Patents by Inventor Sandip Kumar Ghosh

Sandip Kumar Ghosh 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: 10382329
    Abstract: In general, techniques provide a mapping of host devices to different virtual router identifiers used to identify the source MAC address used for forwarding packets to the participating host devices. For example, a method may include receiving an Address Resolution Protocol (ARP) request for a first Internet protocol (IP) address from a host device, the first IP address comprising a virtual IP address of the virtual router. The method may also include determining a virtual router redundancy protocol (VRRP) virtual router identifier (VRID) associated with the first IP address. The method may further include generating a mapping between the host device and the determined VRID. The method may also include determining a virtual source MAC address of the virtual router based on the mapping and forwarding a second packet to the host device that specifies a virtual source MAC address for the second packet.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: August 13, 2019
    Assignee: Juniper Networks, Inc.
    Inventors: Reji Thomas, Sandip Kumar Ghosh, Jimmy Jose
  • Patent number: 10291554
    Abstract: A device may determine first configuration information associated with configuring a chassis. The device may configure the chassis in a first mode using the first configuration information to cause the chassis to perform routing for a network. The device may determine, after a first period of routing for the network, second configuration information associated with configuring the chassis. The second configuration information may relate to utilizing one or more computing resources of a server device external to the chassis to perform routing for the chassis. The device may configure the chassis in a second mode using the second configuration information to cause the chassis to perform, in a second period, routing for the network.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: May 14, 2019
    Assignee: Juniper Networks, Inc.
    Inventor: Sandip Kumar Ghosh
  • Patent number: 10263832
    Abstract: In some examples, a computing device includes one or more processors and a physical interface device (IFD) connected to one or more of the processors. One or more of the processors are configured to detect a change in physical link status for a physical link in a network interface card, receive a list of active virtual machines associated with the physical link, and transmit a virtual IFD status notification message to the active virtual machines of virtual IFDs impacted by the physical link status change, the virtual IFD status notification message identifying the physical link status change.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: April 16, 2019
    Assignee: Juniper Networks, Inc.
    Inventor: Sandip Kumar Ghosh
  • Patent number: 10250497
    Abstract: A first network device may activate the first network device as being associated with a Virtual Router Redundancy Protocol (VRRP) group. The first network device may receive, from a second network device, a duplicate address detection message. The first network device may compare a data link layer address associated with the duplicate address detection message and a Virtual Media Access Control (VMAC) address of the VRRP group. The first network device may disregard the duplicate address detection message after comparing the data link layer address and the VMAC address of the VRRP group.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: April 2, 2019
    Assignee: Juniper Networks, Inc.
    Inventors: Jimmy Jose, Reji Thomas, Sandip Kumar Ghosh
  • Patent number: 10033667
    Abstract: A configurable advertisement count and skew timer in a virtual router can be used to improve the speed with which a backup virtual router assumes the role of master upon the master router's failure. Enhanced VRRP packets having a type other than one may be used to cause MAC address movement from a failed master router to a backup router assuming the role of master router without placing an undue load on other routers in the network, such as by dropping the enhanced VRRP packets having a type other than one without processing the packets in the control plane of a receiving virtual router.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: July 24, 2018
    Assignee: Juniper Networks, Inc.
    Inventor: Sandip Kumar Ghosh
  • Patent number: 9100274
    Abstract: A configurable advertisement count and skew timer in a virtual router can be used to improve the speed with which a backup virtual router assumes the role of master upon the master router's failure. Enhanced VRRP packets having a type other than one may be used to cause MAC address movement from a failed master router to a backup router assuming the role of master router without placing an undue load on other routers in the network, such as by dropping the enhanced VRRP packets having a type other than one without processing the packets in the control plane of a receiving virtual router.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: August 4, 2015
    Assignee: Juniper Networks, Inc.
    Inventor: Sandip Kumar Ghosh