Abstract: Faults are detected and recovered from in a multiprotocol label switching (MPLS) network by communicating packets between a first node and a second node in the MPLS network using a set of prioritized label switch path (LSP) pairs. A failure to receive a relatively constant rate of packets during a predetermined time interval is detected at the first node. Packets are sent from the first node to the second node using a backup LSP pair responsive to detecting the failure. Packets are then sent from the second node to the first node using a backup LSP pair responsive to receiving packets at the second node on the backup LSP pair.

Abstract: Methods, devices and computer program products for self partitioning a data network are provided. A network device that is using an address of another network device is identified, the network is automatically partitioned to eliminate the potential conflict, and address conflict resolution is initiated. Partitioning the network may include closing a port over which the routing packet was received from the network device that advertised the conflict, or may include closing the logical connection to that network device. A routing database may be cleared of information previously received from the network device that advertised the conflict so that no routes exist through that device any more. Conflict resolution may include assigning a different address to the network device identified as having a conflicting address, and then allowing the identified network device to communicate with other network devices using the newly assigned address.

Abstract: A packet is classified by associating a network layer address with a service, obtaining the data link layer address for that network layer address, and associating a packet with that service if the data link layer destination address associated with the packet matches the data link layer address associated with the service.

Abstract: Methods, devices and computer program products for self partitioning a data network are provided. A network device that is using an address of another network device is identified, the network is automatically partitioned to eliminate the potential conflict, and address conflict resolution is initiated. Partitioning the network may include closing a port over which the routing packet was received from the network device that advertised the conflict, or may include closing the logical connection to that network device. A routing database may be cleared of information previously received from the network device that advertised the conflict so that no routes exist through that device any more. Conflict resolution may include assigning a different address to the network device identified as having a conflicting address, and then allowing the identified network device to communicate with other network devices using the newly assigned address.

Abstract: Faults are detected and recovered from in a multiprotocol label switching (MPLS) network by communicating packets between a first node and a second node in the MPLS network using a set of prioritized label switch path (LSP) pairs. A failure to receive a relatively constant rate of packets during a predetermined time interval is detected at the first node. Packets are sent from the first node to the second node using a backup LSP pair responsive to detecting the failure. Packets are then sent from the second node to the first node using a backup LSP pair responsive to receiving packets at the second node on the backup LSP pair.

Abstract: A packet is classified by associating a network layer address with a service, obtaining the data link layer address for that network layer address, and associating a packet with that service if the data link layer destination address associated with the packet matches the data link layer address associated with the service.