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21.2R1-S2-EVO: Software Release Notification for JUNOS Software Version 21.2R1-S2-EVO

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Article ID: TSB18200 TECHNICAL_BULLETINS Last Updated: 08 Nov 2021Version: 1.0
Alert Type:
SRN - Software Release Notification
Product Affected:
PTX and QFX Series running Junos Evolved Software
Alert Description:
Junos Software Service Release version 21.2R1-S2-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
Risk Risk Description
Low/Notification - No defined time impact to take action Software Release Notification
Impact Impact Description
Low/Notification - Monitor the situation but no action needed Software Release Notification

Solution:

Junos Software service Release version 21.2R1-S2-EVO is now available.

21.2R1-S2-EVO - List of Fixed issues

PR Number Synopsis Category: QFX VC/VCF NSSU
1621611 QFX5200: NSSU (nonstop-upgrade) CLI missed in QFX TVP codes
Product-Group=evo
NSSU option is not available from 21.2R1. This option is missing from the time UI component publish has been separated out.
PR Number Synopsis Category: EVO Netstack FIB Service Daemon
1603783 Malformed packets may be sent out on egress interfaces in Junos-EVO platform
Product-Group=evo
On platform running Junos Evolved, Malformed packets may be sent out on egress interfaces during a period when destination MAC is being resolved.
PR Number Synopsis Category: SNMP, mib2d issues
1621606 incorrect IF-MIB::ifHCInUcastPkts and ifHCInBroadcastPkts statistics
Product-Group=evo
incorrect IF-MIB::ifHCInUcastPkts and ifHCInBroadcastPkts statistics reported
PR Number Synopsis Category: RPD API infrastructure
1607185 TCP traffic might be dropped on source port range 512 to 767 when the FlowSpec IPv6 filter is configured
Product-Group=evo
In the BGP FlowSpec scenario, the IPv6 filter matching icmp-type 2 only drops TCP traffic on source port range 512 to 767.
 

21.2R1-S2-EVO - List of Known issues

PR Number Synopsis Category: "agentd" software daemon
1600412 gNMI Telemetry might stop working after RE switchover
Product-Group=evo
In a dual RE (Routing Engine) system with GRES (Graceful Routing Engine Switchover) NSR (Nonstop Active Routing) enabled telemetry might stop working after RE switchover.
PR Number Synopsis Category: mgd, ddl, odl infra issues
1580631 Few config yang modules are missing during build time YANG generation
Product-Group=evo
Few native config yang modules may be missed during the built time.
PR Number Synopsis Category: PTX10K platform specific fabric PRs
1611753 PTX10016 :: On a fully loaded scapa16, when all the FPCs are in online state, and when SIB offline/online is performed, fabric link training will take close to 10 mins
Product-Group=evo
PTX10016:: With a fully loaded chassis and all the FPCs are online, if you take a SIB offline/online, its fabric link training will take close to 10 mins
1612624 Some of the fabric links might go into faulty state after swapping FPC LC1201 with LC1202
Product-Group=evo
On PTX10016 platform, swapping FPC (Flexible PIC Concentrator) LC1201 with LC1202 causes a few fabric links to go into FAULT state and traffic drop will be seen.
1615297 PTX10016 :: Ungraceful FRU removal not recommended
Product-Group=evo
On Ungraceful FRU removal will result in CRC errors on the peer FRUs, which can potentially wedge the PFEs.
PR Number Synopsis Category: PTX10K specific platform PRs
1598866 SNMP 18.2X75-D66 Feature Parity: Naming convention discrepancy in field entPhysicalDescr on EVO
Product-Group=evo
entPhysicalDescr entries will no longer have the "slot" annotations.
PR Number Synopsis Category: Authentication, Authorization, Accounting, PAM (RADIUS/tacplus)
1600615 The process mgd may crash with authentication setup
Product-Group=evo
If authentication (e.g., tacplus-server, radius-server) is configured on a device, it may fail to open files in a rare case, which may cause the process mgd to crash.
 
Modification History:
First publication 2021-11-08
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