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| 20130312224 | HOOK - A hook for manipulation of lines, the hook comprising an aduncate body, the body defining an opening between at least two portions thereof, the body further comprising a first shaped opening including an entry of a first dimension and an enlarged portion of a second dimension, wherein the second dimension is larger than the first dimension, a second shaped opening including an entry of a first dimension and an enlarged portion of a second dimension, wherein the second dimension is larger than the first dimension, the respective entries to the first and second shaped openings oriented in different directions, the hook further comprising a shuttle including a first retention pin, a second retention pin and a spacing body to space the first retention pin and the second retention pin from one another, the first retention pin shaped to pass the entry of the first shaped opening when oriented in a first position and to be prevented passage when not in the first position and the second retention pin shaped to pass the entry of the second shaped opening when oriented in a first position and to be prevented passage when not in the first position. | 11-28-2013 |
| 20140132016 | HOOK - A hook for manipulation of lines, the hook comprising an aduncate body, the body defining an opening between at least two portions thereof, the body further comprising a first shaped opening including an entry of a first dimension and an enlarged portion of a second dimension, wherein the second dimension is larger than the first dimension, a second shaped opening including an entry of a first dimension and an enlarged portion of a second dimension, wherein the second dimension is larger than the first dimension, the respective entries to the first and second shaped openings oriented in different directions, the hook further comprising a shuttle including a first retention pin, a second retention pin and a spacing body to space the first retention pin and the second retention pin from one another, the first retention pin shaped to pass the entry of the first shaped opening when oriented in a first position and to be prevented passage when not in the first position and the second retention pin shaped to pass the entry of the second shaped opening when oriented in a first position and to be prevented passage when not in the first position. | 05-15-2014 |
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| 20090201937 | RESILIENT PROVIDER LINK STATE BRIDGING (PLSB) VIRTUAL PRIVATE LAN SERVICE (VPLS) INTERWORKING - A method of peer interfacing a Link-State controlled network domain with an Ethernet Bridging controlled network domain. A pair of peer attachment points are provided between the Link-State controlled network domain and the Ethernet Bridging domain. The peer attachment points are respective endpoints of a set of one or more LAN segments defined within the Ethernet Bridging domain. The set of LAN segments are represented as a virtual node in the Link-State controlled network domain. The virtual node is represented in the Link-State controlled network domain as connected to each of the peer attachment points via a respective virtual link. The virtual links are configured such that frames to or from an address in the Link-State controlled network domain are forwarded over a tree passing through only one of the peer attachments points. | 08-13-2009 |
| 20100157844 | RESILIENT ATTACHMENT TO PROVIDER LINK STATE BRIDGING (PLSB) NETWORKS - A method system for interfacing a client system in a first network domain with a Provider Link State Bridging (PLSB) network domain. At least two Backbone Edge Bridges (BEBs) of the PLSB domain | 06-24-2010 |
| 20120195319 | SEPARATE ETHERNET FORWARDING AND CONTROL PLANE SYSTEMS AND METHODS WITH INTERIOR GATEWAY ROUTE REFLECTOR FOR A LINK STATE ROUTING SYSTEM - The present disclosure provides a separate Ethernet forwarding and control plane system, method, network, and architecture with a Link State Interior Gateway route reflector for the control plan system and a layer two network architecture for the forwarding system. The present invention optionally utilizes a cloud implementation for the Designated Router (DR) or designated peering node reducing peering requirements and distributing the functionality. Through the architecture of the present invention, the Provider router is obviated by the application of layer two switches and servers. Such an architecture provides improved scaling, performance, and cost reduction. | 08-02-2012 |
| 20130215749 | RESILIENT ATTACHMENT TO PROVIDER LINK STATE BRIDGING (PLSB) NETWORKS - A system for interfacing a client system in a first network domain with a Provider Link State Bridging (PLSB) domain includes at least two Backbone Edge Bridges (BEBs) of the PLSB domain. Each BEB is an end-point of a connection in the first network domain to the client system and an end-point of at least a unicast path in the PLSB domain. An inter-node trunk is provided in the PLSB domain for interconnecting the BEBs. A phantom node is defined in the PLSB domain and is notionally located on the inter-node trunk. Each of the BEBs is configured such that: an ingress packet received from the client system via the connection in the first network domain is forwarded through a path notionally rooted at the phantom node; and an egress packet destined for the client system is forwarded to the client system through the connection in the first network domain. | 08-22-2013 |
| 20140092748 | RESILIENT PROVIDER LINK STATE BRIDGING (PLSB) VIRTUAL PRIVATE LAN SERVICE (VPLS) INTERWORKING - A method of peer interfacing a Link-State controlled network domain with an Ethernet Bridging controlled network domain. A pair of peer attachment points are provided between the Link-State controlled network domain and the Ethernet Bridging domain. The peer attachment points are respective endpoints of a set of one or more LAN segments defined within the Ethernet Bridging domain. The set of LAN segments are represented as a virtual node in the Link-State controlled network domain. The virtual node is represented in the Link-State controlled network domain as connected to each of the peer attachment points via a respective virtual link. The virtual links are configured such that frames to or from an address in the Link-State controlled network domain are forwarded over a tree passing through only one of the peer attachments points. | 04-03-2014 |
| 20140177433 | RESILIENT ATTACHMENT TO PROVIDER LINK STATE BRIDGING (PLSB) NETWORKS - A system for interfacing a client system in a first network domain with a Provider Link State Bridging (PLSB) domain includes at least two Backbone Edge Bridges (BEBs) of the PLSB domain. Each BEB is an end-point of a connection in the first network domain to the client system and an end-point of at least a unicast path in the PLSB domain. An inter-node trunk is provided in the PLSB domain for interconnecting the BEBs. A phantom node is defined in the PLSB domain and is notionally located on the inter-node trunk. Each of the BEBs is configured such that: an ingress packet received from the client system via the connection in the first network domain is forwarded through a path notionally rooted at the phantom node; and an egress packet destined for the client system is forwarded to the client system through the connection in the first network domain. | 06-26-2014 |
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| 20120076014 | METHOD AND APPARATUS FOR TRAFFIC ENGINEERING IN SHORTEST PATH BRIDGED NETWORKS - A method and apparatus for diverting traffic in a communications network are disclosed. According to one aspect, the invention provides a communications network with a first node and a second node. Connecting these two nodes is a first set of intermediate nodes on a first path (the true shortest path) and a second set of intermediate nodes on a second alternate path. At a first node, a first processor determines whether a packet arriving at the first node must transit the second node. If so, the base virtual local area network (VLAN) identifier (VID) of the packet is replaced by a first VID, and the packet is transmitted along the second path through the second set of intermediate nodes to the second node. At the second node, a second processor determines whether a packet arriving at the second node must transit the first node. If so, the base VID of the packet is replaced by a second VID different from the first VID and different from the base VID, and the packet is transmitted along the second path through the second set of intermediate nodes to the first node. | 03-29-2012 |
| 20140126422 | RESILIENT INTERWORKING OF SHORTEST PATH BRIDGING AND ETHERNET VIRTUAL PRIVATE NETWORKS - An Ethernet network, an Ethernet method, and an Ethernet node provide active-active dual-homed interworking between two Ethernet networks. The network, method, and node can include two nodes interconnected each to a Shortest Path Bridging (SPB) network and an Ethernet Virtual Private Network (E-VPN). The two nodes can utilize a same Ethernet Segment Identifier (ESI) for the E-VPN network to cause the dual-homed links to appear as a single link from an E-VPN perspective and a dummy node to advertise an extra node in the SPB network enabling two paths therein. | 05-08-2014 |
| 20140177637 | REDUCED COMPLEXITY MULTIPROTOCOL LABEL SWITCHING - A reduced complexity Multiprotocol Label Switching (MPLS) method, a MPLS network element, and a MPLS network utilize an MPLS operating regime whereby disjoint sets of one or more MPLS labels are uniquely and specifically associated with just one switch, i.e. each switch node is assigned one or more non-overlapping labels from the RFC 3032 20 bit label space to bind to particular service end-points; which then enables these labels to embody the core properties of a destination address (DA) in the network sub-domain in which they are used. The central property is that these DA labels are constant for a given forwarding path across the entire sub-domain, remaining unchanged at any point in the network. Once that is achieved, any and all hop-by-hop signaling protocols are unnecessary, since there is no need for label swapping, and the label-switching-node binding information can be flooded by interior routing protocols only. | 06-26-2014 |
| 20140177638 | SOURCE IDENTIFICATION PRESERVATION IN MULTIPROTOCOL LABEL SWITCHING NETWORKS - A Multiprotocol Label Switching (MPLS) method, a MPLS network element, and a MPLS network include receiving a packet destined for a destination node at a source node in an MPLS network; pushing an identifier in an MPLS label on an MPLS label stack associated with the packet, wherein the identifier denotes the source node as the source of the packet and is pushed prior to any other MPLS labels on the MPLS stack; pushing one or more labels on the MPLS stack indicative of a route of the packet to the destination node; and transmitting the packet from the source node into the MPLS network. The identifier is located at the bottom of the MPLS stack thereby being a last item popped in the MPLS stack at the destination node, and the identifier can be used for updating OAM data efficiently without requiring deep packet inspection. | 06-26-2014 |
| 20150288602 | SOURCE IDENTIFICATION PRESERVATION IN MULTIPROTOCOL LABEL SWITCHING NETWORKS - A source Multiprotocol Label Switching (MPLS) network element, a destination MPLS network element, and a MPLS method are disclosed which introduce the concept of a source label into the MPLS label stack for source identification preservation. The source label can located at the bottom of the label stack thereby being a last item popped in the MPLS stack at the destination node, or indicated subsequent to an explicit reserved label identifier. The source label is used for maintaining Operations, Administration, and Maintenance (OAM) data efficiently without requiring deep packet inspection. | 10-08-2015 |
| 20160087882 | HEADER SPACE ANALYSIS EXTENSION SYSTEMS AND METHODS FOR TRANSPORT NETWORKS - A method for validation of a packet transport network includes performing a header space analysis, with input headers to obtain output headers from the header space analysis, between one or more ingress points and a particular egress point; determining disjointness of the output headers; and determining validity of a point-to-point connection property of the packet transport network based on the disjointness of the output headers. The header space analysis allows near-real-time validation that packet transport flows in an Multiprotocol Label Switching-Transport Profile (MPLS-TP) network have been correctly programmed on the switches by a Software Defined Networking (SDN) controller or other technique such that the correct label mappings have been made to carry a flow from a source to a destination, and all flows from any source to a destination are isolated from one another. | 03-24-2016 |
