ZXR10 8900E series Core Switch Product Description
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multicast control policy to original multicast technology and so realizes control on
accessed multicast services.
ZXR10 8900E series switches support complete controllable multicast features. By
supporting the functions including IGMP V1/V2/V3, IGMP Snooping, IGMP Proxy, IGMP
Fast-leave, multicast VLAN, CAC (Channel Access Control) and CDR (Call Detail
Record), they can realize precise control on multicast users.
In commercial IPTV network, controllable multicast technology integrated with current
network authentication technology can realize user access authentication and user
multicast authentication, enabling controllable multicast service access. CAC, CDR
together with SMS system can provide multicast service management and control
capability for users, facilitating the users to provide IPTV service. Multicast VLAN
together with QoS provides complete multicast data stream control measures from
multicast source to the receiver, effectively ensuring multicast quality. IGMP Snooping
technology can record multicast data transmission from the multicast source, traffic and
destination address. IGMP fastleave can strictly control and record a specific receiver
joining and leaving a specific multicast group to enhance multicast management
capability and provide technical support for IPTV billing. Multicast VLAN and IGMP
Snooping can prevent flooding of multicast messages in L2 network, isolate multicast
users and guarantee multicast information security.
Besides, the equipment provides the following controllable multicast management
functions to facilitate users to perform management on IPTV channel and subscribers,
including channel access control, channel management, suite management, preview
configuration function, preview template management, CDR function and unified network
management via MIB.
The procedure of IPTV user access control is generally as follows:
1.
IPTV users have four kinds of rights: view, preview, query and reject.
2.
The operator creates static channel table or suite table (can be regarded as
multicast group), creates static port principle (CAC) table, and applies the channel or
suite to the principle. In this way, the view function of some channels, preview
function of some channels and query function of some channels are enabled on the
port.
3.
The user client sends a message to report, leave or query a multicast channel of
IGMP from the local port; IPTV module searches the matching CAC principle
according to the user’s port and VLAN and authenticates the rights of the channel
applied for by the user. The authentication method is to search the channel rights
(view, preview, query, reject) that has been configured in the principle and return the
result to IGMP Snooping for further processing. The processing methods of IGMP
Snooping for different rights are as follows to make the IPTV service management
controllable in the network layer: view and preview right: add the user’s port in the
multicast forwarding table; query right: broadcast the query message in the user’s
VLAN.
Содержание ZXR10 8900E series
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