E1 voice interface having slipping error in Cisco 3845

Answered Question

Hi - I have an voice e1 interface having slipping error in Cisco 3845

voicegate-1#sh controller e1 0/0/1
E1 0/0/1 is up.
  Applique type is Channelized E1 - balanced
  No alarms detected.
  alarm-trigger is not set
  Version info Firmware: 20071011, FPGA: 13, spm_count = 0
  Framing is NO-CRC4, Line Code is HDB3, Clock Source is Line.
  CRC Threshold is 320. Reported from firmware  is 320.
  Data in current interval (751 seconds elapsed):
     0 Line Code Violations, 0 Path Code Violations
     37 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
     37 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Could you point to the right direction to fix the issue?

Regards

I have this problem too.
0 votes
Correct Answer by jaschulz about 6 years 10 months ago

To look at this Tom you would need to look at your group configs.

Do "show voice dsp group all" to view the modules in each slot.

I should also add to see what type of PVDM you have you can use the "show inventory"

Correct Answer by mightyking about 6 years 10 months ago

Configure the following commands in the global mode

network-clock-participate slot0

network-clock-select 1 e1

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123tcr/123tvr/vrht_n1.htm#wp1016893

MK

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Adrian Saavedra Mon, 01/11/2010 - 20:09

Hi,

If slips are present on the E1 line, there is a clocking problem. CPE will need to synchronize to the clocking from the Telco.

Check if you have network-clock-participate and network-clock-select configured properly.

http://www.cisco.com/en/US/docs/ios/12_3/vvf_r/vrg_n1_ps1839_TSD_Products_Command_Reference_Chapter.html#wp1001437

http://www.cisco.com/en/US/docs/ios/12_3/vvf_r/vrg_n1_ps1839_TSD_Products_Command_Reference_Chapter.html#wp1001233

This commands will fix slips.

Hope it helps, if it does please rate.

Best regards,

-- Adrián.

jaschulz Mon, 01/11/2010 - 22:21

Hey Tom,

You can use the "show voice dsp" to display the dsp info.

Thanks.

What is the command to show the DSP module/slot/version etc? I have the below output.

Does it mean the router below has no DSP modules installed?

Regards

voicegate-1#sh voice dsp

DSP  DSP                DSPWARE CURR  BOOT                         PAK     TX/RX
TYPE NUM CH CODEC       VERSION STATE STATE   RST AI VOICEPORT TS ABORT  PACK CO
UNT
==== === == ======== ========== ===== ======= === == ========= == ===== ========
====


----------------------------FLEX VOICE CARD 0 ------------------------------
                           *DSP VOICE CHANNELS*

CURR STATE : (busy)inuse (b-out)busy out (bpend)busyout pending
LEGEND     : (bad)bad    (shut)shutdown  (dpend)download pending

DSP   DSP              DSPWARE CURR  BOOT                         PAK   TX/RX
TYPE  NUM CH CODEC     VERSION STATE STATE   RST AI VOICEPORT TS ABRT PACK COUNT
===== === == ========= ======= ===== ======= === == ========= == ==== ==========
==
                           *DSP SIGNALING CHANNELS*
DSP   DSP              DSPWARE CURR  BOOT                         PAK   TX/RX
TYPE  NUM CH CODEC     VERSION STATE STATE   RST AI VOICEPORT TS ABRT PACK COUNT
===== === == ========= ======= ===== ======= === == ========= == ==== ==========
==
------------------------END OF FLEX VOICE CARD 0 ----------------------------

mightyking Mon, 01/11/2010 - 22:33

Here're some commands to validate DSP's

1) show call resource voice stat

2) test dsp (this is a hidden command)

3) show pool

MK

Correct Answer
jaschulz Mon, 01/11/2010 - 22:47

To look at this Tom you would need to look at your group configs.

Do "show voice dsp group all" to view the modules in each slot.

I should also add to see what type of PVDM you have you can use the "show inventory"

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