MTU is the maximum packet size for data transmission.
Think of it this way, you have a table to seats 1400 people, but you have 1500 people to sit, you will need to break up the group (fragment) and have two sittings.
now you have a table to seats 9100 people, but you have 1500 people to sit, they will all sit comfoertable at the table with no issues.
Nice easy way to think of it. I had not had an explanation as good as that.
yeah, it bugged me, that we were testing something (see other thread) with MTU, set to 9192, tests didn't work, so they wanted to roll back, I'm like why? there is no reason to. dso I had to come up with a way to dumb it down for the server guy as why we don't have to rollback.
Annoying (and challenging) when that happens
Yes, I hate it when server people ask me to do stuff. :D