ABOUT INTERNET 2
     
1．What is Internet 2？
     
　　Internet 2 is a not-for-profit consortium，led by over 180 US universities，developing and deploying advanced network applicatons and technology，accelerating the creation of tomorrow’s Internet．With participation by over 60 leading companies，Internet 2 recreates the partnership of academia，industry and government that helped foster today’s Internet in its infancy．
   
2．Is Internet 2 a separate network？Will Internet 2 replace the current commercial Internet？

　　Internet 2 is not a separate physical network and will not replace the Internet．Internet 2 brings together institutions and resources from academia，industry and government to develop new technologies and capabilities that can then be deployed in the global Internet．Close collaboration with Internet 2 corporate members will ensure that new applications and technologies are rapidly deployed throughout the Internet．Just as E-mail and the World Wide Web are legacies of earlier investments in academic and federal research networks，the legacy of Internet 2 will be to expand the possibilities of the broader Internet．
  
3．How will Internet 2 benefit current Internet users？
   
　　Internet 2 and its members are developing and testing new technologies，such as Ipv6，multicasting，and QoS．[1] However，these applications require performance not possible on today’s Internet．More than a faster Web or E-mail，these new technologies will enable completely new applications such as digital libraries，virtual laboratories，distance-independent learning and tele-immersion[2]．A primary goal of Internet 2 is to ensure the transfer of new network technology and applications to the broader education and networking communities．

4．What is the relationship between the Next Generation Internet（NGI）Internet 2，and other advanced networking initiatives?

　　The university-led Internet 2 and the federally-led NGI are parallel and complementary initiatives based in the United States．Internet 2 and NGI are already working together in many areas．For example，through participation in a NSF NGI program，over 150 Internet 2 universities have received competitively awarded grants to support connections to advanced backbone networks such as Abilene and the very high performance Backbone network service（vBNS）[3]．Internet 2 is also forming partnerships with similar advanced networking initiatives around the world．Working together will help ensure a cohesive and interoperable advanced networking infrastructure for research and education，and the continued interoperability of the global Internet．

5．What are some of Internet 2’s long-term goals？
   
　　A key goal of this efforts is to accelerate the diffusion of advanced Internet technology，in particular into the commercial sector．In this way，Internet 2 will help to sustain United States leadership in internetworking technology．Internet 2 will benefit non-university members of the educational community as well，especially k-12 and public libraries．Internet 2 and its members aim to share their expertise with as wide a range of computer users as possible．This approach characterized the first Internet and it can work again today．For Internet 2 universities，this means providing high-performance networking on their campuses-investing to upgrade their campus networks and connecting to a national Internet 2 backbone network．For Internet 2 corporate partners，this means actively collaborating with Internet 2 universities and in Internet 2 initiatives．

NOTES

[1]Ipv6，互联网协议第6版（version 6），其主要的改进在IP编址上，改为128位IP
地址方式，以解决目前Ipv4 32位地址所造成的地址资源不足的问题；multicasting指多播；QoS是Quality of Service的缩写，指服务质量。
[2]tele-immersion，此处应理解为远程登录。
[3]NSF（National Science Foundation），（美）国家科学基金会。

KEYWORDS

 digital library   数字图书馆
 virtual laboratory   虚拟实验室
 backbone network   主（骨）干网络
 multicasting    多播
 Quality of Service（QoS）  服务质量

翻译：

关于Internet 2
   
1．什么是Internet 2
    Internet 2是一个由180余所美国大学领导、开发和使用先进的网络应用程序和技术，加速创建未来因特网的非盈利合作的典范。在有60多家业内领先的公司加盟以后，Internet 2重组了有学术界、工业界和政府参加的合作关系，这有助于培育当今尚处在发展初期的因特网。

2．Internet 2是一个单独的网吗？Internet 2将取代当前的商业因特网吗
    Internet 2不是一个单独的物理网、也不会取代因特网。Internet 2把从学术界、工业界和政府来的制度和资源集中在一起，以便开发能在全球因特网上使用的新技术和功能。Internet 2团体成员之间的紧密合作将保证在因特网上很快地使用新的应用程序和技术。正如电子邮件和万维网是早期投资的学术和联邦科研网的遗产一样，Internet 2带给人们的将是因特网的能力扩充。

3．Internet 2如何给当前因特网用户带来好处
    Internet 2及其成员正在开发和试验一些新技术，如Ipv 6、多播和服务质量（QoS）。但是，这些应用程序所需要的性能在今天的因特网上是不能满足的。不仅仅是比万维网和电子邮件速度更快，而且这些新技术将允许实现全新的应用，诸如数字图书馆，虚拟实验室，距离无关的学习和远程沉浸。Internet2的一个主要目标是保证新网络技术和应用投入到更广的教育和联网团体上。

4．下一代因特网（NGI）Internet 2与其他先进联网技术之间的关系
    由大学领导的Intern以2和由联邦政府领导的NGI都是以基于美国的开创性工作，二者是并行的互为补充的。Internet 2与NGI已经在许多方面携手共进。例如通过参加美国国家科基金会NGI计划，己有超过150个研究Internet 2的大学通过竞争获得授权，成为支持连接诸如Abilene大学试验网和甚高性能主干网络这类高级骨干网的一部分。Internet 2也正在与全世界类似的先进网络倡导者形成伙伴关系。共同工作将有助于保证研究和教育的紧密结合并提供协同工作的先进联网基础设施以及与全球因特网的持续协同工作性。

5．什么是Internet 2的长期目标
    这一努力的一个关键目标是加速先进因特网技术的扩散，特别是渗透到商业领域中。这种情况下，Internet 2将有助于维持美国在互联网技术中的领导地位。Internet 2也会为非大学的教育团体成员带来好处，特别是从幼儿园、中小学校和公共图书馆。Internet 2及其成员的目标是与尽可能广的计算机用户共享他们的技术。这一方法是第一代Internet的特点，并且今天依然如此。对于研究Internet 2的大学，这意味着可以在他们的校园内提供高性能联网——使他们投资的校园网升级并联结到国家Internet 2主干网上。对于Internet合作伙伴，这意味着在Internet 2的开创中与Internet 2的大学的积极合作。

EXERCISES
1．True / False．
（1）＿＿＿Internet 2 will replace the current commercial Internet．
（2）＿＿＿The Next Generation Internet is federally-led．
（3）＿＿＿Internet 2 is a not-for-profit consortium．
（4）＿＿＿Internet 2 is a separate physical network．
（5）＿＿＿Most PC machines sold today include the ability to use the Internet．
（6）＿＿＿Ipv6 has 128-bit address mode．
（7）＿＿＿Internet 2 will benefit university members only．
（8）＿＿＿Internet 2 will become a backbone network of U. S．
（9）＿＿＿Over 60 leading companies have participated in the Internet 2．
（10）＿＿＿Over 180 Internet 2 universities have received competitively awarded grants to support connections to advanced backbone networks．

2．Fill in the blanks．
（1）＿＿＿are the partners joining the Internet 2．
（2）New technologies used to develop Internet 2 include＿＿＿．
（3）＿＿＿are already working together in many areas．
（4）A key goal of developing the Internet 2 is to accelerate＿＿＿．
（5）We expected the capabilities to use＿＿＿being tested and developed by Inter-net 2．
（6）New applications provided by Internet 2 will include＿＿＿．
（7）Internet 2 brings together＿＿＿from academia，industry and government to develop new technologies and capabilities．
（8）Internet 2 is forming partnerships with＿＿＿around the world．
（9）The legacy of Internet 2 will be to expand＿＿＿．
（10）Internet 2 is＿＿＿．
     a．Internet 2 and NGI
     b．digital libraries，virtual laboratories，distance-independent learning and tele-imm-ersion
     c．academia，industry and government
     d．university-led
     e．institutions and resources
     f．the possibilities of the broader Internet
     g．lpv6，multicasting and QoS
     h．new technologies and applications
     i．similar advanced networking initiatives
     j．the diffusion of advanced Internet technologies

答案：
1．
（1）f  （2）t  （3）t  （4）f
（5）t  （6）t  （7）f  （8）t
（9）t  （10）f

2．
（1）c  （2）g  （3）a  （4）j
（5）h  （6）b  （7）e  （8）i
（9）f  （10）d