PTX and QFX series running Junos Evolved

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

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.

 

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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.

First. publication 2021-02-26