All MIBs › CTRON-VLAN-EXTENSIONS-MIB › ctVlanPortOperationalMode
ctVlanPortOperationalMode
Module: CTRON-VLAN-EXTENSIONS-MIB
OID (symbolic): CTRON-VLAN-EXTENSIONS-MIB::ctVlanPortOperationalMode
OID (numeric): 1.3.6.1.4.1.52.4.1.2.16.3.1.1.5
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: A set of dot1QTrunk(1) causes the port specified by ctVlanPortNum to transmit tagged frames exclusively, and ctVlanPortDiscardFrame is set to a value of discardUntagged(2). Additionally the specified port is added to the egress list of all existing VLANS, and all existing VLANS are enabled as specified by ctVlanStatus. If new VLANS are established and any port is configured as a dot1QTrunk(1) then the newly created VLAN will automatically be added to the egress list (ctVlanEgressList) for the port specified by ctVlanPortNum. A set of hybrid(2) allows the port to transmit both tagged and untagged frames. Additionally the specified port is removed from all VLANS except the the VLAN as specified by ctVlanPortVID. A set of hybrid(2) will also set ctVlanPortDiscardFrame to a value of noDiscard(1). A set of dot1dTrunk(3) causes the port specified by ctVlanPortNum to transmit untagged frames exclusively, and ctVlanPortDiscardFrame is set to a value of noDiscard(1). Additionally the specified port is added to the egress list and the untagged list of all existing VLANS, and all existing VLANS are enabled as specified by ctVlanStatus. If new VLANS are established and any port is configured as a dot1dTrunk(3) then the newly created VLAN will automatically be added to the egress list (ctVlanEgressList) and the untagged list (ctVlanEgressUntaggedList) for the port specified by ctVlanPortNum.
What is ctVlanPortOperationalMode?
Sets the port's VLAN tagging behavior: dot1QTrunk(1) forces tagged-only frames and joins the port to every existing VLAN's egress list (a classic 802.1Q trunk); hybrid(2), the default, sends both tagged and untagged frames and restricts the port to just its PVID's VLAN; dot1dTrunk(3) sends untagged frames only while still joining every VLAN. An admin picks dot1QTrunk for an inter-switch uplink and hybrid for a mixed access port.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.1.2.16.3.1.1.5 snmpwalk -v2c -c public <target> CTRON-VLAN-EXTENSIONS-MIB::ctVlanPortOperationalMode
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.1.2.16.3.1.1.5.1 snmpget -v2c -c public <target> CTRON-VLAN-EXTENSIONS-MIB::ctVlanPortOperationalMode.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.52.4.1.2.16.3.1.1.5.1 i <value>
Start monitoring Cabletron Systems 802.1Q-compliant switch (VLAN extensions) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CTRON-VLAN-EXTENSIONS-MIB::ctVlanPortOperationalMode OID value, configure state conditions and alerts, and monitor any Cabletron Systems 802.1Q-compliant switch (VLAN extensions) from a single console.
OID Breakdown
Upper-level ancestors (11 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 |
| 1.3.6.1.4.1.52 | cabletron | Cabletron-MIB |
| 1.3.6.1.4.1.52.4 | mibs | CT-PRIORITY-QUEUING |
| 1.3.6.1.4.1.52.4.1 | ctron | CTRON-ISDN-CONFIGURATION-MIB |
| 1.3.6.1.4.1.52.4.1.2 | ctDataLink | CTRON-ISDN-CONFIGURATION-MIB |
| 1.3.6.1.4.1.52.4.1.2.16 | ctVlanExt | CTRON-MIB-NAMES |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.52.4.1.2.16.3 | ctVlanPortConfig | CTRON-VLAN-EXTENSIONS-MIB |
| 1.3.6.1.4.1.52.4.1.2.16.3.1 | ctVlanPortConfigTable | CTRON-VLAN-EXTENSIONS-MIB |
| 1.3.6.1.4.1.52.4.1.2.16.3.1.1 | ctVlanPortConfigEntry | CTRON-VLAN-EXTENSIONS-MIB |
| 1.3.6.1.4.1.52.4.1.2.16.3.1.1.5 | ctVlanPortOperationalMode | CTRON-VLAN-EXTENSIONS-MIB |