A Delay-Tolerant Network Architecture for Challenged Internets

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A Delay-Tolerant Network Architecture for Challenged Internets (2003)

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by Kevin Fall

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928 - 12 self

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@TECHREPORT{Fall03adelay-tolerant,
    author = {Kevin Fall},
    title = {A Delay-Tolerant Network Architecture for Challenged Internets},
    institution = {},
    year = {2003}
}

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Abstract

The highly successful architecture and protocols of today’s Internet may operate poorly in environments characterized by very long delay paths and frequent network partitions. These problems are exacerbated by end nodes with limited power or memory resources. Often deployed in mobile and extreme environments lacking continuous connectivity, many such networks have their own specialized protocols, and do not utilize IP. To achieve interoperability between them, we propose a network architecture and application interface structured around optionally-reliable asynchronous message forwarding, with limited expectations of end-to-end connectivity and node resources. The architecture operates as an overlay above the transport layers of the networks it interconnects, and provides key services such as in-network data storage and retransmission, interoperable naming, authenticated forwarding and a coarse-grained class of service.

Keyphrases

challenged internet intel research delay-tolerant network architecture in-network data storage coarse-grained class continuous connectivity limited expectation network architecture interoperable naming limited power node resource successful architecture memory resource today internet transport layer optionally-reliable asynchronous message forwarding frequent network partition long delay path specialized protocol key service extreme environment many network end node application interface end-to-end connectivity

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