![]() You wouldn't adjust the modems MTU anyway, you'd adjust the switch. The users are not doing heavy-duty Internet stuff.īut they have a gig connection, I can only assume because of a deal, not necessity given you just said they hardly use it. They don't use any web applications for anything. Even the president of the company and his response is - we're paying for this speed, but we're getting this speed. Most traffic is internal, but we have these users that run speed tests then complain. Looking inside their modem, they don't even have an option to adjust the MTU. The users are not doing heavy-duty Internet stuff. Usually, they are accessing documents from a server but also looking up information on the web. I think my smaller TL-SG1024DE switch seems to have such options although I don't use them currently.Ĭomputers are 50/50 with LAN and Internet. I think it allows to configure logging too for deeper analysis. ![]() That is one of the options Craig mentioned. But I would expect it to display its traffic monitor which should also provide some info of ongoing communication you have at the same time with Internet via that switch. If your traffic is dominated by Internet, then it makes sense to configure all your devices to this limit in order to prevent segmentation and reassembling of traffic.Īnything I should be looking at in the switch itself? MTU configuration internally to the MTU limit of your ISP?ĭepending on your dominating traffic, you may want to configure your LAN to optimize for internal traffic or for Internet traffic. ![]() If your traffic is mainly internally, why would you want to limit your.If your main traffic is internally, why do you care so much about your Internet configuration?.Which limitations does your ISP impose on MTU?.Do your computers communicate mainly internally on your local network or do the communicate mainly with services on Internet?.And I didn't understand how you performed that check.Īnd as you have checked the mode, you may check also the MTU. That's the reason why Craig asked you to check the negotiated modes instead of just the capabilities. (There was only one device at that time limited to fast ethernet.) Your CAT6 cable doesn't change the configuration of your computers, your switch nor your router. After activating gigabit mode on that router, it negotiated GbE with all devices supporting it. When I used an ISP provided router with builtin gigabit switch, I detected that it used fast ethernet by default and that gigabit mode was disabled by default. Sorry, didn't get how you checked each network segment had indeed negotiated GbE between computer and switch, between switch and router when doing an Internet connection of your computer into Internet. Never anything like in the 90% range where the switch is getting overworked.Īre you sure the connection between the router and the switch and the switch and the computer is gigabit? Not what it's capable of but that the ports are actually connecting at gigabit speed?Īll gigabit speeds: From ATT modem to router. I'll monitor the memory and CPU on the switch (but looking at it previously, even during business hours when workers are working away - it's pretty minimal. ![]() I'll test more next weekend when I go to the client's office. One network - which is the default VLAN1 in the switch. You're not connecting multiple LANs from the router to the switch are you, just a single LAN? The switch isnt using a different MTU from the other devices is it? If they dont, check for things like flow control being enabled. If they get gig between each other, I'd say it's the link to the switch from the router. When you next test it (though speed test isn't always a good indication of speed), check your CPU and memory usage on the switch.Īlso test two connected devices through the switch, LAN based. Is the speed the same on the default VLAN 1? Is this a flat network or does it contain VLANs? It does look like something on the switch is only connecting at 100Mbps.
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