When choosing a server custody business, companies often hear the IDC service provider recommending BGP. It is well known that the advantages of multi -line computer room BGP computer rooms are the advantages of a single -line computer room. When a single line fails, it can automatically allocate to another line. The same BGP line has a difference in price, and even authentic BGP saying.

　　What is BGP?

　　The Border Gateway Agreement (BGP) is the only agreement that can properly handle unrelated routes in the Route Domain. Generally speaking, China Telecom, China Unicom, China Mobile, and some ownership AS large private autonomous regions IDC operators can achieve multi -line interconnection through the BGP protocol.

　　Specific implementation plan

　　Domestic IDC machine rooms need to apply for IP address segments and AS at the CNNIC (China Internet Information Center) or APNIC (Asia Pacific Network Information Center) and then do IP address broadcast to other network operators AS, and connect multiple AS connections through the BGP protocol via the BGP protocol Realize automatic inter -netwriting access. At this time, when the user sends an access request, it will be the best routing between the basic BGP that has established multiple connection protocol mechanism AS to achieve high -speed access to the same machine room of different network operators users.

　　BGP advantage

　　Select the lines of automatic optimal network paths to achieve multi -network access reliably and stably

　　1. What is the difference between the price of authentic BGP?

　　We mentioned above that building BGP network companies first need to have its own AS number and IP and then put themselves on the address segment IP to all operators to broadcast address segments AS and connect their own network AS with multiple corresponding AS, and then Guide users through the BGP protocol to access the server through the best path.

　　True BGP cost = AS IP address segment equipment cost dynamic (BGP) bandwidth

　　Pseudo -BGP cost = AS IP address section Equipment cost static bandwidth

　　2. What is the difference between the effect of authentic BGP?

　　Even if the real BGP encounters a single -line failure, it can realize the automatic choice of the best user path. BGP users can still automatically choose the best access path.

　　Although the pseudo -BGP has also implemented a multi -line access, it is not the real BGP dynamic best path switching function. Therefore, once the line fails, the user cannot access it and can only switch manually.

　　Of course, in addition to the above three cases, there is also a semi -true and semi -fake BGP computer room on the market

　　3. Hybrid BGP

　　For example, a company is called five -line BGP Unicom, mobile, and A company A is a BGP dynamic bandwidth, while China Telecom and B companies are static bandwidth. Once Unicom or other dynamic bandwidth lines fail, users can only automatically allocate the dynamic bandwidth lines of mobile and A companies, and they will still realize BGP. If the static bandwidth of Chinese telecommunications or B companies fails, users will automatically allocate other static or dynamic dynamics. The web, the static bandwidth AS routing black hole is an AS internal user formed in the middle, which will not be accessed. It requires manual intervention in manual repair. The repair time is longer.