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2022

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Multicast Technology of Ethernet Switch Telecom/Datacom Systems


Ethernet Switch Telecom/Datacom Systems often involves point-to-multipoint communication in network applications, especially in multimedia applications. Multicast technology is a common way to achieve point-to-multipoint communication. The traditional point-to-multipoint communication method , not only wastes bandwidth, but also tends to cause delay and congestion, and even generate some useless broadcast packets, which will have a negative impact on system performance.

Ethernet Switch Telecom/Datacom Systems

In the multicast technology, the sender only needs to send the message once, and the router and Ethernet Switch Telecom/Datacom Systems will automatically copy the message to each terminal that actually wants to receive the message. This method effectively solves the problem of point-to-multipoint transmission. It should be noted that the realization of multicast at the network layer is relatively complicated, and a detailed analysis of the multicast functions of the third layer and the second layer is required, which will be applied To network topology technology and GMRP technology. GMRP technology is the premise of implementing multicast technology. If you want to implement multicast in several switching domains separated by routers, you need to use multicast routing protocol and IGMP. For example, as a core switching network, a Layer 3 switch supports multicast routing protocols and IGMP while supporting GMRP.

Ethernet Switch Telecom/Datacom Systems

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