-
公开(公告)号:US20210377157A1
公开(公告)日:2021-12-02
申请号:US16890241
申请日:2020-06-02
Applicant: Cisco Technology, Inc.
Inventor: Li Zhao , Chuanwei Li , Lele Zhang , Haibo Dong , Akram Ismail Sheriff
IPC: H04L12/707 , H04L12/751 , H04W28/10 , H04L12/803
Abstract: Techniques for distributed sub-controller permission for control of data-traffic flow within software-defined networking (SDN) mesh networks to limit control plane traffic of the network are described herein. A technique described herein includes a network node of a data-traffic path of an SDN mesh network obtaining SDN sub-controller permission from a border controller of the SDN mesh network. Further, the technique includes suppression of data traffic from sibling and children nodes of data-traffic path allied nodes to the data-traffic path allied nodes. The data-traffic path allied nodes include network nodes that are part of the data-traffic path of the SDN mesh network. Further still, the technique includes the transmission of data across the data-traffic path.
-
公开(公告)号:US20200296001A1
公开(公告)日:2020-09-17
申请号:US16353137
申请日:2019-03-14
Applicant: Cisco Technology, Inc.
Inventor: Huimin She , Li Zhao , Nan Yi , Haibo Dong
IPC: H04L12/24 , H04L12/751 , H04L12/703 , H04L29/12 , H04L12/44
Abstract: In one embodiment, a device in a mesh network rooted at a root node receives a subroot selection notification. The subroot selection notification indicates that the device should function as a root of a sub-directed acyclic graph (DAG) were a power outage to occur. The device determines that a power outage has occurred. The device forms, after determining that a power outage has occurred, a sub-DAG that is rooted at the device by establishing one or more other devices in the mesh network as routing children of the device in the sub-DAG. The device joins the sub-DAG to a DAG rooted at the root node.
-
公开(公告)号:US11811648B2
公开(公告)日:2023-11-07
申请号:US17903615
申请日:2022-09-06
Applicant: Cisco Technology, Inc.
Inventor: Li Zhao , Chuanwei Li , Lele Zhang , Haibo Dong , Akram Ismail Sheriff
IPC: H04L45/24 , H04L45/02 , H04L47/122 , H04W28/10 , H04W84/18
CPC classification number: H04L45/24 , H04L45/02 , H04L47/122 , H04W28/10 , H04W84/18
Abstract: Techniques for distributed sub-controller permission for control of data-traffic flow within software-defined networking (SDN) mesh networks to limit control plane traffic of the network are described herein. A technique described herein includes a network node of a data-traffic path of an SDN mesh network obtaining SDN sub-controller permission from a border controller of the SDN mesh network. Further, the technique includes suppression of data traffic from sibling and children nodes of data-traffic path allied nodes to the data-traffic path allied nodes. The data-traffic path allied nodes include network nodes that are part of the data-traffic path of the SDN mesh network. Further still, the technique includes the transmission of data across the data-traffic path.
-
公开(公告)号:US20220417135A1
公开(公告)日:2022-12-29
申请号:US17903615
申请日:2022-09-06
Applicant: Cisco Technology, Inc.
Inventor: Li Zhao , Chuanwei Li , Lele Zhang , Haibo Dong , Akram Sheriff
IPC: H04L45/24 , H04L45/02 , H04L47/122 , H04W28/10 , H04W84/18
Abstract: Techniques for distributed sub-controller permission for control of data-traffic flow within software-defined networking (SDN) mesh networks to limit control plane traffic of the network are described herein. A technique described herein includes a network node of a data-traffic path of an SDN mesh network obtaining SDN sub-controller permission from a border controller of the SDN mesh network. Further, the technique includes suppression of data traffic from sibling and children nodes of data-traffic path allied nodes to the data-traffic path allied nodes. The data-traffic path allied nodes include network nodes that are part of the data-traffic path of the SDN mesh network. Further still, the technique includes the transmission of data across the data-traffic path.
-
公开(公告)号:US10904097B2
公开(公告)日:2021-01-26
申请号:US16353137
申请日:2019-03-14
Applicant: Cisco Technology, Inc.
Inventor: Huimin She , Li Zhao , Nan Yi , Haibo Dong
IPC: H04L12/24 , H04L12/44 , H04L12/703 , H04L29/12 , H04L12/751
Abstract: In one embodiment, a device in a mesh network rooted at a root node receives a subroot selection notification. The subroot selection notification indicates that the device should function as a root of a sub-directed acyclic graph (DAG) were a power outage to occur. The device determines that a power outage has occurred. The device forms, after determining that a power outage has occurred, a sub-DAG that is rooted at the device by establishing one or more other devices in the mesh network as routing children of the device in the sub-DAG. The device joins the sub-DAG to a DAG rooted at the root node.
-
公开(公告)号:US20220353149A1
公开(公告)日:2022-11-03
申请号:US17246301
申请日:2021-04-30
Applicant: Cisco Technology, Inc.
Inventor: Lele Zhang , Li Zhao , Haibo Dong , Yihua Dai
Abstract: Techniques are described for managing devices using multiple virtual personal area networks (VPANs). A border router can receive a first request to join a network from a first device. The first device may be assigned to a first virtual personal area network (VPAN), which has an associated first group temporal key (GTK). The first GTK can be distributed to the first virtual device. The border router can also receive a second request to join a network from a second device. The second device may be assigned to a second VPAN, which has an associated second GTK. The second GTK can be distributed to the second virtual device.
-
公开(公告)号:US11489762B2
公开(公告)日:2022-11-01
申请号:US16890241
申请日:2020-06-02
Applicant: Cisco Technology, Inc.
Inventor: Li Zhao , Chuanwei Li , Lele Zhang , Haibo Dong , Akram Ismail Sheriff
IPC: H04L45/24 , H04L45/02 , H04L47/122 , H04W28/10 , H04W84/18
Abstract: Techniques for distributed sub-controller permission for control of data-traffic flow within software-defined networking (SDN) mesh networks to limit control plane traffic of the network are described herein. A technique described herein includes a network node of a data-traffic path of an SDN mesh network obtaining SDN sub-controller permission from a border controller of the SDN mesh network. Further, the technique includes suppression of data traffic from sibling and children nodes of data-traffic path allied nodes to the data-traffic path allied nodes. The data-traffic path allied nodes include network nodes that are part of the data-traffic path of the SDN mesh network. Further still, the technique includes the transmission of data across the data-traffic path.
-
公开(公告)号:US11245678B2
公开(公告)日:2022-02-08
申请号:US16432661
申请日:2019-06-05
Applicant: Cisco Technology, Inc.
Inventor: Li Zhao , Pascal Thubert , Huimin She , Haibo Dong
IPC: H04L29/06 , H04W40/02 , H04W28/02 , H04W12/033
Abstract: In one embodiment, a method comprises: registering, by a root network device in a low power and lossy network, a constrained network device that is reachable within the low power and lossy network; obtaining, by the root network device, executable code associated with execution of a network service operation by the constrained network device; receiving a data packet from a source device and destined for the constrained network device; and causing execution on the data packet, by the root network device, of the network service operation on behalf of the constrained network device in response to reception of the data packet.
-
公开(公告)号:US12185092B2
公开(公告)日:2024-12-31
申请号:US17563646
申请日:2021-12-28
Applicant: Cisco Technology, Inc.
Inventor: Li Zhao , Pascal Thubert , Huimin She , Haibo Dong
IPC: H04L9/40 , H04W12/033 , H04W28/02 , H04W40/02
Abstract: In one embodiment, a method comprises: registering, by a root network device in a low power and lossy network, a constrained network device that is reachable within the low power and lossy network; obtaining, by the root network device, executable code associated with execution of a network service operation by the constrained network device; receiving a data packet from a source device and destined for the constrained network device; and causing execution on the data packet, by the root network device, of the network service operation on behalf of the constrained network device in response to reception of the data packet.
-
公开(公告)号:US11677630B2
公开(公告)日:2023-06-13
申请号:US17246301
申请日:2021-04-30
Applicant: Cisco Technology, Inc.
Inventor: Lele Zhang , Li Zhao , Haibo Dong , Yihua Dai
CPC classification number: H04L41/12 , H04L63/062 , H04L63/065 , H04L63/0892
Abstract: Techniques are described for managing devices using multiple virtual personal area networks (VPANs). A border router can receive a first request to join a network from a first device. The first device may be assigned to a first virtual personal area network (VPAN), which has an associated first group temporal key (GTK). The first GTK can be distributed to the first virtual device. The border router can also receive a second request to join a network from a second device. The second device may be assigned to a second VPAN, which has an associated second GTK. The second GTK can be distributed to the second virtual device.
-
-
-
-
-
-
-
-
-