首页
登录
职称英语
To see how big carriers could control the online world, you must understand
To see how big carriers could control the online world, you must understand
游客
2024-12-14
0
管理
问题
To see how big carriers could control the online world, you must understand its structures.
Earthlink gives Jennifer access to the Internet, much in the way than an onramp puts a driver on the national highway system. Earthlink is a local internet service provider, and it will send the【1】to an Internet "【2】provider", to route it along its way.
These Internet players typically own and lease long-haul fiber-optic cables spanning a large region. They also own the communications gear that directs【3】over the Internet. They connect to each other to exchange data between their customers, like the highway system over which most of the freight of the Internet travels to reach its【4】.
Now, instead of the National Science Foundation, there are many of them that-link together to provide the global【5】, that is the Internet.
The problem was, as the Internet grew, the public points became overburdened and traffic showed at these bottlenecks. So they started making arrangements with each other. And they aren’t changing peers now,but there is a lot of discussion about whether they should. And the industry has not figured out how to【6】who owes what to whom if fees should be changed.
Since the Internet was【7】, it has grown by leaps and bounds into a remarkably successful communications medium without government【8】--and most want to stay that way. But the Internet has matured to a point that more uniform rules are needed to【9】competition.
Those who can afford to pay the price can become peers. Peering would be determined by the【10】rather than by a private company with its own competitive interests. [br]
How The Internet Works
To see how big carriers could control the online world, you must understand its structure.
When Jennifer, who lives in Pasadena, Calif. , wants to send an E - mail message from her home computer to her mother in Washington, D. C. , she uses a local Internet service provider (ISP) such as Earthlink Network Inc. (EINK). Earthlink gives Jennifer access to the Internet, much in the way that an onramp puts a driver on the national highway system.
After Jennifer’s computer makes a local telephone call to Earthlink local bank of modems, Jennifer types in her E-mail message and hits" send". Based on Morn’s E - mail address, Earthlink will recognize that Morn is a cnstmer of an ISP in Washington called Erols Internet Inc. (RCNC). Earthlink will then send the E - mail to an Internet "backbone provider", such as GTE Gorp. (GTE), to route it along it way.
Backbone providers are the Internet players that typically own and lease long-haul fiber - optic cables spanning a large region. They also own the communications gear that directs traffic over the Internet. There are only a handful of major backbone providers, including MCI, Worldlom, Sprint Cop. ( FON), GTE, and PSINet Inc. (PSIX)
Backbone providers connect to each other to exchange data between their customers. They also pick up and deliver traffic for a fee from the 7000 or so smaller ISPs, who give residential and small-business users access to the Internet. Backbone carriers are like the highway system over which most of the freight of the Internet travels to reach its destination.
When the Internet was still a government - run system, there was only a single Internet backbone: the NSFNET, operated by the National Science Foundation, which connected the regional government -funded Internet networks that were run by various research universities. When the government privatized the NSFNET in 1995, companies such as MCI, UNNET Technologies (now owned by worldcom), BBN (Now owned by GTE), and PSINet stepped into the breach by setting up commercial Internet backbone services. New, instead of one NSFNET backbone, there are many of them that link together to provide the global connectivity, that is the Internet.
When the NSFNET was privatized, the government set up three locations in the U.S. where various Internet backbone companies could place their communications gear side by side and connect to each other. These so called "public peering points" are in Chicago, Palo Alto, Calif. , and Pennsauken, N. J. Later, the government sanctioned two industryrun public peering points called Metropolitan Access Exchange East and West - MAEEast, in Vienna, Va. , and MAE-West in San Jose,calif.
The problem was, as the Internet grew, the public points became overburdened and traffic slowed at these bottlenecks. So backbone providers started making arrangements with each other, called" private peening. "There are direct, bilateral connections between two carriers in which no fees are charged.
Backbone providers aren’t charging peers now, but there is a lot of discussion about whether they should. Most industry experts say the Internet needs to develop some payment scheme. After all,it is now a commercial, profit-making business, not a government free bie.
But the industry has not figured out how to calculate who owes what to whom. Without an industry standard or government regulation, smaller companies fear that larger ones will set these charges in an arbitrary and discriminatory fashion. There could be a lot of " cockamamie measurements," says Leonard kleinrock, an Internet thunder and computer science professor at the University of California at Los Angeles.
Since the Internet was privatized, it has grown by leaps and bounds into a remarkably successful communications medium without government regulation--and most want it to stay that way.
But the Internet has matured to a point that more uniform rules are needed to safeguard competition. As a first step, experts argue that backbone providers should have to disclose the criteria for becoming a peer. This would allow companies to see whether they are being discriminated against.
An industry group called the Global Internet Project - whose members include such major backbone providers as MCI, GTE, and AT&T--is developing a longer term solution. The group advocates a fair and public system under which all backbone providers would pay each other fer carrying Net traffic.
"We need a market mechanism to ensure peering for all," says Daniel Schulman, president of AT&T World Net Service, a project member. Many issues need to be worked out,including who would do the policing. Still, with a clear payment system, those who can afford to pay the price can become peers. Peering would be determined by the market rather than by a private company with its own competitive interests.
选项
答案
privatized
解析
privatize为"to change(e. g. an industry) from gover mental or public ownership or control to the individual enterprise."私有化
转载请注明原文地址:https://tihaiku.com/zcyy/3874377.html
相关试题推荐
WhichofthefollowingisTRUEaboutthesafetyofputtingphotosonline?[br]
WhichofthefollowingisTRUEaboutthesafetyofputtingphotosonline?[br]
WhichofthefollowingisTRUEaboutthesafetyofputtingphotosonline?[br]
Whetheryoukeepallthereceiptsinashoeboxoruseonlinebanking,youshoul
Whetheryoukeepallthereceiptsinashoeboxoruseonlinebanking,youshoul
HowInterpretersWork?I.UnderstandingA.Aboutwordsande
HowInterpretersWork?I.UnderstandingA.Aboutwordsande
HowInterpretersWork?I.UnderstandingA.Aboutwordsande
HowInterpretersWork?I.UnderstandingA.Aboutwordsande
HowInterpretersWork?I.UnderstandingA.Aboutwordsande
随机试题
Frank’sfather,______worksinaforeigntradecompany,alwaysgoesonabusines
公文的特定格式有()。A、信函格式 B、命令格式 C、简报格式 D、会议
风险可以从不同的角度、根据不同的标准来进行分类。百年不遇的暴雨属于( )。A.
既可清热燥湿,又善清心、胃实热的药物是A.龙胆B.黄芩C.苦参D.黄柏E.黄连
下列不是呼吸性酸中毒的病因的是A、呼吸肌麻痹 B、气道阻塞 C、肺泡弥散障碍
相对回收率属于药物分析方法验证指标中的A.精密度 B.准确度 C.检测限
若sec2x是f(x)的一个原函数,则 等于( )。A、tan
下列属于主动绿色技术的有()。A:雨污水的处理与回用B:使用透水地面材料C:
顾先生希望在第5年年末取得20000元,则在年利率为2%、单利计息的方式下,顾先
金融市场的参与者利用组合投资分散投资于单一金融资产所面临的是系统性风险。()
最新回复
(
0
)