Cisco Headend System Release 2.7 User Guide

 

4013430 Rev B 

21 

 

If a DHCT does not respond to the initial SNMP poll, it is polled up to two more 
times (for a maximum of three attempts). If the SNMP poll is unsuccessful after three 
attempts, the DHCT is considered to be a non-responder and will appear only on the 
Non-Responding DHCTs-SNMP Poll Report. However, if at least one of the three 
SNMP poll attempts succeeds, then the DHCT will appear in the OS/App Version, 
Memory, and DHCT Uptime Reports.  

Note: You can view the list of candidate DHCTs from the last SNMP Poll Report that 
was run by examining the /dvs/RepWriter/current/bin/maclist file. 

The following table provides a description of each of the SNMP Poll Reports. These 
reports are listed in the order in which you will see them when you open Report 
Writer. 

Non-Responding DHCTs-SNMP Poll 

Data listed: All DHCTs that did not 
respond to one of three SNMP "get" 
requests 

OS/App Version* 

Data listed: The PowerTV

®

 Operating 

System and Resident Application versions 
installed in each DHCT 

Notes: 

 

The Resident Application is the 
application that is run on the DHCT 
that provides all basic functionality for 
the DHCT, including navigation, 
changing channels, volume control, etc. 
For Cisco DHCTs, the resident 
application is the Cisco Resident 
Application (SARA). 

 

Set-tops manufactured by other 
vendors have a different resident 
application installed to handle this 
functionality. 

Memory Report* 

Data listed: The total memory in each 
DHCT, and the amount of memory 
currently free 

DHCT Uptime* 

Data listed: The amount of time since each 
DHCT last rebooted 

*The OS/App Version, Memory, and DHCT Uptime reports display data collected from both the SNMP "get" 
request and from the DNCS database.