Thank you for your kind reply! I test the multicast this morning, and found that with set field I can send VxLAN encapsulated tunnel packet with multicast tun-dst address. But in order to receive the multicast packet, the machine running openvswitch should join a multicast group, or the multicast packet will be discarded. Does ovs provide any command-line method to join an interface into a specific multicast group(other than 224.0.0.1)? 224.0.0.1 is default group that all host will join in, but it cannot be forwarded by physical network devices.
Thanks 发件人: 邓尧 [mailto:tors...@gmail.com] 发送时间: 2014年7月23日 13:57 收件人: 朱宗敏(研七 福州) 抄送: discuss@openvswitch.org 主题: Re: [ovs-discuss] How can I make ovs send multicast VxLAN tunnel packets---that's to set the tun-dst a multicast group address? IIRC, OVS doesn't support multicast, if you really need such feature, try the vxlan implemented in mainline kernel. I didn't try myself, but google says mainline kernel supports that. On Tue, Jul 22, 2014 at 3:41 PM, 朱宗敏(研七 福州) <zhuzong...@ruijie.com.cn<mailto:zhuzong...@ruijie.com.cn>> wrote: Hello folks: Currently, we can build up a connection between two VxLAN networks by setting unicast ip address to the "remote_ip" option of VxLAN type interface on openvswitch. But when there are many VxLAN networks, we hope to broadcast the VxLAN packet to all peers; but it is in-convenient to set all the unicast "remote_ip" parameters one-by-one. I have tried to set the "remote_ip" with a multicast group address, such as 224.0.0.2 or 225.1.1.1 using command: sudo ovs-vsctl add-port br1 vx1 -- set interface vx1 type=vxlan options:remote_ip=225.1.1.1 The command does not return error, but ovs does not send the multicast VxLAN packet out as expected. And in log, I can find a warning "vx1: multicast remote_ip=225.1.1.1 not allowed". Originally, VxLAN depends on multicast to find & resolve the Mapping(IP, MAC) among different VxLAN networks. So I think there might be some kind of configure to make use of the multicast characteristic of VxLAN. Can you kindly offer me some help on it? I would really appreciate your help. Thanks! _______________________________________________ discuss mailing list discuss@openvswitch.org<mailto:discuss@openvswitch.org> http://openvswitch.org/mailman/listinfo/discuss
_______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
