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    VIRTUALIZATION OF CONTROL PLANE NETWORK ELEMENTS
    11.
    发明申请
    VIRTUALIZATION OF CONTROL PLANE NETWORK ELEMENTS 有权
    控制平面网络元素的虚拟化

    公开(公告)号：US20160020991A1

    公开(公告)日：2016-01-21

    申请号：US14872357

    申请日：2015-10-01

    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.

    Inventor： James Uttaro ,  Eric Rosenberg

    IPC: H04L12/715 ,  H04L12/721

    CPC classification number: H04L45/04 ,  H04L29/06 ,  H04L45/12 ,  H04L45/126

    Abstract: A system includes a first regional network including a first network element; a second regional network including a virtualized control plane network element, the virtualized control plane network element supporting a routing protocol at the first regional network, the routing protocol employing a location-based cost model; and a network connection connecting the virtualized control plane network element to the first regional network, the network connection having a network connection cost, the network connection cost applied in the location-based cost model to support the routing protocol at the first regional network.

    Abstract translation: 一种系统包括：第一区域网络，包括第一网络元件; 包括虚拟化控制平面网元的第二区域网络，在第一区域网络处支持路由协议的虚拟化控制平面网络元件，采用基于位置的成本模型的路由协议; 以及将所述虚拟化控制平面网元连接到所述第一区域网络的网络连接，所述网络连接具有网络连接成本，所述网络连接成本在所述基于位置的成本模型中应用以支持所述第一区域网络处的路由协议。

    Virtual Router Instantiation on Public Clouds
    12.
    发明申请
    Virtual Router Instantiation on Public Clouds 有权

    公开(公告)号：US20220303156A1

    公开(公告)日：2022-09-22

    申请号：US17202850

    申请日：2021-03-16

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： James Uttaro ,  Tuan Duong

    IPC: H04L12/46 ,  H04L12/24

    Abstract: Aspects of the subject disclosure may include, for example, instantiating a virtual provider edge router (VPE) of a network operator on a layer 3 public cloud network operated by a cloud operator, establishing a virtual layer 2 bridging domain over the layer 3 public cloud network between a core network of the network operator and the VPE, wherein the virtual layer 2 bridging domain shields infrastructure addressing of the core network of the network operator, and establishing an Interior Gateway Protocol (IGP) of the network operator on top of the virtual layer 2 bridging domain for layer 2 communication between the core network of the network operator and the VPE over the layer 3 public cloud network. Other embodiments are disclosed.

    Management of forwarding tables at edge routers
    14.
    发明授权
    Management of forwarding tables at edge routers 有权

    公开(公告)号：US10979341B2

    公开(公告)日：2021-04-13

    申请号：US16858964

    申请日：2020-04-27

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： James Uttaro ,  Han Q. Nguyen

    IPC: H04L29/06 ,  H04L12/741 ,  H04L12/755 ,  H04L12/733

    Abstract: Concepts and technologies are disclosed herein for management of forwarding tables at edge routers. A processor that executes a software defined networking controller can select an edge router associated with a networking environment. The edge router can access or use a forwarding table. The processor can obtain routing information associated with the edge router. The routing information can include forwarding table contents associated with the forwarding table and next hop information that can indicate communication paths associated with the edge router. The processor can analyze the routing information to determine next hops associated with the edge router, generate a next hop graph that represents the next hops, and initiate updating of the forwarding table such that the forwarding table only includes data that corresponds to the next hops.

    Inter-provider network architecture
    15.
    发明授权
    Inter-provider network architecture 有权

    公开(公告)号：US10785142B2

    公开(公告)日：2020-09-22

    申请号：US16260486

    申请日：2019-01-29

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： James Uttaro ,  Mark R. Sundt

    IPC: H04L12/715 ,  H04L12/721 ,  H04L12/751 ,  H04L29/08 ,  H04L12/803 ,  H04L29/06

    Abstract: An inter-provider network architecture system is disclosed. In particular, the system may enable a service provider network and a partner network to take advantage of each other's network cores, such that the resources of the service provider network and the partner network may be more effectively utilized to service customers of both networks. By doing so, not only can the service provider network and the partner network take advantage of each other's network resources, but they can also give each other's customers broader network reach into regions that are not typically serviced by their own networks. The service provider network may effectively accomplish this by providing a limited view of the service provider network to the partner network, or vice versa, so that traffic and data can flow between the networks without each network having to be fully aware of each other's entire network topologies.

    Systems and Methods for Creating an Integrated Layer 2-Layer 3 Hybrid VPN Network
    17.
    发明申请
    Systems and Methods for Creating an Integrated Layer 2-Layer 3 Hybrid VPN Network 审中-公开

    公开(公告)号：US20180309594A1

    公开(公告)日：2018-10-25

    申请号：US15492120

    申请日：2017-04-20

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： James Uttaro ,  Avinash Lingala

    IPC: H04L12/46 ,  H04L29/08

    CPC classification number: H04L12/4641 ,  H04L69/321

    Abstract: In an integrated Layer 2-layer 3 hybrid VPN network a Layer 3 provider edge device that runs in an EVPN domain and a Layer 3 VPN domain defines an interconnect point between the EVPN domain and the Layer 3 VPN domain. The Layer 3 provider edge device receives an IP prefix for a Layer 3 customer edge device disposed in the Layer 3 VPN domain. The Layer 3 provider edge device receives a MAC address, an IP address and a next hop address for an EVPN customer edge device disposed in the EVPN domain from an EVPN provider edge device disposed in the EVPN domain. The Layer 3 provider edge device leaks the IP prefix to the EVPN domain and transmits state information to the EVPN customer edge device.

    Virtualization of control plane network elements
    19.
    发明授权
    Virtualization of control plane network elements 有权
    控制平面网元的虚拟化

    公开(公告)号：US09172579B2

    公开(公告)日：2015-10-27

    申请号：US13678649

    申请日：2012-11-16

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： James Uttaro ,  Eric Rosenberg

    IPC: H04L29/06 ,  H04L12/733 ,  H04L12/715

    CPC classification number: H04L45/04 ,  H04L29/06 ,  H04L45/12 ,  H04L45/126

    Abstract: A system includes a first regional network including a first network element; a second regional network including a virtualized control plane network element, the virtualized control plane network element supporting a routing protocol at the first regional network, the routing protocol employing a location-based cost model; and a network connection connecting the virtualized control plane network element to the first regional network, the network connection having a network connection cost, the network connection cost applied in the location-based cost model to support the routing protocol at the first regional network.

    Abstract translation: 一种系统包括：第一区域网络，包括第一网络元件; 包括虚拟化控制平面网元的第二区域网络，在第一区域网络处支持路由协议的虚拟化控制平面网络元件，采用基于位置的成本模型的路由协议; 以及将所述虚拟化控制平面网元连接到所述第一区域网络的网络连接，所述网络连接具有网络连接成本，所述网络连接成本在所述基于位置的成本模型中应用以支持所述第一区域网络处的路由协议。

    Communication networks that provide a common transport domain for use by multiple service domains and methods and computer program products for using the same
    20.
    发明授权
    Communication networks that provide a common transport domain for use by multiple service domains and methods and computer program products for using the same 有权
    提供通用传输域的通信网络，供多个服务域使用，方法和计算机程序产品使用

    公开(公告)号：US09088498B2

    公开(公告)日：2015-07-21

    申请号：US14294279

    申请日：2014-06-03

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： James Uttaro ,  Richard Todd Harding

    IPC: H04L12/721 ,  H04L12/715 ,  H04L12/723 ,  H04L12/66 ,  H04L12/70

    CPC classification number: H04L45/12 ,  H04L12/66 ,  H04L45/04 ,  H04L45/50 ,  H04L45/72 ,  H04L2012/5618

    Abstract: A method of operating a communication network comprises receiving loopback addresses from a plurality of edge networks at a provider router of a core backbone network, the edge networks and the core backbone network being logically distinct from each other, advertising the loopback addresses to a transport route reflector element, propagating the advertisement of the loopback addresses to other provider routers of the core backbone network using a protocol for communicating between autonomous systems, and using the transport route reflector element to advertise at least one of the loopback addresses to a service route reflector element in one of the plurality of edge networks.

    Abstract translation: 一种操作通信网络的方法包括从核心骨干网络的提供商路由器处接收来自多个边缘网络的环回地址，边缘网络和核心骨干网络在逻辑上彼此不同，将环回地址广播到传输路由 反射器元件，使用用于在自主系统之间通信的协议将所述环回地址的广告传播到所述核心骨干网络的其他提供商路由器，并且使用所述传输路由反射器元件将至少一个所述环回地址通告给服务路由反射器元件 在多个边缘网络中的一个中。

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