Overview Of Controllable Multicast; Basic Principle - Huawei Quidway S2700 Series Configuration Manual

Quidway S2700 Series Ethernet Switches
Configuration Guide - Multicast

3.1 Overview of Controllable Multicast

Traditional multicast services are uncontrollable. Users running traditional multicast need to
send IGMP Report messages to join related multicast groups, and then receive multicast packets
of the groups. With the development of IPTV services, uncontrollable multicast services cannot
meet the operation requirements. IPTV services aim to make prohibits. Users can watch a
program (that is, join a multicast group) only after they pay fees. If users are not authenticated,
the requirements of IPTV operation cannot be met. Therefore, controllable multicast is
developed to control the authorities of users to join a certain multicast group. When a user
requests to join a multicast group, the Switch must authenticate the request, and reject illegal or
unauthorized requests.

3.2 Basic Principle

Controllable Multicast Mechanism Provided by the S-switch
The S2700 provides the controllable multicast mechanism based on VLANs. Through multicast
profiles, the S2700 controls the authorities of users to join related multicast groups. To flexibly
configure the rights of users to join related multicast groups, the S2700 provides control
mechanisms of three levels, that is, multicast group, multicast group list, and multicast profile,
as shown in
Figure 3-1 Hierarchical control mechanisms of controllable multicast
Multicast Group
A multicast group corresponds to a multicast address such as 224.1.1.1. A multicast group can
be regarded as a channel or program of IPTV.
Issue 01 (2011-07-15)
NOTE
The S2700SI does not support controllable multicast.
Figure 3-1.
Multicast Group
Multicast
Profile P1
Multicast Group
Multicast
Profile P2
Multicast Group
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Multicast Group G1
List L1
Multicast Group G2
Multicast Group G3
Multicast Group G4
List L2
Multicast Group G5
List L1
Multicast Group GN
3 Controllable Multicast Configuration
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