Re: [nsp] 5 minute output rate 84000 bits/sec, 81 packets/sec

From: Gert Doering (
Date: Fri Oct 05 2001 - 10:17:20 EDT


On Fri, Oct 05, 2001 at 02:29:36PM +0530, pankaj wrote:
> ( two lines from output of command show int serial0/1 )
> 5 minute input rate 0 bits/sec, 0 packets/sec
> 5 minute output rate 84000 bits/sec, 81 packets/sec
> What does it exactly mean . Is it per second data transfer or is it average
> of data transfer for 5minutes.

It's the per-second data transfer, averaged over the last 5 minutes.

(It could be "the data transferred over the last 5 minutes divided by
300 seconds", but Cisco uses some kind of exponential decay algorithm
that is less CPU and storage (!) intensive than doing the math in the
straightforward way).

> If it is average of 5min than is there any way to get exactly per second
> data transfer on serial port

There is no such thing as "instant per second data transfer" (because
that will be "if a packet is transferred right now, the rate is linespeed,
if no packet is transferred, the rate is 0", so you have to average).

You can set the rate down to "average over 30 seconds", the command
is "load-interval 30" (in the interface configuration).


Gert Doering
Mobile communications ... right now writing from *Prague*
... mobile phone: +49 177 2160221 ... or mail me:

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