Ping Command; 1: Common Ethernet Errors - Contemporary Controls Metasys JC-MER-CXB User Manual

Error Number
98
102
74
112
104
101
113
110
111
If a defined router is offline when another router boots up, error 113
displays on the statistics screen. This error just means that a router
at one of the defined IP addresses did not respond as expected. The
router software flags this router as offline and will not send any
messages to it until it comes back online.
The other three Ethernet debugging tools are executed from the bash
prompt once the router program has been stopped. After stopping
the router by hitting the "Q" on the keyboard, switch the null-
modem cable to COM1 to exercise Linux control.
Note:
Once "Q" is hit, the router software stops transmitting
Metasys messages, and its subnet loses communications
with the rest of the Metasys Network. To restart the router
program from the bash prompt, type router.

Ping Command

The ping command verifies that messages can be sent and received
over the Ethernet network by transmitting continuous pings. The
basic command format is:
ping
xxx.xxx.xxx.xxx
where "xxx.xxx.xxx.xxx" is the IP address of a device on the Ethernet
network. Other JC-MER-CXB units and TCP/IP-compatible device
systems send back a response. The pinging will continue until you
press Ctrl-C.
Address already in use
Network dropped connection
Not a data message
Host is down
Connection reset by peer
Ethernet Network Unreachable
(typically a customer LAN Router failure)
Host unreachable (a remote Metasys
Ethernet device such as an NCM, OWS
or JC-MER-CXB is off-line)
Connection timed out
Connection refused
Table 1 — Common Ethernet Errors
TD060100-0MA
32
Meaning