3com 3031 Instruccion De Instalación
238
C
HAPTER
21: ISDN C
ONFIGURATION
Displaying and
Debugging ISDN
Debugging ISDN
After finishing the above configuration, execute the
display
commands in any
view to view the running state information of ISDN for verifying the effect of the
configuration.
configuration.
Execute the
debugging
command in user view for the debugging of ISDN.
Typical ISDN
Configuration
Example
Configuration
Example
Connecting Routers via
ISDN PRI Line to
Transmit Data
Networking requirements
As shown in the figure below, Router A is connected with Router B via the WAN.
Table 298 Displaying and debugging ISDN
Operation
Command
Display the active calling information on an
ISDN interface
ISDN interface
display isdn active-channel [
interface type number ]
interface type number ]
Display the value of a ISDN DSS1 signaling
timer
timer
display isdn q931-timer
Display the current status of an ISDN interface
display isdn call-info [
interface type number ]
interface type number ]
Display the history record of an ISDN call
display isdn call-record [
interface type number]
interface type number]
Display the system parameters of ISDN protocol
Layer 2 and Layer 3 running on the interface.
Layer 2 and Layer 3 running on the interface.
display isdn parameters {
protocol | interface type
number }
protocol | interface type
number }
Enable ISDN CC debugging
debugging isdn cc [ interface
type number ]
type number ]
Disable ISDN CC debugging
undo debugging isdn cc
[interface type number]
[interface type number]
Enable ISDN Q.921 debugging
debugging isdn q921 [ interface
type number ]
type number ]
Disable ISDN Q.921 debugging
undo debugging isdn q921 [
interface type number ]
interface type number ]
Enable ISDN Q.931 debugging
debugging isdn q931 [ interface
type number ]
type number ]
Disable ISDN Q.931 debugging
undo debugging isdn q931 [
interface type number ]
interface type number ]