6 events across 1 channel
GetReferral Request is received by the DFSN-ServerFilter from SRV.sys
GetReferral Request has been inserted into the Upcall queue and pending processing by the DFSN-ServerService
GetReferral Response is ready to be returned to SRV.sys by the DFSN-ServerFilter
ProcessUpcall is started by DFSN-ServerService and ready to post response to the request it just processed in DFSN-ServerFilter
ProcessUpcall has posted the response to the pending Upcall request in DFSN-ServerFilter
ProcessUpcall has dequeued an Upcall request and ready to return to DFSN-ServerService to process the request