Huawei Quidway S3900 Series User Manual

Operation Manual – Multicast Protocol
Quidway S3900 Series Ethernet Switches-Release 1510 Chapter 1 Multicast Overview
Huawei Technologies Proprietary
1-5
II. Application of multicast
The multicast technology effectively addresses the issue of point-to-multipoint data
transmission. By enabling high-efficiency point-to-multipoint data transmission, over an
IP network, multicast greatly saves network bandwidth and reduces network load.
Multicast provides the following applications:
z Applications of multimedia and flow media, such as Web TV, Web radio, and
real-time video/audio conferencing.
z Communication for training and cooperative operations, such as remote
education.
z Database and financial applications (stock), and so on.
z Any point-to-multiple-point data application.
1.2 Multicast Architecture
The purpose of IP multicast is to transmit information from a multicast source to
receivers in the multicast mode and to satisfy information requirements of receivers.
You should be concerned about:
z Host registration: What receivers reside on the network?
z Technologies of discovering a multicast source: Which multicast source should the
receivers receive information from?
z Multicast addressing mechanism: Where should the multicast source transports
information to?
z Multicast routing: How is information transported?
IP multicast is a kind of peer-to-peer service. Based on the protocol layer sequence
from bottom to top, the multicast mechanism contains addressing mechanism, host
registration, multicast routing, and multicast application, as shown in
Figure 1-4:
Multic as t
route
Host
registration
Addressing
mechanism
Multicast
application
Host
registration
Addressing
mechanism
……
……
Multicast
source
(Host)
Multicast router
Receiver
(Host)
Multicast
route
Host
registration
Addressing
mechanism
Multicast router
Multicast
application
Host
registration
Addressing
mechanism
……
Multic as t
route
Host
registration
Addressing
mechanism
Multicast
application
Host
registration
Addressing
mechanism
……
……
Multicast
source
(Host)
Multicast router
Receiver
(Host)
Multicast
route
Host
registration
Addressing
mechanism
Multicast router
Multicast
application
Host
registration
Addressing
mechanism
……
Figure 1-4 Architecture of the multicast mechanism
The multicast addressing mechanism involves the planning of multicast addresses.
Host registration and multicast routing are implemented based on the IP multicast
protocol. Multicast application software is not described in this chapter.

Huawei Quidway S3900 Series Specifications

General

Brand	Huawei
Model	Quidway S3900 Series
Category	Switch
Language	English