Abstract: In one embodiment, a network interruption may be determined to have occurred at an active node of a communication system, wherein the active node may be facilitating a first communication dialog between a first end point and a second end point. In response to the network interruption, a stateful switchover can be initiated between the active node and a standby node of the communication system. A reroute message may be transmitted to the first end point and the second end point, wherein the reroute message can instruct the first end point and the second end point to cease use of the first communication dialog and begin use of a second communication dialog, wherein the second communication dialog may be facilitated by the standby node.

Abstract: In one embodiment, a network interruption may be determined to have occurred at an active node of a communication system, wherein the active node may be facilitating a first communication dialog between a first end point and a second end point. In response to the network interruption, a stateful switchover can be initiated between the active node and a standby node of the communication system. A reroute message may be transmitted to the first end point and the second end point, wherein the reroute message can instruct the first end point and the second end point to cease use of the first communication dialog and begin use of a second communication dialog, wherein the second communication dialog may be facilitated by the standby node.

Abstract: A method and apparatus control a double-ended soft permanent virtual circuit (SPVC) connection coupling from a source end to a destination end via a communications network. The method includes (a) receiving an SPVC connection message from a first network device for the source end, (b) accepting an SPVC connection in accordance with the SPVC connection message if a second network device receiving the SPVC connection has an association with the first network device, and (c) rejecting the SPVC connection if the second network device does not have an association with the first network device. The network device for the destination end includes a database memory adapted to store an access identifier of at least one predetermined source network device from which the network device is allowed to accept an SPVC connection.

Abstract: A method and apparatus control a double-ended soft permanent virtual circuit (SPVC) connection coupling from a source end to a destination end via a communications network. The method includes (a) receiving an SPVC connection message from a first network device for the source end, (b) accepting an SPVC connection in accordance with the SPVC connection message if a second network device receiving the SPVC connection has an association with the first network device, and (c) rejecting the SPVC connection if the second network device does not have an association with the first network device. The network device for the destination end includes a database memory adapted to store an access identifier of at least one predetermined source network device from which the network device is allowed to accept an SPVC connection.

Abstract: A method and apparatus control a double-ended soft permanent virtual circuit (SPVC) connection coupling from a source end to a destination end via a communications network. The method includes (a) receiving an SPVC connection message from a first network device for the source end, (b) accepting an SPVC connection in accordance with the SPVC connection message if a second network device receiving the SPVC connection has an association with the first network device, and (c) rejecting the SPVC connection if the second network device does not have an association with the first network device. The network device for the destination end includes a database memory adapted to store an access identifier of at least one predetermined source network device from which the network device is allowed to accept an SPVC connection.