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Bug 1403896

Summary: High packet loss when live migrating windows guests
Product: Red Hat OpenStack Reporter: Pierre-Andre MOREY <pmorey>
Component: openstack-novaAssignee: Eoghan Glynn <eglynn>
Status: CLOSED DUPLICATE QA Contact: Prasanth Anbalagan <panbalag>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 8.0 (Liberty)CC: ailan, berrange, dasmith, dgilbert, eglynn, kchamart, panbalag, pmorey, sbauza, sferdjao, sgordon, srevivo, vaggarwa, vromanso, yvugenfi
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
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Clone Of: Environment:
Last Closed: 2017-05-24 15:11:52 UTC Type: Bug
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1411764    
Bug Blocks:    

Comment 2 Sahid Ferdjaoui 2016-12-29 14:27:14 UTC 
Based on comment from David it seems that the virtio-win needs a feature to announce its presence on the new network links since the hypervisor does not have the knowledge of the guest network configuration so some packets could be missed in case of vlan usage.

Couldn't be reasonable to ask maintainers of virtio-win to get more information on this VIRTIO_NET_F_GUEST_ANNOUNCE support ?
Comment 3 Pierre-Andre MOREY 2016-12-29 14:42:26 UTC 
Yes, 

I will do.

Regards,
Pierre-André.
Comment 4 Yvugenfi@redhat.com 2017-01-01 14:25:34 UTC 
(In reply to Sahid Ferdjaoui from comment #2)
> Based on comment from David it seems that the virtio-win needs a feature to
> announce its presence on the new network links since the hypervisor does not
> have the knowledge of the guest network configuration so some packets could
> be missed in case of vlan usage.
> 
> Couldn't be reasonable to ask maintainers of virtio-win to get more
> information on this VIRTIO_NET_F_GUEST_ANNOUNCE support ?

Hi,

We don't have the support for VIRTIO_NET_F_GUEST_ANNOUNCE feature in our Windows drivers now.

Best regards,
Yan.
Comment 11 Stephen Gordon 2017-05-24 15:11:52 UTC 

*** This bug has been marked as a duplicate of bug 1411764 ***
Comment 12 awaugama 2017-09-07 19:03:18 UTC 
Dup -- QE will decide about automating the original