This table contains zero or more rows, representing mappings of logical entity and physical component to external MIB identifiers. Each physical port in the system may be associated with a mapping to an external identifier, which itself is associated with a particular logical entity's naming scope. A 'wildcard' mechanism is provided to indicate that an identifier is associated with more than one logical entity.
The indexes of the table are entPhysicalIndex, entAliasLogicalIndexOrZero.
OID |
Object |
Syntax |
Max Access |
Description |
Implemented Specifications |
---|---|---|---|---|---|
1.3.6.1.2.1.47.1.3.2.1.1 |
entAliasLogicalIndexOrZero |
Integer32{(0,2147483647)} |
not-accessible |
The value of this object identifies the logical entity that defines the naming scope for the associated instance of the 'entAliasMappingIdentifier' object. If this object has a non-zero value, then it identifies the logical entity named by the same value of entLogicalIndex. If this object has a value of zero, then the mapping between the physical component and the alias identifier for this entAliasMapping entry is associated with all unspecified logical entities. That is, a value of zero (the default mapping) identifies any logical entity that does not have an explicit entry in this table for a particular entPhysicalIndex/entAliasMappingIdentifier pair. For example, to indicate that a particular interface (e.g., physical component 33) is identified by the same value of ifIndex for all logical entities, the following instance might exist: entAliasMappingIdentifier.33.0 = ifIndex.5 In the event an entPhysicalEntry is associated differently for some logical entities, additional entAliasMapping entries may exist, e.g.: entAliasMappingIdentifier.33.0 = ifIndex.6 entAliasMappingIdentifier.33.4 = ifIndex.1 entAliasMappingIdentifier.33.5 = ifIndex.1 entAliasMappingIdentifier.33.10 = ifIndex.12 Note that entries with non-zero entAliasLogicalIndexOrZero index values have precedence over zero-indexed entries. In this example, all logical entities except 4, 5, and 10, associate physical entity 33 with ifIndex.6. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.3.2.1.2 |
entAliasMappingIdentifier |
OBJECT IDENTIFIER |
read-only |
The value of this object identifies a particular conceptual row associated with the indicated entPhysicalIndex and entLogicalIndex pair. Because only physical ports are modeled in this table, only entries that represent interfaces or ports are allowed. If an ifEntry exists on behalf of a particular physical port, then this object should identify the associated 'ifEntry'. For repeater ports, the appropriate row in the 'rptrPortGroupTable' should be identified instead. For example, suppose a physical port was represented by entPhysicalEntry.3, entLogicalEntry.15 existed for a repeater, and entLogicalEntry.22 existed for a bridge. Then there might be two related instances of entAliasMappingIdentifier: entAliasMappingIdentifier.3.15 == rptrPortGroupIndex.5.2 entAliasMappingIdentifier.3.22 == ifIndex.17 It is possible that other mappings (besides interfaces and repeater ports) may be defined in the future, as required. Bridge ports are identified by examining the Bridge MIB and appropriate ifEntries associated with each 'dot1dBasePort', and are thus not represented in this table. |
This object is implemented as defined in the corresponding MIB files. |