All MIBs › GENERIC-3COM-VLAN-MIB-1-0-1 › a3ComVlanEncapsIfTag
a3ComVlanEncapsIfTag
Module: GENERIC-3COM-VLAN-MIB-1-0-1
OID (symbolic): GENERIC-3COM-VLAN-MIB-1-0-1::a3ComVlanEncapsIfTag
OID (numeric): 1.3.6.1.4.1.43.10.1.14.4.1.1.3
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: The tag used when encapsulating packets transmitted, or de-encapsulating packets received through this interface.
What is a3ComVlanEncapsIfTag?
This value is the numeric VLAN tag the encapsulation interface inserts into outgoing frames and matches against on incoming frames, using the algorithm set by a3ComVlanEncapsIfType. Getting this tag right is what lets the switch correctly demultiplex several VLANs sharing one physical link — frames tagged with a different value simply won't match this encapsulation interface. For an 802.1q trunk carrying VLAN 20, an admin would set a3ComVlanEncapsIfTag to 20 so the interface correctly encapsulates and recognizes frames for that VLAN.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.43.10.1.14.4.1.1.3 snmpwalk -v2c -c public <target> GENERIC-3COM-VLAN-MIB-1-0-1::a3ComVlanEncapsIfTag
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.43.10.1.14.4.1.1.3.1 snmpget -v2c -c public <target> GENERIC-3COM-VLAN-MIB-1-0-1::a3ComVlanEncapsIfTag.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.43.10.1.14.4.1.1.3.1 i <value>
Start monitoring Legacy 3Com switching equipment (VLAN interface config) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the GENERIC-3COM-VLAN-MIB-1-0-1::a3ComVlanEncapsIfTag OID value, configure state conditions and alerts, and monitor any Legacy 3Com switching equipment (VLAN interface config) from a single console.
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 |
| 1.3.6.1.4.1.43 | a3Com | A3COM-AUDL-R1-MIB |
| 1.3.6.1.4.1.43.10 | generic | A3Com-products-MIB |
| 1.3.6.1.4.1.43.10.1 | genExperimental | GENERIC-3COM-TRUNK-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.43.10.1.14 | genVirtual | GENERIC-3COM-VLAN-MIB-1-0-1 |
| 1.3.6.1.4.1.43.10.1.14.4 | a3ComEncapsulationGroup | GENERIC-3COM-VLAN-MIB-1-0-1 |
| 1.3.6.1.4.1.43.10.1.14.4.1 | a3ComVlanEncapsIfTable | GENERIC-3COM-VLAN-MIB-1-0-1 |
| 1.3.6.1.4.1.43.10.1.14.4.1.1 | a3ComVlanEncapsIfEntry | GENERIC-3COM-VLAN-MIB-1-0-1 |
| 1.3.6.1.4.1.43.10.1.14.4.1.1.3 | a3ComVlanEncapsIfTag | GENERIC-3COM-VLAN-MIB-1-0-1 |