How Do Staging Bridges Work?
The billing system sends staging information to DHCTs through the DNCS using
BOSS transactions. These BOSS transactions are also sent for service upgrades,
service downgrades, and periodic DHCT refreshes. Previous to SR 2.7/3.7/4.2 and
CV3.4, there was no reliable way to distinguish a modify DHCT transaction for a
staging hit from a modify DHCT transaction for any other purpose.
Beginning with SR 2.7/3.7/4.2 and CV3.4, we added a flag to the hct_profile table
which the Conditional Access System (CAM) of the DNCS uses to identify DHCTs
that have not been previously staged (identifying DHCTs with no EMMs). When the
DHCT receives a modify DHCT transaction, the CAM checks the staging flag of the
DHCT.
If the flag is set, the CAM performs the following:
Assumes that the transaction is not a staging transaction
If the DHCT is in service one-way, has the DNCS send the EMMs to the entire
DHCT population (as in previous SR releases)
If the flag is not set, the CAM performs the following:
Assumes that the transaction is a staging transaction
If the DHCT is in service one-way, has the DNCS send the EMMs to only those
QPSKs or CMTSs designated as staging bridges
After a successful completion of the EMM transfer, updates the flag in the DHCT
hct_profile table to indicate the DHCT has received staging information
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