Abstract: A u-turn fast rerouting capability is provided. A first node propagates a packet toward a second node based on selection of a first routing path for routing the packet from the first node toward an intended destination node. The second node received the packet, determines that the packet cannot be delivered to the destination node via the first routing path, inserts a u-turn label into the packet, and returns the packet to the first node. The u-turn label indicates that the packet is being returned to the first node by the second node due to a condition preventing propagation of the packet toward the destination node using the first routing path. The first node receives the packet including the u-turn label, selects a second routing path for routing the packet toward the destination node, and propagates the packet toward the destination node based on the second routing path.

Abstract: Systems, methods, architectures and/or apparatus for implementing Multi-Segment Pseudo Wire (MS-PW) arrangements in an efficient and scalable manner.

Abstract: A system, method and apparatus for enabling validation of packets received from a label switched router (LSR) via a label switched path (LSP) wherein an LSR assigning LSP label/FEC bindings further associates a respective epoch label with each binding, the advertised bindings and associated epoch labels being included within transmitted packets to enable verification of received packets by matching included Epoch label to the Epoch label originally associated with the packet LSP label.

Abstract: Systems, methods, architectures and/or apparatus for implementing Multi-Segment Pseudo Wire (MS-PW) arrangements in an efficient and scalable manner.

Abstract: A method and apparatus for generating an IPv6 compliant label distribution protocol (LDP) control plane packet at a Label Switched Router (LSR).

Abstract: A system, method and apparatus for enabling validation of packets received from a label switched router (LSR) via a label switched path (LSP) wherein an LSR assigning LSP label/FEC bindings further associates a respective epoch label with each binding, the advertised bindings and associated epoch labels being included within transmitted packets to enable verification of received packets by matching included Epoch label to the Epoch label originally associated with the packet LSP label.

Abstract: A method and apparatus for implementing multiple Label Distribution Protocol (LDP) Label Switch Router (LSR) instances sharing a common data plane at a network element or node.

Abstract: Systems, methods, architectures and/or apparatus for implementing Multi-Segment Pseudo Wire (MS-PW) arrangements in an efficient and scalable manner.

Abstract: A system, method and apparatus for controlling traffic forwarding at a label switched router (LSR) to implement thereby a constrained traffic forwarding application, such as a data plane fate separation between different FEC types.

Abstract: A method and apparatus for implementing multiple Label Distribution Protocol (LDP) Label Switch Router (LSR) instances sharing a common data plane at a network element or node.

Abstract: A method and apparatus for implementing Label Information Base (LIB) overload protection for a respective Forwarding Equivalency Class (FEC) type associated with a Label Switched Path (LSP).

Abstract: Systems, methods, architectures and/or apparatus for implementing Multi-Segment Pseudo Wire (MS-PW) arrangements in an efficient and scalable manner.

Abstract: Embodiments of the invention are directed to extended psuedowire groups in a packet switched network. Embodiments associate a pseudowire to one or more groups at each provider edge device across which the pseudowire traverses. When a pseudowire set-up request message traverses across various provider edge devices, each provider edge device typically adds one or more local group membership information elements into the pseudowire set-up request message. In that way the grouping assigned by each provider edge device that the pseudowire traverses is made available to all other provider edge devices traversed by the pseudowire. Advantageously, this availability pseudowire grouping information allows any of these provider edge devices to initiate a wildcard message to notify other provider edge devices with respect to pseudowires in any of its local groups, as well as allowing a pseudowire to be bound to multiple groups based on various requirements.

Abstract: A method and apparatus for implementing Label Information Base (LIB) overload protection for a respective Forwarding Equivalency Class (FEC) type associated with a Label Switched Path (LSP).

Abstract: A method and apparatus for generating an IPv6 compliant label distribution protocol (LDP) control plane packet at a Label Switched Router (LSR).

Abstract: A system, method and apparatus for controlling traffic forwarding at a label switched router (LSR) to implement thereby a constrained traffic forwarding application, such as a data plane fate separation between different FEC types.

Abstract: A method and apparatus for implementing multiple Label Distribution Protocol (LDP) Label Switch Router (LSR) instances sharing a common data plane at a network element or node.

Abstract: Embodiments of the invention are directed to extended psuedowire groups in a packet switched network. Embodiments associate a pseudowire to one or more groups at each provider edge device across which the pseudowire traverses. When a pseudowire set-up request message traverses across various provider edge devices, each provider edge device typically adds one or more local group membership information elements into the pseudowire set-up request message. In that way the grouping assigned by each provider edge device that the pseudowire traverses is made available to all other provider edge devices traversed by the pseudowire. Advantageously, this availability pseudowire grouping information allows any of these provider edge devices to initiate a wildcard message to notify other provider edge devices with respect to pseudowires in any of its local groups, as well as allowing a pseudowire to be bound to multiple groups based on various requirements.

Abstract: Embodiments of the invention are directed to extended pseudowire groups in a packet switched network. Embodiments associate a pseudowire to one or more groups at each provider edge device across which the pseudowire traverses. When a pseudowire set-up request message traverses across various provider edge devices, each provider edge device typically adds one or more local group membership information elements into the pseudowire set-up request message. In that way the grouping assigned by each provider edge device that the pseudowire traverses is made available to all other provider edge devices traversed by the pseudowire. Advantageously, this availability pseudowire grouping information allows any of these provider edge devices to initiate a wildcard message to notify other provider edge devices with respect to pseudowires in any of its local groups, as well as allowing a pseudowire to be bound to multiple groups based on various requirements.

Abstract: Embodiments of the invention are directed to extended psuedowire groups in a packet switched network. Embodiments associate a pseudowire to one or more groups at each provider edge device across which the pseudowire traverses. When a pseudowire set-up request message traverses across various provider edge devices, each provider edge device typically adds one or more local group membership information elements into the pseudowire set-up request message. In that way the grouping assigned by each provider edge device that the pseudowire traverses is made available to all other provider edge devices traversed by the pseudowire. Advantageously, this availability pseudowire grouping information allows any of these provider edge devices to initiate a wildcard message to notify other provider edge devices with respect to pseudowires in any of its local groups, as well as allowing a pseudowire to be bound to multiple groups based on various requirements.