H3C S5500-SI Series, Operation Manual

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1-4
To do… Use the command… Remarks
Enable debugging for a
specified module debugging { all [ timeout
time ] | module-name [ option ] }
Required
Disabled by default
Available in user view
Display the enabled debugging
functions
display debugging [ interface
interface-type
interface-number
]
[ module-name ]
Optional
Available in any view
z
The debugging commands are usually used by administrators in diagnosing network failure.
z
Output of the debugging information may reduce system efficiency, especially during execution of
the debugging all command.
z
After completing the debugging, you are recommended to use the undo debugging all command
to disable all the debugging functions.
z
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 .
System Maintaining Example
Network requirements
z
The IP address of the destination device is 10.1.1.4.
z
Display the Layer 3 devices involved while packets are forwarded from the source device to the
destination device.
Configuration procedure
<Sysname> tracert 10.1.1.4
traceroute to 10.1.1.4 (10.1.1.4) 30 hops max, 40 bytes packet
1 128.3.112.1 19 ms 19 ms 0 ms
2 128.32.216.1 39 ms 39 ms 19 ms
3 128.32.136.23 39 ms 40 ms 39 ms
4 128.32.168.22 39 ms 39 ms 39 ms
5 128.32.197.4 40 ms 59 ms 59 ms
6 131.119.2.5 59 ms 59 ms 59 ms
7 129.140.70.13 99 ms 99 ms 80 ms
8 129.140.71.6 139 ms 239 ms 319 ms
9 129.140.81.7 220 ms 199 ms 199 ms
10 10.1.1.4 239 ms 239 ms 239 ms
The above output shows that nine Layer 3 devices are used from the source to the destination device.