Enabling Dropping Unknown Ipv6 Multicast Data - HP A8800 Configuration Manual

In an application, when a user requests a multicast program, the user's host initiates an MLD report. After
receiving this report message, the router resolves the IPv6 multicast group address in the report and looks
up the ACL. If a match is found to permit the port that received the report can join this IPv6 multicast group,
the router creates an MLD snooping forwarding entry for the IPv6 multicast group and adds the port to
the entry. Otherwise, the router drops this report message, in which case, the IPv6 multicast data for the
IPv6 multicast group is not sent to this port, and the user cannot retrieve the program.
Configuring an IPv6 multicast group filter globally
Step
1. Enter system view.
2. Enter MLD snooping view.
3. Configure an IPv6 multicast
group filter.
Configuring an IPv6 multicast group filter on a port
Step
1. Enter system view.
2. Enter Layer 2 Ethernet
interface view or Layer 2
aggregate interface view or
enter port group view.
3. Configure an IPv6 multicast
group filter.

Enabling dropping unknown IPv6 multicast data

Unknown IPv6 multicast data refers to IPv6 multicast data for which no forwarding entries exist in the MLD
snooping forwarding table. When the router receives such IPv6 multicast traffic, one of the following
occurs:
• When the function of dropping unknown IPv6 multicast data is disabled, the router floods unknown
IPv6 multicast data in the VLAN that the data belongs to.
When the function of dropping unknown IPv6 multicast data is enabled, the router drops all
•
received unknown IPv6 multicast data.
To enable dropping unknown IPv6 multicast data in a VLAN:
Command
system-view
mld-snooping
group-policy acl6-number [ vlan
vlan-list ]
Command
system-view
•
Enter Layer 2 Ethernet interface
view or Layer 2 aggregate
interface view:
interface interface-type
interface-number
•
Enter port group view:
port-group manual
port-group-name
mld-snooping group-policy
acl6-number [ vlan vlan-list ]
302
Remarks
N/A
N/A
By default, no IPv6 group filter is
globally configured, and the hosts
in a VLAN can join any valid
multicast group.
Remarks
N/A
Use either command.
By default, no IPv6 group filter is
configured for the port, and the
hosts on the port can join any valid
IPv6 multicast group.