DSP not working?

[Mike Buyarski]

Is there a Specific command I can run on a router to determine if the DSP is not working properly and maybe bad?

Router model: 2901

IOS ver: 15.4(3)M8

[rohanqwest]

Hi,

There are few test CLIs which you can use.

Check this link for an earlier discussion regarding the same,

https://supportforums.cisco.com/t5/ip-telephony/how-to-determine-faulty-dsp-on-2821-c5510-dsp/td-p/1657391

HTH !

Regards,

Rohan

[Mike Buyarski]

I ran through what it said but i'm not sure. Here is the output: FYI we have a single PVDM3-16 in PVDM slot 0

"router"#test voice driver
Enter Voice NM  slot number : 0

C29xx/C39xx Debugging Section;

1 - FPGA Registers Read/Write
2 - 5510 DSP test
3 - DSPRM test
5 - IOCTRL TDM Registers Read/Write
6 - IOCTRL HDLC Registers Read/Write
7 - IOCTRL TDM Memory Read/Write
8 - get conn store address
9 - TDM PLL Read/Wrire
10 - SP2600 DSP test
11 - Quit

Select option : 2

5510 DSP Testing Section:

1 - Reset ALL DSPs
2 - Reset 1 DSP
3 - Download DSPware
4 - CHPIR Enable/Disable
5 - Display c5510 ring
6 - Show HPI RAM
8 - Show Controller
9 - c5510 Keepalive Enable/Disable
10 - Download bootloader using indirect slave access
11 - Write HPI RAM
13 - DSP application download
14 - faked dsp crash
15 - Wait in Firmware Restart Indication
16 - Display DSP Keepalive Status
17 - QUIT

Select option : 16

DSP Keepalive Status Display:
=============================
DSP 1 is Alive, State: 4, Keepalive Sent: 1182626, Skip 0
DSP 2 Not Exist
DSP 3 Not Exist
DSP 4 Not Exist
DSP 5 Not Exist
DSP 6 Not Exist
DSP 7 Not Exist
DSP 8 Not Exist
DSP 9 Not Exist
DSP 10 Not Exist
DSP 11 Not Exist
DSP 12 Not Exist

[R0g22]

This command is to reset the DSP from the IOS itself without the need for a power cycle. You can use the following commands -

show voice dsp group all
show voice dsp error

The DSP cores should be in a UP state. Anything other than that is an issue.

[Jinto Alakkal]

Hi give "sh voice dsp group all" below is a Good thread to understand its outputs. The "state" will show the status of the DSP

https://supportforums.cisco.com/t5/collaboration-voice-and-video/understanding-the-output-of-quot-show-voice-dsp-group-all-quot/ta-p/3141792