This read-only Counter tracks how many times the switch's internal NAM receive path became congested. Since no description is provided, an admin should treat a rising count as a general sign of internal receive-side congestion on the switch, worth correlating with overall traffic load or other error counters when diagnosing performance problems. For example, if kxadminNAMReceiveCongests climbs sharply during a period of heavy broadcast traffic, the admin would suspect the switch's internal receive processing is being overwhelmed and look at reducing broadcast load.