Enabling Dropping Unknown Ipv6 Multicast Data; Configuring Mld Report Suppression - HP 6125G Configuration Manual

Step
3. Enable IPv6 multicast source
port filtering.
NOTE:
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.

Enabling dropping unknown IPv6 multicast data

Unknown IPv6 multicast data refers to IPv6 multicast data for which no entries exist in the MLD snooping
forwarding table. When the switch receives such IPv6 multicast traffic, one of the following occurs:
When the function of dropping unknown IPv6 multicast data is disabled, the switch floods unknown
•
IPv6 multicast data in the VLAN to which the unknown IPv6 multicast data belongs.
• When the function of dropping unknown IPv6 multicast data is enabled, the switch forwards
unknown multicast data to its router ports instead of flooding it in the VLAN. If no router ports exist,
the switch drops the unknown multicast data.
Configuration guidelines
The configurations that you make in MLD snooping view and in VLAN view are mutually exclusive. After
this function is enabled in MLD snooping view, it cannot be enabled or disabled in VLAN view, and vice
versa.
Configuration procedure
To enable dropping unknown IPv6 multicast data globally:
Step
1. Enter system view.
2. Enter MLD-snooping view.
3. Enable dropping unknown
IPv6 multicast data.
To enable dropping unknown IPv6 multicast data in a VLAN:
Step
1. Enter system view.
2. Enter VLAN view.
3. Enable dropping unknown
IPv6 multicast data.

Configuring MLD report suppression

When a Layer 2 switch receives an MLD report from an IPv6 multicast group member, the Layer 2 switch
forwards the message to the Layer 3 device that directly connects to the Layer 2 switch. When multiple
members of an IPv6 multicast group are attached to the Layer 2 switch, the Layer 3 device might receive
duplicate MLD reports for the IPv6 multicast group from these members.
Command
mld-snooping source-deny
Command
system-view
mld-snooping
drop-unknown
Command
system-view
vlan vlan-id
mld-snooping drop-unknown
222
Remarks
Disabled by default.
Remarks
N/A
N/A
Disabled by default
Remarks
N/A
N/A
Disabled by default