Dell-VRTX-BRGMACSWITCH-MIB

Description: Manages MAC address table and bridging forwarding database for the Dell VRTX switch module.

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Dell-VRTX-BRGMACSWITCH-MIB is a Dell private MIB for the VRTX chassis switch module that manages the bridging/MAC address forwarding database, including table size limits, aging behavior, and spanning tree participation. It exposes the switch's MAC table version and maximum table size, counts of dynamically learned entries, old-entry deletion mode, spanning tree enable state, and trap thresholds (yellow/red boundary levels) with associated trap counters for MAC table utilization. This MIB is directly useful for monitoring hardware/software forwarding health: tracking rlBrgMacSwDynamicTables against rlBrgMacSwMaxTableNumber reveals how close the switch is to MAC table exhaustion, and the yellow/red boundary trap objects (rlBrgMacSwYellowBoundary/rlBrgMacSwRedBoundary with rlBrgMacSwOperTrapCount) provide an early-warning alarm mechanism before a table-full condition causes flooding. It is a Dell-specific private MIB but models concepts standardized in IEEE 802.1D/802.1Q bridging and typically complements a standard bridge MIB for full forwarding-database visibility. It is deployed on Dell PowerEdge VRTX chassis switch modules to keep MAC learning and spanning tree operation healthy. Engineers can download the Dell-VRTX-BRGMACSWITCH-MIB file directly to load it into their MIB browser.

An admin would poll rlBrgMacSwDynamicTables against rlBrgMacSwMaxTableNumber to see how full the MAC address table is, and check whether rlBrgMacSwYellowBoundary or rlBrgMacSwRedBoundary thresholds have been crossed, which would raise rlBrgMacSwTrapEnable-gated alerts. Rising rlBrgMacSwOperTrapCount relative to rlBrgMacSwAdminTrapFrequency indicates the table is repeatedly approaching capacity, a sign of a MAC flooding event or an overly large flat L2 domain. Checking rlBrgMacSwSpanningTree confirms STP is active, which is critical context when diagnosing a sudden MAC table churn from a loop.

Dell VRTX bridge MAC switching parameters and MAC table management for network switching.