Many people believe that the traditional fixed-line operators have an urgent need for IPv6, but in fact, with the rapid increase in demand for mobile Internet, IPv6 is also the key to the success of mobile operators. Last week, Huang Xiaoqing, president of the China Mobile Communications Research Institute, called on IPv6 to develop as early as possible at the IETF (Internet Engineering Task Force) conference.
It is understood that based on the previous laboratory equipment testing, China Mobile will further increase network testing, and will start IPv6 network testing on CMNET at the beginning of next month. Testing will focus mainly on dual-stack and 6PE/6VPE tunnel technologies.
Development of LTE requires IPv6 support
The shortage of IPv4 addresses is no longer news. According to the IANA plan of the global Internet distribution agency, IPv4 public addresses will be allocated in early 2011. Previously, China Mobile has been using IPv4 private addresses, but now more and more exposed the use of private addresses.
"I estimated the amount of IPv4 addresses in China, excluding Internet access for mobile communications, and it is possible that the existing fixed-line netizens will each receive 0.6 IPv4 public addresses. China Mobile previously used private addresses, but it gradually felt that Private addresses are divided into blocks, which can be difficult to manage after cross-border, and there are more and more businesses that need real addresses,†said Academician Jiang Hexin of the Chinese Academy of Engineering in an interview with a reporter from China Electronics News. Because a large number of private addresses are used, some existing mobile services have address translation problems, which increases the complexity of the networking and affects the speed and quality of service development. This is a reality faced by mobile operators.
But for China Mobile, the urgent demand for IPv6 is mainly due to the consideration of the future layout. “To global operators, this is an important historical moment. Faced with future demand for network traffic that is doubling between 50 and 100 times, we must do major technological innovations at this time to ensure that it can evolve rapidly in the future. To the new network," Huang Xiaoqing told the China Electronics News reporter. In response to this trend in the future, China Mobile has proposed the “WiiSE (Wireless IP/Internet Services Environment) projectâ€. Huang Xiaoqing believes that IPv6, LTE and cloud computing are the three most important technologies in this project.
"LTE and IPv6 are the best evolutionary directions for next-generation networks, and only IPv6 can support the demand for LTE networks," said Huang Xiaoqing. LTE stands for "always on" network, which means that regardless of whether an application is in use, as long as the user terminal is turned on, an IP address needs to be assigned to the terminal. It is reported that in 2015, there will be 300 million LTE users worldwide. This does not include the demand for addresses arising from the rise of the Internet of Things. In the next five years, due to the development of the Internet of Things, it will require 520 million to 900 million IP addresses.
Therefore, IPv6 is the only feasible way to solve the shortage of IP addresses so far. He He also said that forever online, Internet of Things applications require a large number of IP addresses, and China must switch from IPv4 to IPv6. "Especially for mobile operators, they should develop IPv6 as soon as possible," Huang Xiaoqing said.
IPv6 ecological chain is not perfect yet
However, knowing that the address is not enough, operators cannot immediately invest in the construction of IPv6 networks without impunity. "Now most application providers continue to develop on IPv4 and have little ability to provide IPv6 services. Because both computers and mobile phones support very little IPv6, content and service providers simply do not want to switch to IPv6. "He Hejun told reporters. According to OECD statistics, as of March 2010, only 8% of the world’s top 1,000 websites had developed IPv6 services, which was only 0.16% of the top one million websites. This situation also plagued China Mobile, and China Mobile used the “serious shortage of IPv6 applications†to describe the status quo.
The most immediate cause of the lack of applications is the lack of terminals. It is understood that although there is currently a TD-SCDMA prototype supporting IPv6 (based on the OMS operating system), it is still far from commercial requirements. In 2G terminals, although a few mainstream enterprises have already launched commercial phones supporting IPv6, dual-stack terminals still need to be developed, and problems such as this have been exposed in the tests.
In addition, even if it is the earliest mature system equipment, it cannot be said that "commercial preparation is completely ready." According to the "China Electronics News" reporter, the previous phase of China Mobile mainly tested various types of equipment in the laboratory, of which only three of the five manufacturers could participate in the GPRS core network equipment test. The other two current devices do not support the test. IPv6, and I do not know when it can support, and only two of the three companies involved in the test passed the test.
IPv4 should "pull" to IPv6
The industry generally believes that it will take a long time to migrate from an existing IPv4 network to an IPv6 network. In the process, IPv6 will coexist with IPv4 for a long time. So, how should IPv6 coexist with IPv4 for a long time? China Mobile's solution is to use a certain technology to pull IP data stream to IPv6 technology.
“China Mobile began research and development of IPv6 five years ago. It began research on BIH (Bump-in-Host) three years ago. We are looking for ways to evolve to IPv6 without affecting existing IPv4 services to ensure that our network and service processes are simplified. Without affecting the scope of application of existing IPv4 and its Internet environment,†Huang Xiaoqing told the “China Electronics News†reporter. BIH is equivalent to a coexistence scheme of IPv6 and IPv4. According to reports, in the framework of CNGI, BIH related products have been successfully developed and trial preparation has been started. “BIH is dominated by China Mobile and is also dominated by China. Many important domestic technology companies are very active and many international companies have participated. Currently, BIH is very mature in technology and the next step is how to promote it.†Huang Xiaoqing said.
"According to the Internet tradition, after a technology is made, the number of people who use it becomes the standard. We also hope to make history in this way." Huang Xiaoqing told reporters, "In a sense, BIH is China's IPv6. We hope that it will take root if there is an effective evolution plan. If more and more people use it, this technology will succeed. We also decided to contribute the intellectual property that we have developed to the international organizations through the open source model."
It is understood that based on the previous laboratory equipment testing, China Mobile will further increase network testing, and will start IPv6 network testing on CMNET at the beginning of next month. Testing will focus mainly on dual-stack and 6PE/6VPE tunnel technologies.
Development of LTE requires IPv6 support
The shortage of IPv4 addresses is no longer news. According to the IANA plan of the global Internet distribution agency, IPv4 public addresses will be allocated in early 2011. Previously, China Mobile has been using IPv4 private addresses, but now more and more exposed the use of private addresses.
"I estimated the amount of IPv4 addresses in China, excluding Internet access for mobile communications, and it is possible that the existing fixed-line netizens will each receive 0.6 IPv4 public addresses. China Mobile previously used private addresses, but it gradually felt that Private addresses are divided into blocks, which can be difficult to manage after cross-border, and there are more and more businesses that need real addresses,†said Academician Jiang Hexin of the Chinese Academy of Engineering in an interview with a reporter from China Electronics News. Because a large number of private addresses are used, some existing mobile services have address translation problems, which increases the complexity of the networking and affects the speed and quality of service development. This is a reality faced by mobile operators.
But for China Mobile, the urgent demand for IPv6 is mainly due to the consideration of the future layout. “To global operators, this is an important historical moment. Faced with future demand for network traffic that is doubling between 50 and 100 times, we must do major technological innovations at this time to ensure that it can evolve rapidly in the future. To the new network," Huang Xiaoqing told the China Electronics News reporter. In response to this trend in the future, China Mobile has proposed the “WiiSE (Wireless IP/Internet Services Environment) projectâ€. Huang Xiaoqing believes that IPv6, LTE and cloud computing are the three most important technologies in this project.
"LTE and IPv6 are the best evolutionary directions for next-generation networks, and only IPv6 can support the demand for LTE networks," said Huang Xiaoqing. LTE stands for "always on" network, which means that regardless of whether an application is in use, as long as the user terminal is turned on, an IP address needs to be assigned to the terminal. It is reported that in 2015, there will be 300 million LTE users worldwide. This does not include the demand for addresses arising from the rise of the Internet of Things. In the next five years, due to the development of the Internet of Things, it will require 520 million to 900 million IP addresses.
Therefore, IPv6 is the only feasible way to solve the shortage of IP addresses so far. He He also said that forever online, Internet of Things applications require a large number of IP addresses, and China must switch from IPv4 to IPv6. "Especially for mobile operators, they should develop IPv6 as soon as possible," Huang Xiaoqing said.
IPv6 ecological chain is not perfect yet
However, knowing that the address is not enough, operators cannot immediately invest in the construction of IPv6 networks without impunity. "Now most application providers continue to develop on IPv4 and have little ability to provide IPv6 services. Because both computers and mobile phones support very little IPv6, content and service providers simply do not want to switch to IPv6. "He Hejun told reporters. According to OECD statistics, as of March 2010, only 8% of the world’s top 1,000 websites had developed IPv6 services, which was only 0.16% of the top one million websites. This situation also plagued China Mobile, and China Mobile used the “serious shortage of IPv6 applications†to describe the status quo.
The most immediate cause of the lack of applications is the lack of terminals. It is understood that although there is currently a TD-SCDMA prototype supporting IPv6 (based on the OMS operating system), it is still far from commercial requirements. In 2G terminals, although a few mainstream enterprises have already launched commercial phones supporting IPv6, dual-stack terminals still need to be developed, and problems such as this have been exposed in the tests.
In addition, even if it is the earliest mature system equipment, it cannot be said that "commercial preparation is completely ready." According to the "China Electronics News" reporter, the previous phase of China Mobile mainly tested various types of equipment in the laboratory, of which only three of the five manufacturers could participate in the GPRS core network equipment test. The other two current devices do not support the test. IPv6, and I do not know when it can support, and only two of the three companies involved in the test passed the test.
IPv4 should "pull" to IPv6
The industry generally believes that it will take a long time to migrate from an existing IPv4 network to an IPv6 network. In the process, IPv6 will coexist with IPv4 for a long time. So, how should IPv6 coexist with IPv4 for a long time? China Mobile's solution is to use a certain technology to pull IP data stream to IPv6 technology.
“China Mobile began research and development of IPv6 five years ago. It began research on BIH (Bump-in-Host) three years ago. We are looking for ways to evolve to IPv6 without affecting existing IPv4 services to ensure that our network and service processes are simplified. Without affecting the scope of application of existing IPv4 and its Internet environment,†Huang Xiaoqing told the “China Electronics News†reporter. BIH is equivalent to a coexistence scheme of IPv6 and IPv4. According to reports, in the framework of CNGI, BIH related products have been successfully developed and trial preparation has been started. “BIH is dominated by China Mobile and is also dominated by China. Many important domestic technology companies are very active and many international companies have participated. Currently, BIH is very mature in technology and the next step is how to promote it.†Huang Xiaoqing said.
"According to the Internet tradition, after a technology is made, the number of people who use it becomes the standard. We also hope to make history in this way." Huang Xiaoqing told reporters, "In a sense, BIH is China's IPv6. We hope that it will take root if there is an effective evolution plan. If more and more people use it, this technology will succeed. We also decided to contribute the intellectual property that we have developed to the international organizations through the open source model."
The handheld addresser is used to program the address of the monitoring module offline. When in use, connect the two output wires of the handheld encoder to the communication bus terminal (terminal label 1, 2) of the monitoring module, turn on the black power switch on the right side upwards, and press "ten Add", [Subtract ten", [Add one place" and [Subtract one place" to program the address.
Hd Encoders,Twitch Encoder,Resolver Encoder,Incremental Rotary Encoders
Changchun Guangxing Sensing Technology Co.LTD , https://www.gx-encoder.com