1.1. About This Guide

This guide describes details pertaining to Integrated Services Adapters (ISAs) and Extended Services Appliances (ESAs) and the services they provide.

This guide is organized into functional chapters and provides concepts and descriptions of the implementation flow, as well as Command Line Interface (CLI) syntax and command usage.

The topics and commands described in this document apply to the:

Table 1 lists the available chassis types for each SR OS router and the supported service hardware (ISA or ESA).

For a list of unsupported features by platform and chassis, and for services supported by ISAs and ESAs, refer to the SR OS 20.x.Rx Software Release Notes, part number 3HE 16194 000x TQZZA.

Command outputs shown in this guide are examples only; actual displays may differ depending on supported functionality and user configuration.

Note: This guide generically covers Release 20.x.Rx content and may contain some content that will be released in later maintenance loads. Refer to the SR OS 20.x.Rx Software Release Notes, part number 3HE 16194 000x TQZZA for information about features supported in each load of the Release 20.x.Rx software.

1.2. ISA and ESA Configuration Process

The 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.

Table 2 lists the ISA and ESA configurations with descriptions and their supported functionalities.

Table 3 is a summary of the ISA and ESA virtual machines (ESA-VMs) guide structure by task. Specific configuration details for a software area, CLI syntax and command usage to configure parameters for each function are contained within each section.