ethIfInHighSpeed 1.3.6.1.4.1.2928.2.2.1.3.2.1.20

An estimate of the interface's current input bandwidth in units of 1,000,000 bits per second. If this object reports a value of `n' then the speed of the interface is somewhere in the range of `n-500,000' to `n+499,999'. For interfaces which do not vary in bandwidth or for those where no accurate estimation can be made, this object should contain the nominal bandwidth.