anchor.diff:  |ports |URI | |
   |A GET against this URI returns the list of ports.
   
  +|qosPolicies |URI | |
  +|A GET against this URI returns the list of QoS policies.
  +
   |routers |URI | |
   |A GET against this URI returns the list of routers.
   
  
positive.code:   "portGroupTemplate":"http://example.com/midonet-api/port_groups/{id}",
    "ports":"http://example.com/midonet-api/ports",
    "portTemplate":"http://example.com/midonet-api/ports/{id}",
    "routers":"http://example.com/midonet-api/routers",
    "routerTemplate":"http://example.com/midonet-api/routers/{id}",
    "routeTemplate":"http://example.com/midonet-api/routes/{id}",
  
negative.code: 
  |portTemplate |String | |
  |Template of the URI that represents the location of the port with the
  provided identifier.
  
  |qosPolicyTemplate |String | |
  |Template of the URI that represents the location of the QoS policy with the
  provided identifier.
  
  |routerTemplate |String | |
  