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Frame Relay Setup

Woodland73
Level 1
Level 1

Greetings!

 

I'm attempting to set up a Frame Relay (FR) lab with a few routers, and I'm running into some trouble.  The router I'm using as the FR switch is a 3825, which has two VWIC2-2MFT-T1/E1 cards installed.  The three other routers are 1841s with WIC-1DSU-T1 cards.  

 

I'm getting the following message, when trying to apply clocking to the FR controllers: "This command applies only to DCE interfaces".  I read elsewhere that the "V" in "VWIC2" applies to Voice, and that DCE simply can't be done on them.  I'm very new to all of this, so I hope this isn't a ridiculous question: could I uninstall the VWICs from the FR router, put them on the 1841s, and then put the three WIC-1DSUs on the FR switch to make it work?  Again, I hope that's not utterly silly, and it's worth asking.  

 

If I can't pull this off, may I get some suggestions?  

 

Thanks, in advance! 

4 Replies 4

Rajesh Hirani
Level 1
Level 1

wic stands for wan interface card. the first in line of many and then came hwic which stands for high speed wan interface - the evolution of wic that is now in use on the ISR routers.
The support of voice started and the vic was born "voice interface card" and only supported voice. VIC2 was just an evolution of VIC1
VWIC is voice and wan interface card. VWIC2 was just a evolution of VWIC1.

 Now, your error suggests the cable you are using on the device is DTE. Can you confirm that with "sh controller" ?
 If I am right then the clocking need to be implemented on the other end.

Thanks very much for the breakdown, rhirani!  I made a few T1-crossover cables to connect the 1841s, so that's what's being used.  I ran "sh controller", and the FR switch gave me a ton of information:


FR#sh controller T1
T1 0/0/0 is down.
  Applique type is Channelized T1
  Cablelength is long 0db
  Transmitter is sending remote alarm.
  Receiver has loss of signal.
  alarm-trigger is not set
  Soaking time: 3, Clearance time: 10
  AIS State:Clear  LOS State:Clear  LOF State:Clear
  Version info Firmware: 20071011, 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 (147 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, 147 Unavail Secs
  Total Data (last 67 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, 60300 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: 20071011, 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 (149 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 67 15 minute intervals):
     0 Line Code Violations, 0 Path Code Violations,
     2 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
     2 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 10 Unavail Secs
T1 0/1/0 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: 20071011, 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 (146 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 67 15 minute intervals):
     0 Line Code Violations, 0 Path Code Violations,
     2 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
     2 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 11 Unavail Secs
T1 0/1/1 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: 20071011, 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 (148 seconds elapsed):
     0 Line Code Violations, 0 Path Code Violations
     2 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
     2 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
  Total Data (last 67 15 minute intervals):
     0 Line Code Violations, 0 Path Code Violations,
     607 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
     607 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 11 Unavail Secs
 

I also ran a show-controller for one of the serial interfaces, in case it's at all relevant, here:

 

FR#sh controller ser0/0/1:0

Interface Serial0/0/1:0

Hardware is GT96Kidb at 0x706FF898, driver data structure at 0x70700424

wic_info 0x0

 

There was a *lot* more that printed out for the serial interface, but I didn't paste all of it.  

 

I hope this is enough to tell.....

 

 

I started over and reconfigured all of the interfaces, which solved my issue.  While I'm happy that everything is up and running, I'm a little bummed that I don't know exactly what corrected the issue.  Thanks for the help!

If the configuration is the same as before and this time the interface are up, then this sounds like a bug'ish behaviour and therefore don't let your confidence effect by this. What you were doing was right :-)

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