АМАТЕК AN-SGM28P24-400 [214/322] Mld snooping processing

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has become the most popular mode of communication in order to improve resource utilization。

switch implements the function of MLD SNOOPING for multicast application service. MLD

SNOOPING monitors MLD packets on the network to realize dynamic learning of IPV6 multicast

MAC addresses。

This chapter describes the concept and configuration of MLD SNOOPING, including the

following contents：

 MLD SNOOPING introduce

 MLD SNOOPING configuration

 MLD SNOOPING configuration example

16.1 MLD SNOOPING introduce

Traditional network in a subnet multicast packets as broadcast processing, so easy to make

network traffic, causing network congestion. When the switch is implemented on MLD

SNOOPING, MLD SNOOPING can learn IPV6 dynamic multicast MAC address, to maintain the

output port list IPV6 multicast MAC address, the multicast data flow only to the output port to

send, it can reduce the network traffic。

The main contents of this section are as follows：

 MLD SNOOPING processing

 Second layer dynamic multicast

 Join a group

 Leave a group

16.1.1 MLD SNOOPING processing

MLD SNOOPING is a two layer network protocol, the MLD protocol packets through the

switch monitoring, according to the receiving port these MLD protocol package, VLAN ID and

multicast address to maintain a multicast group, and then forwarded these MLD protocol. Only

multicast ports can be added to receive multicast data streams; thus, the network traffic is reduced