[□ | □]
[□=□ | □]
[□ | □ | □]
Features are key to a Switch successfully serving the needs of each layer of the Data Center , and more importantly , to the business needs served by the Data Center . With the increased reliance on wireless LANs ( WLANs ) , businesses are becoming more concerned about network security . In the modern corporation , the system is considered only as strong as its stars , and , in the past few years , this message has been preached by consultants and management gurus all over the world . Up they came , each in turn , with a shake of the head to clear the wet hair from their eyes as they began their long swim to the edge of the crater . If the active control engine fails , the secondary control engine will transparently resume its function .