olemus
(a) võrgu loogiline jaotamine mitmeks alamvõrguks
(b) füüsilise võrgu jaotamine mitmeks väiksemaks
loogiliseks võrguks

Wiktionary: subnet, verb (transitive, networking):
to break (a network) into subnets

Interneti kontekstis: võrgu jaotamine IP-tasemel, aadressiplokkide tükeldamise teel
= in the context of the Internet: network partitioning at the IP level, by splitting up address blocks

ülevaateid
https://en.wikipedia.org/wiki/Subnetwork

http://vapenik.s.cnl.sk/pcsiete/CCNA1/08_Subnetting_IP_Networks.pdf

http://www.idc-online.com/technical_references/pdfs/data_communications/Subnetting.pdf

https://www.auvik.com/media/blog/subnetting-primer/

https://d12vzecr6ihe4p.cloudfront.net/media/966010/wp-subnetting-an-ip-address.pdf

https://www-sop.inria.fr/members/Vincenzo.Mancuso/ReteInternet/10_subnet.pdf

http://www.cisco.com/c/en/us/support/docs/ip/routing-information-protocol-rip/13788-3.html

https://nsrc.org/workshops/2009/summer/presentations/day3/subnetting.pdf

standardid
https://tools.ietf.org/html/rfc917
https://tools.ietf.org/html/rfc950

vt ka
- alamvõrgumask
- võrgu segmentimine