Testing Tools For Network Connection - 3Com 4200G 12-Port Configuration Manual

Testing Tools for
Network Connection
ping
Display the file information after the copy operation.
<4200G>dir flash:/test
Directory of unit1>flash:/
1 drw-
15367 KB total (623 KB free)
(*) -with main attribute
(*b) -with both main and backup attribute
<4200G>
This section contains the tools necessary to test network connections.
The command can be used to check the network connection and if the host is
ping
reachable.
Perform the following operation in all views.
Table 286 The ping Command
Operation Command
Support IP ping
ping [ -a ip-address ] [-c count ] [ -d ] [ -h ttl ] [ -i {
interface-type interface-num | interface-name } ] [ ip ]
[ -n ] [ - p pattern ] [ -q ] [ -r ] [ -s packetsize ] [ -t
timeout ] [ -tos tos ] [ -v ] host
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
end-station polling ip-address
configure the IP address requiring periodical testing.
Perform the following configuration in System View.
Table 287 Test Periodically if the IP address is Reachable
Operation
Configure the IP address
requiring periodical testing
Delete the IP address requiring
periodical testing
The Switch can ping an IP address every one minute to test if it is reachable. Three
PING packets can be sent at most for every IP address in every testing with a time
interval of five seconds. If the Switch cannot successfully ping the IP address after the
three PING packets, it assumes that the IP address is unreachable.

Testing Tools for Network Connection 331

- Apr 16 2000 01:22:48
(b) -with backup attribute
Command
end-station polling ip-address ip-address
undo end-station polling ip-address
ip-address
test
command in System View to