[one-users] OVS vnet tag dissapears after snapshot revert with

[Rogier Mars]

Hi, 

Can anyone confirm this issue? Could it be a KVM or Libvirt bug? I don't see any opennebula code that does anything during a snapshot?

Anyone ever had a simular problem? 

Cheers, 

Rogier

On Jul 31, 2013, at 11:30 PM, Rogier Mars wrote:

> Hi, 
> 
> I've just upgraded from ONE-4.0 to ONE-4.2 and am testing some functionality now. I have ONE running with OpenVSwitch. 
> 
> When I create a snapshot from a VM that is running with a QCOW2 image file and I revert that snapshot, the vnet interface for that VM in opennebula misses the vlan-tag that puts the traffic in the correct vlan. When I manually set the tag for the vnet interface again (ovs-vsctl set port vnet1 tag=206) , the vm works fine again. See the before and after the "revert snapshot" details below. The vnet1 interface is the interface connected to the VM that I reverted the snapshot on. 
> 
> When I create a new VM the vnet tag is configured correctly. It seems this only happens after reverting a snapshot.
> 
> Does anyone experienced this before? I'm not sure this problem existed in previous version as well, I've never really used the snapshots before. 
> 
> Kind regards, 
> 
> Rogier
> 
> BEFORE REVERT SNAPSHOT (working network)
> [root at cloud4 206]# ovs-vsctl show
> 292bcb85-e245-4e6b-8e53-c520faf2e6c6
>     Bridge "ovsbr0"
>         Port "bond0"
>             Interface "eth1"
>             Interface "eth0"
>         Port "vnet0"
>             tag: 206
>             Interface "vnet0"
>         Port "vnet1"
>             tag: 206
>             Interface "vnet1"
>         Port "br206"
>             tag: 206
>             Interface "br206"
>                 type: internal
>         Port "ovsbr0"
>             Interface "ovsbr0"
>                 type: internal
>     ovs_version: "1.10.0"
> [root at cloud4 206]#
> 
> AFTER REVERT SNAPSHOT (network inaccessible)
> [root at cloud4 206]# ovs-vsctl show
> 292bcb85-e245-4e6b-8e53-c520faf2e6c6
>     Bridge "ovsbr0"
>         Port "bond0"
>             Interface "eth1"
>             Interface "eth0"
>         Port "vnet0"
>             tag: 206
>             Interface "vnet0"
>         Port "br206"
>             tag: 206
>             Interface "br206"
>                 type: internal
>         Port "vnet1"
>             Interface "vnet1"
>         Port "ovsbr0"
>             Interface "ovsbr0"
>                 type: internal
>     ovs_version: "1.10.0"
> [root at cloud4 206]# 
> 
> 
> 
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