VWIC-1MFT-E1 Router Back 2 Back connection

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Jan 23rd, 2008
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Hello,

im trying to get a back to back connection over 2 VWIC-1MFT-E1 between 2 routers.

Cabling is correct. I have CD on both ends. One end is set to clock source line the other one to intenal.

It controllers stay down and i see CRC's indicating clocking is not working.

Is there any limitation clocking a line from a VWIC-1MFT-E1. Has anyone tryed this?

one end:

controller E1 0/0/0

clock source internal

channel-group 1 timeslots 1-31


other end:

controller E1 0/0/0

channel-group 1 timeslots 1-31

!

someone an idea???



!




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paolo bevilacqua Wed, 01/23/2008 - 06:34
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Hi,


If these are ISR routers, you also need "network-clock-participate" and "network-clock-select" on both routers.


Else specify what routers is that and send "show controllers e1".


Hope this helps, please rate post if it does!

neumayer Wed, 01/23/2008 - 07:04
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Hello,

im on a 1841. So there is no "network-clock-participate" command.


E1 0/0/0 is down.

Applique type is Channelized E1 - balanced

Receiver has remote alarm.

alarm-trigger is not set

Version info Firmware: 20050620, FPGA: 16, spm_count = 0

Framing is CRC4, Line Code is HDB3, Clock Source is Internal.

CRC Threshold is 320. Reported from firmware is 320.

Data in current interval (824 seconds elapsed):

0 Line Code Violations, 0 Path Code Violations



yourname#sh controllers E1 0/0/0

E1 0/0/0 is down.

Applique type is Channelized E1 - balanced

Receiver has loss of frame.

alarm-trigger is not set

Version info Firmware: 20050620, FPGA: 16, spm_count = 0

Framing is CRC4, Line Code is HDB3, Clock Source is Internal.

CRC Threshold is 320. Reported from firmware is 320.

Data in current interval (162 seconds elapsed):

420030 Line Code Violations, 0 Path Code Violations




rgodden Wed, 01/23/2008 - 06:45
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what is the length of the cable between the routers, what are the cable pin outs, shielded or unshielded cable ?



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