Hardware Architecture Overview - Juniper ACX1000 Configuration Manual

Junos os; acx series universal access router

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Table 3: Protocols and Applications Supported by ACX Series Routers (continued)

Protocol or Application

Standard SNMP MIBs

Juniper Networks

enterprise-specific MIBs

Documentation

Hardware Architecture Overview

ACX Series Universal Access Routers

Juniper Networks routing platforms are made up of two basic routing components:

Routing Engine—The Routing Engine controls the routing updates and system

Packet Forwarding Engine (PFE)—The Packet Forwarding Engine performs Layer 2

and Layer 3 packet switching, route lookups, and packet forwarding.

From a system administration perspective, you install the software onto the Routing

Engine and during the installation, the appropriate software is forwarded to other

components as necessary. Most Routing Engines include a CompactFlash card that

stores Junos OS. On M Series Multiservice Edge Routers; MX240, MX480, and MX960

3D Universal Edge Routers; T Series Core Routers; and TX Matrix routers, the system also

includes a hard disk or solid-state drive (SSD) that acts as a backup boot drive. PTX

Series Packet Transport Routers and the TX Matrix Plus router include a solid-state drive

as a backup boot drive.

The MX80 router is a single-board router with a built-in Routing Engine

and single Packet Forwarding Engine. On an MX80 router, Junos OS is stored

on dual, internal NAND flash devices. These devices provide the same

functionality as a CompactFlash card and hard disk or solid-state drive (SSD).

Chapter 1: ACX Series Universal Access Router Overview

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