Cheat Code
ping http://www.google.com -f -l 1472
So we have issue with network connectivity that intermittently experiencing slowness (God, no one love slow network!). After checking around we found that likely it’s due to MTU settings not optimized.
First is we need to check what’s the MTU set by our router (usually it’s 1500 btw). So use the cheat code above!
Oh don’t forget to minus a magic number 28 (28 bytes is IP and ICMP header size).
You don’t want to get message “Packet needs to be fragmented but DF set.” which means your MTU is too big!
What you want to find is largest number (+28 don’t forget) that the server is responding.
My IT Cheat Code 