PLANET XGS3-24040 - Manual (Page 654)

XGS3 Command Guide
38-83
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
38.10.9 ip igmp snooping vlan
l2-general-querier-version
Command: ip igmp snooping vlan L2-general-query-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.
Example:
Switch(config)#ip igmp snooping vlan 2 L2-general-query-version 2
38.10.10 ip igmp snooping vlan limit
Command: ip igmp snooping vlan limit {group | source }
no ip igmp snooping vlan limit
Function: Configure the max group count of vlan and the max source count of every group. The “no ip
igmp snooping vlan limit” command cancels this configuration.
Parameter: is the VLAN number.
g_limit：<1-65535>, max number of groups joined.
s_limit：<1-65535>, max number of source entries in each group, consisting of include
source and exclude source.
Command mode: Global Mode.
Default: Maximum 50 groups by default, with each group capable with 40 source entries.
Usage Guide: When number of joined group reaches the limit, new group requesting for
joining in will be rejected for preventing hostile attacks. To use this command, IGMP snooping must be
enabled on vlan. The “no” form of this command restores the default other than set to “no limit”. For the
safety considerations, this command will not be configured to “no limit”. It is recommended to use default
value and if layer 3 IGMP is in operation, please make this configuration in accordance with the IGMP
configuration as possible.
Example:
Switch(config)#ip igmp snooping vlan 2 limit group 300