Patents by Inventor Raghu R. Arur

Raghu R. Arur has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11522749
    Abstract: A method that includes retrieving a first list of routing prefixes learned by a border node in a first network fabric and retrieving a second list comprising addresses of nodes in a second network fabric. The method also includes generating a dependency mapping based on the routing prefixes in the first list and the addresses in the second list. The dependency mapping indicates that network traffic to the addresses of the nodes in the second network fabric is affected by the border node in the first network fabric. The method further includes, in response to detecting that the border node in the first network fabric has malfunctioned and based on the dependency mapping, generating an alert indicating that network traffic to the addresses of the nodes in the second network fabric is affected by the border node in the first network fabric malfunctioning.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: December 6, 2022
    Assignee: Cisco Technology, Inc.
    Inventors: Vandana Kaushal, Raghu R. Arur, Rachana A. Soni
  • Publication number: 20220224592
    Abstract: A method that includes retrieving a first list of routing prefixes learned by a border node in a first network fabric and retrieving a second list comprising addresses of nodes in a second network fabric. The method also includes generating a dependency mapping based on the routing prefixes in the first list and the addresses in the second list. The dependency mapping indicates that network traffic to the addresses of the nodes in the second network fabric is affected by the border node in the first network fabric. The method further includes, in response to detecting that the border node in the first network fabric has malfunctioned and based on the dependency mapping, generating an alert indicating that network traffic to the addresses of the nodes in the second network fabric is affected by the border node in the first network fabric malfunctioning.
    Type: Application
    Filed: January 11, 2021
    Publication date: July 14, 2022
    Inventors: Vandana KAUSHAL, Raghu R. ARUR, Rachana A. SONI
  • Patent number: 11012315
    Abstract: Embodiments herein describe techniques for creating a lightweight snapshot of a network fabric without having to capture snapshots at a predefined interval. Instead, the snapshot system uses a data store to capture state changes to network objects in the network fabric. Because the data store captures these state changes (along with timestamps indicating when these changes occurred), the snapshot system can retroactively generate snapshots of the network fabric at any desired time. In one embodiment, the snapshot system includes an event detector that determines when to capture snapshots. Once an event is identified by the event detector, the snapshot system can use the historical changes in the data store to retroactively generate a first snapshot to capture the overall state of the network fabric before the event and a second snapshot to capture the overall state of the network fabric after the event.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: May 18, 2021
    Assignee: Cisco Technology, Inc.
    Inventors: Raghu R. Arur, Rachana A. Soni
  • Publication number: 20200382378
    Abstract: Embodiments herein describe techniques for creating a lightweight snapshot of a network fabric without having to capture snapshots at a predefined interval. Instead, the snapshot system uses a data store to capture state changes to network objects in the network fabric. Because the data store captures these state changes (along with timestamps indicating when these changes occurred), the snapshot system can retroactively generate snapshots of the network fabric at any desired time. In one embodiment, the snapshot system includes an event detector that determines when to capture snapshots. Once an event is identified by the event detector, the snapshot system can use the historical changes in the data store to retroactively generate a first snapshot to capture the overall state of the network fabric before the event and a second snapshot to capture the overall state of the network fabric after the event.
    Type: Application
    Filed: July 12, 2019
    Publication date: December 3, 2020
    Inventors: Raghu R. ARUR, Rachana A. SONI
  • Patent number: 10248660
    Abstract: Embodiments of the present invention provide a mechanism for converting an existing mirror relationship between an original dataset at a source storage system and a copy of the original dataset at a destination system to a new mirror without discarding the existing copy of the original dataset and without transferring data to create a new dataset to replace the copy of the original dataset at the destination storage system. Rather, a directory structure (including file attributes) of the source storage system is transferred to the destination storage system and a comparison is made to identify file attributes at the destination system that match the transferred file attributes. If a match is found, a mapping between the matched file attributes is created. Subsequent updates to the to destination storage system can be done using a technique other than the one that was used to create a copy of the source dataset.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: April 2, 2019
    Assignee: NetApp Inc.
    Inventors: Vikas Yadav, Raghu R. Arur, Amol Chitre
  • Publication number: 20170169053
    Abstract: Embodiments of the present invention provide a mechanism for converting an existing mirror relationship between an original dataset at a source storage system and a copy of the original dataset at a destination system to a new mirror without discarding the existing copy of the original dataset and without transferring data to create a new dataset to replace the copy of the original dataset at the destination storage system. Rather, a directory structure (including file attributes) of the source storage system is transferred to the destination storage system and a comparison is made to identify file attributes at the destination system that match the transferred file attributes. If a match is found, a mapping between the matched file attributes is created. Subsequent updates to the to destination storage system can be done using a technique other than the one that was used to create a copy of the source dataset.
    Type: Application
    Filed: February 13, 2017
    Publication date: June 15, 2017
    Inventors: Vikas Yadav, Raghu R. Arur, Amol Chitre
  • Patent number: 9569460
    Abstract: Embodiments of the present invention provide a mechanism for converting an existing mirror relationship between an original dataset at a source storage system and a copy of the original dataset at a destination system to a new mirror without discarding the existing copy of the original dataset and without transferring data to create a new dataset to replace the copy of the original dataset at the destination storage system. Rather, a directory structure (including file attributes) of the source storage system is transferred to the destination storage system and a comparison is made to identify file attributes at the destination system that match the transferred file attributes. If a match is found, a mapping between the matched file attributes is created. Subsequent updates to the destination storage system can be done using a technique other than the one that was used to create a copy of the source dataset.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: February 14, 2017
    Assignee: NetApp, Inc.
    Inventors: Vikas Yadav, Raghu R. Arur, Amol Chitre
  • Patent number: 7865475
    Abstract: Embodiments of the present invention provide a mechanism for converting an existing mirror relationship between an original dataset at a source storage system and a copy of the original dataset at a destination system to a new mirror without discarding the existing copy of the original dataset and without transferring data to create a new dataset to replace the copy of the original dataset at the destination storage system. Rather, a directory structure (including file attributes) of the source storage system is transferred to the destination storage system and a comparison is made to identify file attributes at the destination system that match the transferred file attributes. If a match is found, a mapping between the matched file attributes is created. Subsequent updates to the destination storage system can be done using a technique other than the one that was used to create a copy of the source dataset.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: January 4, 2011
    Assignee: NetApp, Inc.
    Inventors: Vikas Yadav, Raghu R. Arur, Amol Chitre