All MIBs › CISCO-VTP-MIB › vlanTrunkPortVlansActiveFirst2k
vlanTrunkPortVlansActiveFirst2k
Module: CISCO-VTP-MIB
OID (symbolic): CISCO-VTP-MIB::vlanTrunkPortVlansActiveFirst2k
OID (numeric): 1.3.6.1.4.1.9.9.46.1.6.1.1.30
Node type: OBJECT-TYPE
Type: Cisco2KVlanList
Access: read-only
Description: A string of octets containing one bit per VLAN with VlanIndex values of 0 through 2047.
If the bit corresponding to a VLAN is set to 1, it indicates that vlan is allowed and active in management domain.
If the bit corresponding to a VLAN is set to 0, it indicates that vlan is not allowed or not active in management domain.
What is vlanTrunkPortVlansActiveFirst2k?
This read-only bitmap reports, one bit per VLAN, which VLANs in the 0-through-2047 range are both allowed and currently active in this trunk port's management domain. An administrator uses this to quickly see which lower-range VLANs are genuinely live on this trunk, as opposed to merely configured but administratively suspended or pruned. For example, a VLAN whose bit is clear here, despite being configured, tells the admin that VLAN is either not allowed on this trunk or not currently active in the domain.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.9.46.1.6.1.1.30 snmpwalk -v2c -c public <target> CISCO-VTP-MIB::vlanTrunkPortVlansActiveFirst2k
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9.9.46.1.6.1.1.30.1 snmpget -v2c -c public <target> CISCO-VTP-MIB::vlanTrunkPortVlansActiveFirst2k.1
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OID Breakdown
Upper-level ancestors (8 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 |
| 1.3.6.1.4.1.9 | cisco | CAT2600-MIB |
| 1.3.6.1.4.1.9.9 | ciscoMgmt | CISCO-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.9.9.46 | ciscoVtpMIB | CISCO-VTP-MIB |
| 1.3.6.1.4.1.9.9.46.1 | vtpMIBObjects | CISCO-VTP-MIB |
| 1.3.6.1.4.1.9.9.46.1.6 | vlanTrunkPorts | CISCO-VTP-MIB |
| 1.3.6.1.4.1.9.9.46.1.6.1 | vlanTrunkPortTable | CISCO-VTP-MIB |
| 1.3.6.1.4.1.9.9.46.1.6.1.1 | vlanTrunkPortEntry | CISCO-VTP-MIB |
| 1.3.6.1.4.1.9.9.46.1.6.1.1.30 | vlanTrunkPortVlansActiveFirst2k | CISCO-VTP-MIB |