I was working on a project which includes developing an application using java sockets. However while reading some fundamentals and newly upcoming IPv6 paradigm which motivated me to ask below question,
What are the benefits of removing fragmentation from IPv6?
It would be helpful if someone can give me understanding about why?
I have researched on internet but haven't found any useful description.
IPv4 has a guaranteed minimum MTU of 576 bytes, IPv6 is 1,5001,280 bytes, and recommendation is 1,500 bytes, the difference is basically performance. As most end-user LAN segments are 1,500 bytes it reduces network infrastructure overhead for storing state due to additional fragmentation from what are effectively legacy networks that require smaller sizes.
For UDP there is no definition in IPv4 standards about reconstruction of fragmented packets which means every platform can handle it differently. IPv6 asserts that the fragmentation and assembly will always occur in the IP stack and fragments will not be presented to applications.