Hi,

It's a hold-over from what wifi will let you get away with. Just stick
to 1500 and let the 802.11n A-MPDU aggregate things as appropriate.


-a

On 24 February 2014 00:56, Michael BlackHeart <amdm...@gmail.com> wrote:
>
>
>
> 2014-02-24 10:35 GMT+04:00 Adrian Chadd <adr...@freebsd.org>:
>
>> Hi
>>
>> all you need is:
>>
>> interface=wlan0
>> driver=bsd
>> ssid=CACHEBOY_11N_1
>> wpa=3
>> wpa_key_mgmt=WPA-PSK
>> wpa_passphrase=PasswordGoesHere
>> wpa_pairwise=CCMP
>> ctrl_interface=/var/run/hostapd
>>
>>
>> I haven't tried running the wifi with an mtu greater than the default
>> (1500). Why are you trying to do this?
>>
>
> As far I understand MTU 2290 is native to wireless/ath/freebsd driver.
>
> Look at this
> ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 2290
> ether cc:b2:55:00:68:1f
> media: IEEE 802.11 Wireless Ethernet autoselect mode 11ng <hostap>
> status: running
>
> But when freebsd creates wlan0 it's lowered to 1500. I tried with another
> ath WiFi card this way - worked fine with 2290 MTU in a bridge. BTW 2290 is
> max value, but it seems than noone looked into wifi MTU under freebsd,
> theoretically it could be about 7k to 9k - normal jumbo frame. 2290 is some
> kinda way of baby jumbo frames - they're slightly bigger than 1.5k.
>
> So next is the bridge. By default bridge uses the MTU of a first member, so
> if it will be a stock ethernet i-face so it'll be again 1500.
>
> If you're asking me why am I to use increased MTU - I see it reasonable.
>
>>
>> you also don't need to say ht, it'll automatically do ht for you.
>>
>> -a
>
>
>
>
> --
> amd_miek
> Think different.
> Just superior.
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