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

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

VWIC-1MFT-E1 Router Back 2 Back connection

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???

!

3 REPLIES
Hall of Fame Super Gold

Re: VWIC-1MFT-E1 Router Back 2 Back connection

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!

New Member

Re: VWIC-1MFT-E1 Router Back 2 Back connection

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

New Member

Re: VWIC-1MFT-E1 Router Back 2 Back connection

what is the length of the cable between the routers, what are the cable pin outs, shielded or unshielded cable ?

395
Views
0
Helpful
3
Replies