--- title: Junos OS Reviews meta_title: 'Junos OS Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter 35 reviews by the users' company size, role or industry to find out how Junos OS works for a business like yours. aggregate_rating: rating_value: 4.6 review_count: 35 scale: '5' date_modified: '2026-07-17' parent_category: name: IT Infrastructure url: https://www.g2.com/categories/it-infrastructure --- # Junos OS Reviews **Vendor:** Juniper Networks **Category:** [Operating Systems](https://www.g2.com/categories/operating-system) **Average Rating:** 4.6/5.0 **Total Reviews:** 35 ## About Junos OS Junos OS is a secure, open, and programmable network operating system that serves as the foundation for Juniper Networks' routing, switching, and security devices. Designed to automate network operations with precision, Junos OS enhances operational efficiency and frees up valuable resources, enabling organizations to focus on growth and innovation. Its modular architecture ensures high availability, reliability, and scalability, making it suitable for a wide range of network environments. Key Features and Functionality: - Automation Frameworks: Supports integration with open-source automation tools like Puppet, Chef, Ansible, and Salt, facilitating seamless network management and reducing manual tasks. - Programmability: Offers the Juniper Extension Toolkit (JET) API, providing open access to control, management, and data plane services, enabling customized network solutions. - Telemetry: Incorporates the Junos Telemetry Interface (JTI), a scalable engine that streams real-time network data, enhancing visibility and proactive issue resolution. - Open Data Models: Utilizes standardized YANG models and OpenConfig, promoting interoperability and simplifying network configuration and management. - High Availability: Features like Junos Continuity allow for non-disruptive hardware upgrades, ensuring uninterrupted service during maintenance. Primary Value and Solutions Provided: Junos OS addresses the complexities of modern network management by automating repetitive tasks, thereby reducing operational costs and minimizing human errors. Its open and programmable nature empowers organizations to rapidly deploy and customize network services, enhancing agility and responsiveness to changing business needs. The system's modular design and high availability features ensure reliable and scalable network performance, supporting the demands of cloud-native applications, IoT, and 5G technologies. By providing a consistent operating system across various devices, Junos OS simplifies training and operations, leading to a lower total cost of ownership and a more efficient network infrastructure. ## Junos OS Pros & Cons **What users like:** - Users value the **cloud integration and virtualization support** of Junos OS, enhancing operational efficiency through independent control and forwarding. (1 reviews) - Users value the **consistent CLI** of Junos OS for its stability and safe automation-friendly configuration management. (1 reviews) - Users value the **support for virtualization and cloud integration** , enhancing the flexibility and efficiency of their operations. (1 reviews) - Users value the **reliability** of Junos OS, appreciating its consistent performance and ease of daily operations. (1 reviews) - Users praise the **rock-solid stability** of Junos OS, ensuring reliable performance in their networking environments. (1 reviews) - Users value the **rock-solid stability** of Junos OS, ensuring reliable performance and effective virus protection. (1 reviews) **What users dislike:** - Users find the **skill requirements challenging** , citing a steep learning curve and complex licensing as major obstacles. (3 reviews) - Users face a **high cost** due to complex licensing requirements, making access to features challenging and less user-friendly. (1 reviews) - Users face a **steep learning curve** with Junos OS, finding it challenging to navigate due to complex licensing. (1 reviews) ## Junos OS Reviews ### 1. JUNOS OS PRINCIPALS **Rating:** 5.0/5.0 stars **Reviewed by:** Jeffrey K. | VICE PRESIDENT OF HUMAN RESOURCES, Small-Business (50 or fewer emp.) **Reviewed Date:** December 17, 2025 **What do you like best about Junos OS?** JUNOS OS SUPPORT FOR VIRTUALIZATION AND CLOUD INTEGRATION. THE SEPARATION OF CONTROL AND FORWARDING ALLOWS FOR INDEPENDENT OPERATION. **What do you dislike about Junos OS?** JUNOS OS HAS A STEEP LEARNING CURVE, NOT PARTICULARLY USER-FRIENDLY. ACCESS TO FEATURES OFTEN REQUIRES COMPLEX LICENSING WHICH CAN BE A BARRIER FOR SOME USERS. **What problems is Junos OS solving and how is that benefiting you?** JUNOS OS OFFERS A COMPREHENSIVE NETWORK MANAGEMENT AND MONITORING SYSTEM. OFFERS EXTENSIVE AUTOMATION CAPABILITIES THROUGH SCRIPTING AND PROGRAMMABLE INTERFACES. ### 2. Excellent Solution for Cisco-Savvy Teams **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Education Management | Mid-Market (51-1000 emp.) **Reviewed Date:** December 09, 2025 **What do you like best about Junos OS?** As a network administrator, I consider Junos OS one of the most reliable and consistent network operating systems on the market. Its clean architecture, predictable behavior, and automation-friendly design make daily operations significantly easier. **What do you dislike about Junos OS?** For IT teams familiar with Cisco, there is a some similarities but there is a difficulty to easy understand it without proper training and experience. **What problems is Junos OS solving and how is that benefiting you?** Junos OS solves network complexity and reliability issues by providing a consistent, stable, and automation-friendly platform that makes managing and troubleshooting the network faster and more efficient. ### 3. A Stable, Consistent, and Automation-Ready Network Operating System **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Enterprise (> 1000 emp.) **Reviewed Date:** August 11, 2025 **What do you like best about Junos OS?** Consistent CLI, rock-solid stability, and safe, automation-friendly configuration management. **What do you dislike about Junos OS?** Steep learning curve for newcomers and feature access often tied to complex licensing. **What problems is Junos OS solving and how is that benefiting you?** It solved the need for a consistent, reliable network OS across devices, reducing configuration errors and improving change safety, which saved me time and minimized downtime. ### 4. JUNOS the Excellent OS for Juniper Network/security devices **Rating:** 5.0/5.0 stars **Reviewed by:** Moazzam A. | Enterprise (> 1000 emp.) **Reviewed Date:** August 16, 2023 **What do you like best about Junos OS?** Good modular approach , gives you option to rollback the configuration .Further its regular updates and inclusion of all latest technologies like SDWAN and so , makes it better network device software for the devices specially juniper switches and firewalls, its far better than juniper previous netscreen software. **What do you dislike about Junos OS?** Power disruption intentiaonal or accidently very easily currupt the OS and configuration , its needs to be improved with any mechanism so device can return to normal on these cold boots. **What problems is Junos OS solving and how is that benefiting you?** JUNOS is helping in hte juniper devices that is switches , firewalls which we are using and being users of these devices we are daily working on this OS and found it reliable , secure and flexible with good rollback features. ### 5. Future platform is here **Rating:** 4.0/5.0 stars **Reviewed by:** Vishal G. | DGM VSAT Planning and Engineering , Mid-Market (51-1000 emp.) **Reviewed Date:** June 19, 2023 **What do you like best about Junos OS?** Automation for network devices, less human error and machine automation is always more advantageous over human. Operational efficiency improved and resource utilisation for improvement to routine work **What do you dislike about Junos OS?** Complex learning, not user-friendly GUI. Need expert people to take care of devices **What problems is Junos OS solving and how is that benefiting you?** Network Automation, resource minimizing and product efficiency ### 6. Junos OS **Rating:** 4.5/5.0 stars **Reviewed by:** Job C. | Small-Business (50 or fewer emp.) **Reviewed Date:** April 02, 2023 **What do you like best about Junos OS?** I like the saving configuration method, where you can perform commit-check to check if there's any syntax or configuration error before executing the commands. **What do you dislike about Junos OS?** When you're new to the Junos OS, it might be not easy to adopt to the way how you configure Juniper devices. You need some familiarity and enough knowledge to used this Junos OS **What problems is Junos OS solving and how is that benefiting you?** It has different Memory/CPU resources for services that is running that make the Juniper devices more efficient and stable on the long run. ### 7. Performance for core network **Rating:** 4.5/5.0 stars **Reviewed by:** Neethu S. | Operations Support Engineer, Mid-Market (51-1000 emp.) **Reviewed Date:** April 07, 2023 **What do you like best about Junos OS?** Command level documentation is very useful for public users. Easy to learn new concepts. Used in all core networks with performance at it's peak. WebGuI is also an outstanding backup. **What do you dislike about Junos OS?** Variations in command with traditional show commands sometimes takes time to learn. Expecting better WebGUI. **What problems is Junos OS solving and how is that benefiting you?** Benefit for all my core routers. MPLS routing became easier and performance were not degraded. Security rich updates and less vulnerability helps achieving business goals easily. ### 8. Junos - the network plus security OS **Rating:** 4.5/5.0 stars **Reviewed by:** vikram k. | Network and security architect, Enterprise (> 1000 emp.) **Reviewed Date:** June 01, 2022 **What do you like best about Junos OS?** Juniper's latest OS junOS is simple yet very powerful. Love the architechture. **What do you dislike about Junos OS?** Wish they had easier config options from GUI. Clustering is a little complicated too. For a trained resource its not but when compared with product like Pan Os where upgrade is so simple, it lacks behind. **What problems is Junos OS solving and how is that benefiting you?** Securing my network as we as connecting huge enterprisr networks in single OS and single appliance. ### 9. Very versatile OS. Very lightweight. **Rating:** 4.5/5.0 stars **Reviewed by:** Rashid Z. | General Manager Networks One Network Pvt Ltd, Enterprise (> 1000 emp.) **Reviewed Date:** June 18, 2022 **What do you like best about Junos OS?** Easy to manage and update. No hassle of updating the boot os while updating the Junos device firmware **What do you dislike about Junos OS?** It is fragile as it is easily corrupted due to frequent power boots **What problems is Junos OS solving and how is that benefiting you?** The Junos os helps in configuration of devices for different network features. Solves common issues of routing and security. ### 10. Junos OS effective and simple **Rating:** 4.5/5.0 stars **Reviewed by:** Vishnu T. | Engineer-Network management, Enterprise (> 1000 emp.) **Reviewed Date:** February 20, 2022 **What do you like best about Junos OS?** Junos OS is is user friendly and yet effective with all the in built security features. **What do you dislike about Junos OS?** Nothing as such to dislike about Junos OS. **Recommendations to others considering Junos OS:** junos OS is built with all security features so it is quite safe to use yet easy to handle for users. **What problems is Junos OS solving and how is that benefiting you?** It gives fantastic user experience and also secure. It is easy to use for everyday task related to shell. ## Junos OS Discussions - [Is Juniper Linux based?](https://www.g2.com/discussions/is-juniper-linux-based) - 1 comment - [View Junos OS pricing details and edition comparison](https://www.g2.com/products/junos-os/reviews/junos-os-review-4415196?section=pricing&secure%5Bexpires_at%5D=2026-07-17+06%3A46%3A04+-0500&secure%5Bsession_id%5D=9fac3f0e-1ec3-45d4-822a-19e45242e19c&secure%5Btoken%5D=b9fc27f995fac1c2e8c0f0d7e5a659a5209a569bb07da7afad038bbd4008cd2e&format=llm_user) ## Junos OS Features **Memory Management - Operating System** - RAM management **Device Management - Operating System** - I/O management **Backup and Recovery - Operating System** - Data backup **Error Detection - Operating System** - System operations monitoring ## Top Junos OS Alternatives - [VyOS](https://www.g2.com/products/vyos/reviews) - 4.5/5.0 (55 reviews) - [Ubuntu](https://www.g2.com/products/ubuntu/reviews) - 4.5/5.0 (2,341 reviews) - [CentOS](https://www.g2.com/products/centos/reviews) - 4.4/5.0 (408 reviews)