14 Message Sequence
>>>消息序列
14.1 Connecting to Receiving Data from Vendor Data Engine
>>>連接到VDE接收數據
14.1.1 Successful Connection to VDE
>>>成功連接到VDE
VSS makes a connection to the real-time data port, 9129. It then sends Logon message to VDE.
VDE then sends a confirming Logon message to VSS if it has accepted the connection. VDE sends a
Logout message to VSS if it does not accept the connection.
>>>VSS連接到VDE的實時數據端口9129.然後發送LOGON消息給VDE。
>>>如果VDE接愛了連接，就回發一個確認LOGON消息給VSS.
>>>如果VDE不接受連接，就回發一個LOGOUT消息給VSS.
14.1.2 Rejected Connection from VDE
>>>被拒絕連接到VDE
14.1.3 Connection Reset by VDE
>>>連接重置
Anytime if VDE needs to disconnect VSS, it sends a Logout message to VSS and then disconnects
the TCP connection.
>>>任何時候如果VDE需要斷開連接，它首先會發送一個LOGOUT消息給VSS，然後再斷開TCP連接。
14.2 Rebuilding Data From Vendor Data Engine
>>>從VDE重建數據
VSS makes a connection to the rebuild data port, 9130. It then sends Logon message to VDE. VDE
then sends a confirming Logon message to VSS if it has accepted the connection. VDE sends a
Logout message to VSS if it does not accept the connection.
If the connection is accepted, VDE sends a confirming logon message to the VSS. Upon receiving
the logon confirmation message, VSS should send the rebuild data request to VDE. VDE will request
the rebuild data message from rebuild server and send back data returned to VSS.
When data has been completely sent to VSS, VDE will send a Logout message to VSS and then
disconnect the TCP/IP connection immediately.
>>>VSS連接到VDE的重建數據端口9130.然後發送LOGON消息給VDE。
>>>如果VDE接愛了連接，就回發一個確認LOGON消息給VSS.
>>>如果VDE不接受連接，就回發一個LOGOUT消息給VSS.
>>>VSS接收到確認LOGON消息後，就可以發送重建數據的請求給VDE了，VDE將向重建數據服務器請求數據並且返回給VSS.
>>>當數據全部發回給VSS之後，VDE將發送LOGOUT消息給VSS並且立刻斷開TCP連接。
(本章完)
