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Resolved Issues: 21.1R3

General Routing

  • The Virtual Chassis Port (VCP) might not come up QFX5100 platform PR1555741

  • On the QFX5110 line of switches, the untagged traffic routed over native-vlan might be dropped.PR1560038

  • Multiple entries to vlan-id-list might not work in EVPN-VXLAN scenario. PR1564403

  • The MAC address will point to incorrect interface after traffic is stopped and not aging out. PR1565624

  • BFD sessions over VTEP might fail. PR1571417

  • On the QFX10000 line of switches, the dcpfe or fpc process might crash if the ARP MAC occurs. PR1572876

  • On QFX10K2-60C platforms, disk missing alarms are not seen. PR1573139

  • The OSPF session over IRB might not come up in the EVPN-VXLAN scenario PR1577183

  • On the QFX10000 line of switches, the port might not go in to the Down state immediately during some abnormal type of line card reboots.PR1577315

  • Kernel crash might be observed on the backup Routing Engine after GRES. PR1577799

  • On the QFX5100 line of switches, few 40G ports might not be channelized successfully. PR1582105

  • The pciephy and firmware download is not working after migrating to 6.5.19. PR1582244

  • The srxpfe process might crash. PR1582989

  • Firewall filter is not getting programmed after deleting a large filter and adding a new one in a single commit on QFX5000 platforms.PR1583440

  • On QFX5000 series, the show route detail might not show Next-hop type IPoIP Chained comp nh in the output (Display only - no operation impact). PR1584322

  • The QFX5000 and QFX10000 devices might get hanged for sometime after reboot. PR1584902

  • On QFX10002-60C platform, high FPC CPU utilization might be seen. PR1585728

  • The firewall filter matching condition then dscp is not supported in the VC scenario. PR1586600

  • The na-grpc process crash might be seen and existing telemetry connections will be disconnected.PR1587956

  • The dcpfe might crash when loading EVPN with VXLAN configuration on the setup. PR1588637

  • On the QFX5210-64C line of switches, PSU firmware upgrades through JUNOS. PR1589572

  • On the QFX5120 line of switches, the MPLS traffic might not be forwarded after the aggregate interface flaps.PR1589840

  • VC primaryship changed and connection dropped after renumbering of backup member ID. PR1590358

  • On QFX5120-48T after removing 1g speed on interfaces it won't come back as 10g PR1591038

  • PTP Queue might become stuck under specific traffic pattern and GM switchover. PR1591571

  • The IPv4 fragmented packets might be broken if PTP transparent clock is configured. PR1592463

  • BFD session might flap during Routing Engine switchover. PR1593244

  • The dcpfe process might crash in EVPN-VxLAN scenario. PR1593950

  • Packet drop might occur in ECMP next-hop flap scenario. PR1594030

  • ARP entry might be found missing intermittently post FPC reboot. PR1594255

  • The label field for the EVPN Type 1 route is set to 1. PR1594981

  • The reinstallation of the Type-5 tunnels might fail in the EVPN-VXLAN scenario. PR1595197

  • The DCI InterVNI and IntraVNI traffic might black-holed in gateway node due to the tagged underlay interfaces. PR1596462

  • The mcscnoopd process generates the core files at snp_token_db_gencfg_handler,krt_decode_gencfg,krt_ifstate_resync_read,krt_async_recv_ifstate_resync_phase. PR1596483

  • The l2alm fails to send IPC message to the l2ald which might cause the FPC to crash. PR1596615

  • The fpc0 bcm pkt reinsert failed log written in the log messages in an aggressive way. PR1596643

  • TTraffic might be dropped after backup FPC is rebooted in a Virtual Chassis scenario. PR1596773

  • The interface might not be brought up when Q-in-Q is configured.PR1597261

  • Deletion of MACsec configuration on a logical interface is not taking effect. PR1597848

  • Socket connection drops due to keepalive timer expiration with port 33015.PR1598019

  • s-Flow impacts ICMP traffic on the QFX5120-48Y switches. PR1598239

  • On QFX5100, QFX5110, QFX5120, QFX5200, and QFX5210 platforms, DDoS violations might be reported incorrectly for IP multicast miss traffic (IPMCAST-MISS). PR1598678

  • File permissions are changed for /var/db/scripts files after reboot. PR1599365

  • The Layer 3 traffic gets silently dropped and discarded on the QFX10002-60C devices with IRB interface.PR1599692

  • The VCP might not form adjacency after rebooting the primary FPC in Virtual Chassis scenario. PR1600398

  • Unable to disable the management port em1. PR1600905

  • Removing and adding Virtual Chassis ports might cause the FPC to reboot. PR1601557

  • On QFX5120-48Y switches, dc-pfe core file is generated while issuing the show pfe vxlan nh-usage command in an ERB EMC scenario with ~6000 ARP entries.PR1601949

  • The IPv6 traffic might be impacted on the QFX platforms when an IPv6 route resolves over a dynamic tunnel. PR1602007

  • In rare cases, l2ald might abort when EVPN/VxLAN interface related configuration is deleted. PR1602244

  • The egress interface of the GRE tunnel is not dynamically updated when the destination to tunnel changes. PR1602391

  • In Junos OS, specific packets over VXLAN cause FPC memory leak and ultimately reset (CVE-2022-22170). PR1602407

  • The status of FPC becomes down and the dcpfe process might generate core file dump in some cases. PR1602583

  • In Junos OS, an l2cpd memory leak might occur when specific LLDP packets are received leading to a DoS (CVE-2022-22172). PR1602588

  • Traffic loss might be seen in MC-LAG scenario. PR1602811

  • On the QFX5000 line of switches, traffic drop might occur in the Virtual Chassis scenario when you configure the firewall filter. PR1602914

  • The dot1x authentication may not work on EVPN/xlan enabled endpoints. PR1603015

  • Packet loss might be seen on filter-based GRE deployments. PR1603453

  • In Junos OS, QFX5000 Series devices might run out of memory, causing traffic loss, upon receipt of specific IPv6 packets (CVE-2022-22174). PR1603531

  • The l2ald might crash when ESI with local interface goes down in EVPN-VXLAN scenario. PR1603979

  • Duplicate packets might be seen during bringing up all the interfaces on the spine switch. PR1604393

  • The carrier transition counter might not get incremented upon link flap after the reboot. PR1605037

  • MAC move might be seen between the ICL and the MC-LAG interface if you add or remove VLANs on the ICL interface. PR1605234

  • On QFX5100, generate an optical power after detached and attached QSFP on disabled interface. PR1606003

  • Multicast streams might stop flooding in VXLAN setup. PR1606256

  • The VCP ports goes down after the members split and merge in the Virtual Chassis. PR1606705

  • The LLDP packets received on the VXLAN enabled port might get flooded unexpectedly. PR1607249

  • On QFX Series switches, the fxpc process might crash and generate a core dump. PR1607372

  • FPC might crash post firewall filter configuration changes in QFX platforms. PR1608610

  • An additional VLAN tag might be added for PPPoE (Point-to-Point Protocol over Ethernet) packets on QFX10016. PR1610012

  • Ping to lo0/IRB over Type-5 fails. PR1610093

  • On QFX10002 line of switches, continuous Layer 3 traffic drop occurs with the MC-LAG configuration.PR1610173

  • On QFX5000 Virtual Chassis, MAC move or MAC flap might be triggered. PR1610295

  • Inter-vlan connectivity might be lost in an EVPN-VXLAN with CRB topology. PR1611488

  • Layer 3 interfaces unable to attach DSCP rewrite firewall filter on QFX5100. PR1612587

  • On QFX10002-60C line of switches, continuos FPC might crash and the dcpfe process might generate the core file. PR1612871

  • Arp resolution for data traffic received over Type5 might fail. PR1612905

  • FPC might crash after device restart in EVPN-VXLAN scenario. PR1613702

  • Removing the optical module "JNP-SFPP-10GE-T" from a port might cause certain ports to go down. PR1614139

  • On QFX5000 VLAN firewall filter is not deleted in Packet Forwarding Engine after configuration change. PR1614767

  • The l2ald process might crash in EVPN scenario. PR1615269

  • Slow memory leak (32 bytes each time) of rpd might be seen. PR1616065

  • Packet drop might occur if VxLAN is configured. PR1616683

  • BGP routes learnt through type 5 EVPN routes might not get activated. PR1617878

  • BFD session might get stuck in initial state after l2-learning restart due to incomplete ARP resolutions. PR1618280

  • Core dumps might be seen on QFX devices after configuration changes. PR1618352

  • Dot1x based firewall policers are not supported. PR1619405

  • The process dcpfe might crash after performing VXLAN VNI configuration change and delete on QFX5000 platforms. PR1619445

  • Disabled VCP (Virtual chassis port) will be up after the optic on it is reseated. PR1619997

  • High wired memory utilization might be observed if GRES is enabled. PR1620599

  • Routes learned through the EVPN Type-5 route are not resolved. PR1620627

  • EVPN-VXLAN Type5 traffic might get failed on the Spine device of QFX10000. PR1620924

  • Implement show task scheduler-slip-history to display no of scheduler slips and last 64 slip details. PR1626148

  • JDI-RCT: QFX10002 MCLAG PDT: L3 Traffic failures observed continuously with PDT mclag configuration. PR1627846

  • 802.1p BA classification might not work on mixed Virtual Chassis when interface has a DSCP and 802.1p classifier. PR1628447

  • The vmhost crash might be seen in a rare condition when route addition and change. PR1629200

  • Data might not be exchanged through EVPN-VxLAN domain. PR1635347

  • Memory usage continuously increase is observed on backup chassis if subscriber service is enabled. PR1595238

Class of Service (CoS)

  • Transit packets from local to remote VTEP might get punted to CPU and cause DDoS events. PR1489233

  • The dcpfe crash might be seen on QFX5120. PR1563625

  • The TCP-ECN traffic might not be forwarded with high priority. PR1585854

  • The dcpfe core might be seen in auto-channelization scenario or when SFP is plugged out. PR1616847


  • Traffic loss might be seen under EVPN scenario when MAC-IP moves from one CE interface to another. PR1591264

  • The device announces router-mac, target, and EVPN VXLAN community to BGP IPv4 NLRI. PR1600653

  • Traffic sent by the QFX5000 switch leaf to remote leaf with link down. PR1605375

High Availability (HA) and Resiliency

  • During ISSU package signature validation might fail and the upgrade might not happen. PR1575680

  • Memory leaking might occur on backup Routing Engine when ksyncd is in inconsistent state and had encountered an initialization error. PR1601960

Layer 2 Ethernet Services

  • The DHCP client might be offline for about 120 seconds after sending the DHCPINFORM message. PR1587982


  • Traffic loss seen on QFX5000 after STP topology change. PR1616878

Platform and Infrastructure

  • IPv6 link-local traffic is getting classified to firewall host this might affect communication on IPv6 link-local addresses. PR1600085

Routing Policy and Firewall Filters

  • The interface-routes rib-group policy does not work as expected in the VxLAN scenario. PR1537306

  • The rpd process might get stuck at 100% when EVPN vrf-target is enabled and after any configuration change. PR1616167

Routing Protocols

  • The remaining BFD sessions of the aggregated Ethernet interface flap continuously if one of the BFD sessions is deleted. PR1516556

  • IPv4 static route might still forward traffic unexpectedly even when the static route configuration has already been deleted. PR1599084

  • The interface might receive multicast traffic from a multicast group which it is not interested in. PR1612279

  • The wrong BGP path might get selected even when a better or preferred route is available. PR1616595

  • Time delay to export prefixes to BGP neighbors might occur post applying peer-specific BGP export policies. PR1626367