olemus
Cisco: mitme füüsilise liidese agregaat, mis loob loogilise liidese
= an aggregation of multiple physical interfaces that creates a logical interface

ülevaateid
https://ourtechplanet.com/common-types-of-port-channels/

https://networkengineering.stackexchange.com/questions/54628/what-is-the-difference-between-port-channel-and-etherchannel

https://en.wikipedia.org/wiki/EtherChannel

https://www.packetmischief.ca/2012/07/20/4-types-of-port-channels-and-when-theyre-used/

http://www.dslreports.com/faq/16369

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/configuration/guide/cli/CLIConfigurationGuide/EtherChannel.pdf