01-06-2011 01:43 PM - edited 03-04-2019 10:58 AM
We have 4 data T1s providing our office with 6Mbs of internet bandwidth.
I have been trying to track down the reason(s) for the steadily increasing frame and abort errors on the Multilink interface of our new router.
We have a new 2961 with 2 2 port T1 interface cards (VWIC2-2MFT-T1/E1).
At first it looked like the T1s were completely clean, but after diving down a bit the last of the 4 T1s does appear to have a decent amount of slip and error seconds.
Is that something that would cause the Multilink interface to show input, frame, and abort errors?
Any config or debug commands I should start with to narrow down what might be causing this problem?
Thanks!
Config snippets:
card type t1 0 0
card type t1 0 1
!
controller T1 0/0/0
clock source internal
cablelength short 440
channel-group 0 timeslots 1-24
description HCFD-XXXXXX
!
controller T1 0/0/1
clock source internal
cablelength short 440
channel-group 0 timeslots 1-24
description HCFD-XXXXXX
!
controller T1 0/1/0
clock source internal
cablelength short 440
channel-group 0 timeslots 1-24
description HCFD-XXXXXX
!
controller T1 0/1/1
clock source internal
cablelength short 440
channel-group 0 timeslots 1-24
description HCFD-XXXXXX
!
interface Multilink1
ip address X.X.X.X 255.255.255.252
ip nat outside
ip virtual-reassembly
ppp multilink
ppp multilink group 1
ppp multilink fragment disable
!
interface Serial0/0/0:0
description T1 : HCFD-XXXXXX
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 1
!
interface Serial0/0/1:0
description T1 : HCFD-XXXXXX
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 1
!
interface Serial0/1/0:0
description T1 : HCFD-XXXXXX
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 1
!
interface Serial0/1/1:0
description T1 : HCFD-XXXXXX
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 1
Output of various show commands:
hq1#sh int serial 0/0/0:0 | include input
Last input 00:00:00, output 00:00:00, output hang never
5 minute input rate 225000 bits/sec, 239 packets/sec
1171775 packets input, 146136108 bytes, 0 no buffer
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
hq1#sh int serial 0/0/0:0 | include input
Last input 00:00:00, output 00:00:00, output hang never
5 minute input rate 225000 bits/sec, 239 packets/sec
1171776 packets input, 146136168 bytes, 0 no buffer
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
hq1#sh int serial 0/0/0:0 | include input
Last input 00:00:00, output 00:00:00, output hang never
5 minute input rate 225000 bits/sec, 239 packets/sec
1171777 packets input, 146136228 bytes, 0 no buffer
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
hq1#sh int serial 0/0/0:0 | include input
Last input 00:00:00, output 00:00:00, output hang never
5 minute input rate 225000 bits/sec, 239 packets/sec
1171778 packets input, 146136288 bytes, 0 no buffer
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
hq1#sh int multilink 1 | include input
Last input 00:00:00, output never, output hang never
5 minute input rate 862000 bits/sec, 258 packets/sec
1241153 packets input, 546518598 bytes, 0 no buffer
2220 input errors, 0 CRC, 1678 frame, 0 overrun, 0 ignored, 542 abort
hq1#sh controller t1 0/0/0
T1 0/0/0 is up.
Applique type is Channelized T1
Cablelength is short 440
Description: Bandwidth.com : HCFD-577813
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: 20100222, FPGA: 13, 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 (257 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
Data in Interval 1:
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
Data in Interval 2:
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
Data in Interval 3:
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
Data in Interval 4:
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
Data in Interval 5:
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 5 15 minute intervals):
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
hq1#sh controller t1 0/0/1
T1 0/0/1 is up.
Applique type is Channelized T1
Cablelength is short 440
Description: Bandwidth.com : HCFD-577814
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: 20100222, FPGA: 13, 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 (276 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
1 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
1 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in Interval 1:
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
Data in Interval 2:
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
Data in Interval 3:
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
Data in Interval 4:
0 Line Code Violations, 0 Path Code Violations
1 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
1 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in Interval 5:
0 Line Code Violations, 0 Path Code Violations
1 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
1 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 5 15 minute intervals):
0 Line Code Violations, 0 Path Code Violations,
5 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
5 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
hq1#sh controller t1 0/1/0
T1 0/1/0 is up.
Applique type is Channelized T1
Cablelength is short 440
Description: Bandwidth.com : HCFD-577815
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: 20100222, FPGA: 13, 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 (285 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
Data in Interval 1:
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
Data in Interval 2:
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
Data in Interval 3:
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
Data in Interval 4:
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
Data in Interval 5:
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 5 15 minute intervals):
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
hq1#sh controller t1 0/1/1
T1 0/1/1 is up.
Applique type is Channelized T1
Cablelength is short 440
Description: Bandwidth.com : HCFD-577816
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: 20100222, FPGA: 13, 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 (286 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
116 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
116 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in Interval 1:
0 Line Code Violations, 0 Path Code Violations
366 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
366 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in Interval 2:
0 Line Code Violations, 852 Path Code Violations
368 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 4 Degraded Mins
399 Errored Secs, 46 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in Interval 3:
0 Line Code Violations, 5 Path Code Violations
368 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 2 Degraded Mins
368 Errored Secs, 1 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in Interval 4:
0 Line Code Violations, 0 Path Code Violations
370 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
370 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in Interval 5:
0 Line Code Violations, 0 Path Code Violations
370 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
370 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 5 15 minute intervals):
0 Line Code Violations, 857 Path Code Violations,
1842 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 6 Degraded Mins,
1873 Errored Secs, 47 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
01-06-2011 02:58 PM
Your symptoms could be a failure on the telco side, or timing.
Is there a reason your clock source is set to internal /
01-06-2011 03:05 PM
Nuts... I posted the wrong snippet, sorry about that.
That is what I get for lazily copying out of gVim instead of running show run again.
The other SHOW commands were current though, after clearing counters and letting it run a bit.
Here is a FRESH config snippet:
card type t1 0 0
card type t1 0 1
!
!
controller T1 0/0/0
cablelength short 440
channel-group 0 timeslots 1-24
description Bandwidth.com : XXX-XXXXXX
!
controller T1 0/0/1
cablelength short 440
channel-group 0 timeslots 1-24
description Bandwidth.com : XXX-XXXXXX
!
controller T1 0/1/0
cablelength short 440
channel-group 0 timeslots 1-24
description Bandwidth.com : XXX-XXXXXX
!
controller T1 0/1/1
cablelength short 440
channel-group 0 timeslots 1-24
description Bandwidth.com : XXX-XXXXXX
!
!
interface Multilink1
ip address X.X.X.X 255.255.255.252
ip nat outside
ip virtual-reassembly
ppp multilink
ppp multilink group 1
ppp multilink fragment disable
!
interface Serial0/0/0:0
description Bandwidth.com T1 : XXX-XXXXXX
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 1
!
interface Serial0/0/1:0
description Bandwidth.com T1 : XXX-XXXXXX
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 1
!
interface Serial0/1/0:0
description Bandwidth.com T1 : XXX-XXXXXX
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 1
!
interface Serial0/1/1:0
description Bandwidth.com T1 : XXX-XXXXXX
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 1
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