All MIBs › CTRON-VLAN-EXTENSIONS-MIB › ctVlanIdToFidMapping
ctVlanIdToFidMapping
Module: CTRON-VLAN-EXTENSIONS-MIB
OID (symbolic): CTRON-VLAN-EXTENSIONS-MIB::ctVlanIdToFidMapping
OID (numeric): 1.3.6.1.4.1.52.4.1.2.16.4.4.1.5
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: The 12 bit Filter Database Identifier (FID) associated with the configured VLAN as specified by ctVlanVID.
For devices operating in Independent VLAN Learning (IVL) mode, as specified by a value of ivl(1) for ctVlanLearningMode, each VLAN will be mapped to a FID value equal to the VLAN Id specified by ctVlanId.
For devices operating in Shared VLAN Learning (SVL) mode, as specified by a value of svl(2) for ctVlanLearningMode, all VLANs will be to the same FID (1). On a device operating in SVL mode, sets to this object will have no effect.
For devices operating in Shared and Independent VLAN Learning (SIVL) mode, as specified by a value of svlivl(3) for ctVlanLearningMode, one or more VLANs can be mapped to each FID. Each VLAN can only be uniquely mapped to one FID. When more than one VLAN is mapped to a single FID they will operate together under the SVL mode of operation. When a single VLAN is mapped to a FID it will operate under the IVL mode of operation. The default value for this object, while the device is svlivl(3) mode, will be equal to the VLAN Id specified by ctVlanId.
What is ctVlanIdToFidMapping?
Maps this VLAN to a Filter Database Identifier (FID) that determines whether its learned MAC addresses are shared with other VLANs; under IVL each VLAN gets its own FID equal to its VLAN ID, under SVL all VLANs collapse to FID 1 (sets here are then ignored), and under mixed SVL/IVL mode an admin can group several VLANs onto one FID to let them share a MAC forwarding table.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.1.2.16.4.4.1.5 snmpwalk -v2c -c public <target> CTRON-VLAN-EXTENSIONS-MIB::ctVlanIdToFidMapping
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.1.2.16.4.4.1.5.1 snmpget -v2c -c public <target> CTRON-VLAN-EXTENSIONS-MIB::ctVlanIdToFidMapping.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.52.4.1.2.16.4.4.1.5.1 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::ctVlanIdToFidMapping 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 |
|---|---|---|
| 1.3.6.1.4.1.52.4.1.2.16.4 | ctVlanConfig | CTRON-VLAN-EXTENSIONS-MIB |
| 1.3.6.1.4.1.52.4.1.2.16.4.4 | ctVlanConfigTable | CTRON-VLAN-EXTENSIONS-MIB |
| 1.3.6.1.4.1.52.4.1.2.16.4.4.1 | ctVlanConfigEntry | CTRON-VLAN-EXTENSIONS-MIB |
| 1.3.6.1.4.1.52.4.1.2.16.4.4.1.5 | ctVlanIdToFidMapping | CTRON-VLAN-EXTENSIONS-MIB |