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20.1R2-S4-EVO: Software Release Notification for JUNOS Software Version 20.1R2-S4-EVO

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Article ID: TSB17987 TECHNICAL_BULLETINS Last Updated: 27 Feb 2021Version: 1.0
Alert Type:
PSN - Product Support Notification
Product Affected:
PTX and QFX series running Junos Evolved
Alert Description:
Junos Software Service Release version 20.1R2-S4-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
Solution:

Junos Software service Release version 20.1R2-S4-EVO is now available.

20.1R2-S4-EVO - List of Fixed issues
PR Number Synopsis Category: software upgrade infra issues
1556641 The software rollback might not work correctly on EVO platforms
Product-Group=evo
On all EVO platforms, the software rollback might not work correctly when "request system software sync all" is run.
PR Number Synopsis Category: Lacp related problems and issues.
1553196 [lacp] [lacptag] PTX10004 lacpd core is obserevd after router reboot
Product-Group=evo
The "lacpd" process may generate a core dump file while a router is shutting down in the following scenarios: a. router reboot b. router upgrade Since the router is shutting down, this won't have an impact on forwarding traffic.
 

20.1R2-S4-EVO - List of Known issues

PR Number Synopsis Category: Configd, ffp issues
1534858 The firewall filter for both IPv4 and IPv6 may not work when it is applied through apply-groups
Product-Group=evo
On Junos OS Evolved PTX devices, the firewall filter for both IPv4 and IPv6 does not work when it is applied through apply-groups on the subinterface
PR Number Synopsis Category: Express PFE CoS Features
1478811 [cos] [scheduler] PTX10008:scheduler with all queues oversubscribed, maximum latency is different on different queues - 21ms ~ 29ms.
Product-Group=evo
In PTX10001-36MR when all CoS queues are over-subscribed, then maximum latency may vary from 21ms to 29ms for different queues.
 
Modification History:
First. publication 2021-02-26
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