All MIBs › CTRON-VLAN-EXTENSIONS-MIB › ctVlanPortDiscardFrame
ctVlanPortDiscardFrame
Module: CTRON-VLAN-EXTENSIONS-MIB
OID (symbolic): CTRON-VLAN-EXTENSIONS-MIB::ctVlanPortDiscardFrame
OID (numeric): 1.3.6.1.4.1.52.4.1.2.16.3.1.1.4
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: A set of noDiscard(1) causes the port to submit all packets received on the port to the forwarding process, regardless, of the absence or presence of a VLAN tag in the packet. A set of discardUntagged(2) causes the port specified by ctVlanPortNum to discard all frames received that carry no VLAN classification (i.e. any untagged frames or priority tagged frames). A set of discardTagged(3) has no effect.
What is ctVlanPortDiscardFrame?
Controls what a port does with frames lacking VLAN classification: noDiscard(1), the default, forwards everything regardless of tagging, while discardUntagged(2) drops any untagged or priority-tagged frame -- useful for locking a trunk port to tagged traffic only. Setting discardTagged(3) is documented as having no effect.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.1.2.16.3.1.1.4 snmpwalk -v2c -c public <target> CTRON-VLAN-EXTENSIONS-MIB::ctVlanPortDiscardFrame
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.1.2.16.3.1.1.4.1 snmpget -v2c -c public <target> CTRON-VLAN-EXTENSIONS-MIB::ctVlanPortDiscardFrame.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.52.4.1.2.16.3.1.1.4.1 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::ctVlanPortDiscardFrame 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 |
| 1.3.6.1.4.1.52.4.1.2.16.3.1.1.4 | ctVlanPortDiscardFrame | CTRON-VLAN-EXTENSIONS-MIB |