D-Link DGS-1510-20 User Manual - Page 285
Usage Guideline, Example, 4 ip igmp snooping last-member-query-interval, Parameters, Default,
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DGS-1510 Series Gigabit Ethernet SmartPro Switch CLI Reference Guide Level: 12. Usage Guideline The command is only available for VLAN interface configuration. The ip igmp snooping fast-leave command allows IGMP membership to be immediately removed from a port when receiving the leave message without using the group specific or group-source specific query mechanism. Example This example shows how to enable IGMP snooping fast-leave on VLAN 1. Switch# configure terminal Switch(config)# vlan 1 Switch(config-vlan)# ip igmp snooping fast-leave Switch(config-vlan)# 32-4 ip igmp snooping last-member-query-interval This command is used to configure the interval at which the IGMP snooping querier sends IGMP groupspecific or group-source-specific (channel) query messages. Use the no form of the command to revert to the default setting. ip igmp snooping last-member-query-interval SECONDS no ip igmp snooping last-member-query-interval Parameters SECONDS Specifies the maximum amount of time between group-specific query messages, including those sent in response to leave-group messages. The range of this value is 1 to 25. Default By default, this value is 1 second. Command Mode Interface Configuration Mode. Command Default Level Level: 12. Usage Guideline The command is only available for VLAN interface configuration. On receiving an IGMP leave message, the IGMP snooping querier will assume that there are no local members on the interface if there are no reports received after the response time. Users can lower this interval to reduce the amount of time it takes a switch to detect the loss of the last member of a group. Example This example shows how to configure the last member query interval time to be 3 seconds. Switch# configure terminal Switch(config)# vlan 1000 Switch(config-vlan)# ip igmp snooping last-member-query-interval 3 Switch(config-vlan)# 282
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