HP StorageWorks 2/16V Brocade Fabric OS MIB Reference (53-1000241-01, November - Page 43

AT Group 2 AT Group Implementation of the Address Translation group is mandatory for all systems. Note, however, that this group is deprecated by MIB-II. From MIB-II onward, each network protocol group contains its own address translation tables. atTable 1.3.6.1.2.1.3.1 The Address Translation group contains one table, which is the union across all interfaces of the translation tables for converting a network address (for example, an IP address) into a subnetworkspecific address. This document refers to such a subnetwork-specific address as a physical address. For example, for broadcast media, where ARP is in use, the translation table is equivalent to the ARP cache; on an X.25 network, where non-algorithmic translation to X.121 addresses is required, the translation table contains the network address to X.121 address equivalences. The Address Translation tables contain the network address to physical address equivalences. Some interfaces do not use translation tables for determining address equivalences (for example, DDN-X.25 has an algorithmic method); if all interfaces are of this type, then the Address Translation table is empty. atEntry 1.3.6.1.2.1.3.1.1 Index Each entry contains one network address to physical address equivalence. atIfIndex, atNetAddress atIfIndex 1.3.6.1.2.1.3.1.1.1 The interface on which this entry's equivalence is effective. The interface identified by a particular value of this index is the same interface as identified by the same value of ifIndex. atPhysAddress 1.3.6.1.2.1.3.1.1.2 The media-dependent physical address. atNetAddress 1.3.6.1.2.1.3.1.1.3 The network address (for example, the IP address) corresponding to the media-dependent physical address. Fabric OS MIB Reference Publication Number: 53-1000241-01 2-15