QoS restoration using a disjoint path group in ATM networks

Author

Lee, K.H. ; Choi, Y.H. ; Lee, J.Y. ; Lee, S.B.

Author_Institution

Dept. of Electron., Yonsei Univ., Seoul, South Korea

fYear

1999

fDate

1999

Firstpage

669

Lastpage

682

Abstract

A QoS restoration scheme for VP-based ATM networks is proposed and its related characteristics are evaluated. The proposed scheme is a state-independent restoration scheme using a disjoint path group. A VP assignment and capacity planning problem using a disjoint path group are formulated. When a failure occurs, failed working VP are switched to protection paths with the same QoS level using a simple and fast restoration algorithm. The simulated restoration characteristics of the proposed algorithm are presented. A scheme of excess capacity assignment to a protection path for dynamic traffic demands is also presented and analyzed

Keywords

asynchronous transfer mode; bandwidth allocation; fault tolerance; quality of service; telecommunication network management; telecommunication network reliability; telecommunication traffic; QoS restoration; VP assignment; VP-based ATM network; capacity planning; disjoint path group; dynamic traffic demands; excess capacity assignment; protection path; state-independent restoration scheme; Asynchronous transfer mode; Capacity planning; Intelligent networks; Protection switching; Quality of service; Telecommunication traffic; Telephony; Throughput; Traffic control; Wavelength division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Integrated Network Management, 1999. Distributed Management for the Networked Millennium. Proceedings of the Sixth IFIP/IEEE International Symposium on

Conference_Location

Boston, MA

Print_ISBN

0-7803-5748-5

Type

conf

DOI

10.1109/INM.1999.770715

Filename

770715