知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

52 records (took 0.046 seconds)

    MPLS label usage in ethernet virtual private networks
    34.
    发明授权
    MPLS label usage in ethernet virtual private networks 有权

    公开(公告)号：US09781032B1

    公开(公告)日：2017-10-03

    申请号：US15207316

    申请日：2016-07-11

    Applicant: Juniper Networks, Inc.

    Inventor： Pankaj Shukla ,  Wen Lin ,  Satya Ranjan Mohanty ,  John E. Drake

    IPC: H04L12/723 ,  H04L12/721

    CPC classification number: H04L45/66 ,  H04L45/50

    Abstract: In general, techniques are described for configuring a provider edge (PE) network device of an Ethernet virtual private network (EVPN) to use a common traffic engineering label (e.g., MPLS label) for different EVPN route types associated with the same EVPN. In some examples, the techniques include sending a first layer three (L3) control plane message that indicates a label-switched network protocol label that corresponds to a first EVPN route type, wherein the first L3 control plane message indicates that a first PE network device is reachable in the L2 segment. The techniques may include performing L2 address learning to determine at least one L2 address associated with the layer two segment of the EVPN. The techniques may include sending a second L3 control plane message that indicates the same label included in the first L3 control plane message corresponds to a second EVPN route type.

    METHOD, SYSTEM, AND APPARATUS FOR PREVENTING TROMBONING IN INTER-SUBNET TRAFFIC WITHIN DATA CENTER ARCHITECTURES
    35.
    发明申请
    METHOD, SYSTEM, AND APPARATUS FOR PREVENTING TROMBONING IN INTER-SUBNET TRAFFIC WITHIN DATA CENTER ARCHITECTURES 审中-公开

    公开(公告)号：US20170279705A1

    公开(公告)日：2017-09-28

    申请号：US15079250

    申请日：2016-03-24

    Applicant: Juniper Networks, Inc.

    Inventor： Wen Lin ,  John E. Drake

    IPC: H04L12/751 ,  H04L12/721

    CPC classification number: H04L45/02 ,  H04L45/025 ,  H04L45/48 ,  H04L45/72

    Abstract: The disclosed computer-implemented method for preventing tromboning in inter-subnet traffic within data center architectures may include (1) detecting, at a leaf node of a data center, a route advertisement that advertises a route to a spine node of another data center that interfaces with the data center, (2) identifying, at the leaf node, an IP identifier of the spine node included in the route advertisement, (3) determining, at the leaf node, that the route corresponds to the spine node based at least in part on the IP identifier identified in the route advertisement, and then in response to determining that the route corresponds to the spine node, (4) rejecting the route to the spine node at the leaf node such that the leaf node does not learn the route to the spine node. Various other methods, systems, and apparatuses are also disclosed.

    Signaling aliasing capability in data centers
    36.
    发明授权
    Signaling aliasing capability in data centers 有权
    数据中心信号混叠能力

    公开(公告)号：US09590902B2

    公开(公告)日：2017-03-07

    申请号：US14585841

    申请日：2014-12-30

    Applicant: Juniper Networks, Inc.

    Inventor： Wen Lin ,  Vasudevan Venkatraman ,  John E. Drake

    IPC: H04L29/12 ,  H04L12/46 ,  H04L12/721 ,  H04L12/715 ,  H04L12/723 ,  G06F11/00

    CPC classification number: H04L45/66 ,  H04L12/4641 ,  H04L45/04 ,  H04L45/50 ,  H04L45/74

    Abstract: Techniques are described for signaling aliasing capability between routers in a multi-tenant data center that uses VPNs, such as Ethernet VPNs. In the multi-tenant data center, two or more PE routers may be connected to a CE router by a multi-homed L2 segment in an all-active mode. Aliasing refers to the ability of a PE router to signal that it can reach a given multi-homed L2 segment even when the PE router has learned no MAC addresses over that multi-homed L2 segment. The PE routers on the multi-homed L2 segment advertise aliasing capability using a route advertisement on a per-L2 segment basis. When the multi-tenant data center uses global VPN identifiers, no additional information is needed by a remote PE to build an ECMP next hop to the PE routers that support aliasing, and transmission of a route advertisement on a per-VPN basis may be suppressed.

    Abstract translation: 描述了用于在使用VPN的多租户数据中心（例如以太网VPN）中的路由器之间的信号混叠能力的技术。 在多租户数据中心中，两个或多个PE路由器可以以全主动模式通过多宿主L2段连接到CE路由器。 混淆是指PE路由器发信号通知其能够达到给定的多宿主L2段的能力，即使PE路由器在该多宿主L2段上没有学到MAC地址。 多宿主L2段上的PE路由器通过基于每个L2段的路由通告来通告混叠能力。 当多租户数据中心使用全球VPN标识符时，远程PE不需要额外的信息来构建支持混叠的PE路由器的ECMP下一跳，并且可以抑制基于每个VPN的路由通告的传输 。

    PROTOCOL INDEPENDENT MULTICAST SPARSE MODE (PIM-SM) SUPPORT FOR DATA CENTER INTERCONNECT
    37.
    发明申请
    PROTOCOL INDEPENDENT MULTICAST SPARSE MODE (PIM-SM) SUPPORT FOR DATA CENTER INTERCONNECT 有权
    协议独立多播多播模式（PIM-SM）支持数据中心互连

    公开(公告)号：US20160119156A1

    公开(公告)日：2016-04-28

    申请号：US14580185

    申请日：2014-12-22

    Applicant: Juniper Networks, Inc .

    Inventor： John E. Drake ,  Zhaohui Zhang ,  Wen Lin ,  Tapraj Singh

    IPC: H04L12/18 ,  H04L12/761

    CPC classification number: H04L12/18 ,  H04L12/1886 ,  H04L12/4641 ,  H04L12/4654 ,  H04L45/16

    Abstract: Techniques are described for utilizing Protocol Independent Multicast Sparse Mode (PIM-SM) to transport BUM (broadcast, unknown unicast, and multicast) traffic in a Virtual Extensible LAN (VXLAN) underlay of a data center, where the BUM traffic is received on active-active, multi-homed Ethernet virtual private network (EVPN) interconnects between multiple physical data centers. For example, the techniques may readily be applied to support usage of PIM-SM where provider edge (PE) routers of the EVPN operate as gateways between the EVPN and the VXLAN spanning the data center interconnect.

    Abstract translation: 描述了利用协议无关组播稀疏模式（PIM-SM）来在数据中心的虚拟可扩展LAN（VXLAN）底层传输BUM（广播，未知单播和多播）业务的技术，其中BUM业务被接收在活动的 多个物理数据中心之间的主动，多归位以太网虚拟专用网（EVPN）互连。 例如，这些技术可以容易地应用于支持EVPN的提供商边缘（PE）路由器作为跨越数据中心互连的EVPN和VXLAN之间的网关的PIM-SM的使用。

    Handling entropy labels when stitching label-switched paths
    38.
    发明授权
    Handling entropy labels when stitching label-switched paths 有权
    在拼接标签交换路径时处理熵标签

    公开(公告)号：US09178810B1

    公开(公告)日：2015-11-03

    申请号：US13952254

    申请日：2013-07-26

    Applicant: Juniper Networks, Inc.

    Inventor： Ravi Singh ,  John E. Drake ,  Adrian Farrel ,  Yimin Shen

    IPC: H04L12/723 ,  H04L12/803 ,  H04L29/08

    CPC classification number: H04L45/50 ,  H04L12/4633 ,  H04L47/125 ,  H04L67/1002 ,  H04L69/22

    Abstract: In one example, a stitching point routing device, which stitches a previous segment of an end-to-end label-switched path (LSP) to a next segment of the end-to-end LSP, includes network interfaces configured to receive packets via the previous segment and send packets via the next segment, and one or more processors configured to determine whether the next segment supports entropy labels, determine whether a packet received from the previous segment is encapsulated by a label stack including an entropy label, when the next segment does not support entropy labels and when the packet is encapsulated by the label stack including the entropy label, remove the entropy label from the label stack, when the next segment supports entropy labels and when the packet is not encapsulated by the label stack including the entropy label, add an entropy label to the label stack, and forward the packet along the next segment.

    Abstract translation: 在一个示例中，将端到端标签交换路径（LSP）的先前段缝合到端到端LSP的下一段的拼接点路由设备包括被配置为经由 前一段并经由下一段发送数据包，以及一个或多个处理器，被配置为确定下一个段是否支持熵标签，确定从前一段接收到的数据包是否被包含熵标签的标签栈封装，当下一个段 段不支持熵标签，并且当分组被包括熵标签的标签栈封装在一起时，从标签堆栈中移除熵标签，当下一个段支持熵标签时，并且当该分组未被标签栈封装时，包括 熵标签，向标签栈添加熵标签，并沿着下一个段转发数据包。

    Fast reroute for BUM traffic in ethernet virtual private networks
    39.
    发明授权
    Fast reroute for BUM traffic in ethernet virtual private networks 有权

    公开(公告)号：US12143293B2

    公开(公告)日：2024-11-12

    申请号：US18146309

    申请日：2022-12-23

    Applicant: Juniper Networks, Inc.

    Inventor： Wen Lin ,  John E. Drake

    IPC: H04L45/16 ,  H04L45/00 ,  H04L45/02 ,  H04L45/50 ,  H04L47/32

    Abstract: Techniques are described for providing fast reroute for BUM traffic in EVPN. For example, a first provider edge (PE) device, elected as a designated forwarder (DF) of an Ethernet segment, configures a backup path using a label received from a second PE device of the Ethernet segment (e.g., backup DF) that identifies the second PE device as a “protector” of the Ethernet segment. For example, a routing component of the DF configures within a forwarding component a backup path to the second PE device, e.g., installing the label and operation(s) within the forwarding component to cause the forwarding component to add the label to BUM packets received from a core network. Therefore, when an access link to the local CE device has failed, the DF reroutes BUM packets from the core network via the backup path to the second PE device, which sends the BUM packets to the CE device.

Patent Agency Ranking