3Com 7750 Series Command Reference Manual

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3Com 7750 Series Command Reference Manual Manual pdf 569 page image

3Com Switch 7750 SeriesCommand Reference Guide – Multicast Chapter 4 IGMP Configuration Commands4-15Example# Set the querier to expire after 300 seconds.<3Com> system-viewSystem View: return to User View with Ctrl+Z.[3Com] interface Vlan-interface 10[3Com-Vlan-interface10] igmp timer other-querier-present 3004.1.15 igmp timer querySyntaxigmp timer query secondsundo igmp timer queryViewVLAN interface viewParameterseconds: Interval at which a router transmits IGMP query messages, in the range of 1to 65,535 seconds.DescriptionUse the igmp timer query command to configure the interval at which a routerinterface sends IGMP query messages.Use the undo igmp timer query command to restore the default value.By default, a router interface transmits IGMP query messages at the interval of 60seconds.A multicast router periodically sends out IGMP query messages to attached segmentsto find hosts that belong to different multicast groups. The query interval can bemodified according to the practical conditions of the network.For the related command, see igmp timer other-querier-present.Example# Configure to transmit the host-query message every 150 seconds viaVLAN-interface2.<3Com> system-viewSystem View: return to User View with Ctrl+Z.[3Com] interface Vlan-interface 2[3Com-Vlan-interface2] igmp timer query 150