DXS-3326GSR Gigabit Layer 3 Switch
Figure 6- 65. Access Rule Display window (Packet Content Mask) window
Port Access Entity
The original intent behind the development of 802.1X was to leverage the characteristics of point-to-point in LANs. As any
single LAN segment in such infrastructures has no more than two devices attached to it, one of which is a Bridge Port.
The Bridge Port detects events that indicate the attachment of an active device at the remote end of the link, or an active
device becoming inactive. These events can be used to control the authorization state of the Port and initiate the process of
authenticating the attached device if the Port is unauthorized. This is the Port-Based Network Access Control.
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