Performance analysis of SDN-specific error recovery procedures
Identifieur interne : 001098 ( Istex/Checkpoint ); précédent : 001097; suivant : 001099Performance analysis of SDN-specific error recovery procedures
Auteurs : Dieter Baum [Allemagne] ; Luciano Lenzini [Italie]Source :
- Computer Communications [ 0140-3664 ] ; 1995.
Abstract
This paper evaluates and compares the performance of two error recovery schemes being applied to the European Space Data Network (SDN). The SDN comprises several heterogeneous subnetwork technologies providing end-to-end connectivity between ground and spacecraft application processes. Previous work1–3 considers the interconnection protocol architecture, for which two approaches have been proposed; these are distinguished by the type of network service used to perform subnetwork interconnection: connection-oriented and connectionless. In the former approach, error recovery from message loss or corruption is performed by each individual subnetwork along the path (step-by-step); in the latter approach, error recovery is provided on an end-to-end basis. To compare performance characteristics of the two architectures, two models are analysed, taking into account the effects of physical link errors, propagation delays of messages and their acknowledgements, finite buffer capacities on gateways, buffering of unacknowledged messages, timeout mechanisms, computation time on gateways and end systems, and fragmentation and reassembly. Numerical results show that, for the SDN environment considered, the step-by-step approach is superior to the end-to-end approach. The techniques applied are standard ones, considering a very complex scenario of different network characteristics.
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DOI: 10.1016/0140-3664(95)93447-C
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The SDN comprises several heterogeneous subnetwork technologies providing end-to-end connectivity between ground and spacecraft application processes. Previous work1–3 considers the interconnection protocol architecture, for which two approaches have been proposed; these are distinguished by the type of network service used to perform subnetwork interconnection: connection-oriented and connectionless. In the former approach, error recovery from message loss or corruption is performed by each individual subnetwork along the path (step-by-step); in the latter approach, error recovery is provided on an end-to-end basis. To compare performance characteristics of the two architectures, two models are analysed, taking into account the effects of physical link errors, propagation delays of messages and their acknowledgements, finite buffer capacities on gateways, buffering of unacknowledged messages, timeout mechanisms, computation time on gateways and end systems, and fragmentation and reassembly. Numerical results show that, for the SDN environment considered, the step-by-step approach is superior to the end-to-end approach. The techniques applied are standard ones, considering a very complex scenario of different network characteristics.</div></front></TEI><affiliations><list><country><li>Allemagne</li><li>Italie</li></country><region><li>Toscane</li></region><settlement><li>Pise</li></settlement><orgName><li>Université de Pise</li></orgName></list><tree><country name="Allemagne"><noRegion><name sortKey="Baum, Dieter" sort="Baum, Dieter" uniqKey="Baum D" first="Dieter" last="Baum">Dieter Baum</name></noRegion><name sortKey="Baum, Dieter" sort="Baum, Dieter" uniqKey="Baum D" first="Dieter" last="Baum">Dieter Baum</name></country><country name="Italie"><region name="Toscane"><name sortKey="Lenzini, Luciano" sort="Lenzini, Luciano" uniqKey="Lenzini L" first="Luciano" last="Lenzini">Luciano Lenzini</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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