![]() ![]() For example, the line " 14 0 227.0.0.1 15" means there is a receiver listening on port#14 for multicast group 227.0.0.1. If the GROUP column of the record is a multicast group, this means there is a receiver listening on this port and IGMP Report message comes from the port of this record. Only IPv4 multicast is supported, not applicable to IPv6.Īfter enabling this feature, you can check IGMP snooping table in DOM0 (Domain Zero) with following command:Įvery record contains the port of the switch (OVS), VLAN ID of the traffic, multicast group that this port solicited and the age of this record (seconds).Or else, multicast traffic in the GRE network will be blocked. To enable this feature with GRE network, users should set up an IGMP Querier in the GRE network or forward the IGMP query message from the physical network into the GRE network.When enabling this feature on a pool running IGMP v3, VM migration or network bond failover will result in IGMP version switching to v2.Or else, multicast in the sub network will fallback to broadcast and may decrease XenServer performance. When enabling this feature on a pool, it may also be necessary to enable IGMP querier on one of the physical switches. ![]()
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