PNNI Internetworking Architecture over ATM Public Networks

Mitsuaki KAKEMIZU  Kazunori MURATA  Masaaki WAKAMOTO  

IEICE TRANSACTIONS on Communications   Vol.E83-B    No.2    pp.307-312
Publication Date: 2000/02/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (IEICE/IEEE Joint Special Issue on Recent Progress in ATM Technologies)
Category: Traffic Control and Network Management
PNNI,  BISUP,  routing,  signaling,  ATM,  

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An increase in high quality of service (QoS) applications such as video conferencing and distribution, and the evolution of the Internet have popularized ATM-LAN use based on the private network node interface (PNNI). Also in public networks, which serve as backbone networks for LANs, ATM technology is being introduced for high-speed and broadband communication. These situations lead to a great demand for economically and seamlessly interconnecting remote ATM-LANs via ATM public networks, which are based on broadband ISDN user part (BISUP). This paper discusses a method of peer group configuration method for such internetworking architecture that can avoid an overload of the PNNI routing processing in each peer group. The paper also proposes a method for seamless interconnection of remote ATM-LANs. In this method, complete PNNI signaling and routing is executed between a local switch (LS) in a public network and each ATM-LAN. It also can reduce the PNNI routing processing load on each public network by emulating PNNI routing and signaling between LSs.