A value describing an implementation limitation for the device related to the PRC or PRC attribute identified by the policyCompLimitsComponent data in this class instance. Values for this object are derived from the defined error values associated with the PRC of the identified attribute or the PRC itself. All genericPrc and specificPrc (defined in a PRC INSTALL-ERRORS clause) error codes represent valid limitation type values. For example, an implementation of the qosIpAce class may be limited in several ways, such as address mask, protocol and Layer 4 port options. These limitations could be exported using this table with the following instances: Prid Component Type Guidance 1 'qosIpAceDstAddrMask' 'valueSupLimited' 0xFFFFFFFF 2 'qosIpAceSrcAddrMask' 'valueSupLimited' 0xFFFFFFFF 3 'qosIpAceProtocol' 'valueSupLimited' 0x06 4 'qosIpAceProtocol' 'valueSupLimited' 0x17 5 'qosIpAceDstL4PortMin' 'invalidDstL4PortData' 6 'qosIpAceDstL4PortMax' 'invalidDstL4PortData' 7 'qosIpAcePermit' 'enumSupLimited' 'true' The above entries describe a number of limitations that may be in effect for the qosIpAce class on a given device. The limitations include restrictions on acceptable values for certain attributes and indications of the relationship between related attributes.