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S9300 and S9300E Series Switches Product Description

This document describes the positioning, characteristics, architecture, link features, service features, application scenarios, operation and maintenance functions, and technical specifications of the switch.
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IPTV Networking

IPTV Networking

The S9300&S9300E support IPTV network as outlined in Figure 3-3.

Figure 3-3  Network diagram of IPTV implementation

The IGMP snooping and multicast VLAN functions of the S9300&S9300E allow the switches to serve as the multicast duplication and control points at the access layer of a MAN to provide large-capacity multicast services. The multicast traffic can be copied within or across VLANs.

The DSLAM device acts as an IGMP proxy.

In the network diagram shown in Figure 3-3:

  • The Routers run the PIM protocol and act as either Designated Routers (DRs) or Backup Designated Routers (BDRs). A DR processes IGMP packets and copies video stream from the IPTV server.

  • By enabling IGMP snooping on the Switch to listen to IGMP packets, the Switch only send an IGMP request packet to join the multicast group. This establishes the multicast forwarding group. Static multicast groups can be created for popular multicast channels.

  • The Switch copy multicast data to the DSLAM based on the multicast forwarding table.

In addition, the S9300&S9300E support port prompt-join or prompt-leave, facilitating fast switching in IPTV services.

Updated: 2019-05-16

Document ID: EDOC1000027369

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