[openstack-dev] [neutron][dvr]Why drop flows like "table=1, priority=3, arp, dl_vlan=1, arp_tpa=, actions=drop"?

zhi changzhi1990 at gmail.com
Tue Apr 19 02:30:30 UTC 2016

hi, all.

    I have a small question about flows in br-tun. I find some flows which
drop traffic. These flows like this "

 table=1, n_packets=2, n_bytes=84, idle_age=731, hard_age=65534,
priority=3,arp,dl_vlan=1,arp_tpa= actions=drop
 table=1, n_packets=1, n_bytes=42, idle_age=904,
priority=3,arp,dl_vlan=2,arp_tpa= actions=drop
table=1, n_packets=0, n_bytes=0, idle_age=65534, hard_age=65534,
priority=2,dl_vlan=1,dl_dst=fa:16:3e:35:25:42 actions=drop
table=1, n_packets=0, n_bytes=0, idle_age=938,
priority=2,dl_vlan=2,dl_dst=fa:16:3e:de:07:79 actions=drop


I have a router which attached two subnets. One is, mac
address is fa:16:3e:35:25:42. Another is, mac address is

What does these flows used for?

Zhi Chang
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