METHOD AND DEVICE FOR BANDWIDTH SELF-ADAPTING DATA RANKING PROTECTION

摘要

A method for bandwidth self-adapting data ranking protection is disclosed by the present invention, and includes: redundancy protection computation is performed for a data block to be transmitted, the redundancy code of said data block is generated, and priority is set for said redundancy code; whether the bandwidth occupied by the redundancy code with the current highest priority is greater than current residual bandwidth is judged; if not, the redundancy code with the current highest priority is born in the current residual bandwidth; if yes, according to the order of the priority from high to low, in the other redundancy codes, redundancy codes whose data amount is less than or equal to the current residual bandwidth are searched for, and the found redundancy code is born in the current residual bandwidth. A device for bandwidth self-adapting data ranking protection is disclosed at the same time by the present invention. The present invention improves the system fault tolerance.