First check your cable - ex. make sure it is CAT6 and of good quality. It looks like you are using 10G Copper port. Also, per my understanding of ethtool, you should run it on interface, for example:
# ethtool ovs-dpdk-0 | grep Speed Cheers On Sun, Oct 29, 2017 at 11:22 PM, 刘君03 <[email protected]> wrote: > Hello, OVS friends, I am a novice who uses ovs. Now encounter a thorny > problem. > > Basic environment：CentOS Linux release 7.4.1708 (Core) > > Linux version 3.10.0-693.2.2.el7.x86_64 > > Installation procedure reference：http://docs.openvswitch.org/en/latest/ > intro/install/dpdk/ > > & > http://docs.openvswitch.org/en/latest/intro/install/general/ > > Test Environment： > > Urgent problem to show：（1）Tester found: Large loss of data packets when > 100、1000Mb/s and 10Gb/s > > （2）ethtool command as > shown below（and can not modify field “speed”）： > > （3）ovs-vsctl list command as > shown below（link_speed=10,000,000=10Mb/s，Only “options” fields can be > manually modified to “link_speed=10G”） > > > > Urgent problem：（1）Whether a large number of lost packets because > speed=10Mb/s？How to modify this value？ > > （2）Why create ovs-switch（datapath_type=netdev）will > make the default link_speed=10Mb/s？ > > （3）Whether or not special parameter settings are required for > link_speed=10Gb/s？ > > > > Remarks：（1）Virtual Firewall status is ok. > > > > _______________________________________________ > discuss mailing list > [email protected] > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss > >
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