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

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Article ID: TSB18190 TECHNICAL_BULLETINS Last Updated: 27 Oct 2021Version: 1.0
Alert Type:
SRN - Software Release Notification
Product Affected:
ACX, EX, MX, PTX, QFX, NFX, SRX, VRR, vMX, vSRX
Alert Description:
Junos Software Service Release version 21.2R1-S2 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 is now available.

21.2R1-S2 - 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=junos
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: "agentd" software daemon
1600412 gNMI Telemetry might stop working after RE switchover
Product-Group=junos
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: CFM
1619231 OAM CFM adjacency is not forming on EX4300.
Product-Group=junos
Due to the HW programming error, CFM sessions gets failed.
PR Number Synopsis Category: EX4400 PFE software
1620808 EVPN type 5 routes might not be installed
Product-Group=junos
On the EX4400 series platform, EVPN type 5 routes may not be installed, when underlay is ECMP.
PR Number Synopsis Category: Express pfe Mclag
1610173 QFX10002 MCLAG PDT: Continuous L3 traffic drop observed with MC-LAG configuration.
Product-Group=junos
QFX10002 MCLAG PDT: Continuous L3 traffic drop observed with MC-LAG configuration.
PR Number Synopsis Category: Multiprotocol Label Switching
1613372 Sometimes RPD might crash if express segments are configured with SRTE underlay protocol
Product-Group=junos
When express segments are configured with SRTE as underlay protocol, sometimes RPD can crash when express segments are getting deleted or re-advertised.
PR Number Synopsis Category: Kernel Tunnel Interface Infrastructure
1621369 VMX :: Commit failure observed with syntax error: "error: load failure on translation changes" while applying tunnel interface configs using openconfig cli
Product-Group=junos
When you configure gr interface using openconfig knobs for ip address commit might fail. Solution: Configure ip and prefix length at subinterface path: set openconfig-interfaces:interfaces interface gr-0/0/0 subinterfaces subinterface 0 openconfig-if-ip:ipv4 addresses address 196.1.1.1 config ip 196.1.1.1 set openconfig-interfaces:interfaces interface gr-0/0/0 subinterfaces subinterface 0 openconfig-if-ip:ipv4 addresses address 196.1.1.1 config prefix-length 24
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=junos
In the BGP FlowSpec scenario, the IPv6 filter matching icmp-type 2 only drops TCP traffic on source port range 512 to 767.
PR Number Synopsis Category: Authentication, Authorization, Accounting, PAM (RADIUS/tacplus)
1600615 The process mgd may crash with authentication setup
Product-Group=junos
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.
PR Number Synopsis Category: Junos Automation, Commit/Op/Event and SLAX
1604622 File download using "request system download" might fail
Product-Group=junos
On a EX4400 device, any files scheduled for download using the cli command "request system download" might fail due to error. The files can be downloaded using normal ftp/scp commands on the device.
PR Number Synopsis Category: Configuration management, ffp, load action
1601159 The commitd core file may be observed after committing some configuration change
Product-Group=junos
On all Junos platforms, if juniper.db size is more than 700 MB and commitd is invoked, it causes the device to generate a core file (or dump file).
 

21.2R1-S2 - List of Known issues

PR Number Synopsis Category: JUNOS kernel/ukernel changes for ACX
1608852 ACX710 with freebsd12 may experience kernel crash with g_vfs_done() logs on console
Product-Group=junos
ACX710 with freebsd12 (JunOS 21.2R1 onwards) could crash. No ssh or console access. Console will display g_vfs_done log. Require power-cycle to recover.
PR Number Synopsis Category: EVPN control plane issues
1600310 [evpn_vxlan] [evpn_instance] : mx960 ::JUNOS:JDI_FT_REGRESSION::VMX:Bridge mac-table learning entries are not as expected for EVPN-VXLAN-1 routing instance
Product-Group=junos
In a scenario with EVPN-VXLAN in the Datacenter and EVPN-MPLS is in the WAN and the stitching is done with an LT interface, then the bridge mac-table learning entries are not as expected for EVPN-VXLAN routing instance. This could occur after 'restart interface-control' is issued on gateways.
 
Modification History:
First publication 2021-10-27
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