How Direct Attach From Extreme Networks Reduces Tiers in the Data Center
The emergence of virtualization technology has transformed the modern data center by improving server utilization, reducing power requirements and increasing both availability and scalability. At the same time, the requirement for server density has led to the growth in blade servers. These trends have had an impact on data center networking. A typical "Non-virtualized" data center has three network layers: top-of-Rack Switch: interconnects the servers in a rack, End-of-Row Switch: interconnects the racks, Core Switch: Interconnects all rows and other devices.