FSAP 9800 Technical Manual
FSAP 9800 controlled multicast processes the flow following
IGMP proxy standards. It decides whether to add a user port
to one multicast group according to the information such as
the user port, multicast group address, user
address, and
user
address, to fulfill the objective of multicast authoriza-
tion.
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Multicast package
Multicast package is channel package. Each package is a group
of channel programs. Each program in the package is assigned
with the right of Permit or Preview. Any channel can be con-
figured in a package and can be assigned with rights indepen-
dently.
The package is applied on a specific port, affecting the multi-
cast channel access right of the user port. One user port can
use multiple packages. If the rights of the same channel in dif-
ferent packages are different, the rights are combined based
on the principal of using the highest right of all rights. The
right level follows the sequence of Permit - Preview - Reject.
Permit has the highest right.
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CAC is used to control the range of multicast channels accessed
by a subscriber. The subscriber has the right to watch pur-
chased multicast channels, preview some channels, and refuse
to access other channels.
In addition, the preview attributes of channels involve the fol-
lowing:
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Maximum preview times during the resetting interval
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Maximum time period of each preview
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Interval between two preview times
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Preview
The preview channel stands for a special right in subscribers
channel access, allowing subscribers to implement manage-
able view without subscribing some programs. The preview
module provides preview management based on ports. It es-
tablishes and maintains the preview program table of each port
subscriber.
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CDR saves and reports the multicast records. The multicast
records are generated by the CAC and preview modules. When
a multicast record needs to be generated, the CAC and preview
modules invoke the interface provided by the CDR to process
the record.
The CDR module saves the received records in the DSLAM
memory temporarily. After generating a record block, the CDR
module reports it to the service management system. After
receiving the response from the service management system,
the CDR module deletes the local records.
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