In most offices, switches are of the Cut-through type(As soon as it receives the destination physical address, the switch starts transmitting the frame. -if you reduce latency, but it is more susceptible to errors), in specific applications or when the network administrator has a dedicated bandwidth of 500 mb/s or 1 gb/s it is recommended to use a store and forward switch, as in this if the network frames are copied to an internal memory before being transmitted, if any frame has an error it is discarded, which does not happen with the Cut-through switch.
But in which applications with dedicated bandwidth availability should we use the store and forward switch?
If you, as a network administrator, like to have live images in full HD all the time during the reception of live IPTV transmissions (legalized according to Anatel) and reception of live transmissions from Youtube for example, you can this being the solution to be applied, in our tests inside the laboratory of Nascimento Networks we were able to maintain the stability of the image quality not only of live transmissions from Youtube, but also from Globoplay(Streaming TV available in Brazil) (Live channels, Globo News, Futura and TV Globo local address ), however as the test was carried out for corporate entertainment, Nascimento Networks does not recommend this practice for gamers and home users since they do not have dedicated links between 500 mb/s and 1gb/s, the most common in these cases is in maximum a common link of 300 mb/s asymmetrical without guarantees of full speed by multimedia communication service providers.
What about outside corporate entertainment?
On a day-to-day basis, you can see an improvement in the speed delivered to workstations as long as it is a small office with a store and forward switch of up to 16 ports to accommodate 15 workstations to be connected to the server/firewall/router edge (cisco or mikrotik), remembering that the switch must be gigabit, apart from this exception, the network administrator must take into account the needs of each department of the organization, if it is medium-sized with more than 300 workstations , something of subdivision by department must be done, since as the frames are copied to an internal memory of the store and forward switch, putting the entire company network in a store and forward switch can congest the network, slowing down the communication, not even all departments of a company with more than 300 stations need switch's store and forward, and for most departments Cut-through switches work perfectly, but for design departments, remote conferences (respecting the dedicated bandwidth between 500 mb/ s and 1gb/s) may be the best option for receiving quality live broadcasts.
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