Configuration Guide MLD Snooping Configuration
MLD Snooping Configuration
Overview
MLD Snooping is the short form of Multicast Listener Discovery Snooping.
It is
designed to manage and control the transmission of IPv6 multicast stream on layer
2.
By running the MLD Snooping equipment and analyzing the MLD message received,
mapping relationship is established for port and MAC multicasting address, and such
relationship provides a basis for the transmission of IPv6 multicast data on layer 2.
When the MLD Snooping is not running, IPv6 multicast data message is broadcast
on layer 2; while after the switch places MLD Snooping into operation, the known
multicast data message of IPv6 multicast group will not be broadcast on layer 2, but
be exchanged to specified receiver(s) on layer 2.
Basic Concepts
Port Types
As shown in Figure 1, Router is connected with multicast source and with the switch
to run MLD Snooping, host A and host C become the hosts (or multicast listener) of
receiver.
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