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19.4R2-S1-EVO: Software Release Notification for JUNOS Software Version 19.4R2-S1-EVO

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Article ID: TSB17786 TECHNICAL_BULLETINS Last Updated: 15 May 2020Version: 2.0
Alert Type:
SRN - Software Release Notification
Product Affected:
PTX10003 QFX5220
Alert Description:
Junos Software Service Release version 19.4R2-S1-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
Solution:

Junos Software service Release version 19.4R2-S1-EVO is now available.

19.4R2-S1-EVO - List of Fixed issues

PR Number Synopsis Category: PFE SW evo-pfemand,packet-io on BRCM platforms running EVO
1497909 QFX5220-32 and QFX5220-128C: evo-pfemand core will be seen if loopback filter is applied with input-list and after switch is rebooted
Product-Group=evo
Configuring input-list filters to loopback interface can cause cores and interfaces will not be created. Input-list filters are not supported for loopback interfaces.
PR Number Synopsis Category: Express ZX PFE L3 Features
1488975 Junos Evolved - flapping an AE bundle causes protocol sessions(ospf) on other AE bundles to go down
Product-Group=evo
When an aggregate Ethernet (AE) bundle goes down and up event happens, the event may cause protocols' adjacencies on other AE bundles to go down.
1500711 Packet drops following "rsvp load-balance" configuration on PTX10003
Product-Group=evo
After "rsvp load-balance" is configured or removed on PTX10003, and then the MPLS LSPs get re-signaled (e.g. due to automatic bandwidth allocation adjustment or manually LSPs clearing), some route prefixes might be programmed in PFE with bad state with "Invalid weights" error. This issue could cause the traffic blackhole.
1501284 Packet drops following "rsvp load-balance" configuration on PTX10003
Product-Group=evo
After "rsvp load-balance" is configured or removed on PTX10003, and then the MPLS LSPs get re-signaled (e.g. due to automatic bandwidth allocation adjustment or manually LSPs clearing), some route prefixes may not update the unilist NH in the PFE. This issue could cause the traffic blackhole.
1501321 Routes are being installed in PFE even when the interface is down or disabled.
Product-Group=evo
Routes are being installed in PFE even when the interface is down or disabled. This problem is specific to Junos Evolved.
1504224 The router might reboot on PTX10003 or PTX10008 running affected EVO release
Product-Group=evo
The evo-aftmand crash might result in the reboot of router under rare scenarios during which route churn or LSP flap.
 

19.4R2-S1-EVO - List of Known issues

PR Number Synopsis Category: "agentd" software daemon
1470872 "xmlproxyd" Binding queue complete-deleted anomolies seen for the type "net::juniper::config::services::agent"
Product-Group=evo
This can happen in negative test cases. When customer installs a yang package then configures a sensor and then deletes the yang package before deleting the sensor.
PR Number Synopsis Category: PTX10003 Interface related issues
1488146 PTX10003 Interface link state is down after picd app restart
Product-Group=evo
When Picd App is restarted, sometimes, 10GE Link status remains Down. Link can be recovered by disabling/enabling remote end.
1499291 CRC errors on Interface may result in Cmerror and ASIC errors in logs.
Product-Group=evo
CRC errors on Interface may result in Cmerror and ASIC errors in logs.
PR Number Synopsis Category: Express BT PFE L3 Features
1492317 evo-aftmand core resulting in reboot of router under rare scenarios during route churn or LSP flap
Product-Group=evo
evo-aftmand core resulting in reboot of router under rare scenarios during route churn or LSP flap
PR Number Synopsis Category: EVO Netstack FIB Service Daemon
1487437 Fibd daemon crashes and generates a core file
Product-Group=evo
Under high load, ppmd and fibd may interact in a way that causes fibd to crash and generate a core file. On a dual routing engine system, this crash triggers a fibd failover. All processes requiring network services that were connected to the crashed fibd will reconnect to the backup fibd running on the other routing engine, and should continue to function normally.
PR Number Synopsis Category: Firewall related development
1492061 delete/deactivate apply-path with bgp configuration not working as expected
Product-Group=evo
If a filter term refers to prefix list as match-condition and the prefix list does not have any prefixes (directly configured or inherited through apply-path) in it. Then such match-condition should be treated as "Match none" and none of the packets should hit that term. However it will be treated as "Match any" in the code and the term may get hit if the packet satisfies other match conditions in the term. Use the suggested work-around when such a situation is encountered.
PR Number Synopsis Category: software upgrade infra issues
1495655 Block Software upgrade when image that is not compatible with the platform is used
Product-Group=evo
Junos Evolved software upgrade process does not detect an Image's incompatibility for a platform. For example, we don't report an incompatibility when trying to use an image for PTX10003-EVO on a PTX10008-EVO and vice versa. The system ends up with an incompatible image and needs to boot from snapshot to recover.
PR Number Synopsis Category: Issues related to debug utilties - objmon,objshell/Dashboard
1438094 [JUNOS-EVOLVED CHANGES] Utility: Differences in xml tags for "show system uptime"
Product-Group=evo
There are differences in XML tags for "show system uptime" compared to Junos.
PR Number Synopsis Category: EVO linux defects & enhancement requests
1482363 EVO: Telnet login related issue with Template (TACACS & Radius)
Product-Group=evo
Problem: When tacacs user or radius user logs in through telnet, username displayed in login prompt show cli authorization output, show system users output and accounting logs is template username and not the actual username that is logged in. The issue here is a display issue where the username displayed will be template username instead of the actual logged in username and there is no functional issue. The problem is specific to telnet and when user logs in through ssh, actual logged in username is displayed.
PR Number Synopsis Category: Configd, ffp issues
1492765 Delay in deleting PrefixListConfig objects after switching between base config and scale config multiple times
Product-Group=evo
When changing config between scale config and config containing no filter or apply-path, sometimes there is a delay in deleting the apply-path addresses.
PR Number Synopsis Category: Express PFE FW Features
1492708 [firewall] [filter_installation] EVO: Filter having apply-patha as match condition is not hit correctly after attaching to ae interface
Product-Group=evo
When ipv6 filter is applied to ae interface after an empty config and the filter has prefix-list match-condition having apply-path, transit traffic does not pass through
PR Number Synopsis Category: Express ZX PFE L3 Features
1505150 A packetio core may occur on a rare occasion during the initialization after system reboot and this may result in a second reboot.
Product-Group=evo
Modification History:
First publication 2020-05-15
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