[asterisk-users] kernel: dahdi: Master changed to TE2/0/2 --- Is a normal message

[equis software]

After exchanging the cable with other equipment was running smoothly in my
computer the problem persisted while the other team the cable that could be
bad worked.
With this test done, now suspect the problem I have it on the Digium card.
I perform the test specified in:
http://kb.digium.com/articles/Troubleshooting/How-do-I-run-a-pattern-loopback-test-on-a-Digium-E1-T1-card?retURL=%2F&popup=false
With this results

call3 tools # ./patlooptest /dev/dahdi/1 -t 300 -v
Using Timeout of 300 Seconds
Going for it...
Timeout achieved Ending Program
Test ran 36499 loops of 2039 bytes/loop with 0 errors
call3 tools # ./patlooptest /dev/dahdi/32 -t 300 -v
Using Timeout of 300 Seconds
Going for it...
Timeout achieved Ending Program
Test ran 36550 loops of 2039 bytes/loop with 0 errors

This test would indicate that the board has no problem ... but where is the
fault?

On Wed, Sep 12, 2012 at 12:56 PM, equis software <equissoftware at gmail.com>wrote:

> Thanks, I'll try changing cables.
>
>
> On Wed, Sep 12, 2012 at 12:21 PM, Shaun Ruffell <sruffell at digium.com>wrote:
>
>> On Wed, Sep 12, 2012 at 12:19:41PM -0300, equis software wrote:
>> > I have a server with an asterisk ss7 link connected to a Siemens
>> > working well for over a year.
>> >
>> > A few days ago I started having problems with signaling.  I found
>> > the following logs in / var / log / messages
>> >
>> > [1018427.030959] dahdi: Master changed to TE2/0/2
>> > [1018427.120740] dahdi: Master changed to TE2/0/1
>> > [1018427.789173] dahdi: Master changed to TE2/0/2
>> > [1018427.884828] dahdi: Master changed to TE2/0/1
>> > [1018431.209621] dahdi: Master changed to TE2/0/2
>> > [1018431.300289] dahdi: Master changed to TE2/0/1
>> > [1018434.763742] dahdi: Master changed to TE2/0/2
>> >
>> > If I stop the asterisk and dahdi driver just let the messages
>> > continue to appear.
>> >
>> > Any ideas??
>>
>> My guess is you have a cabling problem and that span TE2/0/1 is
>> going into and out of alarm.
>>
>> Each time it goes into alarm the core of DAHDI will look for a new
>> span to use as a timing source for asterisk. If TE2/0/1 is the
>> "preferred" timing source, when it comes out of alarm, DAHDI will
>> switch the timing back to it.
>>
>> --
>> Shaun Ruffell
>> Digium, Inc. | Linux Kernel Developer
>> 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
>> Check us out at: www.digium.com & www.asterisk.org
>>
>> --
>> _____________________________________________________________________
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>
>
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