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NE20E-S V800R010C10SPC500 Feature Description - IP Multicast 01

This is NE20E-S V800R010C10SPC500 Feature Description - IP Multicast

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Concepts Related to Multicast

Concepts Related to Multicast

Multicast Group

A multicast group consists of a group of receivers that require the same data stream. A multicast group uses an IP multicast address identifier. A host that joins a multicast group becomes a member of the group and can identify and receive IP packets that have the IP multicast address as the destination address.

Multicast Source

A multicast source sends IP packets that carry multicast destination addresses.

  • A multicast source can simultaneously send data to multiple multicast groups.

  • Multiple multicast sources can simultaneously send data to a same multicast group.

Multicast Group Member

A member of a multicast group is a host that requires IP packets from the multicast group. Hosts can choose to join or leave a multicast group, so the members of a multicast group are dynamic. The members can be located anywhere on a network.

A multicast source is generally not a receiver or a member of a multicast group.

Multicast Router

A router that supports the multicast feature is called a multicast router.

A multicast router implements the following functions:

  • Manages group members on the leaf segment networks that connect to users.

  • Routes and forwards multicast packets.

Multicast Distribution Tree

A multicast distribution tree (MDT) is a tree-shaped packet distribution path along which multicast traffic is sent to multicast receivers.

Updated: 2019-01-03

Document ID: EDOC1100055119

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