anchor.diff:    </tr>
   </table> 
   
  -##<a id='app-comm'></a> App Instance Communication
   
  +## <a id='app-comm'></a> App Instance Communication
   
   The diagram below illustrates how app instances communicate in a deployment with Container-to-Container Networking enabled. 
   In this example, the operator creates two policies to regulate the flow of traffic between **App A**, **App B**, and **App C**. 
  
positive.code: If traffic and its direction is not explicitly allowed, it is denied. For example, **App B** cannot send traffic to **App C**.
  
  ![Post Container-to-Container Networking](./images/post-c2c.png)
  
  
  ### <a id='overlay-network'></a> Overlay Network
  
  
negative.code: The Container-to-Container Networking feature enables app instances to communicate with each other directly.
  <%= vars.cf_networking %>
  
  
  ## <a id="architecture"></a> Architecture
  
  ### <a id='overview'></a>Overview
  
  