Juniper : Introduction to the Junos Operating System

Sunday, 1 February 2026

Junos OS Evolved

Junos OS Evolved is a unified, end-to-end network operating system designed for cloud-scale deployments. Delivering reliability, agility, and open programmability, it empowers businesses to adapt to evolving demands. With high availability, fine-grained visibility, and high feature velocity, Junos OS Evolved enables you to accelerate deployments, innovate more rapidly, and operate your network more efficiently. And because it’s aligned with Junos OS, seamless management continuity is assured.

Linux-native
Scalable and reliable state-based architecture
Open and programmable
Rich visibility and analytics
Built-in security

Thursday, 1 January 2026

Junos OS Release 24.4R1

Junos OS runs on the following Juniper Networks® hardware: ACX Series, cRPD, cSRX, EX Series, JRR Series, Juniper Secure Connect, MX Series, NFX Series, QFX Series, SRX Series Firewalls, and vSRX Virtual Firewall. This release notes accompany Junos OS Release 24.4R1. They describe new and changed features, limitations, and known and resolved problems in the hardware and software.

You can find release notes for all Junos OS releases at https://www.juniper.net/documentation/product/us/en/junos-os#cat=release_notes.

Monday, 1 December 2025

相遇开始

只是戏总会结束再不舍都要结束。

我想坚持只是没有勇气继续坚持。

深呼吸，继续安静的喜欢吧，等喜欢完了就会醒了。

在梦里我继续编织，从你我在山顶上相遇开始

Saturday, 1 November 2025

Arista vs. Juniper: Data Center Switch Cost Comparison

Key Takeaways

Hardware Price: Juniper is often perceived as having a more aggressive initial hardware price point compared to Arista.
Operational Cost (OpEx): Both companies offer world-class operating systems (EOS and JUNOS/Mist AI) that excel at automation. The OpEx savings from high stability and powerful management platforms (CloudVision vs. Mist/Apstra) are the most important factor in TCO for a large-scale data center.
Licensing Complexity: Arista is generally preferred for its simpler, more predictable licensing, while Juniper's model, particularly for certain features, can be more complex to budget for in the long run.

Ultimately, the most cost-effective choice for a data center depends on:

Scale: For massive hyperscale deployments, Arista's focus on density and stability often proves cost-efficient.
Existing Infrastructure: Compatibility with existing automation tools and operational expertise (e.g., familiar with JUNOS vs. EOS) can drastically change OpEx.
Required Features: If specific advanced features (like deep automation via Apstra or Mist AI) are required, the cost of the corresponding licenses must be factored in.