3Com Switch 8800 Advanced Software V5 Configuration Guide

662 CHAPTER 45: MLD SNOOPING CONFIGURATION
■ Enable MLD Snooping in the VLAN or enable MLD on the desired VLAN
interface
Before configuring an IPv6 multicast group filtering policy, prepare the following
data:
■ IPv6 ACL rule for IPv6 multicast group filtering
■ The maximum number of IPv6 multicast groups that can pass the ports
■ Whether enable the IPv6 multicast group replacement function.
Configuring an IPv6
Multicast Group Filter
On a MLD Snooping-enabled switch, the configuration of an IPv6 multicast group
filter allows the service provider to define limits of different users’ access.
In an actual application of Video on Demand (VoD), when a user requests a
multicast program, the user’s host initiates an MLD report. Upon receiving this
report message, the switch checks the report against the ACL rule configured on
the receiving port. If this receiving port can join this IPv6 multicast group, the
switch adds this port to the MLD Snooping multicast group list; otherwise the
switch drops this report message. Any IPv6 multicast data that fails the ACL check
will not be sent to this port. In this way, the service provider can control the VoD
programs provided for multicast users.
Configuring an IPv6 multicast group filter globally
Follow these steps to configure an IPv6 multicast group globally:
Configuring an IPv6 multicast group filter on a port or a group ports
Follow these steps to configure an IPv6 multicast group filer on a port or a group
ports:
To do... Use the command... Remarks
Enter system view system-view -
Enter MLD Snooping view mld-snooping -
Configure an IPv6 multicast
group filter
group-policy acl6-number [
vlan vlan-list ]
Required
No IPv6 filter configured by
default, namely hosts can join
any IPv6 multicast group
To do... Use the command... Remarks
Enter system view system-view -
Enter the
corresponding
view
Enter Ethernet
interface view
interface interface-type
interface-number
Use either command
Enter port group view port-group { manual
port-group-name |
aggregation agg-id }
Configure an IPv6 multicast group filter mld-snooping
group-policy
acl6-number [ vlan
vlan-list ]
Required
No IPv6 filter
configured by default,
namely hosts can join
any IPv6 multicast
group