4402 controller high LAN utilization(600 Mbps)

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Aug 12th, 2010
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Hi everybody,

I'm trying to configure Cisco 4402 series wireless lan controller on a proof of concept lab, but it's generating extremely high LAN utilization (around 600-700 Mbps) on its connected port to backbone switch. We are using GLC-T on 4402's port 0 for local connectivity. This traffic is starting even we do not use any access points in wireless network.

I configured controller 2 times after resetting to factory default, but the result is the same.

Best Regards

Ozan Oguz


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Stephen Rodriguez Thu, 08/12/2010 - 08:41
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     What is the config on the connected switchports?  In genearl you want to prune the non-used VLAN from the trunk.

Ozan Oguz Tue, 08/24/2010 - 05:39
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problem has been solved by adding "switchport trunk allowed vlan x,y,z" command to the backbone switch.


George Stefanick Wed, 08/25/2010 - 16:25
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So why the high utilization then? I understand you didnt have the vlans added to the switch .. but what caused the massive traffic load?


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