HP A5500 SI Switch Series User Manual

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To address this situation, enable the IPv6 multicast group replacement function on the switch or a certain
port. When the number of IPv6 multicast groups that a switch or a port has joined exceeds the limit, one
of the following occurs:
• If the IPv6 multicast group replacement is not enabled, new MLD reports will be automatically
discarded.
• If the IPv6 multicast group replacement is enabled, the IPv6 multicast group that the switch or a port
newly joins automatically replaces an existing IPv6 multicast group that has the lowest IPv6
address.
Configuring IPv6 multicast group replacement globally
Follow these steps to configure IPv6 multicast group replacement globally:
To do... Use the command... Remarks
Enter system view system-view —
Enter MLD snooping view mld-snooping —
Enable IPv6 multicast group
replacement
overflow-replace [ vlan vlan-list ]
Required
Disabled by default
Configuring IPv6 multicast group replacement on a port or a group of ports
Follow these steps to configure IPv6 multicast group replacement on a port or a group of ports:
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
Enable IPv6 multicast group
replacement
mld-snooping overflow-replace [
vlan vlan-list ]
Required
Disabled by default
CAUTION:
Be sure to configure the maximum number of IPv6 multicast groups allowed on a port before enabling
IPv6 multicast group replacement. Otherwise, the IPv6 multicast
g
roup replacement functionality will not
take effect. For more information about the maximum number of IPv6 groups that a port can join, see
“Configuring the maximum number of m
ulticast groups that a port can join.”
Configuring 802.1p precedence for MLD messages
You can change 802.1p precedence of MLD messages so that they can be assigned higher forwarding
priority when congestion occurs on their outgoing ports.
Configuring 802.1p precedence for MLD messages globally
Follow these steps to configure 802.1p precedence for MLD messages globally:
To do... Use the command... Remarks
Enter system view system-view —

HP A5500 SI Switch Series Specifications

General

Brand	HP
Model	A5500 SI Switch Series
Category	Switch
Language	English