BROCADE-UDLD-MIB

Description: Manages UDLD (Unidirectional Link Detection) configuration and port status on Brocade Ethernet switches.

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BROCADE-UDLD-MIB is a Brocade (BCSI enterprise) MIB supporting Unidirectional Link Detection (UDLD) on Brocade Ethernet switches, a Layer 2 feature that detects one-way fiber or copper links that could otherwise cause loops or blackholed traffic. Per its module description, this module is focused on UDLD-related notifications rather than a large set of polled configuration/status objects. Its monitoring relevance is fault detection at the link/hardware level: a UDLD notification alerts operators the moment a port is detected as unidirectional, typically indicating a failing transceiver, a miswired fiber pair, or a bad cable. It complements the standard IF-MIB and any UDLD configuration objects by providing the notification layer for link-health events. It is deployed on Brocade (and Brocade-derived Foundry/BCSI) switches wherever fiber links between switches need unidirectional-fault protection, commonly in data-center core/aggregation layers. Engineers can download the BROCADE-UDLD-MIB file directly to load it into their MIB browser.

The sample objects here are almost entirely notification-related (bcsiUdldNotifications, bcsiUdldNotifObjects, bcsiUdldNotifMessage) rather than polled counters, so the realistic scenario is trap-driven: an NMS subscribed to bcsiUdldNotifications receives an alert carrying bcsiUdldNotifMessage text whenever a port transitions to unidirectional/error-disabled state. That trap reveals a specific port has a physical-layer fault requiring hands-on inspection, something polling alone would be slow to catch. Given the sparse object list, no additional scalar/table polling behavior can be honestly claimed beyond this notification mechanism.

Manages notifications for Brocade/Extreme Networks UniDirectional Link Detection (UDLD) protocol, which detects one-way link failures on switched ports.