System information

282
AS/400 IBM Network Station: Techniques for Deployment in a WAN
a different address to any device on the LAN that is using one of the
addresses in the range of addresses subnetted to the twinax workstations.
Figure 157. Example of a Network after Installing the IBM 5500
C.4 Optimizing Twinax Performance for the Client Workstation
To maximize your twinax performance for the client workstation, follow these
recommendations when using the configuration program:
IP Broadcasting Setting
Use the
Local
or
None
setting. The Local setting allows the devices on the
twinax subnet to recognize each other. The IP Broadcasting Transparent (or
default) setting allows non-twinax devices to include the twinax subnet in the
Network Neighborhood
, and the twinax devices subnet to include the
non-twinax subnet in the
Network Neighborhood
. However, this function can
degrade twinax performance if the 5500 control unit is attached to a large
network.
Dual Mode Setting
Every twinax workstation controller (WSC) handles ports one at a time. Every
device must wait until the WSC can handle its port. An older WSC has eight
LAN
Subnet mask: 255.255.255.0
Address range: 100.100.100.0
through 100.100.100.191
Subnet
Subnet mask: 255.255.255.192.
Address range: 100.100.100.192
through 100.100.100.255