Manual MTU, does it help with Gaming?

[CarpeNoctem]

Hey all.

Something I've always wondered, and hopefully someone could help me understand.

Currently, I switched the Auto setting on the MTU box to 1492, because in the back of my head I seem to remember gaming sessions being more responsive if I decreased the MTU.

I have zero empirical proof (might have been placebo effect) so I'd love some enlightenment on the issue.

Thanks in advance.

[pbix]

The MTU is the maximum size of a data packet your router will transmit. I packet comes in from your LAN which is larger then your router breaks it into two smaller frames and sends them.

Setting your MTU down on your router can only make "responsiveness" stay the same or go down. Because it always takes more time to send multiple smaller frames than one large one.

If your game sends a 1000 byte packet and you set the MTU from 1400 to 900 bytes your router must then sent two packets which takes longer than just sending the one large one.

Users unfamiliar with MTU should leave the setting as Auto because your router is probably smarter than you are about it

[CarpeNoctem]

Users unfamiliar with MTU should leave the setting as Auto because your router is probably smarter than you are about it

Hahaha Thanks Pbix, extremely well said.

[tapper]

found some info for you here.

How to find the proper MTU size
http://www.tp-link.us/article/?faqid=190

pleas note this bit:
Take the maximum packet size from the ping test and add 28. You add 28 bytes because 20 bytes are reserved for the IP header and 8 bytes must be allocated
for the ICMP Echo Request header. Remember: You must add 28 to your results from the ping test!

An example:
1440 Max packet size from Ping Test
+ 28 IP and ICMP headers
1468 is your optimum MTU Setting

more hereto.
http://www.sevenforums.com/tutorials/94 ... limit.html

Wen i tested my win 10 computer i got a MTU of 1464 +28 =1492

[CarpeNoctem]

found some info for you here.

How to find the proper MTU size
http://www.tp-link.us/article/?faqid=190

pleas note this bit:
Take the maximum packet size from the ping test and add 28. You add 28 bytes because 20 bytes are reserved for the IP header and 8 bytes must be allocated
for the ICMP Echo Request header. Remember: You must add 28 to your results from the ping test!

An example:
1440 Max packet size from Ping Test
+ 28 IP and ICMP headers
1468 is your optimum MTU Setting

more hereto.
http://www.sevenforums.com/tutorials/94 ... limit.html

Wen i tested my win 10 computer i got a MTU of 1464 +28 =1492

Awesome resource, thanks Tapper!!

[tapper]

To see what your MTU is without using the commandline see here:
http://www.speedguide.net/analyzer.php

To answer your question I dont no lol after all the links and playing about with settings!