Enabling Dropping Unknown Ipv6 Multicast Data; Enabling Mld Report Suppression; Setting The Maximum Number Of Ipv6 Multicast Groups On A Port - HP FlexFabric 5950 series Configuration Manual

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. This feature enables the device only to forward unknown IPv6
multicast data to the router port. If the device does not have a router port, unknown IPv6 multicast
data will be dropped.
If you do not enable this feature, the unknown IPv6 multicast data is flooded in the VLAN to which the
data belongs.
To enable dropping unknown IPv6 multicast data for a VLAN or VSI:
Step
1. Enter system view.
2. Enter VLAN view or VSI
view.
3. Enable dropping unknown
IPv6 multicast data for the
VLAN or VSI.

Enabling MLD report suppression

This feature enables the Layer 2 device to forward only the first MLD report for an IPv6 multicast
group to its directly connected Layer 3 device. Other reports for the same group in the same query
interval are discarded. Use this feature to reduce the multicast traffic.
To enable MLD report suppression:
Step
1. Enter system view.
2. Enter MLD-snooping view.
3. Enable MLD report
suppression.
Setting the maximum number of IPv6 multicast groups on a
port
You can set the maximum number of IPv6 multicast groups on a port to regulate the port traffic.
Configuration restrictions and guidelines
When you set the maximum number of IPv6 multicast groups on a port, follow these restrictions and
guidelines:
•
This configuration takes effect only on the IPv6 multicast groups that the port joins dynamically.
•
If the number of IPv6 multicast groups on a port exceeds the limit, the system removes all the
forwarding entries related to that port. In this case, the receiver hosts attached to that port can
join IPv6 multicast groups again before the number of IPv6 multicast groups on the port reaches
the limit.
Command
system-view
•
Enter VLAN view:
vlan vlan-id
•
Enter VSI view:
vsi vsi-name
mld-snooping drop-unknown
Command
system-view
mld-snooping
report-aggregation
304
Remarks
N/A
N/A
By default, dropping unknown
IPv6 multicast data is disabled,
and unknown IPv6 multicast data
is flooded.
Remarks
N/A
N/A
By default, MLD report
suppression is enabled.