Question about Bandwidth Monitor

This might be a stupid question but here it is. Bandwidth monitor shows utilization in out% and in%. Does that mean that to calculate the total utilization of your line you add the 2 so that if in% and out% were both 25% that would mean your line utilization is at 50% ?

I assume that to be true but I see in Bandwidth monitor many times in which in% and out% are 100% or past and that is with the bandwidth settings correct.

Any help would be appreciated..

Thanks,
Donnie

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Network_Guru

It all depends on what kind of circuit you are monitoring.
It it is a half duplex circuit, then you are correct in your calculations.
If it is capable of full duplex, then there are 2 ways of calculating this.
If you are a Network Sales person you would just double the half duplex bandwidth;
i.e. tell your customers their 100mbps FDX switch port is actually a 200Mbps port
(in fact certain switches use this figure when you discover the port with SNMP).

In real world terms you would add the in & out percentages and divide by two for a full
duplex circuit. The percentages shown by NPM are for one direction only assuming the
bandwidth statement applies to each direction (you can adjust these for asynchronous circuits).

-=Cheers=-
NG