olemus
ISO/IEC 2382:
andmeüksuste edastus
lähte-teenusepääsupunktist
ühte või enamasse siht-teenusepääsupunkti
ühenduse abil, mis luuakse enne andmeedastust
ja lahutatakse pärast andmeedastust
=
the transmission of units of data from a source service access point to one or more destination service access points by means of a connection
NOTE. The connection is established prior to data transmission and released following data transmission

piltlikult
https://www.researchgate.net/profile/Anatol_Badach/publication/335207402/figure/fig1/AS:792538105528322@1565967217871/Connectionless-versus-connection-oriented-IP-packet-transmission-a-connectionless.png

ülevaateid
http://faculty.kfupm.edu.sa/ee/wajih/files/Lecture%2035%20(101).pdf

https://techdifferences.com/difference-between-connection-oriented-and-connection-less-services.html

https://en.wikipedia.org/wiki/Connection-oriented_communication

http://ptgmedia.pearsoncmg.com/images/0130424110/samplechapter/0130424110_ch18.pdf

standardid
https://www.ietf.org/rfc/rfc1270.txt
https://tools.ietf.org/html/rfc8122

protokollide näiteid
- FTP
- HTTP
- SMTP
- TCP
- Telnet