link utilization can be checked or verified by show interface port no e. g gi0/2
the command output will be
30 minute input rate 8302000 bits/sec,
30 minute output rate17460000bits/sec,
output rate/BW actual *100=utilization
BW actual means the policy bandwidth
if there is any caping done
i. e if there is caping of 500MBPS on 1G Link, then actual Bw will be 500Mbps
so 17.46 MBPS /500MBPS =LINK UTILIZATION.
IF there is no policy implementation then 1G will be actual BW
then 17.46 MBPS /1G*100)=utilization
if link is over utilised or in maximum threshold state, links depending on same router may challenge packet loss
