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Cisco CCNA Certification Exam Tutorial PortBased AuthenticationTo pass your CCNA exam and earn this coveted certification, you must understand the details of port-based authentication. This knowledge has a great deal of value in production networks as well, since this authentication scheme is regularly implemented. Let's take a look at this particular CCNA skill. Cisco CCNA CCNP Certification Exam Review Protocol Basics Cisco CCNA / CCNP Certification Exam Review: Protocol Basics To earn your Cisco CCNA certification and pass the BSCI CCNP exam, you have to know your protocol basics like the back of your hand! To he.. When a non-secure MAC address attempts to communicate with the switch port, one of three actions will occur, depending on the port security mode. In Protect mode, frames with non-secure MAC addresses are dropped. There is no notification that a violation has occurred. The port will continue to switch frames for the secure MAC address. In Restrict mode, the same action is taken, but a syslog message is logged via SNMP, which is a messaging protocol used by Cisco routers. In Shutdown mode, the interface goes into error-disabled state, the port LED will go out, and a syslog message is logged. The port has to be manually reopened. Shutdown mode is the default port-security mode. Port-based authentication is just one of the many switching skills you'll have to demonstrate to earn your CCNA certification. Make sure you know the basics shown here, including the action of each particular mode, and you're on your way to CCNA exam success! Cisco CCNA Certification and Career Path Cisco CCNA Certification and Career Path Following your computer training toward your career path, you can go for the CCNA certification (Cisco Certified Network Associate), which indicates a foundat.. Chris Bryant, CCIE #12933, is the owner of The Bryant Advantage, home of freeCCNA andCCNP tutorials, The Ultimate CCNA Study Package, and Ultimate CCNP Study Packages. You can also join his RSS feed and visit his blog, which is updated several times daily with new Cisco certification articles, free tutorials, and daily CCNA / CCNP exam questions! Details are on the website. For a FREE copy of his latest e-books, ,How To Pass The CCNA, and ,How To Pass The CCNP,, visit the website and download your free copies. You can also get FREE CCNA and CCNP exam questions every day! Get yourCCNA study guide from The Bryant Advantage!
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