Receiving Message #1

On receipt of message #1, the host MUST check for the presence of the "Vid-Initial-Contact" vendor ID (as specified in section If the "Vid-Initial-Contact" vendor ID payload is present in the message, the host MUST set the Initial Contact flag for the corresponding MMSAD entry.

If the host is part of a cluster, it MAY use this information to rebalance the MM SA to a different host within the cluster.<24>