Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document.
Note: Even the most advanced machine translation cannot match the quality of professional translators.
Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
IP Multicast Basics
This chapter describes fundamentals of IP multicast that you need to learn before configuring IP multicast features.
IP multicast enables point-to-multipoint data transmission. A multicast source sends only one copy of data, which is copied and distributed on network nodes as far from the multicast source as possible. The multicast data is sent only to the receivers that have requested the data.
In this chapter, the word "switch" or the switch icon shown in figures refer to routers with Layer 2 multicast functions enabled.