SubnAdmGet() Operation

Background on the MAD's ComponentMask Field

An entity may issue a query to the SA requesting only records wherein the specified record element(s) match those supplied in the database query. The following example performs a SubnAdmGet(SwitchRecord) looking for any SwitchRecord with the SwitchInfo.LIDsPerPort element = 0008h (refer to Table 33-7 on page 938 and Table 29-4 on page 819):

  • The AttributeID identifies the record to be accessed (0014h specifies the SwitchRecord attribute).

  • Each specific record type contains one or more record elements. As an example, the SwitchInfo attribute (and therefore the SwitchRecord) contains 16 elements. “One bits” are placed in the 64-bit ComponentMask field in the bit positions corresponding ...

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