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Configuring static IPv6 multicast MAC address entries
In Layer 2 IPv6 multicast, IPv6 multicast MAC address entries can be dynamically created through
Layer 2 multicast protocols (such as MLD snooping). You can also manually configure static IPv6
multicast MAC address entries by binding IPv6 multicast MAC addresses and ports to control the
destination ports of the IPv6 multicast data.
Configuration restrictions and guidelines
When you configure a static IPv6 multicast MAC address entry, follow these restrictions and
guidelines:
•
You do not need to enable IPv6 multicast routing before this configuration.
•
You must specify an unused IPv6 multicast MAC address when configuring a static IPv6
multicast MAC address entry. An IPv6 multicast MAC address is a MAC address in which the
least significant bit of the most significant octet is 1.
•
You can configure IPv6 static multicast MAC address entries on the specified interface in
system view, or on the current interface in interface view.
Configuring a static IPv6 multicast MAC address entry in system view
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Configure a static IPv6
multicast MAC address
entry.
mac-address
multicast mac-address
interface interface-list
vlan vlan-id
By default, no static IPv6
multicast MAC address entries
exist.
For more information about this
command, see
IP Multicast
Command Reference
.
Configuring a static IPv6 multicast MAC address entry in interface view
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter Layer 2 Ethernet
interface or Layer 2
aggregate interface view.
interface interface-type
interface-number
N/A
3.
Configure a static IPv6
multicast MAC address
entry.
mac-address
multicast mac-address
vlan vlan-id
By default, no static multicast
MAC address entries exist.
For more information about this
command, see
IP Multicast
Command Reference
.
Setting the MLD last listener query interval
A receiver host starts a report delay timer for an IPv6 multicast group when it receives an MLD
multicast-address-specific query for the group. This timer is set to a random value in the range of 0 to
the maximum response time advertised in the query. When the timer value decreases to 0, the host
sends an MLD report to the group.
The MLD last listener query interval defines the maximum response time advertised in MLD
multicast-address-specific queries. Set an appropriate value for the MLD last listener query interval
to speed up hosts' responses to MLD multicast-address-specific queries and avoid MLD report traffic
bursts.