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 7 years 4 days 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 7 years 4 days 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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