PLANET WGSW-50040 - Manual (Page 303)

Commands for Security Function Chapter 6 Commands for TACACS+
command, MLD snooping is not enabled on this VLAN, this command will no be executed. When
disabling the L2 general querier function, MLD snooping will not be disabled along with it. Main
function of this command is sending general queries periodically to help the switches within this
segment learn mrouter port.
Comment:
There are three ways to learn mrouter port in MLD Snooping:
1. The port which receives MLD query messages
2. The port which receives multicast protocol packets and support PIM
3. The port statically configured.
Example:
Set VLAN 100 to L2 general querier.
Switch (config)# ipv6 mld snooping vlan 100 l2-general-querier
19.1.8 ipv6 mld snooping vlan limit
Command:
ipv6 mld snooping vlan < vlan-id > limit {group <g_limit> | source <s_limit>}
no ipv6 mld snooping vlan < vlan-id > limit
Function:
Configure number of groups the MLD snooping can join and the maximum number of sources in
each group.
Parameter:
vlan-id: VLAN ID, the valid range is <1-4094>
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, MLD 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 MLD is in operation, please make this configuration in accordance with the MLD
configuration as possible.