Public bug reported:
On Ubuntu 16.04 and libvirt 1.3.1, libvirt wrongly reports the interfaces of
type "network" as type "bridge".
This confuses virt-manager and thus does not allow for example to modify the
interface portgroup once it has been created.
To reproduce, add a network interface to a domain, connected to an
openvswitch bridge. You can then check that the interface reported by
libvirt (through virsh, virt-manager or python-libvirt) has the type
"bridge" and not "network" as it should.
The network is working nonetheless, only the reported configuration is
wrong.
Versions :
root@virt6:~# lsb_release -rd
Description: Ubuntu 16.04.4 LTS
Release: 16.04
root@virt6:~# dpkg -l | grep libvirt
ii libvirt-bin 1.3.1-1ubuntu10.21
amd64 programs for the libvirt library
ii libvirt0:amd64 1.3.1-1ubuntu10.21
amd64 library for interfacing with different virtualization systems
ii python-libvirt 1.3.1-1ubuntu1.1
amd64 libvirt Python bindings
The domain configuration (irrelevant parts removed) :
root@virt6:~# cat /etc/libvirt/qemu/dev.xml
[ ... ]
<interface type='network'>
<mac address='52:54:00:eb:b2:b8'/>
<source network='ovsbr0' portgroup='vlan1'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
</interface>
[ ... ]
root@virt6:~# virsh dumpxml dev
[ ... ]
<interface type='bridge'>
<mac address='52:54:00:eb:b2:b8'/>
<source network='ovsbr0' portgroup='vlan1' bridge='ovsbr0'/>
<vlan>
<tag id='1'/>
</vlan>
<virtualport type='openvswitch'>
<parameters interfaceid='732763c6-78b7-40b2-a02a-0c2216952988'/>
</virtualport>
<target dev='vnet3'/>
<model type='virtio'/>
<alias name='net0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
</interface>
[ ... ]
And if it can be useful, the network definition :
root@virt6:~# virsh net-dumpxml ovsbr0
<network connections='6'>
<name>ovsbr0</name>
<uuid>49bd2303-ae07-4466-aff7-d6c33817b032</uuid>
<forward mode='bridge'/>
<bridge name='ovsbr0'/>
<virtualport type='openvswitch'/>
<portgroup name='vlan1' default='yes'>
<vlan>
<tag id='1'/>
</vlan>
</portgroup>
</network>
** Affects: libvirt (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1766888
Title:
interfaces of type "network" are reported as type "bridge"
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