Advanced Peer-to-Peer Networking (APPN)

Definition of Advanced Peer-to-Peer Networking (APPN) in The Network Encyclopedia.

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What is Advanced Peer-to-Peer Networking (APPN)

A protocol developed by IBM as the second generation of Systems Network Architecture (SNA).

Advanced Peer-to-Peer Networking (APPN) is an extension of SNA that was developed

  • To enable SNA traffic to flow concurrently with other protocols
  • To provide prioritization of SNA traffic
  • To allow users to establish sessions without mainframe involvement

APPN provides a mechanism for peer-to-peer networking and session establishment between any two logical units (LUs) on an SNA network. APPN provides greater distributed network control than legacy SNA by isolating the effects of single-point failures. It supports the dynamic exchange of information about network topology to facilitate connection, reconfiguration, and route selection. APPN also supports the dynamic definition and automated registration of network resources.

APPN is an acronym that stand for Advanced Peer-to-Peer Networking.