AT-CHASSIS-MIB

Description: Monitors Allied Telesis modular chassis hardware, including slot occupancy, backplane status, and power budget.

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AT-CHASSIS-MIB is a vendor-specific MIB from Allied Telesis for its modular, chassis-based switch and router product families. It exposes hardware inventory and status objects for chassis slots, line/interface cards, the backplane, and system power budget, along with trap notifications for chassis-level events. Its primary monitoring value is hardware health: administrators use it to confirm slot occupancy (which card types are inserted where), detect card insertion/removal or failure events, and watch power budget/backplane status to catch a supply shortfall or backplane fault before it takes down line cards. It typically works alongside Allied Telesis's ENTITY-MIB-style inventory objects and standard trap conventions rather than replacing them outright. It is deployed on Allied Telesis modular chassis switches used as core/aggregation devices in enterprise and campus networks. Engineers can download the AT-CHASSIS-MIB file directly to load it into their MIB browser.

An operator would poll the chassis slot/card status table to confirm every populated slot reports a healthy card-present and operational state, and subscribe to the chassis traps to be alerted the instant a card is removed, inserted, or a power-budget threshold is exceeded. A trap indicating a slot transitioning from "card present/ok" to a fault state would flag a failed or improperly seated line card needing replacement.

Provides chassis-based system information and trap notifications for Allied Telesis modular equipment.