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Understand the Cisco Collaboration technology and certification training portfolio.

This webinar reviews fundamental networking skills from a Cisco perspective. Technical professionals looking to take the next step into Cisco specific networking technologies will benefit from this information.

Learn how Cisco ISE can centralize campus access with 802.1X.

Learn how Cisco ISE can add security to devices beyond initial connectivity.

Learn how to best prepare for the Cisco Certified Network Professional in Enterprise skillset.

Learn how Cisco ACI can be implemented to secure data center applications.

Understand how Cisco Intent-Based Networks and SDN technologies will transform your network to be the cornerstone of your digital success. Watch this recorded webinar today!

This paper helps you prepare to pass the latest version of the Cisco Certified Network Associate (CCNA) Routing and Switching exam.

This recorded webinar will discuss how Operational Technology Networks are transforming Enterprise Networks and discuss the unique challenges and solutions.

In this post I’ll focus on a topic that’s mentioned in the Cisco FIREWALL training class but isn’t emphasized there or in the online Cisco ASA documentation. When configuring failover on a pair of ASA security appliances, a situation can arise in which network disruption occurs due to the secondary ASA in a failover pair becoming active first and then the primary comes online second. Both the documentation and the courseware point out that this causes the secondary (and active ASA) to swap its interface MAC addresses with those of the primary. Being naturally skeptical about this behavior, I decided to investigate. The rest of this post illustrates my confirmation of this phenomenon.