3com S7906E Guide De Référence

 

1-12 

Ethernet interface view, Layer 2 aggregate interface view, port group view 

2: System level 

limit: Maximum number of IPv6 multicast groups that can be joined on a port. The value is in the range 

1 to 512.  

vlan vlan-list: Defines one or multiple VLANs. You can provide up to 10 VLAN lists, by each of which 

you can specify an individual VLAN in the form of vlan-id, or a VLAN range in the form of start-vlan-id to 

end-vlan-id, where the end VLAN ID must be greater than the start VLAN ID. The effective range of a 

VLAN ID is 1 to 4094.  

Use the mld-snooping group-limit command to configure the maximum number of IPv6 multicast 

groups that can be joined on a port.  

Use the undo mld-snooping group-limit command to restore the default setting.  

By default, maximum number of IPv6 multicast groups that can be joined on a port is 512. 

Note that:  

z 

You can also use the mld group-limit command to limit the number of IPv6 multicast groups that 

can be joined on an port. If you configure a limit of the number of groups for ports in a VLAN while 

you have configured a limit of the number of groups for the VLAN interface, or vice versa, this may 

cause inconsistencies between Layer 2 and Layer 3 table entries. Therefore, it is recommended to 

configure a limit of the number of groups only on the VLAN interface.   

z 

If you do not specify any VLAN when using this command in Ethernet porti view or Layer 2 

aggregate port view, the command will take effect for all VLANs the port belongs to; if you specify a 

VLAN or multiple VLANs, the command will take effect only if the port belongs to the specified 

VLAN(s).  

z 

If you do not specify any VLAN when using this command in port group view, the command will 

take effect on all the ports in this group; if you specify a VLAN or multiple VLANs, the command will 

take effect only on those ports in this group that belong to the specified VLAN(s).  

Related commands: mld group-limit in MLD Commands in the IP Multicast Volume. 

# Specify to allow a maximum of 10 IPv6 multicast groups to be joined on Ethernet 2/0/1 in VLAN 2.  

<Sysname> system-view 

[Sysname] interface ethernet 2/0/1 

[Sysname-Ethernet2/0/1] mld-snooping group-limit 10 vlan 2 

mld-snooping group-policy acl6-number [ vlan vlan-list ] 

undo mld-snooping group-policy [ vlan vlan-list ]