Access Layer Security Features Part 1: Port Security

Ethernet and IP by themselves don’t really provide security at the access layer.  They can easily be spoofed and attacked by hosts connected to the same network.  Accordingly, over the years vendors have created a variety of mechanisms to secure Continue reading Access Layer Security Features Part 1: Port Security

Data Center Server Access Topologies: Part 4, Uplinks

In this post I’ll briefly touch on some of the different ways access blocks can be connected up to the distribution layer in your data center. Spanning Tree Topologies I’ve outlined four different possible spanning tree topologies below.  Realistically though, Continue reading Data Center Server Access Topologies: Part 4, Uplinks