ISDN and the GWCON Commands
While ISDN has its own monitoring process for monitoring purposes, the router also
displays configuration information and complete statistics for devices and circuits
when you use the interface, statistics, and error commands from the GWCON
environment. Youcan also use the GWCON test command to test DCEs and
circuits.
Note: Issuing the test command to the ISDN interface causes the current calls to
be dropped and re-dialed.
Interface — Statistics for ISDN Interfaces and Dial Circuits
Use the interface command at the GWCON prompt (+) to display statistics for
ISDN interfaces and dial circuits.
Todisplay statistics for a dial circuit, enter the interface command followed by the
interface number of the dial circuit. For ISDN interfaces, information is displayed on
a D and B channel basis. (This is the same information that is displayed by the
ISDN statistics command.)
Example:
interface 3
Self-Test Self-Test Maintenance
Nt Nt' Interface CSR Vec Passed Failed Failed
3 3 ISDN/0 0 0 1 0 0
ISDN Base Net MAC/data-link on ISDN Basic Rate Interface interface
Link: Active ISDN Firmware: 1.0 Handler State: Running
D Channel B Channels
Total Transmits 591 0
Total Receives 601 0
Transmit Bytes 3981 0
Receive Bytes 4050 0
Invalid Interrupts 0 0
Transmit: D B Channels Receive: D B Channels
Error 0 0 Error 0 0
Overflow 0 0 Overflow 0 0
Underrun 0 0 Overrun 0 0
Abort 0 0 Abort 0 0
CRC Error 0 0
Todisplay the following statistics for a dial circuit, use the interface command
followed by the interface number of the dial circuit.
Example:
interface 4 Self-Test Self-Test Maintenance
Nt Nt' Interface CSR Vec Passed Failed Failed
4 3 PPP/1 0 0 1 2 0
Point to Point MAC/data-link on ISDN Basic Rate Interface
The following list describes the output for both ISDN and dial circuits.
Nt Serial line interface number or dial circuit interface number.
Nt’ If

Nt

is a dial circuit, this is the interface number of the ISDN interface to
which the dial circuit is mapped.

ISDN and the GWCON Commands

Chapter46. Configuring and Monitoring the ISDN Interface 641
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