Packet switched network

Encyclopedia : P : PA : PAC : Packet switched network

For a general discussion of packet switching, see Packet switching

A Packet Switched Network, or PSN, refers to the packet switched networks that were popular in the days before Internet. Often based on the X.25 protocol they allowed computers connected to the same network to communicate over large distances. A Data Network Identification Code, or DNIC, identified the particular network. A Private Data Network was a smaller, private network.

Contents

1 ConnNet
2 Datapac
3 Datex-P
4 Saponet
5 Venus-P
6 Janet/PSS
7 Tymnet
8 Telenet
9 Autonet
10 RCA
11 Austpac
12 Irepac
13 Luxpac
14 Transpac
15 Telepac
16 Isranet
17 See also
18 External links

ConnNet

Datapac

DATAPAC is a packet switched network in Canada.

Datex-P

Saponet

Venus-P

Janet/PSS

Tymnet

Tymnet was an international data communications network headquartered in San Jose, CA that utilized circuit switched technology and used X.25, SNA/SDLC, BSC interfaces to connect host computers (servers)at thousands of large companies, educational institutions, and government agencies. Users typically connected via dial-up connections or dedicated async connections. The business consisted of a large public network that supported dial-up users and a private network business that allowed governement agencies and large companies (mostly banks and airlines) to build their own dedicated networks. The private networks were often connected via gateways to the public network to reach locations not on the private network. Tymnet was also connected to dozens of other public networks in the U.S. and internationally via X.25/X.75 gateways.

Telenet

Autonet

RCA

Austpac

AUSTPAC is an Australian public X.25 network operated by Telstra. Started by the then-Telecom in the early 1980s, AUSTPAC was Australia's first public packet-switched data network, supporting applications such as on-line betting, financial applications — the Australian Tax Office has made use of AUSTPAC — and remote terminal access to academic institutions, who maintained their connections to AUSTPAC up until the mid-late 1990s in some cases. Access can be via a dial-up terminal to a PAD, or, by linking a permanent X.25 node to the network.

Irepac

Luxpac

Transpac

Telepac

Isranet

External links

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