D-Link DXS-3400 Emulator - Page 509
ip igmp snooping last-member-query-interval
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DXS-3400 Series Lite Layer 3 Stackable 10GbE Managed Switch CLI Reference Guide Command Mode VLAN Configuration Mode. Command Default Level Level: 12. Usage Guideline This command is only available for VLAN interface configuration. An IGMP snooping switch is aware of link-layer topology changes caused by the Spanning Tree operation. When a port is enabled or disabled by the Spanning Tree, a General Query will be sent on all active non-router ports in order to reduce network convergence time. Use this command to make IGMP snooping ignore the topology change case. Example This example shows how to enable IGMP snooping ignoring topology change on VLAN 1. Switch# configure terminal Switch(config)# vlan 1 Switch(config-vlan)# ip igmp snooping ignore-topology-change-notification Switch(config-vlan)# 48-8 ip igmp snooping last-member-query-interval This command is used to configure the interval at which the IGMP snooping querier sends IGMP group-specific or group-source-specific (channel) query messages. Use the no form of this 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 VLAN 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. 505
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