Re: [PATCH 0/2] net: Set maximum receive packet size on veth interfaces

From: David Miller
Date: Tue May 09 2017 - 13:48:53 EST


From: Fredrik Markstrom <fredrik.markstrom@xxxxxxxxx>
Date: Tue, 9 May 2017 14:44:36 +0200

> Currently veth drops all packets larger then the mtu set on the
> receiving end of the pair. This is inconsistent with most hardware
> ethernet drivers.

False.

In fact, many pieces of ethernet hardware a not physically capable of
sending even VLAN packets that are above the normal base ethernet MTU.

It is therefore untenable to remove this restriction univerally like
this.