11-05-2012 09:44 AM - edited 03-16-2019 02:01 PM
I have a 3745 with a lot of slip secs and error secs on the controller. I am not versed in voice yet but I can tell call quality is not great. Some users report that callers cannot hear them.
3745#sh controller T1
T1 0/1 is up.
Applique type is Channelized T1
Cablelength is long gain36 0db
No alarms detected.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Clear
Version info Firmware: 20071009, FPGA: 20, spm_count = 0
Framing is SF, Line Code is AMI, Clock Source is Line.
CRC Threshold is 320. Reported from firmware is 320.
Data in current interval (569 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
569 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
569 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 24 hours)
0 Line Code Violations, 0 Path Code Violations,
86400 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
86400 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
T1 4/0 is up.
Applique type is Channelized T1
Cablelength is long 0db
No alarms detected.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Clear
Version info Firmware: 20071011, FPGA: 13, spm_count = 0
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
Current port master clock:recovered from backplane
Data in current interval (685 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 24 hours)
0 Line Code Violations, 0 Path Code Violations,
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Also configured on the router:
no network-clock-participate slot 2
network-clock-participate slot 4
network-clock-participate wic 2
network-clock-select 1 T1 4/0
Can someone point me in the right direction to troubleshoot?
11-05-2012 09:55 AM
Add wic 0 to network-clock-particiapte, i.e. network-clock-participate wic 0.
Can you also provide "sh network-clocks"?
Chris
11-05-2012 10:06 AM
Here is the result of the sh network-clocks command:
3745#sh network-clocks
Network Clock Configuration
---------------------------
Priority Clock Source Clock State Clock Type
1 T1 4/0 GOOD T1
10 Backplane GOOD PLL
Current Primary Clock Source
---------------------------
Priority Clock Source Clock State Clock Type
1 T1 4/0 GOOD T1
Can you explain what network-clock-participate wic 0 does?
11-05-2012 10:09 AM
Your controller output shows you have a T1 circuit in port 0/1 assuming this is your voice circuit you are having issues with, you want to make sure it participates in clocking as all voice circuits and DSPs need to. Clock slips/errors are caused by not having proper clocking participation as evident in your environment.
HTH, please rate all useful posts!
Chris
11-05-2012 10:40 AM
Will I need to schedule maintenance to put in these commands?
11-05-2012 10:46 AM
Depends on your change management process, but applying this command does not cause any outage.
HTH, please rate all useful posts!
Chris
11-05-2012 10:52 AM
Thanks Chris. I'll try this out and post back the results tomorrow.
11-06-2012 06:07 AM
I tried to insert the command:
network-clock-participate wic 0
The response from the router was:
WIC slot is empty or does not support clock participate
Which commands can I use to display all the WICs?
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide