KR102157538B1 - System for upgrading / updating software of virtual network apparatus or system, method thereof - Google Patents

Abstract

The present invention relates to a system and method for updating software of a virtual network device or system. The software update method of a virtual network device according to the present invention includes the steps of: receiving a software update request signal of an existing virtual network device in operation; Generating a new virtual network device reflecting the software update according to the software update request signal; Requesting a peripheral transmission device corresponding to the existing virtual network device to update the configuration data so that new traffic destined for the existing virtual network device is transmitted to the new virtual network device; And removing the existing virtualization network device when the number of sessions connected through the existing virtualization network device or traffic through the existing virtualization network device is less than a preset value.

Description

A system and method for updating the software of a virtualized network device or system {SYSTEM FOR UPGRADING / UPDATING SOFTWARE OF VIRTUAL NETWORK APPARATUS OR SYSTEM, METHOD THEREOF}

The present invention relates to a system and a method related to a virtual network device or system, and more particularly, to a system and method for updating software included in a virtual network device or system.

In providing a communication service to a customer, a system upgrade may be required for reasons such as providing a new service or improving an existing service.

In particular, when upgrading operating software for a service, it is very important to determine when and how to switch between existing service software and new service software in connection with service interruption or service quality degradation.

For example, forcibly stopping service software that currently provides a specific service and installing new service software causes great inconvenience and complaints to customers who used existing services.

Therefore, existing communication service operators gradually move the sessions connected to use the service to other networks or service devices in the vicinity when upgrading the service software, and remove all sessions or traffic using the service from the system requiring upgrade. After that, I used a method of installing and operating new service software on the system.

However, in this case, there is a problem that the total service capacity of the network function system decreases and service availability is lowered during the upgrade.

That is, when existing sessions are moved to a neighboring network or service device, the processing load of the devices that need to process the sessions increases, and the overall network operation efficiency decreases.

In addition, data conversion is performed in the process of moving the session itself processed by a specific device to another device, and there is a possibility that a service interruption may occur due to an error occurring during data conversion.

This is the same even when the system is operated in an active/standby redundant manner.

Due to this problem, the service software upgrade work is performed at night when there are few service customers, and the situation is also heavily dependent on the manual work of the person in charge.

Publication Patent No. 10-2005-0072279

The present invention has been conceived to solve the above-described problems in the related art, and an object thereof is to provide a system and method for stably and efficiently upgrading the service software while maintaining the current service.

In order to achieve the above object, a software update system for a virtual network device according to the present invention includes: a request receiving unit for receiving a software update request signal for an existing virtual network device in operation; A virtualization device generation unit for generating a new virtualization network device in which a corresponding software update is reflected according to the software update request signal; A setting change request unit for requesting an update of setting data for transmitting new traffic destined to the existing virtual network device to the new virtual network device to a peripheral transmission device corresponding to the existing virtual network device; And a virtualization device removal unit that removes the existing virtualization network device when the number of sessions connected through the existing virtualization network device or traffic through the existing virtualization network device is less than a preset value.

In addition, in order to achieve the above object, a system for processing software update of an active virtual network device and a standby virtual network device included in a virtual network system using an active/standby duplex method according to the present invention. A request receiving unit for receiving a software update request signal of an existing virtual network system in operation; A virtualization device generation unit for generating a first virtualization network device and a second virtualization network device to which a corresponding software update is reflected according to the software update request signal; After replacing the existing standby virtualization network device among the virtualization network systems with the first virtualization network device generated by the virtualization device generation unit, the replaced first virtualization network device is switched to an active state, and the existing active virtualization network device A primary processing unit for switching the signal to a standby state; And a secondary processing unit that replaces the existing active virtualization network device converted to the standby state by the primary processing unit with a second virtualization network device generated by the virtualization device generation unit.

In addition, in order to achieve the above object, a software update method of a virtual network device according to the present invention includes the steps of: receiving a software update request signal of an existing virtual network device in operation; Generating a new virtual network device reflecting the software update according to the software update request signal; Requesting a peripheral transmission device corresponding to the existing virtual network device to update the configuration data so that new traffic destined for the existing virtual network device is transmitted to the new virtual network device; And removing the existing virtualization network device when the number of sessions connected through the existing virtualization network device or traffic through the existing virtualization network device is less than a preset value.

In addition, in order to achieve the above object, a method of performing a software update in a virtual network system using an active/standby duplex method according to the present invention includes a software update request for an existing virtual network system in operation. Receiving a signal; Generating a new virtual network device reflecting the software update according to the software update request signal; Replacing an existing standby virtual network device among the virtual network systems with the created new virtual network device; Switching the new virtual network device to an active state and switching the existing active virtual network device to a standby state; A new virtual network device that additionally creates a new virtual network device reflecting the software update according to the software update request signal, and adds the existing active virtual network device that has been switched to the standby state according to the state change in step (d). It includes the step of replacing with.

As described above, according to the present invention, it is possible to prevent a decrease in service capacity when a virtual network device (software) is updated (major upgrade), and furthermore, since an existing session is maintained even during the upgrade, user inconvenience can be minimized. In addition, it is possible to increase the efficiency of communication network operation by immediately removing all existing virtual network devices (software, VNFs) that have terminated sessions immediately after all sessions are terminated (expired).

In addition, when the virtual network device (software) that is redundant (software) is updated (minor update), it maintains the redundancy structure, while providing a quick response when an error occurs during the update.

1 is a schematic configuration diagram of an entire communication system including an update system according to an embodiment of the present invention,
Fig. 2 is a functional block diagram of the update system of Fig. 1;
3 and 4 are a control and signal flow diagram of the entire communication system including the update system according to the first embodiment of the present invention,
5 is a functional block diagram of an update system according to a second embodiment of the present invention;
6 is a control flowchart of the update system of FIG. 5.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, each embodiment according to the present invention is only one example for aiding understanding of the present invention, and the present invention is not limited to these embodiments. In particular, the present invention may be configured with a combination of at least one or more of individual configurations, individual functions, or individual steps included in each embodiment.

In particular, for convenience, some claims in the claims include alphabets such as'(a)', but these alphabets do not prescribe the order of each step.

In addition, each signal mentioned in each embodiment according to the present invention may mean one signal transmitted by one connection or the like, but may also mean a series of signal groups transmitted for the purpose of performing a specific function to be described later. . That is, in each embodiment, a plurality of signals transmitted at a predetermined time interval or transmitted after receiving a response signal from a counterpart device may be expressed as one signal name for convenience.

The overall system configuration including the software update system (hereinafter, simply referred to as "update system 100") of the virtualization network device 300 according to an embodiment of the present invention is as shown in FIG. 1.

As shown in the figure, the entire system includes a user terminal, a virtual network device 300, a transmission device 200, an interworking device 400, and an update system 100.

Here, the user terminal is a terminal used by a customer who uses a communication service, and may correspond to a portable wireless communication terminal such as a smart phone or a wired communication terminal such as a home computer.

The virtualization network device 300 is configured to provide a specific service to a customer, and although the term "device" is used herein, the virtualization network device 300 may mean hardware equipment, or installed on a specific hardware device. It may correspond to a software module.

In particular, in the present embodiment, it is assumed that the virtualization network device 300 refers to software generated and operated by a virtualization technique in specific hardware.

In the present embodiment, as an example, a device that performs a specific service providing function is generated by a virtualization technique, and in this case, a plurality of virtualization devices may be simultaneously operated on one hardware.

Creation and operation of a specific software by a virtualization technique itself corresponds to a known technique, and thus a more detailed description thereof will be omitted.

The transmission equipment 200 is to perform a function related to traffic transmission, such as setting a path for traffic flowing into the virtual network device 300 and traffic drawn from the virtual network device 300, for example, a node It may correspond to a router or switch that performs route processing according to name, IP address, port, etc.

In addition, the interworking device 400 provides information necessary for the operation of the virtualization network device 300 or manages data generated or collected according to the operation of the virtualization network device 300, for example, a mobile communication network. This may be a policy charging resource function (PCRF) that performs a function of setting a service-based quality assurance (QoS) policy and a flow-based charging rule according to the use of communication services.

On the other hand, the software update system 100 of the virtual network device 300, that is, the update system 100 updates the virtual network device 300 itself, or a specific function included in the virtual network device 300 Perform various treatments for

That is, in the present embodiment, the virtual network device 300 is created and operated by a virtualization technique and may itself correspond to one software, and the update system 100 updates the entire virtual network device 300 Or, various processes for updating a specific software module included in the virtualization network device 300 are performed.

A first example of the functional blocks of such an update system 100 is shown in FIG. 2.

As shown in the figure, the update system 100 includes a request receiving unit 110, a virtualization device generation unit 120, a setting change request unit 130, a virtualization device removal unit 140, and a determination unit 150. It can be configured.

Here, the request receiving unit 110 performs a function of receiving a software update request signal for the existing virtual network device 300 in operation.

Such an update request signal may be input by an administrator or may be received from an external server.

The update request signal may include information for specifying the update target (for example, update target software ID, version, etc.) or new software reflecting the update contents, and parameters thereof.

The virtualization device generation unit 120 performs a function of generating a new virtualization network device 300 reflecting the software update according to the software update request signal received from the request receiving unit 110.

For example, when the virtualization network device 300 is created and operated on a specific hardware by a virtualization technique, the virtualization device generation unit 120 performs a new virtualization on the specific hardware based on the new software included in the update request signal. The network device 300 can be newly created and installed by a virtualization technique.

The creation and installation of the virtualization device itself corresponds to a known technology as described above, so a more detailed description is omitted. Hereinafter, the previously operated virtualization network device 300 is referred to as'existing virtualization network device 300. ', and the newly created virtualization network device 300 is referred to as'new virtualization network device 300'.

The setting change request unit 130 is a peripheral transmission device corresponding to the existing virtualization network device 300 to update the setting data so that new traffic destined for the existing virtualization network device 300 is transmitted to the new virtual network device 300 Performs the function requested to (200).

For example, in order for various requests from the user terminal to reach the virtual network device 300, devices that analyze the request of the user terminal and perform packet path processing according to the analysis, that is, the transmission equipment 200, are required. The transmission device 200 performs an appropriate path processing function according to the configuration data, and the configuration change request unit 130 provides the transmission devices 200 that perform such path processing to the existing virtual network device 300. For traffic, a request is made to update configuration data to be transmitted to the new virtual network device 300.

That is, if the user's service request signal has previously been transmitted to the existing virtualization network device 300, the user's service request signal generated later is to request the update of the configuration data so that it is transmitted to the new virtualization network device 300.

For a specific example, a first transmission device 200 and a second transmission device 200 exist, and among them, path processing for service processing provided by the existing virtual network device 300 is the second transmission device 200 ), the setting change request unit 130 transmits new traffic destined to the existing virtual network device 300 to the second transmission device 200, which is the transmission device 200 corresponding to the existing virtual network device 300. When detected, the traffic is requested to be transmitted to the new virtualized network device 300 (ie, requesting to update the configuration data).

To this end, the setting change request unit 130 has a matching table of each virtual network device 300 and various transmission equipment 200, or obtains the relevant information by requesting it from an external predetermined server (not shown). I can.

The configuration data for path processing may correspond to node information, IP information, port information, session information, etc. As an example, the new virtualization network device 300 is a Serving/PDN Gateway (SPGW) used in a Long Term Evolution (LTE) system. ) In the case of a Virtual Network Function (VNF), routing information (node name, IP address, port, etc.) for connecting the transmission device 200 to the corresponding SPGW VNF and other devices may correspond to this. The packet path processing itself performed on the network corresponds to a known technique, and thus a more detailed description thereof will be omitted.

Accordingly, the user's service provision request signal does not reach the existing virtual network device 300, but reaches the new virtual network device 300.

In addition, the setting change request unit 130 requests the peripheral interworking equipment 400 corresponding to the existing virtual network device 300 to update the setting data for interworking with the new virtual network device 300 according to the software update request signal. May be.

As mentioned above, various peripheral devices 400 may be required to perform functions of the existing virtualization network device 300, and the setting change request unit 130 is, for example, new to these interlocking devices 400. For traffic, it is possible to request (update the setting data) to interwork with the new virtual network device 300.

When a new SPGW VNF is generated as in the case of the previous example, a Policy Charging Resource Function (PCRF) or a Mobility Management Entity (MME) may correspond to the interworking equipment 400, and the setting change request unit 130 may correspond to the interlocking equipment ( 400) can be requested to update interlocking station data information (Node name/Node ID/station number information/IP/Port, etc.) for SPGW VNF.

Since the update of the transmission device 200 and the update of the interworking device 400 are similar in that the setting data required for the function operation is updated, a duplicate description is omitted.

Meanwhile, the determination unit 150 performs a function of determining whether the new virtualization network device 300 is abnormal based on the test traffic.

For example, after the new virtual network device 300 is created, the determination unit 150 generates test traffic at a specific point in time or periodically and transmits it to the new virtual network device 300, and the new virtual network device 300 ), it may be determined whether or not the new virtualization network device 300 is abnormal.

The virtualization device removal unit 140 removes the existing virtualization network device 300 when the number of sessions connected through the existing virtualization network device 300 or traffic through the existing virtualization network device 300 is less than one or less than a preset value. Performs the function of

That is, as described above, a new service request signal is transmitted by the user to the new virtual network device 300, but a session already connected to the virtual network device 300 still exists, and as long as the session exists, the session Through the user's request traffic is continuously transmitted to the existing virtual network device 300.

However, when a predetermined session retention time elapses or when the user terminates the service use, the session disappears. Since a new session is no longer created in the existing virtual network device 300, the existing virtual network device ( 300) and the number of connected sessions decreases.

Therefore, the virtualization device removal unit 140 continuously monitors the number of sessions in charge of the existing virtualization network device 300 so that the number is less than or equal to a preset value (for example, less than 10 or less than 1). This is to remove the existing virtual network device 300.

As a special example, when it is determined that at least one of a session connected through the existing virtualization network device 300 and traffic through the existing virtualization network device 300 is not present, the virtualization device removal unit 140 ) Can also be removed.

When the amount of traffic is monitored instead of the number of sessions and directed to the existing virtualization network device 300 or the amount of traffic generated by the existing virtualization network device 300 is less than or equal to a preset value, the virtualization device removal unit 140 It goes without saying that the virtualization network device 300 may be removed.

Here, removing the existing virtualization network device 300 may mean only stopping the execution, or deleting the existing virtualization network device 300 from the hardware (server) on which the existing virtualization network device 300 was installed. It includes doing. That is, in the present embodiment, since the virtual network device 300 is configured of software as an example, it is obvious that the existing virtual network device 300 can be removed by deleting the software.

At this time, the virtualization device removal unit 140 may remove the existing virtualization network device 300 only when the determination unit 150 described above determines that the new virtualization network device 300 is not abnormal.

That is, if there is a problem with the new virtualization network device 300, if the existing virtualization network device 300 is removed, the service provision is stopped and it may take a considerable amount of time to return it. Therefore, the virtualization device removal unit 140 Before removing the network device 300, the determination of the determination unit 150 is checked.

Hereinafter, signals and control flows of the entire communication system including the update system 100 according to the first embodiment of the present invention will be described with reference to FIGS. 3 and 4.

In the following description of the present embodiment, it is assumed that the software of the virtual network device 300 to be updated is a Virtual Networking Function (VNF).

First, FIG. 3 shows a process of generating a new VNF according to an update request signal.

The manager terminal transmits an update request signal for the existing VNF to the update system 100 according to the manager's operation (step S1), and the VNF update request signal includes a VNF ID, an update software version/ID, and a newly created VNF image. Or parameter values may be included.

The update system 100 generates a new VNF based on the information included in the update request signal (step S3).

In the present embodiment, it is an example that the update system 100 is configured as one device, but as another example, the update system 100 substantially includes an integrated network management manager (not shown) that provides a management function for network management. When it is composed of NFV_Orchestrator (not shown,) that creates and manages VNF, the integrated network management manager automatically defines an action list for NFV update as a workflow (Work-Flow), and then requests NFV_Orchestrator to update NFV. Accordingly, NFV_Orchestrator can perform functions such as creating and loading new NFVs, and deliver the result to the integrated network management manager.

In addition, the update system 100 obtains information on the transmission equipment 200 matched with the existing VNF, and then requests the transmission equipment 200 to update the setting data (step S5). The configuration data request signal may include various types of information (eg, IP for routing, port information, etc.) for delivering new traffic generated later to a newly created VNF instead of the existing VNF.

Accordingly, the transmission equipment 200 performs setting update (step S7), and transmits a setting update response signal to the update system 100 (step S9).

In addition, the update system 100 obtains information on the interworking equipment 400 matched with the existing VNF, and then requests the corresponding interworking equipment 400 to update the setting data (step S11). Such a configuration data request signal may include various information for appropriately performing billing processing for communication traffic through the newly created VNF as well as routing information for the normal operation of the transmission equipment 200 described above. have.

Accordingly, the interworking equipment 400 performs setting update (step S13), and transmits a setting update response signal to the update system 100 (step S15). Receiving this, the update system 100 transmits a VNF update response signal to the manager terminal (step S17).

As such, when the transmission device 200 and the interworking device 400 are updated, new traffic thereafter are transmitted to and processed as a new VNF instead of the existing VNF.

Of course, at this time, the session that has already been formed through the existing VNF is maintained until time elapses or the user's service use is interrupted.

Hereinafter, a process in which the existing VNF is finally removed after the new VNF is generated will be described in detail with reference to FIG. 4.

That is, when onboarding and activating a new VNF while going through the process as shown in FIG. 3 (step S21), the existing VNF processes the previously created session (step S23), and the new VNF processes the newly connected session. (Step S25).

Thereafter, the update system 100 continuously monitors the number of sessions remaining in the existing VNF (step S27).

As a result of monitoring, when the number of sessions remaining in the existing VNF is less than a preset value (for example, 1) (step S29), the update system 100 deletes the existing VNF (step S31), and eventually only the new VNF remains. The request is processed.

Here, the monitoring target information may include at least one of calls per second (CPS), transaction per second (TPS), session count, communication packet amount, and traffic amount.

In the above-described embodiment, it is assumed that the update target is not duplicated. Hereinafter, a processing procedure when the update target is duplicated will be described.

The functional blocks of the update system 100 according to the second embodiment of the present invention are as shown in FIG. 5.

In the present embodiment, as described above, the operation is performed in a redundant manner. For example, the device currently providing services is referred to as an active virtual network device 300, and a function failure of the active virtual network device 300 The device in the standby state in preparation for the like may be referred to as a standby virtual network device 300, and the following will be described on the premise of this state.

As shown in the figure, the update system 100 according to the second embodiment of the present invention includes a request receiving unit 110 ′, a virtualization device generating unit 120 ′, a primary processing unit 130 ′, and a secondary processing unit ( 140').

Here, the request receiving unit 110 ′ performs a function of receiving a software update request signal for the existing virtual network device 300 in operation.

Such an update request signal may be input by an administrator or may be received from an external server. Information for specifying the update target (for example, the update target software ID, version, etc.) or new software reflecting the update Parameters, etc. may be included.

The request receiving unit 110 ′ according to the present embodiment corresponds to the request receiving unit 110 ′ in the previous embodiment and may include all of the features mentioned in the previous embodiment.

The virtualization device generation unit 120' performs a function of generating a new virtualization network device 300 reflecting the software update according to the software update request signal received from the request reception unit 110'.

In particular, the virtualization device generation unit 120 ′ performs a function of generating the first virtualization network device 300 and the second virtualization network device 300 to which the corresponding software update is reflected according to a software update request signal.

Here too, each virtualization network device 300 is created and operated by a virtualization technique as mentioned in the previous embodiment and may itself correspond to one software. In this embodiment, each virtualization network device 300 Let's focus on updating itself.

Creation and installation of the virtualization device itself corresponds to a known technology as described above, so a more detailed description will be omitted.

The primary processing unit 130 ′ performs a function of replacing the existing standby virtualization network device 300 among the virtualization network systems with the first virtualization network device 300 generated by the virtualization device generation unit 120 ′. , After removing the existing standby virtualization network device 300 from among the virtualization network systems, the first virtualization network device 300 generated by the virtualization device generation unit 120 ′ may be set to a standby state.

Subsequently, the primary processing unit 130' converts the replaced first virtualized network device 300 into an active state and also performs a function of switching the existing active virtualization network device 300 into a standby state.

On the other hand, the second processing unit 140 ′ is a second virtualization network device generated by the virtualization device generation unit 120 ′ of the existing active virtualization network device 300 converted to the standby state by the first processing unit 130 ′. 300).

As an example, the secondary processing unit 140 ′ removes the existing active virtualization network device 300 that has been switched to the standby state according to the state transition by the primary processing unit 130 ′, and then, in the virtualization device generation unit 120 ′. The generated second virtualization network device 300 is set to a standby state.

As described above, when the virtual network device 300 is operated in a redundant state by sequential processing of the first processing unit 130 ′ and the second processing unit 140 ′, damage due to an error in the update process can be minimized.

That is, since the primary processing unit 130 ′ switches the first virtual network device 300 newly replaced by the standby to the active state and switches the existing active virtual network device 300 to the standby state, a new first When the virtualization network device 300 does not operate normally, the active and standby virtualization network device 300 may be switched again so that a service is provided through the existing virtualization network device 300.

In addition, after the upgraded service is provided by the first processing unit 130 ′, the second virtualized network device 300 updated by the second processing unit 140 ′ is set to the standby state, thereby minimizing service disconnection time. In addition, it can ensure that the state of redundancy is quickly maintained.

Hereinafter, a control flow of the update system 100 according to the second embodiment of the present invention will be described with reference to FIG. 6.

In FIG. 6, for convenience, the update system 100 is made up of an integrated network management manager and NFV_Orchestrator as an example, and major functions of the integrated network management manager and NFV_Orchestrator are as described above.

In FIG. 6, the process of generating the virtualized network device 300 described in FIG. 3 is the same, and thus is omitted.

In addition, in the present embodiment, it is assumed that the virtual network device 300 to be updated is a Virtual Network Function Component (VNFC) corresponding to a part of the VNF. In this case, it can be said that it corresponds to an update for a smaller part, that is, a minor update than the update of the VNF mentioned in the previous embodiment.

That is, for convenience, the update of the VNF can be called a major upgrade, and the update of the VNFC can be called a minor update.

First, when the VNF package is on-boarded and activated (step S41), when there is a request from an administrator, the integrated network management manager requests the NFV_Orchestrator to update the VNF package (step S47). The signal may include a VNF package ID, VNFC instant ID, etc., which are information on the update target, and may include an updated image as update information content.

VNF_Orchestrator checks the VNFC instant information to be applied (step S47), and transmits an update response signal to the integrated network management manager when it is determined that the update is possible.

Thereafter, the VNF_Orchestrator deletes the existing standby VNFC (step S51), generates a new VNFC according to the requested content, and operates as a standby (step S53).

Subsequently, the VNF_Orchestrator switches the new standby VNFC to active, and accordingly, the existing active VNFC is switched to the standby state (step S55).

In addition, the VNF_Orchestrator deletes the existing standby VNFC that has been switched over (step S57), and additionally generates a new VNFC to operate as a standby (step S59).

When such an update is completed, the VNF_Orchestrator updates the VNF instant version information or the like (step S61) and transmits an update completion response signal to the integrated network management manager (step S63).

Accordingly, the existing VNFC is quickly converted to a new VNFC, and in particular, the redundant operation is maintained.

In the above-described embodiments, a major upgrade and a minor update have been described separately. When there is a request from an administrator, the update system 100 determines whether a major upgrade is required or a minor update is required according to the request. You may.

As described above, in the major upgrade (FIGS. 3 and 4), the existing VNF is maintained until the existing session disappears, but in the minor update (FIG. 6), the existing VNFC is immediately replaced with a new VNFC, and the update system 100 Such a method selection may be based on information included in an update request signal received from an administrator or the like.

To this end, it goes without saying that, in the update system 100, software layer information or related information for distinguishing a major upgrade target and a minor update target may be stored in advance.

Meanwhile, it goes without saying that the process of performing each of the above-described embodiments may be performed by a program or application stored in a predetermined recording medium (eg, computer-readable). Here, the recording medium includes all of an electronic recording medium such as a random access memory (RAM), a magnetic recording medium such as a hard disk, and an optical recording medium such as a compact disk (CD).

At this time, the program stored in the recording medium may be executed on hardware such as a computer or a smart phone to perform each of the above-described embodiments. In particular, at least one of the functional blocks of the update system according to the present invention described above may be implemented by such a program or application.

In addition, the present invention is not limited to the specific embodiments described above, but can be implemented by various modifications and modifications without departing from the gist of the present invention.

In particular, the process of creating a new standby virtual network device according to the redundancy configuration and then replacing it with the existing active virtual network device, and then creating and operating an additional new standby virtual network device in the standby state can be applied to major upgrades. .

It will be apparent that such modifications and modifications are included in the present invention if they fall within the appended claims.

100: update system 200: transmission equipment
300: virtual network device 400: interlocking equipment
110,110': request receiving unit 120,120': virtualization device generation unit
130: setting change request unit 140: virtualization device removal unit
150: judging unit 130': primary processing unit
140': secondary processing unit

Claims (16)

(a) receiving a software update request signal of an existing virtual network device in operation;
(b) generating a new virtual network device reflecting the software update according to the software update request signal;
(c) requesting, from a peripheral transmission device corresponding to the existing virtual network device, to update the configuration data so that new traffic destined for the existing virtual network device is transmitted to the new virtual network device;
(d) removing the existing virtualization network device when the number of sessions connected through the existing virtualization network device or the traffic through the existing virtualization network device is less than a preset value. How to update the software. The method of claim 1,
And requesting, in response to the software update request signal, to update setting data for interworking with the new virtual network device to a peripheral interworking device corresponding to the existing virtual network device. How to update. The method of claim 1,
In the step (d), when it is determined that at least one of a session connected through the existing virtualization network device and traffic through the existing virtualization network device is not present, the existing virtualization network device is removed. How to update the software. The method of claim 1,
Further comprising determining whether or not the new virtualization network device is abnormal based on the test traffic,
In the step (d), the existing virtual network device is removed only when the new virtual network device through the test traffic is not abnormal. In a method of performing software update in a virtualized network system using an active/standby duplication method,
(a) receiving a software update request signal of an existing virtual network system in operation;
(b) generating a new virtual network device reflecting the software update according to the software update request signal;
(c) replacing an existing standby virtual network device among the virtual network systems with the created new virtual network device;
(d) converting the new virtual network device to an active state and converting the existing active virtual network device to a standby state;
(e) A new virtual network device that reflects the software update according to the software update request signal is additionally created, and the existing active virtual network device that has been switched to the standby state according to the state change in step (d) is added to the newly created Software update method of a virtual network system comprising the step of replacing with a virtual network device. The method of claim 5,
The step (c),
(c1) removing the existing standby virtualization network device from the virtualization network system;
(c2) setting the new virtual network device created in step (b) to a standby state. The method of claim 5,
The step (e),
(e1) removing the existing active virtualization network device that has changed to the standby state according to the state change in step (d);
(e2) creating a new virtual network device in which the software update according to the software update request signal is additionally reflected, and setting the additionally generated new virtual network device to a standby state. How to update your software.
A computer-readable recording medium storing a program for executing the method of any one of claims 1 to 7. An application program stored in a computer-readable recording medium to execute the method of claim 1 in combination with hardware. A request receiving unit for receiving a software update request signal of an existing virtual network device in operation;
A virtualization device generation unit for generating a new virtualization network device in which a corresponding software update is reflected according to the software update request signal;
A setting change request unit for requesting an update of setting data for transmitting new traffic destined to the existing virtual network device to the new virtual network device to a peripheral transmission device corresponding to the existing virtual network device;
Software of a virtualization network device, comprising: a virtualization device removal unit removing the existing virtualization network device when the number of sessions connected through the existing virtualization network device or traffic through the existing virtualization network device is less than a preset value Update system. The method of claim 10,
The configuration change request unit requests a peripheral interworking device corresponding to the existing virtual network device to update setting data for interworking with the new virtual network device according to the software update request signal. Update system. The method of claim 10,
The virtualization device removal unit removes the existing virtualization network device when it is determined that at least one of a session connected through the existing virtualization network device and traffic through the existing virtualization network device is not present. system. The method of claim 10,
Further comprising a determination unit for determining whether or not the new virtualization network device is abnormal based on the test traffic,
And the virtualization device removal unit removes the existing virtualization network device only when the determination unit determines that the new virtualization network device is not abnormal. In the system for processing software update of an active virtual network device and a standby virtual network device included in a virtual network system using an active/standby duplex method,
A request receiving unit for receiving a software update request signal of an existing virtual network system in operation;
A virtualization device generation unit for generating a first virtualization network device and a second virtualization network device to which a corresponding software update is reflected according to the software update request signal;
After replacing the existing standby virtualization network device among the virtualization network systems with the first virtualization network device generated by the virtualization device generation unit, the replaced first virtualization network device is switched to the active state, and the existing active virtualization network device is replaced. A primary processing unit for switching to a standby state;
A software update system for a virtualized network system, comprising: a secondary processing unit that replaces an existing active virtualization network device converted to a standby state by the primary processing unit with a second virtualization network device generated by the virtualization device generation unit. . The method of claim 14,
The first processing unit removes the existing standby virtual network device from the virtual network system, and then sets the first virtual network device generated by the virtual device generation unit to a standby state. . The method of claim 14,
The secondary processing unit removes the existing active virtualization network device that has been switched to the standby state according to the state change by the primary processing unit, and then sets the second virtualization network device generated by the virtualization device generation unit to the standby state. Software update system of a virtualized network system, characterized in that.

Images