Alert Type
SRN - Software Release Notification
Risk
Risk Description
Low/Notification
Software Release Notification
Impact
Impact Description
Low/Notification
Software Release Notification
Product Affected
ACX PTX QFX running Junos Evolved software
Alert Description
Junos Software Service Release version 23.4R1-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 23.4R1-S2-EVO is now available.
23.4R1-S2-EVO - List of Fixed issues
PR Number
Synopsis
Category: EVO interface software
1775320
The Control Board and FPC will restart if the optics present in the first three ports of PTX10001-36MR draw 50W or more power
Product-Group=evo
On Junos Evolved PTX10001-36MR with coherent optics QSFP56-DD-400G-ZR-M, QSFP56-DD-400G-ZR or QSFP56-DD-400G-ZR-HP, if the optics present in the first three ports draw combined power of 50w or more the power rail will experience fault, resetting the Control Board (CB) and Flexible PIC Concentrators (FPC). The entire device traffic will be impacted when CB and FPC go for a reset.
PR Number
Synopsis
Category: PFE COS features on BT based platforms
1797592
More than 8 forwarding-classes cannot be configured with CBF
Product-Group=evo
On PTX10001-36MR, error will be displayed when we commit more than 8 forwarding-classes (FCs) which are configured with Class Based Forwarding (CBF) even though the product supports upto 16 forwarding-classes configured with CBF.
PR Number
Synopsis
Category: PFE L2 forwarding features on BT based platforms
1785084
IFBD lookup Failure in DLU, packets needs to be dropped rather than learned through control IFL in packetio.
Product-Group=evo
Related to L2 level security fix.
1801716
Egress filter over IRB will not work
Product-Group=evo
On Junos Evolved PTX10004, PTX10008, PTX10016, PTX10001-36MR platforms, an Integrated Routing and Bridging (IRB) egress filter does not work if the IRB is part of a VXLAN BD (Virtual Extensible Local Area Network based Bridge Domain).
PR Number
Synopsis
Category: Express BT PFE L3 Features
1767747
FPCs experiences crash and restart whenever the network encounters either an MPLS LSP flap or a LAG flap
Product-Group=evo
On all Junos Evolved platforms face potential network instability due to two issues: FPC(Flexible PIC Concentrators) crashes during network flaps and brief disruptions during route updates with unilists
1777759
LAG interfaces will take longer than usual to come up in a scaled scenario with ALB
Product-Group=evo
On PTX10001, PTX10004, PTX10008 and PTX10016 platforms, if Adaptive load balancing (ALB) is configured on LAG interface, the LAG interfaces will take longer than usual to be up if they are all enabled in the same commit. LAG interfaces get stuck in 'attached' state. This issue happens in a scaled Link Aggregation Group (LAG) (~65 ae*) scenario.
1790095
pfestatsd process may fail to restart when running out of file descriptors
Product-Group=evo
pfestatsd process was running out of file descriptors when there are 16 FPCs in the system as the number of concurrent connections exceeded 1024
1792173
Flabel sequencing is not correct leading to traffic loops and congestion in the PFE on PTX platforms
Product-Group=evo
Flabel sequencing is not correct leading to traffic loops and congestion in the PFE on PTX platforms.
PR Number
Synopsis
Category: Firewall support for DNX
1784909
Policy Based Routing will not work as intended when it is configured with 'next-ip/next-ip6' on all ACX Junos OS Evolved platforms except ACX7024
Product-Group=evo
FIB (Forwarding Information Base) compression feature compresses multiple routes with the same unique forwarding behavior (such as forwarding next-hops) into a single route to save forwarding entries in hardware. If compression happens for route involving PBR (Policy Based Routing) configured 'next-ip/next-ip6' action, then PBR handling for forwarding nexthops gets impacted. PBR will not work properly with the traffic.
PR Number
Synopsis
Category: DNX Multicast
1781735
Multicast traffic is not forwarded to the NG-MVPN core
Product-Group=evo
On all Junos OS Evolved platforms, with Next-Generation Multicast Virtual Private Network (NG-MVPN) configured in the core and Ethernet Virtual Private Network (EVPN) in the access, multicast traffic from the EVPN sender is not forwarded to the NG-MVPN core as multicast next hop (NH) in Packet Forwarding Engine (PFE) has some programming issues resulting in traffic loss.
PR Number
Synopsis
Category: EVO ARP related PRs
1776871
Functionality provided by arp/ndp publish argument doesn't work on all Junos OS Evolved platforms
Product-Group=evo
Functionality provided by publish argument for static arp and static ndp configuration is not working on all Junos OS Evolved platforms.
1798446
Traffic drops will be seen on all Junos OS Evolved platforms
Product-Group=evo
On all Junos OS Evolved platforms, while changing the MAC (Media Access Control ) address on the peer side, the traffic drop will be observed if route is in non-default table.
PR Number
Synopsis
Category: Interface PRs defect & enhancement requests
1762065
monitor interface or show interface does not display the interface description
Product-Group=evo
Enhancement in EVO platform for the command "monitor interface" and "show interface" include interface description
PR Number
Synopsis
Category: EVPN control plane issues
1786959
In the EVPN-MPLS scenario traffic between CE devices will drop
Product-Group=evo
On all Junos OS Evolved PTX platforms, in the Ethernet Virtual Private Network- Multiprotocol Label Switching (EVPN-MPLS) scenario, if the MPLS core interface is configured with a Virtual Local Area Network (VLAN) tag, then traffic between customer edge (CE) devices will get dropped.
PR Number
Synopsis
Category: ACX7332 & ACX7348 Platform Software
1802508
Gamora: CB goes into fault state after system RE power off/on using button press
Product-Group=evo
CB power fault is seen when graceful PSU power off/on using button press. After power off when button is pressed to powered on, RE comes up and then when SW try to set the power up bit CPLD will not honor the request since it is already in set state.
PR Number
Synopsis
Category: All Guardian (ACX7509) timing related issues
1803481
Some timing features do not work as intended with PLL input and lock failure alarms on Junos OS Evolved platforms after Routing and Control Board jack in and switchover
Product-Group=evo
Some timing features (SyncE/PTP/TWAMP) do not work as expected and PLL (Phase-locked loop) input and lock failure alarms can occur on Junos OS Evolved platforms after the following sequence: 1. Insert an RCB (Routing and Control Board) in a running system (OR, remove and then insert back RCB in a running system). 2. Do Switchover after the new RCB is ready for switchover. This problem can be avoided using the workaround specified in the PR.
PR Number
Synopsis
Category: Layer2 forwarding on EX/NTF/PTX/QFX
1803898
Traffic flooding occurs when deactivating and activating interfaces in EVPN scenario
Product-Group=evo
On all Junos and Junos OS Evolved platforms, while deactivating/activating the interface, the first control MAC for a BD and IFL combination can get lost when L2alm'd ifbd Mac sequence num is different from what is sent by L2ald. This will lead to traffic flooding for the MAC which will be impacted.
PR Number
Synopsis
Category: Multiprotocol Label Switching
1793982
RPD process crashes due to memory exhaustion
Product-Group=evo
On all Junos, Junos-EVO platforms, When ISIS with IPv6 is enabled with addition there is link flap seen. With each link flap there will be a memory leak of 240 bytes. There is no service impact until all the system memory is exhausted, however when system memory is exhausted RPD restarts.
PR Number
Synopsis
Category: PTX10K Line Card specific interface PRs
1776596
Interface stay in link DOWN state when using third party optics
Product-Group=evo
On Junos OS Evolved platforms and MX ULC based line cards, interfaces will stay DOWN when using third party vendor optics, due to an incorrect programming of EEPROM when plugged into the device.
PR Number
Synopsis
Category: Issues related to control plane security
1744354
Gamora RLI-52717: Observing continuous ssh errors on log messages(error: Could not load host key: /etc/ssh/ssh_host_ec_p521_key).
Product-Group=evo
This is not an issue, the error messages seen are due to minor enhancement that we attempted to do on evo. However that enhancement is not working on all platforms. It also does not break any existing functionality.
PR Number
Synopsis
Category: Authentication, Authorization, Accounting, PAM (RADIUS/tacplus)
1797496
Config login class with allow/deny-configuration-regexps not working as expected with Routing-instances
Product-Group=evo
Config login class with allow/deny-configuration-regexps not working as expected with Routing-instances
PR Number
Synopsis
Category: UI Infrastructure - mgd, DAX API, DDL/ODL
1794536
The device goes into configuration locked state due to stale mgd
Product-Group=evo
The device is went into config locked state due to stale mgd. For netconf sessions with , if ungraceful exit happens, the lock is not released. There is auto cleanup supported for such cases, But it is not triggered under problem conditions as faced in this PR. This leads to device remain in locked state due to stale entry. "request system logout pid " can be used for cleanup and to recover from this state.
PR Number
Synopsis
Category: Issues related to YANG Data Models
1806061
[manageability_mgd_infra] [all] NFX350 :: JUNOS_REG: NFX350: Getting RPC error while executing RPC command on the device.
Product-Group=evo
Since it is a negative test case. There is no-impact and workaround is available
23.4R1-S2-EVO - List of Known issues
PR Number
Synopsis
Category: PFE L2 forwarding features on BT based platforms
1777003
PTX10001-36MR: epp_epc_intr_shmem_err seen in logs
Product-Group=evo
PTX10001-36MR : epp_epc_intr_shmem_err seen in logs
Resolved In:
evo:21.4R3-S6-EVO evo:23.2R2-EVO evo:23.4R1-S1-EVO evo:23.4R2-EVO evo:24.1R1-EVO evo:24.2R1-EVO
PR Number
Synopsis
Category: CoS support on DNX
1793256
Error messages are populating "getQosRewriteHwMapIdFromIflIndex" and interface ifd queue stats traffic is going to the wrong queue
Product-Group=evo
ACX7509 :: Observing Error messages are populating "getQosRewriteHwMapIdFromIflIndex" and verify interface ifd queue stats traffic is going to wrong queue"
Resolved In:
evo:23.4R2-EVO evo:24.2R1-EVO evo:24.3R1-EVO
PR Number
Synopsis
Category: Alias for DHCP issue on DNX based platform.
1771121
JDI_REG:EVO:ultron-xl: jdhcpd.re.re0 cored at trace_file_close_internal (traceptr=0x7efc443b2bb0) at ../../src/junos_trace.c:188
Product-Group=evo
With DHCP trace options enabled in their regression scripts, this core was seen. Issue is random not seen always. This was enabled in script for debugging in production network this will not be enabled by default hence the issue will not be seen. Its recommended to enable DHCP trace options only for debugging not otherwise.
Resolved In:
PR Number
Synopsis
Category: VPWS, L2 CKT, EVPN-VPWS
1797839
Traffic drops observed in the L2Circuit/L2VPN scenario
Product-Group=evo
On Junos Evolved ACX platforms, traffic drops are observed when an update is processed in the L2Circuit (Layer 2 Circuit)/L2VPN (Layer 2 VPN) scenario on executing the CLI command "clear isis database all". The issue happens due to the reuse of the same port resource when PFE (Packet Forwarding Engine) receives the deletion and addition of port resources.
Resolved In:
evo:22.4R3-S2-EVO evo:23.2R2-S1-EVO evo:23.4R1-S1-EVO evo:23.4R2-EVO evo:24.1R2-EVO evo:24.2R1-EVO evo:24.3R1-EVO
PR Number
Synopsis
Category: DNX VPLS
1805586
ACX7K || Post instance renaming, VPLS MACs stopped exchanging over MPLS CORE/LSI interface
Product-Group=evo
During renaming of routing-instance some BD objects are not properly handled and are reaching PFE during delete. Because of which LSI interface is not getting created in the hardware as its waiting for the BD updates which already got deleted.
Resolved In:
evo:22.4R3-S3-EVO evo:23.4R2-EVO evo:24.2R1-EVO evo:24.2R2-EVO evo:24.3R1-EVO evo:24.4R1-EVO
PR Number
Synopsis
Category: Dynamic rendering infrastructure
1745615
Telemetry data is not exported in an IS-IS scaled Segment Routing scenario
Product-Group=evo
On all Junos and Junos OS Evolved platforms configured with SR-ISIS and with gRPC/gNMI telemetry, subscription to the path: "/junos/services/segment-routing/sid/usage/" will not work and the output could not be proper. The issue could happen only in scaled configuration (Approximately, 4000 or more per-sid ingress sensors and 4000 or more IPv4/IPv6 per-sid egress sensors are configured).
Resolved In:
evo:23.4R2-EVO evo:24.2R1-EVO evo:24.2R2-EVO evo:24.3R1-EVO junos:23.4R1-S1 junos:23.4R1-S2 junos:23.4R2 junos:24.2R1 junos:24.2R2 junos:24.3R1
PR Number
Synopsis
Category: EVO linux defects & enhancement requests
1768516
On QFX5130-48C, In rare situation, a vmcore might be seen on the device during bootup
Product-Group=evo
On QFX5130-48C platform, when system is rebooted, on rare situation vmcore can be seen , however there is no service impact.
Resolved In:
evo:23.4R2-EVO evo:24.2R1-EVO evo:24.3R1-EVO
PR Number
Synopsis
Category: Configd, ffp issues
1797425
Commit of "openconfig-interfaces:interfaces interface <> config openconfig-vlan:tpid <>" configuration fails with commit scripts error on glenrothes
Product-Group=evo
Commit of "openconfig-interfaces:interfaces interface <> config openconfig-vlan:tpid <>" configuration fails with commit scripts error on glenrothes
Resolved In:
evo:23.2R2-S1-EVO evo:23.4R2-EVO evo:24.2R1-EVO evo:24.3R1-EVO junos:23.2R2-S1 junos:23.4R1-S2 junos:23.4R2 junos:24.2R1 junos:24.3R1
PR Number
Synopsis
Category: Issues related to Junos licensing infrastructure
1797233
[Junos OS Evolved] syslog - mgd[xxxx]: UI_COMMIT_PROGRESS: Commit operation in progress: cannot signal 'Alarm control process', signal 10, no pid
Product-Group=evo
On Junos OS Evolved platforms, alarmd error is generated upon config commit.
Resolved In:
PR Number
Synopsis
Category: Issues related to NETCONF
1792362
RPC request for file copy with routing instances is failing
Product-Group=evo
On Junos OS and Junos OS Evolved platforms configured with routing instances, RPC (Remote Procedure Call) request for file copy using routing instance fails. There is no service/traffic impact due to this issue.
Resolved In:
evo:22.3X50-EVO evo:22.4R3-S3-EVO evo:23.2R2-S1-EVO evo:23.4R2-EVO evo:24.2R1-EVO evo:24.3R1-EVO junos:22.4R3-S3 junos:23.2R2-S1 junos:24.3R1
PR Number
Synopsis
Category: Express ZX PFE L3 Features
1708454
High Scale for SPMSI NGMVPN on PTX1003 is not supported
Product-Group=evo
In high scaled (beyond 14k s, g routes - 7k ipv4 and 7k ipv6 )NGMVPN SPMSI scenarios, core might be seen on PTX10003 platforms due to memory getting exhausted.
Resolved In:
evo:24.2R1-EVO
Modification History
First publication 2024-06-24
23.4R1-S2-EVO: Software Release Notification for JUNOS Evolved Software