Routing in a data communication network
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United States of America Patent
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Apr 27, 2010
Grant Date -
Mar 9, 2006
app pub date -
Oct 8, 2003
filing date -
Oct 9, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A method of supporting mobility in an Internet Protocol (IP)-based data network. The method comprises the steps of generating a first stateful IP autoconfiguration message at a mobile node, whereby the message includes an address capable of use for routing maintenance. The mobile node transmits the generated message to a first access node, which incorporates its address and forwards the message to a dynamic host configuration protocol (DHCP) Server. The DHCP Server and access node analyze the message to determine a route to deliver data to and/or from the mobile node. One or more route update message are triggered from said access node and said DHCP server to a number of network elements between said access node and said DHCP server in the IP based data network to support mobility in an IP domain with minimum bandwidth use and minimum tunneling required.
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