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Junos OS upgrade recommendation to the specific versions that support i40e-2.4.3/NVM-6.01 for virtualized Routing Engine.



Article ID: TSB17978 TECHNICAL_BULLETINS Last Updated: 03 Dec 2021Version: 8.0
Alert Type:
PSN - Product Support Notification
Product Affected:
MX and PTX series products that are running with the following Routing Engine types, also known as virtualized Routing Engine:

Alert Description:
    Juniper has been shipping virtualized Routing Engines (REs) that have Junos OS 17.4 version pre-loaded for MX series products and PTX series products. As documented in TSB17603, an upgrade of i40e NVM to version 6.01 is required for installing a newer version of Junos OS. However, a firmware downgrade in the field is impossible.

    This notice is to remind of Junos OS End of Life milestones and to encourage customers to upgrade Junos OS to the versions that support i40e-2.4.3/NVM-6.01 shown in the table below. Juniper plans to start shipping the REs with Junos OS 19.3R1 or even later (19.4R3, for example) starting July 2021. These later versions are WRL9 based Junos VMHOST images and will include the upgraded i40e-2.4.3/NVM-6.01 firmware pre-loaded at the factory. For the affected REs, its i40e NVM firmware cannot be downgraded.

 Table 1 - Junos software versions that support i40e-2.4.3 NVM-6.01

Platform i40e-2.4.3/
NVM-6.01 Support
PTX5000 15.1F6-S11 16.1R7 17.1R3 / 17.2R3 / 17.3R3 / 17.4R2 18.1R1 / 18.2R3 / 18.3R1 / 18.4R1 19.1R1 or later
PTX3000 N/A 16.1R7 17.3R3-S6 / 17.4R2-S7 18.2R3 / 18.2R3-S8 / 18.3R3 / 18.4R2 19.1R2/ 19.2R1
MX240/480/960 15.1F6-S11 16.1R7 17.1R3 / 17.2R3 / 17.3R3 / 17.4R2 18.1R1 / 18.2R1 / 18.3R1 / 18.4R1 19.1R1 or later
MX2010/2020 15.1F6-S11 16.1R7 17.1R3 / 17.2R3 / 17.3R3 / 17.4R2 18.1R1 / 18.2R1 / 18.3R1 / 18.4R1 19.1R1 or later
MX2008 N/A N/A 17.2R3 / 17.3R3 / 17.4R2 18.1R1 / 18.2R1 / 18.3R1 / 18.4R1 19.1R1 or later
N/A N/A N/A 18.2R1 / 18.3R1 / 18.4R1 19.1R1 or later

Risk Risk Description
Medium - Action required within next six months Needed for Junos upgrade plan
Impact Impact Description
Medium - Risk of service interruption Customer's Junos upgrade plan can be affected. Also at the time of Routing Engine RMA, both Junos and the FW upgrade process are needed, that can take a longer time for recovery.

    Please plan Junos OS upgrade as soon as possible, and complete before the end of June 2021. For any concerns, please contact your account team or JTAC.
Modification History:
Update format for readability 2021-12-03
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