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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 Rosen MVPN

Concepts Related to Rosen MVPN

  • MD

    A multicast domain (MD) is composed of VPN instances on PEs that can receive and send multicast data between each other. A PE VPN instance can belong only to one MD. Different VPN instances belong to different MDs. An MD serves a specific VPN. All private multicast data transmitted in the VPN is transmitted in the MD.

  • Share-group

    A share-group is a group that all PE VPN instances in the same MD should join. A VPN instance can join a maximum of one share-group.

  • Share-MDT

    A share-multicast distribution tree (share-MDT) transmits PIM protocol packets and data packets between PEs in the same VPN instance. A share-MDT is built when PIM C-instances join share-groups.

  • MTI

    A multicast tunnel interface (MTI) is the outbound or inbound interface of a multicast tunnel (MT) or an MD. MTIs are used to transmit VPN data between local and remote PEs.

    An MTI is regarded as a channel through which the public network instance and a VPN instance communicate. An MTI connects a PE to an MT on a shared network segment and sets up PIM neighbor relationships between PE VPN instances in the same MD.

  • Switch-group

    A switch-group is a group to which all VPN data receivers' PEs join. Switch-groups are the basis of switch-MDT setup.

  • Switch-MDT

    A switch-multicast distribution tree (switch-MDT) implements on-demand multicast data transmission, so a switch-MDT transmits multicast data to only PEs that require the multicast data. A switch-MDT can be built after a share-MDT is set up and VPN data receivers' PEs join a switch-group.

Updated: 2019-01-03

Document ID: EDOC1100055119

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