We call systems which use proxies connected in an overlay Known as Application Layer Multicast (ALM) or End System Multicast Without any support from Internet routers.
The hosts in overlay multicastĮxclusively handle group management, routing, and tree construction, Overlay Multicast (OM): Hosts participating in a multicast sessionįorm an overlay network and utilize unicast connections among pairs The links shown in the figure represent predecessor/successor links.ĭepending on the overlay routing model, additional or different links Overlay peers, and peers are connected in a logical address space. Many peer-to-peer systems are overlay networks Overlay networks areįrequently used as a substrate for deploying new network services, orįor providing a routing topology not available from the underlying Routing, and messaging between end points. Which end points are addressable and that provides connectivity, Overlay network - An application layer virtual or logical network in , specifically the distinction between Node, We adopt the terminology defined in section 2 of "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in thisĭocument are to be interpreted as described in RFC 2119. The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", This document describes additional message types and a new ALMĪlgorithm plugin architectural component. A RELOAD Usageĭefines a set of data types and rules for their use. In which a new type of application defines a Usage. RELOAD has an application extension mechanism O Providing a basis for defining a separate hybrid-ALM RELOAD Usage O Support for a variety of ALM control algorithms O ALM implemented in RELOAD-based overlays Viable multicast technology where native multicast isn't available. O changing multicast tree structure depending on changes inĪpplication requirements, network conditions, and membershipĪpplication Layer Multicast (ALM) has been demonstrated to be a O use of different control mechanisms for different multicast treesĭepending on initial application parameters or application class O trees connect nodes over global internet
The concept of scalable adaptive multicast includes both scaling Internet-Draft ALM Extensions to RELOAD August 2012 1. Internet-Draft ALM Extensions to RELOAD August 2012 9.6. The Trust Legal Provisions and are provided without warranty asġ.
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Include Simplified BSD License text as described in Section 4.e of
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Code Components extracted from this document must Internet-Draft ALM Extensions to RELOAD August 2012 Please review these documentsĬarefully, as they describe your rights and restrictions with respect This document is subject to BCP 78 and the IETF Trust's Legal This Internet-Draft will expire on February 4, 2013.Ĭopyright (c) 2012 IETF Trust and the persons identified as the
Material or to cite them other than as "work in progress." It is inappropriate to use Internet-Drafts as reference Internet-Drafts are draft documents valid for a maximum of six monthsĪnd may be updated, replaced, or obsoleted by other documents at any Note that other groups may also distribute Internet-Drafts are working documents of the Internet Engineering
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This Internet-Draft is submitted in full conformance with the Scribe is defined as an example algorithm. Intended to support a variety of ALM control algorithms in an We define a RELOAD Usage for Application Layer Multicast as well asĮxtensions to RELOAD message layer to support ALM. Kolberg, Ed.Īpplication Layer Multicast Extensions to RELOAD draft-samrg-sam-baseline-protocol-01
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