check the current Interface bandwidth utilization ?

[mohammed hashim]

hi,

how to check the interface utilization currently on an interface?

let us say the interface is 1Gig, I want to see how much it is consumed currently !?

[Seb Rupik]

Run 'sh int <interface_name>' and check the line specifying tx/rxload, eg:

reliability 255/255, txload 2/255, rxload 5/255

txload and rxload show the fraction of bandwidth using a scale 1-255 for the traffic flowing in and out of the interface. The formula used is:

(rate / configured interface bandwidth) * 255

cheers,

Seb.

[Joseph W. Doherty]

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Posting

Just to add to Seb's post, default measurement is across 5 minutes, but this can be changed.  Minimum measurement period is usually 30 seconds.