Cluster channels allow a cluster queue manager to send cluster information to, and receive cluster information from, other queue managers in the cluster. If you do not specify a value for either the Shared in cluster (CLUSTER) attribute, or the Shared in a list of clusters (CLUSNL) attribute, the cluster channels are redundant.
Specify a value for either the Shared in cluster (CLUSTER) attribute or the Shared in a list of clusters (CLUSNL) attribute.