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Searching for bottlenecks

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There is a bottleneck somewhere on my network of five servers and 70 PCs. Can someone recommend a good utility for tracking down this major annoyance? It's killing my mail and sql servers.

Thanks!
Klingon

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by robertbrittonjr

WhatsUp Gold from IpSwitch.

It's got a 30 day free download.

It may help track some of the areas you are experiencing bottlenecks on. It is not a network sniffer however.

It's been my experience that the appearance of network bottlenecks is often due to poorly tuned servers.

Also, a good switch like a cisco 2924xl can not only help you boost network performance, but the SNMP info and port monitoring features of the built-in www server can help you identify which segment of your network is causing the most traffic. That way, you can use those metrics from the switch to reconfigure your network by making a VLAN and isolating traffic.

by robin

Optimal Application Expert is pretty good at determining whether it's the network or the application.

The quick and dirty solution for finding a potential network bottleneck could be to do a few traceroutes and look for the long / missing ping.

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