All MIBs › INTEL-ES480-VLAN-MIB › es480tNextAvailableVirtIfIndex
es480tNextAvailableVirtIfIndex
Module: INTEL-ES480-VLAN-MIB
OID (symbolic): INTEL-ES480-VLAN-MIB::es480tNextAvailableVirtIfIndex
OID (numeric): 1.3.6.1.4.1.343.6.60.2.2.1
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: The value of the next available virtual ifIndex. This object is used by an NMS to select an index value for row-creation in tables indexed by ifIndex. The current value of this object is changed to a new value when the current value is written to an agent's table, that is indexed by ifIndex. Row creation using the current value of this object, allocates a virtual ifIndex. Note the following:
1. A newly created row does not have to be active(1) for the agent to allocate the virtual ifIndex.
2. Race conditions between multiple NMS's end when a row is created. Rows are deemed created when a setRequest is successfully committed (i.e. the errorStats is noError(0)).
3. An agent that exhausts its supply of virual ifIndex values returns zero as the value of this object. This can be used by an NMS as an indication to deleted unused rows and reboot the device.
What is es480tNextAvailableVirtIfIndex?
This value reports the next available virtual ifIndex an NMS should use when creating a new row in a table indexed by ifIndex, such as the VLAN or encapsulation interface tables; a returned value of zero means the device has run out of virtual ifIndex values. Admins and management software read it immediately before every VLAN or encapsulation row creation to get a valid, non-conflicting index. If es480tNextAvailableVirtIfIndex returns 0, an admin knows the switch has exhausted its virtual interface indexes and needs unused VLAN rows deleted and the device rebooted before more can be created.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.343.6.60.2.2.1 snmpwalk -v2c -c public <target> INTEL-ES480-VLAN-MIB::es480tNextAvailableVirtIfIndex
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.343.6.60.2.2.1.1 snmpget -v2c -c public <target> INTEL-ES480-VLAN-MIB::es480tNextAvailableVirtIfIndex.1
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OID Breakdown
Upper-level ancestors (9 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.343 | intel | AOLAN-MIB |
| 1.3.6.1.4.1.343.6 | mib2ext | EXPRESSGS-MIB |
| 1.3.6.1.4.1.343.6.60 | es480tAgent | INTEL-ES480-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.343.6.60.2 | es480tVlan | INTEL-ES480-VLAN-MIB |
| 1.3.6.1.4.1.343.6.60.2.2 | es480tVirtualGroup | INTEL-ES480-VLAN-MIB |
| 1.3.6.1.4.1.343.6.60.2.2.1 | es480tNextAvailableVirtIfIndex | INTEL-ES480-VLAN-MIB |