log4j2.xml

<?xml version="1.0" encoding="UTF-8"?>
    <Configuration status="TRACE">
      <Appenders>
        <Console name="trace" target="SYSTEM_OUT">
          <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
        </Console>
      </Appenders>
      <Loggers>
        <Logger name="BGP4Peer" level="trace" additivity="false">
          <AppenderRef ref="Console"/>
        </Logger>
        <Logger name="BGP4Server" level="trace" additivity="false">
          <AppenderRef ref="Console"/>
        </Logger>
        <Logger name="BGP4Parser" level="trace" additivity="false">
          <AppenderRef ref="Console"/>
        </Logger>
        <Root level="trace">
          <AppenderRef ref="Console"/>
        </Root>
      </Loggers>
    </Configuration>