diff --git a/api/src/com/cloud/api/commands/CreateVlanIpRangeCmd.java b/api/src/com/cloud/api/commands/CreateVlanIpRangeCmd.java
index 3353af834f6..aa23f51262a 100644
--- a/api/src/com/cloud/api/commands/CreateVlanIpRangeCmd.java
+++ b/api/src/com/cloud/api/commands/CreateVlanIpRangeCmd.java
@@ -29,6 +29,7 @@ import com.cloud.api.response.VlanIpRangeResponse;
 import com.cloud.dc.Vlan;
 import com.cloud.exception.ConcurrentOperationException;
 import com.cloud.exception.InsufficientCapacityException;
+import com.cloud.exception.InvalidParameterValueException;
 import com.cloud.exception.ResourceUnavailableException;
 import com.cloud.user.Account;
 
@@ -78,6 +79,20 @@ public class CreateVlanIpRangeCmd extends BaseCmd {
     @Parameter(name=ApiConstants.NETWORK_ID, type=CommandType.LONG, description="the network id")
     private Long networkID;
 
+    @Parameter(name=ApiConstants.PHYSICAL_NETWORK_ID, type=CommandType.LONG, description="the Physical Network ID")
+    private Long physicalNetworkId;
+    
+    public Long getPhysicalNetworkId() {
+        if (physicalNetworkId != null) {
+            return physicalNetworkId;
+        } else if (zoneId != null) {
+            return _networkService.translateZoneToPhysicalNetwork(zoneId);
+        } else {
+            throw new InvalidParameterValueException("Either zoneId or physicalNetworkId have to be specified");
+        }
+    }
+    
+    
     /////////////////////////////////////////////////////
     /////////////////// Accessors ///////////////////////
     /////////////////////////////////////////////////////
diff --git a/api/src/com/cloud/api/commands/UpdatePhysicalNetworkCmd.java b/api/src/com/cloud/api/commands/UpdatePhysicalNetworkCmd.java
index 9bf826d4fcd..74398b20a42 100644
--- a/api/src/com/cloud/api/commands/UpdatePhysicalNetworkCmd.java
+++ b/api/src/com/cloud/api/commands/UpdatePhysicalNetworkCmd.java
@@ -52,9 +52,6 @@ public class UpdatePhysicalNetworkCmd extends BaseAsyncCmd {
     @Parameter(name=ApiConstants.TAGS, type=CommandType.LIST, collectionType=CommandType.STRING, description="Tag the physical network")
     private List<String> tags;
     
-    @Parameter(name=ApiConstants.ISOLATION_METHODS, type=CommandType.LIST, collectionType=CommandType.STRING, description="the isolation method for the physical network[VLAN/L3/GRE]")
-    private List<String> isolationMethods;
-
     @Parameter(name=ApiConstants.STATE, type=CommandType.STRING, description="Enabled/Disabled")
     private String state;
 
@@ -69,10 +66,6 @@ public class UpdatePhysicalNetworkCmd extends BaseAsyncCmd {
         return tags;
     }
 
-    public List<String> getIsolationMethods() {
-        return isolationMethods;
-    }
-    
     public String getNetworkSpeed() {
         return speed;
     }
@@ -105,7 +98,7 @@ public class UpdatePhysicalNetworkCmd extends BaseAsyncCmd {
     
     @Override
     public void execute(){
-        PhysicalNetwork result = _networkService.updatePhysicalNetwork(getId(),getNetworkSpeed(), getIsolationMethods(), getTags(), getVlan(), getState());
+        PhysicalNetwork result = _networkService.updatePhysicalNetwork(getId(),getNetworkSpeed(), getTags(), getVlan(), getState());
         if (result != null) {
             PhysicalNetworkResponse response = _responseGenerator.createPhysicalNetworkResponse(result);
             response.setResponseName(getCommandName());
diff --git a/api/src/com/cloud/network/NetworkService.java b/api/src/com/cloud/network/NetworkService.java
index 9e99c60bdf2..fa01ffaaa04 100644
--- a/api/src/com/cloud/network/NetworkService.java
+++ b/api/src/com/cloud/network/NetworkService.java
@@ -92,7 +92,7 @@ public interface NetworkService {
 
     List<? extends PhysicalNetwork> searchPhysicalNetworks(Long id, Long zoneId, String keyword, Long startIndex, Long pageSize);
 
-    PhysicalNetwork updatePhysicalNetwork(Long id, String networkSpeed, List<String> isolationMethods, List<String> tags, String newVnetRangeString, String state);
+    PhysicalNetwork updatePhysicalNetwork(Long id, String networkSpeed, List<String> tags, String newVnetRangeString, String state);
 
     boolean deletePhysicalNetwork(Long id);
 
diff --git a/server/src/com/cloud/network/NetworkManagerImpl.java b/server/src/com/cloud/network/NetworkManagerImpl.java
index 212df37fe69..30627f3eba8 100755
--- a/server/src/com/cloud/network/NetworkManagerImpl.java
+++ b/server/src/com/cloud/network/NetworkManagerImpl.java
@@ -3573,7 +3573,7 @@ public class NetworkManagerImpl implements NetworkManager, NetworkService, Manag
     @Override
     @DB
     @ActionEvent(eventType = EventTypes.EVENT_PHYSICAL_NETWORK_UPDATE, eventDescription = "updating physical network", async = true)
-    public PhysicalNetwork updatePhysicalNetwork(Long id, String networkSpeed, List<String> isolationMethods, List<String> tags, String newVnetRangeString, String state) {
+    public PhysicalNetwork updatePhysicalNetwork(Long id, String networkSpeed, List<String> tags, String newVnetRangeString, String state) {
         
         // verify input parameters
         PhysicalNetworkVO network = _physicalNetworkDao.findById(id);
@@ -3585,10 +3585,6 @@ public class NetworkManagerImpl implements NetworkManager, NetworkService, Manag
             throw new InvalidParameterException("Unable to support more than one tag on network yet");
         }
 
-        if (isolationMethods != null && isolationMethods.size() > 1) {
-            throw new InvalidParameterException("Only one isolationMethod can be specified for a physical network at this time");
-        }
-
         PhysicalNetwork.State networkState = null;
         if (state != null && !state.isEmpty()) {
             try {
@@ -3606,21 +3602,6 @@ public class NetworkManagerImpl implements NetworkManager, NetworkService, Manag
             network.setTags(tags);
         }
         
-        if (isolationMethods != null) {
-            for(String isMethod : isolationMethods){
-                PhysicalNetwork.IsolationMethod isolationMethodVal = null;
-                if (isMethod != null && !isMethod.isEmpty()) {
-                    try {
-                        isolationMethodVal = PhysicalNetwork.IsolationMethod.valueOf(isMethod.toUpperCase());
-                    } catch (IllegalArgumentException ex) {
-                        throw new InvalidParameterValueException("Unable to resolve IsolationMethod '" + isMethod + "' to a supported value {VLAN or L3 or GRE}");
-                    }
-                }
-            }
-            
-            network.setIsolationMethods(isolationMethods);
-        }
-        
         if(networkSpeed != null){
             network.setSpeed(networkSpeed);
         }
diff --git a/setup/db/create-schema.sql b/setup/db/create-schema.sql
index eaa3f727fd3..5332553ec0d 100755
--- a/setup/db/create-schema.sql
+++ b/setup/db/create-schema.sql
@@ -1806,6 +1806,15 @@ CREATE TABLE `cloud`.`physical_network_traffic_types` (
   UNIQUE KEY(`physical_network_id`, `traffic_type`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 
+CREATE TABLE `cloud`.`traffic_type_details` (
+  `id` bigint unsigned NOT NULL auto_increment,
+  `traffic_type_id` bigint unsigned NOT NULL COMMENT 'traffic_type id',
+  `name` varchar(255) NOT NULL,
+  `value` varchar(255) NOT NULL,
+  PRIMARY KEY (`id`),
+  CONSTRAINT `fk_traffic_type_details__traffic_type_id` FOREIGN KEY (`traffic_type_id`) REFERENCES `physical_network_traffic_types`(`id`) ON DELETE CASCADE
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+
 CREATE TABLE `cloud`.`physical_network_service_providers` (
   `id` bigint unsigned NOT NULL AUTO_INCREMENT COMMENT 'id',
   `physical_network_id` bigint unsigned NOT NULL COMMENT 'id of the physical network',