S. E. Deering and D. R. Cheriton. Host groups: A multicast extension to the internet protocol (rfc 966). IETF Request For Comments, December 1985.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....simulation results indicate that our scheme improves the performance of application level multicast. Further we compare our scheme to the tunneling approach from the viewpoint of transmission performances. The results reveal applicable domains of both approaches. 1 Introduction IP multicast[1] is an e#cient way for multi point packet delivery at the network level. However, since its deployment imposes replacement of routers to multicastcapable ones, full deployment has been long in coming. Today s IP multicast is limited to islands of network domains under single administrative ....

S. Deering, D. R. Cheriton, "Host Groups: A Multicast Extension to the internet Protocol," RFC-966, December 1985.

....of SmartRadio. It also examines the technologies currently available so that an objective comparison can be made. 2.1 Multicast Streaming Multicast networking and applications in the TCP IP environment are not new. Proposals such as those made by Steve Deering and Dave Cheriton RFC 966[DC 1985] were made as far back as 1985. Even though the benefits of large scale real time or non real time streaming over IP multicast is clear, it was not until the creation of the Mbone in 1992 that activity and interest in multicast IP grew significantly. The Mbone provides a test bed for researchers ....

Deering S, Cheriton DR. Host Groups: A Multicast Extension to the Internet Protocol. RFC 966, Decemeber 1985.

....those applications are publish subscribe services, large scale groupware systems, video audio broadcasting, and teleteaching. For the sake of scalability and the efficient use of network resources those applications are to be based on a multicast communication service. The IP multicast protocol [1, 2] used in the Internet provides a best effort service. However, a wide range of the existing applications require reliable multicast. A number of reliable multicast protocols have been proposed in the literature [3, 4, 5, 6, 7, 8] Many of them are based on IP multicast. In order to achieve ....

....the delay the higher the throughput for a given buffer size respectively the lower the required buffer size for a given throughput. To construct ACK trees only variations of ERS have been proposed in the literature so far [9, 5] ACK tree construction with ERS, which is based on IP multicast [1, 2], is rather simple. When a node wants to join a group, it simply multicasts a join request to the members of this group. In order to decrease the network load and to find a close predecessor the multicast is limited in scope. The time to live field (TTL) in the IP header is set to one for the ....

Deering, S.; Cheriton, D.: Host Groups: A Multicast Extension to the Internet Protocol, RFC 966, 1985

....and so a large delay could exist between the generation of the first copy and the last. Much of the work in multicast over the last ten years has been concerned with the implementation of multicast for existing point to point protocols, for example IP for the Internet [Deering89, Waitzman88, Deering85] and JANET in the UK [Crowcroft92] The use of multicast in distributed computing protocols has also been slow to become established, partly due to the wide range of requirements by applications which might make use of it [Paliwoda88] It is only in more recent years that the problem of provision ....

....or some other such feedback occurs. 2. 11.2 Multicast for IP The provision of a multicast addressing scheme for the Internet TCP IP protocols is a relatively recent addition to IP and is summarised well by Comer [Comer91] It is described more fully by the relevant RFCs [Deering89, Deering85] and also in Deering s thesis [Deering91] A brief description of the scheme follows, as an example of a working implementation of multicast in a heterogeneous networking environment. Multicast groups are defined where a member of the group receives all the datagrams sent to the group. Any host ....

S Deering and D R Cheriton. Host Groups: A Multicast Extension to the Internet Protocol. Internet Network Working Group, RFC 966, December 1985. (pp 24, 25)

.... encrypting the content; the required decryption keys are given only to customers who have payed their subscription fees [MQ95] If the infrastructure is the Internet, then multicast can be implemented by multiple individual unicasts; or by using a newly created, dedicated, IP multicast group (cf. DC85] AFM92] whose members are only the paying customers; or by reverting to encryption, coupled with appropriate key management (cf. WGL98] WHA98] BMS99] All these methods of implementing multicast share the following property: Unless the group of subscribers is very small, broadcasting ....

S. E. Deering and D. T. Cheriton. Host groups: A multicast extension to the internet protocol, December 1985. Internet RFC 966, Stanford University.

....well shaped ACK trees, causing message delays that are comparable to ERS or even lower. 1 Introduction Efficient one to many communication is a prerequisite for many new applications, e.g. news and software distribution, distributed computing and computer supported cooperative work. IP multicast [DC85, Dee89] is already available in the Internet but only with best effort semantics. Several papers have addressed the issue of developing a scalable reliable multicast protocol. All solutions are based on the idea that the successful delivery is controlled by some kind of ACKmessage returned from the ....

Deering, S.; Cheriton, D.: Host Groups: A Multicast Extension to the Internet Protocol, RFC 966, 1985

....constructed within the network, on which multicast messages will be disseminated. Several proposals have been made for multicast routing tree construction in the Internet, including DVMRP[155] CBT[22] PIM[50] and GUM[148] It was not until the advent of the MBone[33, 63] that a multicast service[58] became widely available on the Internet. The current state of multicast can be described with respect to the Internet layering model[43] Network Layer: Current multicast routing proposals focus on generic routing tree construction protocols[53, 56] Specifications for the center based routing ....

Steven E. Deering and David R. Cheriton. Host groups: A multicast extension to the internet protocol. Technical Report RFC966, Stanford University, December 1985.

....1 Introduction Recently emerging interactive multi user applications have increased the need for advanced multicast services on the Internet. These services are implemented on top of the basic connectionless IP Multicast service, which does not guarantee reliable or in sequence delivery [7]. In the basic multicast service, a user joins a multicast group simply by indicating interest in receiving data sent to that group. Any packet that is transmitted to a multicast group is forwarded to all members of the group. Services that include error control, rate control, or in sequence ....

S. E. Deering and D. R. Cheriton. Host Groups: A Multicast Extension to the Internet Protocol. Technical Report RFC 966, Internet Engineering Task Force, December 1985.

....located at the professors and students sites, and to use the networks multicast options to have registered students remotely participate in university lectures. The Multicast Backbone (MBone) is an experimental network that is overlaid on the existing Internet to carry IP multicast datagrams [1, 2, 3, 4]. It originated from experiments during IETF meetings in which live audio and video were transmitted around the world. Application tools, such as vat (visual audio tool) nevot (network voice terminal) nv (network video) ivs (inria videoconferencing system) vic (video conferencing) and wb ....

S. Deering and D. Cheriton, "Host Groups: A Multicast Extension to the Internet Protocol." Request for Comments 966, December 1985.

....remotely participate in university lectures. In this paper, the terms distance education and teleteaching are used synonymously to refer to this general idea. The Multicast Backbone (MBone) is an experimental network that is overlaid on the existing Internet to carry IP multicast datagrams (Deering and Cheriton, 1985; Deering, 1989; Deering and Cheriton, 1990; Deering, 1991) Application tools, such as vat (visual audio tool) nevot (network voice terminal) nv (network video) ivs (inria videoconferencing system) vic (video conferencing) and wb (white board) can be used to hold multimedia conference ....

Deering, S. and Cheriton, D. (1985) Host Groups: A Multicast Extension to the Internet Protocol. RFC 966.

....as a generalization of the broadcast and unicast techniques. A datagram is unicast, if it is delivered from one source to one destination, and it is broadcast, if it is delivered to all hosts attached to a network. IP multicast is an extension of local area networking multicast to TCP IP networks [5, 4]. It provides support for the transmission of an IP datagram to a host group which is a set of hosts identified by a single class D IP destination address [6] A multicast datagram is delivered to all members of its destination host group with the same best efforts quality of service as regular ....

Deering, S., and Cheriton, D. Host Groups: A Multicast Extension to the Internet Protocol. Request for Comments 966, December 1985.

....member succeeds or fails independently of delivery to the others, and failures are not necessarily reported to the sender. Multicast communication of this sort is available at the interprocess communication level in the V system [10] experimentally at the IP datagram level in the DARPA Internet [8, 11, 12], and at the data link level in the Ethernet [14] 1 The next section describes the naming system design in some detail. Section 3 evaluates the system s performance, presenting an analytical model and validating the model by comparing it with measurements on the V implementation. Section 4 ....

S. E. Deering and D. R. Cheriton. Host groups: A multicast extension to the Internet Protocol. Technical Report RFC 966, Network Information Center, SRI International, December 1985.

....multicast service provided by connection oriented network protocols such as ST II [24] We are not aware of prior integration of this model into IPv4, however. Support for authenticated subscriptions was proposed as far back as 1985, in one of the earliest descriptions of IP multicast (RFC 966) [8]. This mechanism was eliminated later [6] although other proposals have revived this idea, most notably Ballardie s work (RFC 1949) 1, 2] RFC 1949 proposes a general security model encompassing joiner authentication, session key management, and per host access controls. EXPRESS provides the ....

Deering, S., and Cheriton, D. Host groups: A multicast extension to the internet protocol. In Internet Requests for Comments (RFC966). Dec 1985.

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S. E. Deering and D. R. Cheriton. Host groups: A multicast extension to the internet protocol (rfc 966). IETF Request For Comments, December 1985.

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S. E. Deering, D. R. Cheriton, Host Groups: A Multicast Extension to the Internet Protocol, , Internet Engineering Task Force -- RFC 966. Available in www.ietf.org 1985.

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S. E. Deering and D. R. Cheriton. Host groups: A multicast extension to the internet protocol (rfc 966). IETF Request For Comments, December 1985.

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Deering, S., and D. Cheriton, "Host Groups: A Multicast Extension to the Internet Protocol", RFC-966, Stanford University, December 1985.

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S. Deering and D. Cheriton, "Host Groups: A Multicast Extension to the Internet Protocol", RFC 966, December 1985.

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S. Deering, D. Cheriton, "Host Groups: A Multicast Extension to the Internet Protocol", RFC 966, December 1985.

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S.E. Deering and D.R. Cheriton. \Host Groups: A multicast extension to the Internet Protocol." Technical Report RFC-966. Stanford University, December, 1985.

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Deering, S. and Cheriton, D. Host groups: A multicast extension to the internet protocol. Stanford University, December 1985.

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