Monitoring a VLAN

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Apr 23rd, 2009
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At present I use OP Manager to monitor my LAN. Sadly at present we have a very flat LAN in a single VLAN. I am looking at splitting up the LAN into multiple VLANs. I can easily route between the VLANs this has been tested. What I would like to do is to benchmark the current VLAN utilisation for broadcasts, multicasts, etc... start to migrate servers to the new VLANs and then benchmark again once I have finished. I can't really do this with OP Manager. Does anyone have any experience of using other tools to capture and model this data.



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ropethic Mon, 04/27/2009 - 15:31
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If you able to set up a span session, then make the source port the entire vlan.

For tools I would recommend Wireshark (ethereal) protocol analyzer. It is a free protocol analyzer you can use to monitor your traffic within the vlan.


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