公开(公告)号：US11956123B1

公开(公告)日：2024-04-09

申请号：US17489351

申请日：2021-09-29

Applicant: Cisco Technology, Inc.

Inventor： Patnala Debashis Rao ,  Shyam Kapadia ,  Jason David Notari ,  Lukas Krattiger

IPC: H04W40/24 ,  H04L41/0873

CPC classification number: H04L41/0873

Abstract: Techniques for determining that a configuration change in configurations for a network device has occurred to result in changed configurations for the network device. The techniques include creating a policy for the network device by a network controller that manages one or more network devices. The network controller may obtain data from the network device, and update the network device policy based on the obtained data. In some examples, the network controller may compare the network device configurations state with the network controller intent to determine if an Out-of-Band (OOB) configuration change has occurred in the configuration of the network device. Finally, the controller may synchronize the network device to the controller based on the updated policy.

公开(公告)号：US20240113903A1

公开(公告)日：2024-04-04

申请号：US18486238

申请日：2023-10-13

Applicant: Cisco Technology, Inc.

Inventor： Chad M. Jones ,  Joel Richard Goergen ,  George Allan Zimmerman ,  Richard Anthony O'Brien ,  Douglas Paul Arduini ,  Jason DeWayne Potterf ,  Sung Kee Baek

IPC: H04L12/10 ,  H03M13/03 ,  H03M13/37 ,  H04B3/54 ,  H04L41/12 ,  H04W80/02

CPC classification number: H04L12/10 ,  H03M13/03 ,  H03M13/373 ,  H04B3/54 ,  H04L41/12 ,  H04W80/02 ,  H03M13/1515 ,  H04B2203/542

Abstract: In one embodiment, a method includes transmitting pulse power on two wire pairs, the pulse power comprising a plurality of high voltage pulses with the high voltage pulses on the wire pairs offset between the wire pairs to provide continuous power, performing low voltage fault detection on each of the wire pairs between the high voltage pulses, and transmitting data on at least one of the wire pairs during transmittal of the high voltage pulses. Data transmittal is suspended during the low voltage fault detection.

公开(公告)号：US11950128B2

公开(公告)日：2024-04-02

申请号：US17490429

申请日：2021-09-30

Applicant: Cisco Technology, Inc.

Inventor： Irfan Ali ,  Ravi Kiran Guntupalli

IPC: H04W28/02 ,  H04W28/08 ,  H04W28/10

CPC classification number: H04W28/0273 ,  H04W28/0268 ,  H04W28/09 ,  H04W28/10

Abstract: A control plane (CP) function for session management performs a procedure for establishing local traffic offloading for a user equipment (UE) in a mobile network having an Evolved Packet Core (EPC) and Fifth Generation (5G) converged core that supports communications via a Long-Term Evolution (LTE) radio access network (RAN) and a Fifth Generation (5G) RAN. Initially, a connection is established for the UE via the LTE RAN that includes a first bearer between the LTE RAN and a central serving gateway-user plane (SGW-U) at a central location, and a second bearer between the central SGW-U and a central packet gateway-user plane (PGW-U) at the central location. The CP function inserts a local SGW-U at an edge location and subsequently inserts a local intermediate user plane function (I-UPF) with an uplink classifier (UL-CL) at the edge location for enabling edge offload of traffic from the LTE RAN.

公开(公告)号：US11949596B1

公开(公告)日：2024-04-02

申请号：US18353649

申请日：2023-07-17

Applicant: Cisco Technology, Inc.

Inventor： Navin Ashok Suvarna ,  Sridhar Vaidyanathan ,  Praveen Shrinivas Poojary ,  Dhrumil Prajapati

IPC: H04L47/122 ,  H04L43/0882 ,  H04L47/125

CPC classification number: H04L47/122 ,  H04L43/0882 ,  H04L47/125

Abstract: Data defining egress bandwidth utilization on an interface of a node may be obtained and a congestion event may be detected based at least in part on an average interface utilization (Y) being greater than a first threshold (X1). A plurality of alternate links that can accommodate excess bandwidth without exceeding the first threshold may be identified. Flows associated with the plurality of alternate links may be filtered based at least in part on business logic macro flow filtering. It may be determined whether the plurality of alternate links pass a diffusing update algorithm (DUAL)-based loop-free path-finding algorithm (LPA) analysis for the destination node prefixes whether the destination node prefixes pass the DUAL-based LPA analysis for the at least one of the plurality of alternate links and a plurality of next hops associated with the at least one of the plurality of alternate links.

公开(公告)号：US11949593B2

公开(公告)日：2024-04-02

申请号：US17740903

申请日：2022-05-10

Applicant: Cisco Technology, Inc.

Inventor： Pradeep Kumar Kathail ,  Eric Voit ,  David A. Maluf

IPC: G06F15/173 ,  G06F15/16 ,  H04L45/42 ,  H04L45/741 ,  H04L45/748 ,  H04L61/251

CPC classification number: H04L45/741 ,  H04L45/42 ,  H04L45/748 ,  H04L61/251

Abstract: Stateless address translation at an Autonomous System (AS) boundary for host privacy may be provided. An address associated with a host device in the AS may be received. The address may comprise a network prefix and an interface identifier (ID). Then a cypher value may be assigned to a cypher bit range in the network prefix. The cypher value may be associated with a first cypher algorithm of a plurality of cypher algorithms. Next, the address may be encoded wherein encoding the address comprises applying the first cypher algorithm to encode a coding bit range in the address that is less significant than the cypher bit range. The encoded address may then be used for flows from the host that egress the AS.

公开(公告)号：US11949498B2

公开(公告)日：2024-04-02

申请号：US17516879

申请日：2021-11-02

Applicant: Cisco Technology, Inc.

Inventor： Thomas Duthel ,  Helmut Preisach

IPC: H04B10/50 ,  G02F1/21 ,  H04B10/508 ,  H04J14/08

CPC classification number: H04J14/08 ,  G02F1/212 ,  H04B10/5053 ,  H04B10/508

Abstract: An optical modulator comprises, as optical modulator components, first and second transmitter chains and a first optical time division multiplex, OTDM, generator arranged to receive time interleaved optical pulses generated by one of said optical modulator components.

公开(公告)号：US20240107510A1

公开(公告)日：2024-03-28

申请号：US18514300

申请日：2023-11-20

Applicant: Cisco Technology, Inc.

Inventor： Ki Bum Kwon

IPC: H04W72/0453 ,  H04L45/302 ,  H04W28/02 ,  H04W72/02 ,  H04W76/14 ,  H04W76/27

CPC classification number: H04W72/0453 ,  H04L45/302 ,  H04W28/0278 ,  H04W72/02 ,  H04W76/14 ,  H04W76/27 ,  H04W76/11

Abstract: A method of supporting a buffer status report associated with a device-to-device (D2D) communication includes: establishing an RRC connection with an eNB; receiving, by a UE, configuration information associated with a D2D communication from the eNB, the configuration information including information of a resource selection mode for a D2D data transmission, the information of a resource selection mode indicating a resource pool from which the UE selects a resource for a D2D data transmission to another UE; identifying a D2D target identity of at least one target UE to which the UE transmits D2D data by performing a D2D discovery procedure; setting an RRC message to be transmitted to the eNB, the RRC message including information of the identified D2D target identity; and transmitting the RRC message to the eNB, the information of the identified D2D target identity being transmitted through UEinformation message for a D2D data transmission.

公开(公告)号：US20240106679A1

公开(公告)日：2024-03-28

申请号：US18536082

申请日：2023-12-11

Applicant: Cisco Technology, Inc.

Inventor： Pierre Pfister ,  William Mark Townsley ,  Yoann Desmouceaux ,  David Delano Ward

IPC: H04L12/46 ,  G06F16/95

CPC classification number: H04L12/46 ,  G06F16/95

Abstract: This disclosure describes methods and systems to externally manage network-to-network interconnect configuration data in conjunction with a centralized database subsystem. An example of the methods includes receiving and storing, in the centralized database subsystem, data indicative of user intent to interconnect at least a first network and a second network. The example method further includes, based at least in part on the data indicative of user intent, determining and storing, in the centralized database subsystem, a network intent that corresponds to the user intent. The example method further includes providing data indicative of the network intent from the centralized database subsystem to a first data plane adaptor, associated with the first network, and a second data plane adaptor, associated with the second network.

公开(公告)号：US11943619B2

公开(公告)日：2024-03-26

申请号：US17388267

申请日：2021-07-29

Applicant: Cisco Technology, Inc.

Inventor： Jerome Henry ,  Bart Brinckman ,  Mark Grayson

IPC: H04W12/08 ,  H04W12/04 ,  H04W12/06 ,  H04W12/086 ,  H04W84/12

CPC classification number: H04W12/086 ,  H04W12/06

Abstract: The presently claimed disclosure is directed to methods that may be implemented at a computer. Methods and systems consistent with the present disclosure may include extending protocols associated with authenticating client (i.e. supplicant) devices and with authorizing those supplicant devices to access a wireless network. These methods may include sending data relating to the failure of an authentication and/or an authorization process to a supplicant device attempting to access a wireless network. Methods discussed within may include securely sending failure codes or reasons to a supplicant device that identify why an authentication or authorization process failed. These methods may include sending messages between a supplicant device, an authenticator device, and an authentication and authorization server. After a first failure, the supplicant device may be able to access the wireless network after a reason or code of that failure has been reported to the supplicant device.

公开(公告)号：US11943078B2

公开(公告)日：2024-03-26

申请号：US17860926

申请日：2022-07-08

Applicant: Cisco Technology, Inc.

Inventor： Hari Shankar ,  Rashmi Garg ,  Benoit Ganne ,  Jerome Tollet ,  Nathan Skrzypczak

IPC: H04L12/46 ,  H04L12/44 ,  H04L45/02 ,  H04L45/44 ,  H04L45/741

CPC classification number: H04L12/4683 ,  H04L12/44 ,  H04L45/04 ,  H04L45/44 ,  H04L45/741 ,  H04L2012/445

Abstract: Techniques for a hub node, provisioned in a site of a hub and spoke overlay network, to receive, store, and/or forward network routing information associated with a spoke, and send packets directly to spoke(s) that are remote from the hub node. A first hub node may receive a network advertisement including a border gateway protocol (BGP) large community string from a first spoke local to the first hub node. The first hub node may send the BGP large community string to a second hub node remote from the first hub node. The second hub node may decode network routing information from the BGP large community string and store the network routing information locally. The second hub node may send a packet from a second spoke local to the second hub node directly to the first spoke without the data packet being routed via the first hub node.