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Public Switched Telephone NetworkPublic Switched Telephone NetworkPublic Switched Telephone NetworkPublic Switched Telephone Network
The first circuit-switched network was the telephone system.
Scalable
in 1967
Is a piece of circuit - switched network equipment used in telecommunications network.
The Internet is packet switched, meaning each individual packet is routed from the source to the destination separately, and possibly through different paths. An example of a circuit-switched network would be the telephone network, where a connection from one end to the other is created and maintained until the call is disconnected.
* Ability to handle growing amount of work * Capability of a system to increase total throughput under an increased load when resources are added * A scalable system is that whose performance improves after adding hardware, proportionally to the capacity added * A routing protocol is considered scalable with respect to network size, if the size of the necessary routing table on each node grows as O(log N), where N is the number of nodes in the network.
software
Is a piece of circuit - switched network equipment used in telecommunications network.
The most commonly implemented network services are Dynamic Host Configuration Protocol (DHCP), Domain Name Service (DNS), and Network Address Translation (NAT). These network services are implemented on nearly every network that connects to the Internet.