User manual

TD990200-0ME

The first three lines in the sample file show the specification of

router configuration options called switches. There are seven switch

options that can be specified. All seven options are specified by an

entry in the ROUTER.CFG file consisting of a slash (/) followed by

the option letter. The option letters must be capitalized.

/A or /B The /A switch and the /B switch control the way that

ARCNET broadcast messages are handled by the

Metasys Ethernet Router. If neither of these switches

are defined, the Ethernet Router sends one IP message

to each IP address defined in the ROUTER.CFG file,

for every ARCNET broadcast message received. This

mode will generate a lot of Ethernet traffic and can

cause Metasys nodes to have off-line problems if many

of the IP address defined in this file are not present on

the network. Including one of these two switches

causes the Ethernet Router to send one broadcast

message to all of the nodes that are within the broad-

cast domain of the Ethernet Router. Additional

messages are sent to each of the remaining devices

that do not receive the broadcast message. The two

switches control how the broadcast message is sent on

the Ethernet network. The /A switch sends broadcast

messages to the all ones IP address (255.255.255.255).

The /B switch sends broadcast messages to the

network directed address. The /B switch should be

used on networks that do not pass the all ones broad-

cast messages to all parts of a single IP network. Ask

your network administrator which type of broadcast

message their network supports. (All ones, /A switch ,

or network directed, /B switch ). The /A switch is set

as the default condition. Do not set both switches

active at the same time.

NOTE: The /B switch can only be used when the

Metasys software is at or above release 10.0.

/D This switch is used for diagnostic purposes. Using

this option displays the contents of all the messages

received by the Metasys Ethernet Router.

/M Monitor statistics. This outputs statistics to the

statistics screen, providing /S has been set to display a

template by which the statistics may be meaningfully

viewed.