But as shown above, it has nothing to do with the size of files being sent in a single session. Most consumer routers come with an MTU size of 1472 to account for the 28 bytes of overhead = 1500 MTU to avoid fragmentation. The only problem that could increase overhead is if your MTU size is set too small on your router, switch, or NIC which causes the packet to be fragmented into multiple smaller parts which does increase overhead due to reduced transmission efficiency. The problem is that I noticed my speed didnt change at all and when I asked my sisters husband at the other room connected to the modem says he got 200+mbps currently. Overhead would not be any different because you are still sending a bunch of 1500 byte packets during a single session. We have a 100mbps plan and our ISP just upgraded our plan today to 300mbps. And since you can verify checksums very quickly on smaller files, if a single file is corrupt (as is often the case over Internet connections with high packet loss) then you can send that one file again rather than the entire series of files. On the other hand, if there are 10,0000 1MB files, once the initial network session is established you don’t need to reestablish a new session after each file has been transferred so there is no increase of overhead. The problem is if you just send one big 10Gb file and the checksum fails (the file is corrupt) then you have to resend the ENTIRE 10Gb file from scratch. The session starts with a SYN and sends ACKs after each packet is received (up to your maximum supported MTU size in this case ~1500 bytes) until the 10Gb is completed and sends a FIN at which point the application understands the entire file has been transferred and does a Checksum to ensure that the file isn’t corrupted. In your example, again assuming that TCP is in use, the network doesn’t wait until the entire 10Gb file is set to verify receipt. Whether a file is sent as one big file or a bunch of little files it is still sent as a series of ~1500 byte packets during a single TCP session (assuming FTP or some other connection oriented protocol). than 100Mbps in the uplink direction (and assuming your internet connection. I've disabled all the powersave/green settings, made sure it's auto-negotiating, checked the other settings, upgraded the driver, but no change. One of the PCs at my office has never been able to get above 100 Mbps with the integrated Ethernet NIC, even though it's a gigabit NIC. With all due respect, what you wrote is incorrect. Its like the nest is throttling every device in my network for some reason. General Networking Gaming General Hardware.
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