Cisco Cisco Videoscape Voyager Vantage 3.3 Installation Guide

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OL-29312-04 
 
Metadata Extraction Tool Description 
 
MET High-Level Diagram 
 
 
Empty Categories 
The MET database contains categories as originally sent from Arris, which the MET 
then forwards to set-top boxes (STBs). Should any of these categories be empty, an 
empty category is displayed to the subscriber.  
Cisco has provided a parameter (allowEmptyCats), set in the MetConfig.xml file, 
that allows the system operator to determine how the system treats empty 
categories.  
 
allowEmptyCats set to true — The MET server propagates empty categories to 
the STB 
 
allowEmptyCats set to false — The MET server removes empty categories before 
propagating them to the STB 
Note:  Parent categories are also checked and removed if there are no assets in 
any of their sub-categories.