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Transport Layer - Coggle Diagram
Transport Layer
protocols
UDP
unreliable, unordered
best effort
pkt can be lost
used for DNS
reliability moved to app layer
checksum (entire segment)
check integrity
multicast
TCP
connection oriented
everything at transport L
segment
source dest port
sequence num
in bytes sent
set random at start
ACK
next byte expecting
poin to point
reliable in order
discard
time out + re request
retrasmission timer
stored waiting
cumulative ACK
full duplex
MSS (max segment size)
connection oriented
messages to segments
pipelined
go back n
selective repeat
congestion control
avoid dropping packets
avoid problems in the network
multiplexing
demultiplexing
datagram
source port
dest port
connectionless
connection oriented
1 process host
2 process reciver
distinguish based on source port
2 different tasks
3 p server
well-known ports
0-1024
ICANN
client random
Data transfer
protocol like stops and wait