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DSP state change is causing active calls to drop

I have this issue for quite some time where active call will drop becuase DSP in slot 0 will go down and then come back up.  We have upgraded the IOS, DSP micro code and replaced the DSPs.  The next logical step is to replace the hardware and all its compnents.  But before I do that I'd like to troubleshoot this issue and get to the root cause.  Any help is appreciated.  Also I have listed the documents that I used during this troubleshooting process.

Logs from show logging | i DSP

010075: Jul 31 10:05:28 EDT: %DSPRM-5-UPDOWN: DSP 1 in slot 0, changed state to up

010076: Jul 31 10:05:28 EDT: Warning! DSP 1 in slot 0 is running non-default firmware 28.3.2

010111: Jul 31 10:14:53 EDT: %DSPRM-5-UPDOWN: DSP 2 in slot 0, changed state to up

010112: Jul 31 10:14:53 EDT: Warning! DSP 2 in slot 0 is running non-default firmware 28.3.2

010161: Jul 31 10:25:34 EDT: %DSPRM-5-UPDOWN: DSP 1 in slot 0, changed state to up

010162: Jul 31 10:25:34 EDT: Warning! DSP 1 in slot 0 is running non-default firmware 28.3.2

010202: Jul 31 10:36:25 EDT: %DSPRM-5-UPDOWN: DSP 1 in slot 0, changed state to up

010203: Jul 31 10:36:25 EDT: Warning! DSP 1 in slot 0 is running non-default firmware 28.3.2

010307: Jul 31 12:19:19 EDT: %DSPRM-5-UPDOWN: DSP 1 in slot 0, changed state to up

010308: Jul 31 12:19:19 EDT: Warning! DSP 1 in slot 0 is running non-default firmware 28.3.2

010348: Jul 31 12:30:11 EDT: %DSPRM-5-UPDOWN: DSP 2 in slot 0, changed state to up

010349: Jul 31 12:30:11 EDT: Warning! DSP 2 in slot 0 is running non-default firmware 28.3.2

010413: Jul 31 12:41:49 EDT: %DSPRM-5-UPDOWN: DSP 1 in slot 0, changed state to up

010414: Jul 31 12:41:49 EDT: Warning! DSP 1 in slot 0 is running non-default firmware 28.3.2

010460: Jul 31 12:51:41 EDT: %DSPRM-5-UPDOWN: DSP 1 in slot 0, changed state to up

010461: Jul 31 12:51:41 EDT: Warning! DSP 1 in slot 0 is running non-default firmware 28.3.2

010571: Jul 31 14:26:47 EDT: %DSPRM-5-UPDOWN: DSP 1 in slot 0, changed state to up

010572: Jul 31 14:26:47 EDT: Warning! DSP 1 in slot 0 is running non-default firmware 28.3.2

010617: Jul 31 14:37:42 EDT: %DSPRM-5-UPDOWN: DSP 2 in slot 0, changed state to up

010618: Jul 31 14:37:42 EDT: Warning! DSP 2 in slot 0 is running non-default firmware 28.3.2

010662: Jul 31 14:48:32 EDT: %DSPRM-5-UPDOWN: DSP 2 in slot 0, changed state to up

010663: Jul 31 14:48:32 EDT: Warning! DSP 2 in slot 0 is running non-default firmware 28.3.2

010075: Jul 31 10:05:28 EDT: %DSPRM-5-UPDOWN: DSP 1 in slot 0, changed state to up
010076: Jul 31 10:05:28 EDT: Warning! DSP 1 in slot 0 is running non-default firmware 28.3.2
010111: Jul 31 10:14:53 EDT: %DSPRM-5-UPDOWN: DSP 2 in slot 0, changed state to up
010112: Jul 31 10:14:53 EDT: Warning! DSP 2 in slot 0 is running non-default firmware 28.3.2
010161: Jul 31 10:25:34 EDT: %DSPRM-5-UPDOWN: DSP 1 in slot 0, changed state to up
010162: Jul 31 10:25:34 EDT: Warning! DSP 1 in slot 0 is running non-default firmware 28.3.2
010202: Jul 31 10:36:25 EDT: %DSPRM-5-UPDOWN: DSP 1 in slot 0, changed state to up
010203: Jul 31 10:36:25 EDT: Warning! DSP 1 in slot 0 is running non-default firmware 28.3.2
010307: Jul 31 12:19:19 EDT: %DSPRM-5-UPDOWN: DSP 1 in slot 0, changed state to up
010308: Jul 31 12:19:19 EDT: Warning! DSP 1 in slot 0 is running non-default firmware 28.3.2
010348: Jul 31 12:30:11 EDT: %DSPRM-5-UPDOWN: DSP 2 in slot 0, changed state to up
010349: Jul 31 12:30:11 EDT: Warning! DSP 2 in slot 0 is running non-default firmware 28.3.2
010413: Jul 31 12:41:49 EDT: %DSPRM-5-UPDOWN: DSP 1 in slot 0, changed state to up
010414: Jul 31 12:41:49 EDT: Warning! DSP 1 in slot 0 is running non-default firmware 28.3.2
010460: Jul 31 12:51:41 EDT: %DSPRM-5-UPDOWN: DSP 1 in slot 0, changed state to up
010461: Jul 31 12:51:41 EDT: Warning! DSP 1 in slot 0 is running non-default firmware 28.3.2
010571: Jul 31 14:26:47 EDT: %DSPRM-5-UPDOWN: DSP 1 in slot 0, changed state to up
010572: Jul 31 14:26:47 EDT: Warning! DSP 1 in slot 0 is running non-default firmware 28.3.2
010617: Jul 31 14:37:42 EDT: %DSPRM-5-UPDOWN: DSP 2 in slot 0, changed state to up
010618: Jul 31 14:37:42 EDT: Warning! DSP 2 in slot 0 is running non-default firmware 28.3.2
010662: Jul 31 14:48:32 EDT: %DSPRM-5-UPDOWN: DSP 2 in slot 0, changed state to up
010663: Jul 31 14:48:32 EDT: Warning! DSP 2 in slot 0 is running non-default firmware 28.3.2

Documents:

http://www.cisco.com/en/US/docs/ios/12_3/vvf_c/voice_troubleshooting/old/dsp_ts.html

http://www.cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a00800e66b1.shtml

Thanks

Fasih Ahmed                 

Everyone's tags (7)
4 REPLIES
Green

DSP state change is causing active calls to drop

Hi,

What is your router type and IOS being used ?

Regards,
Alex.
Please rate useful posts.

Regards, Alex. Please rate useful posts.
Community Member

DSP state change is causing active calls to drop

Hi  Alex,

The router is 3825 with IOS 12.2 (24) T5.

Thanks

Fasih

Green

DSP state change is causing active calls to drop

Fasih,

First of all appologies for the delay.

looking at this link

http://www.cisco.com/en/US/tech/tk652/tk698/technologies_tech_note09186a0080a7af82.shtml

You may be running in to a couple of 3800 series router bugs.

CSCse92174

CSCsu21777

These can be caused by running DSP versions for IOS mainline versions in T Train versions.

Not sure how up to date this link is but I have also seen that TAC do not publish the DSP to IOS version matrix.

Try this

show flash

see if you have a DSP update file in the flsh

If yes then delete it.

Upgrade your router to 12.4.24T7

then Reload.

Hopefully now your DSPs will update to the correct DSP version for T-Train IOS.

If this does not work I can only suggest you open a TAC case.

Regards,
Alex.
Please rate useful posts.

Regards, Alex. Please rate useful posts.

Re: DSP state change is causing active calls to drop

Also make sure there are no .rbf files in flash which will cause the DSPto load this DSPware.

Sent from Cisco Technical Support iPhone App

Please rate useful posts.
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