Lantech LES-2400-RPS, User Manual

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6
Ethernet Switching Technology
Ethernet Switching Technology dramatically boosted the total bandwidth of a network,
eliminated congestion problems inherent with CSMA/CD (Carrier Sense multiple
access with Collision Detection) protocol, and greatly reduced unnecessary
transmissions.
This revolutionized networking. First, by allowing two-way simultaneous transmissions
over the same port (Full-duplex) essentially doubled the bandwidth. Second, by
reducing the collision domain to a single switch-port eliminated the need for carrier
sensing. Third, by using the store-and-
forward technology‘s approach of inspecting
each packet to intercept corrupt or redundant data eliminated unnecessary
transmission that slow the network. By employing address learning replaced the
inefficient receiving port.
Auto-negotiation regulates the speed and duplex of each port, based on the capability
of both devices. Flow-control allows transmission from a 100Mbps node to a 10Mbps
node without loss of data. Auto-negotiation and flow-control may require disablement
for some networking operations involves legacy equipment. Disabling the
auto-negotiation is accomplished by fixing the speed or duplex of a port.
Ethernet Switching Technology supplied higher performance at costs lower than other
solutions. Wider bandwidth, no congestion, and the reduction in traffic is why switching
is replacing expensive routers and inefficient hubs as the ultimate networking solution.
Switching brought a whole new way of thinking to networking.