The Cisco Nexus core switching system is taking the datacenter by storm, and there are good reasons why IT professionals are making it the heart of their server and storage systems. The transition to densely virtualized servers with rapid access to shared storage has coincided with the ready availability of 10G Ethernet ports on servers, and these 10G Ethernet ports all have to be connected together with a high speed switching fabric.
The Nexus switches have three main advantages that improve the reliability, speed, and flexibility of this switched network :
* Fabric Extenders.
* Virtual Port Channel.
* Unified Fabric.
