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    Mechanism for optimized customer MAC address flushing in PBB-EVPN
    1.
    发明授权
    Mechanism for optimized customer MAC address flushing in PBB-EVPN 有权

    公开(公告)号：US10367783B2

    公开(公告)日：2019-07-30

    申请号：US15795605

    申请日：2017-10-27

    Applicant: Cisco Technology, Inc.

    Inventor： Ali Sajassi ,  Jose A. Liste ,  Patrice Brissette ,  Mei Zhang ,  Vi Vu

    IPC: H04L29/12

    Abstract: Systems, methods, and computer-readable media for flushing of Customer Media Access Control (C-MAC) addresses in a PBB-EVPN network are disclosed. A first provider edge (PE) device can maintain a plurality of service instances configured on a first interface. The first PE device can detect at least one failed ethernet virtual circuit (EVC) on the first interface and identify at least one service instance from the plurality of service instances that is associated with the at least one failed EVC. The PE device can send, to a second PE device, a C-MAC flush notification message that identifies the at least one service instance and the message can cause the second PE device to remove C-MAC addresses corresponding to the at least one service instance and the B-MAC address for the first interface.

    FAST CONVERGENCE FOR FAILURES OF LARGE SCALE VIRTUAL ETHERNET SEGMENTS IN EVPN AND PBB-EVPN
    2.
    发明申请
    FAST CONVERGENCE FOR FAILURES OF LARGE SCALE VIRTUAL ETHERNET SEGMENTS IN EVPN AND PBB-EVPN 有权

    公开(公告)号：US20180052738A1

    公开(公告)日：2018-02-22

    申请号：US15795871

    申请日：2017-10-27

    Applicant: Cisco Technology, Inc.

    Inventor： Ali Sajassi ,  Jose A. Liste ,  Patrice Brissette ,  Mei Zhang ,  Vi Vu

    IPC: G06F11/14 ,  H04L12/703 ,  H04L12/707 ,  H04L12/741

    CPC classification number: G06F11/1423 ,  H04L45/22 ,  H04L45/28 ,  H04L45/745

    Abstract: Systems, methods, and computer-readable media for fast convergence for virtual ethernet segments in EVPN and PBB-EVPN networks are disclosed. A first provider edge (PE) device can receive one or more advertising messages corresponding to one or more virtual ethernet segments, wherein each of the one or more advertising messages can include a port identifier. The first PE device maintains a table including the one or more virtual ethernet segments and the corresponding port identifier. The first PE device can receive a failure message from a second PE device that identifies a first port on the second PE device, and identifies, based on the table, at least one affected virtual ethernet segment that is associated with the first port. The first PE device can remove any routes that are associated with the at least one affected virtual ethernet segment and trigger mass designated-forwarding election for impacted virtual ethernet segments.

    METHOD AND SYSTEM FOR NETWORK TRAFFIC DIVERSION
    4.
    发明申请
    METHOD AND SYSTEM FOR NETWORK TRAFFIC DIVERSION 有权

    公开(公告)号：US20220210051A1

    公开(公告)日：2022-06-30

    申请号：US17699237

    申请日：2022-03-21

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Patrice Brissette ,  Luc Andre Burdet ,  Jiri Chaloupka ,  Mei Zhang ,  Tarek Saad

    IPC: H04L45/00 ,  H04L45/50 ,  H04L45/28

    Abstract: A method, network device, and computer program product for network traffic diversion are disclosed. In one embodiment, a method according to the present disclosure includes receiving a frame at a core edge node that is a member of a redundancy group (where the frame comprises network address information and a packet), and determining whether a link (to which the core edge node is communicatively coupled) is affected by a network failure. The frame was sourced by a remote core edge node that is not a member of the redundancy group, and the network address information indicates that the packet is to be forwarded via the link. In response to the link being affected by the network failure, the method further includes generating a modified frame and forwarding the modified frame to another core edge node. The generating comprises including a redirect label in the modified frame. The another core edge node is another member of the redundancy group.

    METHOD AND SYSTEM FOR NETWORK TRAFFIC DIVERSION
    5.
    发明申请
    METHOD AND SYSTEM FOR NETWORK TRAFFIC DIVERSION 有权

    公开(公告)号：US20210152464A1

    公开(公告)日：2021-05-20

    申请号：US16686896

    申请日：2019-11-18

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Patrice Brissette ,  Luc Andre Burdet ,  Jiri Chaloupka ,  Mei Zhang ,  Tarek Saad

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

    Abstract: A method, network device, and computer program product for network traffic diversion are disclosed. In one embodiment, a method according to the present disclosure includes receiving a frame at a core edge node that is a member of a redundancy group (where the frame comprises network address information and a packet), and determining whether a link (to which the core edge node is communicatively coupled) is affected by a network failure. The frame was sourced by a remote core edge node that is not a member of the redundancy group, and the network address information indicates that the packet is to be forwarded via the link. In response to the link being affected by the network failure, the method further includes generating a modified frame and forwarding the modified frame to another core edge node. The generating comprises including a redirect label in the modified frame. The another core edge node is another member of the redundancy group.

    FAST CONVERGENCE FOR FAILURES OF LARGE SCALE VIRTUAL ETHERNET SEGMENTS IN EVPN AND PBB-EVPN
    6.
    发明申请
    FAST CONVERGENCE FOR FAILURES OF LARGE SCALE VIRTUAL ETHERNET SEGMENTS IN EVPN AND PBB-EVPN 审中-公开

    公开(公告)号：US20200004635A1

    公开(公告)日：2020-01-02

    申请号：US16567953

    申请日：2019-09-11

    Applicant: Cisco Technology, Inc.

    Inventor： Ali Sajassi ,  Jose A. Liste ,  Patrice Brissette ,  Mei Zhang ,  Vi Vu

    IPC: G06F11/14 ,  H04L12/741 ,  H04L12/703 ,  H04L12/707

    Abstract: Systems, methods, and computer-readable media for fast convergence for virtual ethernet segments in EVPN and PBB-EVPN networks are disclosed. A first provider edge (PE) device can receive one or more advertising messages corresponding to one or more virtual ethernet segments, wherein each of the one or more advertising messages can include a port identifier. The first PE device maintains a table including the one or more virtual ethernet segments and the corresponding port identifier. The first PE device can receive a failure message from a second PE device that identifies a first port on the second PE device, and identifies, based on the table, at least one affected virtual ethernet segment that is associated with the first port. The first PE device can remove any routes that are associated with the at least one affected virtual ethernet segment and trigger mass designated-forwarding election for impacted virtual ethernet segments.

    Fast convergence for failures of large scale virtual ethernet segments in EVPN and PBB-EVPN
    7.
    发明授权
    Fast convergence for failures of large scale virtual ethernet segments in EVPN and PBB-EVPN 有权

    公开(公告)号：US09858150B2

    公开(公告)日：2018-01-02

    申请号：US14750311

    申请日：2015-06-25

    Applicant: Cisco Technology, Inc.

    Inventor： Ali Sajassi ,  Jose A. Liste ,  Patrice Brissette ,  Mei Zhang ,  Vi Vu

    IPC: H04W72/04 ,  G06F11/14 ,  H04L12/707 ,  H04L12/741 ,  H04L12/703

    CPC classification number: G06F11/1423 ,  H04L45/22 ,  H04L45/28 ,  H04L45/745

    Abstract: Systems, methods, and computer-readable media for fast convergence for virtual ethernet segments in EVPN and PBB-EVPN networks are disclosed. A first provider edge (PE) device can receive one or more advertising messages corresponding to one or more virtual ethernet segments, wherein each of the one or more advertising messages can include a port identifier. The first PE device maintains a table including the one or more virtual ethernet segments and the corresponding port identifier. The first PE device can receive a failure message from a second PE device that identifies a first port on the second PE device, and identifies, based on the table, at least one affected virtual ethernet segment that is associated with the first port. The first PE device can remove any routes that are associated with the at least one affected virtual ethernet segment and trigger mass designated-forwarding election for impacted virtual ethernet segments.

    Mechanism for optimized customer MAC address flushing in PBB-EVPN
    8.
    发明授权
    Mechanism for optimized customer MAC address flushing in PBB-EVPN 有权

    公开(公告)号：US09838310B1

    公开(公告)日：2017-12-05

    申请号：US14920727

    申请日：2015-10-22

    Applicant: Cisco Technology, Inc.

    Inventor： Ali Sajassi ,  Jose A. Liste ,  Patrice Brissette ,  Mei Zhang ,  Vi Vu

    IPC: H04L12/56 ,  H04L12/721 ,  H04L29/12

    CPC classification number: H04L61/6022

    Abstract: Systems, methods, and computer-readable media for flushing of Customer Media Access Control (C-MAC) addresses in a PBB-EVPN network are disclosed. A first provider edge (PE) device can maintain a plurality of service instances configured on a first interface. The first PE device can detect at least one failed ethernet virtual circuit (EVC) on the first interface and identify at least one service instance from the plurality of service instances that is associated with the at least one failed EVC. The PE device can send, to a second PE device, a C-MAC flush notification message that identifies the at least one service instance and the message can cause the second PE device to remove C-MAC addresses corresponding to the at least one service instance and the B-MAC address for the first interface.

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