anchor.diff:  </tr>
   <tr>
   	<td>istio-router</td>
  -	<td></td>
  -	<td></td>
  +	<td>envoy</td>
  +	<td>A reverse proxy to forward HTTP/HTTPS requests external to the platform to applications on the platform.</td>
   </tr>
   <tr>
   	<td>istio-control</td>
  -	<td></td>
  -	<td></td>
  +	<td>copilot, pilot-discovery</td>
  +	<td>Propagates <% vars.product_short %> external routes to all service mesh routers.</td>
   </tr>
   <tr>
  +	<td>route-syncer</td>
   	<td>cc-route-syncer</td>
  -	<td></td>
  -	<td></td>
  +	<td>Syncs routes created through the Cloud Controller API to the service mesh control plane.</td>
   </tr>
   </table>
   
  -To see the communication ports and protocols used by these components, see...
  +For information about the communication ports and protocols used by these components, see [Service Mesh](../security/networking/routing-network-paths.html) in the _Routing Network Communications_ topic. 
   
   ## <a id="features"></a> Features
   
  
positive.code: 
  Consider the following when deploying service mesh:
  
  * It does not have feature parity with the existing routing plane in CF. 
  * It currently only supports ingress routing to apps. 
  * It is for deployments with fewer than 20,000 routes. At greater scale, it impacts core platform functions. 
  
  ## <a id="deploy"></a> How to Deploy
  
  To deploy service mesh, see...
negative.code: owner: CF Networking Service Mesh
  ---
  
  This topic describes service mesh for <% vars.product_full %>. 
  
  ## <a id="overview"></a> Overview 
  
  <% vars.product_short %> includes an optional, beta routing plane that uses a service mesh. A service mesh provides traffic management, security and observability for microservices. For more information, see [What is a service mesh?](https://istio.io/docs/concepts/what-is-istio/#what-is-a-service-mesh) in the Istio documentation. Service Mesh in 
  
  <% vars.product_short %> uses [Istio Pilot](https://istio.io/docs/concepts/what-is-istio/#pilot) and [Envoy](https://www.envoyproxy.io/). The Cloud Foundry [istio-release](https://github.com/cloudfoundry/istio-release) packages these components into a BOSH release. 
  
  ## <a id="components"></a> Component VMs
  
  Service mesh deploys an additional router and runs as a parallel routing plane as illustrated in the following diagram:
  
  ![Istio plane](istio-plane.png)
  
  The following table describes each VM deployed as part of service mesh in <% vars.product_short %>, along with their function.
  
  <table>
  <tr>
  