> In practice I don't think this will give you a lot performance-wise. The
> most of the world is at 1500 bytes so the MTU in use at most of the time
> would probably be 1500.
>
> This could work in a scenario where you are doing large transaction
> where window scaling max out to 9000 bytes.
>
In fact, it's performance inside the vlan I'm seeking, not performance to
the outside. To the outside, I'll be at 1500.
>> But we have some other vlan that needs to stay at 1500. If I specify in
>> the
>> ifconfig command the MTU, will this work as I expected ?
>
> yes
>
>> Also, is there a way to specify de MTU in the ifcfg-vlanxxx file in
>> sysconfig/network-scripts ?
>
> at least in Fedora, yes :)
I tried adding MTU=nnn in ifcfg-vlan5 for exemple, and it didn't do what I
want. I add to add
if [ -n "${MTU}" ]; then
ip link set ${DEVICE} mtu ${MTU}
fi
to /etc/sysconfig/network-scripts/ifup-vlan, before the ifconfig and it
worked.
Thanks,
