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Resolved Issues: 21.2R3

Class of Service (CoS)

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

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

  • The uplink interface remains down for a longer duration due to VXLAN scaled configuration. PR1631448


  • A few ARP/ND/MAC entries for Vlans are missing with MAC-VRF configuration. PR1609322

  • IRB proxy-arp unrestricted might not work if EVPN/l2alm proxy is enabled. PR1613201

  • Multiple memory leaks might be seen leading to process rpd crash. PR1626416

  • The MAC address might not be visible in the EVPN/VXLAN environment. PR1645591

General Routing

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

High Availability (HA) and Resiliency

  • During unified 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


  • The alarm "Host 0 Active Disk Usage Exceeded" might be generated due to a large number of files under /var/log/journal which were held by the Eventd daemon. PR1601251

Layer 2 Ethernet Services

  • Enabling DHCP on Junos and Junos Evo platforms might cause the router's file system storage to get filled up with log files. PR1617695


  • MPLS VPN packets drop due to missing ARP entry on PE. PR1607169

  • Traffic loss seen on the QFX5000 line of switches after STP topology change. PR1616878

  • Traffic towards MPLS-Core is not rerouted to alternate port on QFX5000 platforms. PR1627002

Platform and Infrastructure

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

  • The packet drop might be seen on FPC on Trio based platforms. PR1631313

  • 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 an EVPN-VXLAN scenario. PR1564403

  • The na-grpcd process might crash during longevity tests. PR1565255

  • MAC addresses might not be relearned successfully after MAC address age timeout. PR1567723

  • QFX10K2-60C: Disk missing alarms are not seen. PR1573139

  • When soft loopback port and analyzer configurations are committed together, Mirror ingress to local port is not working . PR1581542

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

  • The QFX5000/10000 device might get hanged after reboot for sometime. PR1584902

  • High FPC CPU utilization might be seen on PTX10002-60C/QFX10002-60C platform. PR1585728

  • The syslog ERROR message might be seen when deactivating Bridge domains/VLANs. PR1589138

  • QFX5210-64C - PSU jfirmware upgrade through Junos. PR1589572

  • The DCI InterVNI and IntraVNI traffic might be dropped silently in gateway node due to the tagged underlay interfaces. PR1596462

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

  • Error message error: syntax error: request-package-validate will be seen on device CLI output during non stop software upgrade. PR1596955

  • The interface on SFP-T or SFP-SX might stop forwarding traffic on EX4600. PR1598805

  • EVPN-VXLAN:QFX10008: RE1 went to DB prompt when tried loading profile configurations over LRM configurations. PR1598814

  • The SFP-T port might stop forwarding traffic on EX4600 platforms. PR1600291

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

  • QFX5200: Observed dcpfe core files while testing unified ISSU from Junos OS Release 21.1R1.11 to Release 21.2R1.7. PR1600807

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

  • InterDC traffic loss might be seen in MAC-VRF EVI with trap stats "dlu.ucode.discard ." PR1601961

  • EVPN/VXLAN arp-suppression does not respond to ARP request when VLAN ID under interface (IFL) is different with VLAN ID under vlan (BD) in SP style. PR1602318

  • On QFX5120s, even after deactivating analyzer configuration, traffic is getting mirrored. PR1603192

  • Unicast DHCP packets might get flooded when DHCP relay is configured in non-default routing-instance. PR1603444

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

  • On QFX5110 Virtual Chassis (VC) setup, removing and adding of VC ports might cause the VC ports to remain in down state sporadically. PR1606705

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

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

  • Continuous Layer 3 traffic drop might be observed with MC-LAG configuration on QFX10000 platforms. PR1610173

  • MAC move or MAC flap might be triggered in the QFX5000 Virtual Chassis environment. PR1610295

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

  • Continuous FPC crash and dcpfe core files might be seen on QFX10002-60C and PTX10002-60c platforms. PR1612871

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

  • 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

  • The BFD session might flap on the QFX5120-48YM platform. PR1616692

  • The l2cpd core file is seen with FIP snooping configuration on any interface. PR1617632

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

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

  • Core files might be seen on EX and QFX devices after configuration changes. PR1618352

  • Traffic might be dropped when IRB is configured and removed from VLAN. PR1618425

  • Dot1x based firewall policers are not supported. PR1619405

  • The process dcpfe might crash after performing VXLAN VNI configuration change and delete on QFX5000 and EX series 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 via the EVPN Type-5 route are not resolved. PR1620627

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

  • QFX-5120: Observing error "tvp_is_qsfp_has_single_led ioctl call failed ret:-1" while loading the build. PR1621630

  • LED indicator might be showing 'ON' status once QSFP is removed. PR1622580

  • Host generated IPv4 traffic sent over IPv6 next-hop with IRB interface might get dropped. PR1623262

  • Interface on QFX52xx not coming up after swapping from 100G to 40G. PR1623283

  • MACsec session might flap if multiple logical interfaces are created on single physical interface. PR1624524

  • In rare circumstances, PKID might crash and generate a core file when there was limited memory available on the Routing Engine. PR1624613

  • QFX5000 log messages: fpc0 SRIRAM Tx VxLAN Ucast: ifd_out = vtep dst_gport is (c00000X) so do not process pkt further. PR1624925

  • Traffic loss might be observed after configuring VXLAN over IRB interface. PR1625285

  • The statement no-incoming-port is not applied after reboot on QFX10002/QFX10008 platforms. PR1625988

  • The third 802.1Q tag might not be pushed onto the stack in the Q-in-Q tunneling. PR1626011

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

  • Routing Engine generated traffic might not be forwarded when next-hop is indirect unilist of EVPN Type 5 tunnel. PR1627363

  • QFX10002-60C platform might not respond back to ICMP packets received with TTL or hop limit value of 1. PR1627566

  • Layer 3 traffic failure might be observed with scaled MC-LAG configuration on QFX10002/QFX10008/QFX10016 platforms. PR1627846

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

  • DHCP inform ack might be sent with broadcast address when DHCP smart relay is used. PR1628837

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

  • Some ports (port 20 and above) on QFX5110-32Q Virtual Chassis might not come up after a device restart or Packet Forwarding Engine reboot. PR1629231

  • Traffic might get dropped when family ethernet-switching is configured on the interface in Q-in-Q scenario. PR1629680

  • The "show interface extensive" command might not show Local/Remote fault.

  • LACP timeout might be observed during high CPU utilization. PR1630201

  • QFX5000 : Chassis Status LED doesn't work as document described. PR1630380

  • The FBF filtered VLAN traffic will not be passed properly to the forwarding routing instances over AE interfaces on QFX5K/EX4600/EX4650 platforms. PR1633452

  • Traffic loss is observed after MAC ages. PR1633879

  • The VCPs connected with the AOC cable might not come up after upgrading to Junos OS Release 17.3 or later releases. PR1633998

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

  • Silent drop in traffic might be observed when STP is configured in VxLAN environment. PR1636950

  • Configuring L2PT on a transit switch in a Q-in-Q environment breaks L2PT for other S-VLANs. PR1637249

  • Delay might be observed for the interfaces to come up after reboot/transceiver replacement. PR1638045

  • Targeted broadcast or WOL feature may not work on QFX 5000 platforms. PR1638619

  • MAC-move might be observed when dhcp-security is configured. PR1639926

  • The KRT queue might get stuck with the error- 'ENOMEM -- Cannot allocate memory'. PR1642172

  • ICMP TTL exceeded packets are not sent out of the switch. PR1643457

  • Packets are dropped in ingress QFX5000 with EVPN-LAG multihoming due to VP-LAG programming issue. PR1644152

Routing Policy and Firewall Filters

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

Routing Protocols

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

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

  • Traffic drop will be seen when VPN labels are incorrectly allocated due to change in nexthop. PR1617691

  • Verification of BGP peer count fails after deleting BGP neighbors. PR1618103

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

  • The BFD session might be down when multiple addresses of same subnet are configured. PR1635700

User Interface and Configuration

  • The core files may not get deleted using CLI "file delete /var/core/*/vmcore*". PR1624562