ACX, EX, MX, PTX, QFX, NFX, SRX, VRR, vMX, vSRX

Junos Software Service Release version 20.1R2-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

Junos Software service Release version 20.1R2-S1 is now available.

20.1R2-S1 - List of Fixed issues

PR Number	Synopsis	Category: MPC11 ULC fabric software related issues.
1546449	Plane offline IPC of chassisd may time out on MX devices with MPC11E linecards Product-Group=junos	On MX2010/MX2020 with MPC11E linecards, plane offline IPC event might be stuck and the line cards may restart. This issue may happen if there is a run time CRC error on Cascaded PFE and when both the planes associated with the link fault are made offline.
PR Number	Synopsis	Category: Multiprotocol Label Switching
1502993	CSPF job might get stalled for new/existing LSP in high scale LSP setup Product-Group=junos	In an MPLS-TE scenario with high scale LSPs (for example, 20,000), CSPF job might get stalled for new/existing LSP if some configuration changes (which impacts the rpd process) are done when constrained shortest path first (CSPF) job is suspended and pending. Traffic Engineering Database CSPF job goes in a state where it is not able to recover till the time rpd process is restarted. This defect could only be observed in 20.2R1 or 20.2R1-EVO release.
PR Number	Synopsis	Category: vMX Platform Infrastructure related issue tracking
1548422	Traffic with jumbo frame may be discarded on the vMX platforms Product-Group=junos	On the VMX platforms which are installed on ESXI 6.7 with vmxnet3 driver, traffic with jumbo frame (Packets with MTU more than 1500) may be discarded upon receiving.
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.
PR Number	Synopsis	Category: KRT Queue issues within RPD
1539601	The rpd memory leak might be observed on the backup Routing Engine due to link flaps Product-Group=junos	On all junos platforms with dual REs, rpd memory leak may be seen when an AE member interface flaps or immediate restart of master RE. The memory leak was observed be around 32 bytes per session.
PR Number	Synopsis	Category: RPD policy options
1517128	JSA11099 Junos OS Evolved: Receipt of certain valid BGP update packets from BGP peers may cause RPD to core when using REGEX. (CVE-2021-0209) Product-Group=junos	In Juniper Networks Junos OS Evolved an attacker sending certain valid BGP update packets may cause Junos OS Evolved to access an uninitialized pointer causing RPD to core leading to a Denial of Service (DoS). Please refer to https://kb.juniper.net/JSA11099 for more information.
PR Number	Synopsis	Category: SW PRs for SCBE3 fabric
1553641	The fabric errors are observed and the FPC processes might get offlined with SCBE3, MPC3E-NG, or MPC3E and MPC7 or MPC10 in the increased-bandwidth fabric mode. Product-Group=junos	On MX240/MX480/MX960 platforms, with default "increased-bandwidth" fabric mode and SCBE3, if we have MPC3 or MPC3-NG exist on the system along with high bandwidth MPC, during high traffic situation or bursty traffic through the fabric towards MPC3/MPC3-NG. MX fabric might report unreachable destination condition and causes fabric healing to trigger in. This issue is exacerbated when having MPC7 or MPC10 line cards installed due to high fabric bandwidth that can be generated.
PR Number	Synopsis	Category: Antivirus UTM issue
1557278	Stream buffer memory leak might happen when UTM is configured under unified policies. Product-Group=junos	On all Junos platforms that support unified policies (layer 7 application), stream buffer memory leak might happen when Unified Threat Management (UTM) Antivirus Protection (AV)/ Antispam Filtering (AS)/Content Filtering (CF) is configured under unified policies. If the stream buffer memory is exhausted, traffic related to UTM will be affected.

 

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20.1R2-S1 - List of Known issues

PR Number	Synopsis	Category: Chassis mgmt for all QFX systems - chassis MIB, alarms, CLI
1481143	Chassisd cores might happen on backup RE after commit on QFX10Ks due to CHASSISD_MAIN_THREAD_STALLED for 200 seconds Product-Group=junos	Chassisd cores might happen on the backup RE after commit on QFX10K8/16s due to CHASSISD_MAIN_THREAD_STALLED for 200 seconds.
PR Number	Synopsis	Category: Virtual Router Redundancy Protocol
1558560	Junos device might send VRRP advertisement packets in VRRP init or idle state before startup-silent-period timer expiry after performing GRES on VRRP master device with NSR disabled Product-Group=junos	If VRRP master device has dual Routing Engines (REs) and GRES enabled but nonstop-routing (NSR) disabled, after performing GRES, both REs will move to VRRP init then idle state and the new master RE will send VRRP advertisement packets in this stage before startup-silent-period timer expiry. Since the VRRP backup device can still receive the VRRP advertisement packets with higher priority, it will not transition to VRRP master state and hence cause the longer traffic downtime until the VRRP master device re-take the VRRP mastership after startup-silent-period timer expiry.

First publication 2021-02-05