The CONFIGURATION SHOW CLUSTER_AUTHORIZATION command displays
    the group number and multicast address, and Ethernet address
    used to send a message to all nodes in the cluster. The group
    number and multicast address are recorded in SYS$SYSTEM:CLUSTER_
    AUTHORIZE.DAT during the CLUSTER_CONFIG dialog.

    In a cluster or multinode environment, SYSMAN displays the group
    number of the first node and then displays the names of any
    nodes in the cluster whose group numbers, passwords, or both,
    are different.