3 Configuring the Switch

Command Attributes

IGMP Status — When enabled, the switch will monitor network traffic to determine which hosts want to receive multicast traffic. This is also referred to as IGMP Snooping. (Default: Enabled)

Act as IGMP Querier — When enabled, the switch can serve as the Querier, which is responsible for asking hosts if they want to receive multicast traffic. (Default: Enabled)

IGMP Query Count — Sets the maximum number of queries issued for which there has been no response before the switch takes action to drop a client from the multicast group. (Range: 2-10; Default: 2)

IGMP Query Interval — Sets the frequency at which the switch sends IGMP host-query messages. (Range: 60-125 seconds; Default: 125)

IGMP Report Delay — Sets the time between receiving an IGMP Report for an IP multicast address on a port before the switch sends an IGMP Query out of that port and removes the entry from its list. (Range: 5-25 seconds; Default: 10)

IGMP Query Timeout — The time the switch waits after the previous querier stops before it considers the router port (i.e., the interface which had been receiving query packets) to have expired. (Range: 300-500 seconds; Default: 300)

IGMP Version — Sets the protocol version for compatibility with other devices on the network. (Range: 1-2; Default: 2)

Notes: 1. All systems on the subnet must support the same version.

2.Some attributes are only enabled for IGMPv2, including IGMP Report Delay and IGMP Query Timeout.

Web – Click IGMP Snooping, IGMP Configuration. Adjust the IGMP settings as required, and then click Apply. (The default settings are shown below.)

Figure 3-82. IGMP Configuration

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SMC Networks 100BASE-TX, 16 10BASE-T manual Igmp Configuration