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Why is the fingbox performance monitoring giving bad results when connected to a switch


Dear all, when I connect my fingbox to a switch which is connected to the router and I do a performance measurement then, it gives me around 1/3 of the speed it should be. (30Mbps instead of the 90Mbps I have according to other measurements) When I directly connect it to the router, it does give me the proper results. Is the Fingbox not compatible with a switch? Please note: A PC that is connected to the switch does yield the expected results when using MLAB
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Best Answer
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BK303 Member Posts: 13
When everything is working properly, all Ethernet devices are compatible with each other and built to industry standards, and I have never seen compatibility issues with wired Ethernet unless the switch port was defective. The Ethernet switch may be poor quality and cause low data throughput. This may occur if you have turned on port mirroring or other L2 features on the switch (if the switch has web management features), or if the switch is having lots of ethernet layer transmission errors due to bad power or faulty cables. I would first try to connect your computer or laptop directly to the switch with Ethernet cable and see if the Internet speed performance measurement from a browser is also worse for your computer when connected to the switch. You can check the Fingbox's Ethernet connection speed mode (10Mbps, 100Mbps, or 1Gpbs) on the phone app for Fingbox by selecting your Fingbox network, click gear icon (upper-right), then you should see Fingbox software version and MAC displayed....scroll down to Info and find Link Speed. If the connection is not the maximum speed your switch supports, try using a different Ethernet cable or different port on the switch.5
Answers
Perhaps Lee_Bo's comment provides a hint as to why this feature could degrade performance, if the EEE feature was accidentally causing the link to down speed to 10Mpbs or just a some bad implementation on either the switch or Fingbox side causing long delays as the link went into and out of idle. I sometimes do turn on that EEE feature on my own switches, so I'll have to watch out that it doesn't cause throughput issues when I enable it.....learn something new everyday!