olemus
dubleeriv lisaühendus tõrkekindluse tõstmiseks

näiteid
https://www.ritelephone.com/wp-content/uploads/2017/03/redundant-internet-connection-2.png

https://image.slidesharecdn.com/bgpdualhome-140911132231-phpapp02/95/using-bgp-to-manage-dual-internet-connections-7-638.jpg

http://www.deltapsu.com/uploads_delta/editor_201706081496904806364599.jpg

http://www.cisco.com/c/en/us/td/docs/interfaces_modules/services_modules/csms/1-1-1/configuration/guide/redun.html