Journal ArticleDOI
VL2: a scalable and flexible data center network
Albert Greenberg,James R. Hamilton,Navendu Jain,Srikanth Kandula,Changhoon Kim,Parantap Lahiri,David A. Maltz,Parveen Patel,Sudipta Sengupta +8 more
TLDR
VL2 is a practical network architecture that scales to support huge data centers with uniform high capacity between servers, performance isolation between services, and Ethernet layer-2 semantics and can be deployed today, and a working prototype is built.Abstract:
To be agile and cost effective, data centers must allow dynamic resource allocation across large server pools. In particular, the data center network should provide a simple flat abstraction: it should be able to take any set of servers anywhere in the data center and give them the illusion that they are plugged into a physically separate, noninterfering Ethernet switch with as many ports as the service needs. To meet this goal, we present VL2, a practical network architecture that scales to support huge data centers with uniform high capacity between servers, performance isolation between services, and Ethernet layer-2 semantics. VL2 uses (1) flat addressing to allow service instances to be placed anywhere in the network, (2) Valiant Load Balancing to spread traffic uniformly across network paths, and (3) end system--based address resolution to scale to large server pools without introducing complexity to the network control plane. VL2's design is driven by detailed measurements of traffic and fault data from a large operational cloud service provider. VL2's implementation leverages proven network technologies, already available at low cost in high-speed hardware implementations, to build a scalable and reliable network architecture. As a result, VL2 networks can be deployed today, and we have built a working prototype. We evaluate the merits of the VL2 design using measurement, analysis, and experiments. Our VL2 prototype shuffles 2.7 TB of data among 75 servers in 395 s---sustaining a rate that is 94% of the maximum possible.read more
Citations
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Journal ArticleDOI
Enabling Quasi-Static Reconfigurable Networks With Robust Topology Engineering
TL;DR: CouDER as discussed by the authors is a robust topology and routing optimization framework for reconfigurable optical circuit switched data centers, which is based on a convex set of traffic matrices.
Patent
Selective enabling of sequencing for encapsulated network traffic
TL;DR: In this article, the source instance and destination instance may be implemented by different physical hosts linked by multiple network paths, and each encapsulated packet comprises contents of a corresponding packet, and one or more data values selected in accordance with whether sequencing is enable.
Proceedings ArticleDOI
EthSpeeder: A High-performance Scalable Fault-Tolerant Ethernet Network Architecture for Data Center
TL;DR: Eth Speeder, a high performance fault-tolerant and scalable layer 2 Ethernet network architecture, is proposed as a possible solution for large-scale data center environments and designed and implemented using FPGA technology.
CoSwitch: A Cooperative Switching Design for Software Defined Data Center Networking
TL;DR: CoSwitch is presented, a novel switching design for DCN that mitigates the bottlenecks of OpenFlow and leverages virtual switch on the server to cooperate with physical switch, which has high-speed data plane.
Proceedings ArticleDOI
Selective randomized load balancing outperforms VPN-tree routing for disparate demand and link granularities
TL;DR: It is found that selective randomized load balancing and Valiant's fully-randomized load balancing can be lower-cost routing templates than VPN-tree routing for hose-constrained random network traffic, provided that link bandwidths have a significantly coarser granularity than individual demands, as is typically the case in today's optical networks.
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