Basics 2 min read
Transmission impairments
Transmission Impairment in Data Communication In communication system, analog signals travel through transmission media, which tends to deteriorate the quality…
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Basics 3 min read
Network Architecture
Computer Network Architecture Computer Network Architecture is defined as the physical and logical design of the software, hardware, protocols, and…
Basics 5 min read
Classification of Computer network
Types of area networks – LAN, MAN and WAN The Network allows computers to connect and communicate with different computers via any medium. LAN,…
Basics 2 min read
Criteria for a Data Communication Network
The major criteria that a Data Communication Network must meet are: Performance Consistency Reliability Recovery Security 6a. Performance Performance is…
Basics 5 min read
Ethernet Learning Algorithm
Traditional Ethernet switches use datagram forwarding as described in 1.4 Datagram Forwarding; the trick is to build their forwarding tables…
Basics 2 min read
Ethernet Switches
Switches join separate physical Ethernets (or sometimes Ethernets and other kinds of networks). A switch has two or more Ethernet…
Basics 3 min read
Gigabit Ethernet
The problem of scaling Ethernet to handle collision detection gets harder as the transmission rate increases. If we were continue…
Basics 3 min read
100 Mbps (Fast) Ethernet
Classic Ethernet, at 10 Mbps, is quite slow by modern standards, and so by 1995 the IEEE had created standards…
Basics 2 min read
Analysis of Classic Ethernet
How much time does Ethernet “waste” on collisions? A paradoxical attribute of Ethernet is that raising the transmission-attempt rate on…
Basics 1 min read
CSMA persistence
A carrier-sense/multiple-access transmission strategy is said to be nonpersistent if, when the line is busy, the sender waits a randomly…