Cisco Cisco Live Event Controller Data Sheet

 

 

Data Sheet 

 

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Cisco Event Logger 

The Event logger is used by Programmers and Broadcasters to monitor and log digital 
program insertion (DPI) messages, allowing them to verify correct and timely 
transmission of the signals via a satellite distribution system. 

DPI is used to signal local ad insertion or local program insertion from broadcasters and 
programmers to receiving sites such as cable MSOs and IPTV headends.  DPI is 
generally signalled from the satellite uplink, and normally terminates in splicers at the 
headend, where ads from ad servers or programs from alternate sources are spliced into 
the stream.  Headends may be financially impacted if a DPI avail is not fulfilled and a 
local ad or program is missed.  As a result, if programmers and broadcasters do not see 
a DPI event take place, they often ask the uplink owner to verify that DPI signals were 
actually sent. 

Event Logger view 

 
 
 
 
 
 
 
 
 
 
 
 

 

The Event Logger provides a means of monitoring, correlating, and logging DPI triggers 
and the resulting DPI messages.  General purpose inputs (GPIs) on video encoders, 
used to trigger SCTE-35 message generation, are monitored by the Event Logger.  
Configured GPI state changes indicate to the Event Logger that a specific DPI message 
is now expected.  The Event Logger then watches the ASI output of a monitoring receiver 
to look for the expected SCTE-35 message.  If the message is not received within a given 
time period, the Event Logger flags it as a missed event.  If the message does arrive 
within the given time period, it is correlated to the configured GPI and logged as a 
matched event.  Results are logged in real time and archived for record-keeping 
purposes.