Sometimes my snmp monitorings gets strange value from ifHCOutOctets of 10Gbps ports (it happens randomly).
Such value makes calculation of bps on port like through port gone away 150Gbps..
Calculation of bps (time between checks - 60s): evaluate value as (value-prev_value)/(time-prev_time), where
value - current value
value_prev - previously received value
time - current timestamp
prev_time - timestamp of previous value
Value after calculation always ~150Gbps (it looks like counter's value was increased onto very big and unreal number).
Switch: WS-C2960S-48TD-L with 15.2(1)E IOS (previous 15.0.2-SE5 had the same behaviour).
Is it known and resolved problem? I had try to find info about such problem, but without results.