[Cerowrt-devel] MTU question

Dave Taht dave.taht at gmail.com
Thu Feb 12 17:23:20 EST 2015

The max mtu for wifi is somewhere around 2300 bytes. So there is not a
lot of benefit, and all kinds of headaches for other devices. I don't
remember the max mtu for the ag71xx but I think it was 1514+vlan
header only...

No point. The only case where I can think it is useful is when you are
tunnelling some protocol over another protocol on a wifi p2p link and
don't want to mess with the underlying mtu. That was the use case for
it when I tried to deploy ipv4 over ipv6 with the nat work being done
on the edgepoints a few years back.

On Thu, Feb 12, 2015 at 1:46 PM, David Lang <david at lang.hm> wrote:
> It occured to me as I was driving home last night that if the APs are
> working to combine packets into a single transmission due to the high
> overhead of independent transmissions, would it possibly improve wifi
> performance to just configure a larger MTU?
> Has anyone done any experimentation in this area?
> David Lang
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Dave Täht


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