Telecommunications routing
First Claim
1. A method of controlling routing of packets in a connectionless routing protocol network including an infrastructure of packet switching nodes interconnected by packet transport links, and a plurality of access nodes to which a routing path, defined by data held in packet switching nodes located along said routing path, may be directed in said infrastructure for a given network address, said method comprising:
- routing packets along a first routing path for a first network address, which routing path is directed to a first access node serving a mobile node using said first network address via a communications link;
designating an interface, other than the communications link to the mobile node from the first access node, on which to forward packets arriving along said first routing path to a second access node;
subsequent to the designation of said interface, handing over the communications link of the mobile node, such that the second access node serves said mobile node;
responsive to the handing over of the communications link, altering routing in said infrastructure for said first network address to create a second routing path for said first network address, directed to said second access node;
responsive to the creation of said second routing path, altering routing in said infrastructure for said first network address to remove said first routing path; and
routing packets to said second access node via said second routing path.
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Accused Products
Abstract
Routing of packets is controlled in a connectionless routing protocol network including an infrastructure of packet switching nodes interconnected by packet transport links, and a plurality of access nodes to which a routing path, defined by data held in packet switching nodes located along said routing path, may be directed in the infrastructure for a given network address.
174 Citations
22 Claims
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1. A method of controlling routing of packets in a connectionless routing protocol network including an infrastructure of packet switching nodes interconnected by packet transport links, and a plurality of access nodes to which a routing path, defined by data held in packet switching nodes located along said routing path, may be directed in said infrastructure for a given network address, said method comprising:
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routing packets along a first routing path for a first network address, which routing path is directed to a first access node serving a mobile node using said first network address via a communications link; designating an interface, other than the communications link to the mobile node from the first access node, on which to forward packets arriving along said first routing path to a second access node; subsequent to the designation of said interface, handing over the communications link of the mobile node, such that the second access node serves said mobile node; responsive to the handing over of the communications link, altering routing in said infrastructure for said first network address to create a second routing path for said first network address, directed to said second access node;
responsive to the creation of said second routing path, altering routing in said infrastructure for said first network address to remove said first routing path; androuting packets to said second access node via said second routing path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification