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Resolved Issues: 21.3R1

Class of Service (CoS)

  • The buffer allocation for VCP ports might not get released in Packet Forwarding Engine after physically moving the port location. PR1581187

  • DSCP classifier might not work properly on QFX5000 line of platforms. PR1585361

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

EVPN

  • The l2ald process might crash and restart with an l2ald core file generated when the global level telemetry sensor is enabled. PR1570757

  • Configuring the static-mac and no-mac-learning simultaneously on the VXLAN interface causes stale MAC/IP entry in the EVPN database. PR1576147

  • After device reboot in an EVPN-VXLAN setup with graceful restart, EVPN routes are not advertised to EVPN peers until rpd is up for 180 seconds. PR1586246

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

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

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

  • There is a steady increase in storage usage in the backup chassis when the subscriber service is enabled. PR1605375

Interfaces and Chassis

  • Newly added MC-LAGs do not come up after Routing Engine switchover. PR1583547

  • Removing the configuration from the interface stanza might cause the dcpfe process to crash. PR1594356

Layer 2 Features

  • The DF might not forward BUM traffic on QFX5000 series switches. PR1575976

  • MAC addresses learned from the MC-LAG client device might keep flapping between the ICL interface and MC-AE interface after one child link in the MC-AE interface is disabled. PR1582473

  • Traffic drop might be seen on the aggregate Ethernet interface. PR1585320

Layer 2 Ethernet Services

  • The DHCP client will be offline for 120 seconds after sending the DHCPINFORM message in the DHCP relay scenario. PR1575740

  • DHCP relay drops packets during the DHCP renewal process. PR1576417

  • The traffic received on a port in LACP detached state might be incorrectly forwarded. PR1582459

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

Platform and Infrastructure

  • Routing Engine switchover does not work as expected while solid-state drive (SSD) failure occurs. PR1437745

  • On QFX5220-128C platforms, an interface might stay down for around 3 seconds after the interface is enabled or fiber is inserted. PR1480112

  • Console access on backup Virtual Chassis member is not allowed. PR1530106

  • Kernel crash might occur after NSSU while performing GRES. PR1533874

  • The interface might not come up with 1 Gigabit optics. PR1554098

  • The interface might go into blocking state impacting the traffic when link-protection switches from primary to backup. PR1555294

  • The Virtual Chassis port might not come up after upgrading to 18.4R2-S4 or later releases on the QFX5100 platform. PR1555741

  • On QFX Series platforms, l3static license is required though it is included in base license PR1557631

  • Upon receipt of the specific sequences of genuine packets destined to the device, the kernel will crash and restart (vmcore). PR1557881

  • The MAC addresses learned in a Virtual Chassis might fail due to aging out in a MAC scaling environment. PR1558128

  • The Virtual Chassis fabric might not become stable. PR1559172

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

  • The dcpfe process might crash after committing EVPN-VXLAN profile configuration and the ARP resolution might fail, causing traffic issues. PR1561588

  • On QFX5110-32Q switches, LACP does not come up in the non-oversubscribed mode for a set of ports. PR1563171

  • The rpd process might crash during boot. PR1567043

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

  • DCI traffic loss of 100 percent is observed in transit spine devices. PR1572238

  • In an EVPN-VXLAN CE interface with RSTP configuration might cause LACP or BFD issues. PR1572504

  • DCPFE or FPC might crash on the QFX10000 Series platforms if the ARP MAC move happens. PR1572876

  • On the QFX10008 chassis, the dcpfe process generates a core file. PR1572889

  • Upgrading to Junos OS Release 20.3 or later might report a warning: requires 'l3vpn' license message on commit when a VRF instance configuration exists .PR1575608

  • The dual speed supported DAC cable (100G to 4x25G splitter) might not come up on QFX5120-48Y platform. PR1576180

  • On QFX5000 line of switches, control traffic might be dropped if a high rate of specific multicast traffic is received. PR1576488

  • Multicast packets with TTL=1 are dropped on a VXLAN enabled interface when igmp-snooping or MLD-snooping is enabled. PR1576775

  • The port might not get brought down immediately during some abnormal type of line card reboot on QFX10000 platforms. PR1577315

  • TACACS traffic might be dropped. PR1578579

  • The dcpfe process might crash when any interface flaps. PR1579736

  • The IS-IS packet might be corrupted on the provider edge device over the l2circuit tunnel. PR1580047

  • The dcpfe process crashes while checking the virtual tunnel next hop packet status. PR1580114

  • DHCP packets might be dropped if the dynamic filter dyn-dhcpv4_v6_trap is applied on the interface. PR1580352

  • While mapping analyzers to the channelized port, mirror might not work properly. PR1580473

  • On QFX5120-32C line of switches, the following error is observed: kern.ipc.maxpipekva exceeded; see tuning error. PR1581192

  • The switchover might be affected with the shared VXLAN tunnel. PR1581524

  • The traffic might not be load balanced properly in an EVPN overlay-ecmp setup. PR1582017

  • Some 40 Gbps ports might not be channelized successfully on the QFX5100 platforms. PR1582105

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

  • On QFX10000 line of switches, the firewall filter logs are incorrectly populate the protocol 8847 entries. PR1582780

  • 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

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

  • The ZTP process might cause the traffic to be dropped and discarded silently. PR1585057

  • The DHCP offer packets might be dropped on spine device in a VXLAN multihoming setup. PR1585715

  • Inter and intra VNI traffic might drop in spine with EVPN-VXLAN CRB configuration. PR1586537

  • An FPC heap memory leak might be triggered by certain flowspec route operations which can lead to an FPC crash. PR1589133

  • In an EVPN-VXLAN scenario, 50 percent traffic loss might happen. PR1589547

  • FPC might crash in a scaled firewall configuration. PR1586817

  • On QFX5210-64C switches, add a command line to upgrade PSU jfirmware through Junos OS. PR1589572

  • When the member interface is removed from the aggregated Ethernet interface, it is not removed from mirroring in the analyzer. PR1589579

  • LLDP packets drop on SP style interface for QFX devices. PR1589702

  • The MPLS traffic might not be forwarded after the aggregate interface flaps on QFX5120 devices. PR1589840

  • VXLAN DDoS violation might occur when you disable the port mirror analyzer output interface. PR1590150

  • Virtual Chassis mastership change and connection drop might be seen after renumbering of backup member ID. PR1590358

  • On QFX5120-48T platforms, after removing 1G speed on interfaces it does not come back as 10G. PR1591038

  • The xSTP might not get configured when it is enabled on a interface with SP style configuration. PR1592264

  • Routing Engine kernel might crash due to logical interface of the aggregated interface adding failure in Junos OS kernel. PR1592456

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

  • MPLS traffic might get discarded on passive monitoring interface on QFX10002, QFX10008, QFX10016 switches. PR1592693

  • Multiple crashes with toe_interrupt_errors might be observed. PR1593025

  • BFD session might flap during Routing Engine switchover. PR1593244

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

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

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

  • The existing ECMP route traffic might be dropped if you configure a static ECMP route with the same number of next hops as the existing ECMP route. PR1594573

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

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

  • The IS-IS adjacency might fail to be formed if the MTU size of an IRB interface is configured with a value great than 1496 bytes. PR1595823

  • Traffic 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

  • Unable to disable the management port em1. PR1600905

  • 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

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

  • FPC goes down and dcpfe core files are generated in some cases. PR1602583

  • Traffic loss might be seen in an MC-LAG scenario on QFX platforms. PR1602811

  • Traffic drop might be observed on QFX5000 line of platforms in a Virtual Chassis scenario when the firewall filter is configured. PR1602914

  • The dot1x authentication might not work on EVPN-VXLAN enabled endpoints. PR1603015

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

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

  • On QFX5210-64C platforms, the carrier transition counter does not increment on link flap after 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

  • Multicast streams might stop flooding in a VXLAN setup. PR1606256

  • LLDP packets received on a VXLAN enabled port might be flooded unexpectedly. PR1607249

  • The fxpc process might crash and generate a core dump file. PR1607372

  • Ping to lo0 and IRB over type 5 fails. PR1610093

  • On QFX Series Virtual Chassis might lose license. PR1610272

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

Routing Protocols

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

  • On QFX5000 line of switches, the DHCP packets in a static VXLAN scenario might be dropped. PR1576168

  • Traffic loss might be observed in an EVPN-VXLAN scenario on QFX5000 line of platforms. PR1580005

  • BGP sessions carrying VPNv4 prefix with IPv6 next hop might be dropped. PR1580578

  • Traffic loss might be seen when IPv6 traffic forwarded by IPv4 GRE tunnel. PR1582408

  • With the IGMP snooping implemented, unexpected jitter issue is seen and that might cause traffic loss. PR1583207

  • The rpd process might crash after committing with the static group configured. PR1586631

  • The multi hop BFD session might flap if the Request Support Information (RSI) collection command is executed. PR1589765

  • BGP egress-TE routes lose to BGP routes using the same protocol preference. PR1593332

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

User Interface and Configuration

  • During rare circumstances, the mgd process might crash and generates a core file on Junos OS devices connected with Contrail Service Orchestration (CSO). PR1569903

  • The system archival might not work inside routing-instance. PR1572228