Enabling Ipv6 Multicast Group Replacement; Enabling Host Tracking - HP FlexFabric 5950 series Configuration Manual

Configuration procedure
To set the maximum number of IPv6 multicast groups on a port:
Step
1. Enter system view.
2. Enter Layer 2 Ethernet
interface view or Layer 2
aggregate interface view.
3. Set the maximum number of
IPv6 multicast groups on the
port.

Enabling IPv6 multicast group replacement

This feature enables the device to replace an existing group with a newly joined group when the
number of groups exceeds the upper limit. This feature is typically used in the channel switching
application. Without this feature, the device discards MLD reports for new groups, and the user
cannot change to the new channel.
Configuration restrictions and guidelines
When you enable IPv6 multicast group replacement, follow these restrictions and guidelines:
•
This configuration takes effect only on the multicast groups that the port joins dynamically.
•
You can enable this feature globally for all ports in MLD-snooping view or for a port in interface
view. For a port, the port-specific configuration takes priority over the global configuration.
Enabling IPv6 multicast group replacement globally
Step
1. Enter system view.
2. Enter MLD-snooping view.
3. Enable IPv6 multicast group
replacement globally.
Enabling IPv6 multicast group replacement on a port
Step
1. Enter system view.
2. Enter Layer 2 Ethernet
interface view or Layer 2
aggregate interface view.
3. Enable IPv6 multicast group
replacement on the port.

Enabling host tracking

This feature enables the device to record information about member hosts that are receiving IPv6
multicast data. The information includes IPv6 addresses of the hosts, length of time elapsed since
the hosts joined IPv6 multicast groups, and remaining timeout time for the hosts. This feature
facilitates monitoring and managing member hosts.
Command
system-view
interface interface-type interface-
number
mld-snooping group-limit limit
[ vlan vlan-list ]
Command
system-view
mld-snooping
overflow-replace [ vlan vlan-list ]
Command
system-view
interface interface-type interface-
number
mld-snooping overflow-replace
[ vlan vlan-list ]
305
Remarks
N/A
N/A
By default, no limit is placed on
the maximum number of IPv6
multicast groups on a port.
Remarks
N/A
N/A
By default, IPv6 multicast group
replacement is disabled globally.
Remarks
N/A
N/A
By default, IPv6 multicast group
replacement is disabled on a port.