anchor.diff:  the service being setup for failover, it is possible to target the service to
   run on one or more, or even all, of the labeled nodes.
   ====
  -
  ++
   . Finally, configure the VIPs and failover for the nodes labeled with
   *ha-router=geo-us-west* in the first step. Ensure the number of replicas match
   the number of nodes and that they satisfy the label setup in the first step. The
  
positive.code: instance is "unreachable", perhaps due to a node failure, Keepalived ensures
  that the VIPs automatically float amongst the group of nodes labeled
  "ha-cache=geo" and the service is still reachable via the virtual IP addresses.
  
negative.code: ====
  endif::[]
  
  
  For details on how to dynamically update the virtual IP addresses for a
  highly available, see
  link:#dynamically-updating-vips-for-a-highly-available-service [dynamically updating the virtual IPs]
  
  === Configuring a Highly-available Network Service [[ip-failover]]
  
  The following steps describe how to set up a highly-available IP-based network
  