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Cisco Intrusion Prevention System Appliance and Module Installation Guide for IPS 7.1
OL-24002-01
Chapter 7 Installing the IPS 4510 and IPS 4520
IPS 4500 Series Sensors and the SwitchApp
IPS 4500 Series Sensors and the SwitchApp
The 4500 series sensors have a built in switch that provides the external monitoring interfaces of the
sensor. The SwitchApp is part of the IPS 4500 series design that enables the InterfaceApp and sensor
initialization scripts to communicate and control the switch. Any application that needs to get or set
information on the switch must communicate with the SwitchApp. Additionally the SwitchApp
implements the following:
• Detects bypass—When the SensorApp is not monitoring, the SwitchApp places the switch in bypass
mode and then back to inspection mode once the SensorApp is up and running normally.
• Collects port statistics—The SwitchApp monitors the switch and collects statistics on the external
interfaces of the switch for reporting by InterfaceApp.
• Handles the external interface configuration—When you update the interface configuration, the
configuration is sent to the InterfaceApp, which updates the interface configuration for SwitchApp,
which then forwards that configuration on to the switch.
For More Information
For detailed information about the IPS system architecture, refer to System Architecture.