ServiceInstanceTarget
Denotes a generic service instance target. An ServiceInstanceTarget value is always interpreted within the context of an ServiceInstanceTargetType value. Every usage of the ServiceInstanceTarget textual convention is required to specify the ServiceInstanceTargetType object which provides the context. It is suggested that the ServiceInstanceTargetType object is logically registered before the object(s) which use the ServiceInstanceTarget textual convention if they appear in the same logical row. The value of an ServiceInstanceTarget object must always be consistent with the value of the associated ServiceInstanceTargetType object. Attempts to set an ServiceInstanceTarget object to a value which is inconsistent with the associated ServiceInstanceTargetType must fail with an inconsistentValue error. When this textual convention is used as the syntax of an index object, there may be issues with the limit of 128 sub-identifiers specified in SMIv2, STD 58. In this case, the object definition MUST include a 'SIZE' clause to limit the number of potential instance sub-identifiers.