для Cisco Cisco IOS Software Releases 12.2 B

Use the commands described in 

 to troubleshoot the ISDN PRI-SLT feature.

This section provides the following configuration examples to match the configuration tasks in the 
previous sections:

The following example shows how to release the ISDN PRI signaling time slot for RLM configurations 
on a shared T1 link:

controller T1 1

pri-group time slots 1-3 nfas_d primary nfas_int 0 nfas_group 0 rlm-group 0 

channel group 23 timeslot 24

exit

! New Dchannel interface is created for configuration of ISDN parameters:

interface Dchannel1

isdn T309 4000

exit

The following example output from the show isdn status EXEC command includes a report about 
D-channel and RLM group status:

Router# show isdn status

Global ISDN Switchtype = primary-ni

ISDN Dchannel0 interface   rlm-group = 1 

Transport Link Status:

ACTIVE

dsl 0, interface ISDN Switchtype = primary-ni : Primary D channel of nfas group 0

Layer 1 Status:

DEACTIVATED

Layer 2 Status:

TEI = 0, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED

ISDN events occurring on the user (local router) side of the ISDN interface.

Data link layer (ISDN Layer 2) access procedures taking place at the router 
on the D channel.

Information about call setup and teardown of network (ISDN Layer 3) 
connections between the user (local router) side and the network.