Patents Assigned to VTStarcom, Inc.
  • Patent number: 6628671
    Abstract: A network access server providing remote access to an IP network for a remote client initiates a PPP connection for a remote client quickly, and without requiring re-negotiation of Link Control Protocols and Network Control Protocols. The network access server has a PPP session with the remote client go dormant, for example when the user is a wireless user and goes out of range of a radio tower and associated base station. The network access server does not get rid of the PPP state for the dormant session, but rather switches that PPP state to a new session, such as when the client moves into range of a different radio tower and associated base station and initiates a new active session on the interface to the wireless network. The switching of PPP states may be within a single network access server, or from one network access server to another.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: September 30, 2003
    Assignee: VTStarcom, Inc.
    Inventors: Richard J. Dynarski, Matthew Harper, Andrew Bezaitis, Yingchun Xu, Kenneth L. Peirce, Jr.