direkt zum Inhalt springen

direkt zum Hauptnavigationsmenü

Sie sind hier

TU Berlin

Inhalt des Dokuments

Es gibt keine deutsche Übersetzung dieser Webseite.

Publications by Type: Journal and Magazine Articles

Efficient policies for carrying Web traffic over flow-switched networks
Zitatschlüssel FRC-EPCWTFN-98
Autor Feldmann, Anja and Rexford, Jennifer and Caceres, Ramon
Seiten 673–685
Jahr 1998
ISSN 1063-6692
DOI http://dx.doi.org/10.1109/90.748081
Adresse Piscataway, NJ, USA
Journal IEEE/ACM Trans. Netw.
Jahrgang 6
Nummer 6
Verlag IEEE Press
Zusammenfassung To efficiently transfer diverse traffic over high-speed links, modern integrated networks require more efficient packet-switching techniques that can capitalize on recent advances in switch hardware. Several promising approaches attempt to improve performance by creating dedicated ''shortcut'' connections for long-lived traffic flows, at the expense of the network overhead for establishing and maintaining these shortcuts. The network can balance these cost-performance tradeoffs through three tunable parameters: the granularity of flow end-point addresses, the timeout for grouping related packets into flows, and the trigger for migrating a long-lived flow to a shortcut connection. Drawing on a continuous one-week trace of Internet traffic, we evaluate the processor and switch overheads for transferring HTTP server traffic through a flow-switched network. In contrast to previous work, we focus on the full probability distributions of flow sizes and cost-performance metrics to highlight the subtle influence of the HTTP protocol and user behavior on the performance of flow switching. We find that moderate levels of aggregation and triggering yield significant reductions in overhead with a negligible reduction in performance. The traffic characterization results further suggest schemes for limiting shortcut overhead by temporarily delaying the creation of shortcuts during peak load, and by aggregating related packets that share a portion of their routes through the network.
Link zur Publikation Download Bibtex Eintrag

Zusatzinformationen / Extras

Direktzugang:

Schnellnavigation zur Seite über Nummerneingabe