[ovs-discuss] host networking, Open vSwitch and boot order

Tim Spriggs tims at uahirise.org
Mon Aug 27 23:43:38 UTC 2012


On Thu, Aug 23, 2012 at 6:56 PM, Gurucharan Shetty <gshetty at nicira.com> wrote:
>
> Does this help for your use case?
> http://openvswitch.org/pipermail/dev/2012-May/016972.html
>
> The scripts are all there. But, someone needs to call it.
>
> ifup --allow=ovs $list_of_bridges

Interesting. I haven't applied this to my system but if I am
understanding it correctly, this actually configures OVS on boot via
/etc/network/interfaces. I'm still not convinced it would work since
/etc/init.d/networking is called before openvswitch is running. I like
the idea of configuring openvswitch in this manner however it would
kill any ability to make permanent changes via the ovs-* commands
which is a paradigm shift from what I have gathered from the
documentation. Maybe I am wrong but it seems like the expected
workflow is something on the order of:

0) Install OVS
1) Configure OVS resources (using: ovs-vsctl ...)
2) Configure /etc/network/interfaces to generically reference OVS resources
3) Cross fingers and reboot

The above would modify it to:

0) Install OVS
1) Configure /etc/network/interfaces to configure OVS
2) Cross fingers and reboot

Thus eliminating any direct interaction with OVS.

Thanks,
-Tim



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