TNS Protocol error in 11g when creating a new database

Question

Hi,
I have installed 11g R2 64 Bit on Solaris 10 64 Bit. The installation happened successfully. Now when I use DBCA to create a new database it says ORA-12560 TNS:Protocol Adapter Error. I am accessing the server console and performing all operations there itself, I can't understand this issue.
I have also created a listener.ora and tnsnames.ora and its running successfully (but don't really know if it is needed since I have not even created the database). The sqlnet.log shows following
=====================================================
Fatal NI connect error 12560, connecting to:
(DESCRIPTION=(ADDRESS=(PROTOCOL=beq)(PROGRAM=/export/home/oracle/product/11.1.0/db_1/bin/oracle)(ARGV0=oracleTSG11G)(ARGS='(DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))')(DETACH=NO))(CONNECT_DATA=(CID=(PROGRAM=sqlplus)(HOST=sol11oracle-vm)(USER=oracle))))
VERSION INFORMATION:
TNS for Solaris: Version 11.2.0.1.0 - Production
Oracle Bequeath NT Protocol Adapter for Solaris: Version 11.2.0.1.0 - Production
Time: 17-DEC-2009 10:30:52
Tracing not turned on.
Tns error struct:
ns main err code: 12560
TNS-12560: TNS:protocol adapter error
ns secondary err code: 0
nt main err code: 530
TNS-00530: Protocol adapter error
=====================================================
Some excerpts from the trace is:
=====================================================
2009-12-17 11:14:38.776040 : nsopen:opening transport...
2009-12-17 11:14:38.776097 : ntpcon:entry
2009-12-17 11:14:38.776140 : ntpcon:toc = 1
2009-12-17 11:14:38.776196 : sntpcall:entry
2009-12-17 11:14:38.776221 : sntpcall:not detaching from parent with additional fork
2009-12-17 11:14:38.796184 : sntpcall:hdl[IR]=13, hdl[IW]=12
2009-12-17 11:14:38.796429 : sntpcall:result string is NTP8 0
2009-12-17 11:14:38.796527 : sntpcall:Can't read from pipe; err[1] = 8
2009-12-17 11:14:38.796571 : sntpcall:exit
2009-12-17 11:14:38.796674 : ntpcon:exit
2009-12-17 11:14:38.796755 : nserror:entry
2009-12-17 11:14:38.796776 : nserror:nsres: id=0, op=65, ns=12560, ns2=0; nt[0]=530, nt[1]=8, nt[2]=0; ora[0]=0, ora[1]=0, ora[2]=0
2009-12-17 11:14:38.796861 : nsopen:unable to open transport
2009-12-17 11:14:38.796884 : nstoClearTimeout:entry
=====================================================
In /etc/host i have added server ip with host name.
$ more /etc/host
172.26.171.57 sol11oracle-vm
The .profile of oracle user
export TMP=/tmp
export TMPDIR=$TMP
export ORACLE_BASE=/export/home/oracle
export ORACLE_HOME=$ORACLE_BASE/product/11.1.0/db_1
export ORACLE_SID=TSG11G
export PATH=$PATH:/usr/local/bin:/usr/ccs/bin:/usr/sfw/bin:$ORACLE_HOME/bin
Please suggest.

Answer 1

$ more tnsnames.ora
# tnsnames.ora Network Configuration File: /export/home/oracle/product/11.1.0/db_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
TSG11G =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.26.171.57)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = TSG11G)
$ tnsping tsg11g
TNS Ping Utility for Solaris: Version 11.2.0.1.0 - Production on 17-DEC-2009 11:37:10
Copyright (c) 1997, 2009, Oracle. All rights reserved.
Used parameter files:
/export/home/oracle/product/11.1.0/db_1/network/admin/sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 172.26.171.57)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = TSG11G)))
OK (50 msec)