No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search


To have a better experience, please upgrade your IE browser.


Configuration Guide - IP Multicast

CloudEngine 12800 and 12800E V200R005C10

This document describes the configurations of IP multicast, including IP multicast basics, IGMP, MLD, PIM (IPv4), PIM (IPv6), MSDP, multicast VPN, multicast route management (IPv4), multicast route management (IPv6), IGMP snooping, MLD snooping, static multicast MAC address, multicast VLAN, multicast network management.
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).
Bidir-PIM Application in a Single AS

Bidir-PIM Application in a Single AS

Figure 4-24 illustrates multicast service deployment on a large-scale network. The Interior Gateway Protocol (IGP) is running on the network, and all network segments are reachable. A multicast protocol is required on the network to allow multi-party video conferences among users connected to the network.

Figure 4-24 Bidir-PIM application in a single AS


As shown in Figure 4-24, HostA, HostB, HostC, and HostD need to join a multi-party video conference, and the entire PIM domain runs Bidir-PIM.

The network deployment is as follows:

  1. Enable Bidir-PIM on all routers in the PIM domain.

  2. Enable PIM-SM on all router interfaces so that they can set up PIM neighbor relationships.

  3. Select a router at the meeting point of multicast streams as the RP and configure the RP to serve Bidir-PIM. For example, RouterE in Figure 4-24 can act as the RP.

    Recommended RP deployment is as follows:

    • On small and medium networks, configure a static RP because the static RP is stable and has low requirements on device configurations.

      If a static RP is configured, all routers (including the RP) in the domain must be configured with the same RP information and multicast group range.

    • On large networks, deploy dynamic RP to improve reliability and facilitate maintenance.


    Do not use both static and dynamic RP configurations in the same PIM domain because this may cause inconsistent RP information on routers.

  4. Run IGMP between RouterA and HostA, RouterB and HostB, RouterC and HostC, and RouterD and HostD.

    All router interfaces on the same network segment must run the same IGMP version (IGMPv2 is recommended) and have the same parameter settings, such as the query intervals and timeout period of group memberships. If router interfaces run different IGMP versions or use different parameter settings, routers cannot maintain consistent IGMP group membership.

  5. After the configurations are complete, routers on the network set up a bidirectional RPT rooted at the RP, and the hosts can communicate in a video conference.


    To enable user hosts to receive multicast data stably, statically bind the multicast groups requested by user hosts to the interfaces directly connected to the user network segments.

Updated: 2019-04-20

Document ID: EDOC1100074724

Views: 40047

Downloads: 13

Average rating:
This Document Applies to these Products
Related Version
Related Documents
Previous Next