anchor.diff:  <%= vars.pcf_networking_is1 %>
   <% end %>
   
  -<% if vars.product_name == 'CF' %>
  -##<a name='config-instance-group'></a> Step 4: Configure Additional Routers
  -<% else %>
   ##<a name='config-instance-group'></a> Step 3: Configure Additional Routers
  -<% end %>
  -
   
   <% if vars.product_name == 'CF' %>
   You must edit the BOSH deployment manifest to include an instance group for each set of routers.
  
positive.code: ## <a name='sharding-routers-isolation-segment'></a> Sharding Routers for Isolation Segments
  
  To provide security guarantees in addition to the firewall rules described above, an operator can configure sharding of Gorouter's routing table, resulting in a router dedicated for an isolation segment having knowledge only of routes for applications in the same isolation segment. The flexibility of the configuration also supports deployment of a router that is responsible for multiple isolation segments, or that excludes all isolation segments.
  
  Configuration is achieved using two manifest properties, `routing_table_sharding_mode` and `isolation_segments`.
  
  
negative.code: <%= vars.pcf_networking_is3 %>
  <% end %>
  
  ## <a name='config-dns-lb'></a>Step 5: Configure DNS and Load Balancers
  
  Create a separate domain name for each router instance group, and configure DNS to resolve these domain names to a load balancer that routes requests to the matching routers. 
  
  