Junos OS Release Notes for JRR Series
These release notes accompany Junos OS Release 20.1R3 for JRR Series. They describe new and changed features, limitations, and known and resolved problems in the hardware.
You can 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
There are no new features or enhancements to existing features for JRR Series in Junos OS Release 20.1R3.
What's Changed
There are no changes in behavior and syntax for JRR Series in Junos OS Release 20.1R3.
Known Limitations
There are no known limitations for JRR Series in Junos OS Release 20.1R3.
For the most complete and latest information about known Junos OS defects, use the Juniper Networks online Junos Problem Report Search application.
Open Issues
There are no open issues for JRR Series in Junos OS 20.1R3 Release.
Resolved Issues
Learn about resolved issues for JRR Series in Junos OS 20.1R3 Release.
For the most complete and latest information about known Junos OS defects, use the Juniper Networks online Junos Problem Report Search application.
Resolved Issues: 20.1R3
General Routing
When performing the request system power-off command on JRR200 platform, the device might reboot instead of shutting down. Then, the traffic might be lost until the system reboot. Additionally, if request system halt command is executed, some of the physical interfaces remains up which might cause traffic impact. PR1534795
The factory default configuration on JRR200 does not have vendor-id option configured on the interfaces (em0; em2-em9) and as a result DHCP option 60 is not sent out to the DHCP/ZTP server during the ZTP process. PR1582038
Resolved Issues: 20.1R2
General Routing
Link state of virtual em interfaces in Junos OS might not reflect the true link status of corresponding physical interfaces in the Linux host. PR1492087
The tcp_timer_keep log messages flood continuously on JRR200. PR1533168
Resolved Issues: 20.1R1
General Routing
JRR200: USB install image is not working. PR1471986
Documentation Updates
There are no errata or changes in Junos OS Release 20.1R3 documentation for JRR200 Route Reflectors.
Migration, Upgrade, and Downgrade Instructions
This section contains the upgrade and downgrade support policy for Junos OS for the JRR Series Route Reflector. Upgrading or downgrading Junos OS might take several minutes, depending on the size and configuration of the network.
For information about software installation and upgrade, see the Installation and Upgrade Guide.
Upgrade and Downgrade Support Policy for Junos OS Releases
We have two types of releases, EOL and EEOL:
End of Life (EOL) releases have engineering support for twenty four months after the first general availability date and customer support for an additional six more months.
• Extended End of Life (EEOL) releases have engineering support for thirty six months after the first general availability date and customer support for an additional six more months.
For both EOL and EEOL releases, you can upgrade to the next three subsequent releases or downgrade to the previous three releases. For example, you can upgrade from 19.2 to the next three releases – 19.3, 19.4 and 20.1 or downgrade to the previous three releases – 19.1, 18.4 and 18.3.
For EEOL releases only, you have an additional option - you can upgrade directly from one EEOL release to the next two subsequent EEOL releases, even if the target release is beyond the next three releases. Likewise, you can downgrade directly from one EEOL release to the previous two EEOL releases, even if the target release is beyond the previous three releases. For example, 19.2 is an EEOL release. Hence, you can upgrade from 19.2 to the next two EEOL releases – 19.3 and 19.4 or downgrade to the previous two EEOL releases – 19.1 and 18.4.4.
Release Type | End of Engineering (EOE) | End of Support (EOS) | Upgrade and Downgrade to subsequent 3 releases | Upgrade and Downgrade to subsequent 2 EEOL releases |
End of Life (EOL) | 24 months | End of Engineering + 6 months | Yes | No |
Extended End of Life (EEOL) | 36 months | End of Engineering + 6 months | Yes | Yes |
For more information about EOL and EEOL releases, see https://www.juniper.net/support/eol/junos.html.
For information about software installation and upgrade, see the Installation and Upgrade Guide.