Customer is seeing the error with evpn-vxaln config
Mar 6 14:27:44 JTAC-re0 packetio[27109]: [t:29020] [Error] VXLANPKT_HDLR:PKT: VXLAN Pkt processing ratelimited
System error '[Error] VXLANPKT_HDLR:PKT: VXLAN Pkt processing ratelimited' is seen with Higher Multicast traffic rate
When multicast packets are transiting devices via VXLAN VTEP or core interface without multicast configurations, these errors are seen.
This is fixed via PR1796501
https://prsearch.juniper.net/problemreport/PR1796501
As per PR, this is a day-1 issue, where multicast packets recieved over vxlan are sent to resolve request queue, even when snooping/multicast protocols are not enabled.
This is not service impacting & will cause errors.
To prevent these errors, suggested workaround is to have ddos in place for the mcast.
set system ddos-protection protocols ipmcast-miss aggregate bandwidth 100
set system ddos-protection protocols ipmcast-miss aggregate burst 1024