This attribute specifies the default PNNI scope for ATM addresses
associated with this node. The PNNI scope determines the level to
which the address will be advertised within the PNNI routing
domain. A provisioned Addr component may override the default
scope in a PnniInfo subcomponent.
A value of 0 means that all addresses which do not have
provisioned scopes will be advertised globally within the PNNI
routing domain.
The value specified must be numerically smaller than or equal to
that of the lowest level at which this node is configured in the PNNI
hierarchy.