[ovs-dev] [PATCH] FAQ: Add Q&A about bridge compatibility.

[Ben Pfaff]

Thanks, applied to master.

On Fri, Oct 18, 2013 at 10:49:31AM -0700, Justin Pettit wrote:
> Looks great.  Thanks!
> 
> --Justin
> 
> 
> On Oct 18, 2013, at 10:29 AM, Ben Pfaff <blp at nicira.com> wrote:
> 
> > Signed-off-by: Ben Pfaff <blp at nicira.com>
> > ---
> > FAQ |   19 +++++++++++++++++++
> > 1 file changed, 19 insertions(+)
> > 
> > diff --git a/FAQ b/FAQ
> > index 99e6107..b81ee6c 100644
> > --- a/FAQ
> > +++ b/FAQ
> > @@ -198,6 +198,25 @@ A: Tunnel virtual ports are not supported, as described in the
> >    actions.  On Linux kernels before 2.6.39, maximum-sized VLAN packets
> >    may not be transmitted.
> > 
> > +Q: What happened to the bridge compatibility feature?
> > +
> > +A: Bridge compatibility was a feature of Open vSwitch 1.9 and earlier.
> > +   When it was enabled, Open vSwitch imitated the interface of the
> > +   Linux kernel "bridge" module.  This allowed users to drop Open
> > +   vSwitch into environments designed to use the Linux kernel bridge
> > +   module without adapting the environment to use Open vSwitch.
> > +
> > +   Open vSwitch 1.10 and later do not support bridge compatibility.
> > +   The feature was dropped because version 1.10 adopted a new internal
> > +   architecture that made bridge compatibility difficult to maintain.
> > +   Now that many environments use OVS directly, it would be rarely
> > +   useful in any case.
> > +
> > +   To use bridge compatibility, install OVS 1.9 or earlier, including
> > +   the accompanying kernel modules (both the main and bridge
> > +   compatibility modules), following the instructions that come with
> > +   the release.  Be sure to start the ovs-brcompatd daemon.
> > +
> > 
> > Terminology
> > -----------
> > -- 
> > 1.7.10.4
> > 
> > _______________________________________________
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> > dev at openvswitch.org
> > http://openvswitch.org/mailman/listinfo/dev
>