User manual

TD990200-0ME

Changing the Ethernet Network

Occasionally, the customer’s communications/computer staff may

decide to rearrange their Ethernet network. Normally this will not

impact the operation of the Metasys Ethernet Router, except that it

may result in a temporary loss of communications with one or more

of the routers. Should this happen, all NCMs and PCs on those

subnets will go offline. If the customer decides to change the

configuration of their Ethernet network, you may have to change the

IP address information stored in each router. To do this, you will

have to change the configuration for each router, and you may also

have to change the ROUTER.CFG file stored in each router.

The configuration is stored in the SOCKET.CFG file. The file can

be modified from the configuration screen. Enter the IP address for

the Metasys Ethernet Router, the subnet mask and the IP address for

the customer’s existing LAN router. Once the data is entered and

saved, the SOCKET.CFG file will be updated.

If the IP address for the Metasys Ethernet Router was modified, you

must update the ROUTER.CFG file through the configuration

screen. Change the IP address as needed. Then use the

DOWNLOAD program to update the ROUTER.CFG file on all the

other routers.

Changing the Layout of the Metasys Network

In some situations you may want to reorganize the Metasys Network.

This may involve joining two existing ARCNET subnets into a

single subnet, splitting an existing subnet into two subnets, or

adding new subnets. If you are performing a major reconfiguration

of the network, follow these steps:

1. Determine the new network layout for Metasys. The new

network layout should show a number of ARCNET subnets that

are connected using Metasys Ethernet Routers and the

customer’s Ethernet network. Assign a unique subnet number

to each ARCNET segment.

2. Using the new network layout, determine where the Metasys

Ethernet Routers will be located. For each router, determine if it

is an existing router or a new router. If you will be installing

new routers, you will have to obtain them.

3. Fill out a set of Metasys Ethernet Router planning forms for the

new network layout. You should have filled out a set of forms