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公开(公告)号：US20210173726A1
公开(公告)日：2021-06-10
申请号：US17103061
申请日：2020-11-24
Applicant: Cisco Technology, Inc.
Inventor： Nivin Lawrence , Sandesh K. Rao , Manikandan Veerachamy , Amit Chandra , Tushar Sinha , Manoj Kumar , David W. Duffey
IPC: G06F9/54
Abstract: The present disclosure is directed to migrating logical volumes from a thick provisioned layout to a thin provisioned layout, and includes one or more processors and one or more computer-readable non-transitory storage media comprising instructions that, when executed by the one or more processors, cause one or more components of the system to perform operations comprising creating an abstraction layer on top of a logical volume in a storage device, the abstraction layer for accessing the logical volume, the logical volume one of a plurality of logical volumes in a volume group of the storage device; allocating a thin pool from remaining storage space in the volume group of the storage device; creating a snapshot of the logical volume; adding a thin virtual volume corresponding to the logical volume to the thin pool; and copying data from the snapshot to the thin virtual volume.
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12.发明申请公开(公告)号：US20200252889A1
公开(公告)日：2020-08-06
申请号：US16435946
申请日：2019-06-10
Applicant: Cisco Technology, Inc.
Inventor： Prashant Anand , Manoj Kumar , Sudhir Kayamkulangara , Dinuraj K , Manigandan Boopalan
Abstract: Techniques that provide link auto-negotiation between a radio equipment controller (REC) and a radio equipment (RE) are described herein. In one embodiment, a method includes performing, by a proxy master, a Common Public Radio Interface (CPRI) Layer 1 (L1) link auto-negotiation with a RE to achieve a L1 synchronization between the proxy master and the RE at a link bit rate; communicating the link bit rate from the proxy master to a proxy slave; performing, by the proxy slave, a CPRI L1 link auto-negotiation with a REC to determine whether a L1 synchronization between the proxy slave and the REC is achieved, wherein if the L1 synchronization is achieved, the link bit rate is a common matching link bit rate achieved; and upon the common matching link bit rate being achieved, establishing a CPRI link between the REC and the RE using the common matching link bit rate.
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公开(公告)号：US12192062B2
公开(公告)日：2025-01-07
申请号：US17955812
申请日：2022-09-29
Applicant: Cisco Technology, Inc.
Inventor： Piotr Jerzy Kupisiewicz , Olaf Meller , Michael Chomicz , Radoslaw Konrad Ruchala , Manoj Kumar , David Pryor
IPC: H04L41/12 , G06F16/901 , H04L41/0859 , H04L41/22
Abstract: Methods are presented herein for a reduced state machine that describes nodes and relationship dynamics representing real network elements (networking devices and software processes) in a computer/data network, and abstracted logical items. Logical states of networking features of the network elements are reflected in the graph, while configuration data is stored for completeness. A method called a “Versioner Algorithm” is provided to record the temporal history of a node and its state over time within the node's metadata itself, while recorded relationships represent logical relations between observed nodes. A method is also provided to time-travel back to observe a historical view of the network. Further still, a method is provided to a difference of two historical topologies and return that data in human-readable or machine consumable form.
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公开(公告)号：US20220377692A1
公开(公告)日：2022-11-24
申请号：US17881043
申请日：2022-08-04
Applicant: Cisco Technology, Inc.
Inventor： Prashant Anand , Manoj Kumar , Sudhir Kayamkulangara , Dinuraj K , Manigandan Boopalan
Abstract: Techniques that provide link establishment between a radio equipment controller (REC) and a radio equipment (RE) in a fronthaul network are described herein. In one embodiment, a method includes performing, Common Public Radio Interface (CPRI) Layer 1 (L1) link auto-negotiation operations to establish a CPRI link between the REC and RE. A proxy slave may achieve a hyper frame number (HFN) synchronization with the REC at a link bit rate for a first CPRI bit stream and communicate the first CPRI bit stream and the link bit rate to a proxy master. The proxy master may communicate a second CPRI bit stream to the proxy slave to transmit to the REC. The L1 link auto-negotiation operations are completed and CPRI link is established between the REC and the RE when the REC achieves a HFN synchronization for the second CPRI bit stream.
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15.发明申请公开(公告)号：US20220342730A1
公开(公告)日：2022-10-27
申请号：US17860719
申请日：2022-07-08
Applicant: Cisco Technology, Inc.
Inventor： Nivin Lawrence , Sandesh K. Rao , Manikandan Veerachamy , Amit Chandra , Tushar Sinha , Manoj Kumar , David W. Duffey
IPC: G06F9/54
Abstract: The present disclosure is directed to seamless access to a common physical disk in an AMP system without an external hypervisor, and includes one or more processors and one or more computer-readable non-transitory storage media comprising instructions that, when executed by the one or more processors, cause one or more components of the system to perform operations including instantiating, by a first instance, a second instance during a system upgrade, creating, in the first instance, a first disk abstraction for a block device of a physical disk, and attaching the block device under the first disk abstraction. The operations further include providing the second instance network-based access to the physical disk using the first disk abstraction of the first instance during the system upgrade.
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Patent Agency Ranking
公开(公告)号：US11206557B2
公开(公告)日：2021-12-21
申请号：US16543344
申请日：2019-08-16
Applicant: Cisco Technology, Inc.
Inventor： Prashant Anand , Manoj Kumar , Sudhir Kayamkulangara , Manigandan Boopalan , Dinuraj K
Abstract: In a fronthaul network system, when a CPRI link fault is detected at either of the REC or RE, both the REC and RE perform a Layer 1 synchronization. The fault may be a loss of signal, loss of frame, or a line code violation, which also translates to a loss of signal if seen beyond a threshold. A proxy slave recognizes the fault in a CPRI signal from a first radio device and inserts the fault alarm into a header of a radio over Ethernet frame. The proxy slave continues to communicate the signal for a configured number of hyper-frames. A proxy master receives the signal and communicates the signal and the fault alarm to a receiving radio device for a configured number of hyper-frames. The proxy and radio devices all perform a joint resynchronization.
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公开(公告)号：US11122346B1
公开(公告)日：2021-09-14
申请号：US16912238
申请日：2020-06-25
Applicant: Cisco Technology, Inc.
Inventor： Manoj Kumar , Sujal Sheth , Zafar Ali , Eric Voit , Shwetha Subray Bhandari
Abstract: The present technology discloses methods, systems, and non-transitory computer-readable media for receiving, by a relying node in an optical transport network environment, attestation information in a trail trace identifier of an optical unit from an attester node in the optical transport network environment; verifying a trustworthiness of the attester node by identifying a level of trust of the attester node from the attestation information; and controlling network service access of the attester node through the relying node in the network environment based on the level of trust of the attester node identified from the attestation information.
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公开(公告)号：US11601899B2
公开(公告)日：2023-03-07
申请号：US17881043
申请日：2022-08-04
Applicant: Cisco Technology, Inc.
Inventor： Prashant Anand , Manoj Kumar , Sudhir Kayamkulangara , Dinuraj K , Manigandan Boopalan
Abstract: Techniques that provide link establishment between a radio equipment controller (REC) and a radio equipment (RE) in a fronthaul network are described herein. In one embodiment, a method includes performing, Common Public Radio Interface (CPRI) Layer 1 (L1) link auto-negotiation operations to establish a CPRI link between the REC and RE. A proxy slave may achieve a hyper frame number (HFN) synchronization with the REC at a link bit rate for a first CPRI bit stream and communicate the first CPRI bit stream and the link bit rate to a proxy master. The proxy master may communicate a second CPRI bit stream to the proxy slave to transmit to the REC. The L1 link auto-negotiation operations are completed and CPRI link is established between the REC and the RE when the REC achieves a HFN synchronization for the second CPRI bit stream.
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公开(公告)号：US20220232499A1
公开(公告)日：2022-07-21
申请号：US17714540
申请日：2022-04-06
Applicant: Cisco Technology, Inc.
Inventor： Prashant Anand , Manoj Kumar , Sudhir Kayamkulangara , Dinuraj K , Manigandan Boopalan
Abstract: Techniques that provide link establishment between a radio equipment controller (REC) and a radio equipment (RE) in a fronthaul network are described herein. In one embodiment, a method includes performing, Common Public Radio Interface (CPRI) Layer 1 (L1) link auto-negotiation operations to establish a CPRI link between the REC and RE. A proxy slave may achieve a hyper frame number (HFN) synchronization with the REC at a link bit rate for a first CPRI bit stream and communicate the first CPRI bit stream and the link bit rate to a proxy master. The proxy master may communicate a second CPRI bit stream to the proxy slave to transmit to the REC. The L1 link auto-negotiation operations are completed and CPRI link is established between the REC and the RE when the REC achieves a HFN synchronization for the second CPRI bit stream.
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公开(公告)号：US20210084541A1
公开(公告)日：2021-03-18
申请号：US16906315
申请日：2020-06-19
Applicant: Cisco Technology, Inc.
Inventor： Prashant Anand , Manoj Kumar , Sudhir Kayamkulangara , Dinuraj K , Manigandan Boopalan
Abstract: Techniques are described to provide for state machine handling at a proxy node in an Ethernet-based fronthaul network. In one example, a method includes performing, by a proxy node of a fronthaul network, negotiation operations associated with establishing a Common Public Radio Interface (CPRI) communication link between radio devices of the fronthaul network, wherein the negotiation operations comprise Layer 1 synchronization operations and Radio over Ethernet (RoE) validation operations for one or more link bit rates; and facilitating communications between the radio devices at a matching link bit rate upon completion of the negotiation operations.
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