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    MULTI-HOMED LAYER-2 (L2) SERVICE INSERTION ENTERPRISE FABRIC NETWORKS
    1.
    发明申请
    MULTI-HOMED LAYER-2 (L2) SERVICE INSERTION ENTERPRISE FABRIC NETWORKS 有权

    公开(公告)号：US20250126060A1

    公开(公告)日：2025-04-17

    申请号：US18380457

    申请日：2023-10-16

    Applicant: Cisco Technology, Inc.

    Inventor： Prakash C. Jain ,  Sanjay Kumar Hooda ,  Aaditya Nitin Vadnere ,  Kedar Sudhir Karmarkar

    IPC: H04L45/00

    Abstract: Techniques and architecture are described for L2 service insertion in a network. More particularly, the techniques and architecture provide for monitoring a L2 service, e.g., firewall, MAC address (instead of learning the MAC address) and registering/de-registering the service node (e.g., fabric border or edge or LISP service_etr) to the service control plane (e.g., LISP MSMR) based on this. This not only load-balances the traffic (per L2 flow) but also tracks it for node's liveliness. The techniques and architecture also provide L2 service insertion connected to a service border to allow for dynamic SGT based service, e.g., firewall, insertion for both software defined access (SDA) fabric and non-fabric deployments.

    SERVICE CHAINING IN FABRIC NETWORKS
    3.
    发明申请
    SERVICE CHAINING IN FABRIC NETWORKS 有权

    公开(公告)号：US20250062988A1

    公开(公告)日：2025-02-20

    申请号：US18938015

    申请日：2024-11-05

    Applicant: Cisco Technology, Inc.

    Inventor： Prakash C. Jain ,  Sanjay Kumar Hooda ,  Vinay Saini ,  Victor Manuel Moreno

    IPC: H04L45/586 ,  H04L12/46 ,  H04L45/00 ,  H04L45/02 ,  H04L45/302

    Abstract: Techniques are described herein for service chaining in fabric networks such that hardware resources can be preserved without service nodes needing additional capabilities. The techniques may include storing a first configuration associated with a first VRF instance of a service forwarding node that is connected to a first service of a service chain sequence. The first configuration may indicate an identifier and a type associated with a second service of the service chain sequence where traffic is to be sent after the first service. Additionally, the techniques may also include storing a second configuration associated with a second VRF instance of the service forwarding node that is connected to the second service. The second configuration may indicate that the second service is a last service of the service chain sequence. When traffic is received at the service forwarding node, the service forwarding node can determine whether the traffic is pre-service traffic or post-service traffic.

    Data sovereignty and service insertion in multisite network fabric
    4.
    发明授权
    Data sovereignty and service insertion in multisite network fabric 有权

    公开(公告)号：US12224931B2

    公开(公告)日：2025-02-11

    申请号：US17897634

    申请日：2022-08-29

    Applicant: Cisco Technology, Inc.

    Inventor： Prakash C. Jain ,  Vinay Saini ,  Sanjay Kumar Hooda

    IPC: H04L45/00 ,  H04L45/12

    Abstract: Techniques for a Software-Defined Networking (SDN) controller associated with a multisite network to implement jurisdictional data sovereignty polices in a multisite network, route network traffic flows between user sites and destination services over one or more provider sites, and/or perform a routing operation on the network traffic flow(s) based on the jurisdictional data sovereignty policies. The jurisdictional data sovereignty polices may be implemented using destination group tags (DGTs) and/or source group tags (SGTs). A secure access service edge (SASE) associated with the network controller may generate, store, and distribute the DGTs to provider sites and/or the SGTs to user sites. Based on the SGT and/or DGT associated with a network traffic flow, one or more services may be applied to the network traffic flow, and the network traffic flow may be routed through a particular region of a software-defined access (SDA) transit.

    Subscription-Based Sustainable Network Administration
    5.
    发明申请
    Subscription-Based Sustainable Network Administration 有权

    公开(公告)号：US20250023807A1

    公开(公告)日：2025-01-16

    申请号：US18349799

    申请日：2023-07-10

    Applicant: Cisco Technology, Inc.

    Inventor： Prakash C. Jain ,  Sanjay K. Hooda ,  Kabiraj Sethi ,  Vinay Saini

    IPC: H04L43/0876

    Abstract: Described herein are systems and methods for optimizing energy efficiency in a network utilizing a control plane or other network administration device or software suite. The control plane continuously monitors end-to-end network paths and collects real-time data about network topology, traffic patterns, and connected devices. By analyzing the collected network data, the control plane identifies power needs for network nodes and generates energy saving recommendations or instructions tailored to each node's specific capabilities. Network nodes can subscribe to the energy efficiency service provided by the control plane, receive network usage data, and execute energy saving operations based on the recommendations. The control plane dynamically updates the energy saving recommendations in response to changes in network conditions, enabling network nodes to optimize their energy efficiency without compromising network performance and availability. These updates can be based on current network conditions but can be generated from historical data and/or machine learning processes.

    Software defined access fabric without subnet restriction to a virtual network
    6.
    发明授权
    Software defined access fabric without subnet restriction to a virtual network 有权

    公开(公告)号：US12192057B2

    公开(公告)日：2025-01-07

    申请号：US18677720

    申请日：2024-05-29

    Applicant: Cisco Technology, Inc.

    Inventor： Sanjay Kumar Hooda ,  Muninder Singh Sambi ,  Victor Moreno ,  Prakash C. Jain ,  Tarunesh Ahuja ,  Satish Kondalam

    IPC: H04L41/0893 ,  G06F9/455 ,  H04L12/46

    Abstract: Systems, methods, and computer-readable storage media are provided for provisioning a common subnet across a number of subscribers and their respective virtual networks using dynamically generated network policies that provide isolation between the subscribers. The dynamic generation of the network policies is performed when a host (e.g. client) is detected (via a switch) as the host joins the computing network via virtual networks. This ability to configure a common subnet for all the subscriber virtual networks allows these subscribers to more easily access external shared services coming from a headquarter site while keeping the separation and segmentation of multiple subscriber virtual networks within a single subnet. This allows the Enterprise fabric to be more simple and convenient to deploy without making security compromises.

    ADAPTIVE MECHANISM FOR NETWORK COMMUNICATION
    9.
    发明公开
    ADAPTIVE MECHANISM FOR NETWORK COMMUNICATION 审中-公开

    公开(公告)号：US20240235991A9

    公开(公告)日：2024-07-11

    申请号：US17972119

    申请日：2022-10-24

    Applicant: Cisco Technology, Inc.

    Inventor： Prakash C. Jain ,  Vinay Saini ,  Sanjay Kumar Hooda

    IPC: H04L45/30 ,  H04L45/302

    CPC classification number: H04L45/30 ,  H04L45/302

    Abstract: This disclosure describes techniques for employing an adaptive mechanism in communications among network devices. Adaptive mechanism techniques may include adapting network operations relative to characteristics of devices and/or network access technologies or mechanisms used in the network. Adaptation may help to accommodate a wider variety of types of devices. For instance, adaptive mechanism techniques may include determining, based on characteristics of a device in the network, a forwarding mechanism to be used at an access device to forward data traffic from the device to another device via the network. As such, adaptive mechanism techniques may provide more efficient integration of devices within a complex network, thereby improving network operations.

    SERVICE CHAINING IN FABRIC NETWORKS
    10.
    发明公开
    SERVICE CHAINING IN FABRIC NETWORKS 审中-公开

    公开(公告)号：US20240137314A1

    公开(公告)日：2024-04-25

    申请号：US18545931

    申请日：2023-12-19

    Applicant: Cisco Technology, Inc.

    Inventor： Prakash C. Jain ,  Sanjay Kumar Hooda ,  Vinay Saini ,  Victor Manuel Moreno

    IPC: H04L45/586 ,  H04L45/00 ,  H04L45/02 ,  H04L45/302

    CPC classification number: H04L45/586 ,  H04L45/04 ,  H04L45/306 ,  H04L45/54 ,  H04L12/4633

    Abstract: Techniques are described herein for service chaining in fabric networks such that hardware resources can be preserved without service nodes needing additional capabilities. The techniques may include storing a first configuration associated with a first VRF instance of a service forwarding node that is connected to a first service of a service chain sequence. The first configuration may indicate an identifier and a type associated with a second service of the service chain sequence where traffic is to be sent after the first service. Additionally, the techniques may also include storing a second configuration associated with a second VRF instance of the service forwarding node that is connected to the second service. The second configuration may indicate that the second service is a last service of the service chain sequence. When traffic is received at the service forwarding node, the service forwarding node can determine whether the traffic is pre-service traffic or post-service traffic.

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