I have a Route 4000 connected thru Frame-Relay to 2524 with a T1 card.
The 2524 router has IOS 11.0(6).
When I run show service-mod from 2524, i get an excessive number of line
code violation. I talked to a PacBell support, and confirmed that T1 line
is OK.
Router#sho service-mod
Module type is T1/fractional
Hardware revision is B, Software revision is 1.2 ,
Image checksum is 0x2162E11, Protocol revision is 1.1
Receiver has no alarms.
Framing is ESF, Line Code is B8ZS, Current clock source is line,
Fraction has 24 timeslots (64 Kbits/sec each), Net bandwidth is 1536
Kbits/sec.
Last module self-test (done 3d23): Passed
Last clearing of alarm counters 3d23
loss of signal : 4, last occurred 6:11:58
loss of frame : 6, last occurred 6:11:58
AIS alarm : 0,
Remote alarm : 0,
Module access errors : 0,
Total Data (last 96 15 minute intervals):
109158 Line Code Violations, 204 Path Code Violations
6 Slip Secs, 10 Fr Loss Secs, 60 Line Err Secs, 4 Degraded Mins
60 Errored Secs, 14 Bursty Err Secs, 10 Severely Err Secs, 0 Unavail
Secs
Data in current interval (854 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
At Cisco's web site, it says:
|--------------+------------------------------------------------------|
| Line Code | Indicates the occurrence of either a bipolar |
| Violations | violation or excessive zeroes error event. |
|--------------+------------------------------------------------------|
,which doesn't help much. The T1 connection goes bad at least once in every
month.
My question is
1. What is the line code violation ?
2. What can cause this problem?
3. How can I fix this one ?
Thank you in advance.
Wonkyu
OSBP,FOMS, MCSE, CCNA
_________________________________
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
