1-11 Port Security ConfigurationThe following new features are added:z The port in the macAddressOrUserLoginSecure mode supports guest VLANconfiguration. For more information, see Configuring Guest VLAN for a Port inmacAddressOrUserLoginSecure mode.z The security MAC addresses that the port learns automatically supports aging. Formore information, see Configuring an aging time for learned secure MAC addressentries.When configuring port security, go to these sections for information you are interested in:z Port Security Overviewz Port Security Configuration Task Listz Displaying and Maintaining Port Security Configurationz Port Security Configuration ExamplesThe security modes of the port security feature provide extended and combined use of802.1X authentication and MAC authentication. They apply to scenarios that require both802.1X authentication and MAC authentication. For scenarios that require only 802.1Xauthentication or MAC authentication, you are recommended to configure 802.1Xauthentication or MAC authentication rather than port security for simplicity.Port Security OverviewIntroductionPort security is a security mechanism for network access control. It is an expansion to thecurrent 802.1X and MAC authentication.Port security allows you to configure a port to operate in an intended security mode tocontrol the MAC address learning or user authentication on the port. This enables theswitch to learn legal source MAC addresses, so as to implement network securitymanagement as needed.