Cisco ROSA Extensions Data Sheet

 
 

 

 
 
 

 
 

The ROSA™ Element Manager’s Digital Headend 
Backup Task provides device or transport stream 
redundancy backup in a digital headend. 
 
The task analyzes the headend topology and 
divides it into a number of sections related to 
certain functionality. 
 
Backup operation is triggered with a device alarm, 
an I/O contact closure using UDD or via a channel 
alarm of Scientific-Atlanta’s LM 860™ Line 
Monitoring device. 
 
Depending on the number of predefined alarm 
triggers, an alarm correlation is performed for the 
different alarms over a predefined observation 
interval. 
 
Based on the diagnosis, a number of backup actions are performed on the devices. Afterwards, a post evaluation 
of the system is done to search for remaining alarms. 
 
The operator has full control of the task. The task can be activated or stopped, sections can be locked to prevent 
backup operation in case of alarm, manual restore of sections in backup, and so forth. The task logs messages 
for every action that is performed. 
 
 
 
 

·  Support for receivers, decoders, scramblers, descramblers, encoders, (re)multiplexers, transraters, up-

converters, fiber optic transport, modulators, and others. 

·  Different router configurations are supported: full router, backup router, and so forth. 

·  The task collects the headend topology from the ROSA interconnection database 

·  Triggered by device alarm, I/O contact closure or channel alarm from LM 860 

·  Operator has full control of the task 

·  Task behavior and topology examples are described in the Digital Headend Backup User’s Guide