Switching

In this post, you’re going to learn about the short and long STP Path Cost Methods, and how they differ. read more →

Shut down an OSPF interface and the IP subnet still gets advertised in OSPF? How is that possible? Check out this case. read more →

In this post, I’ll show you how to upgrade the SVL of a Cisco Cat9500 StackWise switch pair from two 25G to 100G links with minimum downtime. read more →

In this post, I’ll quickly show you how to increase the IP MTU size on a Catalyst 9500 switch to allow frames bigger than 1500 bytes (jumbo frames). read more →

If you’re looking to configure a switch for the first time, this post is for you. Learn step-by-step configuration commands for Cisco IOS Switches. read more →

Learn how to configure StackWise Virtual on a pair of Catalyst 9500 48Y4C switches and pick ports for the StackWise Virtual Link (SVL). read more →

Learn how to configure StackWise Virtual and apply best practices for an optimal redundant design with 40G and 100G interfaces. read more →