Event routing
In addition to the message fields themselves, each event has two special fields which are used for message routing:
transportName indicates which transport the event has originated from (incoming events) or intended for (outgoing events).
SESSION indicates which session the event has originated from (incoming events) or intended for (outgoing events). For a client transport, this field will always be blank as there is only one session. For a server transport this field indicates the originating or intended client.
