CN107872384B

CN107872384B - Network bandwidth adjusting method and device

Info

Publication number: CN107872384B
Application number: CN201610859084.3A
Authority: CN
Inventors: 李宏飚; 陈建业; 段逸飞
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-09-28
Filing date: 2016-09-28
Publication date: 2021-09-28
Anticipated expiration: 2036-09-28
Also published as: CN107872384A

Abstract

The embodiment of the invention provides a method and a device for adjusting network bandwidth, wherein the method comprises the following steps: receiving a request instruction for requesting to adjust a link bandwidth between a first virtual interface of a first router and a second virtual interface of a second router; and according to the content of the request instruction, sending an adjusting instruction for instructing to adjust the link bandwidth between the first virtual interface of the first router and the second virtual interface of the second router to the IP controller and/or the optical controller, and enabling the IP controller and/or the optical controller to adjust the link bandwidth between the first virtual interface and the second virtual interface. The embodiment of the invention can simplify the operation and maintenance work of the network, thereby accelerating the speed of opening the internet service.

Description

Network bandwidth adjusting method and device

Technical Field

The present invention relates to the field of communications network technologies, and in particular, to a method and an apparatus for adjusting a network bandwidth.

Background

The current basic network is constructed based on the Internet Protocol (IP) technology, the IP network is used as a service carrier, and according to the development condition of the service, the network needs to be periodically optimized, including bandwidth adjustment, device point compensation, etc., wherein the bandwidth adjustment is an important work for IP network planning.

At present, two methods for adjusting the bandwidth of an IP network are mainly included, and the existing method is described by taking the architecture of the IP network shown in fig. 1 as an example, where the architecture includes a router a, a router B, a router C, a wavelength division device a, a wavelength division device B, and a wavelength division device C, where the flow of the first method is as follows: firstly, acquiring flow statistic data of a period of time, such as a quarter, and judging bandwidth adjustment according to the statistic data and experience of network operation and maintenance personnel; then according to the requirement of bandwidth adjustment, a path is artificially planned and adjusted, and equipment is configured through a network management system; as shown in fig. 1, when the traffic between the router a and the router B is too large, bandwidth needs to be increased, but the bandwidth from the router C to the router B has redundancy, the router C is planned to increase bandwidth in a roundabout manner, and an operation and maintenance worker configures a load sharing path from the router a to the router B through the network manager; and finally, after the network is converged, counting the flow distribution condition of the network again, finishing adjustment if the flow distribution condition meets the requirement, and returning to the first step to re-optimize the network if the flow distribution condition does not meet the expected target. The second method comprises the following steps: firstly, acquiring flow statistic data of a period of time, such as a quarter, and judging bandwidth adjustment according to the statistic data and experience of network operation and maintenance personnel; then according to the requirement of bandwidth adjustment, a path is artificially planned and adjusted, and equipment is configured through a network management system; as shown in fig. 1, when the traffic between the router a and the router B is too large, bandwidth needs to be increased, and the load sharing is implemented by adding the interconnection port from the router a to the router B and adding the link of the optical network, and the operation and maintenance personnel connect the optical fiber by adding the hardware plate of the network device and configure the port or link binding through the network manager, so as to implement load sharing between the newly added port and the original port.

It can be seen that, the bandwidth adjustment of the existing IP network is mainly based on the operation statistical data of the network, and the bandwidth adjustment is performed manually by operation and maintenance personnel, and the adjustment process changes the network topology of the IP network and affects the normal operation of the service, so that generally such adjustment needs to be performed in a time period with a small network traffic, such as late at night, which brings much trouble to the network adjustment. In addition, based on the adjustment in this way, as the IP network topology changes, multiple trial and error tests are also required to determine whether the adjusted network meets the requirements.

In summary, the current method for adjusting the bandwidth of the IP network requires manual configuration and coordination of resources of the IP and the optical network, which results in tedious operation and maintenance work of the network and slow service provisioning of the internet.

Disclosure of Invention

The embodiment of the invention aims to provide a method and a device for adjusting network bandwidth, which can simplify network operation and maintenance work and further accelerate the speed of opening internet services.

In order to achieve the above object, an embodiment of the present invention provides a method for adjusting a network bandwidth, which is applied to an H controller, where the H controller is a software defined network SDN controller for controlling an IP controller and an optical controller, the IP controller is an SDN controller for controlling an IP network, and the optical controller is an SDN controller for controlling an optical network, and the method for adjusting the network bandwidth includes:

Receiving a request instruction for requesting to adjust a link bandwidth between a first virtual interface of a first router and a second virtual interface of a second router;

and according to the content of the request instruction, sending an adjusting instruction for instructing to adjust the link bandwidth between the first virtual interface of the first router and the second virtual interface of the second router to the IP controller and/or the optical controller, and enabling the IP controller and/or the optical controller to adjust the link bandwidth between the first virtual interface and the second virtual interface.

The step of receiving a request instruction for requesting adjustment of a link bandwidth between a first virtual interface of a first router and a second virtual interface of a second router includes:

receiving a request instruction sent by a server for adjusting the network bandwidth; the request instruction is generated by the server according to a preset bandwidth adjustment strategy.

Wherein, after the step of sending an adjustment instruction for instructing to adjust the link bandwidth between the first virtual interface of the first router to the second virtual interface of the second router to the IP controller and/or the optical controller according to the content of the request instruction, the method further comprises;

and receiving an adjustment result returned after the IP controller and/or the optical controller adjusts the link bandwidth from the first virtual interface to the second virtual interface, and returning the adjustment result to the server.

Wherein, according to the content of the request instruction, the step of sending an adjustment instruction for instructing to adjust the link bandwidth between the first virtual interface of the first router and the second virtual interface of the second router to the IP controller and/or the optical controller includes:

and if the content of the request instruction comprises the attribute of the newly added bandwidth, sending an adjusting instruction comprising the attribute of the newly added bandwidth to the optical controller.

After the step of sending the adjustment instruction including the attribute of the newly added bandwidth to the optical controller, the method further includes:

receiving label switching path FA-LSP between wavelength division devices returned by the optical controller;

and sending an adjusting instruction comprising a setup message for indicating to set up a label switched path gLSP based on a general multi-protocol label switching protocol for the newly added bandwidth to the IP controller, wherein the setup message carries the number of the FA-LSP.

if the content of the request instruction includes the attribute of the reduced bandwidth, an adjustment instruction including the attribute of the reduced bandwidth is sent to the IP controller.

An embodiment of the present invention further provides an adjusting device of a network bandwidth, which is applied to an H controller, the H controller is a software defined network SDN controller for controlling an IP controller and an optical controller, the IP controller is an SDN controller for controlling an IP network, the optical controller is an SDN controller for controlling an optical network, the adjusting device includes:

a first receiving module, configured to receive a request instruction for requesting adjustment of a link bandwidth between a first virtual interface of a first router and a second virtual interface of a second router;

and the first sending module is used for sending an adjusting instruction for instructing to adjust the link bandwidth between the first virtual interface of the first router and the second virtual interface of the second router to the IP controller and/or the optical controller according to the content of the request instruction, so that the IP controller and/or the optical controller can adjust the link bandwidth between the first virtual interface and the second virtual interface.

The embodiment of the present invention further provides an H controller, where the H controller is a software defined network SDN controller for controlling an IP controller and an optical controller, the IP controller is an SDN controller for controlling an IP network, the optical controller is an SDN controller for controlling an optical network, and the H controller includes the above-mentioned network bandwidth adjusting device.

The embodiment of the invention also provides a network bandwidth adjusting method, which is applied to an IP controller, wherein the IP controller is a Software Defined Network (SDN) controller for controlling an IP network, and the adjusting method comprises the following steps:

receiving an adjusting instruction sent by an H controller and used for instructing to adjust the link bandwidth between a first virtual interface of a first router and a second virtual interface of a second router;

and adjusting the link bandwidth from the first virtual interface to the second virtual interface according to the adjustment instruction.

Wherein, according to the adjustment instruction, the step of adjusting the link bandwidth from the first virtual interface to the second virtual interface includes:

adjusting a traffic engineering group corresponding to a link from the first virtual interface to the second virtual interface according to the adjustment instruction; the adjusting instruction comprises an attribute of reducing the bandwidth, or a setup message used for indicating to set up a label switching path gLSP based on a general multi-protocol label switching protocol for the newly added bandwidth, wherein the setup message carries the number of a label switching path FA-LSP between wavelength division devices.

The step of adjusting the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface according to the adjustment instruction includes:

If the adjusting instruction comprises the establishing message, calculating the gLSP according to the adjusting instruction, and sending a first instruction to the first router; the first instruction carries the number of the FA-LSP, and is used for: enabling the first router to establish a gLSP (generic routing path), and adding the gLSP to a traffic engineering group corresponding to a link from the first virtual interface to the second virtual interface;

and receiving an adjustment result returned by the first router after the gLSP is added to the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface, and returning the received adjustment result to the H controller.

if the adjustment instruction comprises the attribute of reducing the bandwidth, determining a gLSP (generic label switching path) to be deleted in a traffic engineering group corresponding to a link between the first virtual interface and the second virtual interface according to the adjustment instruction; the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface comprises a plurality of gLSPs;

sending a second instruction and an adjustment instruction comprising an attribute of reducing the bandwidth to the first router; wherein the second instructions are to: enabling the first router to delete the gLSP needing to be deleted; the adjustment instructions are for: enabling a first router to send a first request for requesting to delete an FA-LSP corresponding to a gLSP to be deleted to an optical controller through first wavelength division equipment connected with the first router;

And receiving an adjustment result returned by the first router after deleting the gLSP needing to be deleted, and returning the received adjustment result to the H controller.

if the adjustment instruction comprises the attribute of reducing the bandwidth, determining a gLSP (generic label switching path) of the bandwidth to be adjusted in a traffic engineering group corresponding to a link between the first virtual interface and the second virtual interface according to the adjustment instruction; the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface comprises a plurality of gLSPs;

sending a third instruction and an adjustment instruction comprising an attribute of reducing the bandwidth to the first router; wherein the third instructions are to: causing the first router to adjust the bandwidth of the gLSP requiring bandwidth adjustment, the adjustment instructions to: enabling the first router to send a second request for requesting adjustment of the bandwidth of the FA-LSP corresponding to the gLSP with the bandwidth needing to be adjusted to the optical controller through first wavelength division equipment connected with the first router;

and receiving an adjustment result returned by the first router after the bandwidth of the gLSP needing to adjust the bandwidth is adjusted, and returning the received adjustment result to the H controller.

The embodiment of the present invention further provides an adjusting device of a network bandwidth, which is applied to an IP controller, where the IP controller is a software defined network SDN controller for controlling an IP network, and the adjusting device includes:

a fourth receiving module, configured to receive an adjustment instruction sent by the H controller, where the adjustment instruction is used to instruct to adjust a link bandwidth between a first virtual interface of the first router and a second virtual interface of the second router;

and the first adjusting module is used for adjusting the link bandwidth from the first virtual interface to the second virtual interface according to the adjusting instruction.

The embodiment of the invention also provides an IP controller, which is a software defined network SDN controller for controlling an IP network, and the IP controller includes the above network bandwidth adjusting device.

The embodiment of the invention also provides an adjusting method of network bandwidth, which is applied to an optical controller, wherein the optical controller is a Software Defined Network (SDN) controller for controlling an optical network, and the adjusting method comprises the following steps:

Wherein, the adjustment instruction includes the attribute of the newly added bandwidth, and the step of adjusting the link bandwidth from the first virtual interface to the second virtual interface according to the adjustment instruction includes:

inquiring optical network resources according to the adjustment instruction to obtain idle bandwidth in wavelength bandwidth reserved from the first router to the second router;

and adjusting the link bandwidth from the first virtual interface to the second virtual interface according to the attributes of the idle bandwidth and the newly added bandwidth.

The step of adjusting the link bandwidth from the first virtual interface to the second virtual interface according to the attributes of the idle bandwidth and the newly added bandwidth includes:

if the idle bandwidth is larger than or equal to the newly added bandwidth, issuing a fourth instruction to a first wavelength division device connected with the first router; the fourth instruction carries the attribute of the newly added bandwidth, and the fourth instruction is used for: causing the first wavelength division device to increase a wavelength bandwidth between the first virtual interface to the second virtual interface;

and receiving an adjustment result returned by the first wavelength division equipment after increasing the wavelength bandwidth from the first virtual interface to the second virtual interface, and returning the received adjustment result to the H controller.

if the idle bandwidth is smaller than the newly added bandwidth, calculating a label switching path (FA-LSP) between the wavelength division devices according to the attribute of the newly added bandwidth, and setting a serial number for the FA-LSP;

the FA-LSP is returned to the H controller, so that the H controller sends an adjusting instruction comprising a setup message to the IP controller, the setup message is used for indicating to set up a label switching path gLSP based on a general multi-protocol label switching protocol for the newly added bandwidth, and the setup message carries the serial number of the FA-LSP;

receiving a third request sent by the IP controller through the first router and a first wavelength division device connected with the first router; the third request is used for requesting to establish an FA-LSP, and the third request is sent after the IP controller calculates the gLSP according to the received adjusting instruction;

issuing a fifth instruction to the first wavelength division equipment according to the third request; wherein the fifth instructions are for: and enabling the first wavelength division device to establish the FA-LSP.

Wherein, the method further comprises:

receiving a first request sent by an IP controller through a first router and a first wavelength division device connected with the first router; the first request is used for requesting to delete an FA-LSP corresponding to a gLSP which needs to be deleted in a traffic engineering group corresponding to a link from a first virtual interface to a second virtual interface, and the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface comprises a plurality of gLSPs;

Issuing a sixth instruction to the first wavelength division equipment according to the first request; wherein the sixth instruction is to: enabling the first wavelength division equipment to delete the FA-LSP corresponding to the gLSP needing to be deleted;

and receiving an adjustment result returned by the first wavelength division device after deleting the FA-LSP corresponding to the gLSP needing to be deleted, and returning the received adjustment result to the H controller.

Wherein, the method further comprises:

receiving a second request sent by the IP controller through a first router and a first wavelength division device connected with the first router; the second request is used for requesting to adjust the bandwidth of an FA-LSP corresponding to a gLSP needing bandwidth adjustment in a traffic engineering group corresponding to a link between a first virtual interface and a second virtual interface, and the traffic engineering group corresponding to the link between the first virtual interface and the second virtual interface comprises a plurality of gLSPs;

issuing a seventh instruction to the first wavelength division equipment according to the second request; wherein the seventh instruction is to: enabling the first wavelength division equipment to adjust the bandwidth of an FA-LSP corresponding to the gLSP needing to adjust the bandwidth;

and receiving an adjustment result returned by the first wavelength division device after adjusting the bandwidth of the FA-LSP corresponding to the gLSP needing to adjust the bandwidth, and returning the received adjustment result to the H controller.

The embodiment of the present invention further provides an adjusting device of a network bandwidth, which is applied to an optical controller, where the optical controller is a software defined network SDN controller for controlling an optical network, and the adjusting device includes:

a fifth receiving module, configured to receive an adjustment instruction sent by the H controller, where the adjustment instruction is used to instruct to adjust a link bandwidth between a first virtual interface of the first router and a second virtual interface of the second router;

and the second adjusting module is used for adjusting the link bandwidth from the first virtual interface to the second virtual interface according to the adjusting instruction.

The embodiment of the invention also provides an optical controller, which is a Software Defined Network (SDN) controller for controlling an optical network, and the optical controller comprises the above network bandwidth adjusting device.

The scheme of the invention at least comprises the following beneficial effects:

in the embodiment of the invention, when a request instruction for requesting to adjust the link bandwidth from the first virtual interface of the first router to the second virtual interface of the second router is received, an adjustment instruction for instructing to adjust the link bandwidth from the first virtual interface to the second virtual interface is sent to the IP controller and/or the optical controller according to the content of the request instruction, so that the IP controller and/or the optical controller adjust the link bandwidth from the first virtual interface to the second virtual interface, the problems of complex network operation and maintenance work and slow internet service opening are solved, the network operation and maintenance work is simplified, and the internet service opening speed is increased.

Drawings

FIG. 1 is a schematic diagram of an IP network architecture;

FIG. 2 is a flowchart illustrating a method for adjusting network bandwidth according to a first embodiment of the present invention;

fig. 3 is a schematic diagram illustrating a connection between a router a and a wavelength division device a according to a first embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating the connection of router A to router B according to a first embodiment of the present invention;

FIG. 5 is a flowchart illustrating the interaction among the server, the H controller, the light controller, and the like according to the first embodiment of the present invention;

FIG. 6 is a second flowchart illustrating the interaction among the server, the H controller, and the light controller according to the first embodiment of the present invention;

FIG. 7 is a third flowchart illustrating the interaction among the server, the H controller, the light controller, and the like according to the first embodiment of the present invention;

fig. 8 is a schematic structural diagram of a network bandwidth adjusting apparatus according to a second embodiment of the present invention;

fig. 9 is a flowchart of a method for adjusting network bandwidth according to a fourth embodiment of the present invention;

fig. 10 is a schematic structural diagram of a network bandwidth adjusting apparatus according to a fifth embodiment of the present invention;

fig. 11 is a flowchart of a method for adjusting network bandwidth according to a seventh embodiment of the present invention;

fig. 12 is a schematic structural diagram of an apparatus for adjusting network bandwidth according to an eighth embodiment of the present invention;

Fig. 13 is a schematic structural diagram of a system for adjusting network bandwidth according to a tenth embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

First embodiment

As shown in fig. 2, a first embodiment of the present invention provides an adjusting method of a Network bandwidth, which is applied to an H controller, the H controller is a Software Defined Network (SDN) controller for controlling an IP controller and an optical controller, the IP controller is an SDN controller for controlling an IP Network, and the optical controller is an SDN controller for controlling an optical Network, where the adjusting method includes:

step 201, receiving a request instruction for requesting to adjust a link bandwidth between a first virtual interface of a first router and a second virtual interface of a second router.

In the first embodiment of the present invention, by pooling physical ports of routers (e.g., the first router and the second router), virtual interfaces are configured for the routers, so that the physical ports do not carry office attributes any more, and the virtual interfaces carry office attributes. A label switching path (gLSP) based on a general multiprotocol label switching protocol (GMPLS) is established between a virtual interface of the router and the wavelength division equipment, a plurality of gLSPs form a GMPLS traffic engineering GROUP (TE GROUP), and association between the virtual interface (vIF) and a physical link is realized through the GMPLS TE GROUP, specifically, one physical link can be associated with a plurality of vIF, and one vIF can also include a plurality of physical links. The physical link refers to a link between physical ports of the router. It should be noted that the first virtual interface may be any virtual interface of the first router, and similarly, the second virtual interface may also be any virtual interface of the second router.

Here, taking the router a, the router B, the wavelength division device a, and the wavelength division device B in fig. 1 as examples to further illustrate the relationship among the virtual interfaces, the gsps, the TE GROUP, and the like, as shown in fig. 3 to 4, the router a is configured with a plurality of virtual interfaces, each virtual interface establishes a gsp with the wavelength division device a, the plurality of gsps constitute the TE GROUP, and a label switched path (FA-LSP) between two wavelength division devices (i.e., the wavelength division device a and the wavelength division device B) is established between the two wavelength division devices. Fig. 4 illustrates only one virtual interface of the router a and one virtual interface of the wavelength division device B.

Step 202, according to the content of the request instruction, sending an adjustment instruction for instructing to adjust the link bandwidth between the first virtual interface of the first router and the second virtual interface of the second router to the IP controller and/or the optical controller, so that the IP controller and/or the optical controller adjusts the link bandwidth between the first virtual interface and the second virtual interface.

In the first embodiment of the present invention, a specific implementation manner of the step 201 may be: and receiving a request instruction sent by a server for adjusting the network bandwidth. The request command is generated by the server according to a preset bandwidth adjustment strategy, and the bandwidth adjustment strategy can be set by an engineer according to experience.

Specifically, after receiving the warning information sent by a traffic analysis system, the server generates a request instruction according to a preset bandwidth adjustment strategy, and sends the request instruction to the H controller. The traffic analysis system monitors the utilization rate of the link bandwidth between a first virtual interface of a first router and a second virtual interface of a second router, and sends alarm information to the server when the utilization rate is monitored to exceed a first preset value or be lower than a second preset value. It should be noted that, in the first embodiment of the present invention, specific values of the first preset value and the second preset value are not limited, but the first preset value is required to be greater than the second preset value.

Accordingly, after the step 202 is executed and the IP controller and/or the optical controller adjusts the bandwidth of the link from the first virtual interface to the second virtual interface, the method further includes: and receiving an adjustment result returned after the IP controller and/or the optical controller adjusts the link bandwidth from the first virtual interface to the second virtual interface, and returning the adjustment result to the server.

In the first embodiment of the present invention, the first specific implementation manner of the step 202 is as follows: and if the content of the request instruction comprises the attribute of the newly added bandwidth, sending an adjusting instruction comprising the attribute of the newly added bandwidth to the optical controller, so that the optical controller adjusts the link bandwidth between the first virtual interface and the second virtual interface.

In a first implementation manner, as shown in fig. 5, an interaction flow between the server, the H controller, the light controller, and the first wavelength division device connected to the first router includes:

in the first step, the server sends a request instruction to the H controller. The content of the request instruction includes an attribute of the newly added bandwidth, and the attribute of the newly added bandwidth specifically includes: the size of the newly added bandwidth, the time delay consistent with the original link and the consistent protection attribute. Wherein the protection attributes include a working link (w), a protection link (w + p), a recovery link (w + r), and a protection link + recovery link (w + p + r). It should be noted that, when the traffic analysis system monitors that the utilization rate of the link bandwidth between the first virtual interface of the first router and the second virtual interface of the second router exceeds the first preset value, the server sends the request instruction to the H controller.

And secondly, the H controller sends an adjusting instruction to the light controller. Wherein the adjustment instruction includes an attribute of the newly added bandwidth. And the H controller sends an adjustment instruction to the light controller in order to query the light controller for the best link available.

And thirdly, the optical controller inquires optical network resources and finds that the idle bandwidth in the wavelength bandwidth reserved from the first router to the second router is larger than or equal to the newly added bandwidth. At this time, the optical controller considers that the bandwidth requirement between the first router and the second router can be met only by expanding the wavelength bandwidth from the first router to the second router.

And fourthly, the optical controller issues a fourth instruction to the first wavelength division equipment connected with the first router. The fourth instruction carries an attribute of a newly added bandwidth, and is used for indicating the first wavelength division device to expand the bandwidth, so that the first wavelength division device increases the wavelength bandwidth from the first virtual interface to the second virtual interface.

And fifthly, the first wavelength division equipment increases the wavelength bandwidth from the first virtual interface to the second virtual interface according to the fourth instruction.

And sixthly, the first wavelength division equipment returns the adjustment result to the optical controller.

And seventhly, the light controller returns an adjustment result to the H controller.

And step eight, the H controller returns the adjustment result to the server.

In the first embodiment of the present invention, a second specific implementation manner of the step 202 is as follows: if the content of the request instruction comprises the attribute of the newly added bandwidth, sending an adjusting instruction comprising the attribute of the newly added bandwidth to an optical controller, then receiving a label switching path (FA-LSP) between wavelength division devices returned by the optical controller, and sending an adjusting instruction comprising a setup message for indicating to set up a label switching path (gLSP) based on a general multi-protocol label switching protocol for the newly added bandwidth to an IP controller, wherein the setup message carries the number of the FA-LSP, so that the IP controller adjusts the link bandwidth from a first virtual interface to a second virtual interface.

In a second implementation manner, as shown in fig. 6, an interaction flow among the server, the H controller, the optical controller, the IP controller, the first router, and the first wavelength division device connected to the first router includes:

And thirdly, the optical controller inquires optical network resources and finds that the idle bandwidth in the wavelength bandwidth reserved from the first router to the second router is smaller than the newly added bandwidth. And at the moment, the optical controller calculates out a label switching path (FA-LSP) between the wavelength division devices according to the attribute of the newly added bandwidth, and sets a number for the FA-LSP.

Fourthly, the optical controller returns the FA-LSP to the H controller.

And fifthly, the H controller sends an adjusting instruction to the IP controller. The adjusting instruction comprises a setup message used for indicating to set up a label switched path (gLSP) based on a general multi-protocol label switching protocol for the newly added bandwidth, and the setup message carries the number of the FA-LSP.

And sixthly, the IP controller calculates the gLSP according to the received adjusting instruction.

And seventhly, the IP controller sends a first instruction to the first router. The first instruction carries the number of the FA-LSP, and is used to instruct the first router to establish the gLSP, so that the first router establishes the gLSP, and adds the gLSP to a traffic engineering group corresponding to a link from the first virtual interface to the second virtual interface.

And step eight, the first router sends a third request to the first wavelength division equipment through a GMPLS-user side to network side (UNI) interface, wherein the third request is used for requesting to establish the FA-LSP.

And ninthly, the first wavelength division device sends the third request to the optical controller.

And step ten, the optical controller issues a fifth instruction to the first wavelength division equipment. The fifth instruction is used for instructing the first wavelength division device to establish the FA-LSP, so that the first wavelength division device establishes the FA-LSP.

And step ten, the first wavelength division equipment establishes the FA-LSP.

And step ten, the first router establishes the gLSP and adds the gLSP to a traffic engineering group corresponding to a link from the first virtual interface to the second virtual interface. Thereby achieving the purpose of increasing the bandwidth.

And step thirteen, the first router returns the adjustment result to the IP controller.

And step fourteen, the IP controller returns the adjustment result to the H controller.

And fifthly, the H controller returns the adjustment result to the server.

In the first embodiment of the present invention, a third specific implementation manner of the step 202 is as follows: if the content of the request instruction comprises the attribute of reducing the bandwidth, sending an adjusting instruction comprising the attribute of reducing the bandwidth to the IP controller, and enabling the IP and optical controller to adjust the link bandwidth between the first virtual interface and the second virtual interface.

In a third implementation manner, as shown in fig. 7, an interaction flow among the server, the H controller, the optical controller, the IP controller, the first router, and the first wavelength division device connected to the first router includes:

in the first step, the server sends a request instruction to the H controller. The content of the request instruction includes a bandwidth reduction attribute, and the bandwidth reduction attribute specifically includes: reducing the size of the bandwidth, the time delay consistent with the original link and the consistent protection property. Wherein the protection attributes include a working link (w), a protection link (w + p), a recovery link (w + r), and a protection link + recovery link (w + p + r). It should be noted that, when the traffic analysis system monitors that the utilization rate of the link bandwidth between the first virtual interface of the first router and the second virtual interface of the second router is lower than a second preset value, the server sends the request instruction to the H controller.

And secondly, the H controller sends an adjusting instruction to the IP controller. Wherein the adjustment instruction includes a bandwidth reduction attribute.

Thirdly, the IP controller determines, according to the received adjustment instruction, a gLSP that needs to be deleted in the traffic engineering group corresponding to the link between the first virtual interface and the second virtual interface, or a gLSP that needs to adjust the bandwidth in the traffic engineering group corresponding to the link between the first virtual interface and the second virtual interface, and sends a second instruction or a third instruction to the first router, where the second instruction is used to: causing the first router to delete the gLSP that needs to be deleted, the third instruction to: the first router is caused to adjust the bandwidth of the gLSP for which bandwidth adjustment is required. And the IP controller also sends an adjusting instruction comprising the property of reducing the bandwidth to the first router when sending the second instruction or the third instruction to the first router.

And fourthly, the first router deletes the gLSP needing to be deleted or adjusts the bandwidth of the gLSP needing to adjust the bandwidth, returns an adjustment result to the IP controller, and simultaneously sends a first request for requesting to delete the FA-LSP corresponding to the gLSP needing to be deleted or a second request for requesting to adjust the bandwidth of the FA-LSP corresponding to the gLSP needing to adjust the bandwidth to the first wavelength division device.

And fifthly, the IP controller returns the adjustment result to the H controller.

Sixthly, the first wavelength division device sends a first request for requesting to delete the FA-LSP corresponding to the gLSP needing to be deleted or a second request for requesting to adjust the bandwidth of the FA-LSP corresponding to the gLSP needing to adjust the bandwidth to the optical control.

And seventhly, the light control issues a sixth instruction to the first wavelength division equipment according to the first request or issues a seventh instruction to the first wavelength division equipment according to the second request. Wherein the sixth instruction is to: enabling the first wavelength division equipment to delete the FA-LSP corresponding to the gLSP needing to be deleted; the seventh instruction is to: and enabling the first wavelength division equipment to adjust the bandwidth of the FA-LSP corresponding to the gLSP needing to adjust the bandwidth.

And eighthly, deleting the FA-LSP corresponding to the gLSP needing to be deleted by the first wavelength division equipment, or adjusting the bandwidth of the FA-LSP corresponding to the gLSP needing to adjust the bandwidth.

It should be noted that, if the IP controller determines in the third step that the gsps are to be deleted, all of the fourth step, the sixth step, the seventh step, and the eighth step correspond to actions corresponding to deletion, and if the IP controller determines in the third step that the bandwidth of the gsps is to be adjusted, all of the fourth step, the sixth step, the seventh step, and the eighth step correspond to actions corresponding to adjustment of the bandwidth.

And ninthly, the first wavelength division equipment returns the adjustment result to the optical control.

And step ten, the light control returns the adjustment result to the H controller.

And step eleven, returning an adjusting result to the server by the H control.

In the first embodiment of the present invention, when a request instruction for requesting to adjust a link bandwidth from a first virtual interface of a first router to a second virtual interface of a second router is received, an adjustment instruction for instructing to adjust the link bandwidth from the first virtual interface to the second virtual interface is sent to an IP controller and/or an optical controller according to the content of the request instruction, so that the IP controller and/or the optical controller adjusts the link bandwidth from the first virtual interface to the second virtual interface, the problems of tedious network operation and maintenance work and slow internet service provisioning are solved, the network operation and maintenance work is simplified, and the speed of internet service provisioning is increased.

Therefore, in the first embodiment of the present invention, the resource pool formed by dynamically invoking the physical port, that is, the purpose of dynamically adjusting the IP network bandwidth, can be achieved by increasing or decreasing the number of the glsps of the GMPLS-TE Group or adjusting the size of the gLSP bandwidth. Meanwhile, because the router supports double stacks, namely multiprotocol label switching (MPLS) and GMPLS, the configuration of the vlif belongs to the protocol category of MPLS, the adjustment of the bandwidth actually adjusts the bandwidth of the gsps in the GMPLS-TE Group, the adjustment of the GMPLS-TE Group belongs to the category of GMAPLS, and the two are decoupled and dynamically associated. Adjusting the bandwidth does not change the topology and configuration of the IP. Therefore, the bandwidth regulation of the invention only increases and decreases the bandwidth locally according to the needs, and does not change the topological structure and the traffic volume, thereby not affecting the global traffic and the service of other links.

Furthermore, the above method is applicable to at least the following cases:

firstly, an operator periodically expands and contracts the network according to the service planning and the use statistics of the existing network.

Second, if the bandwidth increases sharply to a certain destination due to an unexpected hot spot event, the operator may expand the bandwidth in real time.

And thirdly, setting one or more time periods and one or more node ranges, and setting the limit bandwidth values (i.e. the first preset value and the second preset value) corresponding to the time periods and/or the node ranges.

Second embodiment

As shown in fig. 8, a second embodiment of the present invention provides an adjusting apparatus of a network bandwidth, which is applied to an H controller, the H controller is a Software Defined Network (SDN) controller for controlling an IP controller and an optical controller, the IP controller is an SDN controller for controlling an IP network, and the optical controller is an SDN controller for controlling an optical network, wherein the adjusting apparatus includes:

a first receiving module 801, configured to receive a request instruction for requesting adjustment of a link bandwidth between a first virtual interface of a first router and a second virtual interface of a second router;

a first sending module 802, configured to send, according to the content of the request instruction, an adjustment instruction for instructing to adjust a link bandwidth between a first virtual interface of the first router and a second virtual interface of the second router to the IP controller and/or the optical controller, so that the IP controller and/or the optical controller adjusts the link bandwidth between the first virtual interface and the second virtual interface.

The first receiving module 801 includes:

the first receiving submodule is used for receiving a request instruction sent by a server for adjusting the network bandwidth; the request instruction is generated by the server according to a preset bandwidth adjustment strategy.

Wherein, the device also comprises;

and the second receiving module is used for receiving an adjustment result returned after the IP controller and/or the optical controller adjusts the link bandwidth from the first virtual interface to the second virtual interface, and returning the adjustment result to the server.

The first sending module 802 includes:

and the first sending submodule is used for sending an adjusting instruction comprising the attribute of the newly added bandwidth to the optical controller if the content of the request instruction comprises the attribute of the newly added bandwidth.

Wherein, the device still includes:

the third receiving module is used for receiving a label switching path FA-LSP between the wavelength division devices returned by the optical controller;

and the second sending module is used for sending an adjusting instruction which comprises a establishing message used for indicating the establishment of the label switching path gLSP based on the general multi-protocol label switching protocol for the newly added bandwidth to the IP controller, and the establishing message carries the number of the FA-LSP.

The first sending module 802 includes:

And the second sending submodule is used for sending an adjusting instruction comprising the attribute of the reduced bandwidth to the IP controller if the content of the request instruction comprises the attribute of the reduced bandwidth.

In the second embodiment of the present invention, when a request instruction for requesting to adjust a link bandwidth from a first virtual interface of a first router to a second virtual interface of a second router is received, an adjustment instruction for instructing to adjust the link bandwidth from the first virtual interface to the second virtual interface is sent to an IP controller and/or an optical controller according to the content of the request instruction, so that the IP controller and/or the optical controller adjusts the link bandwidth from the first virtual interface to the second virtual interface, the problems of tedious network operation and maintenance work and slow internet service provisioning are solved, the network operation and maintenance work is simplified, and the speed of internet service provisioning is increased.

It should be noted that the adjusting device for network bandwidth according to the second embodiment of the present invention is a device to which the above adjusting method for network bandwidth applied to the H controller is applied, that is, all embodiments of the above adjusting method for network bandwidth applied to the H controller are applicable to the device, and can achieve the same or similar beneficial effects.

Third embodiment

A third embodiment of the present invention provides an H-controller which is a Software Defined Network (SDN) controller for controlling an IP controller and an optical controller, the IP controller is an SDN controller for controlling an IP network, the optical controller is an SDN controller for controlling an optical network, and the H-controller includes the above-mentioned adjusting device applied to a network bandwidth of the H-controller.

It should be noted that the H controller provided in the third embodiment of the present invention is an H controller including the above-mentioned adjusting device applied to the network bandwidth of the H controller, that is, all embodiments of the above-mentioned adjusting device applied to the network bandwidth of the H controller are applicable to the H controller, and can achieve the same or similar beneficial effects.

Fourth embodiment

As shown in fig. 9, a fourth embodiment of the present invention provides a method for adjusting a network bandwidth, which is applied to an IP controller, where the IP controller is a Software Defined Network (SDN) controller for controlling an IP network, and the method for adjusting the network bandwidth includes:

step 901, receiving an adjustment instruction sent by an H controller for instructing to adjust a link bandwidth between a first virtual interface of a first router and a second virtual interface of a second router.

Step 902, according to the adjustment instruction, adjusting the link bandwidth from the first virtual interface to the second virtual interface.

In a fourth embodiment of the present invention, if the specific implementation manner of the step 902 is: and adjusting the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface according to the adjustment instruction. The adjustment instruction comprises an attribute of reducing the bandwidth, or a setup message used for indicating to set up a label switched path (gLSP) based on a general multi-protocol label switching protocol for the newly added bandwidth, and the setup message carries the number of the label switched path (FA-LSP) between the wavelength division devices.

Specifically, if the adjustment instruction includes the establishment message, the specific implementation manner of the step of adjusting the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface according to the adjustment instruction is as follows: firstly, calculating a gLSP according to an adjusting instruction, and sending a first instruction to a first router; the first instruction carries the number of the FA-LSP, and is used for: enabling the first router to establish a gLSP (generic routing path), and adding the gLSP to a traffic engineering group corresponding to a link from the first virtual interface to the second virtual interface; and then receiving an adjustment result returned by the first router after the gLSP is added to the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface, and returning the received adjustment result to the H controller.

If the adjustment instruction includes the attribute of reducing the bandwidth, a specific implementation manner of the step of adjusting the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface according to the adjustment instruction may be: firstly, according to an adjustment instruction, determining a gLSP (gLSP) to be deleted in a traffic engineering group corresponding to a link from a first virtual interface to a second virtual interface; the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface comprises a plurality of gLSPs; then sending a second instruction and an adjusting instruction comprising the property of reducing the bandwidth to the first router; wherein the second instructions are to: enabling the first router to delete the gLSP needing to be deleted; the adjustment instructions are for: enabling a first router to send a first request for requesting to delete an FA-LSP corresponding to a gLSP to be deleted to an optical controller through first wavelength division equipment connected with the first router; and finally, receiving an adjustment result returned by the first router after deleting the gLSP needing to be deleted, and returning the received adjustment result to the H controller.

In addition, in the fourth embodiment of the present invention, if the adjustment instruction includes an attribute of reducing a bandwidth, a specific implementation manner of the step of adjusting the traffic engineering group corresponding to the link between the first virtual interface and the second virtual interface according to the adjustment instruction may further be: firstly, determining a gLSP (gLSP) of which the bandwidth needs to be adjusted in a traffic engineering group corresponding to a link between a first virtual interface and a second virtual interface according to an adjustment instruction; the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface comprises a plurality of gLSPs; then sending a third instruction and an adjusting instruction comprising the property of reducing the bandwidth to the first router; wherein the third instructions are to: causing the first router to adjust the bandwidth of the gLSP requiring bandwidth adjustment, the adjustment instructions to: enabling the first router to send a second request for requesting adjustment of the bandwidth of the FA-LSP corresponding to the gLSP with the bandwidth needing to be adjusted to the optical controller through first wavelength division equipment connected with the first router; and finally, receiving an adjustment result returned by the first router after the bandwidth of the gLSP needing to adjust the bandwidth is adjusted, and returning the received adjustment result to the H controller.

In the fourth embodiment of the present invention, when receiving an adjustment instruction sent by the H controller for instructing adjustment of a link bandwidth between the first virtual interface and the second virtual interface, the H controller adjusts the link bandwidth between the first virtual interface and the second virtual interface according to the adjustment instruction, thereby solving the problems of cumbersome network operation and maintenance work and slow internet service provisioning, and achieving the effects of simplifying the network operation and maintenance work and further increasing the speed of internet service provisioning.

It should be noted that, the method for adjusting a network bandwidth applied to an IP controller according to the fourth embodiment of the present invention achieves an effect of adjusting a bandwidth by combining with the method for adjusting a network bandwidth applied to an H controller, and therefore, all embodiments of the method for adjusting a network bandwidth applied to an H controller are applicable to the method for adjusting a network bandwidth applied to an IP controller, and can achieve the same or similar beneficial effects.

Fifth embodiment

As shown in fig. 10, a fifth embodiment of the present invention provides an adjusting apparatus for network bandwidth, which is applied to an IP controller, where the IP controller is a Software Defined Network (SDN) controller for controlling an IP network, and the adjusting apparatus includes:

A fourth receiving module 1001, configured to receive an adjustment instruction sent by the H controller, where the adjustment instruction is used to instruct to adjust a link bandwidth between a first virtual interface of the first router and a second virtual interface of the second router;

the first adjusting module 1002 is configured to adjust a link bandwidth between the first virtual interface and the second virtual interface according to the adjustment instruction.

Wherein, the first adjusting module 1002 comprises:

the first adjusting submodule is used for adjusting a traffic engineering group corresponding to a link from the first virtual interface to the second virtual interface according to an adjusting instruction; the adjusting instruction comprises an attribute of reducing the bandwidth, or a setup message used for indicating to set up a label switching path gLSP based on a general multi-protocol label switching protocol for the newly added bandwidth, wherein the setup message carries the number of a label switching path FA-LSP between wavelength division devices.

Wherein, the first adjustment submodule includes:

the first adjusting unit is used for calculating the gLSP according to the adjusting instruction if the adjusting instruction comprises the establishing message and sending a first instruction to the first router; the first instruction carries the number of the FA-LSP, and is used for: enabling the first router to establish a gLSP (generic routing path), and adding the gLSP to a traffic engineering group corresponding to a link from the first virtual interface to the second virtual interface;

And the second adjusting unit is used for receiving an adjusting result returned by the first router after the gLSP is added to the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface, and returning the received adjusting result to the H controller.

Wherein, the first adjustment submodule includes:

a third adjusting unit, configured to determine, according to the adjusting instruction, a gLSP to be deleted in a traffic engineering group corresponding to a link between the first virtual interface and the second virtual interface if the adjusting instruction includes an attribute of reducing a bandwidth; the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface comprises a plurality of gLSPs;

a fourth adjusting unit, configured to send a second instruction to the first router, and an adjusting instruction including an attribute of reducing a bandwidth; wherein the second instructions are to: enabling the first router to delete the gLSP needing to be deleted; the adjustment instructions are for: enabling a first router to send a first request for requesting to delete an FA-LSP corresponding to a gLSP to be deleted to an optical controller through first wavelength division equipment connected with the first router;

and the fifth adjusting unit is used for receiving an adjusting result returned by the first router after deleting the gLSP needing to be deleted, and returning the received adjusting result to the H controller.

Wherein, the first adjustment submodule includes:

a sixth adjusting unit, configured to determine, according to the adjusting instruction, a gLSP that needs to adjust the bandwidth in a traffic engineering group corresponding to a link between the first virtual interface and the second virtual interface if the adjusting instruction includes an attribute of reducing the bandwidth; the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface comprises a plurality of gLSPs;

a seventh adjusting unit, configured to send a third instruction and an adjusting instruction including an attribute of reducing the bandwidth to the first router; wherein the third instructions are to: causing the first router to adjust the bandwidth of the gLSP requiring bandwidth adjustment, the adjustment instructions to: enabling the first router to send a second request for requesting adjustment of the bandwidth of the FA-LSP corresponding to the gLSP with the bandwidth needing to be adjusted to the optical controller through first wavelength division equipment connected with the first router;

and the eighth adjusting unit is configured to receive an adjustment result returned by the first router after adjusting the bandwidth of the gLSP whose bandwidth needs to be adjusted, and return the received adjustment result to the H controller.

In the fifth embodiment of the present invention, when an adjustment instruction for instructing to adjust the bandwidth of the link between the first virtual interface and the second virtual interface is received, the bandwidth of the link between the first virtual interface and the second virtual interface is adjusted according to the adjustment instruction, so that the problems of tedious network operation and maintenance work and slow internet service provisioning are solved, and the effects of simplifying the network operation and maintenance work and further increasing the speed of internet service provisioning are achieved.

It should be noted that the network bandwidth adjusting apparatus provided in the fifth embodiment of the present invention is an apparatus to which the network bandwidth adjusting method applied to the IP controller is applied, that is, all embodiments of the network bandwidth adjusting method applied to the IP controller are applicable to the apparatus, and can achieve the same or similar beneficial effects.

Sixth embodiment

A sixth embodiment of the present invention provides an IP controller, which is a Software Defined Network (SDN) controller for controlling an IP network, and which includes the above-mentioned adjusting device applied to a network bandwidth of the IP controller.

It should be noted that the IP controller provided in the sixth embodiment of the present invention is an IP controller including the above-mentioned adjusting device applied to the network bandwidth of the IP controller, that is, all embodiments of the above-mentioned adjusting device applied to the network bandwidth of the IP controller are applicable to the IP controller, and can achieve the same or similar beneficial effects.

Seventh embodiment

As shown in fig. 11, a seventh embodiment of the present invention provides a method for adjusting a network bandwidth, which is applied to an optical controller, where the optical controller is a Software Defined Network (SDN) controller for controlling an optical network, and the method for adjusting the network bandwidth includes:

Step 1101, receiving an adjusting instruction sent by the H controller for instructing to adjust a link bandwidth between a first virtual interface of the first router to a second virtual interface of the second router.

Step 1102, adjusting a link bandwidth from the first virtual interface to the second virtual interface according to the adjustment instruction.

In a seventh embodiment of the present invention, the adjustment instruction includes an attribute of a newly added bandwidth, and a specific implementation manner of step 1102 is as follows: firstly, inquiring optical network resources according to an adjustment instruction to obtain idle bandwidth in wavelength bandwidth reserved from a first router to a second router; and then adjusting the link bandwidth from the first virtual interface to the second virtual interface according to the attributes of the idle bandwidth and the newly added bandwidth.

Further, the specific implementation manner of the step of adjusting the link bandwidth between the first virtual interface and the second virtual interface according to the attributes of the idle bandwidth and the newly added bandwidth is as follows: if the idle bandwidth is larger than or equal to the newly added bandwidth, a fourth instruction is issued to first wavelength division equipment connected with the first router; the fourth instruction carries the attribute of the newly added bandwidth, and the fourth instruction is used for: causing the first wavelength division device to increase a wavelength bandwidth between the first virtual interface to the second virtual interface; and then receiving an adjustment result returned by the first wavelength division equipment after increasing the wavelength bandwidth from the first virtual interface to the second virtual interface, and returning the received adjustment result to the H controller. If the idle bandwidth is smaller than the newly added bandwidth, calculating a label switching path (FA-LSP) between the wavelength division devices according to the attribute of the newly added bandwidth, and setting a number for the FA-LSP; then the FA-LSP is returned to the H controller, so that the H controller sends an adjusting instruction comprising an establishment message to the IP controller, wherein the establishment message is used for indicating that a label switching path (gLSP) based on a general multi-protocol label switching protocol is established for the newly added bandwidth, and the establishment message carries the number of the FA-LSP; next, receiving a third request sent by the IP controller through the first router and a first wavelength division device connected with the first router; the third request is used for requesting to establish an FA-LSP, and the third request is sent after the IP controller calculates the gLSP according to the received adjusting instruction; finally, according to the third request, a fifth instruction is issued to the first wavelength division equipment; wherein the fifth instructions are for: and enabling the first wavelength division device to establish the FA-LSP.

In a seventh embodiment of the present invention, when the IP controller determines a gLSP that needs to be deleted in a traffic engineering group corresponding to a link between the first virtual interface and the second virtual interface, the method further includes: firstly, receiving a first request sent by an IP controller through a first router and a first wavelength division device connected with the first router; the first request is used for requesting to delete an FA-LSP corresponding to a gLSP which needs to be deleted in a traffic engineering group corresponding to a link from a first virtual interface to a second virtual interface, and the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface comprises a plurality of gLSPs; then issuing a sixth instruction to the first wavelength division equipment according to the first request; wherein the sixth instruction is to: enabling the first wavelength division equipment to delete the FA-LSP corresponding to the gLSP needing to be deleted; and finally, receiving an adjustment result returned by the first wavelength division device after deleting the FA-LSP corresponding to the gLSP needing to be deleted, and returning the received adjustment result to the H controller.

In a seventh embodiment of the present invention, when the IP controller determines that a gLSP requiring bandwidth adjustment in a traffic engineering group corresponding to a link between the first virtual interface and the second virtual interface is present, the method further includes: firstly, receiving a second request sent by an IP controller through a first router and a first wavelength division device connected with the first router; the second request is used for requesting to adjust the bandwidth of an FA-LSP corresponding to a gLSP needing bandwidth adjustment in a traffic engineering group corresponding to a link between a first virtual interface and a second virtual interface, and the traffic engineering group corresponding to the link between the first virtual interface and the second virtual interface comprises a plurality of gLSPs; then issuing a seventh instruction to the first wavelength division equipment according to the second request; wherein the seventh instruction is to: enabling the first wavelength division equipment to adjust the bandwidth of an FA-LSP corresponding to the gLSP needing to adjust the bandwidth; and finally, receiving an adjustment result returned by the first wavelength division equipment after adjusting the bandwidth of the FA-LSP corresponding to the gLSP needing to adjust the bandwidth, and returning the received adjustment result to the H controller.

In the seventh embodiment of the present invention, when an adjustment instruction for instructing to adjust the bandwidth of the link between the first virtual interface and the second virtual interface is received, the bandwidth of the link between the first virtual interface and the second virtual interface is adjusted according to the adjustment instruction, so that the problems of tedious network operation and maintenance work and slow internet service provisioning are solved, and the effects of simplifying the network operation and maintenance work and further increasing the speed of internet service provisioning are achieved.

It should be noted that the method for adjusting a network bandwidth applied to an optical controller according to the seventh embodiment of the present invention achieves an effect of adjusting a bandwidth by combining the method for adjusting a network bandwidth applied to an H controller and the method for adjusting a network bandwidth applied to an IP controller, and therefore, all embodiments of the method for adjusting a network bandwidth applied to an H controller and the method for adjusting a network bandwidth applied to an IP controller are applicable to the method for adjusting a network bandwidth applied to an optical controller, and can achieve the same or similar beneficial effects.

Eighth embodiment

As shown in fig. 12, an eighth embodiment of the present invention provides an adjusting device of a network bandwidth, which is applied to an optical controller, where the optical controller is a Software Defined Network (SDN) controller for controlling an optical network, and the adjusting device includes:

A fifth receiving module 1201, configured to receive an adjustment instruction sent by the H controller, where the adjustment instruction is used to instruct to adjust a link bandwidth between a first virtual interface of the first router and a second virtual interface of the second router;

a second adjusting module 1202, configured to adjust, according to the adjustment instruction, a link bandwidth between the first virtual interface and the second virtual interface.

Wherein, the adjusting instruction includes an attribute of a newly added bandwidth, and the second adjusting module 1202 includes:

the second adjusting submodule is used for inquiring the optical network resources according to the adjusting instruction to obtain the idle bandwidth in the wavelength bandwidth reserved from the first router to the second router;

and the third adjusting submodule is used for adjusting the link bandwidth from the first virtual interface to the second virtual interface according to the attributes of the idle bandwidth and the newly added bandwidth.

Wherein the third adjusting submodule includes:

a ninth adjusting unit, configured to issue a fourth instruction to the first wavelength division device connected to the first router if the idle bandwidth is greater than or equal to the newly added bandwidth; the fourth instruction carries the attribute of the newly added bandwidth, and the fourth instruction is used for: causing the first wavelength division device to increase a wavelength bandwidth between the first virtual interface to the second virtual interface;

And the tenth adjusting unit is used for receiving an adjusting result returned by the first wavelength division device after the wavelength bandwidth between the first virtual interface and the second virtual interface is increased, and returning the received adjusting result to the H controller.

Wherein the third adjusting submodule includes:

an eleventh adjusting unit, configured to calculate, according to an attribute of the newly added bandwidth, a label switched path FA-LSP between the wavelength division devices if the idle bandwidth is smaller than the newly added bandwidth, and set a number for the FA-LSP;

a twelfth adjusting unit, configured to return the FA-LSP to the H controller, so that the H controller sends an adjusting instruction including a setup message to the IP controller, where the setup message is used to instruct to set up a label switched path gsp based on a mpls protocol for the newly added bandwidth, and the setup message carries a serial number of the FA-LSP;

a thirteenth adjusting unit, configured to receive a third request sent by the IP controller through the first router and the first wavelength division device connected to the first router; the third request is used for requesting to establish an FA-LSP, and the third request is sent after the IP controller calculates the gLSP according to the received adjusting instruction;

a fourteenth adjusting unit, configured to issue a fifth instruction to the first wavelength division device according to the third request; wherein the fifth instructions are for: and enabling the first wavelength division device to establish the FA-LSP.

Wherein, the device still includes:

the first module is used for receiving a first request sent by the IP controller through a first router and a first wavelength division device connected with the first router; the first request is used for requesting to delete an FA-LSP corresponding to a gLSP which needs to be deleted in a traffic engineering group corresponding to a link from a first virtual interface to a second virtual interface, and the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface comprises a plurality of gLSPs;

the second module is used for issuing a sixth instruction to the first wavelength division equipment according to the first request; wherein the sixth instruction is to: enabling the first wavelength division equipment to delete the FA-LSP corresponding to the gLSP needing to be deleted;

and the third module is used for receiving an adjustment result returned by the first wavelength division device after deleting the FA-LSP corresponding to the gLSP which needs to be deleted, and returning the received adjustment result to the H controller.

Wherein, the device still includes:

a fourth module, configured to receive a second request sent by the IP controller through the first router and a first wavelength division device connected to the first router; the second request is used for requesting to adjust the bandwidth of an FA-LSP corresponding to a gLSP needing bandwidth adjustment in a traffic engineering group corresponding to a link between a first virtual interface and a second virtual interface, and the traffic engineering group corresponding to the link between the first virtual interface and the second virtual interface comprises a plurality of gLSPs;

The fifth module is used for issuing a seventh instruction to the first wavelength division equipment according to the second request; wherein the seventh instruction is to: enabling the first wavelength division equipment to adjust the bandwidth of an FA-LSP corresponding to the gLSP needing to adjust the bandwidth;

a sixth module, configured to receive an adjustment result returned by the first wavelength division device after adjusting the bandwidth of the FA-LSP corresponding to the gLSP whose bandwidth needs to be adjusted, and return the received adjustment result to the H controller.

In the eighth embodiment of the present invention, when an adjustment instruction for instructing to adjust the bandwidth of the link between the first virtual interface and the second virtual interface is received, the bandwidth of the link between the first virtual interface and the second virtual interface is adjusted according to the adjustment instruction, so that the problems of tedious network operation and maintenance work and slow internet service provisioning are solved, and the effects of simplifying the network operation and maintenance work and further increasing the speed of internet service provisioning are achieved.

It should be noted that the network bandwidth adjusting device provided in the eighth embodiment of the present invention is a device to which the network bandwidth adjusting method applied to the optical controller is applied, that is, all embodiments of the network bandwidth adjusting method applied to the optical controller are applicable to the device, and can achieve the same or similar beneficial effects.

Ninth embodiment

A ninth embodiment of the present invention provides an optical controller, which is a Software Defined Network (SDN) controller for controlling an optical network, and which includes the above-described adjustment device applied to a network bandwidth of the optical controller.

It should be noted that the optical controller provided in the ninth embodiment of the present invention is an optical controller including the above-mentioned adjusting device applied to the network bandwidth of the optical controller, that is, all embodiments of the above-mentioned adjusting device applied to the network bandwidth of the optical controller are applicable to the optical controller, and can achieve the same or similar beneficial effects.

Tenth embodiment

As shown in fig. 13, a tenth embodiment of the present invention provides a system for adjusting a network bandwidth established based on an SDN, including the above-mentioned server 1301, an H controller 1302, an IP controller 1303, and an optical controller 1304. The server 1301 is connected to the traffic analysis system and configured to receive alarm information sent by the traffic analysis system, and the H controller 1302 is connected to the server 1301, the IP controller 1303, and the light controller 1304.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An adjusting method of a network bandwidth, applied to an H controller, wherein the H controller is a Software Defined Network (SDN) controller for controlling an IP controller and an optical controller, the IP controller is an SDN controller for controlling an IP network, and the optical controller is an SDN controller for controlling an optical network, the adjusting method comprising:

and sending an adjusting instruction for instructing to adjust the link bandwidth between the first virtual interface of the first router and the second virtual interface of the second router to an IP controller and/or an optical controller according to the content of the request instruction, so that the IP controller and/or the optical controller adjust the link bandwidth between the first virtual interface of the first router and the second virtual interface of the second router.

2. The method of claim 1, wherein the step of receiving a request instruction for requesting adjustment of a link bandwidth between a first virtual interface of a first router and a second virtual interface of a second router comprises:

Receiving the request instruction sent by a server for adjusting the network bandwidth; the request instruction is generated by the server according to a preset bandwidth adjustment strategy.

3. The method according to claim 2, wherein after the step of sending an adjustment instruction for instructing to adjust a link bandwidth between the first virtual interface of the first router to the second virtual interface of the second router to an IP controller and/or an optical controller according to the content of the request instruction, the method further comprises;

4. The method according to claim 2, wherein the step of sending an adjustment instruction to an IP controller and/or an optical controller for instructing to adjust a link bandwidth between a first virtual interface of the first router to a second virtual interface of the second router according to the content of the request instruction comprises:

5. The method according to claim 4, wherein after the step of sending the adjustment instruction including the attribute of the added bandwidth to the optical controller, the method further comprises:

receiving a label switching path FA-LSP between the wavelength division devices returned by the optical controller;

6. The method according to claim 2, wherein the step of sending an adjustment instruction to an IP controller and/or an optical controller for instructing to adjust a link bandwidth between a first virtual interface of the first router to a second virtual interface of the second router according to the content of the request instruction comprises:

and if the content of the request instruction comprises the attribute of the reduced bandwidth, sending an adjusting instruction comprising the attribute of the reduced bandwidth to the IP controller.

7. An adjusting device of network bandwidth, applied to an H controller, wherein the H controller is a Software Defined Network (SDN) controller for controlling an IP controller and an optical controller, the IP controller is an SDN controller for controlling an IP network, and the optical controller is an SDN controller for controlling an optical network, the adjusting device comprising:

a first sending module, configured to send, according to content of the request instruction, an adjustment instruction for instructing to adjust a link bandwidth between a first virtual interface of the first router and a second virtual interface of the second router to an IP controller and/or an optical controller, so that the IP controller and/or the optical controller adjusts the link bandwidth between the first virtual interface of the first router and the second virtual interface of the second router.

8. An H-controller, characterized in that the H-controller is a software defined network, SDN, controller for controlling an IP-controller and a light-controller, the IP-controller is an SDN controller for controlling an IP-network, the light-controller is an SDN controller for controlling an optical-network, and the H-controller comprises the network bandwidth adjusting device of claim 7.

9. A method for adjusting network bandwidth is applied to an IP controller, wherein the IP controller is a Software Defined Network (SDN) controller for controlling an IP network, and the method for adjusting the network bandwidth comprises the following steps:

and adjusting the link bandwidth from the first virtual interface to the second virtual interface according to the adjusting instruction.

10. The method according to claim 9, wherein the step of adjusting the link bandwidth between the first virtual interface and the second virtual interface according to the adjustment instruction comprises:

adjusting a traffic engineering group corresponding to a link from the first virtual interface to the second virtual interface according to the adjustment instruction; the adjustment instruction comprises an attribute of reducing the bandwidth, or a setup message used for indicating to set up a label switched path gLSP based on a general multi-protocol label switching protocol for the newly added bandwidth, wherein the setup message carries the number of a label switched path FA-LSP between wavelength division devices.

11. The method according to claim 10, wherein the step of adjusting the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface according to the adjustment instruction comprises:

If the adjusting instruction comprises the establishing message, calculating the gLSP according to the adjusting instruction, and sending a first instruction to the first router; wherein the first instruction carries the number of the FA-LSP, and the first instruction is configured to: enabling the first router to establish the gLSP, and adding the gLSP to a traffic engineering group corresponding to a link from the first virtual interface to the second virtual interface;

and receiving an adjustment result returned by the first router after the gLSP is added to a traffic engineering group corresponding to a link from the first virtual interface to the second virtual interface, and returning the received adjustment result to the H controller.

12. The method according to claim 10, wherein the step of adjusting the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface according to the adjustment instruction comprises:

if the adjustment instruction comprises the attribute of reducing the bandwidth, determining a gLSP (generic label switching path) to be deleted in a traffic engineering group corresponding to a link from the first virtual interface to the second virtual interface according to the adjustment instruction; wherein a traffic engineering group corresponding to a link from the first virtual interface to the second virtual interface includes a plurality of gLSPs;

Sending a second instruction to the first router, and an adjustment instruction comprising the property of reducing the bandwidth; wherein the second instructions are to: causing the first router to delete the gLSP that needs to be deleted; the adjustment instructions are to: enabling the first router to send a first request for requesting to delete the FA-LSP corresponding to the gLSP needing to be deleted to an optical controller through a first wavelength division device connected with the first router;

13. The method according to claim 10, wherein the step of adjusting the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface according to the adjustment instruction comprises:

if the adjustment instruction comprises the attribute of reducing the bandwidth, determining a gLSP (generic label switching path) of the bandwidth to be adjusted in a traffic engineering group corresponding to a link from the first virtual interface to the second virtual interface according to the adjustment instruction; wherein a traffic engineering group corresponding to a link from the first virtual interface to the second virtual interface includes a plurality of gLSPs;

Sending a third instruction and an adjustment instruction including the property of the reduced bandwidth to the first router; wherein the third instructions are to: causing the first router to adjust the bandwidth of the bandwidth-required gLSP, wherein the adjustment instructions are configured to: enabling the first router to send a second request for requesting to adjust the bandwidth of the FA-LSP corresponding to the gLSP with the bandwidth needing to be adjusted to an optical controller through a first wavelength division device connected with the first router;

and receiving an adjustment result returned by the first router after adjusting the bandwidth of the gLSP needing to adjust the bandwidth, and returning the received adjustment result to the H controller.

14. An adjusting device of network bandwidth, applied to an IP controller, wherein the IP controller is a Software Defined Network (SDN) controller for controlling an IP network, the adjusting device comprising:

15. An IP controller, characterized in that the IP controller is a software defined network, SDN, controller for controlling an IP network, and the IP controller comprises the network bandwidth adjusting means of claim 14.

16. A method for adjusting network bandwidth is applied to an optical controller, wherein the optical controller is a Software Defined Network (SDN) controller for controlling an optical network, and the method for adjusting the network bandwidth comprises the following steps:

17. The method according to claim 16, wherein the adjustment instruction includes an attribute of a newly added bandwidth, and the step of adjusting the link bandwidth from the first virtual interface to the second virtual interface according to the adjustment instruction comprises:

inquiring optical network resources according to the adjusting instruction to obtain idle bandwidth in wavelength bandwidth reserved from the first router to the second router;

And adjusting the link bandwidth between the first virtual interface and the second virtual interface according to the attributes of the idle bandwidth and the newly added bandwidth.

18. The method of claim 17, wherein the step of adjusting the link bandwidth between the first virtual interface and the second virtual interface according to the attributes of the spare bandwidth and the newly added bandwidth comprises:

if the idle bandwidth is larger than or equal to the newly increased bandwidth, issuing a fourth instruction to a first wavelength division device connected with the first router; wherein the fourth instruction carries an attribute of the newly added bandwidth, and the fourth instruction is configured to: causing the first wavelength division device to increase a wavelength bandwidth between the first virtual interface to the second virtual interface;

and receiving an adjustment result returned by the first wavelength division device after increasing the wavelength bandwidth from the first virtual interface to the second virtual interface, and returning the received adjustment result to the H controller.

19. The method of claim 17, wherein the step of adjusting the link bandwidth between the first virtual interface and the second virtual interface according to the attributes of the spare bandwidth and the newly added bandwidth comprises:

If the idle bandwidth is smaller than the newly added bandwidth, calculating a label switching path (FA-LSP) between wavelength division devices according to the attribute of the newly added bandwidth, and setting a number for the FA-LSP;

returning the FA-LSP to the H controller, so that the H controller sends an adjusting instruction comprising a setup message to an IP controller, wherein the setup message is used for indicating to set up a label switched path gLSP based on a general multi-protocol label switching protocol for a newly added bandwidth, and the setup message carries the number of the FA-LSP;

receiving a third request sent by the IP controller through the first router and a first wavelength division device connected with the first router; the third request is used for requesting to establish the FA-LSP, and the third request is sent by the IP controller after the gLSP is calculated according to the received adjusting instruction;

issuing a fifth instruction to the first wavelength division equipment according to the third request; wherein the fifth instructions are for: causing the first wavelength division device to establish the FA-LSP.

20. The method of claim 16, further comprising:

receiving a first request sent by an IP controller through the first router and a first wavelength division device connected with the first router; the first request is used for requesting to delete an FA-LSP corresponding to a gLSP which needs to be deleted in a traffic engineering group corresponding to a link from the first virtual interface to the second virtual interface, wherein the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface comprises a plurality of gLSPs;

Issuing a sixth instruction to the first wavelength division equipment according to the first request; wherein the sixth instructions are to: enabling the first wavelength division equipment to delete the FA-LSP corresponding to the gLSP needing to be deleted;

21. The method of claim 16, further comprising:

receiving a second request sent by an IP controller through the first router and a first wavelength division device connected with the first router; the second request is used for requesting to adjust the bandwidth of an FA-LSP corresponding to a gLSP whose bandwidth needs to be adjusted in a traffic engineering group corresponding to a link from the first virtual interface to the second virtual interface, where the traffic engineering group corresponding to the link from the first virtual interface to the second virtual interface includes multiple glsps;

issuing a seventh instruction to the first wavelength division equipment according to the second request; wherein the seventh instructions are to: enabling the first wavelength division equipment to adjust the bandwidth of an FA-LSP corresponding to a gLSP needing to adjust the bandwidth;

22. An adjusting device of network bandwidth, applied to an optical controller, wherein the optical controller is a Software Defined Network (SDN) controller for controlling an optical network, the adjusting device comprising:

23. An optical controller, characterized in that the optical controller is a software defined network, SDN, controller for controlling an optical network, and the optical controller comprises the network bandwidth adjusting device of claim 22.