Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Slip Sec Error How to solve?

I?m having a slip sec error. Somebody knows how can i solve this problem? Thanks A lot!

#sh run


controller E1 0/1

framing NO-CRC4

ds0-group 1 timeslots 1-15,17-31 type r2-digital r2-compelled ani

cas-custom 1

country brazil


answer-signal group-b 1




#sh controllers e1

E1 0/1 is up.

Applique type is Channelized E1 - balanced

No alarms detected.

alarm-trigger is not set

Version info Firmware: 20051006, FPGA: 20, 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 (29 seconds elapsed):

0 Line Code Violations, 0 Path Code Violations

3 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

3 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Total Data (last 82 15 minute intervals):

1 Line Code Violations, 1088 Path Code Violations,

8646 Slip Secs, 0 Fr Loss Secs, 1 Line Err Secs, 0 Degraded Mins,

8647 Errored Secs, 0 Bursty Err Secs, 1 Severely Err Secs, 101 Unavail Secs


#sh ver

Copyright (c) 1986-2006 by Cisco Systems, Inc.

Compiled Tue 28-Feb-06 23:31 by alnguyen

ROM: System Bootstrap, Version 12.2(8r) [cmong 8r], RELEASE SOFTWARE (fc1)

TelefoniaIP_Eng_Comercial_SC uptime is 1 day, 17 hours, 30 minutes

System returned to ROM by error - a SegV exception, PC 0x81CC5978 at 16:44:08 GM

T Mon Jul 30 2007

System restarted at 16:48:34 GMT Mon Jul 30 2007

System image file is "flash:c2600-ipvoice-mz.124-7.bin"

Cisco 2610XM (MPC860P) processor (revision 4.1) with 118784K/12288K bytes of mem


Processor board ID FTX0945A2UL

M860 processor: part number 5, mask 2

1 FastEthernet interface

1 Serial interface

1 Channelized E1/PRI port

1 ATM/Voice AIM

32K bytes of NVRAM.

32768K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102



Re: Slip Sec Error How to solve?

I think Slips are usually caused by a clocking issue on the line. The clock source on your line is set for

line. Have you verified with the provider that they are providing clocking on the line? I am also

seeing AAL5 CRC errors on the subinterface of the ATM interface. These may be contributing to the SLIPS or vice-versa. The CRC errors could be caused by any one of the following:

Dropped cells due to traffic policing in the ATM cloud on one or more VCs attached to the ATM

interface.Noise, gain hits, or other transmission problems on the data-link equipment.

For more information please click following URL: