intermediate node kesksõlm

intermediate node
kesksõlm

application layer
rakenduskiht

physical layer
füüsiline kiht

data-link layer
andmelülikiht

network layer
võrgukiht

transport layer
transpordikiht

session layer
seansikiht

presentaion layer
esitluskiht

layer encodes packets to
medium that carrys them
(like analog signal if messege
is going across telephone line).

supervising transmition

network layer selects root for data

protects data,
it subtivides data to segments

opens and keeps straigth communication
with all nodes on network

layer ensures that message is sended
in languege that resiving computer understands

layer application were user sees same
prosses, but moust prossesses are background
prosses to prepering to message to sending

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application layer
rakenduskiht

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Sending computer

receiving computer

calculates and verifies packages