Patents by Inventor Udaya N. Shankar

Udaya N. Shankar 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: 10270622
    Abstract: Embodiments herein include systems and methods for providing a mechanism to enable smooth, seamless, and reliable connectivity for wireless devices in a unified network. The system supports roaming of mobile units across mobility switches. A given mobile unit can retain its IP address in both intra-subnet and inter-subnet roaming scenarios. The given mobile unit also retains its membership to a mobility VLAN to which it had been assigned, even during roaming scenarios. Embodiments include a framework for wireless switches to advertise VLANs they support to peer wireless switches in the mobility domain, and to advertise their capability to act as VLAN servers for those VLANs. Embodiments support VLAN membership management capabilities that allow access points and peer wireless switches to request wireless switches to add VLANs to the tunnels they share.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: April 23, 2019
    Assignee: Avaya Inc.
    Inventors: Vivek L. Atreya, Shashi H. Ankaiah, Seemant Choudhary, Kumar Das Karunakaran, Udaya N. Shankar
  • Patent number: 8380819
    Abstract: Techniques disclosed herein include systems and methods for providing a mechanism to enable smooth, seamless, and reliable connectivity for wireless devices in a unified network, such as networks that apply a given security policy to both wired and wireless devices. The system supports roaming of mobile units across mobility switches. A given mobile unit can retain its IP address in both intra-subnet and inter-subnet roaming scenarios. The given mobile unit also retains its membership to a mobility VLAN to which the mobile unit had been assigned, even during roaming scenarios. The system moves or propagates IP address to MAC address bindings from one network to another network within a mobility domain. As soon as a mobile user roams to another network, authentication information is readily available to enable immediate connection to the new network to begin sending and receiving data traffic. The mobile unit can be using either static IP addressing, or can dynamically acquire IP addresses through DHCP.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: February 19, 2013
    Assignee: Avaya Inc.
    Inventors: Shashi H. Ankaiah, Seemant Choudhary, Udaya N. Shankar
  • Patent number: 8379652
    Abstract: A method, apparatus and computer program product for providing policy inheritance between Virtual Local Area Networks (VLANs) is presented. The systems disclosed herein are able to convey, from a designated (i.e., first) VLAN to a roaming (i.e., second) VLAN, mobility VLAN policies enabled at the designated VLAN that are not provided at the roaming VLAN. In operation, example embodiments of the present invention detect a roaming mobile unit in the roaming VLAN. VLAN policies for the mobile unit are then requested from a VLAN server mobility switch in the designated VLAN. VLAN policies are then received and applied in the roaming VLAN.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: February 19, 2013
    Assignee: Avaya Inc.
    Inventors: Shashi H. Ankaiah, Vivek Lakshminarayana Atreya, Kumar Das Karunakaran, Udaya N. Shankar
  • Publication number: 20100293250
    Abstract: Techniques disclosed herein include systems and methods for providing a mechanism to enable smooth, seamless, and reliable connectivity for wireless devices in a unified network, such as networks that apply a given security policy to both wired and wireless devices. The system supports roaming of mobile units across mobility switches. A given mobile unit can retain its IP address in both intra-subnet and inter-subnet roaming scenarios. The given mobile unit also retains its membership to a mobility VLAN to which the mobile unit had been assigned, even during roaming scenarios. The system moves or propagates IP address to MAC address bindings from one network to another network within a mobility domain. As soon as a mobile user roams to another network, authentication information is readily available to enable immediate connection to the new network to begin sending and receiving data traffic. The mobile unit can be using either static IP addressing, or can dynamically acquire IP addresses through DHCP.
    Type: Application
    Filed: May 12, 2010
    Publication date: November 18, 2010
    Applicant: AVAYA INC.
    Inventors: Shashi H. Ankaiah, Seemant Choudhary, Udaya N. Shankar
  • Publication number: 20100290446
    Abstract: Embodiments herein include systems and methods for providing a mechanism to enable smooth, seamless, and reliable connectivity for wireless devices in a unified network. The system supports roaming of mobile units across mobility switches. A given mobile unit can retain its IP address in both intra-subnet and inter-subnet roaming scenarios. The given mobile unit also retains its membership to a mobility VLAN to which it had been assigned, even during roaming scenarios. Embodiments include a framework for wireless switches to advertise VLANs they support to peer wireless switches in the mobility domain, and to advertise their capability to act as VLAN servers for those VLANs. Embodiments support VLAN membership management capabilities that allow access points and peer wireless switches to request wireless switches to add VLANs to the tunnels they share.
    Type: Application
    Filed: May 7, 2010
    Publication date: November 18, 2010
    Applicant: AVAYA INC.
    Inventors: Vivek L. Atreya, Shashi H. Ankaiah, Seemant Choudhary, Kumar Das Karunakaran, Udaya N. Shankar