Isdn Protocol Analyzer - NETGEAR RT338 Reference Manual

Reference Guide for the Model RT338 ISDN Router

ISDN Protocol Analyzer

You can diagnose an ISDN call connection failure using the ISDN embedded protocol analyzer
(EPA) of the Model RT338 router. The EPA executes from the command line interface within the
internal Manager interface. To use the EPA, you must connect to the router using the serial
MANAGER port. The EPA does not operate with the Telnet protocol.
To invoke the EPA:
Access the internal Manager using a serial terminal connection.
1.
If you are tracing an outgoing call, go to Menu 11 (Remote Node Setup) and note which
2.
remote node number, N, corresponds to the location you are calling.
Invoke the Command Interpreter Mode (Menu 24.8).
3.
Turn on the screen capture/log capability:
4.
rt338> isdn fw ana on
Trace the call.
5.
To trace an outgoing call, force the router to dial the remote node by entering:
rt338> dev dial N
(N is the remote node number shown in Menu 11.)
To trace an incoming call, simply wait for the call.
Wait for all progress messages, and then (if necessary) force the router to drop the ISDN
6.
connection by entering:
rt338> dev chan drop [bri0|bri1]
In this command, bri0 refers to B1 and bri1 refers to B2.
Turn off the analyzer by entering:
7.
rt338> isdn fw ana off
Display the analyzer trace by entering:
8.
rt338> isdn fw ana disp
The trace appears on the screen as in
trace.
E-2
Figure E-1. Use PageUp and PageDown to inspect the entire
Using the Protocol Analyzer and Trace Tools