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Performance analysis of PNNI routing in ATM networks: hierarchical reduced load approximation

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2 Author(s)
Hui Xie ; Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA ; J. S. Baras

We investigate the performance issue of PNNI (private network-to-network interface) routing for ATM networks. An introduction to PNNI routing protocol is given. We extend the reduced load approximation algorithm to ATM networks with PNNI routing. A hierarchical reduced load approximation scheme is proposed. The scheme includes two steps: the reduced load approximation algorithm is first applied on the aggregated network at the upper level; then the approximation is refined at the lower level as needed using the results from the upper level. This hierarchical scheme follows the PNNI routing framework and results a fast and scaleable algorithm

Published in:

MILCOM 97 Proceedings  (Volume:2 )

Date of Conference:

2-5 Nov 1997