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Computer Communications and Networks, International Conference on (1998)
Lafayette, Lousiana
Oct. 12, 1998 to Oct. 15, 1998
ISSN: 1095-2055
ISBN: 0-8186-9014-3
pp: 4
Xiaoqiang Chen , Lucent Technologies
R. Venkateswaran , Lucent Technologies
Shizhao Li , New Jersey Institute of Technology
Nirwan Ansari , The Chinese University of Hong Kong
C.S. Raghavendra , Aerospace Organization
ABSTRACT
The routing and signaling protocols for supporting multipoint-to-multipoint connections in ATM networks have been presented earlier. VP-Merge and VC-Merge techniques have been proposed as the likely candidates for resolving the sender identification problem associated with these connections. The additional buffer requirements in the VC-Merge mechanism and the excessive use of VPI/VCI space in the VP-Merge mechanism have been the main reasons for concern about their effective utility. In this paper, we propose improvements to the traditional VC-Merge technique to minimize the need for additional buffers at intermediate merge points. Aptly named Dynamic Multiple VC-Merge (DMVC), Fixed Multiple VC-Merge (FMVC) and Selective Multiple VC-Merge (SMVC), these mechanisms define a generic scheme for merging the data from multiple senders onto one or more outgoing links. By appropriately choosing the number of connection identifiers per connection, these schemes lead to a large reduction in the buffer requirements and an effective utilization of the VPI/VCI space. Based on extensive simulations, we show that by using two connection identifiers per connection, there is an 80% reduction in buffer requirements for DMVC and FMVC when compared to the buffer required for traditional VC-Merge.
INDEX TERMS
multiway communications, VC-merge, VP-merge
CITATION
Xiaoqiang Chen, R. Venkateswaran, Shizhao Li, Nirwan Ansari, C.S. Raghavendra, "Improved VC-Merging for Multiway Communications in ATM Networks", Computer Communications and Networks, International Conference on, vol. 00, no. , pp. 4, 1998, doi:10.1109/ICCCN.1998.739891
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