TNSPING & TRCROUTE Utility to test Connectivity from the Client to Listener
TNSPING UTILITY
TNSPING utility used to check whether the listener for a service on an Oracle Net network can be reached successfully.
Checking a Listener connectivity with TNSPING
TNSPING XE
C:\Users\oracle>tnsping XE
TNS Ping Utility for 64-bit Windows: Version 11.2.0.2.0 - Production on 26-JUN-2018 14:58:22
Copyright (c) 1997, 2014, Oracle. All rights reserved.
Used parameter files:
D:\oraclexe\app\oracle\product\11.2.0\server\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = IXC1-LP48ZJ622.FNFIS.com)(PO
RT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = XE)))
OK (160 msec)
Check Listener with TNSPING 8 times
Tnsping XE 8
C:\Users\oracle>tnsping XE 8
TNS Ping Utility for 64-bit Windows: Version 11.2.0.2.0 - Production on 26-JUN-2018 14:59:48
Copyright (c) 1997, 2014, Oracle. All rights reserved.
Used parameter files:
D:\oraclexe\app\oracle\product\11.2.0\server\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = IXC1-LP48ZJ622.FNFIS.com)(PO
RT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = XE)))
OK (10 msec)
OK (0 msec)
OK (20 msec)
OK (0 msec)
OK (0 msec)
OK (0 msec)
OK (0 msec)
OK (0 msec)
Checking an Invalid Net Service Name with TNSPING
TNSPING badname
C:\Users\oracle>tnsping badname
TNS Ping Utility for 64-bit Windows: Version 11.2.0.2.0 - Production on 26-JUN-2018 15:00:48
Copyright (c) 1997, 2014, Oracle. All rights reserved.
Used parameter files:
D:\oraclexe\app\oracle\product\11.2.0\server\network\admin\sqlnet.ora
TNS-03505: Failed to resolve name
Solution
Check the tns entry in tnsnames.ora file and use it for fixed the solution of error TNS-03505: Failed to resolve name.
Checking Valid Net Service Name but No Listener with TNSPING
In this case listener is not working then we will get the following error:
TSNPING XE
C:\Users\oracle>tnsping XE
TNS Ping Utility for 64-bit Windows: Version 11.2.0.2.0 - Production on 26-JUN-2018 15:06:11
Copyright (c) 1997, 2014, Oracle. All rights reserved.
Used parameter files:
D:\oraclexe\app\oracle\product\11.2.0\server\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = IXC1-LP48ZJ622.FNFIS.com)(PO
RT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = XE)))
TNS-12541: TNS:no listener
Solution
Start the Listener of the Server and then tried.
Note: lsnrctl start command is used for start the listener
TRCROUTE UTILITY
Trace Route Utility (TRCROUTE) is used in Linux and UNIX environments, enables administrators to find the path of a connection between client to server.
Note: Used in Linux or Unix Platform.
Example of Successfull Execution
trcroute XE
Trace Route Utility for Linux: Version 18.0.0.0.0 - Production on 21-JAN-2018
Copyright (c) 1999, 2018 Oracle Corporation. All rights reserved.
Route of TrcRoute:
------------------
Node: Client Time and address of entry into node:
-------------------------------------------------------------
09-NOV-2012 21:48:48 ADDRESS= PROTOCOL=TCP HOST=10.50.2.130 PORT=14001
Node: Server Time and address of entry into node:
-------------------------------------------------------------
09-NOV-2012 21:48:05 ADDRESS= PROTOCOL=TCP HOST=10.50.2.130 PORT=14001
Example when listener not working
trcroute XE
Trace Route Utility for Linux: Version 18.0.0.0.0 - Production on 21-JAN-2018
Copyright (c) 1999, 2018 Oracle Corporation. All rights reserved.
Route of TrcRoute:
------------------
Node: Client Time and address of entry into node:
-------------------------------------------------------------
25-FEB-2012 14:43:05 ADDRESS= PROTOCOL=TCP HOST=10.50.2.130 PORT=1521
TNS-12543: TNS:unable to connect to destination
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-03601: Failed in route information collection
