Configuring A Vlan Tag For Query Messages - 3Com 4210 9-Port Configuration Manual

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When an Ethernet port is configured as a simulated member host, the switch sends an IGMP report

through this port. Meanwhile, the switch sends the same IGMP report to itself and establishes a

corresponding IGMP entry based on this report.

When receiving an IGMP general query, the simulated host responds with an IGMP report.

Meanwhile, the switch sends the same IGMP report to itself to ensure that the IGMP entry does not

When the simulated joining function is disabled on an Ethernet port, the simulated host sends an

IGMP leave message.

Therefore, to ensure that IGMP entries will not age out, the port must receive IGMP general queries

periodically.

Table 2-16 Configure a port as a simulated group member

Enter system view

Enter Ethernet port view

Configure the current port as a

simulated multicast group

Before configuring a simulated host, enable IGMP Snooping in VLAN view first.

The port to be configured must belong to the specified VLAN; otherwise the configuration does not

take effect.

You can use the source-ip source-address command to specify a multicast source address that

the port will join as a simulated host. This configuration takes effect when IGMPv3 Snooping is

enabled in the VLAN.