Terme informatique

Switch

Equipment that connects devices to a local network and transmits frames according to their addresses.

Networking

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Simple definition

One switch provides multiple network sockets and sends data to the right device rather than to all ports.

Technical definition

He learns the addresses(47) sources and builds an association table with his ports. VLAN, STP, aggregation of links, PoE and other functions.

What is it used for ?

Connect posts, servers, terminals Wi-Fi, phones and cameras from a site.

Practical example

One switch PoE transports data and powers terminals Wi-Fi with the same cable.

Common issues

Ring causing a diffusion storm
Port placed in the wrong VLAN
Food PoE insufficient
Link negotiated at too low speed

Address(TM) · VLAN · LAN · Router · Wi-Fi

Key takeaway: This entry explains the general operation of the term. Exact settings may vary depending on software, vendors and environments.

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