| 摘要 |
Embodiments of the present invention provide a method, an apparatus and a system for transmitting information. The method for transmitting information includes: a controller determines a work path and a protection path, where the work path corresponds to a first tag, and the protection path corresponds to a second tag; the controller transmits first information to a first apparatus to instruct the first apparatus to transmit, according to the first information, a second message and a fourth message to a second apparatus via the work path and the protection path respectively, where the second message is generated by pushing the first tag into a first message, the fourth message is generated by pushing the second tag into a third message, and the first message is the same as the third message; the controller transmits second information to the second apparatus to instruct the second apparatus to receive the second message via the work path according to the second information, drop the fourth message received from the protection path, and output the first message in further. |
