Title :
Hybrid self-healing mechanism with VP priority and dynamic bandwidth assignment policy in ATM networks
Author :
Ko, Nam-Seok ; Kwak, Dong-Yong ; Kwon, Yo ; Park, Hong-Shik
Author_Institution :
Sch. of Eng., ICU, Taejon, South Korea
Abstract :
It is reasonable to restore the VP failures according to the VP priority level in respect of guaranteeing the QoS which is coupled with the VP priority. This paper proposes a new hybrid self-healing mechanism based on the VP priorities over the ATM networks. Backup VPs are assigned to restore the failures on the restoration domains such as the OAM segment or end-to-end VPC. Semi-dynamic VP restoration algorithms are used for the VPs which do not have backup VPs or whose backup VPs fail. The simulation results show that the proposed algorithm can restore higher priority VPs faster than the lower priority VPs
Keywords :
B-ISDN; asynchronous transfer mode; bandwidth allocation; maintenance engineering; quality of service; telecommunication network management; telecommunication network reliability; ATM based B-ISDN; ATM networks; OAM fault management; QoS guarantee; VP failure restoration; VP priority; backup VP; dynamic bandwidth assignment policy; end-to-end VPC; hybrid self-healing mechanism; semi-dynamic VP restoration algorithms; simulation results; B-ISDN; Bandwidth; Broadcasting; Databases; Heuristic algorithms; ISDN; Intelligent networks; Maintenance; Propagation losses;
Conference_Titel :
TENCON 99. Proceedings of the IEEE Region 10 Conference
Conference_Location :
Cheju Island
Print_ISBN :
0-7803-5739-6
DOI :
10.1109/TENCON.1999.818542
