Cisco Headend System Release 2.5 Installation Guide

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SR 2.5 and SR 3.5 UniPack Pre-Upgrade Procedures 
78-738190-01 Rev B 
Verify System Communications 
Verifying System Communication 
Use this procedure to verify that an active communication link exists between the 
DNCS and the various system components. The DNCS must be able to communicate 
with other system components to ensure a successful system upgrade.  
Important:  If any of the following tests fail, troubleshoot the system to the best of 
your ability. If you are unable to resolve the failure, contact Cisco Services for 
assistance. 
 
1. 
 
From an xterm window on the DNCS, type cd  /export/home/dncs/doctor and 
then press Enter
Result:  The /export/home/dncs/doctor directory becomes the working 
directory. 
2. 
 
Generate a complete Doctor Report by typing doctor  -av and then press 
Enter
Results:   
• 
The system generates the Doctor Report listing all system configuration 
information and directs the output of the report to the screen. 
• 
The system also saves the output of the Doctor Report to a log file in the 
current directory on the DNCS. 
Notes:   
• 
Depending upon the size of your system, it may take a few minutes for the 
report to generate. 
• 
The final line of the report generated to the screen lists the file to which the 
output was saved. 
3. 
 
Examine the log file and verify that the system was able to ping the following 
hardware components: 
• 
The Broadband Integrated Gateway (BIG) 
• 
All Quadrature Amplitude Modulators (QAMs) in the system 
• 
All Quadrature Phase-Shift Keying (QPSK) Modulators in the system (both 
the Ethernet and RF [radio frequency] ports) 
• 
The Transaction Encryption Device (TED)