True BGP the users the best path can be automatically choose

Even in a single line fault, BGP still can guide the user to select the best access path automatically

Pseudo BGP has realized the multi-line access, but do not have true BGP dynamic optimal path switching function, therefore, once the circuit malfunction can cause users can't access, can only be accessed through manual switch circuit,

Of course, in addition to the above three kinds of circumstances, the market still have a kind of half-truths BGP room

The hybrid BGP

Such AS A computer room, known AS the five line BGP, unicom, mobile, A business of BGP dynamic bandwidth, while China telecom enterprise to static bandwidth, A and B once unicom circuit failure, or other dynamic bandwidth users only can be automatically assigned to the mobile and enterprise dynamic bandwidth on A line, A still achieved the effect of BGP, but China telecom or static bandwidth B enterprise fails, the user will not be automatically assigned to other static or dynamic network, and in the static bandwidth AS black hole formed in the routing, that of the user will be unable to access the AS, requires human intervention to manually repair and repair for A long time,

Do you think "back to the countryside" is over? Be careful! Rural road is more slippery!!!!!!

"Lend chicken unripe egg" type BGP

Besides hybrid BGP, currently on the market have a cheaper way of BGP implementation, AS shown above, the enterprise procurement China telecom single room and its own IP address broadcast at the same time, IDC with another third party service provider of pseudo BGP room for special line connected, at the same time will be its own IP address in the third party IDC service providers AS broadcast domain, so that it can be disguised in a single room based on BGP effect is achieved, but same AS a case, once appear, fault, static bandwidth routing black holes, must be conducted the artificial intervention, and repair for a long time,

BGP is, in short, may realize the telecom, netcom, connectivity, so whether a room is really BGP room, first to see whether the rooms have belongs to own the AS number, want to know if this is a room is BGP room the only real proof,