Preventing Out-of-Sequence for Multicast Input-Queued Space-Memory-Memory Clos-Network

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This paper proposes an out-of-sequence (OOS) preventative cell dispatching algorithm, the multicast flow-based round robin (MFRR), for multicast input-queued space-memory-memory (IQ-SMM) Clos-network architecture. Independently treating each incoming cell, such as the desynchronized static round robin (DSRR), can lead to cells of the same packet being disordered after traversing the switch fabric. Extra reassembly buffer and delay are thus required at the outputs of the switch fabric to reorder the cells. Simulation results obtained by OPNET Modeler show that the MFRR can eliminate such OOS problem by monitoring the changes of received fan-out vectors.
Original languageEnglish
Title of host publicationProceedings of OPNETWORK 2011
Publication date2011
Publication statusPublished - 2011
EventOPNETWORK 2011 - Washington DC, United States
Duration: 29 Aug 20111 Sep 2011


ConferenceOPNETWORK 2011
Country/TerritoryUnited States
CityWashington DC
Internet address


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  • OPNETWORK 2011

    Hao Yu (Participant)

    27 Aug 20112 Sep 2011

    Activity: Attending an eventParticipating in or organising workshops, courses, seminars etc.

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