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A switch is

a network device[] that select[s] a path or circuit for sending data to its next destination over the telephone network.[1]
[a] computer networking device that links network segments or network devices.[2]


"[S]witches in a network operate to automatically connect different devices together such as a computer with another computer or a computer to a printer."[3]

"Switches may also include functions of the router, a device also used in computer networks, that determines the route and adjacent network point for data to be sent."[4]

There are two major categories of switches: local and tandem. A third category of switch is called a remote switch.


  1. Digital Surveillance: The Communications Assistance for Law Enforcement Act, at 2 n.5.
  2. Tax Information Security Guidelines For Federal, State and Local Agencies, at 156.
  3. Centripetal Networks, Inc. v. Cisco Sys., Inc., 2020 WL 5887916, at *4 (E.D. Va. Oct. 5, 2020).
  4. Id.

See also[]