I don’t think you can read individual core usage at this point, if you use SNMP Object Navigator and drilldown .1.3.6.1.4.1.9.9.109.1 etc then you won’t see any OID for each core , this means at present Cisco has not included or implemented the OIDs ...
I found the issue ... here is how i fixed it
1) Our link to WAN is 100Mbps.
2) But user ports are configured with 1000Mbps
3) Inter switch links (access to core) are also 1000Mbps ,
users shared drive is in our Data center (remote site) , when they...
I think too much traffic going through these interfaces as they are 10 and 100.
try to find the source of the traffic (port may set to 1000) and restric them to use 10 or 100 when they are entering into the network , that way i think you will resolve...
Same problem with our switch , WS-C3850-48T S/W 03.06.04.E
Its a standalone (no stack), see number of errors 638604
xxxxx#sh int gi1/0/48 counters errors Port Align-Err FCS-Err Xmit-Err Rcv-Err UnderSize OutDiscard...
