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ACX7332 System Overview

SUMMARY Learn about the ACX7332 cloud metro router, its hardware components, and the Junos OS Evolved software that runs the ACX7332 router.

ACX7332 Router Description

The Juniper Networks® ACX7332 Cloud Metro router is a multiservice platform from the ACX7300 series that addresses the growing demands of metro applications. With a compact 3-U semi-fixed form factor, it offers an aggregation solution that gives cloud providers and service providers the performance and scalability needed as networks grow.

The ACX7332 router provides 1-Gigabit Ethernet (GbE) through 400GbE port flexibility and a throughput of 2.4 Tbps. The router has a fixed FPC with thirty-two 25GbE and eight 100GbE ports, dual Routing Engines, three bays for pluggable interface modules, redundant power supply modules (AC or DC), and four fan trays (two fans per tray). The ACX7332 router supports the following pluggable FPCs:

  • ACX7K3-FPC-2CD4C—Two 400GbE and four 100GbE ports

  • ACX7K3-FPC-16Y—Sixteen 50GbE ports

The ACX7332 router runs Junos OS Evolved and provides several capabilities that include support for the latest protocol and traffic engineering technologies, enhanced security, and precision timing for mobile backhaul applications. These capabilities and features enable you to create converged, virtualized, and automated architectures to address the rapid growth of 5G, IoT, and the cloud.

Benefits of ACX7332 Routers

  • Compact and hardened cloud-era platform—Has a temperature-hardened and compact 3-U form factor that enables you to address a broad range of industrial applications.

  • Always-on infrastructure—Engineered with full hardware redundancy for the Routing Engines and power supplies to allow you to meet stringent service-level agreements (SLAs).

  • Ease of deployment—Features a toolless setup, and telescopic rails for a user-friendly installation, operation, and maintenance of the chassis.

  • Next-gen capabilities—Supports next-generation protocols including segment routing (SR), segment routing IPv6 (SRv6), MPLS, and EVPN-VXLAN.

  • MACsec capabilities—Provides data plane security with inline MACsec support. MACsec is supported on all ports except the 8 QSFP28 ports on the fixed FPC.

  • High-power ZR/ZR+ transceiver support—An efficient thermal design enables unrestricted high-power ZR/ZR+ transceiver use across all supporting ports.

ACX7332 Router Hardware Overview

The ACX7332 router has a 3-U semi-fixed form factor that includes a fixed packet forwarding engine, pluggable dual routing engines, and three bays for pluggable Flexible PIC Concentrators (FPCs). Two dedicated power supply modules (PSMs) support AC or DC power and the cooling system supports front-to-back airflow with four fan trays (two fans per tray).

Table 1: ACX7332 Router Components



Packet forwarding engine

1 (fixed)


ACX7K3-FPC-2CD4C or ACX7K3-FPC-16Y (pluggable into any of the three bays)

Routing Engines



2 (AC or DC)

Fan Trays

4 (two fans per tray)

ACX7332 Field-Replaceable Units

Field-replaceable units (FRUs) are router components that can be replaced at the customer site. Replacing most FRUs requires minimal router downtime. The router uses the following types of FRUs:

  • Hot-insertable and hot-removable—You can remove and replace these components without powering off the router or disrupting the routing function.

  • Hot-pluggable—You can remove and replace these components without powering off the router, but the routing function is interrupted until you replace the component.

Table 2: FRUs in an ACX7332 Router



Power supplies

Hot-insertable and hot-removable.

Fan trays

Hot-insertable and hot-removable.

Air filter

Hot-insertable and hot-removable.

Routing Engine


Flexible PIC Concentrators (FPCs)



The ACX7332 router has two hot-pluggable FRUs (ACX7K3-FPC-2CD4C and ACX7K3-FPC-16Y) and one fixed FPC.

We recommend that you take the FPCs offline before removing them. You can take FPCs offline by using the request chassis fpc slot slot-number offline command.

Optical transceivers


ACX7332 Router Component Redundancy

The following hardware components provide redundancy on ACX7332 routers:

  • Routing Engines—A redundant system on ACX7332 consists of two Routing Engines which are available as field-replaceable units (FRUs). One Routing Engine functions as the primary and the other functions as the backup. If the primary host subsystem (or either of its components) fails, the backup Routing Engine takes over as the primary.

  • Power supply modules (PSMs)—You can install up to two PSMs on ACX7332 routers to provide full power, 1+1 redundancy to the device. Each PSM provides power to all components in the router. If one PSM fails, or if you remove one PSM, the second PSM balances the electrical load without interruption.

ACX7332 System Software Overview

The ACX7332 routers runs Junos OS Evolved, which provides Layer 2 and Layer 3 switching, routing, and security services. Junos OS Evolved runs natively on Linux and has direct access to all Linux utilities and operations. It has a modular design that supports upgrades on a component-by-component basis without a system reboot. Only those components that are changed are restarted. Junos OS Evolved is easily portable, and it requires minimal effort to make it work on any platform. Junos OS Evolved has a modernized infrastructure, which ensures high availability, portability, faster innovation, and simplified upgrades.

For information about features supported on ACX series devices, see Feature Explorer.