Friends ,

I have completed succesfully Oracle 9.2.0.4 in RHEL4 .And also I can start my "agentctl" perfectly .
But after some times when I start "agentctl start" then I got the following Errors :

1)

[oracle@server ~]$ agentctl start

DBSNMP for Linux: Version 9.2.0.4.0 - Production on 25-FEB-2007 20:16:07

Copyright (c) 2003 Oracle Corporation. All rights reserved.

Starting Oracle Intelligent Agent...\nAgent startup failed. Check /u01/app/oracle/product/9.2.0/network/log/dbsnmp.nohup for details

I check the details and found :

[oracle@server ~]$ tail -f /u01/app/oracle/product/9.2.0/network/log/dbsnmp.log DBSNMP for Linux: Version 9.2.0.4.0 - Production on 25-FEB-2007 20:16:11

Copyright (c) 2003 Oracle Corporation. All rights reserved.

System parameter file is /u01/app/oracle/product/9.2.0/network/admin/snmp_ro.oraLog messages written to /u01/app/oracle/product/9.2.0/network/log/dbsnmp.log
Trace information written to /u01/app/oracle/product/9.2.0/network/trace/dbsnmp_3914.trc
Trace level is currently 0

NMS-00001: Warning: dbsnmp unable to connect to SNMP master agent

PLZ GIVE ME A SOLUTION .. HOW CAN I START MU "AGENTCTL" AGAIN ... ...