2-18Configuring multicast group replacement on a port or a group of portsFollow these steps to configure multicast group replacement on a port or a group of ports:To do... Use the command... RemarksEnter system view system-view —interface interface-typeinterface-numberEnter Ethernet port/Layer 2aggregate port view or portgroup view port-group manualport-group-nameRequiredUse either approachEnable multicast groupreplacementigmp-snooping overflow-replace[ vlan vlan-list ]RequiredDisabled by defaultBe sure to configure the maximum number of multicast groups allowed on a port (refer to ConfiguringMaximum Multicast Groups that Can Be Joined on a Port) before enabling multicast groupreplacement. Otherwise, the multicast group replacement functionality will not take effect.Displaying and Maintaining IGMP SnoopingTo do... Use the command... RemarksView IGMP Snooping multicastgroup informationdisplay igmp-snooping group [ vlanvlan-id ] [ slot slot-number ] [ verbose ]Available inany viewView the statistics information ofIGMP messages learned by IGMPSnoopingdisplay igmp-snooping statistics Available inany viewClear IGMP Snooping multicastgroup informationreset igmp-snooping group{ group-address | all } [ vlan vlan-id ]Available inuser viewClear the statistics information of allkinds of IGMP messages learnedby IGMP Snoopingreset igmp-snooping statistics Available inuser viewz The reset igmp-snooping group command works only on an IGMP Snooping–enabled VLAN,but not on a VLAN with IGMP enabled on its VLAN interface.z The reset igmp-snooping group command cannot clear the IGMP Snooping multicast groupinformation for static joins.
