McAfee M-2750 Product Guide - Page 29

Troubleshooting the Sensor

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5 Troubleshooting the Sensor This section provides the solution to some of the common installation problems. Problem Possible Cause Solution LED is off. The control cable has been Check the control cable and ensure it is disconnected. properly connected to both the Sensor and the Bypass Switch. LED is off. The Sensor is powered off. Restore Sensor power. LED is off. The Sensor port cable is disconnected. Check the Sensor cable connections. Sensor is operational, but is not monitoring traffic. Network device cables have Check the cables and ensure they are been disconnected. properly connected to both the network devices and the Bypass Switch. Sensor is operational, but is not monitoring traffic. The Sensor ports have not been enabled in the Manager. The Sensor will not monitor traffic 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 configuration. Ensure that the transmit and receive cables are properly connected to the Bypass Switch. Runts or giants errors on Improper cabling or port switch and routers. configuration. 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. McAfee® Network Security Platform M-2750 Sensor Product Guide 29

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5
Troubleshooting the Sensor
This section provides the solution to some of the common installation problems.
Problem
Possible Cause
Solution
LED is off.
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 off.
The Sensor is powered off.
Restore Sensor power.
LED is off.
The Sensor port cable is
disconnected.
Check the Sensor cable connections.
Sensor is operational,
but is not monitoring
traffic.
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
traffic.
The Sensor ports have not
been enabled in the
Manager.
The Sensor will not monitor traffic 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
configuration.
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
configuration.
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.
5
McAfee
®
Network Security Platform
M-2750 Sensor Product Guide
29