In the EVPN-VxLAN scenario, where AE is configured with native VLAN and has multiple child interfaces during various triggers like child add/delete, reboot, restart PFE, etc., untagged traffic will be dropped on the ingress of the child port due to incorrect settings in the hardware.

On Junos QFX platforms in EVPN-VxLAN (Ethernet VPN-Virtual Extensible LAN) untagged traffic can drop in ingress.
MAC addres is not learned.

The issue was reported on PR1666551 and is resolved on the following versions.

Resolved-In

junos:20.2R3-S5 junos:20.4R3-S4 junos:21.1R3-S3 junos:21.1R3-S4 junos:21.2R3-S2 junos:21.3R3-S1 junos:21.4R3 junos:22.1R2 junos:22.1R3 junos:22.2R1-S1 junos:22.2R2 junos:22.2R3-S2 junos:22.3R1

WORKAROUND
Delete and add native VLAN ID


TRIGGERS
This issue might be seen if the following conditions are met:
* On Junos Platforms (QFX5100, QFX5110, QFX5200, QFX5210, QFX5120, EX4650, EX4600)
* In EVPN-VxLAN scenario
* Native-VLAN is configured
* one of the interfaces in AE (ESI LAG) is add/delete, reboot, restart PFE

2023/08/24 -Creation date