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</o:shapelayout></xml><![endif]--></head><body lang=ZH-TW link=blue vlink=purple style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:ZH-HK'>Hi all,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:ZH-HK'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>As I know, Openvswitch is a L2 virtual switch that currently does not support IGMP snooping/query.</span><span lang=EN-US style='mso-fareast-language:ZH-HK'> (This has been confirmed from Openvswitch mailing list)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:ZH-HK'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>We are running 2 VM (VM-A and VM-B) under same VLAN on the same </span><span lang=EN-US style='mso-fareast-language:ZH-HK'>OpenStack compute node (Grizzly version)</span><span lang=EN-US> with Openvswitch</span><span lang=EN-US style='mso-fareast-language:ZH-HK'> (v1.9.0)</span><span lang=EN-US>. Theoretically, if only VM-A has joined the multicast group, VM-B can also receive this multicast traffic even VM-B has not join the group (since there’s no IGMP snooping/query implementation in Openvswitch)</span><span lang=EN-US style='mso-fareast-language:ZH-HK'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:ZH-HK'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>However in our experiment, VM-B would not receive the multicast traffic joined by VM-A. The effect like Openvswitch has already supported IGMP snooping/query. Is there anything we have missed?</span><span lang=EN-US style='mso-fareast-language:ZH-HK'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:ZH-HK'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:ZH-HK'>Regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:ZH-HK'>Taurus<o:p></o:p></span></p></div></body></html>