & Zapata config_

regards

Juan.
Linux User #441131


On Mon, Feb 21, 2011 at 1:44 PM, Dean Hoover <kb7qdi at gmail.com> wrote:

> We are running Asterisk version 1.4.23-1, libpri-1.4.9 and
> zaptel-1.4.12.1 and two Digium TE220Ps.  Debugs are set to 10.
>
> We have a T1 PRI connected to the telco.  Over the last 4-5 days, we
> have getting Yellow/Red alarms coming from the T1 PRI.  The other two
> ports in use are connected to internal test switches (Avaya
> Legend/Avaya Definity), and are not showing any errors.
>
> /var/log/asterisk/messages reports:
> [Feb 21 12:21:56] NOTICE[4795] chan_dahdi.c: PRI got event: Alarm (4)
> on Primary D-channel of span 2
> [Feb 21 12:21:56] DEBUG[4795] chan_dahdi.c: Got event Alarm (4) on
> D-channel for span 2
>
> /var/log/syslog reports:
> Feb 21 12:21:56 asterisk kernel: [509981.796536] wct2xxp: Setting
> yellow alarm on span 2
> Feb 21 12:21:56 asterisk kernel: [509981.796562] timing source auto card 0!
> Feb 21 12:21:56 asterisk kernel: [509981.813535] timing source auto card 0!
> Feb 21 12:22:01 asterisk kernel: [509986.813869] wct2xxp: Clearing
> yellow alarm on span 2
>
> Intensive PRI debugging does not show any errors prior to the alarm.
>
> The other part to this is for a while it was pretty intermittent.  One
> day we would get it 2 times, another 8-12 times.  Today, however, it
> seems to be happening around every 11-13 minutes.  Before this
> started, there were no errors for the 6 days prior.
>
> The first response from the telco 4 days ago said that it was an issue
> on their T3, then came back saying we were sending something to reset
> the circuit, but I interpret "PRI got event" as meaning we received
> something from them.
>
> They put a COM tracer in our building, on that circuit, since Friday
> afternoon.  They took it with them to examine the results this
> morning, and are supposed to call me when they know something.
>
> While they are doing that, I want to make sure that I have all the
> information I need in order to diagnose it.  I haven't found a way to
> trace the actual B8ZS/ESF frames, and was wondering if there was a way
> for me to log those events.  It's not that I don't trust them, but by
> the same token I haven't changed anything on my end, the other port on
> the Digium card isn't reporting an issue, and a complete shutdown of
> the Asterisk server didn't change the results.
>
> Any advice would be greatly appreciated.
>
> Dean Hoover
> Milwaukee, Wisconsin
>
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