Ethernet what is mtu

A larger MTU brings greater efficiency because each packet carries more user-data, protocol overheads, such as headers or underlying per-packet delays, remain fixed, the resulting higher efficiency means a slight improvement in bulk protocol throughput.

A larger MTU also means processing of fewer packets for the same amount of data. In some systems, per-packet-processing can be a critical performance limitiation. By using the Ping utility from the command line you can establish the largest MTU size that can be used before packets begin to be lost. You are correct. Another possible explanation is that the 8 extra bytes are for the Ethernet preamble. Technically, this might not be correct since the question mentions a 'frame', which would not include the preamble.

I do not remember which explanation I assumed, the number was taken from the original question, and is regularly mentioned as the "maximum ethernet frame size". Ah, that is clearer. I have to admit that I am more familiar with seeing maximum frame sizes of and discussed, and have not seen used that often. So does Google, but it is indeed not very common Rey Rey 1.

Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Does ES6 make JavaScript frameworks obsolete? Sending the same data with 9k jumbo frames, only 14, frames need to be generated, with the reduction in header bytes freeing up 4 Mbps of bandwidth. These savings in CPU cycles and bandwidth can produce some significant increases in network performance.

Figure 2 - Jumbo Frames. TCP MSS, the maximum segment size, is a parameter of the options field of the TCP header that specifies the largest amount of data, specified in bytes, that a computer or communications device can receive in a single TCP segment. Each side says:. Accessed 9 Oct. Accessed 10 Oct. Check your inbox and click the link to complete signin.

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