I'd try taking a look at the FAQ, which discusses VLANs quite a bit. In particular, you may want to try the VLAN Splinters workaround.
--Justin On April 29, 2014 at 2:36:23 PM, Hui Kang ([email protected]) wrote: > Hi, Justin, > I used OVS 1.9.3. But there is nothing suspicious in the log when I grep > for vlan in the log file. > > - Hui > > > On Tue, Apr 29, 2014 at 5:28 PM, Justin Pettit wrote: > > > On April 29, 2014 at 2:26:18 PM, Hui Kang ([email protected]) wrote: > > > Hi, > > > I use iperf to test the 10G performance of OVS bridge with vlan tag added > > > on the vport for the VMs. > > > > > > On each machine, the OVS bridge are created on the Intel 82599 10G NIC. I > > > found the performance drops significantly when I added vlan tag on the > > > vport of both VMs. > > > > > > no vlan tag: 9.47 Gbps > > > add vlan tag: 3.96 Gbps > > > > > > Is this a normal behavior after adding vlan tag to the packet header? > > > > I don't think that should be happening. What version of OVS are you > > running? Do you see anything suspicious in your ovs-vswitchd.log? > > > > --Justin > > > > > > > > > _______________________________________________ discuss mailing list [email protected] http://openvswitch.org/mailman/listinfo/discuss
