Unable to tnsping

Question

Hi all
I have 2 RHEL servers rhel and rhel1. DNS was not configured. I installed 11.2.0.2 databases on both nodes. Iam unable to do tnsping from one server to other and vice versa.
configuartion of listener and tnsnames files:
rhel (192.168.172.120):
listener.ora
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST =192.168.172.120)(PORT = 1521))
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = rhel)
(ORACLE_HOME = /oracle/app/product/11.2.0/dbhome_1/)
(SID_NAME = rhel)
INBOUND_CONNECT_TIMEOUT_rhel=0
tnsnames.ora
RHEL1 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST =192.168.172.122)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME =rhel1)
rhel1 (192.168.172.122):
listener.ora
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST =192.168.172.122)(PORT = 1521))
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = rhel1)
(ORACLE_HOME = /oracle/app/product/11.2.0/dbhome_1/)
(SID_NAME = rhel1)
INBOUND_CONNECT_TIMEOUT_rhel1=0
tnsnames.ora
RHEL =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST =192.168.172.120)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME =rhel)
when i tried to tnsping it failed with
[oracle@rhel1 admin]$ tnsping rhel
TNS Ping Utility for Linux: Version 11.2.0.2.0 - Production on 28-JAN-2012 15:53:36
Copyright (c) 1997, 2010, Oracle. All rights reserved.
Used parameter files:
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST =192.168.172.120)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME =rhel)))
TNS-12543: TNS:destination host unreachable
Iam getting same error on both nodes.
listener status:
ON RHEL:
[oracle@rhel admin]$ lsnrctl status listener
LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 28-JAN-2012 15:54:34
Copyright (c) 1991, 2010, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.172.120)(PORT=1521)))
STATUS of the LISTENER
Alias listener
Version TNSLSNR for Linux: Version 11.2.0.2.0 - Production
Start Date 28-JAN-2012 15:11:32
Uptime 0 days 0 hr. 43 min. 2 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /oracle/app/product/11.2.0/dbhome_1/network/admin/listener.ora
Listener Log File /oracle/app/diag/tnslsnr/rhel/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.172.120)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=extproc)))
Services Summary...
Service "rhel" has 1 instance(s).
Instance "rhel", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
ON RHEL1:
[oracle@rhel1 admin]$ lsnrctl status listener
LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 28-JAN-2012 15:55:24
Copyright (c) 1991, 2010, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.172.122)(PORT=1521)))
STATUS of the LISTENER
Alias listener
Version TNSLSNR for Linux: Version 11.2.0.2.0 - Production
Start Date 28-JAN-2012 15:06:38
Uptime 0 days 0 hr. 48 min. 46 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /oracle/app/product/11.2.0/dbhome_1/network/admin/listener.ora
Listener Log File /oracle/app/diag/tnslsnr/rhel1/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=rhel1)(PORT=1521)))
Services Summary...
Service "rhel1" has 2 instance(s).
Instance "rhel1", status UNKNOWN, has 1 handler(s) for this service...
Instance "rhel1", status READY, has 1 handler(s) for this service...
Service "rhelXDB" has 1 instance(s).
Instance "rhel1", status READY, has 1 handler(s) for this service...
The command completed successfully
Please help
Thanks,
sandy

Answer 1

Hi
Thanks for your reply.
Here is the ping response:
From RHEL1 node
[oracle@rhel1 admin]$ ping 192.168.172.120
PING 192.168.172.120 (192.168.172.120) 56(84) bytes of data.
64 bytes from 192.168.172.120: icmp_seq=1 ttl=64 time=1.93 ms
64 bytes from 192.168.172.120: icmp_seq=2 ttl=64 time=1.06 ms
64 bytes from 192.168.172.120: icmp_seq=3 ttl=64 time=1.15 ms
64 bytes from 192.168.172.120: icmp_seq=4 ttl=64 time=0.872 ms
--- 192.168.172.120 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3006ms
rtt min/avg/max/mdev = 0.872/1.255/1.930/0.405 ms
From RHEl node:
[oracle@rhel admin]$ hostname
rhel
[oracle@rhel admin]$ ping 192.168.172.122
PING 192.168.172.122 (192.168.172.122) 56(84) bytes of data.
64 bytes from 192.168.172.122: icmp_seq=1 ttl=64 time=0.927 ms
64 bytes from 192.168.172.122: icmp_seq=2 ttl=64 time=1.99 ms
64 bytes from 192.168.172.122: icmp_seq=3 ttl=64 time=1.11 ms
64 bytes from 192.168.172.122: icmp_seq=4 ttl=64 time=0.906 ms
--- 192.168.172.122 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3016ms
rtt min/avg/max/mdev = 0.906/1.236/1.992/0.444 ms
Thanks
Sandy