However, it is important to note that the 100BaseTX constrains the collision domain
distance between two repeaters to 5 meters, and between the repeaters and terminal devices to 100 meters.
The collision domain
was too large and the broadcast ratio was too high.
At the time of the original network analysis, the city had a flat network with one collision domain
3u/D3) defines maximal diameters for a collision domain
(equal to the maximal allowed half-duplex network span) in meters:
Tentatively referred to as EdgeCAR, this added function permits higher scalability in the network by allowing groups of eight ports to share a collision domain
, instead of every available port sharing that domain.
A LAN switch interconnects any number of LAN segments that would otherwise share the same collision domain
and (in the case of Ethernet) occupy a single 10 Mb/s pipe.
By linking two stacks it is possible to have 144 ports in one collision domain
; however, having that many users in one collision domain
may not be wise tactically.
The hub's stackable design, employing Asante's unique expansion card technology, allows companies to easily scale up the network as needed to as many as 14 hubs in a single stack and a maximum capacity of 334 connections in a single collision domain
Unlike conventional hub products, which share one collision domain
among eight ports, the NC-100 dedicates a 10Mbps segment to every desktop with full wire speed switching.
Two new features have been added to CSMA/CD to enable efficient operation over a practical collision domain
diameter at 1000 Mb/s.
The FastHub 300 Series' Class II design allows customers to scale a solution up to 254 ports within a single collision domain
by directly cascading two stacks together and to distribute and connect hubs in separate wiring closets - without requiring a bridge, router or switch.
Each segment becomes an independent 10Mbps collision domain
shared by fewer users and network devices.