Articles by tag "Junos OS"

1. Mastering Your Juniper Switch: Default Username and Password Guide
   Selene Gong

   50
   Juniper Networks devices—including EX series switches, SRX firewalls, and routers—are widely used in enterprise networks. Understanding the default username and password is essential for initial setup, troubleshooting, and secure configuration. While default credentials simplify first login, ...
2. Juniper EX2300/EX3400 Password Recovery Guide for Network Engineers
   Selene Gong

   36
   For any network engineer or IT administrator, being locked out of a critical Juniper EX2300 or EX3400 switch during a maintenance window or audit is a high-stress scenario. Whether the device was inherited from a previous IT team or the root password was misplaced, performing a Juniper EX2300 ...
3. Safe and Efficient Juniper EX Switch Firmware Update Guide
   Selene Gong

   32
   Updating firmware on Juniper EX switches is essential to maintain security, stability, and compatibility with new features. However, improper firmware upgrades can lead to unexpected downtime, configuration loss, or network instability, disrupting critical business operations. This guide ...
4. Choosing the Right Junos OS: Juniper Recommended Version Guide for EX, QFX, and MX Series
   Selene Gong

   35
   Upgrading or selecting the right Junos OS version for production Juniper devices is one of the most critical tasks for IT managers and network engineers. Choosing a version too early can introduce bugs and connectivity issues, while sticking to outdated versions can expose networks to security ...
5. Juniper EX4300 vs. Cisco Catalyst 9300: Performance and Feature Shootout
   Selene Gong

   37
   When designing or upgrading enterprise access and aggregation layers, selecting the right switch is a critical long-term decision. Modern networks must support high-bandwidth applications, dense Wi-Fi deployments, and growing IoT traffic while maintaining reliability, scalability, and ...
6. SRX340 EOL: Lifecycle, Replacement, and Seamless Upgrade Guide
   Selene Gong

   31
   For enterprise network administrators and IT infrastructure managers, monitoring the lifecycle of core security appliances is critical. If your branch or office network relies on the Juniper SRX340, understanding its end-of-life (EOL) milestones is essential to maintain network security and ...
7. Juniper EX4300 Third-Party Transceiver Compatibility
   Selene Gong

   18
   When you are performing a midnight maintenance window in a US-based enterprise data center, migrating core uplinks to a newly racked Juniper EX4300, the last thing you need is a silent packet drop or a hard-down interface. You plug in a third-party 10G SFP+ or 40G QSFP+ transceiver, and the link ...