diff --git a/server/src/com/cloud/upgrade/dao/Upgrade301to302.java b/server/src/com/cloud/upgrade/dao/Upgrade301to302.java
index 217b55b8b36..0cd18bd9954 100644
--- a/server/src/com/cloud/upgrade/dao/Upgrade301to302.java
+++ b/server/src/com/cloud/upgrade/dao/Upgrade301to302.java
@@ -17,6 +17,9 @@ package com.cloud.upgrade.dao;
  */
 import java.io.File;
 import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -70,6 +73,7 @@ public class Upgrade301to302 implements DbUpgrade {
     @Override
     public void performDataMigration(Connection conn) {
         dropKeysIfExists(conn);
+        updateSharedNetworks(conn);
     }
 
     @Override
@@ -81,4 +85,76 @@ public class Upgrade301to302 implements DbUpgrade {
 
         return new File[] { new File(script) };
     }
+    
+    
+    protected void updateSharedNetworks(Connection conn) {
+        PreparedStatement pstmt = null;
+        ResultSet rs = null;
+        ResultSet rs1 = null;
+
+        try {
+            pstmt = conn.prepareStatement("select n.id, map.id from `cloud`.`network_offerings` n, `cloud`.`ntwk_offering_service_map` map " +
+            		"where n.id=map.network_offering_id and map.service='Lb' and map.provider='VirtualRouter';");
+            rs = pstmt.executeQuery();
+            while (rs.next()) {
+                long ntwkOffId = rs.getLong(1);
+                long mapId = rs.getLong(2);
+                
+                //check if the network offering has source nat service enabled
+                pstmt = conn.prepareStatement("select n.id from `cloud`.`network_offerings` n, `cloud`.`ntwk_offering_service_map`" +
+                		" map where n.id=map.network_offering_id and map.service='SourceNat' AND n.id=?");
+                pstmt.setLong(1, ntwkOffId);
+                rs1 = pstmt.executeQuery();
+                if (rs1.next()) {
+                    continue;
+                }
+                
+                //delete the service only when there are no lb rules for the network(s) using this network offering
+                pstmt = conn.prepareStatement("select * from  `cloud`.`firewall_rules` f, `cloud`.`networks` n, `cloud`.`network_offerings`" +
+                		" off where f.purpose='LB' and f.network_id=n.id and n.network_offering_id=off.id and off.id=?");
+                pstmt.setLong(1, ntwkOffId);
+                rs1 = pstmt.executeQuery();
+                if (rs1.next()) {
+                    continue;
+                }
+                
+                //delete lb service for the network offering
+                pstmt = conn.prepareStatement("DELETE FROM `cloud`.`ntwk_offering_service_map` WHERE id=?");
+                pstmt.setLong(1, mapId);
+                pstmt.executeUpdate();
+                s_logger.debug("Deleted lb service for network offering id=" + ntwkOffId + " as it doesn't have source nat service enabled");
+                
+                //delete lb service for the network
+                pstmt = conn.prepareStatement("SELECT map.id, n.id FROM `cloud`.`ntwk_service_map` map, networks n WHERE n.network_offering_id=? " +
+                		"AND  map.network_id=n.id AND map.service='Lb'");
+                pstmt.setLong(1, ntwkOffId);
+                rs1 = pstmt.executeQuery();
+                while (rs1.next()) {
+                    mapId = rs1.getLong(1);
+                    long ntwkId=rs1.getLong(2);
+                    
+                    pstmt = conn.prepareStatement("DELETE FROM `cloud`.`ntwk_service_map` WHERE id=?");
+                    pstmt.setLong(1, mapId);
+                    pstmt.executeUpdate();
+                    s_logger.debug("Deleted lb service for network id=" + ntwkId + " as it doesn't have source nat service enabled");
+                }
+               
+            }
+        } catch (SQLException e) {
+            throw new CloudRuntimeException("Unable to update shared networks due to exception while executing query " + pstmt, e);
+        } finally {
+            try {
+                if (rs != null) {
+                    rs.close();
+                }
+                if (rs1 != null) {
+                    rs1.close();
+                }
+                if (pstmt != null) {
+                    pstmt.close();
+                }
+            } catch (SQLException e) {
+            }
+        }
+    }
 }
diff --git a/setup/db/db/schema-301to302-cleanup.sql b/setup/db/db/schema-301to302-cleanup.sql
index b15c0409c46..151d98365ec 100644
--- a/setup/db/db/schema-301to302-cleanup.sql
+++ b/setup/db/db/schema-301to302-cleanup.sql
@@ -27,5 +27,4 @@ ALTER TABLE `cloud_usage`.`usage_ip_address` MODIFY `id` bigint(20) UNSIGNED NOT
 ALTER TABLE `cloud_usage`.`usage_ip_address` MODIFY  `is_source_nat` smallint(1) NOT NULL;
 ALTER TABLE `cloud_usage`.`usage_network` MODIFY `host_id` bigint(20) UNSIGNED NOT NULL;
 ALTER TABLE `cloud_usage`.`usage_network` MODIFY `host_type` varchar(32) DEFAULT NULL;
-ALTER TABLE `cloud_usage`.`user_statistics` MODIFY `device_id` bigint(20) UNSIGNED NOT NULL;
-
+ALTER TABLE `cloud_usage`.`user_statistics` MODIFY `device_id` bigint(20) UNSIGNED NOT NULL;
\ No newline at end of file
diff --git a/setup/db/db/schema-301to302.sql b/setup/db/db/schema-301to302.sql
index 7f3cd193174..3d4434ae8db 100755
--- a/setup/db/db/schema-301to302.sql
+++ b/setup/db/db/schema-301to302.sql
@@ -22,3 +22,7 @@ INSERT IGNORE INTO `cloud`.`configuration` VALUES ('Advanced', 'DEFAULT', 'manag
 INSERT IGNORE INTO `cloud`.`configuration` VALUES ('Advanced', 'DEFAULT', 'management-server', 'secstorage.service.offering', NULL, 'Service offering used by secondary storage; if NULL - system offering will be used');
 
 DROP INDEX `i_host__allocation_state` ON `cloud`.`host`;
+
+UPDATE `cloud`.`network_offerings` SET display_text='Offering for Isolated networks with Source Nat service enabled' WHERE name='DefaultIsolatedNetworkOfferingWithSourceNatService' and `cloud`.`network_offerings`.default=1;
+UPDATE `cloud`.`network_offerings` SET display_text='Offering for Isolated networks with no Source Nat service' WHERE name='DefaultIsolatedNetworkOffering' and `cloud`.`network_offerings`.default=1;
+UPDATE `cloud`.`network_offerings` SET display_text='Offering for Shared networks' WHERE name='DefaultSharedNetworkOffering' and `cloud`.`network_offerings`.default=1;