是否网络设置有问题?

ora110

本地solaris 5.8  有安装oracle 7.3.4的agent。但是好像只开放了一个端口，另一个端口有异常？\r\n\r\n从另一台机器tnsping\r\nAttempting to contact (ADDRESS = (PROTOCOL = TCP)(HOST = 10.88.21.41)(port=174)\r\nOK (130 msec)\r\n\r\nAttempting to contact (ADDRESS = (PROTOCOL = TCP)(HOST = 10.88.21.41)(port=1754))\r\nTNS-12537: TNS:connection closed\r\n\r\nwhy？\r\n----------------------------------------------------------------------------\r\noracle_mvkdb>vi /home/oracle/product/734/network/trace/dbsnmpw.trc\r\n\"/home/oracle/product/734/network/trace/dbsnmpw.trc\" 2525 lines, 65259 characters \r\n\r\nDBSNMP for Solaris: Version 2.3.4.0.0 - Production on 28-DEC-07 10:40:45\r\n\r\nCopyright (c) Oracle Corporation 1997.  All rights reserved.\r\n\r\n\r\n--- TRACE CONFIGURATION INFORMATION FOLLOWS ---\r\nNew trace stream is \"/home/oracle/product/734/network/trace/dbsnmpw.trc\"\r\nNew trace level is 13\r\n--- TRACE CONFIGURATION INFORMATION ENDS ---\r\n\r\n--- PARAMETER SOURCE INFORMATION FOLLOWS ---\r\nAttempted load of system pfile source /home/oracle/product/734/network/admin/snmp_rw.ora\r\nParameter source loaded successfully\r\n\r\nAttempted load of local pfile source\r\nParameter source was not loaded\r\n\r\nAttempted load of command line source\r\nParameter source was not loaded\r\n\r\n -> PARAMETER TABLE LOAD RESULTS FOLLOW <-\r\nSuccessful parameter table load\r\n -> PARAMETER TABLE HAS THE FOLLOWING CONTENTS <-\r\n  snmp.index.EBU = 4\r\n  snmp.contact.test7 =\r\n  snmp.shortname.LISTENER = LISTENER\r\n  dbsnmp.address = (ADDRESS=(PROTOCOL=tcp)(HOST=10.88.21.41)(PORT=174)\r\n  snmp.index.test = 3\r\n  snmp.SID.mvkdb_bk_server = mvkdb\r\n  snmp.contact.mvkdb_bk_server =\r\n  snmp.contact.EBU =\r\n  NMI.TRACE_LEVEL = 13\r\n  snmp.index.test7 = 2\r\n  snmp.address.mvkdb_bk_server = (DESCRIPTION=(ADDRESS_LIST =(ADDRESS=(PROTOCOL=IPC)(KEY= mvkdb))(ADDRESS=(PROTOCOL=IPC)(KEY= FNDFS)\r\n)(ADDRESS =(PROTOCOL = TCP)(Host = 10.88.21.41)(Port = 1521)))(CONNECT_DATA=(SID=mvkdb)))\r\n  snmp.configfile.LISTENER = /home/oracle/product/734/network/admin/listener.ora\r\n  snmp.visibleservices = (LISTENER, mvkdb_bk_server)\r\n  snmp.index.mvkdb_bk_server = 6\r\n  dbsnmp.spawnaddress = (ADDRESS= (PROTOCOL=tcp)(HOST=10.88.21.41)(PORT=1754))\r\n  snmp.contact.LISTENER =\r\n  snmp.contact.test =\r\n  snmp.longname.LISTENER = LISTENER_bk_server\r\n  snmp.oraclehome.mvkdb_bk_server = /home/oracle/product/734\r\n  snmp.index.LISTENER = 1\r\n--- PARAMETER SOURCE INFORMATION ENDS ---\r\n\r\n--- LOG CONFIGURATION INFORMATION FOLLOWS ---\r\nLog stream will be \"/home/oracle/product/734/network/log/dbsnmpw.log\"\r\nLog stream validation requested\r\nLog stream is valid\r\n--- LOG CONFIGURATION INFORMATION ENDS ---\r\n\r\nosnqig: entry\r\nosnqig: Count in the NL global area is now 2\r\nosnqig: Count in OSN global area now: 1\r\nnrigbi: entry\r\nnrigbni: entry\r\nnrigbni: Unable to get data from navigation file tnsnav.ora\r\n:q\r\noracle_mvkdb>pwd\r\n/home/oracle/product/734/network/log\r\noracle_mvkdb>find /home/oracle -name \'tnsnav.ora\"\r\n> \r\noracle_mvkdb>find /home/oracle -name \"tnsnav.ora\"\r\noracle_mvkdb>id\r\nuid=100(oracle) gid=100(dba)\r\noracle_mvkdb>vi /home/oracle/product/734/network/trace/dbsnmpw.trc\r\n\"/home/oracle/product/734/network/trace/dbsnmpw.trc\" 2701 lines, 69615 characters \r\n\r\nDBSNMP for Solaris: Version 2.3.4.0.0 - Production on 28-DEC-07 10:40:45\r\n\r\nCopyright (c) Oracle Corporation 1997.  All rights reserved.\r\n\r\n\r\n--- TRACE CONFIGURATION INFORMATION FOLLOWS ---\r\nNew trace stream is \"/home/oracle/product/734/network/trace/dbsnmpw.trc\"\r\nNew trace level is 13\r\n--- TRACE CONFIGURATION INFORMATION ENDS ---\r\n\r\n--- PARAMETER SOURCE INFORMATION FOLLOWS ---\r\nAttempted load of system pfile source /home/oracle/product/734/network/admin/snmp_rw.ora\r\nParameter source loaded successfully\r\n\r\nAttempted load of local pfile source\r\nParameter source was not loaded\r\n\r\nAttempted load of command line source\r\nParameter source was not loaded\r\n\r\n -> PARAMETER TABLE LOAD RESULTS FOLLOW <-\r\nSuccessful parameter table load\r\n -> PARAMETER TABLE HAS THE FOLLOWING CONTENTS <-\r\n  snmp.index.EBU = 4\r\n  snmp.contact.test7 =\r\n  snmp.shortname.LISTENER = LISTENER\r\n  dbsnmp.address = (ADDRESS=(PROTOCOL=tcp)(HOST=10.88.21.41)(PORT=174)\r\n  snmp.index.test = 3\r\n  snmp.SID.mvkdb_bk_server = mvkdb\r\n  snmp.contact.mvkdb_bk_server =\r\n  snmp.contact.EBU =\r\n  NMI.TRACE_LEVEL = 13\r\n  snmp.index.test7 = 2\r\n  snmp.address.mvkdb_bk_server = (DESCRIPTION=(ADDRESS_LIST =(ADDRESS=(PROTOCOL=IPC)(KEY= mvkdb))(ADDRESS=(PROTOCOL=IPC)(KEY= FNDFS)\r\n)(ADDRESS =(PROTOCOL = TCP)(Host = 10.88.21.41)(Port = 1521)))(CONNECT_DATA=(SID=mvkdb)))\r\n  snmp.configfile.LISTENER = /home/oracle/product/734/network/admin/listener.ora\r\n  snmp.visibleservices = (LISTENER, mvkdb_bk_server)\r\n  snmp.index.mvkdb_bk_server = 6\r\n  dbsnmp.spawnaddress = (ADDRESS= (PROTOCOL=tcp)(HOST=10.88.21.41)(PORT=1754))\r\n  snmp.contact.LISTENER =\r\n\r\nDBSNMP for Solaris: Version 2.3.4.0.0 - Production on 28-DEC-07 10:40:45