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Cisco 3845/3825 clocking problem

Posted on 2013-01-31
3
1,136 Views
Last Modified: 2013-02-20
Hello Experts,
I have a Cisco 3845 router at the local site & a Cisco 3825 router at the remote site with 2-Port RJ-48 Multiflex Trunk cards.  There are two point-to-point T1 circuits in a Multilink bundle.  One of the T1 circuits is showing slip & line secs (More at the remote site than the local site).  I am also seeing input/CRC/frame/overrun errors on the serial interface.  My telco does not provide timing, so I have the remote site set to "clock source line" & the local side set to " clock source line independent".  I had our provider perform a loopback test last night & they can find no issues with the T1.  Does anyone see any problems with my config. or have any ideas on troubleshooting?  Thanks.

LOCAL SITE:
controller T1 0/0/0
 clock source line independent
 cablelength long 0db
 channel-group 1 timeslots 1-24
!
controller T1 0/0/1
 clock source line independent
 cablelength long 0db
 channel-group 1 timeslots 1-24
!
interface Multilink1
 ip address 192.168.46.1 255.255.255.0
 ip access-group Multilink1_in in
 load-interval 30
 no keepalive
 ppp chap hostname PASSWORD
 ppp multilink
 ppp multilink group 1
 ppp multilink fragment disable


interface Serial0/0/0:1
 description T1 #1
 no ip address
 encapsulation ppp
 load-interval 30
 ppp chap hostname PASSWORD
 ppp multilink
 ppp multilink group 1
 max-reserved-bandwidth 90
!
interface Serial0/0/1:1
 description T1 #2
 no ip address
 encapsulation ppp
 load-interval 30
 ppp chap hostname PASSWORD
 ppp multilink
 ppp multilink group 1
 max-reserved-bandwidth 90

LOCAL" SH CONTROLLER T1
T1 0/0/0 is up.
  Applique type is Channelized T1
  Cablelength is long 0db
  Description: T1 #1
  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 Internal Independent.
  CRC Threshold is 320. Reported from firmware  is 320.
  Data in current interval (478 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
  Total Data (last 9 15 minute intervals):
     0 Line Code Violations, 3 Path Code Violations,
     1 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 1 Degraded Mins,
     1 Errored Secs, 1 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
T1 0/0/1 is up.
  Applique type is Channelized T1
  Cablelength is long 0db
  Description: T1 #2
  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 Independent.
  CRC Threshold is 320. Reported from firmware  is 320.
  Data in current interval (478 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
  Total Data (last 9 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



LOCAL#SH NETWORK-CLOCK
  Network Clock Configuration
  ---------------------------
  Priority      Clock Source    Clock State     Clock Type

    11          Backplane       GOOD            PLL

  Current Primary Clock Source
  ---------------------------
  Priority      Clock Source    Clock State     Clock Type

    11          Backplane       GOOD            PLL

LOCAL#SH INT
Serial0/0/0:1 is up, line protocol is up
  Hardware is GT96K Serial
  Description:
  MTU 1500 bytes, BW 1536 Kbit/sec, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation PPP, LCP Open, multilink Open
  Link is a member of Multilink bundle Multilink1, loopback not set
  Keepalive not set
  Last input 00:00:00, output 00:00:03, output hang never
  Last clearing of "show interface" counters 02:34:02
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair  [suspended, using FIFO]
  FIFO output queue 0/40, 0 drops
  30 second input rate 4000 bits/sec, 2 packets/sec
  30 second output rate 4000 bits/sec, 2 packets/sec
     237415 packets input, 69140200 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     25 input errors, 1 CRC, 0 frame, 24 overrun, 0 ignored, 0 abort
     243854 packets output, 110113431 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions
  Timeslot(s) Used:1-24, SCC: 0, Transmitter delay is 0 flags
Serial0/0/1:1 is up, line protocol is up
  Hardware is GT96K Serial
  Description:
  MTU 1500 bytes, BW 1536 Kbit/sec, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation PPP, LCP Open, multilink Open
  Link is a member of Multilink bundle Multilink1, loopback not set
  Keepalive not set
  Last input 00:00:00, output 00:00:06, output hang never
  Last clearing of "show interface" counters 02:34:02
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair  [suspended, using FIFO]
  FIFO output queue 0/40, 0 drops
  30 second input rate 5000 bits/sec, 2 packets/sec
  30 second output rate 5000 bits/sec, 2 packets/sec
     237228 packets input, 68961289 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 1 giants, 0 throttles
     195 input errors, 114 CRC, 7 frame, 67 overrun, 0 ignored, 6 abort
     243844 packets output, 110028352 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions
  Timeslot(s) Used:1-24, SCC: 1, Transmitter delay is 0 flags

Multilink1 is up, line protocol is up
  Hardware is multilink group interface
  Internet address is 192.168.46.1/24
  MTU 1500 bytes, BW 3072 Kbit/sec, DLY 20000 usec,
     reliability 255/255, txload 14/255, rxload 6/255
  Encapsulation PPP, LCP Open, multilink Open
  Open: IPCP, CDPCP, loopback not set
  Keepalive not set
  DTR is pulsed for 2 seconds on reset
  Last input 00:00:01, output never, output hang never
  Last clearing of "show interface" counters 02:18:53
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 413
  Queueing strategy: Class-based queueing
  Output queue: 0/1000/0 (size/max total/drops)
  30 second input rate 74000 bits/sec, 21 packets/sec
  30 second output rate 170000 bits/sec, 23 packets/sec
     453641 packets input, 129963648 bytes, 0 no buffer
     Received 0 broadcasts (1797 IP multicasts)
     0 runts, 0 giants, 0 throttles
     196 input errors, 0 CRC, 196 frame, 0 overrun, 0 ignored, 0 abort
     464447 packets output, 205276234 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions





LOCAL#SH INV
NAME: "3845 chassis", DESCR: "3845 chassis"
PID: CISCO3845         , VID: V01 , SN: FCZ1222721A

NAME: "c3845 Motherboard with Gigabit Ethernet on Slot 0", DESCR: "c3845 Motherboard with Gigabit Ethernet"
PID: CISCO3845-MB      , VID: V06 , SN: FOC12160T7N

NAME: "VWIC2-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1 on Slot 0 SubSlot 0", DESCR: "VWIC2-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1"
PID: VWIC2-2MFT-T1/E1  , VID: V01 , SN: FOC11380Z9P

NAME: "VWIC2-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1 on Slot 0 SubSlot 1", DESCR: "VWIC2-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1"
PID: VWIC2-2MFT-T1/E1  , VID: V01 , SN: FOC110346AZ

NAME: "VWIC2-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1 on Slot 0 SubSlot 2", DESCR: "VWIC2-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1"
PID: VWIC2-2MFT-T1/E1  , VID: V01 , SN: FOC11362WX9

NAME: "VWIC2-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1 on Slot 0 SubSlot 3", DESCR: "VWIC2-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1"
PID: VWIC2-2MFT-T1/E1  , VID: V01 , SN: FOC11362XSK




REMOTE SITE:

controller T1 0/0/0
 clock source line primary
 cablelength long 0db
 channel-group 1 timeslots 1-24
!
controller T1 0/0/1
 cablelength long 0db
 channel-group 1 timeslots 1-24
!
!
!
interface Multilink1
 ip address 192.168.46.2 255.255.255.0
 ip access-group Multilink1_in in
 load-interval 30
 no keepalive
 ppp chap hostname PASSWORD
 ppp multilink
 ppp multilink group 1
 ppp multilink fragment disable
 service-policy output voip
!
interface Serial0/0/0:1
 description T1 #1
 no ip address
 encapsulation ppp
 ppp chap hostname PASSWORD
 ppp multilink
 ppp multilink group 1
!
interface Serial0/0/1:1
 description T1 #2
 no ip address
 encapsulation ppp
 ppp chap hostname PASSWORD
 ppp multilink
 ppp multilink group 1


REMOTE#SH CONTROLLER T1
T1 0/0/0 is up.
  Applique type is Channelized T1
  Cablelength is long 0db
  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 Primary.
  CRC Threshold is 320. Reported from firmware  is 320.
  Data in current interval (816 seconds elapsed):
     0 Line Code Violations, 3 Path Code Violations
     0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 1 Degraded Mins
     1 Errored Secs, 1 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
  Total Data (last 8 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
T1 0/0/1 is up.
  Applique type is Channelized T1
  Cablelength is long 0db
  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 (815 seconds elapsed):
     0 Line Code Violations, 0 Path Code Violations
     420 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
     420 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
  Total Data (last 8 15 minute intervals):
     0 Line Code Violations, 0 Path Code Violations,
     7200 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
     7200 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

REMOTE#SH NETWORK-CLOCK
  Network Clock Configuration
  ---------------------------
  Priority      Clock Source    Clock State     Clock Type

     1          T1 0/0/0        GOOD            T1
     2          T1 0/0/1        GOOD            T1
    11          Backplane       GOOD            PLL

  Current Primary Clock Source
  ---------------------------
  Priority      Clock Source    Clock State     Clock Type

     1          T1 0/0/0        GOOD            T1


REMOTE#SH INT
Serial0/0/0:1 is up, line protocol is up
  Hardware is GT96K Serial
  MTU 1500 bytes, BW 1536 Kbit/sec, DLY 20000 usec,
     reliability 255/255, txload 11/255, rxload 22/255
  Encapsulation PPP, LCP Open, multilink Open
  Link is a member of Multilink bundle Multilink1, loopback not set
  Keepalive not set
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters 02:18:11
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair  [suspended, using FIFO]
  FIFO output queue 0/40, 0 drops
  5 minute input rate 136000 bits/sec, 29 packets/sec
  5 minute output rate 68000 bits/sec, 31 packets/sec
     230775 packets input, 101313046 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     2 input errors, 1 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     225695 packets output, 66374365 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions
  Timeslot(s) Used:1-24, SCC: 0, Transmitter delay is 0 flags
Serial0/0/1:1 is up, line protocol is up
  Hardware is GT96K Serial
  MTU 1500 bytes, BW 1536 Kbit/sec, DLY 20000 usec,
     reliability 255/255, txload 10/255, rxload 22/255
  Encapsulation PPP, LCP Open, multilink Open
  Link is a member of Multilink bundle Multilink1, loopback not set
  Keepalive not set
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters 02:18:11
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair  [suspended, using FIFO]
  FIFO output queue 0/40, 0 drops
  5 minute input rate 134000 bits/sec, 30 packets/sec
  5 minute output rate 66000 bits/sec, 32 packets/sec
     230530 packets input, 100852202 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     518 input errors, 297 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     225718 packets output, 66393113 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions
  Timeslot(s) Used:1-24, SCC: 1, Transmitter delay is 0 flags
Multilink1 is up, line protocol is up
  Hardware is multilink group interface
  Internet address is 192.168.46.2/24
  MTU 1500 bytes, BW 3072 Kbit/sec, DLY 20000 usec,
     reliability 255/255, txload 9/255, rxload 4/255
  Encapsulation PPP, LCP Open, multilink Open
  Open: IPCP, CDPCP, loopback not set
  Keepalive not set
  DTR is pulsed for 2 seconds on reset
  Last input 00:00:00, output never, output hang never
  Last clearing of "show interface" counters 02:18:11
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 2
  Queueing strategy: Class-based queueing
  Output queue: 0/1000/0 (size/max total/drops)
  30 second input rate 59000 bits/sec, 50 packets/sec
  30 second output rate 111000 bits/sec, 82 packets/sec
     461305 packets input, 198474808 bytes, 0 no buffer
     Received 0 broadcasts (1790 IP multicasts)
     0 runts, 0 giants, 0 throttles
     267 input errors, 0 CRC, 267 frame, 0 overrun, 0 ignored, 0 abort
     451413 packets output, 132767478 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions




REMOTE#SH INV
NAME: "3825 chassis", DESCR: "3825 chassis"
PID: CISCO3825         , VID: V05 , SN: FTX1324A17T

NAME: "VWIC2-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1 on Slot 0 SubSlot 0", DESCR: "VWIC2-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1"
PID: VWIC2-2MFT-T1/E1  , VID: V01 , SN: FOC11362Y47

NAME: "Virtual Private Network (VPN) Module on Slot 0", DESCR: "Encryption AIM Element"
PID: AIM-VPN/SSL-3     , VID: V01, SN: FOC13215BV6

NAME: "ATM AIM 1", DESCR: "ATM AIM"
PID: AIM-ATM           , VID: V01 , SN: FOC13231SF8
0
Comment
Question by:SpokaneISD
  • 2
3 Comments
 
LVL 20

Expert Comment

by:rauenpc
ID: 38840792
I think instead of "clock source line independent" you should use "clock source internal independent" on both T1's on the local side, and use "clock source line independent" on both T1's at the remote end.

https://supportforums.cisco.com/thread/185299
0
 

Accepted Solution

by:
SpokaneISD earned 0 total points
ID: 38895360
I tried that & the result was the same.  Working with Telco & Cisco on a resolution.  Thanks anyway.
0
 

Author Closing Comment

by:SpokaneISD
ID: 38908745
The comment submitted did not resolve the problem.
0

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