Alert Type
PSN - Product Support Notification
Risk
Risk Description
Low/Notification
Software Release Notification
Impact
Impact Description
Low/Notification
Software Release Notification
Product Affected
ACX, PTX, QFX platforms running Junos Evolved Software
Alert Description
Junos Software Service Release version 21.4R2-S2-EVO is now available for download from the Junos software download site
Download Junos Software Service Release:
Go to
Junos Platforms - Download Software page
Input your product in the "Find a Product" search box
From the Type/OS drop-down menu, select
Junos SR
From the Version drop-down menu, select your version
Click the Software tab
Select the Install Package as need and follow the prompts
Solution
Junos Software service Release version 21.4R2-S2-EVO is now available.
21.4R2-S2-EVO - List of Fixed issues
PR Number
Synopsis
Category: Border Gateway Protocol
1635390
BGP routes might be left stale on the router
Product-Group=evo
On all Junos and Junos Evolved platforms, if the BGP peer goes down, and the very last route in the list is marked as a high priority, BGP might assume no more routes to delete, causing routes to be stale.
PR Number
Synopsis
Category: Used to track SFLOW related PRs in EVO for BCM XGS Platforms
1666434
QFX5130 is sending a flow sample with the wrong value of "Flow record" in sflow sampled packet
Product-Group=evo
The sampled packet may not added with Extended Switch Header and FlowRecord field was not populated correctly.
PR Number
Synopsis
Category: bug tracker for evo
1649163
EVO:ACX When fixed classifier is detached all default classifiers should be re-attached
Product-Group=evo
When you configure classifiers on an interface, the default classifiers are removed. This may cause traffic matching default classifier to not being classified
PR Number
Synopsis
Category: EVO Netstack FIB Service Daemon
1671024
On Junos Evolved platforms, no connectivity between the default routing instance and other routing instance might happen
Product-Group=evo
On Junos Evolved platforms, if the "import-rib" configuration is used to import routes into the default routing instance from another routing instance, then connectivity may fail between those routing instances.
PR Number
Synopsis
Category: Configd, ffp issues
1643192
Observing configd object-info anomalies at net::juniper :: config :: interface :: IFDCEtherOptionsCommon
Product-Group=evo
When the configuration related to the "aggregated-ether-options" hierarchies is configured and then deleted, then it leads to these anomalies.
PR Number
Synopsis
Category: Express PFE FW Features
1672512
JDI-RCT:EVO:PTX10004:PTX10008:PTX10016 - evo-aftmand-bt.fpc core seen
Product-Group=evo
Interface-specific Firewall Filter with fast-lookup-filter CLI knob with counters configured in the Firewall config. When this filter is binded to multiple AE interfaces and then deactivated/activated(deact/act interface <> <> filter output) multiple times, evo-aftmand-bt FPC core is seen occasionally.
1675482
PTX10003-fragment-offset-except firewall match condition is not working for offset-1 value
Product-Group=evo
PTX10003-fragment-offset-except firewall match condition is not working for offset-1 value
PR Number
Synopsis
Category: Express PFE L3 Multicast
1669740
Multicast traffic drop might be seen on specific PTX10k platforms
Product-Group=evo
On specific PTX10k products (PTX10008/ PTX10016/ PTX10001-36MR/ PTX10K-LC1202-36MR), multicast packets get dropped when any replication applications (Multicast, P2MP (Point to Multipoint)) are used and it is flooded on interfaces spread across more than 15 PFEs (Packet Forwarding Engines). This issue might impact a forwarding plane.
PR Number
Synopsis
Category: All Guardian (ACX7509) Platform related issues
1622133
FEB mismatch major alarm is reported with 21.4R1 release on dual RE/Dual FEB ACX7509 systems
Product-Group=evo
A major alarm is reported for a fully populated dual RE/dual FEB system in 21.4R1. Fully redundant (dual RE/dual FEB) ACX7509 feature is not available in 21.4 releases. This alarm for the backup RE/FEB can be ignored.
PR Number
Synopsis
Category: Scapa specific platform PRs
1668285
PTX10000s running Junos Evolved software - SNMP GET is not returning the expected value for FPC MIBs
Product-Group=evo
On a platform running Junos Evolved Software, SNMP GET for FPC MIBs may intermittently return "0" instead of the real value.
PR Number
Synopsis
Category: Issues related to DAX APIs
1669637
Periodic rebalancing of subscribers over AE interface might not work
Product-Group=evo
On all Junos and Junos Evolved platforms with scaled PPPoE (Point-to-Point Protocol over Ethernet) subscribers over static vlan-demux-interfaces over AE (Aggregated Ethernet) interface, if the child member links are flapped, periodic rebalancing of subscribers over AE interface might not happen and might lead to congestion on a particular link.
PR Number
Synopsis
Category: Issues related to mgd, DAX API, DDL/ODL infrastructure, Juno
1656565
Commit and commit check fails when the knob "interface-range" is configured
Product-Group=evo
On all Junos and Junos Evolved platforms, when the knob "interface-range" is configured commit and commit check fails.
21.4R2-S2-EVO - List of Known issues
PR Number
Synopsis
Category: Used to track Layer-2 switching related PRs in EVO for BCM X
1661855
QFX EVO : Transit NTP packets will be trapped to CPU.
Product-Group=evo
On QFX EVO, transit NTP packets will be trapped to CPU.
PR Number
Synopsis
Category: Express BT PFE L3 Features
1664600
PDT: Invalid massive count seen on firewall filter counters
Product-Group=evo
On adding filter to loopback interface, at times wrong count seen for firewall policer. workaround is to clear firewall all once.
PR Number
Synopsis
Category: Firewall related development
1676517
v4 unsupported filter match "fragment-flags reserved" should not be used, as it is matching dont fragment traffic pattern as well..
Product-Group=evo
v4 unsupported filter match "fragment-flags reserved" should not be used, as it is matching dont fragment traffic pattern as well..
PR Number
Synopsis
Category: EVO RPD agent PRs
1665362
Sometimes BGP and RSVP sessions remain down after quick arpd process disable and enable.
Product-Group=evo
Sometimes BGP and RSVP sessions remain down after quick arpd process disable and enable. Whenever customer encounter such scenario, system can recovered from erroneous state by executing "restart routing gracefully" in cli.
PR Number
Synopsis
Category: PR related to socket replication in EVO
1660805
The BGP session might be flapping on EVO platforms
Product-Group=evo
On all EVO based platforms, if Nonstop active routing (NSR) is not enabled, the BGP (Border Gateway Protocol) session might not be established or the established sessions might start flapping continuously.
PR Number
Synopsis
Category: Express PFE FW Features
1674004
Unsupported Filter Type for Filter message seen while testing supported matches across different terms
Product-Group=evo
Supported matches (fltTypes) work only for one filter. One may not mix-and-match them across two different filters.
PR Number
Synopsis
Category: Multi Protocol Label Switch Operations, Admin & Maintenance
1618406
PVL: RLI48458: [segment_routing] [SR-ISIS] ptx10004/ptx10008 :: Traceroute failing in ecmp case, when EVO is a transit router.
Product-Group=evo
Traceroute in MPLS OAM on SR over IPv6 may fail in ECMP case if EVO box is in topology. This is because linux kernel in EVO puts an autoflowlabel on every IPv6 packet. This flow label is transparent to daemon process, which uses a null value for it and calculates the NH details. PFE however takes the flow label into account and calculates the NH details. This difference in calculation of NH details leads to a mismatch in the path the packet takes to the destination and can cause traceroute to fail.
PR Number
Synopsis
Category: KRT Queue issues within RPD stuck queue, retries due to erro
1674310
The rpd crash may be encountered on Junos Evolved platforms
Product-Group=evo
On Junos Evolved dual RE (Routing Engine) platforms, the rpd (routing protocol daemon) may crash if the NSR (Non-Stop Routing) switchover is performed before even the backup rpd is NSR ready. If the issue is encountered, the rpd may get stuck and not install routes. The workaround to avoid this is to perform the switchover when backup RE is fully synced.
PR Number
Synopsis
Category: Issues related to control plane security
1655537
UEFI BIOS Key synchronization tool - efitools.service failed after optics diagnostics test
Product-Group=evo
The efitools.service failed since the EFI data structure is set to be immutable in the JUNOS WRL version 9.x
Modification History
First publication date 2022-09-02
21.4R2-S2-EVO: Software Release Notification