Juniper : Introduction to the Junos Operating System: 2022

Thursday, 1 December 2022

Junos Software Versions - Suggested Releases to Consider and Evaluate

Juniper provides this document as a means to help customers and Juniper manufacturing select a Junos software version that aligns with their deployment needs. The releases listed below have performed well for the general population, but note that due to the uniqueness of our customer network deployments to include areas such as design, traffic patterns/flows, and specific usage of features and functionality, Juniper recommends that all customers A) read the associated Release Notes to understand how features, functionality, fixes, and any known outstanding issues may apply to your specific network and applications, and B) test and certify the suggested code version(s) to ensure they will perform as expected in your network.

This article applies to the following devices:

ACX Series
EX Series
MX Series
NFX Series
PTX Series
QFX Series
SRX Series

For other Junos devices, refer to the Release Notes and the Alerts column on the Download Software pages.

Notes:

The software versions included in this article are selected by utilizing input from Juniper Engineering, customers, and analysis of field usage data.
To be automatically notified of updates to this document, use the Subscribe link. If you do not see the Subscribe link, log in with your user account.
Juniper Networks offers optional fee-based services to further aide customers in selecting and testing software releases. If interested in more information, please contact your Juniper Sales Representative to discuss offering details and pricing.

Symptoms

For use by customers and Juniper manufacturing planning an upgrade or initial installation.

Exceptions for evaluating these suggested software versions include:

A Juniper engineer has recommended that a customer use a specific version of Junos software that is different from what is listed here in this article.
You require specific features ( Feature Explorer ) that are available only in another version of Junos software. In that case, be sure to download the latest maintenance release.
Your current installed version of Junos is meeting your requirements as is.
If you use NSM, refer to the NSM & Junos Compatibility Matrix to make sure the suggested Junos software version can be managed by NSM.

To see the list of End of Engineering (EOE) and EOS (End of Support) dates for specific Junos versions, please go to the Junos Dates & Milestones page or the Junos OS Evolved Dates & Milestones page

To see features supported per specific Junos versions, please go to the Juniper Pathfinder page and navigate to "Feature Explorer"

Solution

To download Junos Software, go to the Software Download site and find your product.

Suggested Junos Software Versions for your consideration and evaluation are listed in the tables below.

NOTE: To locate a Junos release containing an 'S' (i.e. Junos 17.3R3- S 3), on the Software Download product page change the OS drop-down from Junos to Junos SR

Select to jump to a platform series:

EX Series	MX, PTX Series	ACX Series
NFX Series	QFX Series	SRX Series

EX Series Ethernet Switches

Platform	Junos Software by Platform	Last Updated
EX2200 (See Note 3)	Latest Junos 12.3R12-Sx	1 Feb 2022
EX2200-C ( See Note 3)	Latest Junos 12.3R12-Sx	1 Feb 2022
EX2300	Latest 21.4R3-Sx	14 Nov 2022
EX2300-C	Latest 21.4R3-Sx	14 Nov 2022
EX2300-MP	Latest 21.4R3-Sx	14 Nov 2022
EX3200	Latest Junos 12.3R12-Sx	1 Feb 2022
EX3300 ( See Note 4)	Latest Junos 12.3R12-Sx	1 Feb 2022
EX3400	Latest 21.4R3-Sx	14 Nov 2022
EX4200	Latest Junos 12.3R12-Sx / 15.1R7-Sx	1 Feb 2022
EX4300	Latest 21.4R3-Sx	14 Nov 2022
EX4300-MP	Latest 21.4R3-Sx	14 Nov 2022
EX4400	Latest 21.4R3-Sx	14 Nov 2022
EX4500	Latest Junos 12.3R12-Sx / 15.1R7-Sx	1 Feb 2022
EX4550	Latest Junos 12.3R12-Sx / 15.1R7-Sx	1 Feb 2022
EX4600	Latest 21.4R3-Sx	14 Nov 2022
EX4650	Latest 21.4R3-Sx	14 Nov 2022
EX6200	Latest Junos 12.3R12-Sx / 15.1R7-Sx	1 Feb 2022
EX8200 (See Note 2)	Latest Junos 12.3R12-Sx / 15.1R7-Sx	1 Feb 2022
EX8200-VC (XRE200) (See Note 2 )	Latest Junos 12.3R12-Sx / 15.1R7-Sx	1 Feb 2022
EX9200	Latest 21.4R3-Sx	14 Nov 2022
EX9251	Latest 21.4R3-Sx	14 Nov 2022
EX9253	Latest 21.4R3-Sx	14 Nov 2022
Junos Fusion Enterprise (JFE)	Latest 21.4R3-Sx	14 Nov 2022

Notes:

It is highly recommended to refer to the Release Notes, Technical Documentation, and KB articles for any outstanding and resolved issues before making the upgrade decision. Contact JTAC if there are any queries.
Please refer to TSB16758 for minimum software requirements for newer revision EX8200 line cards.
Please refer to TSB17138 for more details.
Please refer to TSB17329 .

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ACX Series Service Routers

Platform	Junos Software by Platform	Last Updated
ACX500	Latest Junos 20.2R3-Sx Latest Junos 20.4 (LSV Outdoor) Latest Junos 21.2 (LSV Indoor)	2 Nov 2021
ACX710	Latest Junos 21.3R3-Sx	9 Nov 2022
ACX1000	Latest Junos 20.4R3-Sx Latest Junos 21.2 (LSV)	18 Oct 2021
ACX1100	Latest Junos 20.4R3-Sx Latest Junos 21.2 (LSV)	18 Oct 2021
ACX2000	Latest Junos 20.4R3-Sx Latest Junos 21.2 (LSV)	18 Oct 2021
ACX2100	Latest Junos 20.4R3-Sx Latest Junos 21.2 (LSV)	18 Oct 2021
ACX2200	Latest Junos 20.4R3-Sx Latest Junos 21.2 (LSV)	18 Oct 2021
ACX4000	Latest Junos 20.4R3-Sx Latest Junos 21.2 (LSV)	18 Oct 2021
ACX5448	Latest Junos 21.3R3-Sx	9 Nov 2022
ACX5048 / ACX5096	Latest Junos 21.2 (LSV)	2 Dec 2022
ACX6360-OX	Latest Junos 18.4R1-Sx	16 Nov 2022
ACX6360-OR	Latest Junos 19.4R2-Sx	16 Nov 2022
ACX7100	Latest Junos Evolved 21.2R3-Sx-EVO	11 Aug 2022
ACX7024	Latest Junos Evolved 22.3R1-EVO	29 Sept 2022
ACX7509	Latest Junos Evolved 21.4R2-Sx-EVO	29 Sept 2022

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MX and PTX Series Routers

Platform	Junos Software by Platform	Last Updated
PTX Series (Except ones listing below)	Latest Junos 20.4R3-Sx Latest Junos 21.2R3-Sx Latest Junos 21.4R3	26 Sep 2022
PTX10001-36MR	Latest Junos Evolved 20.4R3-Sx-EVO Latest Junos Evolved 21.42-S2-EVO	29 Sep 2022
PTX10003	Latest Junos Evolved 20.4R3-Sx-EVO Latest Junos Evolved 21.4R2-S2-EVO	29 Sep 2022
PTX10004	Latest Junos Evolved 20.4R3-Sx-EVO Latest Junos Evolved 21.4R2-S2-EVO	29 Sep 2022
PTX10008/16 with FAN2/AC2/DC2 Components (Do not use if deploy - JNP10008-SF3)	Latest Junos 20.4R3-Sx Latest Junos 21.2R3-Sx Latest Junos 21.4R3	29 Sep 2022
PTX10008 with PTX10K-LC1201/2 and JNP100008-SF3 JNP10K-RE1-E	Latest Junos Evolved 20.4R3-Sx-EVO Latest Junos Evolved 21.4R2-S2-EVO	29 Sep 2022
MX Series	Latest Junos 20.4R3-Sx Latest Junos 21.2R3-Sx Latest Junos 21.4R3	29 Sep 2022
MX Series with MX-SPC3	Latest Junos 21.2R3-Sx	11 Aug 2022
MX 2008/2010/2020	See MX Series
MX240/480/960 with SCBE3	Latest Junos 20.4R3-Sx Latest Junos 21.2R3-Sx Latest Junos 21.4R3	29 Sep 2022
MX240/480/960 with MPC10E	Latest Junos 20.4R3-Sx Latest Junos 21.2R3-Sx Latest Junos 21.4R2-Sx	29 Sep 2022
MX5, MX10, MX40, MX80, MX104 Series	Latest Junos 20.2R3-Sx Latest Junos 20.4R3-Sx Latest Junos 21.2R3-Sx (LSV)	1 Aug 2022
MX150, MX204, MX10003 Series	See MX Series
MX10008/16 Series	LatestJunos 20.4R3-Sx Latest Junos 21.2R3-Sx Latest Junos 21.4R3	29 Sep 2022
MX10008/16 Series with MX10K-LC9600 and JNP10008-SF2	Latest Junos 21.4R3	1 Aug 2022
MX Series with EVPN MPLS/VXLAN	Latest Junos 20.4R3-Sx Latest Junos 21.2R3-Sx	20 Jan 2022
MX Subscriber Management ^(*1)	Latest Junos 21.2R3-Sx	11 Aug 2022
MX Services on MS-MPC/MIC ^(*3)	Latest Junos 21.2R3-Sx	11 Aug 2022
vMX / vBNG ^(*2)	Latest Junos 21.2R3-Sx	11 Aug 2022

Notes:

This includes subscriber management deployments that incorporate services such as CGNAT, etc.
See KB33938 for detailed information and directly downloadable links to software for M/MX/PTX/T-Series JUNOS Software
Recently released hardware may require a software version newer than listed above. Please use the latest Service Release for the required JUNOS software version
Due to feature parity recommended by Product Line Management
MPC11 is not supported in Junos 19.4

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NFX Series Network Services Platform

Platform	Junos Release	Software Architecture	Release Type	Last Updated
NFX150	Junos 21.4R3	nfx-3	Service	13 Oct 2022
NFX250-NG	Junos 21.4R3	nfx-3	Standard	13 Oct 2022
NFX350	Junos 21.4R3	nfx-3	Standard	13 Oct 2022

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QFX Series

Platform	Junos Software by Platform	Last Updated
QFX5220/QFX5130/QFX5700	Latest 21.4R3-Sx-EVO	14 Nov 2022
QFX5100	Latest 21.4R3-Sx	14 Nov 2022
QFX5200	Latest 21.4R3-Sx	14 Nov 2022
QFX5110	Latest 21.4R3-Sx	14 Nov 2022
QFX5120-32C	Latest 21.4R3-Sx	14 Nov 2022
QFX5120 -48Y	Latest 21.4R3-Sx	14 Nov 2022
QFX5120-48T	Latest 21.4R3-Sx	14 Nov 2022
QFX5210	Latest 21.4R3-Sx	14 Nov 2022
QFX10002 / QFX10008 / QFX10016	Latest 21.4R3-Sx	14 Nov 2022
QFX10002-60C	Latest 21.4R3-Sx	14 Nov 2022
EVPN-VXLAN Fabric CRB (Centrally Routed Bridging)	Latest 21.4R3-Sx	14 Nov 2022
EVPN-VXLAN Fabric ERB ( Edge Routed Bridging)	Latest 21.4R3-Sx	14 Nov 2022
IP-Fabric ( QFX10K and QFX5K)	Latest 21.4R3-Sx	14 Nov 2022
VCF-QFX5110	Latest 21.4R3-Sx	14 Nov 2022
VCF-QFX5100	Latest 21.4R3-Sx	14 Nov 2022
VC-QFX5100	Latest 21.4R3-Sx	14 Nov 2022
VC-QFX5110	Latest 21.4R3-Sx	14 Nov 2022
VC-QFX5120	Latest 21.4R3-Sx	14 Nov 2022
VC-QFX5120-32C	Latest 21.4R3-Sx	14 Nov 2022
VC-QFX5200	Latest 21.4R3-Sx	14 Nov 2022
MC-LAG (QFX5K)	Latest 21.4R3-Sx	14 Nov 2022
MC-LAG (QFX10K)	Latest 21.4R3-Sx	14 Nov 2022
Qfabric (See Note 1)	Junos 14.1X53-D130	30 Jul 2019

Note:

Qfabric NSSU upgrade from Junos 12.2X50 to later releases is NOT recommended. Please see TSB16842 for more details.

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SRX Series Services Gateways

Platform	Junos Software by Platform	Release Type	Last Updated
SRX300 / SRX320 / SRX340 / SRX345 / SRX380 / SRX550HM	Junos 21.2R3-S3	Service	22 Nov 2022
SRX1500	Junos 21.2R3-S3	Service	22 Nov 2022
SRX4100 / SRX4200	Junos 21.2R3-S3	Service	22 Nov 2022
SRX4600	Junos 21.2R3-S3	Service	22 Nov 2022
SRX5400 / SRX5600 / SRX5800 with SRX5K-RE3-128G ^(*1)	Junos 21.2R3-S3	Service	22 Nov 2022
SRX5400 / SRX5600 / SRX5800 with RE-1800X4 ^(*1)	Junos 21.2R3-S3	Service	22 Nov 2022
vSRX 3.0 (recommended)	Junos 21.2R3-S3	Service	22 Nov 2022
vSRX (legacy)	Junos 21.2R3-S3	Service	22 Nov 2022
Products for which Junos 12.3X48 is the last supported version: SRX5400 / SRX5600 / SRX5800 with SRX5K-RE-13-20 ^(1)(2) SRX100H2 / SRX110H2 / SRX210HE2 / SRX220H2 / SRX240H2 / SRX550 / SRX650 SRX1400 / SRX3400 / SRX3600	Junos 12.3X48-D105	Standard	16 Oct 2020

Notes:

KB30446 - SRX Junos SRX5K Hardware / Software compatibility matrix.
TSB17655 - On the SRX5000 series with SRX5k RE-13-20 a software upgrade to Junos release 12.3X48-D80, D85, or D90 may fail the pre-check due to insufficient space available on the compact flash.
TSB18251 - For upgrades to Junos version 21.2 or higher from Junos versions below 21.2, the no-validate option needs to be used in the request system software upgrade or the request system software in-service-upgrade command. Note: this does not apply to SRX300 series and SRX550HM
PR1590099 - The no-validate option with the request system software in-service-upgrade command does not take effect on SRX platforms. As a workaround, use the no-compatibility-check option instead. This issue is fixed in Junos 20.3R3-S5, 20.4R3-S4, 21.1R3-S3 and 21.2R1 and higher releases
For Junos OS upgrade paths instructions for SRX platforms, please see KB36620.
For EoE and EoS dates for each Junos release, please see Junos Release Milestones.

Juniper : SD Wan

What is SD-WAN?

Software-defined wide-area networking (SD-WAN) is an automated, programmatic approach to managing enterprise network connectivity and circuit costs. It extends software-defined networking (SDN) into an application that businesses can use to quickly create a smart hybrid WAN.

Consisting of business-grade IP VPN, broadband Internet, and wireless services, SD-WAN enables you to cost-efficiently manage applications, particularly in the cloud. Traffic is automatically and dynamically forwarded across the most appropriate and efficient WAN path based on network conditions, application traffic security and quality-of-service (QoS) requirements, and circuit cost. You can set the routing policies.

SD-WAN Benefits

Businesses are rapidly adopting SD-WAN technology because of its comprehensive financial and operational benefits.

Lowers WAN OpEx, CapEx, and overall total cost of ownership.
Provides greater business agility and responsiveness to keep pace with IT innovations.
Supports multiple, secure, high-performance connections, eliminating backhaul penalties imposed by MPLS networks.
Improves performance by enabling load sharing across connections and adjusting traffic flows based on network conditions.
Supports the automated provisioning of, and changes to, premium network services such as VPNs, firewalls, security, WAN optimization, and application delivery control.
Supports zero touch provisioning (ZTP).
Improves network security by encrypting WAN traffic and segmenting the network to minimize damage if breaches occur.

Problems Addressed by SD-WAN

Managing the WAN traditionally has been one of the most expensive and rigid aspects of running an enterprise network. SD-WAN eases this burden by proactively responding to real-time network conditions. It uses programmable network devices that you can modify remotely and through dynamic best-path routing, both of which improve cost, agility, and performance.

SD-WAN Uses and Functions

SD-WAN software running on CPE (customer premises equipment) monitors the conditions of all public and private-line services and determines how to route each type of application traffic. For instance, the default might be to send voice-over-IP (VoIP) traffic over an MPLS VPN service. However, if the MPLS connection becomes congested, the SD-WAN might switch that traffic over to a broadband Internet or 4G LTE wireless circuit. In this way, the SD-WAN enables automatic load balancing and network congestion management for best performance and least-cost effective routing.

SD-WAN FAQs

So, what is an SD-WAN?

Simply put, an SD-WAN is an automated, programmable wide-area network that dynamically and securely routes traffic based on applications policies, network conditions, or WAN circuit priority.

What are the benefits of SD-WAN?

SD-WAN enables local breakout from your various sites, directly to the cloud, which reduces latency and improves application performance. It also reduces costs by eliminating the need to backhaul traffic to a central location, which was the conventional architecture before SD-WAN. Its application-aware path selection further reduces circuit and telecom costs because it allows you to use a less expensive broadband link for non-essential traffic.

Are all SD-WAN solutions the same?

Most of today’s SD-WAN solutions are built on a conventional tunnel-based approach. Tunnels such as IPSec add additional, expensive overhead through the use of headers. This approach consumes precious bandwidth and reduces application performance. Also, application and session visibility are reduced as all application traffic is assigned to a tunnel across, say an MPLS link. Hence, telemetry like latency, jitter, and packet loss is available at the tunnel level only.

Alternatively, a session-centric approach, used in Juniper’s AI-driven SD-WAN, provides granular session-level performance. For example, you can view the latency, jitter, and packet loss for an individual Microsoft Teams video call. And if the link cannot provide the required SLA, then that individual session is instantly routed to a better performing link.

What is an AI-driven SD-WAN?

An AI-driven SD-WAN brings AI-powered insights, anomaly detection, and automated troubleshooting to the SD-WAN. It enables IT administrators to deliver better network experiences to their end users with minimal operational burden on the IT staff. Juniper Mist WAN Assurance delivers this AI capability to the SD-WAN, and correlates SD-WAN performance with wireless and wired network performance. In this way, complete insight and visibility is provided, from client to cloud.

What SD-WAN technology, solutions, and products does Juniper offer?

Juniper offers AI-driven SD-WAN, which combines Juniper Mist WAN Assurance, driven by Mist AI, with Session Smart technology. Juniper SD-WAN delivers the insights, anomaly detection, and automated troubleshooting for day 2 operations.

Session Smart is a unique approach that focuses on applications and user experiences by operating at a more granular session level. For example, a Zoom call is a session. Session Smart Routers can be deployed at remote, distributed sites or as headend devices at your data center or in your cloud, including Amazon Web Services (AWS) and Microsoft Azure. Session Smart Routers can be managed on premises with the Session Smart Conductor or in the Mist Cloud.

Tuesday, 1 November 2022

Juniper Session Smart Router

The Juniper Session Smart™ Router takes software-defined routing and SD-WAN to a new level. It creates an application-aware network fabric that meets the most stringent enterprise performance, security, and availability requirements.

The router overcomes inherent inefficiencies and cost constraints of conventional solutions with breakthrough economics and simplicity. Deploy it as software on customer premises equipment (CPE), on data center network servers, and in the cloud. An appliance version for branch sites offers multiple WAN link options, including 4G/LTE and 5G. The Session Smart Router is centrally manageable using the AI-driven Juniper Mist Cloud or the Juniper Session Smart Conductor platform.

Application-aware routing
Fail-safe service delivery
Orchestration and automation
Zero trust security
Centralized management using the Juniper Mist Cloud or Session Smart Conductor

Features + Benefits

Optimized for User Experience

The only product in the industry with a network routing fabric expressly designed to connect users with unparalleled experiences, not just connect devices.

Breakthrough Economics

Tunnel-less architecture enables up to 75 percent reduction in headend infrastructure costs and 30 to 50 percent reduction in bandwidth costs.

Visibility and Insights

Delivers richer and more granular services and sessions than packet-based router solutions.

Zero Trust Security

The session-aware fabric integrates secure vector routing with zero trust access control, directionality, and segmentation policy.

Scale and Speed

Routing fabric rapidly scales to thousands of sites while accelerating service deployment through centralized orchestration of global policies.

Agility

Session-smart fabric maintains session, tenant, and dynamic workload context end to end, making the network more responsive to underlay conditions.

Application-Based Control

Supports load balancing and traffic steering based on session policies and network status.

Centralized Cloud Management

Simplifies deployment with easy claim-code zero-touch provisioning (ZTP), operated from the Mist AI Cloud.

Saturday, 1 October 2022

vSRX Virtual Firewall

The Juniper vSRX Virtual Firewall offers the same features as physical SRX Series firewalls, including core and next-gen firewall capabilities, networking, and automated lifecycle management, all in a virtualized form factor. It delivers security services scalable to match network demand and operates at speeds up to 100 Gbps.

The vSRX supports Juniper Contrail software-defined networking (SDN) and third-party SDN solutions. It also integrates with cloud orchestration tools such as OpenStack. Junos Space Security Director with Policy Enforcer automates policy enforcement and provides centralized visibility and management of physical and virtual assets through a common interface.

CPU

Memory

4 GB

Disk Space

16 GB

Thursday, 1 September 2022

Junos Space SDK

The Junos Space SDK delivers on the programmability promise of software-defined networking (SDN) by making it easy to create custom analytic and management applications that run on the Junos Space Network Management Platform. The connections and intelligence embedded in the network can be leveraged to create customized management solutions that meet specific needs and to create new revenue streams.

The Junos Space SDK also makes it simple to safely extract data from your network to add intelligence to existing applications and new solutions you create. In this way, you can enable automated responses to application and network conditions that improve the user experience.

Real-time policy management
Energy usage tracking
Custom workflows
Network insight for business intelligence
Correlation of user subscribed services
Policy and QoS management

Features + Benefits

Flexible Applications Based on Behavior

Create better user experiences with networks and applications that make real-time changes based on behavior.

Enhanced Network Visibility and Control

Gain visibility into network activity and control outcomes using apps tailored for your specific analytic and management needs.

Better Access to Network Information

Access network data through the Application-Layer Traffic Optimization (ALTO) protocol, BGP-TE, GenApp interface, and other tools.

Enhanced End-User Experience

Deliver better quality of service and experiences to your customers.

Advanced Orchestration

Improve cost-effectiveness, resource optimization, and personalization of services.

New Revenue Opportunities

Discover new offerings likely to appeal to subscribers based on the data you collect about their habits, buying history, and preferences.

Monday, 1 August 2022

Junos Software Versions - Suggested Releases to Consider and Evaluate

This article applies to the following devices:

ACX Series
EX Series
MX Series
NFX Series
PTX Series
QFX Series
SRX Series

For other Junos devices, refer to the Release Notes and the Alerts column on the Download Software pages.

Notes:

The software versions included in this article are selected by utilizing input from Juniper Engineering, customers, and analysis of field usage data.
To be automatically notified of updates to this document, use the Subscribe link. If you do not see the Subscribe link, log in with your user account.
Juniper Networks offers optional fee-based services to further aide customers in selecting and testing software releases. If interested in more information, please contact your Juniper Sales Representative to discuss offering details and pricing.

Symptoms

For use by customers and Juniper manufacturing planning an upgrade or initial installation.

Exceptions for evaluating these suggested software versions include:

A Juniper engineer has recommended that a customer use a specific version of Junos software that is different from what is listed here in this article.
You require specific features ( Feature Explorer ) that are available only in another version of Junos software. In that case, be sure to download the latest maintenance release.
Your current installed version of Junos is meeting your requirements as is.
If you use NSM, refer to the NSM & Junos Compatibility Matrix to make sure the suggested Junos software version can be managed by NSM.

To see the list of End of Engineering (EOE) and EOS (End of Support) dates for specific Junos versions, please go to the Junos Dates & Milestones page or the Junos OS Evolved Dates & Milestones page

To see features supported per specific Junos versions, please go to the Juniper Pathfinder page and navigate to "Feature Explorer"

Solution

To download Junos Software, go to the Software Download site and find your product.

Suggested Junos Software Versions for your consideration and evaluation are listed in the tables below.

NOTE: To locate a Junos release containing an 'S' (i.e. Junos 17.3R3- S 3), on the Software Download product page change the OS drop-down from Junos to Junos SR

Select to jump to a platform series:

EX Series	MX, PTX Series	ACX Series
NFX Series	QFX Series	SRX Series

EX Series Ethernet Switches

Platform	Junos Software by Platform	Last Updated
EX2200 (See Note 3)	Latest Junos 12.3R12-Sx	1 Feb 2022
EX2200-C ( See Note 3)	Latest Junos 12.3R12-Sx	1 Feb 2022
EX2300	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
EX2300-C	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
EX2300-MP	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
EX3200	Latest Junos 12.3R12-Sx	1 Feb 2022
EX3300 ( See Note 4)	Latest Junos 12.3R12-Sx	1 Feb 2022
EX3400	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
EX4200	Latest Junos 12.3R12-Sx / 15.1R7-Sx	1 Feb 2022
EX4300	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
EX4300-MP	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
EX4400	Latest Junos 21.2R3-Sx	2 Jun 2022
EX4500	Latest Junos 12.3R12-Sx / 15.1R7-Sx	1 Feb 2022
EX4550	Latest Junos 12.3R12-Sx / 15.1R7-Sx	1 Feb 2022
EX4600	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
EX4650	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
EX6200	Latest Junos 12.3R12-Sx / 15.1R7-Sx	1 Feb 2022
EX8200 (See Note 2)	Latest Junos 12.3R12-Sx / 15.1R7-Sx	1 Feb 2022
EX8200-VC (XRE200) (See Note 2 )	Latest Junos 12.3R12-Sx / 15.1R7-Sx	1 Feb 2022
EX9200	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
EX9251	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
EX9253	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
Junos Fusion Enterprise (JFE)	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022

Notes:

It is highly recommended to refer to the Release Notes, Technical Documentation, and KB articles for any outstanding and resolved issues before making the upgrade decision. Contact JTAC if there are any queries.
Please refer to TSB16758 for minimum software requirements for newer revision EX8200 line cards.
Please refer to TSB17138 for more details.
Please refer to TSB17329 .

( back to the top )

ACX Series Service Routers

Platform	Junos Software by Platform	Last Updated
ACX500	Latest Junos 20.2R3-Sx Latest Junos 20.4 (LSV Outdoor) Latest Junos 21.2 (LSV Indoor)	2 Nov 2021
ACX710	Latest Junos 20.4R3-Sx	18 Oct 2021
ACX1000	Latest Junos 20.4R3-Sx Latest Junos 21.2 (LSV)	18 Oct 2021
ACX1100	Latest Junos 20.4R3-Sx Latest Junos 21.2 (LSV)	18 Oct 2021
ACX2000	Latest Junos 20.4R3-Sx Latest Junos 21.2 (LSV)	18 Oct 2021
ACX2100	Latest Junos 20.4R3-Sx Latest Junos 21.2 (LSV)	18 Oct 2021
ACX2200	Latest Junos 20.4R3-Sx Latest Junos 21.2 (LSV)	18 Oct 2021
ACX4000	Latest Junos 20.4R3-Sx Latest Junos 21.2 (LSV)	18 Oct 2021
ACX5448	Latest Junos 20.4R3-Sx	18 Oct 2021
ACX5048 / ACX5096	Latest Junos 20.4R3-Sx	18 Oct 2021
ACX7100	Junos Evolved 21.2R2-S1-EVO	20 Jan 2022

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MX and PTX Series Routers

Platform	Junos Software by Platform	Last Updated
PTX Series (See KB33938 for detail) (Except ones listing below)	Latest Junos 19.4R3-Sx Latest Junos 20.4R3-Sx	26 July 2022
PTX10001-36MR	Latest Junos Evolved 20.4R3-Sx-EVO	26 Jul 2022
PTX10003	Latest Junos Evolved 20.4R3-Sx-EVO	26 Jul 2022
PTX10004	Latest Junos Evolved 20.4R3-Sx-EVO	26 Jul 2022
PTX10008/16 with FAN2/AC2/DC2 Components (Do not use if deploy - JNP10008-SF3)	Latest Junos 19.4R3-Sx Latest Junos 20.2R3-Sx Latest Junos 20.4R3-Sx	26 Jul 2022
PTX10008 with PTX10K-LC1201-36CD and JNP100008-SF3 JNP10K-RE1-E	Latest Junos Evolved 20.4R3-Sx-EVO	26 Jul 2022
PTX10008 with PTX10K-LC1202 and JNP100008-SF3 JNP10K-RE1-E	Latest Junos Evolved 20.4R3-SxEVO	26 Jul 2022
MX Series	Latest Junos 19.4R3-Sx Latest Junos 20.2R3-Sx Latest Junos 20.4R3-Sx	26 Jul 2022
MX Series with MX-SPC3	Latest Junos 21.2R2-Sx	10 Jan 2022
MX 2008/2010/2020	See MX Series
MX240/480/960 with SCBE3	Latest Junos 19.4R3-Sx Latest Junos 20.2R3-Sx Latest Junos 20.4R3-Sx	26 Jul 2022
MX240/480/960 with MPC10E	Latest Junos 20.2R3-Sx Latest Junos 20.4R3-Sx	26 July 2022
MX5, MX10, MX40, MX80, MX104 Series	See MX Series
MX150, MX204, MX10003 Series	See MX Series
MX10008/16 Series	Latest Junos 19.4R3-Sx Latest Junos 20.2R3-Sx LatestJunos 20.4R3-Sx	26 July 2022
MX Series with EVPN MPLS/VXLAN	Latest Junos 20.4R3-Sx	20 Jan 2022
MX Subscriber Management ^(*1)	Latest Junos 20.4R3-Sx	30 Sept 2021
MX Services on MS-MPC/MIC ^(*3)	Latest Junos 21.2R2-Sx	10 Jan 2022
vMX / vBNG ^(*2)	Latest Junos 20.4R3-Sx	30 Sept 2021

Notes:

This includes subscriber management deployments that incorporate services such as CGNAT, etc.
See KB33938 for detailed information and directly downloadable links to software for M/MX/PTX/T-Series JUNOS Software
Recently released hardware may require a software version newer than listed above. Please use the latest Service Release for the required JUNOS software version
Due to feature parity recommended from Product Line Management
MPC11 is not supported in Junos 19.4

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NFX Series Network Services Platform

Platform	Junos Release	Software Architecture	Release Type	Last Updated
NFX150	Junos 20.2R2	nfx-3	Service	08 Jun 2021
NFX250	Junos 18.4R3	nfx-2	Standard	11 May 2020
NFX250-NG	Junos 20.2R2	nfx-3	Standard	08 Jun 2021
NFX350	Junos 20.2R2	nfx-3	Standard	08 Jun 2021

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QFX Series

Platform	Junos Software by Platform	Last Updated
QFX5220/QFX5130/QFX5700	Latest Junos Evolved 21.2R3-Sx	27 May 2022
QFX5100	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
QFX5200	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
QFX5110	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
QFX5120-32C	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
QFX5120 -48Y	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
QFX5120-48T	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
QFX5210	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
QFX10002 / QFX10008 / QFX10016	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
QFX10002-60C	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
EVPN-VXLAN Fabric CRB (Centrally Routed Bridging)	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
EVPN-VXLAN Fabric ERB ( Edge Routed Bridging)	Latest Junos 20.4R3-Sx / 21.2R3-Sx	27 May 2022
IP-Fabric ( QFX10K and QFX5K)	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
VCF-QFX5110	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
VCF-QFX5100	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
VC-QFX5100	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
VC-QFX5110	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
VC-QFX5120	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
VC-QFX5120-32C	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
VC-QFX5200	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
MC-LAG (QFX5K)	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
MC-LAG (QFX10K)	Latest 20.4R3-Sx/21.2R3-Sx	2 Jun 2022
Qfabric (See Note 1)	Junos 14.1X53-D130	30 Jul 2019

Note:

Qfabric NSSU upgrade from Junos 12.2X50 to later releases is NOT recommended. Please see TSB16842 for more details.

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SRX Series Services Gateways

Platform	Junos Software by Platform	Release Type	Last Updated
vSRX	Junos 20.4R3-S1	Service	23 Dec 2021
vSRX 3.0	Junos 20.4R3-S1	Service	23 Dec 2021
SRX100H2 / SRX110H2 / SRX210HE2 / SRX220H2 / SRX240H2	Junos 12.3X48-D105	Standard	16 Oct 2020
SRX300 / SRX320 / SRX340 / SRX345	Junos 20.2R3-S2	Service	08 Oct 2021
SRX380	Junos 20.4R3-S1	Service	23 Dec 2021
SRX550	Junos 12.3X48-D105	Standard	16 Oct 2020
SRX550HM	Junos 20.2R3-S2	Service	08 Oct 2021
SRX650	Junos 12.3X48-D105	Standard	16 Oct 2020
SRX1400	Junos 12.3X48-D105	Standard	16 Oct 2020
SRX1500	Junos 20.4R3-S1	Service	23 Dec 2021
SRX3400 / SRX3600	Junos 12.3X48-D105	Standard	16 Oct 2020
SRX4100 / SRX4200	Junos 20.4R3-S1	Service	23 Dec 2021
SRX4600	Junos 20.4R3-S1	Service	23 Dec 2021
SRX5400 / SRX5600 / SRX5800 with SRX5K-RE3-128G ^(*1)	Junos 20.4R3-S1	Service	23 Dec 2021
SRX5400 / SRX5600 / SRX5800 with RE-1800X4 ^(*1)	Junos 20.4R3-S1	Service	23 Dec 2021
SRX5400 / SRX5600 / SRX5800 with SRX5K-RE-13-20 ^(*1)	Junos 12.3X48-D105 ^(*2)	Standard	16 Oct 2020

Notes:

KB30446 - SRX Junos SRX5K Hardware / Software compatibility matrix.
TSB17655 - On the SRX5000 series with SRX5k RE-13-20 a software upgrade to Junos release 12.3X48-D80, D85, or D90 may fail the pre-check due to insufficient space available on the compact flash.
For Junos OS upgrade paths instructions for SRX platforms, please see KB36620 .
Notes for upgrading from Junos 15.1X49 releases to 19.4R3 or 19.4R3 based Service Releases:
- Junos OS upgrade from 15.1X49 directly to 19.4R3 or 19.4R3 based Service Releases is supported for all SRX platforms (ISSU is not supported). Note: PR1572963 - Junos OS upgrade from 15.1X49 directly to 19.4R3-S2 fails on SRX5400 / SRX5600 / SRX5800.
- In case you would need to roll back or downgrade from 19.4 to the 15.1X49 release on SRX1500, SRX4100/4200, SRX5k, or vSRX, all files on the device may be lost. Hence it is important to back up the relevant files (configuration, license-keys, etc) before the upgrade and have console access during the upgrade and during a potential rollback if required.
- For vSRX the following limitations apply when upgrading from 15.1X49 directly to 19.4R3 or 19.4R3 based Service Releases:
  - The file system mounted on /var usage must be below 14% of capacity.
    Check this with
    root@vsrx> show system storage | match " /var$" /dev/vtbd1s1f 2.7G 82M 2.4G 3% /var
    Note: The CLI command ‘request system storage cleanup’ may help reach that percentage if needed
  - The Junos upgrade image must be placed in the directory /var/host-mnt/var/tmp/
    request system software add /var/host-mnt/var/tmp/
  - It is recommended to deploy a new vSRX VM instead of performing a Junos upgrade. That also gives the option to move from vSRX to the newer and more recommended vSRX 3.0.
- ISSU is not supported when upgrading from Junos 15.1X49 to any higher versions.
- KB34945 - When Junos Space Security Director is used for managing the SRX configuration and the AppFW, IDP, or UTM features are used, then when upgrading to Junos 18.2R1 or higher, the SRX configuration needs to be migrated to the new Unified Policies style and Security Director version 19.3 or higher is required.
- Starting with Junos OS Release 17.3, when you upgrade from Junos OS Release 15.1X49 to Junos OS Release 17.3 or higher, or downgrade from Junos OS Release 17.3 or higher to Junos OS Release 15.1X49, you must update the IPS signature package by downloading and installing the IPS signature package update.

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Modification History

2022-07-26: Update MX and PTX to be the latest 20.4R3-Sx from 20.4R3
2022-06-02: Added Latest 21.2R3-Sx as Suggested Release for all applicable EX/QFX platforms.
2022-05-27 : Added ERB and QFX5130/QFX5220/QFX5700 Suggestion to Latest 21.2R3-Sx
2022-02-22: Added EX2300-MP
2022-01-28: Added QFX5130/QFX5220/QFX5700 EVO Suggestion to 21.2R2-S1 and EVPN ERB updated to have 21.2R2-S1
2022-01-22: Removing EOE software from MX and PTX Suggested Release
2022-01-20: Added MX Series EVPN MPLS/VXLAN with latest 20.4R3-Sx
2021-12-23: Updated for SRX platforms
2021-11-19: Updated ACX7100 to 21.2R1-S2-EVO
2021-10-18: Updated ACX platforms and MX services. Removing M-Series and T-Series since the software has reached EOS
2021-10-08: Updated SRX platforms and updated note 3 with a KB link for Junos OS upgrade paths information.
2021-09-30: Update all MX, PTX both Junos, and Junos EVO to add 20.4R3. Removed 17.3/4R3-Sx as it has reached EOE in August 2021. Adding a link to Juno EVO Date & Milestones page.
Updated vBNG and BNG Releases
2021-08-23: Added EX4400 - 21.1R2
2021-08-19: Added QFX5200 (Nautilus) - EVO suggestion to 18.3R1-EVO
2021-08-10: Update PTX3000 and PTX5000 adding 19.3R3-S3, moving to 18.2R3-S8
2021-06-08: Update NFX150, NFX250-NG, NFX350 to 20.2R2
2021-06-01: Update MX204, MX10000s
2021-05-11: Update PTX Junos Evolve software to 20.4R2-EVO for all PTX Evo platforms
2021-05-04: Update SRX5k to 19.4R3 due to PR 1501752
2021-04-26: Updating SRX1500 to 20.2R3, due to cosmetic fan alarm issue PR1546132 leading to unnecessary RMA's. Also updated SRX380 from 20.2R2 to 20.2R3.
2021-04-13: Updated SRX notes due to upgrade issue from 15.1X49 to 19.4R3-S2 (PR1572963)
2021-04-09: Update Junos-EVO suggestion from 20.4R1-EVO to 20.4R1-S1-EVO
2021-04-02: Removed Note #2 for MX section as MS-DPC is EOL.
2021-04-01: Update MX with 20.2R2-S2 to 20.2R2-S3
2021-03-09: Added a note regarding SRX upgrade from 15.1X49 to later releases.
2021-02-24: Added 20.2R2-S2 for MPC10
2021-02-19: Removed 19.3 from MPC10 Suggested Software, moving to 19.4R3-S1
2021-01-26: Added PTX10001. Update PTX running Junos Evolved to add "Deployment" vs. "Qualify" Software Version (see KB33938 for detail)
2021-01-07: Added PTX10004. Update PTX running Junos Evolved to be 20.4R1-EVO
2021-01-06: Updated for SRX platforms
2020-11-17: Added QFX Architecture( VCF, VC, MC-LAG, IP-Fabric)
2020-11-13: Update most of MX series - update to latest SR, added 19.4R3 for most platforms
2020-11-03: Fixing typo for PTX from 19.2R2-S4 (no such version) to 19.1R2-S4. Consolidate MX2008/2010/2020 to be the MX2000 series.
2020-10-16: Updated for SRX platforms the 12.3X48 release to D105, which is the final release for the 12.3X48 version. Also added an additional note.
2020-10-02: Updated the MS-SPC3/MS-MPC releases. Fixed typo in MX240/480/950 with SCBE3 to MX240/480/960 with SCBE3.
2020-08-24: Consolidate PTX series to simplify the display. Create pointer to KB33938 for detail information
2020-07-29: Updated SRX4600 from 18.4R3-S4 to 18.4R3-S3 due to an issue which may occur during installation of 18.4R3-S4 (PR1528203)
2020-07-16: Updated SRX, PTX10003 platforms
2020-07-09: MX Subscriber Management and vBNG recommendations modified to 19.1R3-S1 and 19.4R1-S2
2020-07-07: Updated SRX Note 4 about direct upgrade from Junos 15.1X49 to 18.4R3. Added the exception for SRX5k due to PR1505864
2020-06-26: Updated ACX5448
2020-06-16: Updated SRX Note 4 about direct upgrade from Junos 15.1X49 to 18.4R3
2020-06-05: Updated SRX5k platform with RE3 / SCB4 / IOC4 and added a note.
2020-06-01: Update MX2000s with MPC11E to be 20.1R1 - reason - MACSEC support and feature parities
2020-05-15: Update PTX10003 to be 19.4R2-S1-EVO
2020-05-12: Adding MPC10E - previously missing from the list
2020-05-11: Added NFX Series section, and NFX platforms
2020-04-24: Updated SRX platforms
2020-04-21: Update MX, PTX software. Adding PTX10003, PTX10008 with LC1201-36CD and JNP10008-SF3
2020-03-30: Updated SRX Note3 for more precise listing of unsupported features in current JRR 18.2 versions.
2020-03-30: Added SRX380 platform
2020-03-02: Updated the SRX platforms which support up to Junos 12.3X48 releases
2020-01-29: Remove 16.1 from M-Series since their last version is 15.1
2020-01-22: Updated ACX5448
2020-01-13: SRX platforms updated; Deleted row for SRX Branch devices with 1G RAM due to EOS reached (see TSB17084 and the Junos Dates & Milestones page for details)
2020-01-13: MX, PTX platforms updated: Removing 15.1R7 due to reaching EOS
2019-12-30: Adding MX-SPC3 with 19.3R2 as the minimum required software
2019-12-26: updated PTX10008/16 with AC2, DC2, FAN2 recommends 19.2R1-2
2019-12-13: non-technical format changes.
2019-12-13: updated MX10008 to 19.2R1-S2
2019-12-12: updated MX204, MX10003 from 17.4R2-S8 to 18.2R3-S1
2019-12-04: Add MX2000s with MPC11 and SFB3 2019-10-23: Corrected the download links for Junos 18.2R3 images at the SRX300 series and SRX550HM. 2019-10-21: Changed MSMPC/MSDPC recommendation from S5 to S3 due to session affinity changes in S4 that cause instability.
2019-10-15: Updated SRX300 series and SRX550HM to 18.2R3 from 18.2R3-S1 due to DHCP server issue PR1464267 affecting 18.2R3-S1 but not affecting 18.2R3.
2019-10-11: Cleanup for SRX table. Combined SRX100/200 platforms which have the same recommended release in a row. Removed notes for EOL releases. Updated note 2 to link to TSB17655.
2019-10-11: Updated MX Subscriber to release 18.2R3-S1
2019-09-30: Updated SRX4600, SRX5k-SPC3, SRX200, 300, 550(M), 650 series, and SRX1k/3k, added new entries for the vSRX 3.0 and SRX5k RE3/IOC4/SCB4
2019-07-25: Updated MX Subscriber and MX Services information
2019-07-21: Adding "Important Software Upgrade Notification" at the beginning
2019-06-25: Add a link to KB33938 for details of M-Series, MX-Series, PTX-Series, and T-Series
2019-04-25: Corrected SRX download links
2019-04-16: Updated SRX releases
2019-04-10: Fixed QFabric and EX6200 links.
2019-03-19: Removing EOL released from M-series, and T-series
2019-03-01: Added note on how to locate Junos release versions containing an 's'
2019-02-28: Updated for several SRX platforms; added a link to Feature Explorer.
2019-01-30: Fixed broken links for MX and vMX.
2018-12-19: Updated JRR for SRX5k with SPC3
2018-10-15: Updated SRX JRR versions and removed SRX210B and SRX210H platforms due to EOS reached.
2018-10-05: SRX: Move direct link to JRR version to the middle column that references JRR version
2018-10-03: SRX: Added direct link to JRR version per platform
2018-09-26: Removed J-Series platforms, due to EOS reached.
2018-06-25: Updated releases for ACX, MX, and vMX platforms.
2018-05-17: Corrected link to SRX4600's software download page.
2018-05-15: Updated the recommended release for ACX5048 / ACX5096
2017-11-16: Updated VRR to 16.2
2017-04-18: Added jump links for quick access to platform series sections

Related Information

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