Due to VCAP limitation, ARP flow entry will generate an error once combinated-mode is enabled.
When combinated mode is enabled, VCAP needs to match the same fields as ICAP. ARP flows use UDF in ICAP, but not all HW platforms support UDF in VCAP.
ovs-vsctl set-combinated-mode true admin@PicOS-OVS$ovs-ofctl dump-flows br2 OFPST_FLOW reply (OF1.4) (xid=0x2): cookie=0x0, duration=70.192s, table=0, n_packets=n/a, n_bytes=0, priority=500,arp actions=output:2 cookie=0x0, duration=6.928s, table=0, n_packets=n/a, n_bytes=0, priority=200,in_port=7 actions=push_vlan:0x8100,set_field:2001->vlan_vid,output:8
sent packets match both flows to ge-1/1/7,ge-1/1/2 will receive packets that with "push_vlan:0x8100,set_field:2001->vlan_vid",ge-1/1/8 will not receive any packets.