An example usage of the session layer is session beans, which are only active as long as the session is active, and are deleted when the session is disconnected.
12.
Each Net-Lib supported network protocol has a separate driver ( not to be confused with a device driver ), and has support for a session layer in its protocol stack.
13.
The functionality of the session layer can be found in protocols like HTTP and SMTP and is more evident in protocols like Telnet and the Session Initiation Protocol ( SIP ).
14.
Since the failover procedure is highly application-dependent, it is not part of RSerPool itself, though RSerPool provides far reaching support for the implementation of arbitrary failover schemes by its Session Layer mechanisms.
15.
Other examples of session layer implementations include Zone Information Protocol ( ZIP ) the AppleTalk protocol that coordinates the name binding process, and Session Control Protocol ( SCP ) the DECnet Phase IV session-layer protocol.
16.
The TCP / IP model does not consider the specifics of formatting and presenting data, and does not define additional layers between the application and transport layers as in the OSI model ( presentation and session layers ).
17.
KWP2000 can be implemented on CAN using just the service layer and session layer ( no header specifying length, source and target addresses is used and no checksum is used ); or using all layers ( header and checksum are encapsulated within a CAN frame ).
18.
In the case of transport protocols that do not implement a formal session layer ( e . g ., UDP ) or where sessions at the application layer are generally very short-lived ( e . g ., HTTP ), sessions are maintained by a higher level program using a method defined in the data being exchanged.
