access layer Switches in a three-tier topology that are directly connected to servers and to a pair of aggregation switches.
Adapter Fabric Extender (Adapter-FEX) UCS feature that allows the creation of static virtual adapters within a UCS domain.
Adaptive Security Virtual Appliance (ASAv) Essentially the Cisco ASA firewall software ported into a virtual machine.
Advanced Technology Attachment (ATA) Block I/O access method standardized by the American National Standards Institute (ANSI). It defines multiple types of connections between x86 platforms (personal computers or servers) and internal storage devices.
aggregation layer Switches in a three-tier topology that are responsible for the communication between different access switch ...