[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

Re: [libvirt] Notes on configuring Open vSwitch, Linux bridge and Libvirt



On Fri, Jul 12, 2013 at 05:51:14PM +0530, Kashyap Chamarthy wrote:
> Heya Laine,
> 
> Here's some quick notes to associate libvirt guests to Open vSwitch.
> 
> Configure Open vSwitch
> ----------------------
> 
> Now that a regular Linux bridge is configured, let's try to configure an
> OVS brdige and get IP addresses from that space:
> 
> Create an Open vSwitch bridge device called 'ovsbr', and display the
> current state of OpenvSwitch database contents:
> 
>     $ ovs-vsctl add-br ovsbr
>     $ ovs-vsctl show
> 
> 
> Add a virtual ethernet interface called 'veth0' with
> 
>     $ ip link add name veth0 \
>       type veth peer name veth1
> 
> Add 'veth0' ethernet device to the Linux bridge 'br0', and enumerate all
> bridge devices:
> 
>     $ brctl addif br0 veth0
>     $ brctl show

I don't really see why you are linking ovs to a traditional software
bridge. You now have the overheads of both bridging & ovs code in
your data path. Surely it is better to connect ovs with your physical
NIC, taking traditional bridges out of the loop completely.

Daniel
-- 
|: http://berrange.com      -o-    http://www.flickr.com/photos/dberrange/ :|
|: http://libvirt.org              -o-             http://virt-manager.org :|
|: http://autobuild.org       -o-         http://search.cpan.org/~danberr/ :|
|: http://entangle-photo.org       -o-       http://live.gnome.org/gtk-vnc :|


[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]