Testing Tools For Network Connection - 3Com Switch 7700 Configuration Manual

Testing Tools for
Network Connection
For more about the usage and format of the debugging commands, refer to the
appropriate chapters.
Since the debugging output will affect the system operating efficiency, do not
enable the debugging command unnecessarily. Use the debugging all command,
especially, with caution. When the debugging is over, disable all debugging.
Displaying Diagnostic Information
You can collect information about the switch to locate the source of faults. Each
module has a corresponding display command, which makes it difficult to collect
all the information needed. In this case, use display diagnostic-information
command.
You can perform the following operations in all views.
Table 34 Displaying Diagnostic Information
Operation
Display diagnostic information
To view the data later, enable saving a screen capture to a file.
The descriptions of testing tools for a network connection are found in the
following:
Ping
■
Tracert Command
■
Ping
The ping command can be used to check the network connection and to verify
whether the host can be reached.
Perform the following operation in user view.
Table 35 The Ping Command
Operation
Support IP ping
The output of the ping command includes:
The response to each ping message. If no response packet is received when
■
time is out,"Request time out" information appears. Otherwise, the data bytes,
the packet sequence number, TTL, and the round-trip time of the response
packet will be displayed.
The final statistics, which include the:
■
number of the packets the switch sent out and received
■
packet loss ratio
■
round-trip time in its minimum value, mean value and maximum value
■
Maintaining and Debugging the System
Command
display diagnostic-information
Command
ping [ -a ip-address ] [-c count ] [ -d ] [ -i
{interface-type interface-num | interface-name
} ][ ip ] [ -n ] [ - p pattern ] [ -q ] [ -r ][ -s
packetsize ] [ -t timeout ] [ -v ] host
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