3Com SuperStack 4 Configuration Manual page 306

318 C 12: F S
HAPTER ILE
Testing Tools for
Network Connection
M
YSTEM ANAGEMENT
After the synchronization of the whole fabric, a great deal of terminal display is
generated. You are recommended not to enable the information synchronization
switch of the whole fabric. If you enabled the information synchronization switch,
after the synchronization information statistics and detection, you must execute
the
undo info-center switch-on
Display Diagnostic Information
You can collect information about the Switch to locate the source of a fault.
However, each module has its corresponding
difficult to collate all the information needed. In this case, you can use
diagnostic-information
You can perform the following operations in all views.
Table 367 Display Diagnostic Information
Operation
display diagnostic information
ping The command can be used to check the network connection and if the host
ping
is reachable.
Perform the following operation in all views.
Table 368 The ping Command
Operation
Support IP ping
The output of the 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, including the number of the packets the Switch sent out
■
and received, the packet loss ratio, the round-trip time in its minimum value,
mean value and maximum value.
Test Periodically if the IP Address is Reachable
You can use the
configure the IP address requiring periodical testing.
Perform the following configuration in System View.
command to disable the switch in time.
command.
Command
display diagnostic-information
Command
ping [ -a ip-address
-i { interface-type interface-num
[ ip ] [ -n ] [ - p
packetsize timeout
] [ -t
end-station polling ip-address
command, which makes it
display
] [-c count ] [ -d ] [ -h
| interface-name
pattern
] [ -q ] [ -r ] [ -s
tos
] [ -tos ] [ -v ]
command in System View to
display
ttl ] [
} ]
host