Interface shutdowns in loop because of DSP

[admincoco]

Hi,

I use Cisco CUCM 12.5 with an MGCP gateway.

Actualy, my calls randomly fails. Sometimes they work, sometimes not.

I realized after looking in the debug logs, that the interface shuts down, and restarts.

I don't know what that means.

Any idea ?

Thank you in advance.

Sep 21 12:47:00.073: %LINK-3-UPDOWN: Interface 0/0/0:15(15), changed state to up
Sep 21 12:47:00.373: %LINK-3-UPDOWN: Interface 0/0/0:15(17), changed state to up
Sep 21 12:47:04.033: %DSPRM-2-DSPALARM: Received alarm indication from dsp (0/1). Resetting the DSP.
Sep 21 12:47:04.033: %DSPRM-3-DSPALARMINFO: 0042 0000 0080 0000 0000 0000 4368 6563 6B73 756D 2046 6169 6C75 7265 3A63 3030 6264 6134 302C 3030 3030 3030 3064 2C64 3031 3462 6130 302C 6430 3062 6430 3230 0000 93C1 0000 0000 0000
Sep 21 12:47:04.033: %DSPRM-3-DSPALARMINFO: Checksum Failure:c00bda40,0000000d,d014ba00,d00bd020
Sep 21 12:47:04.033: %LINK-3-UPDOWN: Interface 0/0/0:15(1), changed state to Administrative Shutdown
Sep 21 12:47:04.333: %LINK-3-UPDOWN: Interface 0/0/0:15(2), changed state to Administrative Shutdown
Sep 21 12:47:32.645: %DSPRM-5-UPDOWN: DSP 1 in slot 0, changed state to up
Sep 21 12:47:33.221: %LINK-3-UPDOWN: Interface 0/0/0:15(1), changed state to up
Sep 21 12:47:33.521: %LINK-3-UPDOWN: Interface 0/0/0:15(2), changed state to up
Sep 21 12:47:40.929: %DSPRM-2-DSPALARM: Received alarm indication from dsp (0/1). Resetting the DSP.
Sep 21 12:47:40.933: %DSPRM-3-DSPALARMINFO: 0042 0000 0080 0000 0000 0000 4368 6563 6B73 756D 2046 6169 6C75 7265 3A63 3030 6264 6134 302C 3030 3030 3030 3064 2C64 3031 3462 6130 302C 6430 3062 6430 3230 0000 93C1 0000 0000 0000
Sep 21 12:47:40.933: %DSPRM-3-DSPALARMINFO: Checksum Failure:c00bda40,0000000d,d014ba00,d00bd020
Sep 21 12:47:40.933: %LINK-3-UPDOWN: Interface 0/0/0:15(1), changed state to Administrative Shutdown
Sep 21 12:47:41.233: %LINK-3-UPDOWN: Interface 0/0/0:15(2), changed state to Administrative Shutdown
Sep 21 12:48:09.509: %DSPRM-5-UPDOWN: DSP 1 in slot 0, changed state to up
Sep 21 12:48:11.965: %LINK-3-UPDOWN: Interface 0/0/0:15(1), changed state to up
Sep 21 12:48:12.265: %LINK-3-UPDOWN: Interface 0/0/0:15(2), changed state to up
Sep 21 12:48:17.797: %DSPRM-2-DSPALARM: Received alarm indication from dsp (0/1). Resetting the DSP.
Sep 21 12:48:17.797: %DSPRM-3-DSPALARMINFO: 0042 0000 0080 0000 0000 0000 4368 6563 6B73 756D 2046 6169 6C75 7265 3A63 3030 6264 6134 302C 3030 3030 3030 3064 2C64 3031 3462 6130 302C 6430 3062 6430 3230 0000 93C1 0000 0000 0000
Sep 21 12:48:17.797: %DSPRM-3-DSPALARMINFO: Checksum Failure:c00bda40,0000000d,d014ba00,d00bd020
Sep 21 12:48:17.797: %DSMP-3-DSPALARM: Alarm on DSP 0/1:2: status=0x1 message=0x0 text=-
Sep 21 12:48:17.801: %LINK-3-UPDOWN: Interface 0/0/0:15(1), changed state to Administrative Shutdown
Sep 21 12:48:18.101: %LINK-3-UPDOWN: Interface 0/0/0:15(2), changed state to Administrative Shutdown

Sep 21 12:48:22.301: %LINK-3-UPDOWN: Interface 0/0/0:15(17), changed state to Administrative Shutdown

[admincoco · Accepted solution]

Issue was hardware issue.

Fixed after replacement of broken parts.

[Kyle Pugh]

@admincoco I believe I am experiencing the exact same issue with our Cisco 2951.  Did you happen to replace the PVDM module in the router for the solution? 

[admincoco]

Hi Kyle,

The suspicion was on the PVDM card but we decided to change also the the T2/E1 card in same time. Not that expensive as second hand and I don't like to waste my time going to DC in case the PVDM was not enough.