Patch looks great Ben -- thanks for looking into this. - Rob .
On Wed, May 16, 2012 at 12:44 PM, Ben Pfaff <b...@nicira.com> wrote: > Suggested-by: Rob Sherwood <rob.sherw...@bigswitch.com> > Signed-off-by: Ben Pfaff <b...@nicira.com> > --- > PORTING | 11 +++++++++++ > 1 files changed, 11 insertions(+), 0 deletions(-) > > diff --git a/PORTING b/PORTING > index 5281d50..ffde296 100644 > --- a/PORTING > +++ b/PORTING > @@ -245,6 +245,17 @@ ovs_be64 as fixed-width types in network byte order. > Each of the > latter is equivalent to the one of the former, but the difference in > name makes the intended use obvious. > > +The default "fail-mode" for Open vSwitch bridges is "standalone", > +meaning that, when the OpenFlow controllers cannot be contacted, Open > +vSwitch acts as a regular MAC-learning switch. This works well in > +virtualization environments where there is normally just one uplink > +(either a single physical interface or a bond). In a more general > +environment, it can create loops. So, if you are porting to a > +general-purpose switch platform, you should consider changing the > +default "fail-mode" to "secure", which does not behave this way. See > +documentation for the "fail-mode" column in the Bridge table in > +ovs-vswitchd.conf.db(5) for more information. > + > lib/entropy.c assumes that it can obtain high-quality random number > seeds at startup by reading from /dev/urandom. You will need to > modify it if this is not true on your platform. > -- > 1.7.2.5 > _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
