3Com WX4400 Reference Manual page 287

Bias is the priority of one WX connection over other WX connections
to a single MAP for booting, configuration, and data transfer. A
configuration with a high bias has priority over a configuration for the
same MAP with low bias. The default is High.
If the bias for all connections is the same, the MAP selects the switch
that has the greatest capacity to add more active MAPs. For example,
if an MAP is dual homed to two WX-4400 switches, and one of the
switches has 50 active MAPs while the other switch has 60 active
MAPs, the new MAP selects the switch that has only 50 active MAPs.
b The number of redundant connections available for each configured
WX switch is listed. Select the WX switch the MAP will use for a
redundant connection and click OK.
3 To remove all redundant connections for an MAP, select the MAP and
click Clear Connections.
4 To create a direct redundant connection for an MAP, select the MAP,
click Create, and select Direct Connection from the list.
a Select the WX switch to which the MAP is connected.
b Select the port to which the MAP is connected.
c Set the bias to High or Low.
d Select Enable POE to enable power over Ethernet on the port
e Click Finish.
5 To create a distributed redundant connection for an MAP, select the
MAP, click Create, and select Distributed Connection from the list.
a Select the WX switch to which the MAP establishes a distributed
connection.
b Set the bias to High or Low.
c Click Finish.
6 To modify a redundant connection for an MAP, select the MAP in the
upper box, then select the connection in the lower box and click
Properties.
Viewing and Configuring MAPs 287