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Re: [libvirt] [PATCH] bridge: set MTU of tap iface to the same value of the bridge



On Tue, Dec 02, 2008 at 07:08:37PM -0200, Eduardo Habkost wrote:
> Hi,
> 
> This is a follow-up to the RFC patch sent by Chris Wright, at:
> https://www.redhat.com/archives/libvir-list/2008-November/msg00225.html
> 
> With this patch, instead of hardcoding the MTU to an high value, we set
> the MTU of the tap interface to the same MTU value set on the bridge
> interface. The current code uses the default tap MTU value and lowers
> the bridge interface MTU without any need, killing performance.

ACK, this looks like a reasonable approach to - the initial physical NIC
attached to the bridge will set the preferred MTU, so we're just following
that now.

Daniel
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