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本文(CRI英语听力2012年06月合辑(文本):IPV6-TO-BE-ESTABLISHED-FOR-THE-SECOND-GENERATION-OF-INTERNET.doc)为本站会员(a****)主动上传,免费在线备课命题出卷组卷网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知免费在线备课命题出卷组卷网(发送邮件至kefu@ketangku.com或直接QQ联系客服),我们立即给予删除!

CRI英语听力2012年06月合辑(文本):IPV6-TO-BE-ESTABLISHED-FOR-THE-SECOND-GENERATION-OF-INTERNET.doc

1、The Chinese government is making a great effort to switch internet protocol gateways from IPv4 to IPv6 to solve the problem of scarce IP addresses.As CRIs Liu Min reports, the second generation of the internet based on IPv6 will benefit the country with the largest number of internet users in the wo

2、rld.The first generation of the internet is coming to an end. According to the National Reform and Development Commission, the government has set a timetable to switch from IPv4 to IPv6 in China.Starting from now until the end of 2013, a trial scheme will be conducted among a small number of interne

3、t users on the application of IPv6 mainly in the commercial area. Deputy Director Zhang Xiaoqiang from the National Development and Reform Commission says the scheme will be expanded to all users over the following two years.By the end of 2015, the overall system will be established, so that IPv4 ca

4、n be smoothly transferred to the IPv6 system. We will gradually halt allocating IPv4 addresses to users as for the time being.China, in particular, suffers from a serious IP address shortage. Statistics indicate that the nation currently has more than 500 million internet users, accounting for more

5、than 20 percent of the total internet users in the world. But only a total of 30 million-odd IP addresses are available for Chinese users, which means one Chinese can only have 0.6 IP addresses, less than one-tenth that of an American user.Meanwhile, the nations surging numbers of mobile phone users

6、 are also internet surfers and they all need their own IP addresses. Li Zhengmao, Vice President of China Mobile, the largest mobile network carrier in China, complains that the inadequate supply of IP address is becoming a bottleneck for the countrys internet development.China Mobile has a total nu

7、mber of 670 million users, taking up two-thirds of the domestic market. But we only have a little more than 50 million IP addresses for our users, merely 15 percent of the total number of IP addresses in China. It is far behind the pace of our business development. For China Mobile, the current IPv4 protocol cannot meet the demand at all.So far, the largest IPv6 testing center has been located in Beijing, and the trial operation has formally kicked off. When the new system is finished, it is expected to completely solve the problem.For CRI, Im Liu Min.

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