Difference between revisions of "Circuit-switching"

From Computer History Wiki
Jump to: navigation, search
(An OK start)
 
m (+cat)
 
(One intermediate revision by the same user not shown)
Line 7: Line 7:
 
This is fundamentally different from a [[reliable byte stream]] in a [[packet switch|packet-switching network]], where the switches ([[router]]s) have no idea about the byte streams which may be passing through them.
 
This is fundamentally different from a [[reliable byte stream]] in a [[packet switch|packet-switching network]], where the switches ([[router]]s) have no idea about the byte streams which may be passing through them.
  
{{stub}}
+
{{semi-stub}}
 +
 
 +
[[Category: Networking Basics‎]]

Latest revision as of 21:53, 13 December 2018

Circuit-switching was the approach used in the first generations of communication networks; they create a 'circuit' from one party to the other, with each switch along the path knowing about each circuit passing through them.

In the early circuit-switched networks, such as the early telephone network, the 'circuits' were actual analog physical circuits (hence the name).

Later on, networks used for data tranmission used so-called 'virtual circuits'; in these networks, the switches that formed them knew about the virtual circuits passing through them.

This is fundamentally different from a reliable byte stream in a packet-switching network, where the switches (routers) have no idea about the byte streams which may be passing through them.