Monitor Vlan Bandwidth/ Usage

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Aug 29th, 2007
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We use catalyst 6500's and 3500's. I am taking over control of this network and want to know if there are users that should be moved to a different vlans. I am mainly concerned with broadcast domains and overall bandwidth.


Todd Kroeker

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David Stanford Wed, 08/29/2007 - 19:09
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Do you have a NAM in the 6500 that you could use for monitoring traffic?

avmabe Thu, 08/30/2007 - 16:29
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Me personally, I would install cacti ( and then graph every single interface/port.

Then go from there.

JORGE RODRIGUEZ Thu, 08/30/2007 - 20:41
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Todd, you may also try PRTG traffic grapher,

they provide up to three free sensors in

their software whereby you can monitor real time traffic on a physical interface. For more than three interfaces then you have to purchase software.




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