How to use CDN to accelerate Chongqing's streaming media server At present, streaming media technology has been widely used. Many video on demand, live broadcast services, and online advertising have applied streaming media technology, which has brought great pressure to the servers of Internet providers. By building a CDN network, streaming media content will be published to the nearest network edge, allowing users to "get materials nearby". When building a new CDN network architecture, we should not only consider the network impact brought by the rapid development of streaming media services, but also consider the problems that Internet content providers need to solve most.
The cache strategy of CDN edge nodes generally follows the HTTP standard protocol. The data cache time of CDN edge nodes is set through the cachecontrol: Maxage field in the HTTP response header. When the client requests data from the CDN node, the CDN node will determine whether the cached data has expired. If the cached data has not expired, the cached data will be directly returned to the client; Otherwise, the CDN node will send a request to the source, extract the latest data from the source, update the local cache, and return the latest data to the client. The cache time of CDN will directly affect the yield. If the CDN cache time is short, the data on the CDN edge node will often fail, leading to frequent return to the source, increasing the load of the source station, and increasing the access delay; If the CDN cache time is too long, the data update time will be slow. Developers need to add specific services for specific data cache time management.
How to use cdn to accelerate chongqing streaming media server? What are the advantages of BGP line room? No matter whether users choose Hong Kong, server rental or Hong Kong, server hosting, the first thing to consider is how to route the machine room. Among them, the server and the BGP line room of the port are of great concern. Why is that? Hong Kong and servers? What are the advantages of BGP line rooms
1. What is BGP? BGP (Border Gateway Protocol) is mainly used for the interconnection between Internet ASs. Its main function is to control the propagation of routes and select the best route through [Buy Company Server]. Most of the major domestic network operators realize multi line interconnection with their own AS numbers through the BGP protocol. After the BGP protocol is used for interconnection, all the backbone routing equipment of the network operator will judge the best route to the IP segment of the IDC machine room to ensure high-speed access of users from different network operators.
2、 What does BGP machine room mean? BGP computer room needs to apply for its own IP address segment and AS number at CNNIC (China Internet Network Information Center) or APNIC (Asia Pacific Network Information Center) (at present, Hong Kong Kuifang computer room is a member of both APNIC and CNNIC), and then broadcast the IP address to other network operators through BGP protocol. After the BGP protocol is used for interconnection, all the backbone routing equipment of the network operator will judge the best route to the IP segment of the IDC machine room to ensure high-speed access of users from different network operators.
3、 Server, advantage of port BGP line machine room
1. Fast speed: Although the Hong Kong service leased by the user [two common problems in data center monitoring automation] has only one IP address, the user's access route is determined by the router according to the actual access speed and location of each visitor. To put it simply, there are routers in the upstream and downstream of the server to choose the best route to ensure the fast access speed of tourists all over the country.
2. BGP server leasing has good scalability and convergence, and can realize interconnection with other operators, easily realizing single IP and multiple lines.
3. Because the BGP protocol has the characteristics of redundant backup and loop elimination, mutual backup can be realized when the servers you host or rent fail. At the same time, it will automatically switch to other lines without affecting normal access.
4. There are single line and multi line in China. If you rent a single line machine room of the server, the problem of mutual visits between the north and south will be more serious. Therefore, it is recommended to rent BGP multi line machine rooms without such problems. There are many BGP multi line computer rooms in Hong Kong, and the well-known Kwai Fong computer room in Hong Kong is a good choice at present.
5. When the server is attacked, BGP routing can also switch intelligently and quickly, leading the attack to foreign countries for traffic cleaning, and ultimately improving the security of Hong Kong and the server
