Use the command below to test jumbo frames:
Windows:
ping {ip_address} -f -l 8972
-l 8972 value is actually equal to 9000
9000 – 20 (20 byte IP header) – 8 (ICMP header) = 8972
Remember the source like Windows is set to 1500 MTU by default so you’ll get “Packet needs to be fragmented but DF set.” responses.
It’s best to run these commands with devices that are set for Jumbo Frames.
The path end to end needs to have Jumbo Frames enabled.