2022年9月
Layer 2/Layer 3/Layer 1-7 devices
Layer 2 devices (bridge switches) A hub (HUB) unconditionally copies and forwards received traffic to all por […]
Network equipment by hierarchy / Layer 1 equipment
Network equipment by hierarchy Various devices exist on the network. Not all devices on the network unde […]
OSI reference model and TCP/IP model
OSI reference model and TCP/IP model The 7-layer model of the OSI reference model is specified by the Interna […]
OSI reference model (data flow)
OSI reference model (data flow) Each communication layer communicates peer-to-peer with the same layer using l […]
OSI reference model
OSI reference model In order to exchange data between computers, various protocols are required, ranging from […]
What is a protocol
What is a protocol If you look up the meaning of protocol in Kojien, Draft Convention, Protocol diplomatic pro […]
network at your fingertips
network at your fingertips Nowadays, constant broadband connections such as FTTH are commonplace, but compute […]