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Networks standards and protocols - Coggle Diagram
Networks standards and protocols
ISO
International Standard Organization
164 countries
promote and create standards
OSI
Open System Interconnection
1984
model
send/receive data
PDU
level information
add :arrow_down:
tail
header
remove :arrow_up:
Protocol Data Unit
protocol stack
layers
:three:
NETWORK
network address
packet
route selection
:two:
DATA LINK
connect :one: & :two:
:check:checksum
machine address
frame
:six:
PRESENTATION
:books:compression
:closed_lock_with_key:encryption
format
:four:
TRANSPORT
connection establishment
:check:checksum
segment
:one:
PHYSICAL
frames :arrow_right: signals
signals :arrow_right: frames
medium access
:seven:
APPLICATION
user :left_right_arrow: :computer:
:five:
SESSION
open/close session
communication
full duplex
half duplex