natv2InstanceTable
NATV2-MIB ·
.1.3.6.1.2.1.234.2.1
Object
table
Table of NAT instances. As well as state and counter
objects, it provides the instance index, instance name, and
the last discontinuity time object that is applicable to
the counters. It also contains writable thresholds for
reporting of notifications and limits on usage of resources
at the level of the NAT instance.
It is assumed that NAT instances can be created and deleted
dynamically, but this MIB module does not provide the means
to do so. For restrictions on assignment and maintenance of
the NAT index instance, see the description of
natv2InstanceIndex in the table below. For the requirements
on maintenance of the values of the counters in this table,
see the description of natv2InstanceDiscontinuityTime in
this table.
Each NAT instance has its own resources and behavior. The
resources include memory as reflected in space for map
entries, processing power as reflected in the rate of map
creation and deletion, and mappable addresses in each realm
that can play the role of an external realm for at least
some mappings for that instance. The NAT instance table
includes limits and notification thresholds that relate to
memory usage for mapping at the level of the whole instance.
The limit on number of subscribers with active mappings is a
limit to some extent on processor usage.
The mappable 'external' addresses may or may not be
organized into address pools. For a definition of address
pools, see the description of natv2PoolTable. If the instance
does support address pools, it also has a pooling behavior.
Mapping, filtering, and pooling behavior are defined in the
descriptions of the natv2InstancePortMappingBehavior,
natv2InstanceFilteringBehavior, and
natv2InstancePoolingBehavior objects in this table. The
instance also has a fragmentation behavior, defined in the
description of the natv2InstanceFragmentBehavior object.
Context
- MIB
- NATV2-MIB
- OID
.1.3.6.1.2.1.234.2.1- Type
- table
- Status
- current
- Parent
- natv2MIBInstanceObjects
- Siblings
- 5
- Children
- 1
Syntax
No syntax metadata recorded.
Values & Constraints
No enumerated values or constraints recorded.
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| natv2ProtocolTable Table of protocols with per-protocol counters. Conceptual
rows of the table are indexed by the combination of the NAT
instance number and the IANA-assigned upper-layer protocol
n… | table | - | .1.3.6.1.2.1.234.2.2 |
| natv2PoolTable Table of address pools, applicable only if these are
supported by the NAT instance. An address pool is a set of
addresses and ports in a particular realm, available fo… | table | - | .1.3.6.1.2.1.234.2.3 |
| natv2PoolRangeTable This table contains address ranges used by pool entries.
It is an expansion of natv2PoolTable. | table | - | .1.3.6.1.2.1.234.2.4 |
| natv2AddressMapTable Table of mappings from the internal to external address. By
definition, this is a snapshot of NAT instance state at a
given moment. Indexed by NAT instance, internal realm, and
… | table | - | .1.3.6.1.2.1.234.2.5 |
| natv2PortMapTable Table of port map entries indexed by the NAT instance,
protocol, and external realm and address. A port map entry
associates an internal upper-layer protocol endpoint with an
end… | table | - | .1.3.6.1.2.1.234.2.6 |
Child Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| natv2InstanceEntry Objects related to a single NAT instance. | row | - | .1.3.6.1.2.1.234.2.1.1 |