Thank you very much for your help. It does work for me to add arp in the flows.
I will try the last case you have mentioned. Thanks again. At 2016-12-03 05:23:16, "Ben Pfaff" <[email protected]> wrote: >This is in the FAQ. > >Q: My bridge br0 has host 192.168.0.1 on port 1 and host 192.168.0.2 on port 2. >I set up flows to forward only traffic destined to the other host and drop >other traffic, like this:: > > priority=5,in_port=1,ip,nw_dst=192.168.0.2,actions=2 > priority=5,in_port=2,ip,nw_dst=192.168.0.1,actions=1 > priority=0,actions=drop > >But it doesn't work--I don't get any connectivity when I do this. Why? > > A: These flows drop the ARP packets that IP hosts use to establish IP > connectivity over Ethernet. To solve the problem, add flows to allow ARP > to pass between the hosts:: > > priority=5,in_port=1,arp,actions=2 > priority=5,in_port=2,arp,actions=1 > > This issue can manifest other ways, too. The following flows that match on > Ethernet addresses instead of IP addresses will also drop ARP packets, > because ARP requests are broadcast instead of being directed to a specific > host:: > > priority=5,in_port=1,dl_dst=54:00:00:00:00:02,actions=2 > priority=5,in_port=2,dl_dst=54:00:00:00:00:01,actions=1 > priority=0,actions=drop > > The solution already described above will also work in this case. It may > be better to add flows to allow all multicast and broadcast traffic:: > > > priority=5,in_port=1,dl_dst=01:00:00:00:00:00/01:00:00:00:00:00,actions=2 > > priority=5,in_port=2,dl_dst=01:00:00:00:00:00/01:00:00:00:00:00,actions=1 > >On Sat, Dec 03, 2016 at 04:28:43AM +0800, ry0117 wrote: >> I used ovs-ofctl command add flows to ovsbridge which datapath_typ is netdev: >> ovs-ofctl add-flow ovsBusiness "cookie=0x0, table=0, send_flow_rem >> priority=3566,ip,in_port=1 actions=output:8" >> ovs-ofctl add-flow ovsBusiness "cookie=0x0, table=0, send_flow_rem >> priority=3566,ip,in_port=8 actions=output:1" >> but it doesn't work. >> The network topo like this: >> >> >> |---------| tap0 | -------| dpdk0 |--------| >> | VM1 |-----------> | OVS | ----------->| VM2 | >> |---------| | ------ | |-------- | >> >> >> I can't ping the VM1 to VM2. Then I delete all the flows, and add a Normal >> action, VM1 could ping to VM2. >> Do you know why ? Can you give some suggestions or advice for my flows? >> >> >> Thanks very much. >> >> >> >> >> >> >> >> >> At 2016-12-03 02:51:19, "Ben Pfaff" <[email protected]> wrote: >> >On Sat, Dec 03, 2016 at 02:41:28AM +0800, ry0117 wrote: >> >> Thanks for your reply~ >> >> I'm very sorry. I've used ovs-ofctl command to add flow, just like: >> >> ovs-ofctl add-flow ovsBusiness "cookie=0x0, table=0, send_flow_rem >> >> priority=3566,ip,in_port=1 actions=output:8" >> >> But now I want to add a flow: all packets receive from port 1 output from >> >> port 8 in netdev datapath. What should I do to add this flow? >> > >> >ovs-ofctl also works with the netdev datapath. You don't need a >> >different command. _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
