peterledwidge Wed, 05/02/2007 - 07:02
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config t

int serial x

load-interval 30

Default is 300 seconds or 5 mins

Using show int serial x you should be able to see load on the interface at 30 second intevals.

Check load i.e 255/255 is using 100% 125/255 is 50% utilization.


A tool you could look at using is mrtg - see

The load interval option sould be quickest for you.


darkbeatz Wed, 05/02/2007 - 07:19
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thanks for the reply. i was hoping to see if I could see what sort of traffic is actually passing through or at least what protocols are chewing up the bandwidth

yjdabear Wed, 05/02/2007 - 07:48
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If supported by your gateway software and hardware, you can enable NetFlow cache ("ip route-cache flow") on ther serial interface, with or without exporting it to a NetFlow collector:

This will let you get a quick snapshot of the through traffic with "show ip cache flow" on the gateway, or a longer term view on the NetFlow collector/reporting tool.

darkbeatz Wed, 05/02/2007 - 08:04
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thats the command I was looking for! thanks a mill


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