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| Content Provider | ACM Digital Library |
|---|---|
| Author | Poutievski, Leon Zolla, Jon Hölzle, Urs Jain, Sushant Mandal, Subhasree Venkata, Subbaiah Zhou, Junlan Zhu, Min Kumar, Alok Wanderer, Jim Vahdat, Amin Stuart, Stephen Ong, Joon Singh, Arjun |
| 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. |
| Starting Page | 3 |
| Ending Page | 14 |
| Page Count | 12 |
| File Format | |
| ISSN | 01464833 |
| DOI | 10.1145/2534169.2486019 |
| Journal | ACM SIGCOMM Computer Communication Review (CCRV) |
| Volume Number | 43 |
| Issue Number | 4 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 1993-07-01 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Software- defined networking Wide-area networks Centralized traffic engineering Openflow Routing |
| Content Type | Text |
| Resource Type | Article |
| Subject | Computer Networks and Communications Software |
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