Resolved Issues: 21.2R2

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

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

Traffic loss might be seen under an EVPN-VXLAN 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 leaf to remote leaf with link down. PR1605375

In an EVPN-VXLAN scenario, a few ARP ND MAC entries for EP style VLANs are missing with MAC-VRF configuration. PR1609322

Memory usage increases continuously on backup chassis if the subscriber service is enabled. PR1595238

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

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

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

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

On QFX5100 platforms, the Virtual Chassis Port (VCP) might not come up after upgrading. PR1555741

Upon receipt of specific sequences of genuine packets destined to the device, the kernel crashes and restarts. PR1557881

On 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 ARP resolution might fail causing traffic issues. PR1561588

The na-grpcd process might generate core files during longevity tests. PR1565255

On QFX10000 Series platforms, DCPFE/FPC might crash if the ARP MAC move happens. PR1572876

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

On QFX Series switches, 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 port might not bring down immediately during some abnormal type of line card reboot on the QFX10000 platforms. PR1577315

On QFX5100 switches, some 40G ports might not be channelized successfully. PR1582105

On QFX5000 platforms, firewall filter is not getting programmed after deleting a large filter and adding a new one in a single commit. PR1583440

The QFX5000 and QFX10000 line of switches might hang for sometime after rebooting. PR1584902

The zero touch provisioning (ZTP) process might silently drop or discard the traffic. PR1585057

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

In an EVPN-VXLAN scenario, 50 percent traffic loss might be observed. PR1589547

On QFX5210-64C switches, PSU firmware upgrades through Junos OS. PR1589572

The MPLS traffic might not be forwarded after the aggregate interface flap on the QFX5120 switches. PR1589840

VXLAN DDoS violation might occur when disabling the port mirror analyzer output interface. PR1590150

Virtual Chassis mastership is changed and connection is dropped after renumbering the backup member ID. PR1590358

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

The xSTP might not get configured when enabled on an interface with SP style configuration. PR1592264

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

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

On QFX10002, QFX10008, QFX10016 switches, MPLS traffic might get discarded on passive monitoring interface. 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 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 configuring a static ECMP route with the same number of next hops as the existing ECMP route. PR1594573

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

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

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

The mcscnoopd process might crash during deleting or adding Layer 2 forwarding configuration after performing a unified ISSU. PR1596483

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

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 the MACsec configuration on a logical interface does not take effect. PR1597848

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

On QFX5000 line of switches, sFlow sample rate setting causes IRB to not respond to ICMP traffic. 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

On QFX10002-60C switches with IRB interface, the Layer 3 traffic might be dropped or discarded silently. PR1599692

Unable to disable the management port em1. PR1600905

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

The IPv6 traffic might be impacted when an IPv6 route resolves over a dynamic tunnel. PR1602007

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

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

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

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

On an EVPN-VXLAN enabled endpoint, dot1x authentication might not work. PR1603015

On QFX5120S switches, traffic gets mirrored even after deactivating analyzer configuration. PR1603192

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

Duplicate packets might be seen when you bring up all the interfaces on the spine switches. PR1604393

On QFX5210-64C switches, the carrier transition counter does not increment on link flap after rebooting. PR1605037

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

Multicast streams might stop flooding in a VXLAN setup. PR1606256

Virtual Chassis ports might remain in down state after removing and adding. PR1606705

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

On QFX Series switches, the fxpc process might crash and generates a core file. PR1607372

Ping to loopback and IRB interfaces over Type 5 fails. PR1610093

Continuous Layer 3 traffic drop is observed with MC-LAG configuration on QFX Series platforms. PR1610173

Agile licensing might vanish after Virtual Chassis mastership switchover or reboot. PR1610272

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

On QFX10002-60C and PTX10002-60C switches, FPC crashes continuously and generates dcpfe core file. PR1612871

On QFX5000 line of switches, the VLAN firewall filter is not deleted in the Packet Forwarding Engine after configuration change. PR1614767

The l2ald process crashes and generates core files in an EVPN scenario. PR1615269

The BFD session might get stuck in the init state after Layer 2 learning restarts due to incomplete ARP resolutions. PR1618280

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

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

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

IPv4 static route might still forward traffic unexpectedly even when the static route configuration is deleted. PR1599084

The system archival might not work inside a routing instance. PR1572228