Abstract: Routing data in a bi-directional communication session over an overlay network is described. One-way performance measurements are determined for routing data in the communication session in a first direction from a first node to a second node via a respective plurality of relay nodes of the overlay network. Based on the performance measurements, relay node(s) are selected for use in routing data in the first direction from first node to second node. Data is routed in the communication session from the first node to the second node over the overlay network via the selected relay node(s). The selection of the relay node(s) for use in routing data in the first direction is performed separately to selection of one or more relay node for use in routing data in a second direction from the second node to the first node in the communication session.

Abstract: Routing data in a bi-directional communication session over an overlay network is described. One-way performance measurements are determined for routing data in the communication session in a first direction from a first node to a second node via a respective plurality of relay nodes of the overlay network. Based on the performance measurements, relay node(s) are selected for use in routing data in the first direction from first node to second node. Data is routed in the communication session from the first node to the second node over the overlay network via the selected relay node(s). The selection of the relay node(s) for use in routing data in the first direction is performed separately to selection of one or more relay node for use in routing data in a second direction from the second node to the first node in the communication session.

Abstract: The present invention provides a protection protocol for fault recovery, such as a ring wrap, for a network, such as a two line bi-directional ring network. An embodiment of the present invention works in conjunction with a ring topology network in which a node in the network can identify a problem with a connection between the node and a first neighbor. The present invention provides 1 protection protocol which simplifies the coordination required by the nodes in a ring network. The nodes do not need to maintain a topology map of the ring, identifying and locating each node on the ring, for effective protection. Additionally, independently operating ring networks can be merged and the protection protocol will appropriately remove a protection, such as a ring wrap, to allow the formation of a single ring.

Abstract: The present invention provides a protection protocol for fault recovery, such as a ring wrap, for a network, such as a two line bi-directional ring network. An embodiment of the present invention works in conjunction with a ring topology network in which a node in the network can identify a problem with a connection between the node and a first neighbor. The present invention provides a protection protocol which simplifies the coordination required by the nodes in a ring network. The nodes do not need to maintain a topology map of the ring, identifying and locating each node on the ring, for effective protection. Additionally, independently operating ring networks can be merged and the protection protocol will appropriately remove a protection, such as a ring wrap, to allow the formation of a single ring.

Abstract: The present invention provides a protection protocol for fault recovery, such as a ring wrap, for a network, such as a two line bidirectional ring network. An embodiment of the present invention works in conjunction with a ring topology network in which a node in the network can identify a problem with a connection between the node and a first neighbor. The present invention provides a protection protocol which simplifies the coordination required by the nodes in a ring network. The nodes do not need to maintain a topology map of the ring, identifying and locating each node on the ring, for effective protection. Additionally, independently operating ring networks can be merged and the protection protocol will appropriately remove a protection, such as a ring wrap, to allow the formation of a single ring.

Abstract: The present invention provides a protection protocol for fault recovery, such as a ring wrap, for a network, such as a two line bi-directional ring network. An embodiment of the present invention works in conjunction with a ring topology network in which a node in the network can identify a problem with a connection between the node and a first neighbor. The present invention provides a protection protocol which simplifies the coordination required by the nodes in a ring network. The nodes do not need to maintain a topology map of the ring, identifying and locating each node on the ring, for effective protection. Additionally, independently operating ring networks can be merged and the protection protocol will appropriately remove a protection, such as a ring wrap, to allow the formation of a single ring.