BANDWIDTH PROVIDING METHOD BASED ON MULTI-FLOW GROUPING

• US 20160205041A1
• Filed: 08/28/2014
• Published: 07/14/2016
• Est. Priority Date: 08/28/2013
• Status: Active Grant

• Current Assignee: KT Corporation
• Original Assignee: KT Corporation
• Inventors: LEE, Se Hui, AHN, Tae Jin, HAN, Kyung Ah
• Granted Patent: US 10,432,554 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 12/4641 Virtual LANs, VLANs, e.g. virtual private networks [VPN] LAN interconnection over a bridge based backbone H04L12/462; encapsulation techniques H04L12/4633; routing of packets H04L45/00; packet switches H04L49/00; virtual private networks for security H04L63/0272
• CPC Class Codes: H04L 41/0893 Assignment of logical groups to network elements
• CPC Class Codes: H04L 41/0894 Policy-based network configuration management
• CPC Class Codes: H04L 41/0895 Configuration of virtualised networks or elements, e.g. virtualised network function or OpenFlow elements
• CPC Class Codes: H04L 41/0896 Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities flow or congestion control using dynamic resource allocation, e.g. in-call renegotiation, H04L47/76
• CPC Class Codes: H04L 43/026 using flow identification
• CPC Class Codes: H04L 45/02 Topology update or discovery
• CPC Class Codes: H04L 45/245 Link aggregation, e.g. trunking
• CPC Class Codes: H04L 45/38 Flow based routing
• CPC Class Codes: H04L 47/2441 relying on flow classification, e.g. using integrated services [IntServ]
• CPC Class Codes: H04L 47/41 by acting on aggregated flows or links
• CPC Class Codes: H04L 47/828 Allocation of resources per group of connections, e.g. per group of users
• CPC Class Codes: Y02D 30/50 in wire-line communication networks, e.g. low power modes or reduced link rate

Abstract

Disclosed is a bandwidth providing method based on multi-flow grouping, which can control multi-terminal and multi-sendee for a user with a single bandwidth. The bandwidth providing method based on multi-flow grouping comprises a step of receiving a first packet flow and a second packet flow, a step of verifying a flow group comprising the first package flow and the second package flow using a flow group table, and a step of assigning a single bandwidth to the first packet flow and the second packet flow when the first packet flow and the second packet flow are verified as being comprised in the same group, thereby managing the bandwidth. Accordingly, the multi-terminal and multi-service of a user can be efficiently controlled with a single bandwidth.

Claims

1. A method of managing a bandwidth, performed by a network apparatus under control of a network control apparatus in a software defined networking (SDN) environment, the method comprising:

receiving a first packet flow and a second packet flow;

identifying a flow group to which the first package flow and the second package flow belong by using a flow group table; and

assigning a unified bandwidth to the first packet flow and the second packet flow when the first packet flow and the second packet flow are identified as belonging to a same flow group, thereby managing the unified bandwidth.

2. The method according to claim 1, wherein the first packet flow and the second packet flow are transmitted by different terminals of a same user.

3. The method according to claim 1, wherein the first packet flow and the second packet flow are transmitted by different services of a same terminal.

4. The method according to claim 1, wherein the flow group table comprises at least one of a terminal Medium Access Control (MAC) address, a Virtual Local Area Network (VLAN) identifier (ID), a terminal internet protocol (IP) address, queue identification information, minimum bandwidth information, and maximum bandwidth information.

5. The method according to claim 1, wherein the flow group table is updated according to a flow group table modification request from the network control apparatus.

6. The method according to claim 5, wherein the flow group table modification request is performed based on a user table managed and obtained from a user management system.

7. A method of managing a bandwidth, performed in a network control apparatus by controlling at least one network apparatus in a software defined network (SDN) environment, the method comprising:

receiving a first packet flow and a second packet flow through the at least one network apparatus;

identifying a flow group to which the first package flow and the second package flow belong based on a user table; and

requesting the network apparatus to modify a flow group table based on information on the identified flow group.

8. The method according to claim 7, wherein the first packet flow and the second packet flow are transmitted by different terminals of a same user.

9. The method according to claim 7, wherein the first packet flow and the second packet flow are transmitted by different services of a same terminal.

10. The method according to claim 7, wherein the flow group table comprises at least one of a terminal Medium Access Control (MAC) address, a Virtual Local Area Network (VLAN) identifier (ID), a terminal internet protocol (IP) address, queue identification information, minimum bandwidth information, and maximum bandwidth information.

11. The method according to claim 7, wherein the first packet flow and the second packet flow are received by the network control apparatus through different network apparatuses, and the network control apparatus requests each of the different network apparatuses to modify respective flow group tables based on information on the identified flow group.

12. A method of managing a bandwidth, performed by a network control apparatus and a network apparatus in a software defined network (SDN) environment, the method comprising:

receiving, at the network apparatus, at least one packet flow;

identifying, at the network apparatus, respective flow groups for respective packet flows included in the at least one packet flow by using a flow group table; and

assigning, at the network control apparatus, a unified bandwidth to packet flows identified as belonging to a same flow group among the at least one packet flow, and managing the unified bandwidth.

13. The method according to claim 12, further comprising:

receiving, at the network control apparatus, a packet flow whose flow group is not identified by the network apparatus from the network apparatus; and

identifying, at the network control apparatus, a flow group to which the packet flow whose flow group is not identified by the network apparatus based on a user table.

14. The method according to claim 13, further comprising:

requesting, by the network control apparatus, the network apparatus to modify the flow group table based on information on the identified flow group for the packet flow whose flow group is not identified by the network apparatus.

15. The method according to claim 14, further comprising:

updating, by the network apparatus, the flow group table according to the request to modify the flow group table which is received from the network control apparatus.

16. The method according to claim 12, wherein the packet flows identified as belonging to a same flow group among the at least one packet flow are transmitted by different terminals of a same user.

17. The method according to claim 12, wherein the packet flows identified as belonging to a same flow group among the at least one packet flow are transmitted by-different services of a same terminal.

18. The method according to claim 12, wherein the flow group table comprises at least one of a terminal Medium Access Control (MAC) address, a Virtual Local Area Network (VLAN) identifier (ID), a terminal internet protocol (IP) address, queue identification information, minimum bandwidth information, and maximum bandwidth information.