Remember that we should consider TCP windowing when we look at the results of any speed test done in this way and TCP secment sizes can be seen using Wireshark, should we need to drill down to that level of detail.Īnd there is a really handy app for iPerf as well. Good selection of options to choose from too including packet size which has a much bigger effect than many realise. I would expect that enterprise class of switches (including those of Cisco) have such builtin options.Īnother vote for iPerf. So I don't know if yours are equipped with builtin options to measure speed, throughput or latency on its ports. So how would this help you to troubleshoot your Internet connection?.But still this has little to do with your Internet speed. That's why Patricks proposal seems better suited for measuring your LAN connection. The larger these files are, the closer comes the speed of file transfer to LAN connection speed, especially if your storage is faster than your LAN connection. But such a test will give you the speed of the file transfers which is probably lower than the speed of the LAN connection, especially if these files are small. Or do you have some gateway, firewall, modem or Internet access router inbetween?Īdam-BCH wrote:Can I do a file copy test with a log to then calculate the speed?.Are your Cisco switches directly connected to the Internet?.This may have side effects on your LAN though.Īdam-BCH wrote:We have Cisco switches but I am not a Cisco tech. And you may even have options to make these independant in order to prevent your LAN from disturbing your Internet access measurements. Probably your Internet access device has capabilities to provide such measurements and logging.
And if your ISP doesn't provide the service contracted, you'll probably need to monitor your Internet access and measure it. I can't see a direct relation, only some indirect one.