HP A5500 EI Switch Series, Configuration Manual

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To do... Use the command... Remarks
Enter MLD snooping view mld-snooping —
Enable MLD report suppression report-aggregation
Optional
Enabled by default
CAUTION:
On an MLD snooping proxy, MLD membership reports are suppressed if the entries for the
corresponding groups exist in the forwarding table, regardless of whether the suppression function is
enabled or not.
Configuring the maximum number of multicast groups that a
port can join
The maximum number of IPv6 multicast groups that a port can join can limit the number of multicast
programs available to VOD users to control the traffic on the port.
Follow these steps configure the maximum number of IPv6 multicast groups that a port can join:
To do... Use the command... Remarks
Enter system view system-view —
Enter Ethernet interface view,
Layer 2 aggregate interface view,
or port group view
interface interface-type interface-
number
Required
Use either approach
port-group manual port-group-
name
Configure the maximum number
of IPv6 multicast groups that a
port can join
mld-snooping group-limit limit [
vlan vlan-list ]
Optional
1000 by default.
NOTE:
When you configure this maximum number, if the number of IPv6 multicast groups the port has joined
exceeds the configured maximum value, the system deletes all the forwarding entries for the port from
the MLD snooping forwarding table, and the hosts on this port join IPv6 multicast groups again until the
number of IPv6 multicast groups that the port joins reaches the maximum value. When the port joins an
IPv6 multicast group, if the port has been configured as a static member port, the system applies the
configurations to the port again. If you have configured simulated joining on the port, the system
establishes corresponding forwarding entry for the port after receiving a report from the simulated
member host.
Configuring IPv6 multicast group replacement
Under special circumstances, the number of IPv6 multicast groups that a switch or a port joins might
exceed the upper limit. In addition, in some specific applications, an IPv6 multicast group that the switch
newly joins must replace an existing IPv6 multicast group automatically. A typical example is channel
switching: To view a new channel, a user switches from the current IPv6 multicast group to the new one.