Operation Manual – Multicast Protocol
H3C S3610&S5510 Series Ethernet Switches
Chapter 3 MLD Snooping Configuration
3-16
Caution:
The source IPv6 address of MLD query messages may affect MLD querier election
within the segment.
3.6 Configuring an MLD Snooping Policy
3.6.1 Configuration Prerequisites
Before configuring an MLD Snooping policy, complete the following tasks:
z
Enable MLD Snooping in the VLAN
Before configuring an MLD Snooping policy, prepare the following data:
z
IPv6 ACL rule for IPv6 multicast group filtering
z
The maximum number of IPv6 multicast groups that can pass the ports
3.6.2 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 multicast programs available to different
users.
In an actual application, 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 configured ACL rule. If the port on which the report was heard can
join this IPv6 multicast group, the switch adds an entry for this port in the MLD
Snooping forwarding table; 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.
I. Configuring an IPv6 multicast group filter globally
Follow these steps to configure an IPv6 multicast group globally:
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.