This attribute specifies the Module Identifier (MID) associated with
the Passport node.
The MID is used to identify an Passport node supporting the
transport of DPN traffic. Its value must be different from that of all
MIDs assigned to Passport nodes in this RID subnet (interconnected
Passport nodes sharing a RID) and AMs in clusters supported by
this subnet. If routing zones are used, it must also be unique from
all other MIDs in this zone.
The moduleId must be set when a DpnAddressPlan component is
configured on an Passport node.
Changing the value of the moduleId will cause the node to restart.