By using destination stripping and shortest-path routing, the new standard IEEE 802.17 resilient packet ring (RPR) allows for spatial reuse, resulting in a significantly increased capacity compared to source-stripping legacy ring networks. We show that for multicast traffic the performance of RPR reduces to that of legacy ring networks that do not support spatial reuse. We propose a bandwidth-e...

Multicast potentially optimises bandwidth consumption and node resources, when several users simultaneously participate in a communication session. Nevertheless, contrary to the expectations, IP multicast has not experienced widespread deployment, with the exception of IPTV. On the other hand, emerging Wireless Sensor Network (WSN) applications could greatly benefit from multicast and constitut...

Overlay multicast protocol constructs a virtual mesh spanning all member nodes of a multicast group and employs standard unicast routing to fulfill multicast functionality on application layer. The advantages of this approach are simplicity and flexibility. However, efficiency and stability are the issues that must be addressed as the size of the multicast group grows in the mobile ad hoc netwo...

Multicast can be done on link layer, IP layer, and application layer respectively. The application level overlay multicast is easier to deploy as compared to non overlay multicast but at the cost of efficiency. However, the utilization of these approaches is limited by current Internet architecture. Overlay and non overlay integrated solution have not yet been proposed for hybrid networks. In t...

High bandwidth and low latency switches are commercially available. Using these switches, it has become a popular and cost-eeective way to interconnect workstations and processor clusters together as a parallel computing platform. The interconnection topology is usually irregular. On such systems, multicast is an important collective operation. Two steps are involved in a multicast: (1) the sou...

The research and industrial communities have recently been striving to make the Internet capable of supporting multicast traffic sources. A multicast tree for a given multicast source is a tree rooted at the source and all its leaves being members in the multicast group. Tree cost is measured by the utilization of tree links. The problem to be solved is to find a minimum cost multicast tree. Th...

In this paper we describe a debugging tool that is an eeective means of analyzing problems with multicast packet routing in a network. Multicast packet routing is a source-driven distributed calculation performed by the routers in a multicast network. The routes taken by multicast packets are diicult to predict manually due to the large number of variables that must be considered. The multicast...

Overlay multicast can effectively use the Internet as a lower level infrastructure to provide services to members. Overlay multicast is proposed as an alternative approach for providing multicast services in the Internet. In the overlay multicast protocols, each multicast member is responsible for forwarding the multicast packets. Thus, network failure can occur by leaving or joining of nodes. ...

IP multicast catches Chinese researchers’ eyes recently as the deployment of non-tunnel multicast routing protocols throughout the CERNET mature. But characteristics of multicast traffic still need to be understood. Using our developed passive monitoring system, we observe multicast traffic on links connecting peer networks to our native multicast backbone network. First of all, we analyze of c...

Although IP multicast has been rapidly evolving in the last few years, the current Internet is not fully multicast-enabled because of the lack of robust inter-domain routing and controlling protocols. In this paper, we present an alternative architecture for data distribution on Internet called PSRM that realizes semantic reliable, loose synchronized, multicast data delivery. PSRM is not based ...