tns-12541 no listener while using connection manager

[M B Shibu]

Hi friends......... I am having a problem when trying to connect through connection manger  i have in my tnsnames.ora and cman.ora as given below then use_cman = TRUE in sqlnet.ora and my server is configured for MTS . It's on oracle 8.1.7 in win 2k . ------------------------- TNSNAMES.ORA ------------------------- ABC =   (DESCRIPTION =     (load_balance=on)    (failover=on)     (ADDRESS_LIST =      ( SOURCE_ROUTE = YES )       ( ADDRESS = ( PROTOCOL = TCP )( HOST = oracle )(SERVICE = CMAN)( PORT =  1610 ))       ( ADDRESS = (PROTOCOL = TCP)(HOST = oracle)(SERVICE = CMAN )( PORT = 1521))     )     ( CONNECT_DATA =        ( SERVICE_NAME = oracledb )      )    ) ----------------------- CMAN.ORA ----------------------- cman = (ADDRESS_LIST=             ( ADDRESS=( PROTOCOL=tcp )                       ( HOST= oracle )                       ( PORT=1630 )                       ( QUEUESIZE=32 )             )        ) cman_profile = ( parameter_list=                    ( MAXIMUM_RELAYS=1024 )                    ( LOG_LEVEL=1 )                    ( TRACING=yes )                    ( RELAY_STATISTICS=yes )                    ( SHOW_TNS_INFO=yes )                    ( USE_ASYNC_CALL=yes )                    ( AUTHENTICATION_LEVEL=0 )                    ( REMOTE_ADMIN=FALSE )                ) CMAN_ADMIN = (ADDRESS=(PROTOCOL=tcp)(HOST=oracle)(PORT=1650)) CMANAGER_NAME = cman   But i am getting the  error 12541  no listener .Please help me in solving this This is   urgent   shibu