All MIBs › CROUTE-MIB › drVlConfIndex
drVlConfIndex
Module: CROUTE-MIB
OID (symbolic): CROUTE-MIB::drVlConfIndex
OID (numeric): 1.3.6.1.4.1.81.31.5.1.1.2
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: A unique value for each interface. Its value ranges between 1 and the value of ifNumber. The value for each interface must remain constant at least from one re-initialization of the entity's network management system to the next re-initialization.
What is drVlConfIndex?
This is a unique numeric index for a VLAN interface configuration entry, matching the corresponding row in the standard ifTable and remaining stable across agent reinitializations. Administrators rely on this stability to correlate a specific VLAN entry with the same ifIndex when re-polling after a reboot, ensuring monitoring scripts don't lose track of which VLAN they're watching. For instance, VLAN interface 7 will keep drVlConfIndex value 7 even after the switch is power-cycled, so a monitoring tool can safely re-associate historical data with it.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.81.31.5.1.1.2 snmpwalk -v2c -c public <target> CROUTE-MIB::drVlConfIndex
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.81.31.5.1.1.2.1 snmpget -v2c -c public <target> CROUTE-MIB::drVlConfIndex.1
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OID Breakdown
Upper-level ancestors (7 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 |
| 1.3.6.1.4.1.81 | lannet | GEN-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.81.31 | croute | CROUTE-MIB |
| 1.3.6.1.4.1.81.31.5 | drLayer2 | CROUTE-MIB |
| 1.3.6.1.4.1.81.31.5.1 | drVlConfTable | CROUTE-MIB |
| 1.3.6.1.4.1.81.31.5.1.1 | drVlConfEntry | CROUTE-MIB |
| 1.3.6.1.4.1.81.31.5.1.1.2 | drVlConfIndex | CROUTE-MIB |