Resolved Issues
Learn about the issues fixed in this release for EX Series switches.
For the most complete and latest information about known Junos OS defects, use the Juniper Networks online Junos Problem Report Search application.
EVPN
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Error messages are observed after performing a VLAN name change with EVPN configuration PR1806660
Forwarding and Sampling
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The fxpc process crashes on Junos platforms when VLANs are deleted and configured PR1831770
General Routing
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The TSC_DEADLINE disabled error logs are observed on Junos vmhost platforms after upgrade PR1608045
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JDI_REG::QFX5200:: After ISSU upgrade, device is hanged and not able to perform any operations until USB recovery done on device PR1703229
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Temporary traffic flooding when root port flaps in all flavours of STP PR1775171
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EX4100 - JUNOS High CPU due to L2ALD PR1780149
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The port class is not captured in cint trace output for individual ports PR1786399
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Master FPC taking 20 sec time to shut backup FPC's network port after backup FPC reboot in a VC set-up PR1788328
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On EX2300/EX3400 series SFP-SX/LX interface is not come up due to auto-negotiation failure PR1789617
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Interfaces down with LOCAL-FAULT alarm after power cycle PR1793137
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[Ex3400] LX/FX SFP Swap leads to traffic drop PR1794986
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ARP won't be forwarded in VLAN associated VNI in VxLAN Fabric PR1801237
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The default port behaviour is not working as expected after deleting VOIP (Voice over IP) configuration on an access interface. PR1802455
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The
set chassis config-button no-clear support
not added on EX4100. PR1802614 -
Log messages with LCMD_TMP_SNS_VAL | LCMD_FAN_SET_SPD | LCMD_PEM_FAN_INFO will be observed when syslog is set to "any info" PR1803115
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The dcpfe process will crash in an EVPN-VxLAN scenario due to stale entries in PFE PR1804628
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Establishing virtual-chassis connection between EX4300-MP platforms, the traffic sent via the VCP port is lost minimally PR1805100
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Interfaces remain down on EX4400-48F platform after replacing a 100MB SFP with 1GB SFP PR1805370
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When VC-mode is set to HGOE and converting port type from vc-port to network port, traffic loss is observed PR1806262
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[Optics] EX4100-48MP : Hot swapping 1G SFPT optics ports are not coming up . PR1810482
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Multiple services and protocols does not work on the backup member with 100G port used as VC interconnect port on QFX5110-48S PR1811701
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Persistent MAC getting stuck in the SRP state results in traffic loss in the EVPN-VxLAN scenario PR1812482
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The output of "show chassis routing-engine" does not show the standard documented outputs after a reboot event or a GRES event PR1812514
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EX4400: MIST: Wrong PSU state is updating in the mist PR1814463
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When PDs(power devices) are connected to all the PoE (power over ethernet) ports with LLDP enabled, the last port is not powered up PR1814715
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DHCP snooping issue Observed on Access Ports with IRB and VXLAN Configuration PR1816445
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Switch port status is changed to unauthorized, when a supplicant client attempts to authenticate using 802.1X standard with EAP-TLS certificate PR1819462
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L2TP Processing Issue on EX and QFX Platforms with Tagged CDP VTP and UDLD Frames PR1821012
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The RADIUS attribute NAS-Port-Type is missing from Access-Request packets PR1822101
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Intermittent alarms related to fan overspeed value can be observed on EX4100 platform PR1822363
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MAC address learning fails when Flexible Ethernet Services Encapsulation is enabled on Junos QFX5K and EX4K platforms after a reboot PR1822608
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EX / QFX : dfw ERROR is seen whenever collecting RSI PR1823280
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EX4400-48MXP/48XP CPU hog by Thread CMQFX and Task ACQUIRE_FP_LOCK during PIC offline and online PR1823394
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EX440 series: While performing a 4x25g channelization configuration on the 1x100GE PIC, certain error logs are printed multiple times PR1823743
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In virtual-chassis after routing-engine switchover traffic of type 5 routes of EVPN-VXLAN are not getting forwarded PR1823764
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Restricted Proxy ARP feature does not work as expected PR1824023
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Rebooting one linecard or FPC will cause the virtual-chassis on the EX4K and QFX5K devices to forward traffic in backup RTG interface PR1824750
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EX4400 series: Offline and then an online of PIC 2 installed with a 1x100GE Uplink module configured for Virtual-chassis link causes the link to remain down PR1826147
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System call process stuck in SMbus causing LACP timeouts and affecting all control traffic PR1826615
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After "deactivating protocol dot1x" and activating it again, the dot1x authentication will not work for ports in single/single-secure supplicant mode PR1826621
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Even though installed the license to both Master and Backup, Alarm LED might be lit with yellow on Backup. PR1827641
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EX4400-48MP ping rapid count with high values stops when phone-home is configured PR1828735
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The dot1x client does not get authenticated and gets stuck in the connecting state when a new dot1x profile is assigned along with a newly created VLAN PR1830067
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Commit error on using more than 31 characters authentication-key-chain-name PR1830395
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On an EX4400 device with 4x25G Uplink module configured in 1GE or 25G speed, peer side of an interface with 10GBASE-T transceiver may remain up even when the IFD(xe-x/2/y) is not created PR1831409
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Traffic is impacted due to PFE crash from ukern file logging PR1831813
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On Junos EX4100 and EX4400 platforms, switch core dump when user commits a command to ignore a "power entry module" alarm PR1833698
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MGE interfaces with auto-negotiation enabled and speed negotiated to 5G does not work PR1836616
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Delay in GBP installation in an EVPN-VXLAN scenario PR1839916
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PFE process crash is observed when web-management is not configured in a CWA setup PR1840988
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Traffic blockage observed with SFP-100BASE-BX10 optics in EX4400-48F PR1843585
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Media Access Control Security (MACsec) does not work properly after a transceiver is removed and re-inserted PR1844354
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Interface not added back to AE bundle with multiple changes in single commit PR1845370
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The error message will be seen on EX4100 platforms when deactivating/activating IRB interfaces PR1846286
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Reachability issues are seen on interfaces that are aggregated without address-family PR1847159
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EX4400: Storm-control is created for the GE interfaces for 4x10G uplink modules. PR1848338
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VoIP Phones are unable to receive an IP address with or without dot1x configuration PR1852215
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Devices fail to obtain an IP address when DHCP Security Option 82 is enabled PR1854253
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In Junos EX and QFX platforms, when ERPS protocol is enabled on a ISL trunk, the commit command fails PR1855088
J-Web
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Reload or refresh the Jweb page showing the "Empty reply from server" error PR1832731
Layer 2 Ethernet Services
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Switch provisioned via ZTP going unreachable due to DHCP misbehaviour on upgrading to 21.4R3-S6 PR1808289
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JUNOS_REG:EX4650-48Y:ZTPv6:Failed to reconnect to device as unable to load configuration to device via shelscript from ztp server PR1822178
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DHCP relay option "allow-server-change" does not work as expected in trusted server group when roaming between access points PR1833148
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Unable to assign an IP address on management interface with DHCP configuration even if DHCP is bound after a power cycle PR1854827
Platform and Infrastructure
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Multiple Products: RADIUS protocol susceptible to forgery attacks (Blast-RADIUS) (CVE-2024-3596) PR1802329
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Console login fails when authentication-order is configured under 'system services' hierarchy on all Junos platforms PR1826666
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Multiple Products: RADIUS protocol susceptible to forgery attacks (Blast-RADIUS) (CVE-2024-3596) PR1826678
Routing Protocols
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Junos OS: Multiple vulnerabilities resolved in OpenSSL (CVE-2024-4741, CVE-2024-2511) PR1815253
Subscriber Access Management
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authd process crashes when radius-server-name is configured PR1818321