[ovs-dev] [o[dev] [PATCH v5 4/5] ovn: Implement basic ARP support for L3 logical routers.

[Na Zhu]

Hi Ben,

I do not understand why add the dynamic arp entry to ovs table 65, not the
same table as static arp.
Though the packet match the flows in table 65, there is no output port, so
the packet should be drop, in this way, the dynamic arp is useless, right?


BR
Juno


2016-03-15 23:27 GMT+08:00 Ben Pfaff <blp at ovn.org>:

> On Tue, Mar 15, 2016 at 06:04:04PM +0800, Na Zhu wrote:
> > Hi Ben,
> >
> > I have one question about ARP support for logical router, i notice you
> add
> > table MAC_Binding and ovn-controller translates the entries in
> MAC_Binding
> > to Openflow flow table 65. The flow in table 65 is in this format,
> >
> > table=65, ......, priority=100,reg0=0xa000064,reg7=0x2,metadata=0x4
> > actions=mod_dl_dst:2e:1d:93:5b:1c:48
> >
> > The action is modify dmac, there is no output port for the matched
> packets,
> > can you explain why?
>
> This table implements the get_arp action described in ovn-sb(5), which
> doesn't output a packet directly.
>