Is a certain amount of "slip seconds" on a PRI normal and if so what is considered a normal amount?
no it is not, slips are from misconfigured clocking, and should be at 0.
can you explain your situation so we can help you clock it?
They have a site to site data T1 and voice PRI coming into the router. Here is config info etc.
T1 0/1/0 is up.
Applique type is Channelized T1
Cablelength is long gain36 0db
Description: PRI Circuit
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: 20060623, FPGA: 20, spm_count = 0
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
CRC Threshold is 320. Reported from firmware is 320.
Data in current interval (335 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
24 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
24 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 37 15 minute intervals):
2 Line Code Violations, 2 Path Code Violations,
2435 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
2435 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 12 Unavail Secs
controller T1 0/1/0
pri-group timeslots 1-24
description PRI Circuit
ip address 192.168.3.2 255.255.255.252
no ip mroute-cache
service-module t1 timeslots 1-24
service-policy output VOICE-POLICY
no ip address
no logging event link-status
isdn switch-type primary-ni
isdn incoming-voice voice
isdn map address .* plan isdn type unknown
no cdp enable
You have to check the network clocking. Do "show network"
Slip seconds are usually caused because of clocking b/n router and carrier. Slip secs will result in poor voice quality.
Usualy this is due to inproper clocking configuration..
You need to have these lines in your config.
network-clock-participate wic 0
network-clock-select 1 T1 0/0/0 ..
You should configure to suit your controller slot numbers...