Junos OS Release Notes for NFX Series

 

These release notes accompany Junos OS Release 17.4R2 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 17.4R2 New and Changed Features

There are no new features or enhancements to existing features for NFX Series in Junos OS Release 17.4R2.

Release 17.4R1 New and Changed Features

There are no new features or enhancements to existing features for NFX Series in Junos OS Release 17.4R1.

Note

vSRX version 15.1X49-D100 is compatible with the Junos OS Release 17.4R1 for NFX Series devices.

Changes in Behavior and Syntax

There are no changes in behavior and syntax for NFX Series in Junos OS Release 17.4R2.

Known Behavior

There are no known limitations in Junos OS Release 17.4R2 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

This section lists the known issues in hardware and software in Junos OS Release 17.4R2 for the NFX Series devices.

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

Known Issues: 17.4R2

  • When dscp and dscp-ipv6 classifiers are configured together on L2 interface, the functionality may not work as expected

    PR1169529

Known Issues: 17.4R1

There are no known issues for NFX Series in Junos OS Release 17.4R1.

Resolved Issues

There are no fixed issues in Junos OS Release 17.4R2 for NFX Series.

Documentation Updates

There are no errata or changes in Junos OS Release 17.4R2 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.

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://www.juniper.net/support/eol/junos.html.

Basic Procedure for Upgrading to Release 17.4

When upgrading or downgrading Junos OS, use the jinstall package. For information about the contents of the jinstall package and details of the installation process, see the Installation and Upgrade Guide. Use other packages, such as the jbundle package, only when so instructed by a Juniper Networks support representative.

Note

Back up the file system and the currently active Junos OS configuration before upgrading Junos OS. This allows you to recover to a known, stable environment if the upgrade is unsuccessful. Issue the following command:

Note

The installation process rebuilds the file system and completely reinstalls Junos OS. Configuration information from the previous software installation is retained, but the contents of log files might be erased. Stored files on the router, such as configuration templates and shell scripts (the only exceptions are the juniper.conf and ssh files), might be removed. To preserve the stored files, copy them to another system before upgrading or downgrading the routing platform. For more information, see the Junos OS Administration Library.

Note

We recommend that you upgrade all software packages out of band using the console because in-band connections are lost during the upgrade process.

To download and install Junos OS Release 17.4R2:

  1. Using a Web browser, navigate to the All Junos Platforms software download URL on the Juniper Networks webpage:

    https://www.juniper.net/support/downloads/

  2. Select the name of the Junos OS platform for the software that you want to download.
  3. Select the release number (the number of the software version that you want to download) from the Release drop-down list to the right of the Download Software page.
  4. Select the Software tab.
  5. In the Install Package section of the Software tab, select the software package for the release.
  6. Log in to the Juniper Networks authentication system using the username (generally your e-mail address) and password supplied by Juniper Networks representatives.
  7. Review and accept the End User License Agreement.
  8. Download the software to a local host.
  9. Copy the software to the device or to your internal software distribution site.
  10. Install the new jinstall package on the device.

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 devices 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/.

NFX250 Software Version Compatibility

This section lists the vSRX and Cloud CPE Solution software releases that are compatible with the Junos OS releases on the NFX250 platform:

Table 1: Software Compatibility Details with vSRX and Cloud CPE Solution

NFX250 Junos OS Release

vSRX

Cloud CPE Solution

15.1X53-D40.3

15.1X49-D40.6

Cloud CPE Solution 2.0

15.1X53-D41.6

15.1X49-D61

Cloud CPE Solution 2.1

15.1X53-D102.2

15.1X49-D61

Cloud CPE Solution 3.0

15.1X53-D47.4

15.1X49-D100.6

Cloud CPE Solution 3.0.1

Table 2: Software Compatibility Details with Only vSRX Installed

NFX250 Junos OS Release

vSRX

15.1X53-D40.3

15.1X49-D40.6

15.1X53-D41.6

15.1X49-D40.6

15.1X53-D45.3

15.1X49-D61

15.1X53-D47.4

15.1X49-D78.3

17.2R1

15.1X49-D75

17.3R1

15.1X49-D100

17.4R1

15.1X49-D100

Hardware Compatibility Tool

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