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

[Ben Pfaff]

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.