An HUB is networking device and network hardware. It is used to connecting multiple computer or devices together. It has provides multiple input and output ports. It is also called Network Hub, Ethernet Hub, Active hub and Repeaters. It works on physical layer in OSI model. It connected devices share same amount of bandwidth and […]
OSI (Open System Interconnection) Reference Model
History of OSI Model:- In 1980’s beginning, when network started to be create. Every company had own’s operating system. Every company designed own network. Such as Microsoft designed own network and Macintosh designed own network. Every computers were communicate with own network, for example Macintosh’s computers were communicate own each other and Microsoft’s computers were […]
Layer 3 Switch
Layer 3 switch also known as multi layer switches and it works on Network Layer in OSI Model. These switches act as a router because it has making routing decision. It require advanced technology and they are expensive. Layer switches use in large LAN networks. These switches totally based on IP address and stored in […]