Subject: Re: softmac mtu

From: Larry Finger <[email-masked]>
Date: Sat, 23 Sep 2006 16:40:15 -0500

Matthieu CASTET wrote:
> Hi,
> 
> why softmac (and maybe device using linux 80211 stack) can't increase
> their mtu above 1500 ?
> 
> IRRC 802.11 allow to send bigger frame. Moreover some driver like airo
> allow to use mtu biger than 2000.

The maximum value for MTU is set in include/linux/if_ether.h for all ethernet-type communications, 
not in softmac or ieee80211. I doubt that one could easily change the number. It may be that the 
802.11 standard allows bigger frames, but it looks to me as if Linux does not.

Larry