CISCO-UNIFIED-COMPUTING-FLOWCTRL-MIB

Description: Defines Ethernet flow control and priority pause policies applied to Cisco UCS fabric interconnect ports via service profile definitions

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CISCO-UNIFIED-COMPUTING-FLOWCTRL-MIB is a Cisco UCS MIB modeling Ethernet flow control and priority-based pause policies applied to fabric interconnect ports through UCS service profiles. It exposes flow-control policy definitions (definition tables) and individual policy items that determine how a port responds to congestion signals from attached devices. This is primarily a configuration/policy monitoring MIB rather than a live counter MIB: it lets an operator confirm which flow-control policy (e.g., priority flow control settings) is applied to which port role, which is important for diagnosing network-level congestion or drops on converged Ethernet links carrying both LAN and storage (FCoE) traffic. It relies on the common Cisco UCS object-model conventions (Dn, Rn, instance ID, policy level/owner) shared across the CISCO-UNIFIED-COMPUTING-* family. It is deployed in Cisco UCS domains where fabric interconnects handle converged network and storage traffic and administrators need consistent flow-control behavior across server-facing ports, which is where CISCO-UNIFIED-COMPUTING-FLOWCTRL-MIB SNMP monitoring confirms policy assignments stay correct after service-profile changes.

An operator investigating dropped frames on a converged link would poll cucsFlowctrlDefinitionTable/cucsFlowctrlDefinitionEntry to read cucsFlowctrlDefinitionDescr and cucsFlowctrlDefinitionName, confirming which flow-control policy is assigned, then check cucsFlowctrlItemTable/cucsFlowctrlItemEntry for the specific pause/priority settings applied. cucsFlowctrlDefinitionPolicyOwner indicates whether the policy is locally defined or inherited, which helps explain unexpected settings after a service-profile change. This MIB reflects policy configuration rather than real-time pause-frame counters.

Manages flow control and priority pause configuration for Cisco Unified Computing System network interfaces.