Network layer support to enhance the transport layer performance in mobile and wireless environments
AssigneeCisco Technology, Inc.
InventorsGopal K. Dommety, Kent K. Leung, Roy Laurens
Life of this patent
Estimating the term…
Abstract
In a router or packet processing node supporting Mobile IP, a method for causing packets to be retransmitted from a sender to a mobile node is disclosed. A plurality of packets having associated update information are received. The packets are intended for the mobile node. The update information associated with at least one of the received packets is stored. When the mobile node is disconnected from the sender and reconnects to the sender, without waiting for a timeout the sender is directed to retransmit a last portion of packets to the mobile node based on the stored update information. Apparatus and computer readable medium embodiments are also disclosed.
Claims35
In a packet processing node supporting Mobile IP, a method for causing packets to be retransmitted from a sender to a mobile node, the method comprising:
- receiving a plurality of packets having associated update information, the packets being intended for the mobile node;
- storing the update information associated with at least one of the received packets;
- and
- when mobile node is disconnected from the sender and reconnects to the sender, without waiting for a timeout directing the sender to retransmit a last portion of packets to the mobile node based on the stored update information.
A router supporting Mobile IP for use with a mobile node to cause packets to be retransmitted from a sender to a mobile node, the router comprising:
- a memory;
- and
- a processor coupled to the memory,
- wherein at least one of the memory and the processor are adapted to provide:
- receiving a plurality of packets having associated update information into the router, the packets being intended for the mobile node;
- storing the update information associated with at least one of the received packets;
- and
- when mobile node is disconnected from the sender and reconnects to the sender, directing the sender to retransmit a last portion of the packets to the mobile node based on the stored update information.
A computer readable medium containing programming instructions for causing packets to be retransmitted from a sender to a mobile node, the computer readable medium comprising:
- computer code for receiving a plurality of packets having associated update information, the packets being intended for the mobile node;
- computer code for storing the update information associated with at least one of the received packets;
- and
- computer code for when mobile node is disconnected from the sender and reconnects to the sender, without waiting for a timeout directing the sender to retransmit a last portion of the packets to the mobile node based on the stored update information.
Dependencies are inferred from the claim text.