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US 10,257,802 B2Granted
Binding registration method, data forwarding method, related device, and network system
AssigneesHuawei Technologies Co., Ltd., University of Science and Technology of China
InventorsKaiping Xue, Yizhen Wu, Dan Ni, Fang Yu
Life of this patent
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Abstract
A binding registration method includes: an SDN controller receiving a first bearer message that is forwarded by a first MAG in multiple MAGs and that carries a first L2 attach request message; sending, to each of the first MAG and an LMA, a message for establishing a tunnel between the first MAG and the LMA; sending, to each of the first MAG and the LMA, a message for adjusting a flow entry of an MN; configuring an HNP(s) for the MN, and encapsulating the HNP(s) into an RA message; and sending the RA message to the first MAG.
Claims20
A software defined networking (SDN) controller, wherein the SDN controller comprises:
- a processor, configured for processing a message received from a network element;
- a receiver, configured to receive a first bearer message that is forwarded by a first mobile access gateway (MAG) of multiple MAGs and that carries a first L2 attach request message, so that a mobile node requests to register with a network, wherein the first L2 attach request message is sent by the mobile node to the first MAG to request to access the first MAG, and the first L2 attach request message comprises an ID of the mobile node;
- and
- a transmitter, configured to send, to each of the first MAG and a local mobility anchor (LMA), a message for establishing a tunnel between the first MAG and the LMA, and to send, to each of the first MAG and the LMA, a message for adjusting a flow entry of the mobile node;
- wherein the processor is further configured to, when establishment of the tunnel between the first MAG and the LMA succeeds, configure home network prefix(es) (HNP(s)) for the mobile node, and encapsulate the HNP(s) into a router advertisement message;
- and
- wherein the transmitter is further configured to send the router advertisement message to the first MAG, so that the mobile node is registered with the network when the mobile node receives the router advertisement message from the first MAG.
4 more elements
A network system, comprising:
- a software defined networking (SDN) controller;
- a mobile node;
- a mobile access gateway (MAG);
- and
- a local mobility anchor (LMA);
- wherein the mobile node is configured to send an L2 attach request message to the MAG when the mobile node needs to access the MAG, wherein the L2 attach request message comprises an ID of the mobile node;
- wherein the MAG is configured to:
- add the received L2 attach request message to a bearer message, and forward the bearer message to the SDN controller;
- wherein the SDN controller is configured to:
- send, to each of the MAG and the LMA, a message for establishing a tunnel between the MAG and the LMA, and send, to each of the MAG and the LMA, a message for adjusting a flow entry of the mobile node;
- wherein the MAG is further configured to:
- complete establishment of the tunnel on the MAG side according to the received message for establishing a tunnel between the MAG and the LMA, and adjust, according to the received message for adjusting a flow entry of the mobile node, a flow entry that is of the mobile node and stored in the MAG;
- wherein the LMA is configured to:
- complete establishment of the tunnel on the LMA side according to the message for establishing a tunnel between the MAG and the LMA, and adjust, according to the message for adjusting a flow entry of the mobile node, a flow entry that is of the mobile node and stored in the LMA;
- wherein the SDN controller is further configured to:
- after establishment of the tunnel between the MAG and the LMA succeeds, configure home network prefix(es) (HNP(s)) for the mobile node, encapsulate the HNP(s) into a router advertisement message, and send the router advertisement message to the MAG;
- and
- wherein the mobile node is further configured to receive the router advertisement message forwarded by the MAG, to register with a network.
15 more elements
A binding registration method, wherein the method comprises:
- receiving, by a software defined networking (SDN) controller, a first bearer message that is forwarded by a first mobile access gateway (MAG) of multiple MAGs and that carries a first L2 attach request message, to request a mobile node to register with a network, wherein the first L2 attach request message is sent by the mobile node to the first MAG to request to access the first MAG, and the first L2 attach request message comprises an ID of the mobile node;
- sending, by the SDN controller, to each of the first MAG and a local mobility anchor (LMA), a message for establishing a tunnel between the first MAG and the LMA;
- sending, by the SDN controller to each of the first MAG and the LMA, a message for adjusting a flow entry of the mobile node;
- and
- in response to successful establishment of the tunnel between the first MAG and the LMA, configuring, by the SDN controller, home network prefix(es) (HNP(s)) for the mobile node, encapsulating the HNP(s) into a router advertisement message, and sending the router advertisement message to the first MAG, so that the mobile node is registered with the network when the mobile node receives the router advertisement message from the first MAG.
2 more elements
Dependencies are inferred from the claim text.