A method for reconfiguring a communication network is provided. A first network uses a first network protocol and a second network uses a second network protocol, the two networks being connected by two data links. A first data link is initialized as activated and a second data link is initialized as deactivated. A failure of the first data link is detected by a first bridge of the second network, the first bridge being connected to the first data link. A first data packet is generated by the first bridge and is transmitted to a second bridge of the second network, the second bridge being connected to the second data link. The first data packet is received and processed by the second bridge. The first data packet contains information which initiates a partial implementation of the first network protocol on a port of the second bridge and an activation of the second data link.