256
Default: This function is disabled by default.
Usage Guide: Enable immediate-leave function of the IGMP Snooping in specified VLAN;
the―no‖ form of this command disables the immediate-leave function of the IGMP
Snooping.
Example: Enable the IGMP fast leave function for VLAN 100.
Switch(config)#ip igmp snooping vlan 100 immediate-leave
24.2.7 ip igmp snooping vlan l2-general-querier
Command: ip igmp snooping vlan < vlan-id > l2-general-querier
no ip igmp snooping vlan < vlan-id > l2-general-querier
Function: Set this VLAN to layer 2 general querier.
Parameter: vlan-id: is ID number of the VLAN, ranging between <1-4094>.
Command Mode: Global mode
Default: VLAN is not as the IGMP Snooping layer 2 general querier.
Usage Guide: It is recommended to configure a layer 2 general querier on a segment.
IGMP Snooping function will be enabled by this command if not enabled on this VLAN
before configuring this command, IGMP Snooping function will not be disabled when
disabling the layer 2 general querier function. This command is mainly for sending general
queries regularly to help switches within this segment learn mrouter ports.
Comment: There are three paths IGMP snooping learn mrouter
1 Port receives the IGMP query messages
2 Port receives multicast protocol packets, and supports DVMRP, PIM
3 Static configured port
24.2.8 ip igmp snooping vlan l2-general-querier-source
Command: ip igmp snooping vlan <vlanid> L2-general-query-source <A.B.C.D>
no ip igmp snooping vlan <vlanid> L2-general-query-source
Function: Configure source address of query of igmp snooping
Parameters: <vlanid>: the id of the VLAN, with limitation to <1-4094>. <A.B.C.D> is the
source address of the query operation.
Command Mode: Global mode.
Default: 0.0.0.0
Usage Guide: It is not supported on Windows 2000/XP to query with the source address
as 0.0.0.0. So the layer 2 query source address configuration does not function. The client
will stop sending requesting datagrams after one is sent. And after a while, it can not
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