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21.1R1-S1-EVO: Software Release Notification for JUNOS Software Version 21.1R1-S1-EVO



Article ID: TSB18058 TECHNICAL_BULLETINS Last Updated: 28 May 2021Version: 1.0
Alert Type:
SRN - Software Release Notification
Product Affected:
PTX and QFX series running Junos Evolved
Alert Description:
Junos Software Service Release version 21.1R1-S1-EVO is now available for download from the Junos software download site
Download Junos Software Service Release:
  1. Go to Junos Platforms - Download Software page
  2. Input your product in the "Find a Product" search box
  3. From the Type/OS drop-down menu, select Junos SR
  4. From the Version drop-down menu, select your version
  5. Click the Software tab
  6. Select the Install Package as need and follow the prompts

Junos Software service Release version 21.1R1-S1-EVO is now available.

21.1R1-S1-EVO - List of Fixed issues
PR Number Synopsis Category: software upgrade infra issues
1580374 FPC is stuck in an online state and seen continuously rebooting during ISSU
During a restart-based upgrade (request system software add restart), if an FPC is offline at the start of the upgrade, the upgrade flow will transition the FPC to online. With this issue, the routing engine will fail to add this FPC to the allowed upgrade members, and (1) FPC will continuously reboot itself waiting for the upgrade to be done, and (2) Upgrade flow will not converge waiting for all nodes to be ready.

21.1R1-S1-EVO - List of Known issues
PR Number Synopsis Category: software upgrade infra issues
1569294 zeroize doesn't delete snapshot images from the backup HDD
request system zeroize command won't cleanup file-system on the backup disk.
PR Number Synopsis Category: Interface PRs defect & enhancement requests
1492941 "show interfaces descriptions" may not show the configured interface description for all the interfaces.
On all EVO platforms, "show interfaces descriptions" may not show the configured interface description for all the interfaces.
PR Number Synopsis Category: PTX10K Timing/Sync-E issues tracking
1590785 Scapa : Clock status Unknown with failure reason Off-Frequency after loading 21.1R1-S1-EVO image
ZL device init fails in this release. Hence SyncE feature will not work. This issue is fixed in 21.1R2
PR Number Synopsis Category: ACX EVO platform software
1585285 Zeroize on Secondary SSD can wipe the images along with data on Primary SSD
'request system zeroize' removes all images other than the current image on the media on which the system has booted. It will remove all images on the other media (disk2 if system booted from disk1 or disk1 if system booted from disk2). This leaves the media unbootable.
Modification History:
First. publication 2021-05-27
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