Virtual Circuits

A virtual circuit is a logical connection established between two devices over a network, allowing them to communicate as if they were directly connected, even if the physical path changes. It works like a dedicated pipe: data is sent in a specific sequence, ensuring reliable and orderly transmission. This setup is common in packet-switched networks, like the internet, where multiple users share the same physical infrastructure. Virtual circuits improve efficiency and manage data flow, but they're established and maintained through signaling before data transfer begins, providing predictable and stable communication within the network.