Quality of Service Multicasting over Differentiated Services Networks

Quality of Service Multicasting over Differentiated Services Networks

This paper proposes a solution to support real-time multicast trafic with Quality of Service (QoS) constraints over Differentiated Services (DiffServ) IP networks. Our solution allows multicast users to dynamically join and leave the multicast tree. Moreover, it allows a multicast user which has neg...

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Hauptverfasser: Bianchi, Giuseppe, Blefari-Melazzi, Nicola, Bonafede, Giuliano, Tintinelli, Emiliano
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Access methods and protocols, osi model
Admission Control
Applied sciences
Exact sciences and technology
Multicast Group
Multicast Packet
Multicast Tree
Service Multicasting
Telecommunications
Telecommunications and information theory
Teleprocessing networks. Isdn
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Beschreibung
Zusammenfassung:This paper proposes a solution to support real-time multicast trafic with Quality of Service (QoS) constraints over Differentiated Services (DiffServ) IP networks. Our solution allows multicast users to dynamically join and leave the multicast tree. Moreover, it allows a multicast user which has negotiated a best-effort session to upgrade to a QoS-enabled session. Our solution is backward compatible with the Protocol Independent Multicast (PIM) scheme. It combines two ideas. First, resource availability along a new QoS path is verified via a probe-based approach. Second, QoS is maintained by marking replicated packets with a special DSCP value, before forwarding them on the QoS path.
ISSN:0302-9743
1611-3349
DOI:10.1007/3-540-36480-3_54