KR101127964B1 - User adaptive type connection control apparatus and network system including the same - Google Patents

Abstract

The present invention relates to a user-adaptive connection control device and a network system including the same, and can be reused regardless of an application location in a communication network, and can be used as a semi-switched connection control, switched connection control, and provisioned connection control. Provided are a user adaptive connection control device capable of simultaneously supporting various connection control operations and a network system including the same.

Control plane, semi-switched link control, switchable link control, and provisioned link control

Description

USER ADAPTIVE TYPE CONNECTION CONTROL APPARATUS AND NETWORK SYSTEM INCLUDING THE SAME}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection control device in an internet based network, and more particularly, to a user adaptive connection control device and a network system including the same for integrating various connection control methods and enabling reuse regardless of an application location. will be.

Connection control methods of communication networks can be classified into provisional, semi-switched, and switched connection control methods. Provisional connection control controls the connection using a management system such as EMS / NMS (Element Management System / Network Management System), while switchable connection control is used for all User (Network) to Network Interface (UN) and Network to Network Interface (NNI). The connection is controlled using a control plane over the interval. In the semi-switched connection control, provisional connection control is applied in the UNI section, and switchable connection control is applied in the NNI section.

The network system applied to such a communication network should be able to perform switched and / or semi-switched connection control. In the case of switched connection control, it is possible only if the client node connecting to the communication network can provide the UNI interface function. Should be supported.

In addition, provisional connection control, that is, connection control using a management plane, should be basically provided for the initial application of the network or in case of emergency.

Accordingly, the network system is designed and implemented to support various connection control methods so that the servers and nodes constituting the network system applied to the communication network can support various connection control methods in various ways.

However, servers and nodes according to the related art are designed to provide different configurations and different functions according to their application locations, so that reuse of the application location becomes impossible.

Therefore, the present invention can be reused irrespective of the application position in the communication network, and user adaptation to support various connection control methods such as semi-switched connection control, switched connection control, and provisioned connection control at the same time. To provide a type connection control device and a network system including the same.

According to an aspect of the present invention as a means for solving the above problems, a query analysis component for receiving a query transmitted from the outside; A service analysis component that analyzes the query and determines a connection control method for processing the query among semi-switched, switched and provisioned connection control methods, wherein the provisioned connection control method uses a management system Control the connection, the switched connection control method controls the connection using a control plane, and the semi-switched connection control method is a mixed method of a provisional connection control method and a switchable connection control method; A resource control component for performing resource allocation, resource deletion, synchronization information for switchable connection control, and rollback operation according to the connection control operation by the query; nodes required to provide resources according to the connection control operation Or a path determining component for notifying the resource control component after determining a network path; A topology discovery component that determines a network shape of the coverage domain, determines a route within the coverage domain, and then informs the resource control component; And a connection instance control component for setting and releasing an instance for performing the connection control operation under the control of the resource control component, and for controlling setting and releasing of resources for the instance. Provided is a user adaptive connection control apparatus characterized by supporting all provisioned connection control schemes.

The apparatus may further include a connection configuration information management component that defines and determines an inter-node and inter-network connection control type in the application domain, and generates and deletes connection configuration information.

The apparatus includes a resource discovery component for determining a resource shape of the application domain; The apparatus may further include a resource permission component for determining whether to allow a resource request for the connection control operation according to the resource shape of the application domain.

The apparatus may further comprise a user authentication component that performs user authentication for the user who requested the query.

The user authentication component is characterized by performing user authentication only when the same user authentication is not performed by another network device.

The apparatus may further include a signaling component that controls the establishment and release of resources for the instance of the connection instance control component using signaling protocol functionality.

The apparatus may further include a routing component that determines a route within the coverage domain using a routing protocol function.

The apparatus may further include a connection test component for performing a one-way or two-way connection test when the end-to-end connection setting according to the connection control operation is successfully performed.

The query analysis component is to forward the query to the higher level network system if the query is to be processed at a higher level network device.

According to another aspect of the present invention as a means for solving the above problems, it is composed of servers and nodes each comprising a user-adaptive connection control device according to an aspect of the present invention, provisioned, semi-switched Provided is a network system that performs connection control according to one of connection type and switched type.

As such, the user-adaptive connection control device of the present invention can be reused regardless of the application location in the communication network, and can simultaneously support all types of connection control operations such as provisioned, semi-switched, and switched. This improves the utilization of the connection control structure.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing in detail the operating principle of the preferred embodiment of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and like parts are denoted by similar reference numerals throughout the specification.

Also, when a part is referred to as "including " an element, it does not exclude other elements unless specifically stated otherwise.

1 is a diagram illustrating a network system in which user adaptive connection control is performed according to an embodiment of the present invention.

Referring to FIG. 1, a cluster network controller (CNC) that accesses each cluster network (CN-xy) and performs centralized control and management of nodes existing in the CN-xy is described below. CC-xy) (1-11,1-12,1-21) and each backbone network (BN-x) to access centralized control and management of nodes in the BN-x Backbone network controller (BC-x) (2-1,2-2) performing the CC-xy (1-11,1-12) by connecting to the upper network of CN-xy and BN-x 1-21) and a master controller (MC) for performing centralized control and management for the BN-x (2-1, 2-2) (3), at least one user terminal (4, 5) is configured to include.

The user terminals 4 and 5 may be applied to end terminals to perform end-to-end connection control operations through various connection control methods, and to tester terminals for performing network performance tests through non-end-to-end connection control operations. .

CN-xy is a network that can be directly connected to the user terminal (4,5), can be configured in a variety of topologies, such as ring (ring), mesh (mesh), BN-x is a network for interconnecting a plurality of CN The furnace may also be composed of various topologies such as rings and meshes. In this case, the path connecting the CN-xy and the BN-x may be set and changed in advance by the network operator.

Each of the servers and nodes provided in the network system configured as described above includes the user-adaptive connection control apparatus described with reference to FIG. 2 to support all types of connection control operations.

In addition to end-to-end connection control, it also supports non-end-to-end connection control, which allows you to selectively configure the desired nodes for network performance testing.

2 is a diagram illustrating a configuration of a user adaptive connection control apparatus according to an embodiment of the present invention.

As shown in FIG. 2, the user adaptive connection control apparatus includes a query analysis component 21, a user authentication component 22, a storage 23, a connection configuration information management component 24, a service analysis component 25, Resource control component 26, resource admission component 27, path determination component 28, connection instance control component 29, topology discovery component 30, resource discovery component 31, signaling component 32, A routing component 33, and a connection test component 34.

For reference, each component of FIG. 2 is a component for a logical access to the control plane, and the component in this case refers to a functional element replaceable in one system in implementing an interface function.

In addition, the components of FIG. 2 may be all included in a specific network node or server, but may be distributed in at least one network node and / or server. If distributed to network nodes and / or servers, and operations are executed in conjunction with each other, information indicating that they are the same transaction is transmitted and received between the corresponding network nodes and / or servers.

Hereinafter, the function of each component will be described.

The query analysis component 21 serves as a relay between an external device (eg, the user terminal a (4)) and other components in the connection control process. That is, it analyzes the query sent from the external device and delivers it to the component that needs it. On the other hand, if resource control for a query transmitted from an external device is to be processed at a higher level, the query request is delivered to a user adaptive connection control device provided in a network system located at a higher level.

The user authentication component 22 performs authentication for the user who requested the connection control operation. If the same user authentication procedure has already been performed by a user adaptive connection control apparatus provided in a network system located at a higher level, the user authentication procedure at the current level may be omitted.

The storage 23 stores all the information necessary to perform the connection control operation and the network performance test operation, such as application domain information, user authentication information, connection configuration information, and resource shape information.

The connection configuration information management component 24 defines and determines the type of inter-node and inter-network connection control in the network (hereinafter, applied domain) that it manages, and generates or deletes connection configuration information therefor.

The service analysis component 25 analyzes the currently requested query to determine a service type and a connection control type. That is, the query is analyzed to determine which connection control method among semi-switched, switched, and provisioned types, whether to perform end-to-end connection control operation or non-end-to-end connection control operation. .

The resource control component 26 performs resource allocation, resource deletion, providing synchronization information for switchable connection control, and rollback operation according to a connection control operation. It also performs resource control in the domain.

The resource permission component 27 continuously monitors according to the resource shape in the application domain, and determines whether to allow the connection resource request according to the monitoring result.

The route determining component 28 determines the nodes or network routes required to provide resources in accordance with the connection control operation of the resource control component 26.

The connection instance control component 29 sets up and releases an instance for performing a connection control operation. At this time, the operation of the connection instance control component 29 may be subdivided into network level and node level. For example, when the connection instance control component 29 included in the server is operated at the network level, the connection instance control component 29 of each node may request connection control or transmit synchronization information.

Topology discovery component 30 determines the network shape of the application domain. Determination of the network shape can be made using the routing results of the routing component 33 to determine other protocols, and the scope of the application domain is variously acceptable depending on the implementation manner.

The resource discovery component 31 determines the shape of the resource (bandwidth, CPU, memory, etc.) of the application domain.

The signaling component 32 controls the establishment and release of resources for the instance of the connection instance control component 29 using signaling protocol functionality. If the user-adaptive connection control device does not use a signaling protocol, the connection instance control component 29 may control the setting and release of resources on behalf of the signaling component 32.

The routing component 33 uses routing protocol functionality to determine the route within the coverage domain. If the user-adaptive connection control device does not use a routing protocol, the connection topology discovery component 30 determines the route in the coverage domain on behalf of the routing component 33.

The connection test component 34 performs a unidirectional or bidirectional connection test only when the end-to-end connection setting is normally performed. However, the connection test may not be performed depending on network conditions or node conditions.

Hereinafter, embodiments of a connection control method using the user adaptive connection control device of FIG. 2 will be described with reference to FIGS. 3 to 5.

3 is a view for explaining a user adaptive connection control method according to an embodiment of the present invention, which relates to a non-end-to-end connection control operation to selectively configure a specific node to support network performance testing, Follow a provisioned connection control scheme.

First, the user terminal a (4) presents the specification of the resource to the MC (3) to drive the application (or service) desired by the user, and requests a connection control with the node (H) (S101).

The MC 3 then receives a connection control request from the user terminal a 4 via the query analysis component 21 and performs user authentication to the user terminal a 4 via the user authentication component 22. If the user authentication is successfully completed, the service analysis component 25 analyzes the connection control request to confirm that the currently requested service type is a semi-switched connection control scheme. The resource control component 26 then associates the operation with the path determination component 28 and the topology discovery component 30 to allocate resources for processing the corresponding connection control request. , BC-1 (2-1), BC-2 (2-2), and CC-21 (1-21) and the originating and terminating node in each subnet, and then the lower level CC-11 (1- 11), connection control requests are made to BC-1 (2-1), BC-2 (2-2), and CC-21 (1-21) (S102-1 to S102-4).

Then, each of CC-11 (1-11), BC-1 (2-1), BC-2 (2-2), and CC-21 (1-21) are query analysis components similar to MC (3). (21), service analysis component (25), resource control component (26), path determination component (28), and topology discovery component (30) using resources (bandwidth, nodes, etc.) for processing the connection control request. Decide The connection instance control component 29 directly controls the originating node located in its own subnet to request to handle connection control with the destination node (S103-1 to S103-4).

And each of CC-11 (1-11), BC-1 (2-1), BC-2 (2-2), and CC-21 (1-21) is an originating node through connection instance control component 29. After receiving the operation result from the resource control component 26, the rollback status is confirmed through the resource control component 26 (S104-1 to S104-4), and the operation result of the subnet level is notified to the MC 3 (S105-1 to S105-). 4).

The MC 3 then notifies the user terminal a 4 of the final result through the connection instance control component 29 (S106).

4 is a view for explaining a connection control method according to another embodiment of the present invention, which relates to a semi-switchable end-to-end connection control operation.

First, the user terminal a (4) presents the specification of the resource to the MC (3) to drive the application (or service) desired by the user, and requests a connection control with the user terminal b (5) (S201).

The MC 3 then receives a connection control request from the user terminal a 4 via the query analysis component 21 and performs user authentication to the user terminal a 4 via the user authentication component 22. If the user authentication is successfully completed, the service analysis component 25 analyzes the connection control request to confirm that the currently requested service type is a semi-switched connection control scheme. And the resource control component 26 associates the operation with the path determination component 28 and the topology discovery component 30 to allocate resources for processing the connection control request in the required range of CC-11 (1-11), After determining BC-1 (2-1), BC-2 (2-2), and CC-21 (1-21) and the originating and terminating node in each subnet, the lower level CC-11 (1-11) ), Request connection control to BC-1 (2-1), BC-2 (2-2), and CC-21 (1-21) (S202-1 to S202-4).

Then, each of CC-11 (1-11), BC-1 (2-1), BC-2 (2-2), and CC-21 (1-21) are query analysis components similar to MC (3). (21), service analysis component (25), resource control component (26), path determination component (28), and topology discovery component (30) using resources (bandwidth, nodes, etc.) for processing the connection control request. Decide The connection instance control component 29 requests the originating node (Node A, Node C, Node E, Node G) to handle connection control with the destination node (Node B, Node D, Node F, Node H) (S203-). 1 ~ S203-4).

The originating nodes (Node A, Node C, Node E, Node G) in each subnet then use the signaling protocol via their signaling component 32 to receive nodes (Node B, Node D, Node F, Node H). After performing connection control with the controller (S204-1 to S203-4), the execution result is CC-11 (1-11), BC-1 (2-1), BC-2 (2-2), and CC- Notify each of 21 (1-21) (S205-1 to S205-4).

CC-11 (1-11), BC-1 (2-1), BC-2 (2-2), and CC-21 (1-21) each result in connection control via connection instance control component 29 Received, and forwards the result to the MC (S206-1 ~ S206-4).

The MC 3 then uses its connection instance control component 29 to provide CC-11 (1-11), BC-1 (2-1), BC-2 (2-2), and CC-21 (1). -21) receives and analyzes the connection control result transmitted from each, and notifies the user terminal a (4) of the final result (S207).

5 is a view for explaining a user adaptive connection control method according to another embodiment of the present invention, which relates to a switchable end-to-end connection control operation.

First, the user terminal a (4) presents a specification of resources to the node A of its cluster network (CN-11) in order to drive the application (or service) desired by the user, and control the connection with the user terminal b (5) Request (S301).

The query analysis component 21 of the node A (A) analyzes the connection control request, and then the query analysis component 21 and the MC 3 of the CC-11 (1-11) located at a higher level. (S302-1, S302-2).

The query analysis component 21 of the MC 3 receives the connection control request and performs user authentication for the user terminal a 4 via the user authentication component 22. If user authentication is successfully completed, the service analysis component 25 of the MC 3 analyzes the connection control request to confirm that the currently requested service type is a switched connection control scheme. Resource control component 26 then associates operations with route determination component 28 and routing component 33 to allocate resources for processing the query. 1 (2-1), BC-2 (2-2), and CC-21 (1-21) and originating and terminating nodes in each subnet are determined. The connection instance control component 29 requests only the CC-11 (1-11) to handle connection control between the originating node and the destination node according to the switched end-to-end connection control characteristic (S303), and BC-1 (2- 1), BC-2 (2-2), and CC-21 (1-21) are BC-1 (2-1), BC-2 (2-2), and CC-21 (1-21). Requesting a synchronization command with CC-11 (1-11) by providing route information in each subnet (S304-1 to S304-3).

The connection instance control component 29 of the CC-11 (1-11) requests the node A to handle connection control with the node B using the signaling protocol through the signaling component 32 of the node A (S305). . The node B also operates in the same manner as the node A and requests to process connection control with the node C located in the BC-1 (2-1) (S306).

And when the originating node of each of BC-1 (2-1), BC-2 (2-2), and CC-21 (1-21) receives a connection control request from the subnet of the front end, the connection instance control component 29 Requests to check whether or not the BC-1 (2-1), BC-2 (2-2), and CC-21 (1-21) to synchronize with the CC-11 (1-11) through (S307-1). ~ S307-3).

Each of BC-1 (2-1), BC-2 (2-2), and CC-21 (1-21) through its connection instance control component 29 has its originating node (Node C, Node E, Node). Check whether the synchronization information transmitted from G) and the synchronization information provided from the MC (3) match, and notifies the originating node of the confirmation result (S308-1 to S308-3).

If the synchronization information transmitted from the originating node (node C, node E, node G) and the synchronization information provided from the MC 3 match, BC-1 (2-1), BC-2 (2-2), And each originating node (node C, node E, node G) located in the subnet of CC-21 (1-21) operates in the same manner as that of node A or node B, thus receiving node (node D, node F, node H). Request to process the connection control with the (S309-1 ~ S309-3).

For example, Node C of BC-1 (2-1) receives a connection control command from Node B of CC-11 (1-11) and then processes BC-1 (2) before processing connection control with Node D. -1) path information with the nodes C and D can be received. At this time, BC-1 (2-1) is able to process the query request of the node C only when the synchronization information received from the MC (3) and the synchronization information received from the node C.

In this way, if connection control on each subnet is successful, outgoing nodes (Node A, Node C, Node E, and Node G) located in each subnet can control the connection control results through their connection instance control component 29. (S310-1 to S310-4), and finally, Node A of CC-11 (1-11) checks the connection state of Pass A / B / C / D / E / F / G / H. (4) to notify (S311).

In this state, the user terminal a (4) is connected to the user terminal b (5) via the connection test unit 34 of the user terminal a (4), or the node A is the connection test unit 34 of the node A You can test the connection with Node H.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those skilled in the art.

1 is a diagram illustrating a network system in which user adaptive connection control is performed according to an embodiment of the present invention.

2 is a diagram illustrating a configuration of a user adaptive connection control apparatus according to an embodiment of the present invention.

3 is a view for explaining a user adaptive connection control method according to an embodiment of the present invention.

4 is a view for explaining a user adaptive connection control method according to another embodiment of the present invention.

5 is a view for explaining a user adaptive connection control method according to another embodiment of the present invention.

Claims (10)

A query analysis component for receiving a query transmitted from the outside; A service analysis component that analyzes the query and determines a connection control method for processing the query among semi-switched, switched and provisioned connection control methods, wherein the provisioned connection control method uses a management system Control the connection, the switched connection control method controls the connection using a control plane, and the semi-switched connection control method is a mixed method of a provisional connection control method and a switchable connection control method; A resource control component for performing resource allocation, resource deletion, synchronization information for switchable connection control, and rollback operation according to the connection control operation by the query; A path determining component for determining a node or a network path required to provide a resource according to the connection control operation and then notifying the resource control component; A topology discovery component that determines a network shape of the coverage domain, determines a route within the coverage domain, and then informs the resource control component; And A connection instance control component for setting up and releasing an instance for performing the connection control operation under control of the resource control component, and controlling setting and releasing of resources for the instance; A user-adaptive connection control device characterized in that it supports both semi-switched, switched and provisioned connection control methods. The method of claim 1, And a connection configuration information management component for defining and determining a connection control method between nodes and networks in the application domain, and generating and deleting connection configuration information. The method of claim 1, A resource discovery component for determining a resource shape of the application domain; And And a resource permission component for determining whether to allow a resource request for the connection control operation according to the resource shape of the application domain. The method of claim 1, And a user authentication component for performing user authentication for the user who requested the query. The method of claim 4, wherein the user authentication component is A user adaptive connection control device characterized in that user authentication is performed only when the same user authentication is not performed by another network device. The method of claim 1, And a signaling component for controlling setting and releasing of resources for an instance of the connection instance control component using a signaling protocol function. The method of claim 1, And a routing component for determining a route within said coverage domain using a routing protocol function. The method of claim 1, And a connection test component for performing a one-way or two-way connection test when the end-to-end connection setting according to the connection control operation is successfully performed. The method of claim 1, wherein the query analysis component And if the query is to be processed at a higher level network device, forwarding the query to the higher level network system. 10. A connection according to one of the connection control methods of provisioned, semi-switched, and switched, comprising servers and nodes each including the user-adaptive connection control device according to any one of claims 1 to 9. Take control, The servers may include at least one of a cluster network controller, a backbone network controller, and a master controller.

Images