Bug 1394542

Summary: Hot unlinking vNIC with external network attached is not working as expected
Product: [oVirt] ovirt-engine Reporter: Mor <mkalfon>
Component: BLL.NetworkAssignee: Dan Kenigsberg <danken>
Status: CLOSED WONTFIX QA Contact: Meni Yakove <myakove>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 4.1.0CC: bugs
Target Milestone: ---Flags: mkalfon: planning_ack?
mkalfon: devel_ack?
mkalfon: testing_ack?
Target Release: ---   
Hardware: x86_64   
OS: Linux   
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Last Closed: 2016-11-13 12:36:30 UTC Type: Bug
Regression: --- Mount Type: ---
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oVirt Team: Network RHEL 7.3 requirements from Atomic Host:
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compressed engine.log none

Description Mor 2016-11-13 09:40:37 UTC 
Description of problem:
In a running VM which has vNIC attached to external network, changing the vNIC link state from "Up" to "Down" pops blocking message in the UI.

Version-Release number of selected component (if applicable):
oVirt Engine Version: 4.1.0-0.0.master.20161112231308.git672bd31.el7.centos

How reproducible:
100%

Steps to Reproduce:
1. Create a VM with additional vNIC.
2. Create external network on external network provider.
3. Attach the additional vNIC to the external network.
4. Turn on the VM.
5. Try to unlink the vNIC while VM is running.

Actual results:
"Cannot edit Interface. External network cannot be changed while the virtual machine is running. This is tested with OpenStack Neutron and OVN provider external networks."

Expected results:
Link state should be changed.

Additional info:
Tested both in Neutron and OVN external provider networks.

engine.log:
2016-11-13 11:24:19,479 WARN  [org.ovirt.engine.core.bll.network.vm.UpdateVmInterfaceCommand] (default task-1) [603bd99f-13ce-498f-a35d-5cb86e0a582d] Validation of action 'UpdateVmInterface' failed for user admin@internal-authz. Reasons: VAR__TYPE__INTERFACE,VAR__ACTION__UPDATE,ACTION_TYPE_FAILED_EXTERNAL_NETWORK_CANNOT_BE_REWIRED
Comment 1 Red Hat Bugzilla Rules Engine 2016-11-13 09:40:44 UTC 
Target release should be placed once a package build is known to fix a issue. Since this bug is not modified, the target version has been reset. Please use target milestone to plan a fix for a oVirt release.
Comment 2 Mor 2016-11-13 09:43:11 UTC 
Created attachment 1220130 [details]
compressed engine.log
Comment 3 Dan Kenigsberg 2016-11-13 12:36:30 UTC 
I'm sorry for misunderstanding your initial bug request.

I do not see a current need to support modification of link state in external network providers.

Thanks for opening this bug.