Comment 2 for bug 1196963

just a note to specify this bug :

create two networks : one with vxlan segment 101, one with gre segment 101.
deploy vm on two hypervisors, so that each hypervisors have almost one vm in each netwok.
The resulting flow table will be :

NXST_FLOW reply (xid=0x4):
 cookie=0x0, duration=49.276s, table=0, n_packets=0, n_bytes=0, idle_age=49, priority=3,tun_id=0x65,dl_dst=fa:16:3e:a4:06:ad actions=mod_vlan_vid:2,NORMAL
 cookie=0x0, duration=831.872s, table=0, n_packets=0, n_bytes=0, idle_age=831, priority=3,tun_id=0x65,dl_dst=fa:16:3e:14:37:15 actions=mod_vlan_vid:1,NORMAL
 cookie=0x0, duration=149.591s, table=0, n_packets=0, n_bytes=0, idle_age=149, priority=3,tun_id=0x65,dl_dst=fa:16:3e:55:a7:b2 actions=mod_vlan_vid:1,NORMAL
 cookie=0x0, duration=1091.831s, table=0, n_packets=89, n_bytes=9138, idle_age=16, priority=4,in_port=1,dl_vlan=1 actions=set_tunnel:0x65,NORMAL
 cookie=0x0, duration=49.522s, table=0, n_packets=14, n_bytes=1292, idle_age=21, priority=4,in_port=1,dl_vlan=2 actions=set_tunnel:0x65,NORMAL
 cookie=0x0, duration=49.401s, table=0, n_packets=0, n_bytes=0, idle_age=49, priority=3,tun_id=0x65,dl_dst=01:00:00:00:00:00/01:00:00:00:00:00 actions=mod_vlan_vid:2,output:1
 cookie=0x0, duration=3017.996s, table=0, n_packets=18, n_bytes=1368, idle_age=51, priority=1 actions=drop

as you can see, broadcast incoming packets from tunnel 101 (tun_id=0x65) will go in only one local vlan (vlan_vid:2), so broadcast traffic that come from the GRE tunnel 101 on hypervisor 1, may go to vm that have a port in a VXLan tunnel 101, on hypervisor 2.