diff --git a/src/jdbc/cubrid/jdbc/driver/CUBRIDDriver.java b/src/jdbc/cubrid/jdbc/driver/CUBRIDDriver.java
index e27b355..90263a4 100644
--- a/src/jdbc/cubrid/jdbc/driver/CUBRIDDriver.java
+++ b/src/jdbc/cubrid/jdbc/driver/CUBRIDDriver.java
@@ -87,6 +87,7 @@ public class CUBRIDDriver implements Driver {
             "jdbc:cubrid(-oracle|-mysql)?:([a-zA-Z_0-9\\.-]*):([0-9]*):([^:]+):([^:]*):([^:]*):(\\?[a-zA-Z_0-9]+=[^&=?]+(&[a-zA-Z_0-9]+=[^&=?]+)*)?";
     private static final String CUBRID_JDBC_URL_HEADER = "jdbc:cubrid";
     private static final String ENV_JDBC_PROP_NAME = "CUBRID_JDBC_PROP";
+    private int conn_count = 0;
 
     static {
         try {
@@ -265,9 +266,9 @@ public Connection connect(String url, Properties info) throws SQLException {
                 altHostList.add(st.nextToken());
             }
 
-            if (connProperties.getConnLoadBal()) {
-                Collections.shuffle(altHostList);
-            }
+            String loadBalValue = connProperties.getConnLoadBal();
+
+            adjustHostList(loadBalValue, altHostList);
             try {
                 u_con =
                         (UClientSideConnection)
@@ -346,4 +347,24 @@ private boolean existPropertiesFile(String filePath) {
         File file = new File(filePath);
         return file.exists();
     }
+
+    private void adjustHostList(String loadBalValue, ArrayList<String> altHostList) {
+        if (ConnectionProperties.LB_VAL_TRUE.equals(loadBalValue)
+                || ConnectionProperties.LB_VAL_ROUND_ROBIN.equals(loadBalValue)) {
+            int count = increment_conn_count();
+            int dist = (count > altHostList.size()) ? (count - 1) % altHostList.size() : count - 1;
+            Collections.rotate(altHostList, -dist);
+        } else if (ConnectionProperties.LB_VAL_SHUFFLE.equals(loadBalValue)) {
+            Collections.shuffle(altHostList);
+        } else if (ConnectionProperties.LB_VAL_FALSE.equals(loadBalValue)) {
+            // do nothing
+        } else {
+            throw new IllegalArgumentException("Invalid loadBalValue: " + loadBalValue);
+        }
+    }
+
+    private synchronized int increment_conn_count() {
+        conn_count = (conn_count >= Integer.MAX_VALUE) ? 1 : conn_count + 1;
+        return conn_count;
+    }
 }
diff --git a/src/jdbc/cubrid/jdbc/driver/ConnectionProperties.java b/src/jdbc/cubrid/jdbc/driver/ConnectionProperties.java
index 33eed86..4a692b0 100644
--- a/src/jdbc/cubrid/jdbc/driver/ConnectionProperties.java
+++ b/src/jdbc/cubrid/jdbc/driver/ConnectionProperties.java
@@ -43,6 +43,10 @@
 
 public class ConnectionProperties {
     static ArrayList<Field> PROPERTY_LIST = new ArrayList<Field>();
+    public static final String LB_VAL_TRUE = "true";
+    public static final String LB_VAL_FALSE = "false";
+    public static final String LB_VAL_SHUFFLE = "sh";
+    public static final String LB_VAL_ROUND_ROBIN = "rr";
 
     static {
         try {
@@ -108,8 +112,8 @@ public void setProperties(Properties info) throws SQLException {
                         CUBRIDJDBCErrorCode.invalid_url, " illegal access properties", null);
             }
         }
-        if (this.getConnLoadBal() && this.getAltHosts() == null) {
-            this.connLoadBal.setValue("false");
+        if (!this.getConnLoadBal().equals(LB_VAL_FALSE) && this.getAltHosts() == null) {
+            this.connLoadBal.setValue(LB_VAL_FALSE);
         }
         if (this.getReconnectTime() < (BrokerHealthCheck.MONITORING_INTERVAL / 1000)) {
             this.rcTime.setValue((Integer) (BrokerHealthCheck.MONITORING_INTERVAL / 1000));
@@ -335,6 +339,30 @@ boolean validateValue(Object o) {
         }
     }
 
+    class StringLoadBalanceProperty extends ConnectionProperty {
+        String[] allowableValues = {LB_VAL_TRUE, LB_VAL_FALSE, LB_VAL_SHUFFLE, LB_VAL_ROUND_ROBIN};
+
+        StringLoadBalanceProperty(String propertyName, Object defaultValue) {
+            super(propertyName, defaultValue, 0, 0);
+        }
+
+        String getValueAsString() {
+            return (String) valueAsObject;
+        }
+
+        @Override
+        boolean validateValue(Object o) {
+            if (o instanceof String) {
+                for (int i = 0; i < allowableValues.length; i++) {
+                    if (allowableValues[i].equalsIgnoreCase((String) o)) {
+                        return true;
+                    }
+                }
+            }
+            return false;
+        }
+    }
+
     BooleanConnectionProperty logOnException =
             new BooleanConnectionProperty("logOnException", false);
 
@@ -369,7 +397,8 @@ private int getDefaultConnectTimeout() {
 
     StringConnectionProperty altHosts = new StringConnectionProperty("altHosts", null);
 
-    BooleanConnectionProperty connLoadBal = new BooleanConnectionProperty("loadBalance", false);
+    StringLoadBalanceProperty connLoadBal =
+            new StringLoadBalanceProperty("loadBalance", LB_VAL_FALSE);
 
     ZeroDateTimeBehaviorConnectionProperty zeroDateTimeBehavior =
             new ZeroDateTimeBehaviorConnectionProperty(
@@ -440,8 +469,8 @@ public String getAltHosts() {
         return altHosts.getValueAsString();
     }
 
-    public boolean getConnLoadBal() {
-        return connLoadBal.getValueAsBoolean();
+    public String getConnLoadBal() {
+        return connLoadBal.getValueAsString();
     }
 
     public String getZeroDateTimeBehavior() {