CISCO-STACK-MIB :: vlanPortIslVlansAllowed

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCISCO-STACK-MIBvlanPortIslVlansAllowed

vlanPortIslVlansAllowed

Module: CISCO-STACK-MIB

OID (symbolic): CISCO-STACK-MIB::vlanPortIslVlansAllowed

OID (numeric): 1.3.6.1.4.1.9.5.1.9.3.1.5

Node type: OBJECT-TYPE

Type: OCTET STRING

Access: read-write

Description: An indication of which Virtual LANs are allowed on this Inter-Switch Link. This is an octet string value with bits set to indicate allowed VLANs. It can be interpreted as a sum of f(x) as x goes from 0 to 1023, where f(x) = 0 for VLAN x not allowed and f(x) = exp(2, x) for VLAN x allowed.

What is vlanPortIslVlansAllowed?

This read-write bitmask object configures which VLANs are permitted to pass over a given Inter-Switch Link (ISL) trunk port.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.5.1.9.3.1.5
snmpwalk -v2c -c public <target> CISCO-STACK-MIB::vlanPortIslVlansAllowed

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.9.5.1.9.3.1.5.1
snmpget -v2c -c public <target> CISCO-STACK-MIB::vlanPortIslVlansAllowed.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.9.5.1.9.3.1.5.1 s <value>

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OID Breakdown

Upper-level ancestors (8 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.9ciscoCAT2600-MIB
1.3.6.1.4.1.9.5workgroupCISCO-ES-STACK-MIB
Numeric OIDNameModule
1.3.6.1.4.1.9.5.1ciscoStackMIBCISCO-STACK-MIB
1.3.6.1.4.1.9.5.1.9vlanGrpCISCO-STACK-MIB
1.3.6.1.4.1.9.5.1.9.3vlanPortTableCISCO-STACK-MIB
1.3.6.1.4.1.9.5.1.9.3.1vlanPortEntryCISCO-STACK-MIB
1.3.6.1.4.1.9.5.1.9.3.1.5vlanPortIslVlansAllowedCISCO-STACK-MIB