cloud network hunting note: Google fiber net fast? The answer is yes. However, the “shadow” Internet transmission speed is even more shocking, Google is the one hundred times of the fiber. And its fast transmission speed is also a day, now, just to see the magic of “shadow” Internet.
when Google chief financial officer Patrick Pichette said that Google will provide us households per 10 gb/s network services, people feel the declaration like in science fiction, because it is 1000 times faster than today’s home network. However, for NASA, the speed is not worth.
when the home users to transmit data through the public Internet, NASA is using the shadow Network called “ESnet”, this is the “Energy Science Network” (Energy Science Network) acronym. The network consists of a set of private pipeline across America at a speed of 91 gb/SEC on data transmission, and the network to transmit data is the fastest.
NASA does not intend to spread to households, the technology but it is to use the technology to develop a new generation of computer applications. ESnet, developed by the U.S. department of energy (doe) management, are of great help for projects handling Large amounts of data, such as the Large Hadron Collider, false starts), and the Human Genome project (the Human Genome). ESnet director Gregory Bell said: “our vision is for the world, scientific findings should not be restricted by geography.” At the same time, in order to speed as quickly as possible, ESnet and NASA researchers are testing the network operation technology, the network may eventually commercialized.
in short, ESnet is to find the computer a window of the world.
the defense department’s ARPAnet was the first nationwide computer research network, it gradually evolved to today’s Internet. But ARPAnet is not the last of the same network. In 1976, the U.S. department of energy (doe) sponsored magnetic fusion energy network project to connect to the present national energy research scientific computing center (NERSC) and other laboratory. In 1980, after the us department of Energy and creates another called “High Energy Physics” (High Energy Physics) network to connect national laboratory for particle Physics research projects. As the Internet is becoming more and more important, the department is responsible for the people to realize that there is no need too much network system maintenance, therefore to combine the above two networks became the ESnet today.
this network for the same. In the early days, the network based on the ground and satellite links. Now, is used in the United States department of energy, the national institute on 17 laboratory and other optical fiber, such as the university laboratory. Since 2010, ESnet and Internet2 (Internet commercialization, was founded in 1995 as the research personnel of the service of non-profit international network) has been leased “dark fiber”, also is the Internet bubble in the 1990 s in the commercial Internet providers of excess capacity.
in November, NASA’s use of the network, the team advanced computer network data transmission speed of up to 91 gb/SEC, the transmission across the Denver in Maryland and NASA Goddard space center, is in the “real world” environment for the fastest an end-to-end data transmission.
in a long time ago, ESnet theory can achieve 10 gb/s data transmission speed. Since 2010, network equipment provider has provided 10 gb of switches. But in practical application, long-distance transmission speed to slow a lot. Because the data is not transmitted through optical fiber for straight line. For example, it wasn’t like the super highway network, and more like the interstate highway system. If you are going to through interstate highway driving from San Francisco to New York, you will go through many cities along, will transform unused road. In the same way, via the Internet or between San Francisco and New York ESnet the same is true with transfer files – data from across multiple hardware system of the city, and the slow speed.
ESnet the linked site map
in 2012, NASA by ESnet to transmit data at the Goddard space center and the university of Utah to 98 gb/SEC per second. Earlier this year and Alcatel – Lucent (alcatel-lucent) and BT (BT) in London and ipswich data transmission speed up to 1.4 terabytes per second per second, this is the fastest. The two transmission, however, is to establish a direct connection between locations, but in the real world, this kind of situation very little.
on the Internet and ESnets, transmission lines each station is a potential “bottleneck”, and every part of on line should be ready for transmission of 100 gb. Last November, high-end computer network team finally made the goal a reality. Transmission projects to provide equipment for Britain Brocade sales director Tony Celeste said: “the data transmission and the use of the technical and commercial to keep data in large data network transmission ability about”.
at the same time, the network is developing constantly, the constant progress in other areas. The researchers used ESnet probe called the “OSCARS” virtual network circuit, this circuit can be under the condition of no change of the hardware of the complex, to create a complex network. At the same time, they are still in the study we know the DMZ network, the network can not rely on traditional firewall handling security issues, so as to realize the rapid transmission of its data.
these solutions is designed specifically for the few in number but large data transmission activities designed, compared with the commercial Internet is used for the transmission of large number but smaller. Even so, the commercial Internet company there are still a lot need to learn from ESnet. XO Communications, telecommunications company has 100 gb of backbone, is expected to more companies to follow the pace of the XO in the future.
although the near-term home users can’t have 10 gb/s transmission rate, but will mean that the Internet backbone network to improve the capacity of the phenomenon of network congestion has become less and less, although there will be more and more users will stream high-definition video and download large files. ESnet is not stop there. Bell said that the U.S. department of energy has been well prepared for transmission network development 400 gb, at the same time its long-term goal is 1 TB/s network, that is to say, the network 100000 times faster than today’s family to use. Compared with the rhetoric of Google, now just like a science fiction novel.