Virtual Private LAN Service208FD 100/320Gbps NT and FX NT IHub Services Guide3HH-11985-AAAA-TQZZA Issue: 135.8.5.4 Configuring SAP-specific IGMP ParametersThe following SAP-specific IGMP parameters can be configured:• mrouter-port:This command specifies whether a multicast router is attached behind this SAP.configure service vpls service-id sap sap-id igmp-snooping mrouter-portWhen configuring an SAP as an mrouter-port, then IGMP REPORTS generatedby the IGMP subsystem of the containing v-VPLS/VPLS are sent out on this SAP.In general, IGMP subsystems generate IGMP REPORTS as answer to a receivedQUERY, or when an SAP joins a multicast group.If two multicast edge routers exist in the network, one of them will become theactive querier. While the other multicast edge router (non-querier) stops sendingIGMP QUERIES, it should still receive IGMP REPORTS to keep its multicast treesup to date. To support this, the mrouter-port should be enabled on all SAPsconnecting to a multicast router.The no form of the command returns this value disables the SAP as anmrouter-port.• send-queries:This command specifies whether to send IGMP QUERIES on the SAP.configure service vpls service-id sap sap-id igmp-snooping send-queriesThe no form of the command returns this value disables the sending of IGMPQUERIES.• version:This command specifies the version of all types of QUERIES generated by (theIGMP subsystem on) the SAP, when send-queries is enabled.configure service vpls service-id sap sap-id igmp-snooping version versionDefault value: IGMPv3If send-queries is not configured, the version command has no effect.The no form of this command removes the SAP-specific version for use in IGMPqueries• fast-leave:This command enables IGMP fast leave on this SAP.configure service vpls service-id sap sap-id igmp-snooping fast-leaveIf fast-leave is enabled, the multicast branch for this multicast channel on this SAPwill be deleted without “last-member-query-interval” waiting time and withoutIGMP query-report verification when an IGMP leave for a particular multicastchannel is received on this SAP.The no form of this command disables fast-leave.
