Troubleshooting The Isdn Connection - HP ProCurve Secure 7000dl Series Basic Management And Configuration Manual

Configuring Demand Routing for Primary ISDN Modules
Troubleshooting Demand Routing
N o t e
8-72
If you can troubleshoot the problem after business hours (when you will not
inadvertently interrupt the flow of traffic to other interfaces), you may want
to change the ACL to select all traffic from any source to any destination. The
ACL should then trigger the ISDN connection. You can then begin to narrow
the scope of the ACL to limit the traffic selected.

Troubleshooting the ISDN Connection

If the interesting traffic triggers the ISDN connection, the ProCurve Secure
Router will find the appropriate connect-sequence command to process
(based on your configuration) and try to establish a connection. If the router
is unable to establish this connection, you will need to monitor the call setup.
The Secure Router OS provides a number of ISDN debug commands, which
are listed in Table 8-16.
Table 8-16. debug Commands for ISDN
Command
debug isdn cc-ie
debug isdn cc-messages
debug isdn endpoint
debug isdn events
debug isdn group
debug isdn interface
debug isdn l2-formatted
debug isdn l2-messages
debug isdn resource-manager
debug isdn verbose
Debug functions are processor intensive. The debug isdn commands in par-
ticular display a high volume of messages to the CLI.
Some of the debug isdn commands display numerous messages, which are
displayed too quickly to read. You will probably need to stop the messages
and review them to determine the problem. For example, Figure 8-25 shows
a small portion of the debug messages displayed as a call connects.
Description
displays information about the ISDN call control
displays call control messages
displays events related to ISDN endpoints
displays information about ISDN events
display errors and messages related to ISDN groups
displays ISDN interface events
displays Layer 2 formatted messages
displays Layer 2 message
displays resource manager errors and messages
display all errors and messages