Inside of /var/run/log/lacp.log it is observed that logging messaged are prepended with '[DEBUG]' such as the examples below:
2025-09-05T12:37:48Z [DEBUG]:155, Succeed to UP uplink vmnic0
2025-09-05T12:37:49Z [DEBUG]:155, Succeed to UP uplink vmnic2
2025-09-05T13:05:45Z [DEBUG]:155, Succeed to DOWN uplink vmnic1
2025-09-05T13:05:46Z [DEBUG]:155, Succeed to DOWN uplink vmnic3
ESXi 7.x
ESXi 8.0
ESXi 8.0 U1
LACP logging is set to DEBUG by default.
LACP Logging was changed from DEBUG to INFO in ESXi 8.0 U2. To resolve this issue, upgrade to ESXi 8.0 U2 or later.