Technical introduction
Since 1994, China has realized the TCP/IP connection with the Internet, thus gradually opening the full-featured service of the Internet, and the large-scale computer network project officially started, Internet my country has entered a period of rapid development. At present, approved by the state, there are 6 domestic networks that can be directly connected to the Internet, namely the China Science and Technology Network (CSTNET) under the supervision of the Chinese Academy of Sciences, the China Education and Research Network (CERNET) under the supervision of the Ministry of Education of China, and the China Public Computer Internet under the supervision of China Telecom. (CHINANET, it is also the network with the most bandwidth at present), China Golden Bridge Information Network (CHINAGBN) managed by China Jitong, UNINET managed by China Unicom, and China Net under construction managed by China Netcom. The authorized network input ports are located in Beijing, Shanghai, and Guangzhou, which in a sense acts as an "information customs" to supervise and filter incoming and outgoing information.
China’s international export bandwidth development status
According to the 47th "Statistical Report on China’s Internet Development Status" issued by the China Internet Network Information Center (CNNIC) in February 2021, as of 2020 In December 2015, China’s international export bandwidth was 11,511,397 Mbps (excluding Hong Kong, Macao and Taiwan), with a half-year growth rate of 30.4%. The data is based on the sum of the international export bandwidth of the five backbone networks. They are: China Telecom, China Unicom, China Mobile (11,243,109 Mbps), China Education and Research Computer Network (153,600 Mbps), and China Science and Technology Network (114,688 Mbps).
Among them, the IPv6 international export bandwidth will be realized from scratch in 2020, and as of June 2021, it has reached 1,310Gbps (excluding Hong Kong and Macao Taiwan), accounting for 2.42% of the total international export bandwidth traffic. Including China Telecom (Shanghai) 20Gbps, China Mobile (Shanghai) 1,250Gbps, China Unicom (Shanghai) 10Gbps, China Unicom (Beijing) 10Gbps, and Education Network (Beijing) 20Gbps.
Export backbone network
(Telecom)
Beijing
Beijing is one of the three core node cities of China Telecom, and it is also ChinaNet One of the three international outlets of the backbone network. The main node of China Telecom North Network is in Beijing Telecom’s Jing’an Computer Room and the current Beijing Shangdi Data Center (originally 263 Computer Room), which was later acquired and reorganized into one of China Telecom’s Beijing Data Centers. It is also one of the switching centers of ChinaNet backbone network, the master node of China Telecom Northern Network.
Shanghai
Shanghai Telecom is the node of China Telecom’s CHINANET backbone network and one of the three international outlets of ChinaNet backbone network. The total international export bandwidth is 12G; the sea node of ChinaNet backbone network and Shanghai The interconnection bandwidth of the local network is 80G; the interconnection bandwidth of the ChinaNet backbone network sea node and ChinaNet Beijing (Northern Telecom) is 10G; Shanghai Telecom is an important hub node of China Telecom's domestic long-distance telecommunication network and one of the three major export offices of China International Communications. 1. It has domestic long-distance optical cable systems such as Beijing-Shanghai, North Coast, North Coast, South Coast, Shanghai-Hangzhou, Shanghai-Nanjing, and domestic satellite communication earth stations; it is China-US, Asia-Europe, Asia-Pacific, Global, China-Japan, China-Korea, etc. Important nodes in the international large-capacity submarine optical cable and terrestrial optical cable system, and have Pacific and Indian Ocean satellite earth stations; Shanghai Changxin’s computer room is the highest level, no matter how the line in the Shanghai computer room is routed, the final export of any computer room is in Wusheng Computer room and Yokohama computer room.
Guangzhou
Guangzhou Internet Service Center was put into trial operation on October 1, 1995, and the system was officially opened on January 1, 1996.
As a backbone node of ChinaNET, the public Internet service system of China, the Guangzhou Internet Service Center node is connected to the Internet nodes in Beijing and Shanghai, and forms the ChinaNET backbone network with them and nodes in other regions.
The Guangzhou node is the third international export after Beijing and Shanghai, and it is also one of the largest international exports in Guangdong and even the whole country.