Long round-trip time support with shared-memory crosspoint buffered packet switch

Ziqian Dong, Roberto Rojas-Cessa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations

Abstract

The amount of memory in buffered crossbars in combined input-crosspoint buffered switches is proportional to the number of crosspoints, or O(N 2), where N is the number of ports, and to the crosspoint buffer size, which is defined by the distance between the line cards and the buffered crossbar, to achieve 100% throughput under port-rate data flows. A long distance between these two components can make a buffered crossbar costly to implement. In this paper, we propose and examine two shared-memory crosspoint buffered packet switches that use small crosspoint buffers to support a long round-trip time, which is mainly affected by the transmission delay caused by the distance between line cards and the buffered crossbar. The proposed switch reduces the required buffer memory of the buffered crossbar by 50% or more. We show that a shared-memory crosspoint buffer switch can provide high this improvement without speedup.

Original languageEnglish (US)
Title of host publicationProceedings - 13th Symposium on High Performance Interconnects, Hot Interconnects 13
Pages138-143
Number of pages6
DOIs
StatePublished - 2005
Event13th Symposium on High Performance Interconnects, Hot Interconnects 13 - Stanford, CA, United States
Duration: Aug 17 2005Aug 19 2005

Publication series

NameProceedings - Symposium on the High Performance Interconnects, Hot Interconnects
Volume2005
ISSN (Print)1550-4794

Other

Other13th Symposium on High Performance Interconnects, Hot Interconnects 13
CountryUnited States
CityStanford, CA
Period8/17/058/19/05

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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