公开(公告)号：US10270690B2

公开(公告)日：2019-04-23

申请号：US15056483

申请日：2016-02-29

Applicant: Cisco Technology, Inc.

Inventor： Carlos Pignataro ,  Richard Furr ,  Nagendra Kumar Nainar ,  Joseph Michael Clarke

IPC: H04L12/741 ,  H04L12/26

Abstract: Presented herein are methods and systems that facilitate data plane signaling of a packet as a candidate for capture at various network nodes within an IPv6 network. The signaling occurs in-band, via the data plane—that is, a capture or interrogation signal is embedded within the respective packet (e.g., in the packet header) that carries a user traffic. The signaling is inserted, preferably when the packet is classified, e.g., at the ingress node of the network, to which subsequent network nodes with the IPv6 network are signaled to capture or further inspect the packet for capture.

公开(公告)号：US20170250908A1

公开(公告)日：2017-08-31

申请号：US15056502

申请日：2016-02-29

Applicant: Cisco Technology, Inc.

Inventor： Nagendra Kumar Nainar ,  Richard Furr ,  Carlos Pignataro ,  Joseph Michael Clarke

IPC: H04L12/741 ,  H04L12/46 ,  H04L12/723 ,  H04L12/715

CPC classification number: H04L45/74 ,  H04L12/4633 ,  H04L12/4641 ,  H04L45/04 ,  H04L45/50 ,  H04L45/566 ,  H04L45/64 ,  H04L45/66

Abstract: Presented herein are segment-routing methods and systems that facilitate data plane signaling of a packet as a candidate for capture at various network nodes within a segment routing (SR) network. The signaling occurs in-band, via the data plane—that is, a capture or interrogation signal is embedded within the respective packet that carries a user traffic. The signaling is inserted, preferably when the packet is classified, e.g., at the ingress node of the network, to which subsequent network nodes with the SR network are signaled to capture or further inspect the packet for capture.

公开(公告)号：US20170250907A1

公开(公告)日：2017-08-31

申请号：US15056483

申请日：2016-02-29

Applicant: Cisco Technology, Inc.

Inventor： Carlos Pignataro ,  Richard Furr ,  Nagendra Kumar Nainar ,  Joseph Michael Clarke

IPC: H04L12/741

CPC classification number: H04L45/74 ,  H04L43/028 ,  H04L43/04 ,  H04L43/10

Abstract: Presented herein are methods and systems that facilitate data plane signaling of a packet as a candidate for capture at various network nodes within an IPv6 network. The signaling occurs in-band, via the data plane—that is, a capture or interrogation signal is embedded within the respective packet (e.g., in the packet header) that carries a user traffic. The signaling is inserted, preferably when the packet is classified, e.g., at the ingress node of the network, to which subsequent network nodes with the IPv6 network are signaled to capture or further inspect the packet for capture.

公开(公告)号：US20250117807A1

公开(公告)日：2025-04-10

申请号：US18481136

申请日：2023-10-04

Applicant: Cisco Technology, Inc.

Inventor： Marcelo Yannuzzi ,  Carlos Pignataro

IPC: G06Q30/018

Abstract: Devices, systems, methods, and processes for generating and sharing a verifiable Zero Knowledge (ZK) proof are described herein. A device may utilize one or more non-reversible aggregation techniques to receive, normalize, and aggregate one or more Carbon Footprint Metrics (CFMs) of the device corresponding to a timeframe. The device can generate a ZK attestation and the verifiable ZK proof based on an aggregated CFM or a sum of normalized CFMs, and a carbon footprint threshold for the timeframe. The device may further transmit the verifiable ZK proof to an auditing device. The auditing device can receive the verifiable ZK proof and verify, in a trustworthy manner, that the CFMs of the device corresponding to the timeframe are in compliance with the carbon footprint threshold. The device may hence prove the compliance with the carbon footprint threshold to the auditing device without actually sharing the CFMs with the auditing device.

公开(公告)号：US20250080464A1

公开(公告)日：2025-03-06

申请号：US18462209

申请日：2023-09-06

Applicant: Cisco Technology, Inc.

Inventor： Carlos Pignataro ,  Pascal Thubert ,  Eric A. Voit ,  Nagendra Kumar Nainar

IPC: H04L47/127 ,  H04L47/2425

Abstract: Described herein are devices, systems, methods, and processes for optimizing network traffic distribution across multiple paths in a manner that is energy-efficient and environmental sustainability-aware. This may be achieved by leveraging time-series analytics and capacity planning based on seasonalities. Data associated with the Layer 3 topology of the network can be collected. Bandwidth can be pre-reserved on an energy-aware traffic engineering tunnel. The time-series data can be used to build a capacity plan based on the seasonalities. Nodes may be clustered based on usage patterns and network utilization seasonality. The data can be used to make decisions about when and where to combine or shut down paths for energy efficiency, while maintaining optimal network performance. A hysteresis mechanism may be incorporated to avoid oscillation when changing active links. Power savings can be achieved by fully turning off or depowering certain network components when they are not needed.

公开(公告)号：US20250039048A1

公开(公告)日：2025-01-30

申请号：US18649814

申请日：2024-04-29

Applicant: Cisco Technology, Inc.

Inventor： Carlos Pignataro ,  Pascal Thubert ,  Eric A. Voit

IPC: H04L41/0833 ,  H04L43/08

Abstract: Described herein are devices, systems, methods, and processes for managing power congestion in multi-path routing systems. Indications may be similar to the ECN, and may be used in network headers, including headers for IPV6, SRv6, NSH, or other tunneling protocols. The indications, namely EOPN, PTE, and ECMP-exclude, can provide a mechanism for managing network power consumption and controlling ECMP routing based on flow priority and characteristics. The power budget can be dynamically adjusted based on the current power source mix, which may help to achieve sustainability goals. Hashing optimizations and signaling can be utilized to manage network power congestion and bandwidth-normalized power efficiency availability. A process may be implemented to ensure there is sufficient capacity to serve the expected traffic for different next-hop paths. Additionally, the ECN can be used to quickly react to congestion, bring capacity back online, and maintain optimal network performance, even in the absence of congestion.

公开(公告)号：US20240414102A1

公开(公告)日：2024-12-12

申请号：US18331681

申请日：2023-06-08

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Carlos Pignataro ,  Ayan Banerjee

IPC: H04L47/70 ,  H04L47/125

Abstract: Devices, systems, methods, and processes for sustainably operating a plurality of network planes via de-energization and re-energization is described herein. In many network configurations, a plurality of planes exist that allow for more modular connections in a network fabric. Often, these planes are configured such that each plane is not directly connected to another plane. Because of this, various embodiments described herein can evaluate network conditions and determine if there are conditions suitable to de-energize a plane by either directing the plane to enter a lower-power mode, by shutting off the plane, or disconnecting the available power. This de-energization period can be for a period of time or can occur until a triggering event is detected that indicates that the plane should be re-energized. These determinations can be done based on current traffic trends or historical conditions. They may also be heuristic-based or generated via one or more machine-learning processes.

公开(公告)号：US20240333876A1

公开(公告)日：2024-10-03

申请号：US18194353

申请日：2023-03-31

Applicant: Cisco Technology, Inc.

Inventor： Carlos Pignataro ,  Nagendra Kumar Nainar

IPC: H04N7/15 ,  G06F3/01 ,  G06V20/40

CPC classification number: H04N7/157 ,  G06F3/017 ,  G06V20/44 ,  H04N7/152

Abstract: Devices, systems, methods, and processes for dynamically reducing the size of a video transmission are described herein. An energy-saving video transmission device can include a controller, a memory, a communication port coupled with at least a second device, and a virtual meeting logic configured to establish a virtual meeting with a video transmission. The video transmission is transmitted to at least the second device. The virtual meeting logic can determine a virtual meeting configuration and collect sustainability attributes data. Based on the collected data, an energy-saving video transmission rate can be selected. Often, this can indicate how often to capture and transmit keyframes of the video transmission instead of the entire video transmission. Finally, based on the energy-saving video transmission rate, a reduced size video transmission can be transmitted over a network. Subsequently, additional events can be detected that allow for the dynamic adjustment of the energy-saving video transmission rate.

公开(公告)号：US20240333590A1

公开(公告)日：2024-10-03

申请号：US18194253

申请日：2023-03-31

Applicant: Cisco Technology, Inc.

Inventor： Carlos Pignataro ,  Pascal Thubert ,  Eric A Voit ,  Nagendra Kumar Nainar ,  Marcelo Yannuzzi

IPC: H04L41/0833 ,  H04L41/12

CPC classification number: H04L41/0833 ,  H04L41/12

Abstract: A network of devices can be stabilized by administering an energy-aware topology that corresponds to a desired state derived in part from one or more sustainability metrics. Devices suitable for stabilization can include a processor, a memory, a plurality of elements, a communication port coupled with one or more neighboring devices, and an energy-aware topology logic. The energy-aware topology logic can monitor incoming traffic from one or more neighboring devices, receive current state data associated with the plurality of elements, and receive update data from the one or more neighboring devices via a sustainability-related augmented IGP. Also, the energy-aware topology logic can generate a desired state for the device based on at least the received current state data and update data. One or more of the plurality of elements may be modified in response to the generated desired state, wherein the modification involves changing one or more sustainability-related capabilities.

公开(公告)号：US10270691B2

公开(公告)日：2019-04-23

申请号：US15056502

申请日：2016-02-29

Applicant: Cisco Technology, Inc.

Inventor： Nagendra Kumar Nainar ,  Richard Furr ,  Carlos Pignataro ,  Joseph Michael Clarke

IPC: H04L12/741 ,  H04L12/715 ,  H04L12/46 ,  H04L12/723

Abstract: Presented herein are segment-routing methods and systems that facilitate data plane signaling of a packet as a candidate for capture at various network nodes within a segment routing (SR) network. The signaling occurs in-band, via the data plane—that is, a capture or interrogation signal is embedded within the respective packet that carries a user traffic. The signaling is inserted, preferably when the packet is classified, e.g., at the ingress node of the network, to which subsequent network nodes with the SR network are signaled to capture or further inspect the packet for capture.