User manual

TD990200-0ME

4 Troubleshooting

Because the Metasys Ethernet Router hardware consists of an

embedded DOS computer, knowledge of DOS will help in

troubleshooting the system.

Booting Up the Router

When first activated, the Metasys Ethernet Router computer runs

through a self test. If an error is detected, the router will stop

operating then repeatedly display an error message advising the

operator to press “Q” to end the router program and exit to DOS.

Note: After pressing “Q” to exit the router program, the null-

modem cable must be moved from COM1 to COM2, so that

DOS commands can be entered. Under DOS control type

ROUTER − to restart the router, or

REBOOT − to reboot the system.

Debugging Ethernet Failures

Software tools are provided with the product for checking Ethernet

network errors. These include the programs XPING.EXE,

IPSTAT.EXE, TESTNET.EXE, and a router statistics mode. The

nature of the XPING and IPSTAT programs should be familiar to

someone with previous experience with TCP/IP software.

Prior to using the router statistics mode tools, you may need to

modify the router configuration file (ROUTER.CFG). Add the

following three switches (upper case letters only) if they are not

already present:

When the router is running, it displays statistical information as

shown in the example of Figure 4 — providing the null-modem

cable is attached to COM1. This display shows ARCNET and

Ethernet message counters.