The value of svcMrpPolicyParamsISIDHigh specifies the highest value of
the 24 bit (0..16777215) service instance identifier for this service
that matches this entry.
The value of this field can be equal to but not lower than the value
of the svcMrpPolicyParamsISIDLow field.
If this field is modified in an existing row of this table, the new
value will be silently rejected if it's lower than the existing value
of svcMrpPolicyParamsISIDHigh.