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Healthy bandwidth utilization

vincehgov
Beginner
Beginner

Is there a bandwidth utilization percentage that is considered "healthy?"  We run our WAN link at 99% utilization.  The QoS should be doing its job and dropping less critical packets.

Vince

5 Replies 5

paolo bevilacqua
Hall of Fame Master Hall of Fame Master
Hall of Fame Master

99 or even 100 is fine, if you can accept network slowness.

Joseph W. Doherty
Hall of Fame Master Hall of Fame Master
Hall of Fame Master

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Really depends on the nature of the traffic.  Bulk data transfers that are transferred fast enough to finish within a time window are generally fine running a link at 100%.  Latency sensitive traffic, might require as little as about 1/3 utilization (not counting QoS de-prioritized latency insensitive traffic utilization).

Thanks guys.  I was just curious if it was something like CPU where you want to keep it less than 80% to protect the hardware. I was worried there was a risk of the port melting.

vince

remember, its full duplex so you have the same capacity send as you do receive.

No, there is no such risk. These are routers not combustion engines.

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