Serial Input Eroros, CRC and Aborts

[TMJ9779]

TMJ9779 (TechnicalUser) Jul 20, 2004
Help, for a while we have been clocking massive errors on a serial interface on a 2600 Router, we have four t1s going into WICs on the router, the timing config is:

s0/0 line source internal
s1/1 line source line
s2/2 line source internal
s3/3 primary

On the s0/0 we are clocking massive CRC and aborts on the interface. Please Help, we have had errors going to this interface for weeks now, and we got the time info per Cisco, if you can think of any other possible cause please advise.

 

[NetEng631]

Change the clocking to line timing.

 

[TMJ9779]

Well, I forgot to mention that we put the CSU in loopback and clocked errors to it directly, the timing should not have been a factor in a loopback, I am thinking that this is related to where/how this WIC is seated or something... something is causing only 1 particular interface to clock errors, and the origin is the integrated CSU card, we replaced the entire router once and we are still getting the same problems, so I am still perplexed??? Any more suggestions???

 

[ROUTERKID1]

Could you post your config file.

 

[TMJ9779]

this is the config for the controllers:

controller T1 0/0
framing esf
clock source internal
linecode b8zs
channel-group 0 timeslots 1-24 speed 64
!
controller T1 0/1
framing esf
linecode b8zs
channel-group 1 timeslots 1-24 speed 64
!
controller T1 0/2
framing esf
clock source internal
linecode b8zs
channel-group 2 timeslots 1-24 speed 64
!
controller T1 0/3
framing esf
clock source line primary
linecode b8zs
channel-group 3 timeslots 1-24 speed 64
!
!