| 摘要 |
It is disclosed a method for protecting transmission of user data transmitted from a first to a second user network through a transport network. The user data have a maximum transmission rate. The method comprises: in the transport network, in a failure-free status, providing a first and a second path having an overall capacity equal to the maximum transmission rate; transmitting a first portion of user data along the first path, and a second portion of user data along the second path; at a network management server cooperating with the transport network, detecting a failure affecting transmission of the second portion; at the network management server, switching from the failure-free status to a failure status by operating the transport network so as to increase capacity of the first path to the maximum transmission rate; and at the first user network, transmitting the user data along the first path only.
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