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link to Matrix Switch

Matrix Switch

Matrix Switch was an electronic switch with multiple input and output ports that could be controlled from a keypad or some other front-panel switching facility. Matrix switches were used to allow...

link to Layer 4 Switch

Layer 4 Switch

Essentially, a Layer 4 Switch is a Layer 3 switch that is capable of examining layer 4 of each packet that it switches. In TCP/IP networking, this is equivalent to examining the Transmission Control...