Question 1

How does a Switch work in a network?

Accepted Answer

The Switch connects multiple computers, such as printers and servers. It does this within a local area network, i.e., LAN. Thus, all the devices you connect will communicate with each other. Technically, it operates at the data link layer of the OSI model. It uses MAC addresses to locate devices and transmit data packets. In short, it acts like a traffic cop directing data where it needs to go.

Question 2

How does a Switch do its job?

Accepted Answer

For example, you have a device connected to a Switch. It reads the MAC address of this device. It then checks the routing table to determine the destination address. If it doesn't find anything in its table, it broadcasts to all devices connected to it. It then finds the physical ID of the target and saves it in its table. In this case, wherever your device wants to go, it uses the records in its table and forwards them to the destination.

Question 3

How does a Switch send data?

Accepted Answer

Switches transmit data packets based on the physical ethernet address, of course. If it receives a data packet, it searches for the ID, reads it, and saves it. If it has a record, it directs devices to the target. As a result, if it does not have a record, it sends data by broadcasting. In short, it acts like the police to devices by preventing congestion on the network.

Question 4

How do the Switches get on the Internet?

Accepted Answer

These appliances do not connect directly to the Internet. Instead, they connect to the router one by one. The router connects the LAN to the Internet. It then allows devices connected to it to access online resources.

Category: GNS3 Cisco Switch

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