Configuring System Debugging; Ping And Tracert Configuration Example - HP 4800G Series Configuration Manual

Configuring System Debugging

Output of the debugging information may reduce system efficiency. The debugging commands are
usually used by administrators in diagnosing network failure. After completing the debugging, disable
the corresponding debugging function, or use the undo debugging all command to disable all the
debugging functions.
Output of debugging information is related to the configurations of the information center and the
debugging commands of each protocol and functional module. Displaying the debugging information on
a terminal (including console or VTY) is a common way to output debugging information. You can also
output debugging information to other destinations. For the detailed configurations, refer to Information
Center Commands in the System Volume. By default, you can output debugging information to a
terminal by following these steps:
To do...
Enable the terminal monitoring
of system information
Enable the terminal display of
debugging information
Enable debugging for a
specified module
Display the enabled debugging
functions
You must configure the debugging, terminal debugging and terminal monitor commands first to
display the detailed debugging information on the terminal. For the detailed description on the terminal
debugging and terminal monitor commands, refer to Information Center Commands in the System
Volume.

Ping and Tracert Configuration Example

Network requirements
As shown in Figure
available route exists between Device A and Device C. If no such a route exists, you need to locate the
failed nodes in the network.
Use the command...
terminal monitor
terminal debugging
debugging { all [ timeout
time ] | module-name [ option ] }
display debugging [ interface
interface-type
interface-number ]
[ module-name ]
1-4, Device A failed to telnet Device C. Now it is required to determine whether an
Optional
The terminal monitoring on the
console is enabled by default
and that on the monitoring
terminal is disabled by default.
Available in user view
Required
Disabled by default
Available in user view
Required
Disabled by default
Available in user view
Optional
Available in any view
1-6
Remarks