Hi, all I am using ovs-2.5.2 and get error when creating a bridge using “ovs-vsctl add-br br-eth”
ovs-vsctl: Error detected while setting up 'br-eth'. See ovs-vswitchd log for details. ovs-vswitchd log is as below: 2017-05-11T03:45:25.293Z|00026|ofproto_dpif|INFO|system@ovs-system: Datapath supports recirculation 2017-05-11T03:45:25.293Z|00027|ofproto_dpif|INFO|system@ovs-system: MPLS label stack length probed as 1 2017-05-11T03:45:25.293Z|00028|ofproto_dpif|INFO|system@ovs-system: Datapath supports unique flow ids 2017-05-11T03:45:25.293Z|00029|ofproto_dpif|INFO|system@ovs-system: Datapath supports ct_state 2017-05-11T03:45:25.293Z|00030|ofproto_dpif|INFO|system@ovs-system: Datapath supports ct_zone 2017-05-11T03:45:25.293Z|00031|ofproto_dpif|INFO|system@ovs-system: Datapath supports ct_mark 2017-05-11T03:45:25.293Z|00032|ofproto_dpif|INFO|system@ovs-system: Datapath supports ct_label 2017-05-11T03:45:25.364Z|00001|ofproto_dpif_upcall(handler226)|INFO|received packet on unassociated datapath port 0 2017-05-11T03:45:25.368Z|00033|netdev_linux|WARN|ethtool command ETHTOOL_GFLAGS on network device br-eth failed: No such device 2017-05-11T03:45:25.368Z|00034|dpif|WARN|system@ovs-system: failed to add br-eth as port: No such device 2017-05-11T03:45:25.368Z|00035|bridge|INFO|bridge br-eth: using datapath ID 00002a51cf9f2841 2017-05-11T03:45:25.368Z|00036|connmgr|INFO|br-eth: added service controller "punix:/var/run/openvswitch/br-eth.mgmt" Reproduce step: 1. sh reproduce.sh 2. sh del_br.sh Reproduce scripts: 1. reproduce.sh: #!/bin/sh outer_loop=1 test () { echo "=====start $outer_loop time test====" brctl addbr br0;ifconfig br0 up inner_loop=1 while [ $inner_loop -le 10 ] do echo "======start $inner_loop time vm life=====" echo `date` virsh create /vm.xml sleep 30 virsh destroy test-ovs let inner_loop++ done ifconfig br0 down; brctl delbr br0 ovs-vsctl add-br br0 ovs-vsctl del-br br0 } while [ $outer_loop -le 100 ] do test let outer_loop++ done 2. del_br.sh #!/bin/sh count=1 test () { echo "=====start $count time test====" echo `date` sleep 10 ifconfig br0 down; brctl delbr br0 } while [ $count -le 100 ] do test let count++ done FYI, more information, please refer to “Failed to add ovs bridge” in ovs-discuss mail list. _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev