Cisco Model D-PCG1000 PowerKEY CAS Gateway Release Notes

 

4011046 Rev B 

9 

 

Versions of GQAM software prior to software version 2.5 inserted the PowerKEY 
Conditional Access (CA) descriptor into the Program Map Table (PMT) for 
unencrypted on-demand content. If the Digital Home Communication Terminal 
(DHCT) operating system (OS) found the CA descriptor in the PMT, the OS started 
the PowerKEY decryptor. 

The PowerKEY scheduler within the DHCT then prioritized entitlement control 
messages (ECMs) by waiting until an ECM was processed before allowing any other 
CA messages or requests to be processed. 

 

During this waiting period, when no ECMs were delivered, non-ECM requests (for 
example, a request for a Multi-Room DVR session, remained in the queue and were 
not processed until the PowerKEY decryptor was stopped. Therefore, no Multi-
Room DVR sessions could be established while the Multi-Room DVR server was 
streaming unencrypted VOD. 

 

GQAM software version 4.0.6 carries forward the modification from GQAM 
software version 1.0.6 to insert the CA descriptor only for encrypted sessions, 
including those that will be encrypted after interactive session key (ISK) setup. 
Consequently, the OS now correctly detects the encryption status of the stream. 
Detecting the encryption status enables sessions (including VOD and Multi-Room 
DVR sessions) to be established correctly on a Multi-Room server.