Patents by Inventor Sepehr Safari

Sepehr Safari 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: 8549346
    Abstract: Example systems and methods associated with router synchronization are described. One example method includes reducing a likelihood that a first network device will be favored over a peer device as a router. This likelihood may be increased after the first network device has received a threshold amount of routing information from the peer device. This may allow the first network device to begin performing non-routing related tasks after it starts up without causing interruption of data streams for which the first network device does not have current routing information.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: October 1, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Sepehr Safari, Ahmad Reza Yazdi, Kaushik Pratap Biswas
  • Publication number: 20120210161
    Abstract: Example systems and methods associated with router synchronization are described. One example method includes reducing a likelihood that a first network device will be favored over a peer device as a router. This likelihood may be increased after the first network device has received a threshold amount of routing information from the peer device. This may allow the first network device to begin performing non-routing related tasks after it starts up without causing interruption of data streams for which the first network device does not have current routing information.
    Type: Application
    Filed: January 17, 2012
    Publication date: August 16, 2012
    Inventors: Sepehr Safari, Ahmad Reza Yazdi, Kaushik Pratap Biswas
  • Patent number: 8112660
    Abstract: Example systems and methods associated with router synchronization are described. One example method includes reducing a likelihood that a first network device will be favored over a peer device as a router. This likelihood may be increased after the first network device has received a threshold amount of routing information from the peer device. This may allow the first network device to begin performing non-routing related tasks after it starts up without causing interruption of data streams for which the first network device does not have current routing information.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: February 7, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Sepehr Safari, Ahmad Reza Yazdi, Kaushik Pratap Biswas
  • Publication number: 20100218033
    Abstract: Example systems and methods associated with router synchronization are described. One example method includes reducing a likelihood that a first network device will be favored over a peer device as a router. This likelihood may be increased after the first network device has received a threshold amount of routing information from the peer device. This may allow the first network device to begin performing non-routing related tasks after it starts up without causing interruption of data streams for which the first network device does not have current routing information.
    Type: Application
    Filed: February 26, 2009
    Publication date: August 26, 2010
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Sepehr Safari, Ahmad Reza Yazdi, Kaushik Pratap Biswas
  • Patent number: 7609618
    Abstract: The invention relates to a method for switchover from an active node to a standby node wherein when a standby network node restarts, designation of the standby node as a new active node is delayed according to 1) the period of a delay timer and 2) a counter indicating the number of data messages the standby node will be receiving from the active network node. The active node sends a notification to the standby node identifying a number of data messages that the active network node needs to send to the standby node. The standby node stores the number in a counter and decrements the counter upon receiving data messages. When the delay timer expires, the standby network node transitions to become the new active node only when the counter has reached zero. If the counter is not yet zero, then the switchover delay timer is restarted and the cycle repeats.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: October 27, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Kaushik Biswas, Ian Wilson, Siva Jayasenan, Sepehr Safari