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NE40E V800R010C10SPC500 Configuration Guide - IP Multicast 01

This is NE40E V800R010C10SPC500 Configuration Guide - IP Multicast
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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).
Overview of MBGP

Overview of MBGP

MBGP is a multiprotocol extension to BGP.

If a multicast source and its receivers are located in different ASs, a multicast forwarding tree must be built across the ASs. MP-BGP can be used to transmit routing information between ASs to implement inter-AS multicast services.

MP-BGP is an enhanced BGP. BGP applies only to unicast routing. By adding capabilities to BGP, MP-BGP allows BGP to provide routing information for multiple routing protocols, including multicast.

  • MP-BGP maintains both unicast routes and multicast routes, stores them in different routing tables, and keeps unicast routing information and multicast routing information separate from each other.

  • MP-BGP builds a unicast routing topology different from a multicast routing topology.

  • Most unicast routing policies and configuration methods supported by BGP can be applied to multicast, and MP-BGP maintains unicast routes different from multicast routes based on the routing policies.

MP-BGP applied to multicast is called MBGP.

NOTE:

For more information about MP-BGP, see the HUAWEI NetEngine40E Universal Service Router Configuration Guide - IP Routing.

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Updated: 2019-01-03

Document ID: EDOC1100055017

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