Persistence mode in L2 networks (apache#183)

Co-authored-by: Pearl Dsilva <pearl.dsilva@shapeblue.com>

Author: 2 people

source/adminguide/networking/persistent_networks.rst

@@ -12,7 +12,7 @@
    KIND, either express or implied.  See the License for the
    specific language governing permissions and limitations
    under the License.
-   
+
 
 Persistent Networks
 -------------------
@@ -43,7 +43,7 @@ discontinued.
 Persistent Network Considerations
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
--  Persistent network is designed for isolated networks.
+-  Persistent network is designed for isolated and L2 networks.
 
 -  All default network offerings are non-persistent.
 
@@ -55,6 +55,12 @@ Persistent Network Considerations
    defines the network persistence. This in turn depends on whether
    persistent network is enabled in the selected network offering.
 
+-  Creation of an Isolated Persistent network will deploy a Virtual Router
+   when the network is created.
+
+-  Creation of an L2 Persistent network setups up the network devices namely,
+   bridges, VLANs or port-groups across all hosts in a zone.
+
 -  An existing network can be made persistent by changing its network
    offering to an offering that has the Persistent option enabled. While
    setting this property, even if the network has no running VMs, the
@@ -78,7 +84,7 @@ To create a persistent network, perform the following:
 
 #. Create a network offering with the Persistent option enabled.
 
-   See `"Creating a New Network Offering" 
+   See `"Creating a New Network Offering"
    <networking.html#creating-a-new-network-offering>`_.
 
 #. Select Network from the left navigation pane.