How to remove an E1 R2 controller configuration

[fherrera]

I have this configuration :

controller E1 0/1/1
shutdown
framing no-crc4
ds0-group 0 timeslots 1-15,17-30 type r2-digital r2-compelled ani
cas-custom 0
country telmex
category 2
answer-signal group-b 1
dnis-digits min 1 max 4
dnis-complete
groupa-callerid-end

When I try :

(config)#no controller e1 0/1/0
% Cannot remove controllers this way

What is the correct procedure  ?

[Maren Mahoney]

Remove the ds0-group first. You'll have to shutdown that interface if you have not already. To reset the controller from there, remove all of the other commands one by one.

If it is a physical controller, you can't delete it. If it is a flex controller you can issue "no card type e1 0 1"

Maren

[liviu.gheorghe]

Hello @fherrera ,

the controller E1 0/1/1 is present in the configuration of the router because you have a hardware module with a number of E1 ports on the module present in the router. You cannot erase the the controller E1 from the configuration. What you can do is get it to:

controller E1 0/1/1

by issuing the no version of the commands configured in the example you shared:

controller E1 0/1/1
no shutdown
no framing no-crc4
no ds0-group 0 timeslots 1-15,17-30 type r2-digital r2-compelled ani
no cas-custom 0
no country telmex
no category 2
no answer-signal group-b 1
no dnis-digits min 1 max 4
no dnis-complete
no groupa-callerid-end

The only way you will not see the controller E1 in your configuration is to pull it out of the router.

Hope this helps.

[Roger Kallberg]

Likely the OP does not want to do a no shutdown on the controller as that would bring it up.

[liviu.gheorghe]

You are right.