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20.1R1-S2: Software Release Notification for JUNOS Software Version 20.1R1-S2

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Article ID: TSB17808 TECHNICAL_BULLETINS Last Updated: 19 Jun 2020Version: 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 20.1R1-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
Solution:

Junos Software service Release version 20.1R1-S2 is now available.

20.1R1-S2 - List of Fixed issues

PR Number Synopsis Category: Border Gateway Protocol
1507195 BGP might not advertise routes to peers after a peer flap
Product-Group=junos
When update-threading is enabled, a peer flap might trigger BGP to stop advertising routes to neighbors within the flapped peer's group.
PR Number Synopsis Category: IPSEC/IKE VPN
1481625 20.1TOT : SRX4200 : SNP [Regressions] : IPSEC_Tunnels per second (TPS) : In srx4200 Observing 35 % drop in all TPS cases (all encrypted algorithm's) in the latest 20.1I-20200103.0.1100 build
Product-Group=junosvae
In SRX4200, the IPSEC Tunnels per second rate drops by 35% in this release as compared to 19.4R1
PR Number Synopsis Category: Layer 2 Control Module
1505710 The l2cpd crash might be seen if adding/deleting ERP config and then restart l2cpd
Product-Group=junos
Core files are generated if you add or delete ERP configuration multiple times and restarted l2cpd or rebooted the box. If this issue is happened, l2cpd does not recover again and generates core file continuously.
PR Number Synopsis Category: usf ams related issues
1500147 After disabling and Enabling ams0 interfaces, the NAT Sessions are not getting Synced back to Current Standby SDG
Product-Group=junos
After disabling and Enabling ams0 interfaces, the NAT Sessions are not getting Synced back to Current Standby SDG
 

20.1R1-S2 - List of Known issues

PR Number Synopsis Category: QFX L2 PFE
1515254 On QFX5000 and EX46xx with VXLAN enabled , ARP request may get dropped if storm control is configured
Product-Group=junos
ARP request get dropped on QFX5000 and EX46xx devices when all of the following condition are met. 1.Storm control is enabled on any of the port. 2.VXLAN is enabled 3.Arp-suppression is enabled.
PR Number Synopsis Category: Trio pfe bridging, learning, stp, oam, irb software
1493650 [evpn_vxlan] [default_switch_instance] After delete / add AE interfaces, noticing BUM loop
Product-Group=junos
If interface is newly added as CE interface, Existing bum traffic can be looped. Loop prevention features is designed to start working whenever new CE interface is added by configuration. But existing bum traffic can be distributed to new CE interface earlier than enabling of loop prevention feature.
PR Number Synopsis Category: ZT pfe firewall software
1493084 MPC10/11 linecard might crash if the interface is configured with firewall filter referencing shared-bandwidth policer
Product-Group=junos
On MX platforms with MPC10/11, if the shared-bandwidth policer is referenced by an interface specific firewall filter, and the filter is bound to the interface of the affected linecard, during the linecard reboot, there is a chance that firewall filter information updates come out of order when being sent from Routing Engine (RE) to Packet Forwarding Engine (PFE). Due to handling the out of order update messages, the linecard might crash and get into continuous reboot state.
PR Number Synopsis Category: ZT pfe bridging, learning, stp, oam, irb software
1486158 JDI-RCT:-MPC10E@Critical syslog error messages@ fpc3 user.crit aftd-trio: [Critical] Em: Possible out of order deletion of AftNode #012#012#012 AftNode details - AftIndirect token:230791 group:0 nodeMask:0xffffffffffffffff indirect:333988 hwInstall:1#012 "during baseline
Product-Group=junos
Possible out of order deletion of AftNode #012#012#012 AftNode details - AftIndirect token:230791 group:0 nodeMask:0xffffffffffffffff indirect:333988 hwInstall:1#012 "during baseline
Modification History:
2020-08-18 First publication
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