Several layered multicast protocols have been proposed for congestion control in real-time multicast applications. Most of them are pure end-to-end protocols, thus having difficulty in coordinating receivers and coping with traffic variations. In this paper, we propose RALM, a new receiver-driven router-assisted layered multicast protocol. RALM achieves much better performance at the expense of...

0163-6804/97/$10.00 © 1998 IEEE ulticast transport protocols have been a topic of intense research and development efforts over the past couple of years. Both the Internet Engineering and Internet Research Task Forces (IETF and IRTF) have been heavily involved in coordinating multicast transport protocol research, development, standardization, deployment, and technology transfer activities. Thi...

The exponential growth of the Multicast Backbone (MBone) has resulted in increased routing overhead and processing costs. In this paper we propose a two-level hierarchical routing model as a solution to this problem. This approach involves partitioning the MBone into non-overlapping regions using DVMRP as the inter-region routing protocol; intra-region routing may be accomplished by any of a nu...

PIM-SM is the routing protocol which describes the exchange of the network topology information in order to construct logical multicast trees. Multicast traffic is routed along these multicast trees in order to more efficiently utilize the network resources. In this paper, we evaluate capabilities of the open-source implementations which allow routing of multicast traffic: Quagga, and Pimd.

Growing demand for use of Internet/Web-based services in large scale real-time distributed virtual simulation (RT-DVS) and other real-time applications is fueling extensive interest in overlay multicast protocols. These applications require many-to-many multicast services that are not available as an open Internet service today and are not likely to be offered as an Internet-wide service in the...

many appealing multicast services such as on-demand tv, teleconference, online games and etc. can benefit from high available bandwidth in multi-radio multi-channel wireless mesh networks. when multiple simultaneous transmissions use a similar channel to transmit data packets, network performance degrades to a large extant. designing a good multicast tree to route data packets could enhance the...

There is a challenge for optimised Quality of Service (QoS) support of multicast services in mobile IPv6 infrastructures based on heterogeneous wireless networks. Efficient technologies are required able to support: Seamless handover and “Optimal” decisions for selection of access networks for mobile services, according application and network QoS criteria. To ensure seamless operation of multi...

This document describes the messages and procedures of the Negativeacknowledgment (NACK) Oriented Reliable Multicast (NORM) protocol. This protocol is designed to provide end-to-end reliable transport of bulk data objects or streams over generic IP multicast routing and forwarding services. NORM uses a selective, negative acknowledgment mechanism for transport reliability and offers additional ...

This paper presents a performance study, using both analytical modeling and simulation techniques, of a new end-to-end reliable multicast protocol for use in environments with wireless access. The proposed protocol, known as the reliable mobile multicast protocol (RM2), divides a multicast tree into sub-trees where subcasting is applied within these relatively smaller regions using a hierarchic...