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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
21.2.9 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
receive multicast datagrams.
Example:
Switch(config)#ip igmp snooping vlan 2 L2-general-query-source 192.168.1.2
21.2.10 ip igmp snooping vlan
l2-general-querier-version
Command: ip igmp snooping vlan <vlanid> L2-general-query-version <version>
Function: Configure igmp snooping.
Parameters: vlan-id is the id of the VLAN, limited to <1-4094>. version is the version
number, limited to <1-3>.
Command Mode: Global mode.
Default: version 3.
Usage Guide: When the switch is connected to V1 and V2 capable environment, and for
VLAN which has source of layer 2 query configuration, the VLAN can be queried only if
the version number has been specified. This command is used to query the layer 2
version number.