Networking, from first principles to the rack.
Learn switching, routing, MPLS, multicast, optical transport and operator-grade gear (Nokia SR OS, Cisco IOS, Westermo WeOS, Ciena DWDM) with interactive lessons, animated diagrams, and quizzes — in English or Swedish. Free, self-hosted, and built for CCNA and Nokia NRS-I.
Five tracks. One path.
Physical & Foundations
Cabling, fiber, connectors, ODF, DWDM with Ciena Site Manager and NCS.
L2 Switching
Hubs to switches, VLANs, STP, wireless basics.
L3 Routing & IP
Subnetting drills, OSPF, BGP introduction, IPv6.
Services, MPLS & Operator-Grade
MPLS LSPs, multicast, QoS, security, EPipe/VPLS/VPRN.
Hardware deep-dives
Nokia 7705 SAR-8 v2, 7750 SR-a8, Cisco ASR, IE4000, Westermo DDW225, CLIP modems, Ciena.