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Internode Test Section 9-3
Method
Input the following at the host computer prompt ($):
$
ping IP_address(host_name)
The destination is specified by its IP address or host name. If the host name is
used, the host name must be defined in file /etc/hosts.
Note The PING command is not supported by some host computers.
Application Examples
These examples show sending the PING command to the node at IP address
130.25.36.8. The “$” on the example screen represents the host computer
prompt. User inputs are underlined. Comments are placed after semicolons.
Normal Execution $
ping 130.25.36.8 ; Executes PING command
PING 130.25.36.8: 56 data bytes
64 bytes from 130.25.36.8: icmp_seq=0. time=0.ms
64 bytes from 130.25.36.8: icmp_seq=0. time=0.ms
...
...
...
64 bytes from 130.25.36.8: icmp_seq=0. time=0.ms
←Enter Ctrl+C Key to cancel.
––––130.25.36.8 PING Statistics––––
9 packets transmitted, 9 packets received, 0% packets loss
round–trip (ms) min/avg/max = 0/1/16
$
Abnormal Execution $
ping 130.25.36.8 ; Executes PING command
PING 130.25.36.8: 56 data bytes
←Enter Ctrl+C Key to cancel.
––––130.25.36.8 PING Statistics––––
9 packets transmitted, 0 packets received, 100% packets loss
$
Refer to operating system documentation for your host computer for details
about using the host computer’s PING command.
9-3 Internode Test
The internode test sends data to and from specified nodes and uses the
responses to check the network. The Ethernet Unit has a built-in function to
run the internode test.
If a normal response is returned for an internode test, it means that the set-
tings for FINS communications services are correct. If a response is not
received, execute the PING command for the same remote node to see if the
Ethernet connection and settings are correct. If the PING command can be
executed successfully, then the FINS settings, such as the routing tables,
node addresses, or address conversion method, are incorrect.
9-3-1 Running the Test
The test parameters are set and the test is started and stopped by writing the
required data to memory in the PC used to start the internode test. These set-
ting are made using the a Programming Device, such as a Programming Con-
sole.