From: David Wragg <david@weave.works> Date: Wed, 10 Feb 2016 00:05:54 +0000
> Prior to 4.3, openvswitch tunnel vports (vxlan, gre and geneve) could > transmit vxlan packets of any size, constrained only by the ability to > send out the resulting packets. 4.3 introduced netdevs corresponding > to tunnel vports. These netdevs have an MTU, which limits the size of > a packet that can be successfully encapsulated. The default MTU > values are low (1500 or less), which is awkwardly small in the context > of physical networks supporting jumbo frames, and leads to a > conspicuous change in behaviour for userspace. > > This patch series sets the MTU on openvswitch-created netdevs to be > the relevant maximum (i.e. the maximum IP packet size minus any > relevant overhead), effectively restoring the behaviour prior to 4.3. > > Where relevant, the limits on MTU values that can be directly set on > the netdevs are also relaxed. > > Changes in v2: > * Extend to all openvswitch tunnel types, i.e. gre and geneve as well > * Use IP_MAX_MTU > > Changes in v3: > * Fix block comment style Series applied, thanks. _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
