On Wed, Oct 09, 2013 at 03:54:36PM +0000, Kavanagh, Mark B wrote: > I have a question regarding the behaviour of the drop action.
There is no drop action. > The FAQ states: > > "An empty set of actions causes a packet to be dropped. You can > specify an empty set of actions with "actions=" on the ovs-ofctl > command line". > > So, for example if I add a flow using ofctl, specifying the action as > 'drop', I assume that a flow table entry, consisting of the flow key > and an empty actions field is added to the vswitchd's flow table. Yes. > In terms of how the drop action actually works, is there an explicit > DROP action that is executed for flows that match this flow entry > (similar to the PUSH_VLAN, OUTPUT, SET, etc. actions), and if not, > what is the mechanism by which packets are dropped? No. There is no drop action. When a switch "drops" a packet, that just means that it doesn't forward it anywhere. By specifying no actions, the packet is not forwarded anywhere and, thus, it is dropped. _______________________________________________ discuss mailing list [email protected] http://openvswitch.org/mailman/listinfo/discuss
