[ovs-discuss] Mask MAC address in DataPath

[Justin Pettit]

> On Jun 30, 2016, at 5:56 AM, Manu S. Keshava <manu at chelsio.com> wrote:
> 
> [root at rattletrap ~]# ovs-appctl bridge/dump-flows br0
> duration=49682s, n_packets=0, n_bytes=0, priority=180008,tcp,nw_src=192.168.0.100,tp_src=6633,actions=NORMAL
> duration=49682s, n_packets=0, n_bytes=0, priority=180007,tcp,nw_dst=192.168.0.100,tp_dst=6633,actions=NORMAL
> duration=49682s, n_packets=0, n_bytes=0, priority=180006,arp,arp_spa=192.168.0.100,arp_op=1,actions=NORMAL
> duration=49682s, n_packets=0, n_bytes=0, priority=180005,arp,arp_tpa=192.168.0.100,arp_op=2,actions=NORMAL
> duration=49682s, n_packets=0, n_bytes=0, priority=180002,arp,dl_src=00:07:43:28:e4:40,arp_op=1,actions=NORMAL
> duration=49682s, n_packets=0, n_bytes=0, priority=180004,arp,dl_src=00:25:90:37:31:2b,arp_op=1,actions=NORMAL
> duration=49682s, n_packets=0, n_bytes=0, priority=180001,arp,dl_dst=00:07:43:28:e4:40,arp_op=2,actions=NORMAL

These are in-band control flows that are enabled when you configure a controller by default.  In-band control allows OVS to communicate to a controller through an interface managed by OVS.  If you really don't want datapath flows to match on those extra fields and your controller is reached through a non-OVS managed interface, you can disable in-band control on that bridge.

--Justin