Configuring Ipv6 Multicast Source Port Filtering; Configuring Mld Report Suppression - H3C S5120-EI Series Operation Manual

Configuring IPv6 Multicast Source Port Filtering

With the IPv6 multicast source port filtering feature enabled on a port, the port can be connected with
IPv6 multicast receivers only rather than with multicast sources, because the port will block all IPv6
multicast data packets while it permits multicast protocol packets to pass.
If this feature is disabled on a port, the port can be connected with both multicast sources and IPv6
multicast receivers.
Configuring IPv6 multicast source port filtering globally
Follow these steps to configure IPv6 multicast source port filtering:
To do...
Enter system view
Enter MLD Snooping view
Enable IPv6 multicast source
port filtering
Configuring IPv6 multicast source port filtering on a port or a group of ports
Follow these steps to configure IPv6 multicast source port filtering on a port or a group of ports:
To do...
Enter system view
Enter Ethernet port view or port
group view
Enable IPv6 multicast source
port filtering
Some models of devices, when enabled to filter IPv6 multicast data based on the source ports, are
automatically enabled to filter IPv4 multicast data based on the source ports.

Configuring MLD Report Suppression

When a Layer 2 device receives an MLD report from an IPv6 multicast group member, the Layer 2
device forwards the message to the Layer 3 device directly connected with it. Thus, when multiple
members belonging to an IPv6 multicast group exist on the Layer 2 device, the Layer 3 device directly
connected with it will receive duplicate MLD reports from these members.
With the MLD report suppression function enabled, within a query interval, the Layer 2 device forwards
only the first MLD report of an IPv6 group to the Layer 3 device and will not forward the subsequent
Use the command...
system-view
mld-snooping
source-deny port interface-list
Use the command...
system-view
interface interface-type
interface-number
port-group manual
port-group-name
mld-snooping source-deny
1-15
Remarks
—
—
Required
Disabled by default
Remarks
—
Required
Use either approach
Required
Disabled by default