TD060100-0MA
42
Appendix B:
Common
Comm
ands and Software Switches
JC-MER-CXB
Main Program (
router
)
The
JC-MER-CXB
is set up to automatically load and run
all of the
TCP/IP and router software when the computer is booted.
The
unit's
software first loads some Metasys
kernel software. The router
program,
router
, is then run.
If a terminal emulator is attached to
COM2
, a startup screen
displays when the
JC-MER-CXB
is booted. Once the router software
is
running, an operator can type “Q” on the keyboard to terminate the
router
program. To restart the router software, either
type
router
at
the bash prompt or recycle power.
Ethernet Communications Tests (
testnet
)
The
testnet
program looks at the list of Metasys Ethernet
devices
defined in the
configuration screen
and attempts to communicate
with
each of them by issuing
TCP/
IP
ping
commands. The program
produces a summary of the communications with each Metasys
Ethernet
device
as shown below.
If a
device
is not responding
to
testnet
, either the Ethernet or the
device
has f
ailed. Test the Ethernet link, then check connections to the
device
.
Finally,
verify
each item in the configuration
screen
.
Determining the MAC Address of the JC-MER-CXB
(
getmac
)
Sometimes your IT staff may need to know the MAC address of the
JC-MER-CXB
.
This is reported on screen by entering
the
command
getmac
at the bash prompt.
Figure
16 —
Example of
Testnet Results
Screen
Note:
A firewall can prevent an OWS from responding to the
ping
command.