Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

ON THIS PAGE

Junos OS Release Notes for vMX

 

These release notes accompany Junos OS Release 20.2R3 for vMX. 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.

What’s New

Learn about new features introduced in the Junos OS main and maintenance releases for vMX.

What's New in Release 20.2R3

There are no new features for vMX in Junos OS Release 20.2R3.

What's New in Release 20.2R2

There are no new features for vMX in Junos OS Release 20.2R2.

What's Changed

Learn about what changed in the Junos OS main and maintenance releases for vMX.

What’s Changed in Release 20.2R3

Junos OS XML API and Scripting

  • Refreshing scripts from an HTTPS server requires a certificate (ACX Series, EX Series, MX Series, PTX Series, QFX Series, SRX Series, vMX, and vSRX)—When you refresh a local commit, event, op, SNMP, or Juniper Extension Toolkit (JET) script from an HTTPS server, you must specify the certificate (Root CA or self-signed) that the device uses to validate the server's certificate, thus ensuring that the server is authentic. In earlier releases, when you refresh scripts from an HTTPS server, the device does not perform certificate validation.

    When you refresh a script using the request system scripts refresh-from operational mode command, include the cert-file option and specify the certificate path. Before you refresh a script using the set refresh or set refresh-from configuration mode command, first configure the cert-file statement under the hierarchy level where you configure the script. The certificate must be in Privacy-Enhanced Mail (PEM) format.

    [See request system scripts refresh-from and cert-file.]

What’s Changed in Release 20.2R2

There are no changes in behavior or syntax for vMX in Junos OS Release 20.2R2.

Known Limitations

There are no known behaviors and limitations for vMX in Junos OS Release 20.2R3.

Open Issues

There are no open issues for vMX in Junos OS Release 20.2R3.

Resolved Issues

Learn which issues were resolved in the Junos OS main and maintenance releases for vMX.

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

Resolved Issues: 20.2R3

There are no resolved issues for vMX in Junos OS Release 20.2R3.

Resolved Issues: 20.2R2

Platform and Infrastructure

  • Configuring the ranges statement for autosensed VLANs might not work on the vMX platforms. PR1503538

Licensing

Starting in Junos OS Release 19.2R1, Juniper Agile Licensing introduces a new capability that significantly improves the ease of license management network wide. The Juniper Agile License Manager is a software application that runs on your network and provides an on-premise repository of licenses that are dynamically consumed by Juniper Networks devices and applications as required. Integration with Juniper's Entitlement Management System and Portal provides an intuitive extension of the existing user experience that enables you to manage all your licenses.

  • The Agile License Manager is a new option that provides more efficient management of licenses, but you can continue to use individual license keys for each device if required.

  • To use vMX or vBNG feature licenses in Junos OS Release 19.2R1 version, you need new license keys. Previous license keys will continue to be supported for previous Junos OS releases, but for the Junos OS 19.2R1 Release and later you need to carry out a one-time migration of existing licenses. Contact Customer Care to exchange previous licenses. Note that you can choose to use individual license keys for each device, or to deploy Agile License Manager for more efficient management of licenses.

  • For more information about Agile Licensing keys and capabilities, see Juniper Agile Licensing portal FAQ.

See Juniper Agile Licensing Guide for more details on how to obtain, install, and use the License Manager.

Upgrade Instructions

You cannot upgrade Junos OS for the vMX router from earlier releases using the request system software add command.

You must deploy a new vMX instance using the downloaded software package.

Remember to prepare for upgrades with new license keys and/or deploying Agile License Manager.