利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

26 条记录 (耗时 0.038 秒)

    FAILURE HANDLING FOR ACTIVE-STANDBY REDUNDANCY IN EVPN DATA CENTER INTERCONNECT
    3.
    发明申请
    FAILURE HANDLING FOR ACTIVE-STANDBY REDUNDANCY IN EVPN DATA CENTER INTERCONNECT 审中-公开

    公开(公告)号：US20170288948A1

    公开(公告)日：2017-10-05

    申请号：US15085533

    申请日：2016-03-30

    申请人： Juniper Networks, Inc.

    发明人： Tapraj Singh ,  Wen Lin ,  SelvaKumar Sivaraj ,  Rukesh Dorai ,  Sunesh Rustagi

    IPC分类号： H04L12/24 ,  H04L12/703 ,  H04L12/721 ,  H04L12/723 ,  H04L12/741

    摘要： Techniques are described for avoiding traffic black-holing in a multi-homed Ethernet virtual private networks (EVPNs) in which a customer device (CE) is multi-homed to a plurality of multi-homing provider edge devices (PEs) via respective links of an Ethernet segment. An overlay network is created over the Ethernet segment, and the multi-homing PEs of the EVPN are configured with a common anycast IP address for respective virtual network interfaces. Upon election as active designated forwarder (DF) for the EVPN, the DF PE of the multi-homing PEs advertises toward the customer network an IGP metric for the anycast IP address that is lower than the IGP metric(s) advertised by any of the non-DF standby PE routers segment to direct the CE to forward network packets from the customer network to the DF PE over the respective link of the Ethernet segment.

    OAM MECHANISMS FOR EVPN ACTIVE-ACTIVE SERVICES
    4.
    发明申请
    OAM MECHANISMS FOR EVPN ACTIVE-ACTIVE SERVICES 审中-公开

    公开(公告)号：US20170195199A1

    公开(公告)日：2017-07-06

    申请号：US14984026

    申请日：2015-12-30

    申请人： Juniper Networks, Inc.

    发明人： Rukesh Dorai ,  Tapraj Singh ,  Sunesh Rustagi

    IPC分类号： H04L12/26 ,  H04L12/761 ,  H04L12/46

    CPC分类号： H04L43/0811 ,  H04L12/4641 ,  H04L41/0213 ,  H04L41/0645 ,  H04L41/0663 ,  H04L41/0813 ,  H04L45/16 ,  H04L45/22 ,  H04L45/24 ,  H04L45/28

    摘要： A method and network device to execute an Ethernet Virtual Private Network (EVPN) protocol to configure the network device to participate as one of a plurality of customer edge (CE) routers that provide an active-active configuration for an Ethernet segment coupling the CE routers to a plurality of provider edge (PE) routers, wherein the processor is configured to determine whether a packet that is to be forwarded is an operations, administration, and management (OAM) packet; in response to determining that the packet comprises an OAM packet, replicate the OAM packet for one or more interface links of an Ethernet segment associated with the CE router; configure forwarding instructions to the one or more interface links of the Ethernet segment associated with the CE router; and forward the OAM packet and the replicated OAM packets to the PE routers.

    Designated forwarder election for multi-homed data center interconnect using multicast routing protocol state information
    6.
    发明授权
    Designated forwarder election for multi-homed data center interconnect using multicast routing protocol state information 有权

    公开(公告)号：US09628409B1

    公开(公告)日：2017-04-18

    申请号：US14644683

    申请日：2015-03-11

    申请人： Juniper Networks, Inc.

    发明人： Venkatesan Yuvaraj ,  Sunesh Rustagi ,  Shrinivasa Kini ,  Tapraj Singh ,  Ragupathi J

    IPC分类号： H04L12/931 ,  H04L29/06

    CPC分类号： H04L49/201

    摘要： Techniques are described for supporting designated forwarder election for a multi-homed Ethernet virtual private network (EVPN) data center interconnect (DCI) between multiple data centers by leveraging and utilizing adjacency state information learned from a multicast routing protocol that controls multicast distribution within an underlying transport network of a local data center. For example, a set or routers operating to provide a multi-homed EVPN DCI may utilize adjacency state information learned from a Protocol Independent Multicast (PIM) executing within the underlying transport network of a multi-homed data center to facilitate selection of a designated forwarder for the EVPN between the data centers. By leveraging adjacency state information, an enhanced DF election may be automatically performed for the EVPN to facilitate selection of a designated forwarder in a manner that may avoid loss of traffic in situations where a topology event in the underlying transport network of the data center.

    OAM mechanisms for EVPN active-active services
    7.
    发明授权
    OAM mechanisms for EVPN active-active services 有权

    公开(公告)号：US10862783B2

    公开(公告)日：2020-12-08

    申请号：US16293133

    申请日：2019-03-05

    申请人： Juniper Networks, Inc.

    发明人： Rukesh Dorai ,  Tapraj Singh ,  Sunesh Rustagi

    IPC分类号： H04L12/26 ,  H04L12/24 ,  H04L12/703 ,  H04L12/46 ,  H04L12/707 ,  H04L12/761

    摘要： A method and network device to execute an Ethernet Virtual Private Network (EVPN) protocol to configure the network device to participate as one of a plurality of customer edge (CE) routers that provide an active-active configuration for an Ethernet segment coupling the CE routers to a plurality of provider edge (PE) routers, wherein the processor is configured to determine whether a packet that is to be forwarded is an operations, administration, and management (OAM) packet; in response to determining that the packet comprises an OAM packet, replicate the OAM packet for one or more interface links of an Ethernet segment associated with the CE router; configure forwarding instructions to the one or more interface links of the Ethernet segment associated with the CE router; and forward the OAM packet and the replicated OAM packets to the PE routers.

    FAILURE HANDLING FOR ACTIVE-STANDBY REDUNDANCY IN EVPN DATA CENTER INTERCONNECT
    8.
    发明申请
    FAILURE HANDLING FOR ACTIVE-STANDBY REDUNDANCY IN EVPN DATA CENTER INTERCONNECT 审中-公开

    公开(公告)号：US20200287780A1

    公开(公告)日：2020-09-10

    申请号：US16881507

    申请日：2020-05-22

    申请人： Juniper Networks, Inc.

    发明人： Tapraj Singh ,  Wen Lin ,  SelvaKumar Sivaraj ,  Rukesh Dorai ,  Sunesh Rustagi

    IPC分类号： H04L12/24 ,  H04L12/723 ,  H04L12/741 ,  H04L12/721 ,  H04L12/703 ,  H04L12/46 ,  H04L12/707 ,  H04L12/26

    摘要： Techniques are described for avoiding traffic black-holing in a multi-homed Ethernet virtual private networks (EVPNs) in which a customer device (CE) is multi-homed to a plurality of multi-homing provider edge devices (PEs) via respective links of an Ethernet segment. An overlay network is created over the Ethernet segment, and the multi-homing PEs of the EVPN are configured with a common anycast IP address for respective virtual network interfaces. Upon election as active designated forwarder (DF) for the EVPN, the DF PE of the multi-homing PEs advertises toward the customer network an IGP metric for the anycast IP address that is lower than the IGP metric(s) advertised by any of the non-DF standby PE routers segment to direct the CE to forward network packets from the customer network to the DF PE over the respective link of the Ethernet segment.

    OAM mechanisms for EVPN active-active services
    9.
    发明授权
    OAM mechanisms for EVPN active-active services 有权

    公开(公告)号：US10243821B2

    公开(公告)日：2019-03-26

    申请号：US14984026

    申请日：2015-12-30

    申请人： Juniper Networks, Inc.

    发明人： Rukesh Dorai ,  Tapraj Singh ,  Sunesh Rustagi

    IPC分类号： H04L12/26 ,  H04L12/46 ,  H04L12/24 ,  H04L12/703 ,  H04L12/761 ,  H04L12/707

    摘要： A method and network device to execute an Ethernet Virtual Private Network (EVPN) protocol to configure the network device to participate as one of a plurality of customer edge (CE) routers that provide an active-active configuration for an Ethernet segment coupling the CE routers to a plurality of provider edge (PE) routers, wherein the processor is configured to determine whether a packet that is to be forwarded is an operations, administration, and management (OAM) packet; in response to determining that the packet comprises an OAM packet, replicate the OAM packet for one or more interface links of an Ethernet segment associated with the CE router; configure forwarding instructions to the one or more interface links of the Ethernet segment associated with the CE router; and forward the OAM packet and the replicated OAM packets to the PE routers.

    Adaptive load balancing for single active redundancy using EVPN designated forwarder election
    10.
    发明授权
    Adaptive load balancing for single active redundancy using EVPN designated forwarder election 有权

    公开(公告)号：US10050809B2

    公开(公告)日：2018-08-14

    申请号：US15676181

    申请日：2017-08-14

    申请人： Juniper Networks, Inc.

    发明人： Manoj Sharma ,  Shrinivasa Kini ,  Siddharth A. Tuli ,  Tapraj Singh ,  Sunesh Rustagi

    IPC分类号： H04L12/28 ,  H04L12/46

    摘要： A provider edge (PE) device may receive an indication to perform a designated forwarder (DF) election associated with a network segment that includes the PE device, one or more other PE devices, and a client edge (CE) device. The PE device, the one or more other PE devices, and the CE device may be associated with an Ethernet virtual private network (EVPN) that includes a group of EVPN instances (EVIs). The PE device may perform the DF election in order to determine election information associated with the PE device. The election information may include information associated with a particular EVI, of the group of EVIs, for which the PE device is to act as a DF. The PE device may provide the election information to the CE device to cause the CE device to provide traffic, associated with a particular VLAN included in the particular EVI, to the PE device.