China Mobile Communications Corporation

Min Hui

Hui Deng

Zhen Cao

A data transferring method, a system and a related network device based on proxy mobile (PM) IPv6, which are used for solving the problem that the existing data transferring scheme based on proxy mobile (PM) IPv6 can't distinguishes and controls the mobile node (MN) data packages according to service flow. The data transferring method includes: after the mobile node (MN) initiates the service flow, a mobile access gateway (MAG) and local mobility anchor (LMA) establishes a bidirectional tunnel by information interaction based on service flow binding; in which, in the process of the bidirectional tunnel establishing, the service is distributed the downlink GRE Key and uplink GRE Key, and the local mobility anchor (LMA) adds service flow identifier of the service flow and the binding relationship of the address information of the mobile node (MN); the mobile access gateway (MAG) and local mobility anchor (LMA) transfers the data packages of the service flow initiated by the mobile node (MN) on the bidirectional tunnel between the mobile access gateway (MAG) and local mobility anchor (LMA) according to the service flow identifier and the binding relationship and the uplink, downlink GRE Key.

Data transmission method, system and related network device based on proxy mobile (PM) IPV6

The invention discloses a method of transferring multicast data, a method for updating a multicast tree, a system and a device thereof, the main technical solution comprise: a first Mobile Access Gateway (MAG) receives pre-handover message transmitted from a Multicast Source before it handovers from the current accessed first MAG to the second MAG; the first MAG according to the second MAG ID carried in the pre-handover message, establishes a bidirectional tunnel with the second MAG; and the first MAG multicasts multicast data from a Multicast Source, based on the established bidirectional tunnel and the definitive post-handover multicast mode which is the multicast mode adopted by the Multicast Source after handovers to the second MAG. Adopting the technical solution, by previously establishing bidirectional tunnel, the first MAG transfers multicast data by the established directional tunnel when performing binding, updating and authenticating between the Multicast Source and the second MAG, which reduces the interruption delay of multicast service due to the switching among MAGs by Multicast Source.

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Beijing, China

Min Hui