Distributed Core Multicast (DCM): a multicast routing protocol for many groups with few receivers

Ljubica Blazevic, Jean-Yves Le Boudec
1999
Article

Résumé

We present a multicast routing protocol called Distributed Core Multicast (DCM). It is intended for use within a large single Internet domain network with a very large number of multicast groups with a small number of receivers. Such a case occurs, for example, when multicast addresses are allocated to mobile hosts, as a mechanism to manage Internet host mobility or in large distributed simulations. For such cases, existing dense or sparse mode multicast routing algorithms do not scale well with the number of multicast groups. DCM is based on an extension of the centre-based tree approach. It uses several core routers, called Distributed Core Routers (DCRs) and a special control protocol among them. DCM aims: (1) avoiding multicast group state information in backbone routers, (2) avoiding triangular routing across expensive backbone links, (3) scaling well with the number of multicast groups. We evaluate the performance of DCM and compare it to an existing sparse mode routing protocol when there is a large number of small multicast groups. We also analyse the behaviour of DCM when the number of receivers per group is not a small number.

Official source

https://infoscience.epfl.ch/record/209?ln=fr

À propos de ce résultat

Cette page est générée automatiquement et peut contenir des informations qui ne sont pas correctes, complètes, à jour ou pertinentes par rapport à votre recherche. Il en va de même pour toutes les autres pages de ce site. Veillez à vérifier les informations auprès des sources officielles de l'EPFL.

Concepts associés

Chargement

Publications associées

Chargement

Distributed Core Multicast (DCM): a routing protocol for IP with application to host mobility

Ljubica Blazevic, Jean-Yves Le Boudec

We consider the problem of multicast routing in a large single domain network with a very large number of multicast groups with small number of receivers. Such a case occurs, for example, when multicast addresses are statically allocated to mobile hosts, as a mechanism to manage Internet host mobility. For such networks, existing dense or sparse mode multicast routing algorithms do not scale well with the number of multicast groups. We propose an alternative solution called Distributed Core Multicast (DCM). It is based on an extension of the centre-based tree approach. It uses several core routers, called Distribut ed Core Routers (DCRs) and a special protocol between them. The objectives are: (1) to avoid multicast group state information in backbone routers, (2) to avoid triangular routing across expensive backbone links, (3) to scale well with the number of multicast groups. We describe how our approach can be used to support mobile hosts. We argue that, when DCM is used to route packets to mobile hosts, good performance can be achieved during handoff.

1999

Chargement

We present a multicast routing protocol called Distributed Core Multicast (DCM). It is intended for use within a large single Internet domain network with a very large number of multicast groups with a small number of receivers. Such a case occurs, for example, when multicast addresses are allocated to mobile hosts, as a mechanism to manage Internet host mobility. For such networks, existing dense or sparse mode multicast routing algorithms do not scale well with the number of multicast groups. DCM is based on an extension of the centre-based tree approach. It uses several core routers, called Distributed Core Routers (DCRs) and a special control protocol among them. DCM aims: (1) to avoid multicast group state information in backbone routers, (2) to avoid triangular routing across expensive backbone links, (3) to scale well with the number of multicast groups. We analyse how DCM can be used to route packets to mobile hosts in the Internet, where each mobile host is assigned a multicast address in every domain it visits. The benefits of multicasting-based approach to route packets to mobile hosts are low latency and no disruption during handover.

1999

Chargement

We consider the problem of multicast routing in a large single domain network with a very large number of multicast groups with small number of receivers. Such a case occurs, for example, when multicast addresses are statically allocated to mobile hosts, as a mechanism to manage Internet host mobility. For such networks, existing dense or sparse mode multicast routing algorithms do not scale well with the number of multicast groups. We introduce an alternative solution called Distributed Core Multicast (DCM). DCM is based on an extension of the centre-based tree approach. It uses several core routers, called Distributed Core Routers (DCRs) and a special control protocol among them. The objectives are: (1) to avoid multicast group state information in backbone routers, (2) to avoid triangular routing across expensive backbone links, (3) to scale well with the number of multicast groups. We describe how our approach can be used to support mobile hosts. We argue that, when DCM is used to route packets to mobile hosts, good performance can be achieved during handoffs.

1999

Chargement