All MIBs › CROUTE-MIB › drVlConfAlias
drVlConfAlias
Module: CROUTE-MIB
OID (symbolic): CROUTE-MIB::drVlConfAlias
OID (numeric): 1.3.6.1.4.1.81.31.5.1.1.3
Node type: OBJECT-TYPE
Type: DisplayString
Access: read-write
Description: This object is an 'alias' name for the lower-layer interface on top of which this IP interface is defined. The alias is specified by the network manager, and provides a non-volatile 'handle' for the lower-layer interface. The semantics of the object are similar to the semantics of the ifAlias object, defined by the Interfaces MIB. At the time when this Madge MIB object was defined, the latest release of the Interfaces MIB was draft-ietf-ifmib-mib-05.txt. The purpose is to support all methods (static or dynamic) for creation of interfaces and to allow creation of IP table entries without the need of the layer 2 interface to be present on the device at the time of the creation. It is assumed that some implementation dependent mechanisms allow the IP application to be informed about the creation of new lower layer interfaces.
What is drVlConfAlias?
This is a short, up to 16 character, administrator-assigned label that names the lower-layer physical interface underneath a VLAN, functioning like the standard ifAlias but scoped to Madge's VLAN configuration table. Because it is a name the network manager writes rather than one derived from hardware, it gives a human-readable handle that survives even if the underlying port numbering changes, helping staff identify interfaces at a glance rather than by raw index. For example, an admin could set drVlConfAlias to Uplink-A on the interface carrying VLAN 20's trunk so anyone browsing the table immediately recognizes its role.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.81.31.5.1.1.3 snmpwalk -v2c -c public <target> CROUTE-MIB::drVlConfAlias
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.81.31.5.1.1.3.1 snmpget -v2c -c public <target> CROUTE-MIB::drVlConfAlias.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.81.31.5.1.1.3.1 s <value>
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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 |
| 1.3.6.1.4.1.81.31.5.1.1.3 | drVlConfAlias | CROUTE-MIB |