FW 05.01.00 and SW 07.01.00 HP StorageWorks SNMP Reference for Directors and Edge Switches Reference Guide (AA-RQ7BD-TE, June 2003)

SNMP Support
43SNMP Reference for Directors and Edge Switches
Address Translation Group/Table
Implementation of the Address Translation group is mandatory for all systems.
Note however that this group is deprecated by MIB-II. That is, it is being included
solely for compatibility with MIB-I nodes, and will most likely be excluded from
MIB-III nodes. From MIB-II and onwards, each network protocol group contains
its own address translation tables.
The Address Translation group contains one table, which is the union across all
interfaces of the translation tables for converting a NetworkAddress (for example,
an IP address) into a subnetwork-specific address. For lack of a better term, this
document refers to such a subnetwork-specific address as a `physical' address.
Examples of such translation tables are: for broadcast media where ARP is in use,
the translation table is equivalent to the ARP cache; or, on an X.25 network where
non-algorithmic translation to X.121 addresses is required, the translation table
contains the NetworkAddress to X.121 address equivalences.
MIB-2
Object
Name
Type Access Description
atIfIndex INTEGER RW 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 PhysAddress RW The media-dependent `physical' address.
Setting this object to a null string (one of
zero length) has the effect of invaliding the
corresponding entry in the atTable object;
that is, it effectively disassociates the
interface identified with said entry from the
mapping identified with said entry. It is an
implementation-specific matter as to whether
the agent removes an invalidated entry from
the table. Accordingly, management stations
must be prepared to receive tabular
information from agents that corresponds to
entries not currently in use. Proper
interpretation of such entries requires
examination of the relevant atPhysAddress
object.
atNetAddress NetworkAddress RW The NetworkAddress (for example, the IP
address) corresponding to the
media-dependent `physical' address.