DocumentCode :
3142210
Title :
A Minimum-Cost Resilient Tree-Based VPLS for Digital TV Broadcast Services
Author :
Raahemi, Bijan ; Bou-Diab, Bashar
Author_Institution :
Ottawa Univ., Ont.
fYear :
2006
fDate :
38838
Firstpage :
995
Lastpage :
998
Abstract :
This paper introduces an IPTV broadcast network architecture for digital multimedia distribution in a scalable, cost efficient, and reliable manner. The architecture presents a managed solution for broadcasting digital television, where its minimum-cost (Steiner) tree structure ensures significant bandwidth savings in the core, and its intelligent IGMP snooping aggregation and access nodes provide fast channel zapping, subscriber authorization, and channel profiling. We propose a system for providing resilient multimedia broadcasting services over the tree-based VPLS (TVPLS) network. In particular, we propose a solution that balances the IPTV traffic load over disjoint Steiner trees with split horizon and dual connectivity at the provide edge (PE) routers. A network management system (NMS) calculates disjoint minimum cost trees using the Steiner algorithm. Destination provider edge routers in the VPLS network are connected to the disjoint trees so that they can be serviced by either tree in the case of a fault. Each of the disjoint trees is provisioned with enough bandwidth to carry all of the services provided by the VPLS network. Under normal operation, however, the services are distributed evenly over the trees. In the event of a fault, the services on the faulty tree are switched to the other tree by the NMS using static Internet group management protocol (IGMP) route entries
Keywords :
computer network management; digital video broadcasting; local area networks; routing protocols; trees (mathematics); virtual private networks; IPTV broadcast network architecture; IPTV traffic load; Internet group management protocol; channel profiling; channel zapping; digital TV broadcast service; digital multimedia distribution; intelligent IGMP snooping aggregation; minimum-cost resilient tree-based VPLS; network management system; subscriber authorization; Bandwidth; Costs; Digital TV; Digital multimedia broadcasting; IPTV; Intelligent structures; Multimedia communication; Steiner trees; TV broadcasting; Tree data structures; Digital TV Broadcast; Minimum Cost Tree; Multicast; Resiliency; Split Horizon; Steiner Tree; VPLS (Virtual Private LAN service;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical and Computer Engineering, 2006. CCECE '06. Canadian Conference on
Conference_Location :
Ottawa, Ont.
Print_ISBN :
1-4244-0038-4
Electronic_ISBN :
1-4244-0038-4
Type :
conf
DOI :
10.1109/CCECE.2006.277636
Filename :
4054953
Link To Document :
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