Cisco Model D-PCG1000 PowerKEY CAS Gateway Referências técnicas
Operations Alert Bulletin
Revised Procedures to Correct
Missing Key Certificates in QAM
Modulators
Revised Procedures to Correct
Missing Key Certificates in QAM
Modulators
Overview
Background
If a modulator in the QAM modulator family of devices is added to, or replaced
in, a network, the Digital Network Control System (DNCS) may initially configure
the key certificate associated with the modulator with an invalid value (e.g., 0 or
NULL).
Note: The QAM family of modulators includes QAMs, CAQAMs, GoQAMs,
GQAMs, and MQAMs.
This condition can go unnoticed because broadcast sessions can be built on
modulators that have a 0 or NULL certificate. Even if the broadcast session is
supposed to be encrypted, the session will still build successfully and
unencrypted video will play out of the modulator.
Encrypted video-on-demand (VOD) sessions, however, cannot be built for these
modulators unless the correct certificate is known by the DNCS. When encrypted
VOD sessions are requested from a modulator having a missing key certificate,
each request fails.
Note: These conditions manifest themselves in System Release (SR) 4.2 and later.
in, a network, the Digital Network Control System (DNCS) may initially configure
the key certificate associated with the modulator with an invalid value (e.g., 0 or
NULL).
Note: The QAM family of modulators includes QAMs, CAQAMs, GoQAMs,
GQAMs, and MQAMs.
This condition can go unnoticed because broadcast sessions can be built on
modulators that have a 0 or NULL certificate. Even if the broadcast session is
supposed to be encrypted, the session will still build successfully and
unencrypted video will play out of the modulator.
Encrypted video-on-demand (VOD) sessions, however, cannot be built for these
modulators unless the correct certificate is known by the DNCS. When encrypted
VOD sessions are requested from a modulator having a missing key certificate,
each request fails.
Note: These conditions manifest themselves in System Release (SR) 4.2 and later.
Recommendation
In an SR 4.2 or later system, whenever you add or replace a modulator in the
network, you must complete the procedures in this document.
Your urgency in completing these procedures can be determined by the severity
of the symptoms arising from the missing key certificate. For example, if only one
VOD QAM is affected and if it can be disabled until a maintenance window, then
it is fine for you to wait until the next maintenance window. If the affected QAM
is carrying adult channels, however, and if the content is currently being
network, you must complete the procedures in this document.
Your urgency in completing these procedures can be determined by the severity
of the symptoms arising from the missing key certificate. For example, if only one
VOD QAM is affected and if it can be disabled until a maintenance window, then
it is fine for you to wait until the next maintenance window. If the affected QAM
is carrying adult channels, however, and if the content is currently being