Differences

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--- pdu [2019/01/11 01:46] – created k2patel
+++ pdu [2020/08/10 02:35] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
-== Level 5 Headline ==
+====== PDU (Protocol Data Unit) ======
-PDU names for each OSI layers are as follow.
-- Application -> Data
+==== OSI Layers and Name ====
-- Presentation -> Data
+PDU names for each OSI layers are as follow.
-- Session -> Data
-- Transport -> Segment or datagram
-- Network-> Packet
-- Data Link -> Frame
+Layer 1 - Physical -> Bits\\
+Layer 2 - Data Link -> Frame\\
+Layer 3 - Network-> Packet\\
+Layer 4 - Transport -> Segment or datagram\\
+Layer 5 - Session -> Data\\
+Layer 6 - Presentation -> Data\\
+Layer 7 - Application -> Data\\
-- Physical -> Bits
+==== Explanation ====
 Since layer 7, 6 and 5 are represent actual data including following basic elements which are component, collaboration, interface, function, interaction, process, event, service and objects. In short it defines how application should talk to another application, defines encryption and decryption of data from application layer, including the data types. Lastly layer 5 controls the connection between computer, in general starting-stopping and managing the connection between applications. If anybody has worked with apache httpd, keep alive variable in configuration closely control this behavior.