Cisco Model D-PCG1000 PowerKEY CAS Gateway Release Notes
78-732583-01 Rev B
Introducing MQAM Software Version 2.4.10
1-7
CA Descriptor and VOD Sessions
Overview
The MQAM inserts the PowerKEY CA descriptor into the PMT for unencrypted on-
demand content. If the DHCT OS finds the CA descriptor in the PMT, the OS starts
the PowerKEY decryptor.
The PowerKEY scheduler then prioritizes ECMs by waiting until an ECM is
The PowerKEY scheduler then prioritizes ECMs by waiting until an ECM is
processed before allowing any other CA messages or requests to be processed.
During this waiting period, when no ECMs are delivered, non-ECM requests, (for
example, a request for an MR-DVR session), remain in the queue, and are not
processed until the PowerKEY decryptor is stopped.
Therefore, no MR-DVR session can be established while the MR-DVR server is
Therefore, no MR-DVR session can be established while the MR-DVR server is
streaming unencrypted VOD.
Solution
Now, the MQAM software has been modified to insert the CA descriptor only for
encrypted sessions, including those which will be encrypted after ISK setup.
Consequently, the OS now correctly detects the encryption status of the stream,
enabling sessions, including VOD and MR-DVR sessions, to be established correctly.