Operation Manual – Multicast ProtocolH3C S3610&S5510 Series Ethernet Switches Chapter 2 IGMP Snooping Configuration2-16To do... Use the command... RemarksConfigure the IGMPlast-member queryintervaligmp-snoopinglast-member-query-intervalintervalOptional1 second by defaultCaution:In the configuration, make sure that the IGMP general query interval is larger than themaximum response time for IGMP general queries. Otherwise, multicast groupmembers may be deleted by mistake.2.5.4 Configuring Source IP Address of IGMP QueriesUpon receiving an IGMP query whose source IP address is 0.0.0.0 on a port, the switchwill not set that port as a router port. This may prevent multicast forwarding entries frombeing correctly created at the data link layer and cause multicast traffic forwardingfailure in the end. When a Layer 2 device acts as an IGMP-Snooping querier, to avoidthe aforesaid problem, you are commended to configure a non-all-zero IP address asthe source IP address of IGMP queries.Follow these steps to configure source IP address of IGMP queries:To do... Use the command... RemarksEnter system view system-view —Enter VLAN view vlan vlan-id —Configure the sourceaddress of IGMP generalqueriesigmp-snoopinggeneral-query source-ip{ current-interface |ip-address }Optional0.0.0.0 by defaultConfigure the source IPaddress of IGMPgroup-specific queriesigmp-snoopingspecial-query source-ip{ current-interface |ip-address }Optional0.0.0.0 by defaultCaution:The source address of IGMP query messages may affect IGMP querier selection withinthe segment.
