Our customer is facing the error on two ACX710 which came up at the same time.

As of now it looks like the error is not impacting the service. But we would like to know the root cause of the issue and a possible fix.

Nov 27 08:15:06.642 2025 JTAC fpc0 DNX PKT: (is microbfd pkt) payload length(1) is lesser to have a udp header

Nov 27 08:17:07.354 2025 JTAC fpc0 DNX PKT: (is microbfd pkt) payload length(1) is lesser to have a udp header

Nov 27 08:19:08.154 2025 JTAC fpc0 DNX PKT: (is microbfd pkt) payload length(1) is lesser to have a udp header

The packet is processed by several utility functions to identify the type of packet. The microbfd utility function checks if the received packet is a microbfd packet.

When we have received malformed packet which checks packet length which not valid length. it is throwing as error.

This is Day-1 issue without any known workarounds, which is fixed via internal PR 1899540.