We examine an approach for providing reliable, scalable multicast communication, involving the use of multiple multicast groups for reducing receiver processing costs in a multicast session. In this approach a single multicast group is used for the original transmission of packets

Multicast group communication is a useful augmentation to CORBA both for fault-tolerant and highly available appli-cations and for groupware and cooperative work applica-tions. However, different multicast group communication protocols are appropriate in different environments, e.g., local area vs

Multicastgroup communication is a useful augmentation to CORBA both for fault-tolerant and highly available applications and for groupware and cooperative work applications. However, different multicast group communication protocols are appropriate in different environments, e.g., local area vs

Abstract — Many IP multicast based applications, such as Pay-TV, Multiplayer games, require controlling the group memberships of senders and receivers. One common solution is to encrypt the data with a session key shared with all authorized senders/receivers. To efficiently update the session key

delivery trees with desirable properties. We present extensive simulations of both our protocol and the Narada application-layer multicast protocol over Internet-like topologies. Our results show that for groups of size 32 or more, our protocol has lower link stress (by about 25%), improved or similar

. In reliable multicast communications, transmission rate of a sender should be restricted to the node capability of the lowest node in order to support reliable transmission of packets to all receivers in a multicast group. Even a node of high capability should receive packets at lower rate

with a layered transmission system. By selectively forwarding subsets of layers at constrained network links, each user receives the best quality signal that the network can deliver. We and others have proposed that selective-forwarding be carried out using multiple IP-Multicast groups where each

information must remain consistent as it is updated in the presence of faults. Since many messages may be required, recovery from faults may introduce delays, making real-time performance objectives difficult to achieve. Ordered multicast group communication systems are a useful infrastructure on which

Existing multicast routing mechanisms were intended for use within regions where a group is widely represented or bandwidth is universally plentiful. When group members, and senders to those group members, are distributed sparsely across a wide area, these schemes are not efficient; data packets

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