Abstract: A system for data communication networks and a method for data communication networks, the data communication network including a label switch path, the method comprising the steps of providing a list including a plurality of entries, wherein each entry includes a wavelength that can be used by the label switch path for recovery procedures.

Abstract: 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.

Abstract: A method of reconfiguring a communications network is provided. A first network using a first network protocol and a second network using a second network protocol are connected by a master data link initialized as activated and two slave data links initialized as inactivated. A failure of the master data link or a slave data link is detected by a master bridge of the second network, the master bridge being connected to the master data link. A first data packet is generated by the master bridge and is transmitted to a slave bridge of the second network, the slave bridge being connected to a slave data link. The slave bridge is selected by the master bridge according to a selection rule. The first data packet contains information which initiates a partial execution of the first network protocol on a port of the slave bridge and an activation of the slave data link by the first network protocol.

Abstract: A method for reconfiguring a packet-switched communication network using a network protocol for installing a logic topology of the network formed as a spanning tree is disclosed. The method includes detecting failure of a direct link to a root bridge of the spanning tree by a first bridge; detecting the failure of a direct link to the root bridge by a second bridge; transmitting a first configuration frame generated by the first bridge to other bridges; receiving the first configuration frame by a third bridge and transmitting a second configuration frame, generated by the third bridge, to the other bridges; detecting the first or second configuration frame by the second bridge and transmitting the third configuration frame generated by the second bridge to the other bridges; receiving the third configuration frame by the other bridges of the network and triggering a reconfiguration of the network with detection of a new spanning tree by the network protocol.

Abstract: 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.

Abstract: A method of reconfiguring a communications network is provided. A first network using a first network protocol and a second network using a second network protocol are connected by a master data link initialized as activated and two slave data links initialized as inactivated. A failure of the master data link or a slave data link is detected by a master bridge of the second network, the master bridge being connected to the master data link. A first data packet is generated by the master bridge and is transmitted to a slave bridge of the second network, the slave bridge being connected to a slave data link. The slave bridge is selected by the master bridge according to a selection rule. The first data packet contains information which initiates a partial execution of the first network protocol on a port of the slave bridge and an activation of the slave data link by the first network protocol.

Abstract: A method for reconfiguring a packet-switched communication network using a network protocol for installing a logic topology of the network formed as a spanning tree is disclosed. The method includes detecting failure of a direct link to a root bridge of the spanning tree by a first bridge; detecting the failure of a direct link to the root bridge by a second bridge; transmitting a first configuration frame generated by the first bridge to other bridges; receiving the first configuration frame by a third bridge and transmitting a second configuration frame, generated by the third bridge, to the other bridges; detecting the first or second configuration frame by the second bridge and transmitting the third configuration frame generated by the second bridge to the other bridges; receiving the third configuration frame by the other bridges of the network and triggering a reconfiguration of the network with detection of a new spanning tree by the network protocol.