SERVICE NODE AND INTER-SERVICE NODE USER PROTOCOL MESSAGE SYNCHRONIZATION METHOD

• US 20140195693A1
• Filed: 06/13/2012
• Published: 07/10/2014
• Est. Priority Date: 08/23/2011
• Status: Active Grant

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: Mao, Wei, Fan, Liang, Chen, Weili
• Granted Patent: US 9,426,217 B2
• Time in Patent Office: Days
• US Class Current: 709/232
• CPC Class Codes: H04L 12/287 Remote access server, e.g. BRAS
• CPC Class Codes: H04L 12/4633 Interconnection of networks using encapsulation techniques, e.g. tunneling
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 67/1095 Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
• CPC Class Codes: H04L 67/63 Routing a service request depending on the request content or context

Abstract

A method is disclosed for synchronizing user protocol messages between service nodes. The method includes, when receiving a user-related protocol message, a service node judging whether a state of a backup group to which a user belongs corresponding to the protocol message is active or standby on the service node, and according to a type of the protocol message, determining whether to send the protocol message to another service node on which the state of the backup group is standby or active. The method also includes, when determining to send the protocol message, the service node encapsulating the protocol message through a service backup protocol and sending the protocol message to the other service node. A service node includes a message receiving module, a state judging module and a message sending module.

Claims

1. A method for synchronizing user protocol messages between service nodes, comprising:

when receiving a user-related protocol message, a service node judging whether a state of a backup group to which a user belongs corresponding to the protocol message is active or standby on the service node, and according to a type of the protocol message, determining whether to send the protocol message to another service node on which the state of the backup group is standby or active; and

when determining to send the protocol message, the service node encapsulating the protocol message through a service backup protocol and sending the protocol message to the other service node.

2. The method for synchronizing user protocol messages between service nodes according to claim 1, further comprising:

when the type of the protocol message received by the service node is a protocol message from an Authentication Authorization and Accounting (AAA) server, a Dynamic Host Configuration Protocol (DHCP) server or a portal authentication protocol (Portal) server, if a state of a backup group to which a user belongs corresponding to the protocol message is standby on the service node, the service node sending the protocol message to the other service node on which the state of the backup group is active.

3. The method for synchronizing user protocol messages between service nodes according to claim 1, further comprising:

when the type of the protocol message received by the service node is a Layer 2 Tunneling Protocol (L2TP) tunnel control message, if a state of a backup group to which a user belongs corresponding to the L2TP tunnel control message is active on the service node, the service node sending the L2TP tunnel control message to the other service node on which the state of the backup group is standby.

4. The method for synchronizing user protocol messages between service nodes according to claim 1, wherein, the service backup protocol comprises:

a Broadband Network Access Server (BNAS) device service backup protocol and an inter-chassis communication protocol.

9. The method for synchronizing user protocol messages between service nodes according to claim 2, wherein, the service backup protocol comprises:

a Broadband Network Access Server (BNAS) device service backup protocol and an inter-chassis communication protocol.

10. The method for synchronizing user protocol messages between service nodes according to claim 3, wherein, the service backup protocol comprises:

a Broadband Network Access Server (BNAS) device service backup protocol and an inter-chassis communication protocol.

5. A service node, comprising:

a message receiving module, configured to;

receive a user-related protocol message;

a state judging module, configured to;

judge a state of a backup group to which a user belongs corresponding to the protocol message on the service node, wherein the state is active or standby; and

according to a type of the protocol message, determine whether to send the protocol message to another service node on which the state of the backup group is standby or active; and

a message sending module, configured to;

when determining to send the protocol message, encapsulate the protocol message through a service backup protocol and send the protocol message to the other service node.

6. The service node according to claim 5, wherein, the state judging module is further configured to:

when the type of the protocol message received by the message receiving module is a protocol message from an Authentication Authorization and Accounting (AAA) server, a Dynamic Host Configuration Protocol (DHCP) server or a portal authentication protocol (Portal) server, if a state of a backup group to which a user belongs corresponding to the protocol message is standby on the service node, determine to send the protocol message to the other service node on which the state of the backup group is active.

7. The service node according to claim 5, wherein, the state judging module is further configured to:

when the type of the protocol message received by the message receiving module is a Layer 2 Tunneling Protocol (L2TP) tunnel control message, if a state of a backup group to which a user belongs corresponding to the L2TP tunnel control message is active on the service node, determine to send the L2TP tunnel control message to the other service node on which the state of the backup group is standby.

8. The service node according to claim 5, wherein, the service backup protocol comprises:

a Broadband Network Access Server (BNAS) device service backup protocol and an inter-chassis communication protocol.

11. The service node according to claim 6, wherein, the service backup protocol comprises:

a Broadband Network Access Server (BNAS) device service backup protocol and an inter-chassis communication protocol.

12. The service node according to claim 7, wherein, the service backup protocol comprises:

a Broadband Network Access Server (BNAS) device service backup protocol and an inter-chassis communication protocol.