Recovery in connection-oriented network

A node for a connection-oriented network, wherein the network being arranged to recover from failure of a working path for communications traffic in the network, wherein the working path has a preplanned recovery path, the node comprising:

• a recovery control part configured to initiate recovery in the connection-oriented network in response to the failure by requesting computation of a new recovery path for the communications traffic to avoid the failure;
• and
• a timer configured to determine if the recovery is not successful within a time limit, wherein the recovery control part is configured to respond to an output from the timer to initiate recovery in the connection-oriented network using the preplanned recovery path,
• wherein the node is configured to interact with one or more other nodes of the connection-oriented network.

A centralised recovery management part for a connection-oriented network, the network being arranged to recover from failure of a working path for communications traffic in the network, wherein the working path has a preplanned recovery path, and the centralised recovery management part comprising:

• a centralised control part configured to initiate a recovery in the connection-oriented network in response to the failure by carrying out a computation of the new recovery path to avoid the failure;
• and
• a centralised timer part to determine if the recovery is not successful within a time limit, wherein the centralised control part is configured to respond to an output from the centralised timer to initiate the recovery in the connection-oriented network using the preplanned recovery path,
• wherein the centralised recovery management part is configured to interact with one or more nodes of the connection-oriented network.

A nontransitory computer readable medium comprising a computer program comprising machine-readable instructions which when executed by a processor cause the processor to perform a method of recovering from failure of a working path for communications traffic in a connection-oriented network, wherein the working path has a preplanned recovery path, the method comprising:

• initiating recovery in response to the failure by requesting computation of a new recovery path for the communications traffic to avoid the failure;
• and
• determining if the recovery is not successful within a time limit, and then initiating recovery using the pre-planned recovery path,
• wherein the processor is part of a node in the connection-oriented network or part of a centralised recovery management part.