Why I'm seeing a 60KB frame? Does it violate 1,500 MTU rule?

johnifanx98

I use wireshark to analyze the raw network packets captured. I see certain frames carry big TCP packets as big as 60KB, and thus those frames are bigger than 60KB. I remember MTU on ethernet layer is 1500B. Is this expected? In the same file, it looks like frames carrying UDP packets usually are smaller than 1500B.

Daniel333

Can you post your out and a diagram of where you are going this? Such as on a switch? hub?

johnifanx98

here is a screen capture of such a frame carrying big TCP packet.