Vl2 a scalable and flexible data center network pdf

Traffic pattern characteristics in data centers vl2. Aggregation layer forwards servertoserver traffic in the data center not ideal for eastwest traffic network is the bottleneck. We evaluate the merits of the vl2 design using measurement, analysis. A quick summary of the vl2 datacenter network scheme tom. A scalable and flexible data center network sigcomm 2009 4 f10. Computer networks, fall 2012 presented by naveen chekuri outline introduction problem solution approach design decisions initial data. A scalable and flexible data center network an excellent p resentation both motivating and discussing vl2. Vl2s implementation leverages proven network technologies, already available at lowcost in highspeed hardware implementations, to build a scalable and reliable network architecture. Networking the cloud, albert greenberg, icdcs 2009 keynote talk 6. Vl2 is a scalable data center architecture to provide uniform high capacity between servers, performance isolation between services, ethernet layer 2 semantics in large data centers, and dynamic resource allocation across large server pools aka agility. One is datacenters network topology, we use vl2 as reference. Maltz, parveen patel, and sudipta sengupta microsoft. Tomeetthesegoals,wepresentvl2,apracticalnetworkarchitecture that scales to support huge data centers with uniform high capacity between servers, performance isolation between services, andethernetlayer. Introduction to cloud data center and network issues.

A decade of clos topologies and centralized control in. In particular, the data center network should enable any server to be assigned to. Maltz parveen patel sudipta sengupta microsoft research abstract to be agile and cost e. Networking the cloud in my view, we are on the cusp of big changes. Tomeetthesegoals,wepresentvl2,apracticalnetworkarchitecture that scales to support huge data. Vl2 s implementation leverages proven network technologies, already available at low cost in highspeed hardware implementations, to build a scalable and reliable network architecture.

Reference mohammad alfares, alexander loukissas, amin vahdat, a scalable, commodity data center network architecture, acm sigcomm 2008 albert greenberg, james r. A scalable and flexible data center network microsoft. A dcn enables the deployment of resources centralization and ondemand access of the information and services of data centers to users. In recent years, the scale of the dcn has constantly increased with the. Pdf to be agile and cost effective, data centers should allow dynamic resource allocation across large server pools. Hamilton navendu jain srikanth kandula changhoon kim parantap lahiri david a. Greenberg a, hamilton jr, jain n, kandula s, kim c, lahiri p, maltz da, patel p, sengupta s 2009 vl2. In order to avoid manual configuration, many of them require centralized administrators which. A highradix, lowlatency optical switch for data centers dan alistarh, hitesh ballani, paolo costa microsoft research adam funnell, joshua benjamin, philip watts, benn thomsen university college. A scalable faulttolerant layer 2 data center network fabric. To meet these goals, we present vl2, a practical network architecture that scales to support huge data centers with uniform high capacity. Vl2 is a scalable data center architecture to provide uniform high capacity between servers, performance isolation between services, ethernet layer 2 semantics in large data centers, and. Scalable, faulttolerant layer 2 data center network fabric. Datacenter new challenges to networking ethernet, and seattle.

Virtual machines should be able to migrate to any physical machine while maintaining their ip addresses and reachability. Abstract to be agile and cost effective, data centers should allow dynamic resource allocation across large server pools. Vl2s design is driven by detailed measurements of traffic and fault data from a large operational cloud service provider. Aggregation layer forwards servertoserver traffic in the data center not ideal for east. On2k 36, fail to yield a gradually scalable performance. Its the ecosystem stupid, talk stanford clean slate cto summit panel, stanford ca. Hamilton navendu jain srikanth kandula changhoon kim parantap lahiri. Vl2s implementation leverages proven network technologies, already available at low cost in highspeed hardware implementations, to build a scalable and reliable network architecture. The core objective of a datacenter network is to maintain the utilization of the datacenter servers at a uniformly high level, and doing so requires agility. In particular, the data center network should enable any server to be assigned to any service.

Tomeetthesegoals,wepresentvl2,apracticalnetworkarchi tecture. Vl2 replaces conventional hierarchical topologies with clos network topology that ensures graceful. 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. A scalable and flexible data center network microsoft research presented by. In practice, it is common to leave part of the data center network empty to ease future extension. Means for communicating with other servers, regardless of where they are in the data center. Pdf to be agile and cost effective, data centers must allow dynamic resource allocation across large server pools. In practice, it is common to leave part of the data. Routing techniques in data center networks springerlink. A quick summary of the vl2 datacenter network scheme. Datacenter new challenges to networking ethernet, and.

Maltz, parveen patel, and sudipta sengupta microsoft research changhoon kim. A scalable and flexible data center network article pdf available in communications of the acm 543. Vl2 ensures agility by establishing reachability without addressing and routing con. Such partially equipped data center is usually highly. Its the ecosystem stupid, talk stanford clean slate cto summit panel. To meet these goals, we present vl2, a practical network architecture that scales to support huge data centers. A scalable and flexible data center network albert greenberg james r. A scalable and flexible data center network perspectives. As a result, vl2 networks can be deployed today, and we have built a working prototype. To be agile and cost effective, data centers should allow dynamic resource allocation across large server pools. A highradix, lowlatency optical switch for data centers.

A scalable and flexible data center network acm sigcomm. Hamilton, navendu jain, srikanth kandula, parantap lahiri, david a. The design principles and the actual design of vl2 are directly influenced by these observations. Sep 22, 2009 vl2 is a scalable data center architecture to provide uniform high capacity between servers, performance isolation between services, ethernet layer 2 semantics in large data centers, and dynamic resource allocation across large server pools aka agility. Tomeetthesegoals,wepresentvl2,apracticalnetworkarchi tecture that scales to support huge data centers with uniform high capacity between servers, performance isolation between services, andethernetlayer. Networking the cloud in my view, we are on the cusp of big changes in the networking world driven by the availability of highradix, lowcost, commodity routers coupled with protocol innovations. A scalable faulttolerant layer 2 data center network fabric, in proceedings of acm sigcomm09, aug 2009.

Maltz, parveen patel, and sudipta sengupta microso research changhoon kim tenets of cloud. Unfortunately, the designs for todays data center network prevent agility in several ways. Pdf datacenternetworkarchitecture incloudcomputing. In 2008, 10 gige switches are on the verge of becoming commodity parts. Deployment and maintenance of current data center networks is costly and prone to errors. However, in some sense, figure 2understates the dif. Introduction cloud services need data centers with hundreds of thousands of servers and that concurrently support a large number of distinct services. Flexible any service should be flexible enough to run anywhere in the data center with full supportforbothendhostandnetworkvirtualization. Center network work with albert greenberg, james r.

A scalable, commodity data center network architecture. Cloud computing just provides flexibility at both side. A scalable and flexible data center network, sigcomm 2009. Mar 17, 2011 reading the mostrecent issue of communications of the acm, i enjoyed the reprint of vl2. 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. Many traditional data center network architectures although provide excellent scalability e. Reading the mostrecent issue of communications of the acm, i enjoyed the reprint of vl2. A scalable and flexible data center network consolidate layer2layer3 into a virtual layer 2 separating naming and addressing, also deal with dynamic. A scalable and flexible data center network 400 bad request. Data center networks are in my way, stanford clean slate cto summit invited talk, stanford, ca. Data center challenges building networks for agility usenix.