PortLand: a scalable fault-tolerant layer 2 data center network fabric
This paper considers the requirements for a scalable, easily manageable, fault-tolerant, and efficient data center network fabric. Trends in multi-core processors, end-host virtualization, and commodities of scale are pointing to future single-site data centers with millions of virtual end points. E...
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Veröffentlicht in: | Computer communication review 2009-10, Vol.39 (4), p.39-50 |
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Hauptverfasser: | , , , , , , , |
Format: | Magazinearticle |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | This paper considers the requirements for a scalable, easily manageable, fault-tolerant, and efficient data center network fabric. Trends in multi-core processors, end-host virtualization, and commodities of scale are pointing to future single-site data centers with millions of virtual end points. Existing layer 2 and layer 3 network protocols face some combination of limitations in such a setting: lack of scalability, difficult management, inflexible communication, or limited support for virtual machine migration. To some extent, these limitations may be inherent for Ethernet/IP style protocols when trying to support arbitrary topologies. We observe that data center networks are often managed as a single logical network fabric with a known baseline topology and growth model. We leverage this observation in the design and implementation of PortLand, a scalable, fault tolerant layer 2 routing and forwarding protocol for data center environments. Through our implementation and evaluation, we show that PortLand holds promise for supporting a ``plug-and-play" large-scale, data center network. |
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ISSN: | 0146-4833 |
DOI: | 10.1145/1594977.1592575 |