公开(公告)号：US20230379250A1

公开(公告)日：2023-11-23

申请号：US17750215

申请日：2022-05-20

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Patrick WETTERWALD ,  Eric LEVY-ABEGNOLI ,  Jonas ZADDACH

IPC: H04L45/745 ,  H04L45/00 ,  H04L45/42 ,  H04L43/106

CPC classification number: H04L45/745 ,  H04L45/566 ,  H04L45/42 ,  H04L43/106

Abstract: In one embodiment, an illustrative method herein may comprise: receiving, at an access device for a network, a packet having a set of packet features; making, by the access device, a determination that the set of packet features of the packet match a forwarding ruleset that defines differentiated services for different types of packets based on their packet features; formulating, by the access device and based on the determination, a compressed header for the packet that has one or more differentiated service indicators based on the forwarding ruleset; and forwarding, from the access device, the packet with the compressed header, to cause forwarding decisions to be made within the network for the packet based on the one or more differentiated service indicators in its compressed header.

公开(公告)号：US20230362675A1

公开(公告)日：2023-11-09

申请号：US17836235

申请日：2022-06-09

Applicant: Cisco Technology, Inc.

Inventor： Sri Gundavelli ,  Arun G. Khanna ,  Indermeet Singh Gandhi ,  Mark Grayson ,  Pascal Thubert

IPC: H04W24/02 ,  H04W40/24 ,  H04W76/10

CPC classification number: H04W24/02 ,  H04W40/246 ,  H04W76/10 ,  H04W84/12

Abstract: The present disclosure relates to simultaneous operation of Wi-Fi access points in a super cell mode and a standalone mode and controlling connectivity of end terminals thereto. In one aspect, a method includes receiving a configuration for a group of access points operating within a network, the configuration allowing each access point of the group to operate in a super cell mode over a shared frequency channel and a standalone mode over a non-shared frequency channel. The method further includes determining, for an end terminal, whether the end terminal is to connect to the network over the shared frequency channel or the non-shared frequency channel based on a network policy to yield a determination; and controlling connectivity of the end terminal to at least one access point of the group of access points over the shared frequency channel or the non-shared frequency channel based on the determination.

公开(公告)号：US11784970B2

公开(公告)日：2023-10-10

申请号：US17362485

申请日：2021-06-29

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Eric M. Levy-Abegnoli ,  Patrick M. P. Wetterwald ,  Jonas Zaddach

IPC: H04L9/40

CPC classification number: H04L63/0209 ,  H04L63/12

Abstract: The present disclosure is directed to systems and methods for first hop security in a multi-site and multi-vendor cloud. The method may include receiving, at a first hop security (FHS) device located within a defined security perimeter, a message from a first host; validating a security of the message; signing the message with a signature to prove validation of the message, the signature comprising at least a Crypto-ID Parameters Option (CIPO) and a Neighbor Discovery Protocol Signature Option (NDPSO); and transmitting the signed message to one or more network FHS devices within the security perimeter.

公开(公告)号：US11777900B2

公开(公告)日：2023-10-03

申请号：US17724941

申请日：2022-04-20

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Yinfang Wang ,  Huimin She ,  Feiliang Wang

IPC: H04L61/5069 ,  H04L41/12 ,  H04L69/22 ,  H04L12/18 ,  H04L101/659

CPC classification number: H04L61/5069 ,  H04L12/185 ,  H04L41/12 ,  H04L69/22 ,  H04L2101/659

Abstract: In one embodiment, a method comprises: receiving, by a root network device providing a DAG topology in a low power and lossy network (LLN), one or more multicast registration messages from an LLN device and identifying distinct properties of the LLN device; receiving, by the root network device, one or more multicast address group identifiers of one or more multicast streams to which the LLN device has subscribed, and associating the one or more multicast address group identifiers with the distinct properties; receiving a multicast message specifying one of the multicast address group identifiers; and generating, by the root network device, a directed multicast message having a multi-dimensional addressing data structure comprising a selected one of the distinct properties and the one multicast address group identifier, causing parent network devices in the DAG topology to selectively retransmit based on determining a child network device has the selected one distinct property.

公开(公告)号：US20230284211A1

公开(公告)日：2023-09-07

申请号：US17683627

申请日：2022-03-01

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Alessandro Erta ,  Amine Choukir ,  Domenico Ficara ,  Patrick Wetterwald

IPC: H04W72/12 ,  H04W68/00 ,  H04W64/00

CPC classification number: H04W72/1268 ,  H04W68/005 ,  H04W64/00 ,  H04W88/08

Abstract: In one embodiment, a controller for an overhead mesh of access points in an area receives an indication from one or more access points of the overhead mesh that a client device is present in the area. The controller determines movements of the client device within the area. The controller selects a set of access points of the overhead mesh to support communications between the client device and the overhead mesh, based on the movements of the client device determined by the controller. The controller causes the controller, the set of access points to form communication schedules to support communications with the client device that do not require a prior association exchange with the client device.

公开(公告)号：US11751156B2

公开(公告)日：2023-09-05

申请号：US17369770

申请日：2021-07-07

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Patrick Wetterwald ,  Jean-Philippe Vasseur ,  Eric Michel Levy-Abegnoli

IPC: H04W56/00 ,  G06F16/901 ,  G06F9/4401

CPC classification number: H04W56/004 ,  G06F16/9024 ,  H04W56/002 ,  H04W56/003 ,  H04W56/0065 ,  G06F9/4401

Abstract: In one embodiment, a method comprises: receiving, by a constrained wireless network device comprising a local clock, a plurality of messages from respective neighboring wireless network devices advertising as available parent devices in a directed acyclic graph of a time-synchronized network that is synchronized to a master clock device; determining, by the constrained wireless network device, a corresponding timing error of the local clock relative to each message output by the corresponding available parent device; and executing, by the constrained wireless network device, a distributed time synchronization of the local clock with the master clock device based on correlating the respective timing errors relative to the local clock.

公开(公告)号：US11743174B2

公开(公告)日：2023-08-29

申请号：US17062061

申请日：2020-10-02

Applicant: Cisco Technology, Inc.

Inventor： Patrick Wetterwald ,  Eric Levy-Abegnoli ,  Pascal Thubert

IPC: H04L45/24 ,  H04L47/2441 ,  H04L9/40 ,  H04L12/46 ,  H04L43/028

CPC classification number: H04L45/24 ,  H04L12/4666 ,  H04L43/028 ,  H04L47/2441 ,  H04L63/0236 ,  H04L63/101

Abstract: In one embodiment, a particular device in a deterministic network performs classification of one or more packets of a traffic flow between a source and a destination in the deterministic network. The particular device determines, based on the classification of the one or more packets, a requirement of the traffic flow. The particular device performs, based on the requirement, a packet operation on at least one packet of the traffic flow. The particular device sends packets of the traffic flow towards the destination via two or more paths in the deterministic network.

公开(公告)号：US11743067B2

公开(公告)日：2023-08-29

申请号：US17457823

申请日：2021-12-06

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Eric M. Levy-Abegnoli ,  Patrick M. P. Wetterwald ,  Ratko Kovacina

IPC: H04L12/18 ,  H04L9/40

CPC classification number: H04L12/1886 ,  H04L12/1881 ,  H04L63/0227

Abstract: A method includes receiving, at a first edge node, an Internet Protocol (IP) multicast address of a first silent host node. The method further includes receiving, at a second edge node, an IP multicast address of a second silent host node. The IP multicast address of the first silent host node is equal to the IP multicast address of the second silent host node. The method further includes storing the IP multicast address of the first and second silent host node in a shared entry of a routing table. The method further includes receiving, at a third edge node, a packet from a third host node and determining that a destination address of the packet corresponds to the IP multicast address stored in the shared entry of the routing table. The method further includes sending the packet to both the first host node and the second host node.

公开(公告)号：US20230269223A1

公开(公告)日：2023-08-24

申请号：US17677599

申请日：2022-02-22

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Jerome Tollet ,  Ali Sajassi ,  Aloÿs Christophe Augustin ,  Nathan Roland Maryan Skrzypczak ,  Stephane Litkowski

IPC: H04L61/5092 ,  H04L61/5061

CPC classification number: H04L61/2092 ,  H04L61/2061 ,  H04L61/6086

Abstract: Systems, methods, and computer-readable media are provided for securely advertising autoconfigured prefixes in a cloud environment. In some examples, a method can include, receiving, by a first router, an indication of an available network address prefix. In some aspects, the method can also include selecting, by the first router, a first network address prefix that is within the available network address prefix, wherein the first network address prefix provides at least one route to one or more network elements associated with the first router. In some cases, the method may further include sending, to a second router, a message including a stub registration option that indicates the first network address prefix.

公开(公告)号：US20230179439A1

公开(公告)日：2023-06-08

申请号：US17457823

申请日：2021-12-06

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Eric M. Levy-Abegnoli ,  Patrick M. P. Wetterwald ,  Ratko Kovacina

IPC: H04L12/18

CPC classification number: H04L12/1886 ,  H04L12/1881 ,  H04L63/0227

Abstract: A method includes receiving, at a first edge node, an Internet Protocol (IP) multicast address of a first silent host node. The method further includes receiving, at a second edge node, an IP multicast address of a second silent host node. The IP multicast address of the first silent host node is equal to the IP multicast address of the second silent host node. The method further includes storing the IP multicast address of the first and second silent host node in a shared entry of a routing table. The method further includes receiving, at a third edge node, a packet from a third host node and determining that a destination address of the packet corresponds to the IP multicast address stored in the shared entry of the routing table. The method further includes sending the packet to both the first host node and the second host node.