Building shared trees using a one-to-many joining mechanism

Author:

Carlberg Ken1,Crowcroft Jon1

Affiliation:

1. Department of Computer Science, University College London, London WC 1 6BT, United Kingdom

Abstract

This paper presents a new approach for building shared trees which have the capability of providing multiple routes from the joining node onto an existing tree. The approach follows a design parameter of CBT and PIM in that it operates independently of any unicast routing protocol. However, a paradigm shift is introduced such that trees are built in an on-demand basis through the use of a one-to-many joining mechanism. In addition, the paper presents optimisations of the new mechanism to help constrain its impact in the case where many receivers exist for a given multicast group.

Publisher

Association for Computing Machinery (ACM)

Subject

Computer Networks and Communications,Software

Reference15 articles.

1. {1} Deering D. Estrin D. Farinacci M. Handley A. Helmy "Protocol Independent Multicast - Sparse Mode (PIM-SM)" Internet Draft -- Work in Progress July 1996. {1} Deering D. Estrin D. Farinacci M. Handley A. Helmy "Protocol Independent Multicast - Sparse Mode (PIM-SM)" Internet Draft -- Work in Progress July 1996.

2. {2} Ballardie "Core Based Trees (CBT) Multicast Architecture" Internet Draft -- Work in Progress February 1996. {2} Ballardie "Core Based Trees (CBT) Multicast Architecture" Internet Draft -- Work in Progress February 1996.

3. {3} Moy "OSPF Version 2" RFC 1584 March 1994. {3} Moy "OSPF Version 2" RFC 1584 March 1994.

4. {4} Crawley. Presentation at Montreal IETF June 1996. {4} Crawley. Presentation at Montreal IETF June 1996.

5. {5} Castineyra J. Chiapa M. Steenstrup "The Nimrod Routing Architecture" Internet Draft - Work in Progress February 1996. {5} Castineyra J. Chiapa M. Steenstrup "The Nimrod Routing Architecture" Internet Draft - Work in Progress February 1996.

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