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Junos OS Release Notes for NFX Series

 

These release notes accompany Junos OS Release 17.3R3 for the NFX Series. They describe new and changed features, limitations, and known and resolved problems in the hardware and software.

You can also find these release notes on the Juniper Networks Junos OS Documentation webpage, located at https://www.juniper.net/documentation/product/en_US/junos-os.

New and Changed Features

This section describes the new features and enhancements to existing features in the Junos OS main release and the maintenance releases for NFX Series.

Release 17.3R3 New and Changed Features

There are no new features or enhancements to existing features for NFX Series in Junos OS Release 17.3R3.

Release 17.3R2 New and Changed Features

There are no new features or enhancements to existing features for NFX Series in Junos OS Release 17.3R2.

Release 17.3R1 New and Changed Features

Juniper Device Manager

  • Support for Virtual Route Reflector (NFX250-S2)—Starting in Junos OS Release 17.3R1, you can implement the virtual router reflector capability by creating and deploying a VRR virtual machine as a VNF (Virtual Network Function) on the NFX250-S2 device. Benefits of implementing virtual route reflectors are:

    • Improved sacalability

    • Fast and more flexible deployment

    • Savings as a result of elimination of router hardware

Changes in Behavior and Syntax

There are no changes in behavior and syntax for NFX Series in Junos OS Release 17.3R2.

Known Behavior

There are no known limitations in Junos OS Release 17.3R3 for NFX Series.

For the most complete and latest information about known Junos OS defects, use the Juniper Networks online Junos Problem Report Search application.

Known Issues

There are no known issues in hardware and software in Junos OS Release 17.3R3 for NFX Series.

For the most complete and latest information about known Junos OS defects, use the Juniper Networks online Junos Problem Report Search application.

Resolved Issues

There are no fixed issues in Junos OS Release 17.3R3 for NFX Series.

Documentation Updates

There are no errata or changes in Junos OS Release 17.3R3 documentation for NFX Series.

Migration, Upgrade, and Downgrade Instructions

This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS for the NFX Series. Upgrading or downgrading Junos OS might take several hours, depending on the size and configuration of the network.

Upgrade and Downgrade Support Policy for Junos OS Releases

Support for upgrades and downgrades that span more than three Junos OS releases at a time is not provided, except for releases that are designated as Extended End-of-Life (EEOL) releases. EEOL releases provide direct upgrade and downgrade paths—you can upgrade directly from one EEOL release to the next EEOL release even though EEOL releases generally occur in increments beyond three releases.

You can upgrade or downgrade to the EEOL release that occurs directly before or after the currently installed EEOL release, or to two EEOL releases before or after. For example, Junos OS Releases 14.1, 14.2, 15.1 and 16.1 are EEOL releases. You can upgrade from Junos OS Release 14.1 to Release 15.1 or even from Junos OS Release 14.1 to Release 16.1. However, you cannot upgrade directly from a non-EEOL release that is more than three releases ahead or behind.

To upgrade or downgrade from a non-EEOL release to a release more than three releases before or after, first upgrade to the next EEOL release and then upgrade or downgrade from that EEOL release to your target release.

For more information on EEOL releases and to review a list of EEOL releases, see https://support.juniper.net/support/eol/software/junos/.

Product Compatibility

Hardware Compatibility

To obtain information about the components that are supported on the devices, and special compatibility guidelines with the release, see the Hardware Guide and the Interface Module Reference for the product.

To determine the features supported on NFX Series in this release, use the Juniper Networks Feature Explorer, a Web-based application that helps you to explore and compare Junos OS feature information to find the right software release and hardware platform for your network. Find Feature Explorer at: https://pathfinder.juniper.net/feature-explorer/.

Hardware Compatibility Tool

For a hardware compatibility matrix for optical interfaces and transceivers supported across all platforms, see the Hardware Compatibility tool.