Version 6.6
835
October 2014
Installation & Operation Manual
47
.
Troubleshooting Strategy
47
Troubleshooting Strategy
The goal of the maintenance procedures described in this section is, in the even of a
component failure, to return the Media Gateway to full capacity as rapidly as possible.
The maintenance philosophy is focused on locating the faulty component and
replacing it. The Media Gateway’s components are not normally repaired at the
Customer’s site. The following principles have been formulated to guide you in
troubleshooting the system:
Try connecting to the Media Gateway's management interface (SNMP or CLI) via
the IP network. Use the appropriate management tools (e.g., the EMS GUI or CLI
commands) to inspect the current Media Gateway status and locate the fault.
Locating the fault this way could save you a visit to the site or save you time
when you arrive there.
Use a systematic process of elimination to try and identify the source of the
problem. Ask the users of the Media Gateway to describe the nature of the
problem they have encountered. Ask yourself questions such as these:
•
What is the scope of the problem?
•
Does it affect one particular interface, a group of interfaces, or the entire
Media Gateway?
•
What capabilities are affected?
•
Does the problem occur during daytime hours only, or also during the night?
•
Did the problem(s) start after any configuration changes or other operator
activities were made?
•
What is the likely source of the problem? A faulty interface or board? Loose
or incorrect cabling? A problem in the common equipment or configuration
definition?
Perform the simplest test first. For example, if a particular interface does not
work, check that the junction box cord is properly inserted and swap the interface
cable to another working interface to see if the fault lies in the interface, before
checking the wiring or the Media Gateway configuration.
The table below presents possible courses of action to remedy faults arising in the
Mediant 8000 Media Gateway.
Table
47-1: Troubleshooting Faults in the Media Gateway
Problem
Possible Cause(s)
Actions to Take
See:
Media Gateway is
"dead". All LEDs
(on boards and
power supply
modules) are off or
red and there is no
sound from the
ventilation fans.
Power supply
problem
Check the DC power connection
and voltage. Connect all the power
wires and turn on the appropriate
switches.
DC Power
System
Summary of Contents for Mediant 8000
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Page 33: ...Part I Hardware Overview This part describes the hardware overview of the Mediant 8000 chassis...
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Page 775: ...Part VI Maintenance This part describes the Mediant 8000 maintenance procedures...
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Page 879: ...Part VIII Appendices This part describes additional Mediant 8000 configuration procedures...
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Page 924: ...Media Gateway Mediant 8000 www audiocodes com Installation Operation Maintenance Manual...