Руководство По Проектированию для Cisco DNCS System Release 2.8 3.8 4.3
5-2
Staging DOCSIS-Capable DHCTs
4000358 Rev B
Load Client Release Software
CVT Download Process
The DNCS uses the Code Version Table (CVT) to load client release software into
DHCTs. The CVT is a table that contains information about download channels and
information to map client release software versions to DHCT types. Every QAM
broadcasts the information contained in this table once per second, and the DNCS
broadcasts it every 10 minutes on every QPSK and DSG CMTS.
If a DHCT does not have valid client release software installed, the DHCT will begin
If a DHCT does not have valid client release software installed, the DHCT will begin
to search QAM frequencies for software download information. When the DHCT
finds this information, it can begin to download valid client release software.