Support Support Downloads Knowledge Base Juniper Support Portal Community

Knowledge Base

Search our Knowledge Base sites to find answers to your questions.

Ask All Knowledge Base Sites All Knowledge Base Sites JunosE Defect (KA)Knowledge BaseSecurity AdvisoriesTechnical BulletinsTechnotes Sign in to display secure content and recently viewed articles

20.1R1-S1-EVO: Software Release Notification for JUNOS Evolved Software Version 20.1R1-S1-EVO



Article ID: TSB17784 TECHNICAL_BULLETINS Last Updated: 12 May 2020Version: 1.0
Alert Type:
SRN - Software Release Notification
Product Affected:
Alert Description:
Junos Evolved Software Service Release version 20.1R1-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 20.1R1-S1-EVO is now available.

20.1R1-S1-EVO - List of Fixed issues
PR Number Synopsis Category: EVO RCB software
1492955 cmdd is crashing when invoked "request system shutdown reboot disk1"
When a user issue "request system shutdown reboot disk1", the cmdd process protests the request by dumping core and ignoring the reboot.
PR Number Synopsis Category: Express BT PFE L3 Features
1492707 [cos] [cbf] EVO PTX10004/8/16: After egress PIC offline/online or deactivate/activate triggers, the ipv4 and ipv6 CBF forwarding-table functionality is not working as expected; The AF and NC queues are not transmitting packets from the second egress interface
For EVO PTX10004/8/16 in 20.1R1, Ipv4 and Ipv6 CBF will not work as expected in negative triggers such as PIC offline/online or deactivate/activate or DUT interfaces flapping. Traffic is getting dropped which were supposed to take AF and NC queue to egress out. Whenever CBF enabled, in forwarding block of chip cos bits of incoming packet will be used the choose the egress path, and this broken in this release whenever mentioned triggered carried out.
PR Number Synopsis Category: Application controller related issues
1491548 Junos Evolved "aftmand" process may restarts when a user reconfigures OSPF interfaces
We may see a FPC evo-aftmand-zx process core when OSPF is configured and one of the interface in the config undergoes a major change. A major interface config change would involve deletion and re-installation of the interface and its subcomponents in the forwarding path. To recover from this crash, the FPC needs to be rebooted.
PR Number Synopsis Category: Interface PRs defect & enhancement requests
1496361 PTX10008 w LC1201 - the ifmand process restarts at IFAManager::findIfaoInSameSubnet
When a user changes an IPv6 address, the ifmand process restarts. No impact to the system.
PR Number Synopsis Category: Express PFE CoS Features
1492985 In StrictPriority mode scheduler, low priority traffic may get lesser than the expected share of the port bandwidth.
In StrictPriority mode scheduler, low priority traffic may get lesser than the expected share of the port bandwidth. For a good workaround Just run strict-priority-scheduler with Strict-High/High/Medium-High/Medium-Low and avoid using priority Low.
PR Number Synopsis Category: Express ZX PFE L3 Features
1488975 Junos Evolved - flapping an AE bundle causes protocol sessions(ospf) on other AE bundles to go down
When an aggregate Ethernet (AE) bundle goes down and up event happens, the event may cause protocols' adjacencies on other AE bundles to go down.
Modification History:
First publication 2020-05-11
Comment on this article > Affected Products Browse the Knowledge Base for more articles related to these product categories. Select a category to begin.

Getting Up and Running with Junos

Getting Up and Running with Junos Security Alerts and Vulnerabilities Product Alerts and Software Release Notices Problem Report (PR) Search Tool EOL Notices and Bulletins JTAC User Guide Customer Care User Guide Pathfinder SRX High Availability Configurator SRX VPN Configurator Training Courses and Videos End User Licence Agreement Global Search