Modern data centers increasingly rely on interconnects for delivering critical communications connectivity among numerous servers, memory, and computation resources. Us9184845b1 dynamic data center network with optical. Pdf datacenternetworkarchitecture incloudcomputing. Hamilton navendu jain srikanth kandula changhoon kim parantap lahiri david a. Introduction cloud services need data centers with hundreds of thousands of servers and that concurrently support a large number of distinct services. Todays data center network prevent agility in several ways. Vl2s design is driven by detailed measurements of traffic and fault data from a large operational cloud service provider. Understanding data center network architectures in.
A weighted ecmp load balancing scheme for data centers using. Abstract to be agile and cost effective, data centers should allow dynamic resource allocation across large server pools. A flexible and highperformance data center network topology. A scalable and flexible data center network perspectives. Aug 02, 2016 learn how you can get a truly flexible and scalable data center with the new cisco nexus 3100v switches. Computer networks, fall 2012 presented by naveen chekuri outline introduction problem solution approach design decisions initial data center traffic analysis addressing and routing evaluation observations introduction a data center is a centralized repository. In order to avoid manual configuration, many of them require centralized administrators which. Multipath loadbalancing algorithms, which can be used for data center networks dcns, are provided. In particular, the data center network should enable any server to be assigned to.
To be agile and cost effective, data centers must allow dynamic resource allocation across large server pools. Mar 17, 2011 reading the mostrecent issue of communications of the acm, i enjoyed the reprint of vl2. But it requires a flexible, highperformance data center infrastructure, and intelligent, highspeed connectivity. This repository releases the sourcecode and the simulator developed as part of elastic virtual network function placement evnfp1 published in 4th ieee conference on cloud networking. Osa optical multicast system for data center networks. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Improving datacenter performance and robustness with multipath tcp. A quick summary of the vl2 datacenter network scheme tom. Recent advances in optical technologies for data centers. Vl2 proceedings of the acm sigcomm 2009 conference on data. Albert greenberg microsoft research, navendu jain microsoft research, srikanth kandula microsoft research, changhoon kim princeton, parantap. A data center network dcn is an important component of data centers that consists of a large number of hosted servers and switches connected with high speed communication links. Tomeet these goals, we presentvl2, a practical network architecture that scales to support huge data centers with uniform high capacity between servers, performance isolation between services, and ethernet layer2 semantics.
Center network work with albert greenberg, james r. Prior to aws, james was architect on the microsoft data center futures team and before that he was architect on the live platform services team. A quick summary of the vl2 datacenter network scheme. Data intensive computing is characterized by problems where data is the primary challenger, whether it is the complexity, size, or rate of the data acquisition. A scalable and flexible data center network microsoft. To address these challenges, the authors present softcell, a scalable. Common concerns with vlb, such as the extra latencyand the consumption of extra network capacity caused by path stretch, are overcome by a combination of our environment propagation delay is very small inside a data center. A scalable and flexible data center network sigcomm. A full lifecycle of it services quickens both innovation and timetomarket. A multipath loadbalancing algorithm can be, for example, a distributed multipath loadbalancing algorithm or a centralized multipath loadbalancing algorithm. Deployment and maintenance of current data center networks is costly and prone to errors. Cisco nexus 3000 series switches recently added the 3100v in the family. Data center network topologies raj jain washington university in saint louis saint louis, mo 63.
At the top of the rack, place a switch the topofrack tor switch to connect the servers together. Means for communicating with other servers, regardless of where they are in the data center. A weighted ecmp load balancing scheme for data centers. An applicationdriven control plane manages the integrated optical and electronic switched traffic. In this paper, we propose a novel switchcentric network topology, called dccube, which offers many desirable properties for data center networking. Dccube is a flexible structure because, given the switches degree and the network diameter, it is possible to construct different structures with different number of connected servers, bisection. Scalable, faulttolerant layer 2 data center network fabric. Vl2 s implementation leverages proven network technologies, already available at low cost in highspeed hardware implementations, to build a scalable and reliable network architecture. To be agile and cost effective, data centers should allow dynamic resource allocation across large server pools. Vl2 virtual layer 2 hakim weatherspoon assistant professor, dept of computer science. Scalable and elastic telecommunication services in the cloud. Jun 23, 2011 in recent years, data center network dcn architectures e. However, in some sense, figure 2understates the dif. Author links open overlay panel bin wang a zhengwei.
Sep 01, 2012 scalable and elastic telecommunication services in the cloud scalable and elastic telecommunication services in the cloud mullender, sape j wood, thomas l. Delivering additional it rooms, air optimizers and power management rooms can incrementally increase the size and capacity of the facility. Us9503378b2 loadbalancing algorithms for data center. This paper describes and evaluates ga3 generalized automatic address assignment, a discovery. This cited by count includes citations to the following articles in scholar. Reading the mostrecent issue of communications of the acm, i enjoyed the reprint of vl2. A survey on data center networking for cloud computing. Third, we analyze the differences between data center load balancing mechanisms and traditional internet traffic scheduling. By far the biggest infrastructure cost in a highscale service is the servers.
Networking devices are shared resources connecting important it infrastructures, especially in a data center network they are always operated 247 which consume a huge amount of. Cellular core networks suffer from in flexible and expensive equipment, as well as from complex controlplane protocols. The ones marked may be different from the article in the profile. Second, the definition of the loadbalancing problem is described. In particular, the data center network should enable any server to be assigned to any service. A dcn enables the deployment of resources centralization and ondemand access of the information and services of data centers. We present the design and experimental evaluation of an optical multicast system for data center networks, a hardwaresoftware system architecture that uniquely integrates passive optical splitters in a hybrid network architecture for faster and simpler delivery of multicast traffic flows. There are many reasons why we need innovation in data center networks but lets look at a couple i find particularly interesting and look at the solution we offered in a recent sigcomm paper vl2. Vl2 proceedings of the acm sigcomm 2009 conference on. Maltz parveen patel sudipta sengupta microsoft research abstract to be agile and cost e.
A scalable, commodity data center network architecture. A scalable and flexible data center network albert greenberg james r. In this paper we design a novel flexible data center network. Tomeet these goals, we presentvl2, a practical network architecture that scales to support huge data centers. Legrand is a leader in network infrastructure solutions, with products designed to support data center, commercial buildings or audiovideo applications, connectivity products that meet.
The system and method includes optical ports on an optical circuit switch system operably connected to a plurality of server groups, and optical ports on the optical circuit switch system operably connected to a plurality of packet processing nodes. Abstract wepresent past,anovel network architecture for data center ethernet networks. Ragingwire data centers colocation services enable your enterprise to meet strategic business objectives by accelerating time to market, improving operating efficiency, and avoiding costly downtime all while addressing both your current and future mission critical it demands. Slides used and adapted judiciously from cos 561, advanced computer networks. To meet these goals, we present vl2, a practical network architecture that scales to support huge data centers with uniform high capacity. Hamilton, navendu jain, srikanth kandula, parantap lahiri, david a. A scalable and flexible data center network microsoft research presented by.
As a result, vl2 networks can be deployed today, and we have built a working prototype. Recently, energy efficiency or green it has become a hot issue for many it infrastructures as they attempt to utilize energyefficient strategies in their enterprise it systems in order to minimize operational costs. Deployment of a hybrid multicast switch in energyaware data. Flexible, scalable and global data center colocation. In order to avoid manual configuration, many of them require centralized administrators which constitute a clear bottleneck, while distributed approaches do not guarantee sufficient flexibility or robustness. Prior to that he was general manager of the microsoft exchange hosted services team which was formed as part of the frontbridge technologies acquisition.
Dynamic distributed flow scheduling with load balancing for. Hamilton navendu jain srikanth kandula changhoon kim parantap lahiri. A highperformance, servercentric data center network. Maltz, parveen patel, and sudipta sengupta microso research changhoon kim tenets of cloud. Equalcost multipath ecmp routing, the most common loadbalancing scheme used on data center networks, tries to balance the traffic without awareness of the network congestion. Congestionaware load balancing in clos data center networks. In 2008, 10 gige switches are on the verge of becoming commodity parts. Vl2s implementation leverages proven network technologies, already available at low cost in highspeed hardware implementations, to build a scalable and reliable network architecture. Scalable network control for cloud data centers kai zheng, lin wangy, baohua yang, yi suny, yue zhang, steve uhligz ibm research yinstitute of computing technology, chinese academy of sciences. Bladeroom scalable data centers comprise a series of standardized it rooms with scalable air optimizers and power management rooms. Theophilus benson, ashok anand, aditya akell, and ming zhang, a. To meet these goals, 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 layer2 semantics. We evaluate the merits of the vl2 design using measurement, analysis.
A scalable and flexible data center network, sigcomm 2009. To meet these goals, we present vl2, a practical network architecture that scales to support huge data centers. A system and method of providing a dynamic optical network topology according to topology determinations made by a network control is disclosed. A scalable, flexible, and highbandwidth data center network ye yu and chen qian department of computer science, university of kentucky ye. Equalcost multipath ecmp routing, the most common loadbalancing scheme used on data center networks, tries to balance the traffic without awareness of the network. Abstract wepresent past,anovel network architecture for data center ethernet networks that implements a peraddress spanning tree routing algorithm. High performance network architectures for data intensive. However routing on a random topology suffers from control and data plane scalability problems, because routing decisions require global information and forwarding state cannot be aggregated.
Building a flexible and scalable data center with cisco nexus. Common concerns with vlb, such as the extra latencyand the consumption of extra network capacity caused by path stretch, are overcome by a combination of our environment propagation delay is very small inside a data center and our topology which. Data center interconnects turned to optical communications almost a decade ago, and the recent acceleration in data center. Computer networks, fall 2012 presented by naveen chekuri outline introduction problem solution approach design decisions initial data center traffic analysis addressing and routing evaluation observations introduction a data center. The rapid growth of data center traffic requires data center networks dcns to be scalable. Nowadays, data center networks face ongoing challenges for higher performance and greater efficiency. In particular, the data center network should provide a simple flat abstraction. Data center network topologies washington university in. Mar 15, 2018 first, recently proposed data center network topologies and the studies of traffic characteristics are introduced.