The application provides a
router online upgrading
system based on credibility measurement, which is composed of a
network management device and a plurality of routers, the
network management device is used for providing a required credible
software package and remote issuing instruction of the
router, and is internally provided with a credible module; each
router comprises a main control board and a plurality of single boards, and is provided with an independent credible module and a storage device, the main control board is provided with a device
software management module, downloads the credible
software package and performs
software package verification; the software upgrading instruction is issued to each single board, and upgrading results of the single boards are collected and reported; each single board is provided with a single board software management module, and credible software updating and activation of the single board are realized; the credible module is used for credible calculation and
verification; and the storage device is divided into two partitions, a main area in which current software runs and a standby area. The application guarantees high safety and high reliability requirements of online upgrading of the whole
network router, and is suitable for evolution and maintenance demand scene of an endogenous security communication network.