Thank you Ben In what kind of scenario, ovs-vsctl will run on a different machine as ovs-vswitchd ? How dose ovs-vsctl connect to the remote ovsdb server? A example will really help. Great appreciate
Best Regards At 2015-04-27 23:12:09, "Ben Pfaff" <b...@nicira.com> wrote: >On Mon, Apr 27, 2015 at 08:02:01PM +0800, ZY wrote: >> Reproduce >> 1. VM-1 is binding with tap: tape502841a-f4 >> 2. when machine reboot, OVS service is down first and the info of >> tape502841a-f4 is store in ovs-db >> 3. libvirt destory the instance and delete tape502841a-f4 >> 4. machine start and bootup the OVS service, OVS read the ovs-db and >> will add-port br-int tape502841a-f4, but failed to add into datapath >> because tape502841a-f4 is not create yet. > >There's no "add-port" happening, it's just that the database still has >the same contents as before reboot. > >> 5. libvirt start instance and create tape502841a-f4 >> 6. the network service of instance is not work because of >> tape502841a-f4 is not in datapath >> >> >> This lead to the PORT is different between ovs-db and ovs-datapath, and >> i have to restart ovs service to make it work. >> I am wonder why OVS do not check the DEV is really exist in system first >> when run 'ovs-vsctl add-port BRIDGE DEV' ? and How to solve this problem? > >ovs-vsctl is just a database interface. It doesn't know anything about >your system interface; in general, it cannot, because it does not >necessarily run on the same machine as ovs-vswitchd. > >You might want to configure OVS to remove all the bridges on reboot.
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