Directory location for the agent log files. If not specified, use the default log file location under %INSTALL_DIR%\Tran ...

Directory location for the agent log files. If not specified, use the default log file location under %INSTALL_DIR%	ransportRoles\Logs\%TRANSPORT_ROLE%\AgentLog (where %INSTALL_DIR% is the installation root for the Exchange server and %TRANSPORT_ROLE% is one of Edge,Hub,FrontEnd,Mailbox).