An Arctic Wolf® Sensor is an external network device that allows you to monitor network traffic. When the sensor is deployed with port mirroring, a switch sends a copy of all network packets that are seen on one port to another port.

This image provides a simplified network map of a sensor with mirroring deployment:

Callout	Description
A	Sensor with mirroring deployment
B	Management port network connection
C	Network switch
D	Firewall
E	Internet