Thank you, applied.
On Fri, Aug 30, 2013 at 05:17:53PM +0000, Pritesh Kothari (pritkoth) wrote: > ack, looks good to me. > -pritesh > > On Aug 30, 2013, at 10:02 AM, Ben Pfaff wrote: > > > Signed-off-by: Ben Pfaff <b...@nicira.com> > > --- > > FAQ | 34 ++++++++++++++++++++++++++++++++++ > > 1 file changed, 34 insertions(+) > > > > diff --git a/FAQ b/FAQ > > index 75d9007..5406e84 100644 > > --- a/FAQ > > +++ b/FAQ > > @@ -250,6 +250,40 @@ A: The following commands configure br0 with eth0 and > > tap0 as trunk > > > > ovs-vsctl clear bridge br0 mirrors > > > > +Q: Does Open vSwitch support configuring a port in promiscuous mode? > > + > > +A: Yes. How you configure it depends on what you mean by "promiscuous > > + mode": > > + > > + - Conventionally, "promiscuous mode" is a feature of a network > > + interface card. Ordinarily, a NIC passes to the CPU only the > > + packets actually destined to its host machine. It discards > > + the rest to avoid wasting memory and CPU cycles. When > > + promiscuous mode is enable, however, it passes every packet to > > + the CPU. On an old-style shared-media or hub-based network, > > + this allows the host to spy on all packets on the network. > > + But in the switched networks you'll find pretty much > > + everywhere these days, promiscuous mode doesn't have much > > + effect, because few packets not destined to a host are > > + delivered to the host's NIC. > > + > > + This form of promiscuous mode is configured in the guest OS of > > + the VMs on your bridge, e.g. with "ifconfig". > > + > > + - The VMware vSwitch uses a different definition of "promiscuous > > + mode". When you configure promiscuous mode on a VMware vNIC, > > + the vSwitch sends a copy of every packet received by the > > + vSwitch to that vNIC. That has a much bigger effect than just > > + enabling promiscuous mode in a guest OS. Rather than getting > > + a few stray packets for which the switch does not yet know the > > + correct destination, the vNIC gets every packet. The effect > > + is similar to replacing the vSwitch by a virtual hub. > > + > > + This "promiscuous mode" is what switches normally call "port > > + mirroring" or "SPAN". For information on how to configure > > + SPAN, see "How do I configure a port as a SPAN port, that is, > > + enable mirroring of all traffic to that port?" > > + > > Q: How do I configure a VLAN as an RSPAN VLAN, that is, enable > > mirroring of all traffic to that VLAN? > > > > -- > > 1.7.10.4 > > > > _______________________________________________ > > dev mailing list > > dev@openvswitch.org > > http://openvswitch.org/mailman/listinfo/dev > _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
