VLAN

Description: Provides basic VLAN port assignment and membership configuration for IEEE 802.1Q-capable switches.

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VLAN is a vendor-neutral, standards-based MIB module providing basic configuration of IEEE 802.1Q Virtual LAN (VLAN) port assignment and membership on managed Ethernet switches. Its data covers configuration objects for mapping switch ports to VLANs and reading back current VLAN membership state. Its monitoring role is primarily configuration-status oriented — verifying that ports are assigned to the correct VLAN and detecting unintended membership changes that could cause traffic segmentation issues, rather than exposing hardware sensors. It aligns with IEEE 802.1Q as its underlying standard, and often coexists with vendor-specific VLAN MIBs (e.g., a proprietary VTP MIB) that extend it. It is typically deployed on any IEEE 802.1Q-capable managed Ethernet switch across enterprise and service-provider networks. Engineers implementing or auditing this functionality typically reference the VLAN RFC/standard documentation for the authoritative specification.

No specific sample objects were provided for this MIB; based on the short description, an administrator would poll per-port VLAN membership/assignment objects to confirm a port is on the expected VLAN, and detect a case where a port unexpectedly falls back to the default VLAN indicating a configuration or trunking negotiation issue, though the exact object names are not available in this excerpt.

Exalt Communications VLAN configuration MIB enabling and managing virtual LAN interfaces and VLAN IDs on network devices.