 of reported 
                    interface speed.<br>
                    -w, --warning=input,output[,error in,error out,discard in,discard 
                    out]<br>
                    warning level for input / output bandwidth (0 for no warning)<br>
                    unit depends on B,M,G,u options<br>
                    warning for error &amp; discard input / output in error/min 
                    (need -q)<br>
                    -c, --critical=input,output[,error in,error out,discard 