Network Topology - Linear Bus
Posted by: TheComputerMaster in Networking, tags: linear bus, network, Networking, topology
Linear Bus Topology
The Linear Bus Topology basically is a wire, with all the computers connected to it (as shown in the diagram). Terminators are required because without terminators the BUS will suffer major signal reflection and distortion.
General Information
Developed in 1976
Later IEEE defined the Ethernet standard
The first versions ran at 3 Mbps
The current versions run at 10 Mbps and 100 Mbps
This is a broadcast-based technology
It is inexpensive
Cables used: Thicknet (10Base5 / 100Base5) and Thinnet (10Base2 / 100Base2)
Problem: What happens if 2 devices transmit at the same time?
Each device monitors the line constantly so, a collision will be detected, so as soon as a collision is detected both devices will wait a random time and resend the packet. This process is repeated until a packet is sent successfully. Because of this, the network is not very efficient since there will be many collisions with an increase in workstations.
Problem Solution:
The network can be subdivided logically into smaller segments. and make use of local bridges/switches or routers on smaller segments.
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