System and method for mobile IP

摘要

Network system for communicating between a mobile node and a correspondent node via a first IP edge-IP network-second IP edge connectivity, comprising a user IP addressing space and a network IP addressing space, wherein a locator identifier space is inserted between the user IP and network IP addressing space, wherein the first and second IP edges are associated with first and second locator identifiers, and wherein the system is further arranged for associating a mobile node with one or more IP network addresses and an IP user address decoupled from the one or more IP network addresses via the first locator identifier.

主权项

1. A network system that facilitates communicating between a mobile node and a correspondent node via a first IP edge-IP network-second IP edge connectivity, comprising:
a processor and a memory comprising instructions that, when executed by the processor cause the processor to: send a locator identifier from the first IP edge to the mobile node; send the user address of the mobile node to the first IP edge; send a request for locating the user address of the mobile node from the correspondent node to the second IP edge; send an address resolution request by the second IP edge to the first IP edge; send the network address and locator identifier associated with the user address of the mobile node by the first IP edge to the second IP edge; and forward said network address and locator identifier associated with the mobile node by the second IP edge to the correspondent node; wherein the mobile node is associated with one or more IP network addresses and an IP user address arranged as layers in a stack on the mobile node, wherein the IP user address layer is decoupled from the one or more IP network address layers via a locator identifier layer that comprises the locator identifier; and wherein the mobile terminal couples directly to the internet via the first IP edge node while the correspondent node couples directly to the internet via the second IP edge node; wherein the system is arranged for associating the mobile node with a first and a second stack; and wherein the system is arranged for keeping respectively a first and second IP network address of the first and second stack simultaneously active during a transition from a first network space domain with the first IP network address to a second network space domain with the second IP network address.