Looping in Ansis, as he said that with the new OVS + libvirt integration, he believes that libvirt will automatically transfer the iface-id with a live migration. My testing had been done with the old OVS + libvirt model, where we used type=ethernet, in which case iface-id configuration was done entirely outside of libvirt.
Dan On Tue, Jun 26, 2012 at 8:01 PM, Dan Wendlandt <d...@nicira.com> wrote: > > > On Tue, Jun 26, 2012 at 7:40 PM, Kyle Mestery (kmestery) < > kmest...@cisco.com> wrote: > >> >> On Jun 26, 2012, at 1:37 PM, Dan Wendlandt wrote: >> >> > >> > >> > On Tue, Jun 26, 2012 at 6:28 PM, Kyle Mestery (kmestery) < >> kmest...@cisco.com> wrote: >> > Hi folks: >> > >> > I think this is the correct forum for this question, but please let me >> know. >> > >> > When Nova migrates a virtual machine from one host to another, who >> transfers the data for the port stored in the OVS DB? >> > >> > Is the data you're talking about the "iface-id" information created by >> the virt driver when the VM is first booted? If so, yes, when a VM is >> migrated, the virt driver on the new compute host will again set the >> "iface-id" and related OVSDB values, while the virt driver on the old host >> cleans them up. >> > >> > Dan >> > >> This was exactly it, thanks for confirming Dan! I wasn't sure if we were >> taking advantage of hooks into libvirt for example to handle this migration >> or not. >> > > Its been a while since I've dealt with that code, so things are pretty > fuzzy and I could be wrong. Let me know what you find out :) > > Dan > > > >> >> Kyle >> >> > >> > I assume this must be handled by the virt driver. Is this the case? Or >> is this not supported currently? >> > >> > Thanks, >> > Kyle >> > -- >> > Mailing list: https://launchpad.net/~netstack >> > Post to : netstack@lists.launchpad.net >> > Unsubscribe : https://launchpad.net/~netstack >> > More help : https://help.launchpad.net/ListHelp >> > >> > >> > >> > -- >> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> > Dan Wendlandt >> > Nicira, Inc: www.nicira.com >> > twitter: danwendlandt >> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> > >> >> > > > -- > ~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Dan Wendlandt > Nicira, Inc: www.nicira.com > twitter: danwendlandt > ~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~ Dan Wendlandt Nicira, Inc: www.nicira.com twitter: danwendlandt ~~~~~~~~~~~~~~~~~~~~~~~~~~~
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