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    LABEL AND ASSOCIATED TRAFFIC BLACK HOLE CORRECTION
    81.
    发明申请
    LABEL AND ASSOCIATED TRAFFIC BLACK HOLE CORRECTION 审中-公开

    公开(公告)号：US20180351787A1

    公开(公告)日：2018-12-06

    申请号：US15608601

    申请日：2017-05-30

    Applicant: Juniper Networks, Inc.

    Inventor： Suresh Kumar Boyapati ,  Devendra Dilip Kulkarni

    IPC: H04L12/24 ,  H04L12/26 ,  H04L12/703

    CPC classification number: H04L45/28 ,  H04L41/0672 ,  H04L45/507

    Abstract: Techniques are described for detecting and correcting mis-programming of label information in a router of a label switched path (LSP) without initially triggering a tear-down of the LSP. For example, techniques described in this disclosure enable an ingress router to determine whether label information is correctly programmed between a routing engine (e.g., control plane) and a forwarding engine (e.g., forwarding plane) of a router in the LSP, and to correct any mis-programming of label information by informing the router to reprogram the forwarding engine with original forwarding label information associated with the LSP.

    INFORMATION PROCESSING APPARATUS AND ROUTE CONTROLLING METHOD
    82.
    发明申请
    INFORMATION PROCESSING APPARATUS AND ROUTE CONTROLLING METHOD 审中-公开

    公开(公告)号：US20180332000A1

    公开(公告)日：2018-11-15

    申请号：US15966580

    申请日：2018-04-30

    Applicant: FUJITSU LIMITED

    Inventor： Kouichirou Ryu ,  Naoya Shimazu

    IPC: H04L29/12 ,  H04L29/14 ,  H04L12/707

    CPC classification number: H04L61/2007 ,  H04L45/22 ,  H04L45/28 ,  H04L69/40 ,  H04L2012/5621

    Abstract: An information processing apparatus includes a memory and one processor configured to allocate a virtual Internet Protocol address to an application, transmit information including a first metric value and the virtual Internet Protocol address to a network apparatus on a first route through which a first packet destined for the virtual Internet Protocol address is transferred; and transmit information including a second metric value and the virtual Internet Protocol address to another network apparatus on a second route through which a second packet destined for the virtual Internet Protocol address is transferred wherein a certain value is to be added to the first metric value in the network apparatus and another certain value is to be added to the second metric value in the other network apparatus.

    Apparatus And Method For Establishing A Repair Path
    84.
    发明申请
    Apparatus And Method For Establishing A Repair Path 审中-公开

    公开(公告)号：US20180302318A1

    公开(公告)日：2018-10-18

    申请号：US16015684

    申请日：2018-06-22

    Applicant: Telefonaktiebolaget LM Ericsson (publ)

    Inventor： Aaron Yi

    IPC: H04L12/703 ,  H04L12/707 ,  H04L12/46 ,  H04L12/723

    CPC classification number: H04L45/28 ,  H04L12/4633 ,  H04L45/22 ,  H04L45/507

    Abstract: A communication network is configured to operate a remote Loop-Free Alternate (LFA) procedure. Prior to detecting a link failure or switchover event associated with a protected link within a current path between a source node and a destination node of the communication network, a Point of Local Repair (PLR) node is configured for the protected link, and a repair tunnel endpoint node is configured for the PLR node. In response to detecting a link failure or switchover event associated with the protected link, a repair path is established between the source node and the destination node. The repair path is routed via the repair tunnel endpoint node, and the route of the repair path excludes the PLR node and the protected link.

    Scalable framework for managing QoS requirements after a switch link failover in a switch fabric network
    86.
    发明授权
    Scalable framework for managing QoS requirements after a switch link failover in a switch fabric network 有权

    公开(公告)号：US10084691B2

    公开(公告)日：2018-09-25

    申请号：US15294352

    申请日：2016-10-14

    Applicant: Oracle International Corporation

    Inventor： Arvind Srinivasan ,  Bjorn Dag Johnsen ,  Shimon Muller

    IPC: H04L12/725 ,  H04L12/703 ,  H04L12/707 ,  H04L12/947

    CPC classification number: H04L45/302 ,  H04L45/22 ,  H04L45/28 ,  H04L49/25

    Abstract: Upon detecting a failure of a switch link in a set of multiple redundant switch links that directly connect two nodes in the switch fabric network, the system performs a failover operation that remaps network traffic associated with the failed switch link to an alternative switch link in the set of multiple redundant switch links. Each node in the switch fabric network maintains a mapping table that translates from logical ports and associated logical virtual lanes to physical ports and associated virtual lanes. The system also provisions switch links with private virtual lanes comprising resources to facilitate failover operations. While remapping the network traffic, the system changes the mapping table so that network traffic, which is presently directed to a physical port and associated virtual lane for the failed switch link, is remapped to an alternative physical port and an associated private virtual lane, for the alternative switch link.

    SYSTEMS AND METHODS FOR MANAGING MULTI-LAYER COMMUNICATION NETWORKS
    89.
    发明申请
    SYSTEMS AND METHODS FOR MANAGING MULTI-LAYER COMMUNICATION NETWORKS 审中-公开

    公开(公告)号：US20180262422A1

    公开(公告)日：2018-09-13

    申请号：US15561069

    申请日：2016-03-31

    Applicant: SEDONASYS SYSTEMS LTD

    Inventor： Ornan Alexander GERSTEL

    IPC: H04L12/703 ,  H04L12/759 ,  H04L12/707

    CPC classification number: H04L45/28 ,  H04L41/0213 ,  H04L41/0668 ,  H04L43/08 ,  H04L45/02 ,  H04L45/028 ,  H04L45/22 ,  H04L45/62 ,  H04L69/16 ,  H04Q2011/0081

    Abstract: A computerized system for performing preparation operations for a maintenance activity that causes a disruption in a communication path of traffic over a multilayer network. The system comprising: a maintenance tool configured to coordinate maintenance activities of the multi-layer network based on maintenance activity-data, a storage unit to store the maintenance activity data; and a multi-layer control system comprising a processor, wherein said processor is configured to: receive from the maintenance tool an indication that one or more maintenance activities are required on an indicated optical resource, determine an affected optical path, determine an affected IP link utilizing said affected optical path; remove traffic from the affected IP link; remove the affected optical path; activate an alternative optical path; configure the packet switching layer to utilize the alternative optical path; and repeat for each alVecied optical path and each affected IP link.

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