User guide

2: Freeway Client-Server Protocol
DC 900-1303C 29
Expedite Data Packet to ICP
This packet is identical to the Data Packet to ICP, except it requests an expedited deliv-
ery to the ICP. This enables the client to send packets to the ICP that will be processed
by the ICP before other data packets queued normally using the Data Packet to ICP.
Data Packet From ICP
This packet contains data received by MsgMux from the ICP. The server reports the
client session ID and the Freeway session ID in the Freeway header. Depending on the
ICP protocol in use, the server may receive these packets from the ICP immediately fol-
lowing the successful processing of a client Open Session request packet.
Figure 2–3: Freeway Session Initiation, Data Transfer, and Termination
Open Session Response
Client Application
Freeway Server TSI
Open Session
Close Session
.
.
.
Data Packet From ICP
Data Packet To ICP
Close Session Response