公开(公告)号：US20210136607A1

公开(公告)日：2021-05-06

申请号：US16672048

申请日：2019-11-01

Applicant: Cisco Technology, Inc.

Inventor： Balaji Sundararajan ,  Sanjay Kumar Hooda ,  Venkatesh Ramachandra Gota ,  Chandramouli Balasubramanian ,  Anand Oswal

IPC: H04W24/08 ,  H04W28/02 ,  H04W36/22 ,  H04W48/06 ,  H04W28/24

Abstract: Systems and methods for managing traffic in a hybrid environment include monitoring traffic load of a local network to determine whether the traffic load exceeds or is likely to exceed a maximum traffic load, where the maximum traffic load is a traffic load for which a service can be provided by the local network, based on a license. An excess traffic load is determined if the traffic load exceeds or is likely to exceed the maximum traffic load. One or more external networks which have a capacity to provide the service to the excess traffic load are determined, to which the excess traffic load is migrated. The local network includes one or more service instances for providing the service for up to the maximum traffic load, and the service to the excess traffic load is provided by one or more additional service instances in the one or more external networks.

公开(公告)号：US20210112034A1

公开(公告)日：2021-04-15

申请号：US16653735

申请日：2019-10-15

Applicant: Cisco Technology, Inc.

Inventor： Balaji Sundararajan ,  Vivek Agarwal ,  Harish A. Kapadia

IPC: H04L29/06 ,  H04L12/24 ,  H04L12/46 ,  H04L12/947 ,  H04L12/813

Abstract: A network controller can register WAN edge routers and WAN optimizers distributed across a WAN. The controller can receive a request to establish a WAN optimized connection between first and second hosts. The controller can identify a first WAN optimizer to perform first services (e.g., de-duplication, compression, application acceleration, caching, etc.) for first traffic from the first host to the second host and first complementary services for second traffic from the second host to the first host, and a second WAN optimizer for the second traffic and second complementary services for the first traffic. The controller can establish the optimized connection comprising a first path including the first host, WAN optimizer, and router; a second path including the first router and a second router, and a third path including the second router, WAN optimizer, and host. The controller can route the first and second traffic through the optimized connection.

公开(公告)号：US10911330B2

公开(公告)日：2021-02-02

申请号：US16702272

申请日：2019-12-03

Applicant: Cisco Technology, Inc.

Inventor： Balaji Sundararajan ,  Vamsidhar Valluri ,  Chandramouli Balasubramanian ,  Anand Oswal ,  Ram Dular Singh

IPC: H04L12/24

Abstract: In one embodiment, a method includes providing a first profile to a plurality of edge routers of the SD-WAN, the plurality of edge routers operable to interface a plurality of devices to the SD-WAN. The first profile enables the plurality of edge routers to discover which devices of the plurality of devices support a first application. The method includes receiving, from one or more of the edge routers, information indicating which devices of the plurality of devices support the first application and building a first application fabric based on the information indicating which devices of the plurality of devices support the first application.

公开(公告)号：US20200274848A1

公开(公告)日：2020-08-27

申请号：US16870130

申请日：2020-05-08

Applicant: Cisco Technology, Inc.

Inventor： Balaji Sundararajan ,  Samar Sharma

IPC: H04L29/12 ,  H04L12/707 ,  H04L12/725 ,  H04L12/721 ,  H04L12/741 ,  H04L29/06

Abstract: Systems, methods, and computer-readable media for creating service chains for inter-cloud traffic. In some examples, a system receives domain name system (DNS) queries associated with cloud domains and collects DNS information associated the cloud domains. The system spoofs DNS entries defining a subset of IPs for each cloud domain. Based on the spoofed DNS entries, the system creates IP-to-domain mappings associating each cloud domain with a respective IP from the subset of IPs. Based on the IP-to-domain mappings, the system programs different service chains for traffic between a private network and respective cloud domains. The system routes, through the respective service chain, traffic having a source associated with the private network and a destination matching the IP in the respective IP-to-domain mapping.

公开(公告)号：US20190379635A1

公开(公告)日：2019-12-12

申请号：US16001039

申请日：2018-06-06

Applicant: Cisco Technology, Inc.

Inventor： Balaji Sundararajan ,  Samar Sharma

IPC: H04L29/12 ,  H04L12/725 ,  H04L12/741 ,  H04L12/721 ,  H04L12/707 ,  H04L29/06

Abstract: Systems, methods, and computer-readable media for creating service chains for inter-cloud traffic. In some examples, a system receives domain name system (DNS) queries associated with cloud domains and collects DNS information associated the cloud domains. The system spoofs DNS entries defining a subset of IPs for each cloud domain. Based on the spoofed DNS entries, the system creates IP-to-domain mappings associating each cloud domain with a respective IP from the subset of IPs. Based on the IP-to-domain mappings, the system programs different service chains for traffic between a private network and respective cloud domains. The system routes, through the respective service chain, traffic having a source associated with the private network and a destination matching the IP in the respective IP-to-domain mapping.

公开(公告)号：US12273267B2

公开(公告)日：2025-04-08

申请号：US18604972

申请日：2024-03-14

Applicant: Cisco Technology, Inc.

Inventor： Balaji Sundararajan ,  Ramakumara Kariyappa ,  Nithin Bangalore Raju ,  Bhairav Dutia ,  Vivek Agarwal ,  Satish Mahadevan ,  Ankur Bhargava

IPC: H04L45/586 ,  H04L45/748 ,  H04L61/5061

Abstract: Symmetric networking techniques disclosed herein can be applied by gateway routers in cloud networks. The techniques can ensure that both outbound traffic received at a cloud from a branch device and return traffic directed from the cloud back to the branch device are processed by a same gateway router. The gateway router can use network address translation to insert IP addresses from an inside pool and an outside pool assigned to the router.

公开(公告)号：US12255758B2

公开(公告)日：2025-03-18

申请号：US18610512

申请日：2024-03-20

Applicant: Cisco Technology, Inc.

Inventor： Balaji Sundararajan ,  Madhuri Kolli ,  Giorgio Valentini ,  Venkatraman Venkatapathy ,  Avinash Ashok Kumar Chiganmi ,  Vivek Agarwal

IPC: H04L12/46 ,  H04L12/66 ,  H04L45/00 ,  H04L45/02

Abstract: The present technology pertains to receiving a tag associating at least one routing domain in an on-premises site with at least one virtual network in a cloud environment associated with a cloud service provider. The present technology also pertains to the automation of populating route and propagation tables with the cloud service provider.

公开(公告)号：US20250071061A1

公开(公告)日：2025-02-27

申请号：US18456266

申请日：2023-08-25

Applicant: Cisco Technology, Inc.

Inventor： Satish Kumar Mahadevan ,  Sheikh M Qumruzzaman ,  Ravi Kiran Chintallapudi ,  Prosenjit Sarkar ,  Sourav Sen ,  Balaji Sundararajan ,  Rahul P Hardikar

IPC: H04L45/76

Abstract: Systems and methods are provided for re-balancing and healing of an SD-WAN in an unbalanced state and/or experiencing one or more failure states. In response to a request to connect to a new controller resulting from OMP load shedding from a first controller, the system can identify other controllers capable of handling the load requirements of the edge router. The system can incorporate the controller group preference of the edge router and select a second controller based on the identified other controllers and within the preferred controller group. If not possible, the system can temporarily assign the edge router to non-preferred controller groups and move them back to controllers in the preferred controller group once it becomes viable. The system further enhances OMP graceful restart (GR) logic to incorporate the load shedding effect and avoid unnecessary route retention that GR entails.

公开(公告)号：US12238006B1

公开(公告)日：2025-02-25

申请号：US18456266

申请日：2023-08-25

Applicant: Cisco Technology, Inc.

Inventor： Satish Kumar Mahadevan ,  Sheikh M Qumruzzaman ,  Ravi Kiran Chintallapudi ,  Prosenjit Sarkar ,  Sourav Sen ,  Balaji Sundararajan ,  Rahul P Hardikar

IPC: G06F15/173 ,  H04L45/76

Abstract: Systems and methods are provided for re-balancing and healing of an SD-WAN in an unbalanced state and/or experiencing one or more failure states. In response to a request to connect to a new controller resulting from OMP load shedding from a first controller, the system can identify other controllers capable of handling the load requirements of the edge router. The system can incorporate the controller group preference of the edge router and select a second controller based on the identified other controllers and within the preferred controller group. If not possible, the system can temporarily assign the edge router to non-preferred controller groups and move them back to controllers in the preferred controller group once it becomes viable. The system further enhances OMP graceful restart (GR) logic to incorporate the load shedding effect and avoid unnecessary route retention that GR entails.

公开(公告)号：US20240333598A1

公开(公告)日：2024-10-03

申请号：US18320136

申请日：2023-05-18

Applicant: Cisco Technology, Inc.

Inventor： Balaji Sundararajan ,  Ankur Bhargava ,  Bhairav Dutia ,  Vivek Agarwal ,  Aastha Verma

IPC: H04L41/12

CPC classification number: H04L41/12

Abstract: Systems and methods provide for creating a network device hierarchy among a plurality of nodes. The network device hierarchy may include a plurality of geography-based groups defined by a corresponding number of geolocations. The operations further include associating each of the plurality of geography-based groups with a plurality of different configuration intents, associating each of the plurality of nodes with one of the plurality of geography-based groups, and deploying the plurality of nodes based on their respective one of the geolocations.