ESA

Extended Services Appliance

The Extended Services Appliance (ESA) is specialized hardware that hosts ESA Virtual Machines (ESA-VMs). Each ESA-VM is configured as an integrated service type. ESA extends the proven Integrated Services Adapter (ISA) system implementation architecture and related control processing module (CPM) functions on the 7750 SR systems to include ESA-VM-based virtual ISA (v-ISA) functionality.