You must also set up a system value to use brokers to connect to each server in the cluster. The system value category is HIGHWAY and the key is the queue target name, typically SPSBB. For example, System Value Setup displays the setup for the SPSBB listener. The broker IDs names map back to the names used in the Registry Editor. In this example, the broker names PRIMARY and SECONDARY map back to Properties-PRIMARY and Properties-SECONDARY in the registry.