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20.3R1-S1: Software Release Notification for JUNOS Software Version 20.3R1-S1

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Article ID: TSB17943 TECHNICAL_BULLETINS Last Updated: 24 Dec 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 20.3R1-S1 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 20.3R1-S1 is now available.

20.3R1-S1 - List of Fixed issues
PR Number Synopsis Category: QFX PFE L2
1541316 QFX-5110-EVPN_VXLAN: Check traffic with vxlan encap header fails
Product-Group=junos
In an EVPN-VXLAN scenario when an access side interface is an EP style configured interface on a QFX-5110, if the packet is already VxLAN encapsulated when coming on the access side interface, it will get dropped.
PR Number Synopsis Category: ACX L3 IPv4, IPv6 support
1508534 ACX may stop forwarding transit and control traffic
Product-Group=junos
The ACX500, ACX1000, ACX1100, ACX2100, ACX2200, and ACX4000 platform may stop forwarding transit and control traffic due to DMA stuck issue with SDK.
PR Number Synopsis Category: Issues related to Junos licensing infrastructure
1556816 [licensing] [license] : qfx5120-48ym-8c :: PDT:QFX5120-48YM : Multiple License Warning Messages are coming in CLI in QFX-5120-48YM in 20.4R1 Release
Product-Group=junosvae
When Customer upgrades from older releases to 20.3R1 on below products 1)SYMPHONY/QFX5200-48Y, 2)PYRITE/ QFX5120-48YM-8C, 3)DUCKHORN_R/ QFX5200-32C-R, 4)ABSINTHE/ QFX5120-48T-6C , 5) MOUNTEDEN/ QFX5200-32C-64Q License warning messages are seen upon usage of below licensed features VRRP CFM QINQ VXLAN MCLAG ESI-LAG LFM LDP RSVP L2CIRCUIT L3STATIC EVPN_VXLAN IGMP L3VPN EVPN_MPLS SR PIM STATIC_MPLS RIP OSPF BGP ISIS PCEP GRE_TUNNEL licensing
PR Number Synopsis Category: Used for tracking OVSDB software issues and features
1540208 Traffic loss might be seen in OVSDB VxLAN scenario
Product-Group=junos
Under certain circumstances where OVSDB VxLAN is configured, inactive VTEP timers may not stop which might result in VTEP deletion. This causes complete traffic loss.
PR Number Synopsis Category: vMX Data Plane Issues
1544856 The riot forwarding daemon crash might be observed on vMX based platforms configured with IRB interface
Product-Group=junos
On vMX based platforms enabled with IRB interface, the riot forwarding daemon crash might be observed which could lead to traffic loss.
PR Number Synopsis Category: QFX L3 data-plane/forwarding
1541406 Inter VLAN traffic drop might be observed in EVPN-VXLAN scenario
Product-Group=junos
On certain QFX5k platform, inter VLAN traffic drop might be seen on a leaf node when EVPN-VXLAN is configured along with the LAG.
PR Number Synopsis Category: QFX EVPN / VxLAN
1510794 Multicast traffic loss is observed due to few multicast routes missing in the spine node
Product-Group=junos
In an EVPN-VXLAN scenario with scaled snooping configuration(for example, 100 vlan's with snooping enabled), traffic drops might be observed for multicast groups in few vlan's when "clear bgp sessions" is performed on all Spine devices.
1527939 Traffic loss might be observed when traffic is locally routed between 2 VxLANs on the QFX5120 switch
Product-Group=junos
On the QFX5120 switch with EVPN-VxLAN configured, when there is traffic being routed between 2 VxLANs from an access interface of one VxLAN to an access interface of another VxLAN, traffic may go out untagged. Due to this issue, traffic loss will be seen.
PR Number Synopsis Category: KRT Queue issues within RPD
1511539 PTX10008 EVO packet loss around 1% was seen from Spirent and Regular discard increase (show pfe statistics traffic) after GRES check pass and then GRES
Product-Group=junos
PTX10008 EVO packet loss around 1% was seen from Spirent and Regular discard increase (show pfe statistics traffic) after GRES check pass and then GRES
PR Number Synopsis Category: RPD Next-hop issues including indirect, CNH, and MCNH
1535680 AE interfaces stuck in detached state after config delete/rollback with multicast config
Product-Group=junos
After rollback to baseline config, it will bring down all interfaces including ae-ifls. The ifcomplist associated with this ae is removed too, however RPD is in middle of adding an comp-nh but it will send a wrong ifcomplist which is no more valid. Comp->Uncast->IFL(ae), till unicast is freed IFL will be struct in down state.
PR Number Synopsis Category: SSL Proxy functionality on JUNOS
1542942 NSD core file is generated at function nsd_malloc, file ../../../../../../src/usp/usr.sbin/nsd/common/nsd_common.c, line 482.
Product-Group=junos
On all SRX Series devices, when configuring DNS based whitelisting under SSL-proxy and if the DNS resolution fails for any reason, then the nsd process might crash.
PR Number Synopsis Category: Virtual Router Redundancy Protocol
1548464 The knob 'startup-silent-period' might not work in 20.3R1
Product-Group=junos
On all Junos platforms, with double routing engine (RE) implemented, also, 20.3R1 version is in use, the knob 'startup-silent-period' might not work when performs Graceful Routing Engine switchover (GRES) without Nonstop Active Routing (NSR) enabled on Virtual Router Redundancy protocol (VRRP) router.
 

20.3R1-S1 - List of Known issues
PR Number Synopsis Category: Border Gateway Protocol
1538956 [bgp] [VMX Regressions: After move peer out of protection group, path protection not removed from the PE router -- Multipath route still present]
Product-Group=junos
After move peer out of protection group, path protection not removed from the PE router -- Multipath route still present
PR Number Synopsis Category: Express PFE FW Features
1495712 QFX10000 series: show pfe filter hw filter-name not retrieving PFE programming
Product-Group=junos
When running the command: show pfe filter hw filter-name , the command fails to retrieve the PFE programming details of the filter.
PR Number Synopsis Category: QFX Platform related (SYSLOG/ALARMS/miscellaneous)
1539654 Cannot take RSI properly due to Authentication error
Product-Group=junosvae
On QFX10k and PTX10k series which is running on 20.X release, cannot collect RSI properly due to authentication error.
 
Modification History:
First publication date 2020-12-23
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