Workspace Web Edition & Web Services supports any third-party load balancer that supports sticky sessions. Session affinity (sticky sessions) should be configured based on JSESSIONID.
Your load balancer must support web sockets if they are used as the transport for unsolicited notifications in CometD. For details about CometD, see http://cometd.org/.
If you use Workspace Web Edition and your load balancer supports web sockets, make sure to enable this feature in Workspace Web Edition by setting the system.notif.enabled-websocket option to true.