Team, I am working through an issue with OVS and tunneling. My setup consist of 2 nodes running Ubuntu 12.04 LTS / KVM / OVS 1.10 and the Mellanox Connect X3 , and 2 nodes running Ubuntu 12.04 LTS / KVM / OVS 1.10 and the Mellanox Connect X3 Pro. Currently I am seeing an 85% reduction of throughput VM-VM using iperf vs the same iperf test running on the nodes br-tun to br-tun... ConnectX3 and ConnectX3 Pro show the exact same results , also although VXLAN performance is slightly better it still shows the same 85% reduction.
I can clear this up by adjusting the MTU's 7000 on the VM 8000 on the br-tun 9000 on the nic Is this expected behavior ? Any help is greatly appreciated. James Lopez | Principal Network Engineer IO M +1.602.526.0956 | O +1.602.273.5439 E [email protected]<mailto:[email protected]> | io.com Follow IO on LinkedIn<http://www.linkedin.com/company/IO> | Twitter<https://twitter.com/ioDataCenters> | Google+<https://plus.google.com/u/0/b/108777203422444511364/108777203422444511364/posts> | YouTube<http://www.youtube.com/ioDataCenters> | Facebook<https://www.facebook.com/pages/IO/267122123451> Founded in 2007, IO is a worldwide leader in software defined data center technology, services and solutions that enable businesses and governments to intelligently control their information. The communication contained in this e-mail is confidential and is intended only for the named recipient(s) and may contain information that is privileged, proprietary, attorney work product or exempt from disclosure under applicable law. If you have received this message in error, or are not the named recipient(s), please note that any form of distribution, copying or use of this communication or the information in it is strictly prohibited and may be unlawful. Please immediately notify the sender of the error, and delete this communication including any attached files from your system. Thank you for your cooperation.
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