olemus
ISO/IEC 2382:
üheainsa andmeüksuse edastus
lähte-teenusepääsupunktist
ühte või enamasse siht-teenusepääsupunkti
ühenduse loomiseta
=
the transmission of a single unit of data from a source service access point to one or more destination service access points without establishing a connection

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/Connectionless_communication

standard
https://tools.ietf.org/html/rfc787

protokollide näiteid
- ICMP
- IP
- IPX
- UDP