Larger MTU is associated with reduced overhead. In many cases, MTU is dependent on underlying network capabilities and must be adjusted manually or automatically so as not to exceed these capabilities. In computer networking, the maximum transmission unit (MTU) is the size of the largest protocol data unit (PDU) that can be communicated in a single network layer transaction. MTU packet size that comes by default in any Windows installation may not be the best size. This is Ethernet in my case and its value is 1500 (see below screenshot). I will test if this is a good value. If the MTU size is optimum, then it can significantly advance the overall performance of the network and higher speeds can be reached when the length of packets in a stream is equal to the value of MTU. The MTU value. This post will give you a basic understanding of MTU and Jumbo Frame and provide an easy way to determine the optimal MTU value of a remote party, allowing you to set yours appropriately when necessary or simply for fun.
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