Specifications

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Cisco Internet Streamer CDS 2.0-2.3 Software Configuration Guide
OL-13493-04
APPENDIX
A
Troubleshooting
This appendix provides information on troubleshooting. The following topics are covered in this
appendix:
• Troubleshooting Service Router Configurations, page A-1
• Troubleshooting the Distribution Hierarchy, page A-2
• Troubleshooting Content Acquisition, page A-3
• Enabling the Kernel Debugger, page A-6
For more troubleshooting tools, see Chapter 7, “Monitoring the Internet Streamer CDS.”
Troubleshooting Service Router Configurations
Because there are many steps required for the Service Router to redirect the request properly, you might
see some content request errors from the Service Router when the configuration is not quite complete.
Here are some areas to look at when troubleshooting:
• DNS delegation
– Is the requested domain delegated to the Service Router on the DNS server that is authoritative
for the parent domains? The Service Router’s DNS name should be forward resolvable. Check
with the system administrator to delegate a domain.
• Service Router routing properties
– Is the Service Router activated? See the “Activating a Service Router” section on page 4-87 to
activate a Service Router.
– Is a default coverage zone set for a Service Engine, or is there a CDS network-wide Coverage
Zone file or a local Coverage Zone file set for the Service Router? See the “Coverage Zone File
Registration” section on page 6-9 to set a Coverage Zone file. See the “Configuring the Service
Engine” section on page 4-6 to set a default coverage zone.
– Is the content request from an end system covered by a Service Engine in a coverage zone based
on the default coverage zone or the Coverage Zone file? This Service Engine is the “serving
Service Engine.” See the “Coverage Zone File” section on page 1-21 for information on
coverage zones. See Appendix C, “Creating Coverage Zone Files,” for information on creating
a Coverage Zone file.
– Is the serving Service Engine activated? See the “Activating a Service Engine” section on
page 4-6 to activate a Service Engine.