Basic MLD snooping concepts

MLD snooping ports

As shown in Figure 43, MLD snooping runs on Switch A and Switch B, and Host A and Host C are receiver hosts in an IPv6 multicast group.

Figure 43: MLD snooping related ports

The following describes the ports involved in MLD snooping, as shown in Figure 43:


[NOTE: ]

NOTE:

When MLD snooping is enabled, all ports that receive IPv6 PIM hello messages or MLD general queries with a source IP address other than 0::0 are considered dynamic router ports.


Aging timers for dynamic ports in MLD snooping

The following are aging timers for dynamic ports in MLD snooping:


[NOTE: ]

NOTE:

In MLD snooping, only dynamic ports age out. Static ports never age out.