[Olsr-dev] rifs->int_mtu and /sys/class/net/wlan0/mtu have different values

[Henning Rogge]

On 06/05/2012 11:25 PM, Hans-Christoph Steiner wrote:
>
> I'm just in the process of adding the wifi information to the jsoninfo
> plugin and I noticed something odd on my wlan0:
>
> rifs->int_mtu in olsrd is 1472
>
> /sys/class/net/wlan0/mtu is 1500

1500 bytes (MTU) - 20 bytes (IPv4) - 8 bytes (UDP) = 1472 bytes

Its an estimate how large OLSR packets are allowed to grow.

Henning Rogge


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Diplom-Informatiker Henning Rogge , Fraunhofer-Institut für
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