ALR0684E The Port Congestion Index of port port_name in device device_name was found to be measured_value Counts, which violated the defined critical-stress boundary value of boundary_value Counts.
Explanation
Port Congestion Index estimates the degree to which frame transmission was delayed due to a lack of buffer credits. This value is generally between 0 (no congestion) to 100, but can exceed 100 if buffer credit exhaustion persisted for an extended amount of time. A threshold is defined on this metric, which can be used to compare the value of Port Congestion Index with the defined boundaries for each set of performance statistics collected from the storage system or switch.
A threshold boundary violation occurred. The specified port in the storage system or switch has a Port Congestion Index value that is greater than or equal to the critical-stress boundary that was defined for the related threshold.
The threshold violation may indicate that a hardware or configuration problem exists either for this port or for the connected fabric. Isolated errors can generally be ignored, but if the rate remains consistently high, the errors may be a cause for concern.
Action
Contact your resource vendor for troubleshooting guidelines for the switch, and for the connected entity (storage system, switch, or server HBA).
Because isolated temporary errors can generally be ignored, consider enabling the alert suppression option "Suppress alerts unless the triggering condition has been violated continuously for a specified length of time" for this threshold. This can reduce the number of unnecessary alerts.