Presentation on theme: "AMHS Workshop Chennai, India December 15-16, 2008"— Presentation transcript:
1 AMHS Workshop Chennai, India December 15-16, 2008 AMHS ProtocolsTom McParlandBCI
2 AMHS Protocols X.400 Model X.400 Protocols X.400 Protocol List X.400 Messaging Network with Supporting Network InfrastructureX.400 and Network Infrastructure ProtocolsX.400 Protocol StacksX.400 over OSIX.400 over IPSAFTN NetworkAFTN ProtocolsX.400/AFTN NetworkAFTN Switch with AFTN/AMHS Gateway
4 X.400 ProtocolsP1 ProtocolThe P1 protocol handles the layout of a message sent from one Message Transfer Agent (MTA) to another Message Transfer Agent.Using the “letter and envelope” analogy, P1 is the ‘envelope’ while P2 is the ‘letter’ or the message to be sent.P2 ProtocolThe P2 protocol is the way in which the originator and the recipient know the format of the message is being transmitted.
5 X.400 ProtocolsP3 ProtocolThe P3 protocol is how the Message Transfer Agent (MTA) communicates with the User Agent (UA). A UA prepares a message and using P3 submits it to the MTA. P3 is used to deliver a message directly to the UA from the MTA.It is not necessary to implement P3 from a point of view of interoperability between X.400 Message Servers. This function could be implemented for example as a Web Browser.P7 ProtocolBecause the User Agent is not always available there is a Message Store (MS). The P7 Protocol is for communication between the UA and the MS. . P7 provides facilities to select messages selectively from the MS.It is likewise not necessary to implement P7 for interoperability. This function for example could be implemented using data base access techniques.