McAfee M-2950 - Troubleshooting the Sensor

5
Troubleshooting the Sensor
This section provides the solution to some of the common installation problems.
Problem Possible Cause Solution
LED is o. The control cable has been
disconnected.
Check the control cable and ensure it is properly
connected to both the Sensor and the Bypass
Switch.
LED is o. The Sensor is powered o. Restore Sensor power.
LED is o. The Sensor port cable is
disconnected.
Check the Sensor cable connections.
Sensor is operational, but is
not monitoring trac.
Network device cables have
been disconnected.
Check the cables and ensure they are properly
connected to both the network devices and the
Bypass Switch.
Sensor is operational, but is
not monitoring trac.
The Sensor ports have not
been enabled in the
Manager.
The Sensor will not monitor trac on the ports
unless the ports are enabled in the Manager.
Ports are disabled in a Sensor failure; they must
be re-enabled for Sensor monitoring to resume.
Network or link problems. Improper cabling or port
conguration.
Ensure that the transmit and receive cables are
properly connected to the Bypass Switch.
Runts or giants errors on
switch and routers.
Improper cabling or port
conguration.
Ensure that the transmit and receive cables are
properly connected to the Bypass Switch.
The system fault "Switch
absent" appears in the
Manager Operational
Status window.
The control cable has been
disconnected.
Check the control cable and ensure it is properly
connected to both the Sensor and the Bypass
Switch.
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McAfee
®
Network Security Platform M-2850/M-2950 Sensor Product Guide
29