CISCO-UNIFIED-COMPUTING-ETHER-MIB

Description: MIB for Ethernet interface statistics and port management on Cisco UCS, covering internal and external port channels, error/pause/loss counters, FCoE interface stats, and transceiver types

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CISCO-UNIFIED-COMPUTING-ETHER-MIB is part of Cisco's Unified Computing System (UCS) management MIB family, providing Ethernet interface statistics and port management for UCS fabric interconnects and blade/rack server network adapters, including internal and external port channels and FCoE interfaces. It exposes performance and fault-related counters such as alignment errors, deferred transmissions, pause frames, and loss counters, each tracked with delta, average, minimum, and maximum values, alongside transceiver-type identification. Its core monitoring value is detecting degrading Ethernet/FCoE link quality and hardware-level network issues within a UCS domain: rising error-delta counters on a port can reveal a failing cable, transceiver, or NIC before it causes packet loss or converged-storage traffic disruption. Reflecting UCS's model-driven management architecture, each object is tied to a managed-object distinguished name (Dn) and relative name (Rn), showing dependency on Cisco's broader UCS data-model/MIB structure. It is typically deployed on Cisco UCS fabric interconnects and blade-server chassis in converged data-center environments running Ethernet and FCoE traffic. Engineers can download the CISCO-UNIFIED-COMPUTING-ETHER-MIB file directly to load it into their MIB browser.

An admin would poll cucsEtherErrStatsTable/cucsEtherErrStatsEntry, identified by cucsEtherErrStatsDn/Rn, to check cucsEtherErrStatsAlign and its cucsEtherErrStatsAlignDelta/DeltaAvg/DeltaMax over successive polls. A steadily climbing cucsEtherErrStatsAlignDeltaMax on a fabric interconnect uplink port suggests a failing transceiver or cabling issue. Similarly, a rising cucsEtherErrStatsDeferredTx/DeferredTxDelta indicates the port is experiencing congestion or duplex mismatch, both of which warrant physical-layer investigation before they impact FCoE or Ethernet throughput.