Problem:
How do I test ESXi to see if I am having jumbo frames issues?
Solution:
Run the below command to see if you can ping packets with 9000 MTU:
vmkping -d -s 8972 192.168.0.45
Run the below command to ping from a vmkernel port to see if you can ping packets of 1500 MTU:
vmkping -I vmk3 192.168.0.45 -d -s 1472
You can add a -c to set the number of packets to ping:
vmkping -I vmk3 192.168.0.45 -d -s 1472 -c 1000
