About This Guide

This guide describes Layer 3 service functionality provided by SR-series routers and presents examples to configure and implement various protocols and services.

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:

7450 ESS
7750 SR
7950 XRS
VSR

Table 1 lists the available chassis types for each SR OS router.

Table 1. Supported SR OS Router Chassis Types
7450 ESS	7750 SR	7950 XRS
7450 ESS-7/12	7750 SR-a4/a8 7750 SR-1e/2e/3e 7750 SR-12e 7750 SR-1 7750 SR-1s/2s 7750 SR-7s/14s	7950 XRS-16c 7950 XRS-20/40 7950 XRS-20e

For a list of unsupported features by platform and chassis, refer to the SR OS R21.x.Rx Software Release Notes, part number 3HE 17177 000x TQZZA.

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

Note:

The SR OS CLI trees and command descriptions can be found in the following guides:

7450 ESS, 7750 SR, 7950 XRS, and VSR Classic CLI Command Reference Guide
7450 ESS, 7750 SR, 7950 XRS, and VSR Clear, Show, and Tools Command Reference Guide (for both MD-CLI and Classic CLI)
7450 ESS, 7750 SR, 7950 XRS, and VSR MD-CLI Command Reference Guide

Note:

This guide generically covers Release 21.7.R1 content and may contain some content that will be released in later maintenance loads. Please refer to the SR OS R21.x.Rx Software Release Notes, part number 3HE 17177 000x TQZZA, or for information about features supported in each load of the Release 21.7.R1 software.