Proceedings ArticleDOI
B4: experience with a globally-deployed software defined wan
Sushant Jain,Alok Kumar,Subhasree Mandal,Joon Ong,Leon Poutievski,Arjun Singh,Subbaiah Venkata,Jim Wanderer,Junlan Zhou,Min Zhu,Jonathan Zolla,Urs Hölzle,Stephen Stuart,Amin Vahdat +13 more
- Vol. 43, Iss: 4, pp 3-14
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This work presents the design, implementation, and evaluation of B4, a private WAN connecting Google's data centers across the planet, using OpenFlow to control relatively simple switches built from merchant silicon.Abstract:
We present the design, implementation, and evaluation of B4, a private WAN connecting Google's data centers across the planet. B4 has a number of unique characteristics: i) massive bandwidth requirements deployed to a modest number of sites, ii) elastic traffic demand that seeks to maximize average bandwidth, and iii) full control over the edge servers and network, which enables rate limiting and demand measurement at the edge.These characteristics led to a Software Defined Networking architecture using OpenFlow to control relatively simple switches built from merchant silicon. B4's centralized traffic engineering service drives links to near 100% utilization, while splitting application flows among multiple paths to balance capacity against application priority/demands. We describe experience with three years of B4 production deployment, lessons learned, and areas for future work.read more
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Journal ArticleDOI
Software-Defined Networking: A Comprehensive Survey
Diego Kreutz,Fernando M. V. Ramos,Paulo Veríssimo,Christian Esteve Rothenberg,Siamak Azodolmolky,Steve Uhlig +5 more
TL;DR: This paper presents an in-depth analysis of the hardware infrastructure, southbound and northbound application programming interfaces (APIs), network virtualization layers, network operating systems (SDN controllers), network programming languages, and network applications, and presents the key building blocks of an SDN infrastructure using a bottom-up, layered approach.
Journal ArticleDOI
A Survey of Software-Defined Networking: Past, Present, and Future of Programmable Networks
TL;DR: The SDN architecture and the OpenFlow standard in particular are presented, current alternatives for implementation and testing of SDN-based protocols and services are discussed, current and future SDN applications are examined, and promising research directions based on the SDN paradigm are explored.
Posted Content
Software-Defined Networking: A Comprehensive Survey
Diego Kreutz,Fernando M. V. Ramos,Paulo Veríssimo,Christian Esteve Rothenberg,Siamak Azodolmolky,Steve Uhlig +5 more
TL;DR: Software-Defined Networking (SDN) as discussed by the authors is an emerging paradigm that promises to change this state of affairs, by breaking vertical integration, separating the network's control logic from the underlying routers and switches, promoting (logical) centralization of network control, and introducing the ability to program the network.
Proceedings ArticleDOI
Achieving high utilization with software-driven WAN
Chi-Yao Hong,Srikanth Kandula,Ratul Mahajan,Ming Zhang,Vijay Gill,Mohan Nanduri,Roger Wattenhofer +6 more
TL;DR: A novel technique is developed that leverages a small amount of scratch capacity on links to apply updates in a provably congestion-free manner, without making any assumptions about the order and timing of updates at individual switches.
Book
Computer Networking: A Top-Down Approach
James F. Kurose,Keith W. Ross +1 more
TL;DR: Computer Networking: A Top-Down Approach Featuring the Internet explains the engineering problems that are inherent in communicating digital information from point to point, and presents the mathematics that determine the best path, show some code that implements those algorithms, and illustrate the logic by using excellent conceptual diagrams.
References
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Proceedings ArticleDOI
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