D-Link DXS-3600 Series Reference Manual page 535

DXS-3600 Series Layer 3 Managed 10Gigabit Ethernet Switch CLI Reference Guide
Usage Guideline
The command is only available for VLAN interface configuration. The ip igmp snooping fast-leave
command allows IGMP membership to be removed from a port right on 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)#
44-5 ip igmp snooping ignore-topology-change-notification
This command is used to make IGMP snooping to ignore STP changes and not to send an STP-triggered
query on the interface. Use the no command to make IGMP snooping not to ignore STP changes and
send an STP triggered query on the specified interface.
ip igmp snooping ignore-topology-change-notification
no ip igmp snooping ignore-topology-change-notification
Parameters
None.
Default
By default, this option is disabled.
Command Mode
Interface 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)#
44-6 ip igmp snooping last-member-query-interval
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