Title :
A predictive alternate path routing scheme supporting the best QOS in ATM networks
Author_Institution :
Dept. of Comput. Educ., Silla Univ., China
Abstract :
In routing protocols currently being specified for use in ATM networks, connection setup messages will be forwarded using source routing based upon multi-level hierarchy of addressing, and using alternate routing based upon progressive control against call blocking. But the existing progressive control do not guarantee the optimal QOS in the data transfer phase since selecting an alternate path can not be optimal. We show that, if the source node submits information about optimal paths in the connection setup message, even intermediate nodes can choose an optimal path from the entire network point of view. For this purpose, we propose a new method that finds out n-1 crankback destination nodes when there are n alternate paths to each destination. We also prove that the new method presented offers better performance than the existing one
Keywords :
asynchronous transfer mode; prediction theory; telecommunication congestion control; telecommunication network routing; transport protocols; ATM networks; QOS; call blocking; connection setup message; connection setup messages; data transfer; destination nodes; multi-level addressing hierarchy; optimal paths; performance; predictive alternate path routing; progressive control; routing protocols; source node; source routing; Circuits; Computer networks; Computer science education; Delay effects; Intelligent networks; Optimal control; Propagation delay; Routing protocols; Telecommunication traffic; Throughput;
Conference_Titel :
Communication Technology Proceedings, 1998. ICCT '98. 1998 International Conference on
Conference_Location :
Beijing
Print_ISBN :
7-80090-827-5
DOI :
10.1109/ICCT.1998.741052
