"Cluster Alias Phase IV Address (aa.nnnn OR AA-00-04-00-xx-xx)"

    Specify either the system's DECnet Phase IV node address or
    physical address.

    o  The Phase IV node address has the format
       are_-number.node_number (for example, 63.171).

    o  The physical address has the format AA-00-04-00-xx-xx,
       where xx-xx is calculated from the Phase IV node address.

       To determine the physical address:

       1. Convert the Phase IV node address to its decimal equivalent
          follows:

          (area-number * 1024) + node-number = decimal equivalent

          (For example, (63 * 1024) + 171 = 64683 decimal)

       2. Convert the decimal node address to its hexadecimal
          equivalent and reverse the order of the bytes to form the
          hexadecimal node address.

          (For example, 64683 decimal = FCAB hexadecimal, reversed =
          ABFC hexnodeaddress)

       3. Incorporate the hexadecimal node address in the following
          format:

          AA-00-04-00-hexnodeaddress (For example, AA-00-04-00-AB-
          FC)