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The BGP solution is used to implement a dual-line interconnection or multi-line interconnection. We call it a BGP. SPOTO will introduce what BGP is and how to work in details. We will commit to IT training for over16 years.
The general IDC equipment room is divided into a single-line computer room, a two-line computer room, and a BGP computer room. Today, the BGP room network access refers to the BGP (Border Gateway Protocol) protocol mainly used for interconnection between Internet ASs (autonomous systems), BGP. The main function is to control the propagation of routes and select the best route to ensure high-speed access for Netcom and telecom users.
BGP is mainly used for interconnection between Internet ASs (autonomous systems). The main function of BGP is to control the propagation of routes and select the best route. China Netcom, China Telecom, China Railcom, and some large private IDC operators all have AS numbers. Most of the major network operators in the country use the BGP protocol to achieve multi-line interconnection with their own AS number. Using this scheme to achieve multi-line interconnection, IDC needs to broadcast this IP address to other network operators' networks in CNNIC (China Internet Information Center) or APNIC (Asia-Pacific Network Information Center) and AS number, and then through BGP. After the BGP protocol is interconnected, all the backbone routing devices of the network operator will determine the optimal route of the IP segment of the IDC room to ensure high-speed access for users of different network operators.
Why choose a BGP?
For users, selecting a BGP room can enable the website to communicate with each other's lines, so that all users of the connected operators can access the website quickly and more stable, without worrying about the problem caused by the line in all parts of the country. The speed of access is not the same, which is also the advantage of the traditional dual IP two-line computer room. When conditions permit, you can choose a BGP room as much as possible to give users the best access experience.
Advantages of the BGP room:
To a certain extent, the BGP room solves the problem of mutual communication between users and users, improves the access speed of users, and realizes the effect of single-IP dual-line using BGP protocol. The solution is to directly map the IP of one line to another line IP through the BGP protocol. When the visitor browses your website, it will automatically select the fastest access line according to the actual situation, so that the users of each operator can Get the best access speed.
1. The server only needs to set an IP address. The optimal access route is determined by the backbone routers on the network according to the number of router hops and other technical indicators and does not occupy any system resources of the server. Both the upstream router and the downstream route of the server can select the optimal path so that high-speed single-IP high-speed access can be realized.
2. Because the BGP protocol itself has the characteristics of redundant backup and elimination of loops, when the IDC service provider has multiple BGP interconnection lines, the routes can be backed up to each other. When a line fails, the route will automatically switch to other lines.
3. The BGP protocol can also make the network have strong scalability. It can interconnect the IDC network with other operators, and easily realize single-IP multi-line so that all users of the interconnection operators can access quickly. This is unmatched by the dual IP dual line.
The advantages of the BGP room compared to other machine rooms are:
The main function of BGP is to control the propagation of routes and select the best route. Compared with the traditional dual-IP dual-line technology, the BGP-based equipment room can select the optimal path for the uplink and downlink routes of the server, so it can realize high-speed single-IP high-speed access, and BGP has redundant backup. Eliminate the characteristics of the loop, when a line goes wrong, it will automatically switch to other normal lines.
1. The computer room supports multiple lines, so that the terminal Internet users such as Telecom, China Unicom, and mobile have fast access speeds, and there is no cross-line jump; one of the lines fails, such as a problem with the mobile optical cable, which can automatically switch the mobile user to other lines. The mobile user cannot access the server.
2. Some IDC public BGP multi-line computer rooms are self-built, and the service advantages are significant. For example, 7*24 server fault maintenance is more flexible, such as increasing bandwidth, IP resources, using standby servers, and replacing hardware to replace user downtime servers in time. Fault hardware, the most important thing is not to go through those bureaucratic procedures, to handle business for a long time, the speed is very fast. It is also really doing something for the customer.
3. The bad place is that the BGP line is expensive. The same machine and bandwidth are much higher than the single line. The larger the bandwidth, the larger the ratio. Generally, companies with more than Gigabit bandwidth do not use BGP multi-line. Then there is no single line sufficient for the BGP multi-line machine room to export bandwidth. One attack can catch up, and large traffic such as a 20G network will lose packets.
Advantages and disadvantages of the two-line implementation:
The advantages of dual-line dual IP: lower cost
Disadvantages: Dual-line dual-IP room usually refers to the two-line access of Telecom Netcom, but the network is not stable enough and occupies a large number of server resources. BGP is the latest technology of multi-line. It is also the trend of future development of two-line computer room, so individuals I think it is better than the ordinary two-line.
