WO2018188487A1

WO2018188487A1 - Hqos resource scheduling method, device and system

Info

Publication number: WO2018188487A1
Application number: PCT/CN2018/080928
Authority: WO
Inventors: 花荣荣
Original assignee: 中兴通讯股份有限公司
Priority date: 2017-04-12
Filing date: 2018-03-28
Publication date: 2018-10-18
Also published as: CN108696456B; CN108696456A

Abstract

Disclosed in the embodiments of the present invention are an HQoS resource scheduling method, device, and system, the method comprising: a BNG/vBNG control plane device acquires in real time the state of resource consumption of a HQoS queue at a single board port reported by a forwarding plane device; when the state of resource consumption of the HQoS queue at the single board port meets a predetermined resource scheduling condition, setting a resource scheduling policy of the forwarding plane device, the resource scheduling policy comprising information of a resource scheduling target forwarding plane device; and, on the basis of the resource scheduling policy, scheduling a user accessing the single board port to the target forwarding plane device. The solution in the embodiments of the present invention implements flexible scheduling of BNG/vBNG forwarding plane HQoS queue resources, improving device resource utilisation.

Description

HQoS resource scheduling method, device and system

Technical field

The present invention relates to the field of communications, and in particular, to a HQoS resource scheduling method, device, and system.

Background technique

With the development of Software Defined Network (SDN) technology and Network Functions Virtualization (NFV) technology, the metropolitan area network is moving toward the traditional network-centric architecture to the data center. The core network architecture evolves; traditional network element devices also evolve from specialization to generalization. Traditional network element equipment mainly solves two decoupling from specialization to generalization: decoupling of control and forwarding, decoupling of software and hardware.

As a traditional broadband access gateway device, BNG (full name Broadband Network Gateway) is very important in user broadband access services and scenarios. The main requirements for BNG equipment on user access are user authentication, access control, traffic scheduling, and so on. With the emergence of various Internet services, the number of sessions supported by BNG devices is increasing, the bandwidth for user access is increasing, and QoS is supported for users (all called Quality of Service)/HQoS (full name is Hierarchical). Quality of Service (Layered QoS) capabilities continue to improve, especially for BNG equipment to provide open and programmable capabilities. Based on these factors, it is very necessary for BNG equipment to implement the two decouplings mentioned above based on the SDN/NFV architecture.

Decoupling of BNG forwarding and control is a trend. After decoupling between forwarding and control, the control plane can manage multiple forwarding planes, perform scheduling of users, traffic, and resources between multiple forwarding planes, and use devices compared with single machines. Both rate and reliability can be greatly improved. Then, in the BNG environment where control and forwarding are separated, how to implement dynamic and flexible scheduling between user HQoS resources in the BNG forwarding plane becomes a technical problem to be solved by the present invention.

Summary of the invention

In view of the above problems, the present invention has been made in order to provide an HQoS resource scheduling method, apparatus and system that solve the above problems.

According to an aspect of the present invention, an HQoS resource scheduling method is provided, which is applied to a control plane device of a broadband network gateway BNG or a virtual vBNG, and the method includes:

Obtain the HQoS queue resource consumption of the board port reported by the forwarding plane device in real time.

Setting a resource scheduling policy of the forwarding plane device when the HQoS queue resource consumption of the board port meets the configured resource scheduling condition; the resource scheduling policy includes the destination forwarding plane device information of the resource scheduling;

The access user of the board port is scheduled to the destination forwarding plane device according to the resource scheduling policy.

According to another aspect of the present invention, a control plane device for BNG or vBNG is provided, including:

The HQoS resource scheduling policy module is configured to obtain the HQoS queue resource consumption of the board port reported by the forwarding plane device in real time;

The policy scheduling module is configured to: when the HQoS queue resource consumption condition of the board port meets the set resource scheduling condition, set a resource scheduling policy of the forwarding plane device; the resource scheduling policy includes a destination forwarding plane of the resource scheduling Device Information;

The protocol processing module is configured to schedule the access user of the board port to the destination forwarding plane device according to the resource scheduling policy.

According to a third aspect of the present invention, an HQoS resource scheduling system is provided, including: a BNG/vBNG control plane device and a plurality of BNG/vBNG forwarding plane devices;

The forwarding plane device includes:

The resource statistics module is configured to report the consumption of the HQoS queue resource of the forwarding board device to the control plane device in real time;

a processing module, configured to respond to a user scheduling operation performed by the control plane device according to the set resource scheduling policy;

The control surface device includes:

The HQoS resource scheduling policy module is configured to obtain the HQoS queue resource consumption status of the board port reported by each forwarding plane device in real time;

a policy scheduling module, configured to: when a HQoS queue resource consumption condition of a board port of a forwarding plane device meets a set resource scheduling condition, set a resource scheduling policy of the forwarding plane device; the resource scheduling policy includes resource scheduling Destination forwarding device information;

The protocol processing module is configured to schedule, according to the resource scheduling policy, the access user of the board port of the forwarding plane device to the destination forwarding plane device.

According to still another embodiment of the present invention, there is also provided a storage medium having stored therein a computer program, wherein the computer program is configured to execute the steps of any one of the method embodiments described above.

According to still another embodiment of the present invention, there is also provided an electronic device comprising a memory and a processor, wherein the memory stores a computer program, the processor being arranged to run the computer program to perform any of the above The steps in the method embodiments.

The beneficial effects of the present invention are as follows:

The method, device and system of the invention realize flexible scheduling of HQoS queue resources on the BNG/vBNG forwarding plane, improve utilization of equipment resources, and the scheduling process is completely adaptive, and has no additional requirements on the surrounding network, and realizes the cost. low.

The above description is only an overview of the technical solutions of the present invention, and the above-described and other objects, features and advantages of the present invention can be more clearly understood. Specific embodiments of the invention are set forth below.

DRAWINGS

Various other advantages and benefits will become apparent to those skilled in the art from a The drawings are only for the purpose of illustrating the preferred embodiments and are not to be construed as limiting. Throughout the drawings, the same reference numerals are used to refer to the same parts. In the drawing:

FIG. 1 is a flowchart of a method for scheduling an HQoS resource according to a first embodiment of the present invention;

2 is a structural block diagram of a control plane device of a BNG or a vBNG according to a second embodiment of the present invention;

3 is a structural block diagram of an HQoS resource scheduling system according to a third embodiment of the present invention;

4 is a network architecture diagram of an HQoS resource scheduling system according to a fourth embodiment of the present invention;

FIG. 5 is a flowchart of a method for scheduling an HQoS resource according to a fourth embodiment of the present invention;

6 is a refinement timing diagram of a method implementation according to a fourth embodiment of the present invention;

FIG. 7 is a structural diagram of a system networking of a method according to a fifth embodiment of the present invention; FIG.

FIG. 8 is a flowchart of a method for scheduling HQoS resources in a forwarding plane pooling scenario according to a fifth embodiment of the present invention;

FIG. 9 is a flowchart of a method for scheduling HQoS resources in a non-pooling scenario of a forwarding plane according to a fifth 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 the embodiments of the present invention have been shown in the drawings, the embodiments Rather, these embodiments are provided so that this disclosure will be more fully understood and the scope of the disclosure will be fully disclosed.

In the first embodiment of the present invention, an HQoS resource scheduling method is provided. The method is applied to a BNG or vBNG control plane device. As shown in FIG. 1, the method includes the following steps:

In step S110, the HQoS queue resource consumption of the board port reported by the forwarding plane device is obtained in real time;

In an optional embodiment of the present invention, the forwarding plane device sends an HQoS queue resource consumption condition to the control plane device through an openflow (open flow) control channel message.

In step S120, when the HQoS queue resource consumption of the board port meets the set resource scheduling condition, the resource scheduling policy of the forwarding plane device is set; the resource scheduling policy includes the destination forwarding plane device information of the resource scheduling;

In an embodiment of the present invention, the HQoS queue resource consumption of the board port meets the set resource scheduling condition, and the HQoS queue resource consumption of the board port reaches a set resource consumption threshold. .

Correspondingly, the HQoS queue resource consumption of the board port does not meet the set resource scheduling conditions, including: the HQoS queue resource consumption of the board port does not reach the set resource consumption threshold.

That is to say, the queue resource of the board is certain. As long as the proportion reaches a certain threshold (percentage), scheduling can be performed.

The resource consumption threshold can be flexibly configured and adjusted according to the actual situation of the network, which is not specifically limited in the embodiment of the present invention.

Optionally, in a specific embodiment of the present invention, setting a resource scheduling policy of the forwarding plane device includes:

(1) acquiring a resource scheduling group of the forwarding plane device configured in advance; the resource scheduling group includes forwarding plane device information that can perform resource scheduling with the forwarding plane device; wherein, the resource scheduling group can The forwarding plane device that performs resource scheduling on the forwarding plane device is a pooled forwarding plane device or a non-pooled forwarding plane device.

(2) According to the set selection strategy, one resource scheduling group is selected in each resource scheduling group, and the destination forwarding plane device is selected in the resource scheduling group.

In the embodiment of the present invention, when the selection policy is set, the forwarding plane device and the current forwarding plane device are preferentially selected as the resource scheduling group of the pooled forwarding plane device, that is, the priority of the resource scheduling group is higher. . For the resource scheduling group with the same priority level, the selection policy can be flexibly set according to requirements, and the present invention does not limit it.

Optionally, when the selected resource scheduling group includes multiple forwarding plane device information, it may be, but is not limited to, determining, according to the HQoS queue resource consumption of the forwarding plane devices, a forwarding plane device that consumes less forwarding planes. device.

In step S130, the access user of the board port is scheduled to the destination forwarding plane device according to the resource scheduling policy.

Optionally, in this embodiment, the scheduling of the access user of the board port to the destination forwarding plane device according to the resource scheduling policy includes: controlling the access user of the board port And determining, according to the resource scheduling policy, the destination forwarding plane device, and feeding back the response packet of the control packet to the destination forwarding plane device. Optionally, the user entry is delivered to the destination forwarding device during the session of the access user.

In an optional embodiment of the present invention, after the resource scheduling policy of the forwarding plane device is set, the method further includes:

The device determines whether the forwarding plane device and the destination forwarding plane device are pooled forwarding plane devices, and if yes, the L2 tunnel configuration information is sent to the forwarding plane device and the destination forwarding plane device. After the L2 tunnel configuration information is delivered, an L2 tunnel can be established between the forwarding plane device and the destination forwarding device. The access user of the forwarding plane device can be scheduled to the forwarding plane device outside the pool. Scheduling of HQoS resources. The L2 tunnel can be, but is not limited to, a VxLAN tunnel.

Optionally, in a specific embodiment of the present invention, when the HQoS queue resource consumption of the board port no longer satisfies the set resource scheduling condition, the resource scheduling of the forwarding plane device that is set is cancelled. Strategy.

In summary, the method in the embodiment of the present invention implements flexible scheduling of HQoS queue resources in the forwarding pool and flexible scheduling of HQoS queue resources between the forwarding pools, improves device resource utilization, and the scheduling process is completely adaptive. There are no additional requirements for the surrounding network, and the implementation cost is low.

In the second embodiment of the present invention, a control plane device of a BNG or a vBNG is provided. As shown in FIG. 2, the control plane device includes:

The HQoS resource scheduling policy module 210 is configured to obtain the HQoS queue resource consumption of the board port reported by the forwarding plane device in real time;

The policy scheduling module 220 is configured to: when the HQoS queue resource consumption condition of the board port meets the set resource scheduling condition, set a resource scheduling policy of the forwarding plane device; the resource scheduling policy includes a destination forwarding of the resource scheduling Surface device information;

The protocol processing module 230 is configured to schedule an access user of the board port to the destination forwarding plane device according to the resource scheduling policy.

Based on the above structural framework and implementation principle, several specific and preferred embodiments under the above structure are given below to refine and optimize the functions of the device of the present invention, so that the implementation of the solution of the present invention is more convenient and accurate. Specifically related to the following:

In the embodiment of the present invention, the HQoS queue resource consumption of the board port meets the set resource scheduling condition, and the HQoS queue resource consumption of the board port reaches the set resource consumption threshold. The resource consumption threshold can be flexibly configured and adjusted according to the actual situation of the network, which is not specifically limited in the embodiment of the present invention.

Optionally, in the embodiment of the present invention, the policy scheduling module 220 is specifically configured to acquire a pre-configured resource scheduling group of the forwarding plane device, where the resource scheduling group includes resource scheduling that can be performed with the forwarding plane device. Forwarding device information; selecting a resource scheduling group in each resource scheduling group according to the selected selection policy, and selecting a destination forwarding plane device in the resource scheduling group.

Optionally, in the embodiment of the present invention, the policy scheduling module 220 is further configured to determine, after setting the resource scheduling policy of the forwarding plane device, whether the forwarding plane device and the destination forwarding plane device are pooled forwarding plane devices, And in the case of no, the L2 tunnel configuration information is sent to the forwarding plane device and the destination forwarding plane device.

Optionally, in the embodiment of the present invention, the protocol processing module 230 is configured to: when receiving the control message of the access user of the board port, determine the destination forwarding device according to the resource scheduling policy, and Forwarding the response packet of the control packet to the destination forwarding device, and delivering the user entry to the destination forwarding device to schedule the access user to the destination forwarding device.

Optionally, in the embodiment of the present invention, the policy scheduling module 220 is further configured to: when the HQoS queue resource consumption of the board port no longer meets the set resource scheduling condition, cancel the set forwarding device The resource scheduling policy.

In summary, the control plane device in the embodiment of the present invention implements flexible scheduling of HQoS queue resources in the forwarding pool and flexible scheduling of HQoS queue resources between the forwarding pools, improves device resource utilization, and the scheduling process is complete. It is adaptive, has no additional requirements for the surrounding network, and has low implementation cost.

In the third embodiment of the present invention, an HQoS resource scheduling system is provided, as shown in FIG. 3, including: a BNG/vBNG control plane device 310 and a plurality of BNG/vBNG forwarding plane devices 320;

The forwarding plane device 320 includes:

The resource statistic module 321 is configured to report the HQoS queue resource consumption of the forwarding plane device board to the control plane device in real time;

The processing module 322 is configured to respond to a user scheduling operation performed by the control plane device according to the set resource scheduling policy;

The control plane device 310 includes:

The HQoS resource scheduling policy module 311 is configured to acquire the HQoS queue resource consumption status of the board port reported by each forwarding plane device in real time;

The policy scheduling module 312 is configured to set a resource scheduling policy of the forwarding plane device when the HQoS queue resource consumption condition of the board port of the forwarding plane device meets the set resource scheduling condition; the resource scheduling policy includes the resource Scheduling destination forwarding plane device information;

The protocol processing module 313 is configured to schedule, according to the resource scheduling policy, the access user of the board port of the forwarding plane device to the destination forwarding plane device.

Optionally, in the embodiment of the present invention, the policy scheduling module 312 is specifically configured to acquire a pre-configured resource scheduling group of the forwarding plane device, where the resource scheduling group includes resource scheduling that can be performed with the forwarding plane device. Forwarding device information; selecting a resource scheduling group in each resource scheduling group according to the selected selection policy, and selecting a destination forwarding plane device in the resource scheduling group.

Optionally, in the embodiment of the present invention, the policy scheduling module 312 is further configured to determine, after setting the resource scheduling policy of the forwarding plane device, whether the forwarding plane device and the destination forwarding plane device are pooled forwarding plane devices, and whether The L2 tunnel configuration information is sent to the forwarding plane device and the destination forwarding plane device.

The processing module 322 is further configured to: when receiving the L2 tunnel configuration information sent by the control plane device, establish an L2 tunnel with the forwarding plane device indicated by the configuration information according to the L2 tunnel configuration information, and determine the current When the forwarding plane device to which the module belongs is a forwarding plane device that needs to perform resource scheduling, the port information of the access port is sent to the destination forwarding plane device through the L2 tunnel.

Optionally, in the embodiment of the present invention, the processing module 322 is specifically configured to: when receiving the control message of the access user, if the L2 tunnel is currently established and the forwarding plane device to which the module belongs is required to perform resource scheduling. The forwarding plane device sends the control packet to the destination forwarding plane device through the L2 tunnel; otherwise, the control packet is directly sent to the control plane device.

The processing module 322 encapsulates the control packet into an L2 tunnel packet, and uses the L2 tunnel to send the encapsulated L2 tunnel packet to the destination forwarding plane device. The inbound port information is encapsulated in the L2 tunnel packet.

Optionally, in the embodiment of the present invention, the protocol processing module 313 is specifically configured to: when receiving the control packet of the forwarding plane device that needs to perform resource scheduling, determine the destination forwarding plane device according to the resource scheduling policy, and The destination forwarding plane device feeds back the response packet of the control packet, and delivers the user entry to the destination forwarding plane device;

The processing module 322 is further configured to: when receiving the response message, send the response message directly to the corresponding access user according to the port information carried in the response message, or send the response message The file is sent to the corresponding forwarding plane device by using the L2 tunnel; and when the user entry sent by the control plane device is received, the user entry is updated.

Optionally, in the embodiment of the present invention, the policy scheduling module 312 is further configured to: when the HQoS queue resource consumption of the board port of the forwarding plane device no longer meets the set resource scheduling condition, the forwarding plane device is cancelled. Resource scheduling strategy.

The system in the embodiment of the present invention implements flexible scheduling of HQoS queue resources on the BNG/vBNG forwarding plane, improves the utilization of equipment resources, and the scheduling process is completely adaptive, and has no additional requirements on the surrounding network, and the implementation cost is low.

In the fourth embodiment of the present invention, an HQoS resource scheduling system is provided. As shown in FIG. 4, the network element and the network module included in the system are: user equipment, BNG/vBNG-C (BNG/vBNG Control Plane) Equipment, multiple BNG/vBNG-U (BNG/vBNG User Plane) devices, AAA devices, and access networks, where:

User equipment, including but not limited to, Residential Gateway (RG), Customer Premise Equipment (CPE), Personal Computer (PC), Voice over Internet Protocol (Voice over Internet Protocol) , referred to as VoIP), Internet Protocol Television (IPTV), Set Top Box (STB), or Integrated Access Device (IAD).

BNG/vBNG-C equipment, including BNG control plane equipment and vBNG control plane equipment, mainly for protocol negotiation, user authentication, access control, and user management for broadband user access.

The BNG/vBNG-U device, including the forwarding plane device of the BNG and the forwarding plane device of the vBNG, is mainly responsible for forwarding and controlling user traffic, and is responsible for executing the traffic policy related to the user.

Based on the foregoing system architecture, with reference to FIG. 5, the implementation process of the HQoS resource scheduling method provided by the embodiment of the present invention is described in detail. Optionally, as shown in FIG. 5, the method in this embodiment mainly includes the following steps:

In the first step, the BNG/vBNG-U reports the consumption of the HQoS queue resources of the board and the port to the BNG/vBNG-C.

In the second step, the BNG/vBNG-C performs the BNG/vBNG-U access user session (session) scheduling judgment according to the preset resource consumption threshold (Pmax, Pmin) policy, and determines the HQoS of the BNG/vBNG-U. When the queue resource consumption exceeds the Pmax value, a scheduling policy is set for the BNG/vBNG-U. Where Pmax is a threshold high value and Pmin is a threshold low value;

In the third step, in the access user discovery phase, the BNG/vBNG-C performs a scheduling policy on the BNG/vBNG-U in which the HQoS queue resource consumption exceeds the Pmax value, so as to follow the BNG/vBNG-U board and port. The accessed user session is scheduled to be accessed by other BNG/vBNG-Us with sufficient resources;

In the fourth step, when the BNG/vBNG-U board and the port queue resource consumption of the scheduling policy are lower than the Pmin value, the BNG/vBNG-C cancels the scheduling policy corresponding to the BNG/vBNG-U.

FIG. 6 is a timing diagram of the above steps, and the specific implementation process of the foregoing steps is described below in conjunction with the timing diagram, optionally:

The first step includes:

101. Both BNG/vBNG-U-1 and BNG/vBNG-U-2 report the HQoS queue resources of the board and port to BNG/vBNG-C.

The second step includes:

201. After receiving the HQoS queue resource condition, the HQoS resource scheduling policy module of the BNG/vBNG-C requests the policy scheduling module to BNG/vBNG-U exceeding the Pmax value according to the preset HQoS resource consumption threshold (Pmax, Pmin). 1 Set the scheduling policy. In the embodiment of the present invention, the scheduled scheduling policy is to schedule the user session subsequently accessed by the BNG/vBNG-U-1 to the BNG/vBNG-U-2 for access.

The third step includes:

Divided into two scenarios, the first scenario is the forwarding surface into a pool:

301A. The user equipment broadcasts PADI (Host Broadcast Initiation Packet) to BNG/vBNG-U-1 and BNG/vBNG-U-2 through OLT (all called Optical Line Terminal)/SW (full name: Switch, switch). /DHCP (full name Dynamic Host Configuration Protocol) controls the message;

The control packet encapsulating module of the 302A, BNG/vBNG-U-1 and BNG/vBNG-U-2, after receiving the broadcast control packet, encapsulates the control packet and encapsulates it through the L2 tunnel. The packet is sent to the BNG/vBNG-C. The L2 tunnel can be a VxLAN tunnel, an L2VPN tunnel, or a GRE (full name Generic Routing Encapsulation) tunnel.

303A, the control packet decapsulation module of the BNG/vBNG-C receives the control packet sent from the BNG/vBNG-U-1 and the BNG/vBNG-U-2 through the L2 tunnel, decapsulates, and decapsulates The subsequent control message is sent to PPPoE (all called Point to Point Protocol over Ethernet)/DHCP protocol processing module.

The PPPoE/DHCP protocol processing module of the 304A, BNG/vBNG-C requests a scheduling policy from the policy scheduling module.

The 305A, BNG/vBNG-C policy scheduling module performs a scheduling policy response according to the previously set scheduling policy.

306A, the PPPoE/DHCP protocol processing module of the BNG/vBNG-C will only respond to the control packet sent by the BNG/vBNG-U-2 according to the scheduling policy.

After receiving the response packet of the control packet, the control packet encapsulating module of the 307A and the BNG/vBNG-U-2 returns a response packet to the user equipment through the OLT/SW.

308A. During the session, the user equipment initiates a PPPoE/IPoE protocol process to the BNG/vBNG-U-2 through the OLT/SW.

After receiving the protocol flow message, the control packet encapsulating module of the BNG/vBNG-U-2 sends the packet to the PPPoE/DHCP protocol processing module of the BNG/vBNG-C.

The PPPoE/DHCP protocol processing module of the BNG/vBNG-C initiates an authentication request to the AAA device, and receives an authentication response fed back by the AAA device.

311A, the PPPoE/DHCP protocol processing module of the BNG/vBNG-C initiates a user table update to the user table management module;

312A. The user list management module of the BNG/vBNG-C delivers the user entry to the BNG/vBNG-U-2 through the openflow, and schedules the access user of the BNG/vBNG-U-1 to the BNG/vBNG-U-2.

Scenario 2 is that the forwarding plane is not pooled:

301B, BNG/vBNG-C uses the policy scheduling module to configure the management module under BNG/vBNG-U-1 and BNG/vBNG-U-2 after setting the scheduling policy for BNG/vBNG-U-1 exceeding the Pmax value. Send a configuration to establish a VxLAN tunnel between BNG/vBNG-U-1 and BNG/vBNG-U-2;

302B. The user equipment sends a PADI/DHCP control message to the BNG/vBNG-U-1 through the OLT/SW.

303B: After receiving the control packet of the user equipment, the control packet encapsulating module of the BNG/vBNG-U-1 is encapsulated and sent to the BNG/vBNG-U-2 through the VxLAN tunnel.

The control packet encapsulating module of the BNG/vBNG-U-2 sends the control packet to the BNG/vBNG-C through the L2 tunnel.

The control packet decapsulation module of the 305B and the BNG/vBNG-C receives the control packet sent from the BNG/vBNG-U-1 and the BNG/vBNG-U-2 through the L2 tunnel, decapsulates, and decapsulates the packet. The subsequent control message is sent to the PPPoE/DHCP protocol processing module.

306B. The PPPoE/DHCP protocol processing module of the BNG/vBNG-C requests a scheduling policy from the policy scheduling module.

307B. The policy scheduling module of the BNG/vBNG-C performs a scheduling policy response according to the previously set scheduling policy.

308B, the PPPoE/DHCP protocol processing module of the BNG/vBNG-C responds to the control packet sent by the BNG/vBNG-U-2 according to the scheduling policy.

309B: After receiving the response packet of the control packet, the control packet encapsulating module of the BNG/vBNG-U-2 sequentially returns a response packet to the user equipment through the BNG/vBNG-U-1 and the OLT/SW.

310B, in the session phase, the user equipment initiates a PPPoE/IPoE protocol process to the BNG/vBNG-U-2 through the OLT/SW and the BNG/vBNG-U-1;

312B: The PPPoE/DHCP protocol processing module of the BNG/vBNG-C initiates an authentication request to the AAA device, and receives an authentication response fed back by the AAA device.

313B, the PPPoE/DHCP protocol processing module of the BNG/vBNG-C initiates a user table update to the user table management module;

314B, BNG/vBNG-C user table management module delivers user entries to BNG/vBNG-U-2 through openflow to schedule BNG/vBNG-U-1 access users to BNG/vBNG-U-2 .

The fourth step includes:

401. The BNG/vBNG-C determines, according to the received HQoS queue resource consumption condition of the BNG/vBNG-U-1, that the HQoS queue resource consumption is lower than the Pmin value, and then cancels the set scheduling policy.

402. The access user of BNG/vBNG-U-1 continues to access from the local.

In the embodiment of the present invention, the control packet encapsulation module and the user table management module in the BNG/vBNG-U are equivalent to the processing module in the third embodiment.

In the fifth embodiment of the present invention, an HQoS resource scheduling method is provided. As shown in FIG. 7, a system architecture diagram is applied to the method according to the embodiment. This embodiment will focus on the HQoS resource flexible scheduling component design. In the figure, S represents a resource scheduling group, and P represents a user access port. S1, S2, and S3 are port P1 resource scheduling policy groups for BNG/vBNG-U-1.

Optionally, in this embodiment, specific embodiments S1, S2, and S3 of S are first defined. S1 and S2 are the forwarding plane pooling scenarios, and S3 is the forwarding plane non-pooling scenario.

The resource scheduling group S1 includes two forwarding plane devices, namely BNG/vBNG-U-1 and BNG/vBNG-U-2, and the syntax is S1 (BNG/vBNG-U-1&P1, BNG/vBNG-U-2&P2). ), P1 and P2 are user access ports, respectively;

The resource scheduling group S2 includes two forwarding plane devices, namely BNG/vBNG-U-1 and BNG/vBNG-U-3, and the syntax is S2 (BNG/vBNG-U-1&P1, BNG/vBNG-U-3&P3). );

The resource scheduling group S3 includes two forwarding plane devices, namely BNG/vBNG-U-1 and BNG/vBNG-U-4, and the syntax is S3 (BNG/vBNG-U-1&P1, BNG/vBNG-U-4). ).

When the BNG/vBNG-C control plane determines that the HQoS queue resources of the BNG/vBNG-U-1P1 port are insufficient, the resource scheduling is performed preferentially between the pooled forwarding planes, that is, the S1 or S2 resource scheduling group policy is preferentially executed, S1 and The S2 scheduling group policy needs to be associated with the user access port, that is, P1, P2, and P3.

Optionally, when the resources in the pooled forwarding plane are insufficient, the BNG/vBNG-C control plane performs resource scheduling between the non-pooled forwarding planes, that is, performs an S3 resource scheduling group policy, so that the access zone is not accessible. Network restrictions to achieve HQoS resource scheduling across sites.

Optionally, the S3 resource scheduling group needs to be encapsulated in the VxLAN tunnel and transmitted to the BNG/vBNG in the VxLAN tunnel due to the cross-layer 2 access network. U-4 is used for accurate binding of user information. BNG/vBNG-U-4 performs Vxlan user access and routes the related user information locally.

As shown in FIG. 8 , a flowchart of an HQoS resource scheduling method in a forwarding plane pooling scenario according to an embodiment of the present invention includes:

Step 1: BNG/vBNG-C sets corresponding HQoS resource thresholds for different BNG/vBNG-Us, and a differentiated threshold policy can be formulated;

Step 2: Each BNG/vBNG-U reports the consumption of the HQoS queue resources of the board and the port to the BNG/vBNG-C in real time;

Step 3: A large number of users dial in to access, so that the HQoS queue resource utilization of a BNG/vBNG-U-1 board and a P1 port exceeds the upper threshold set by BNG/vBNG-C;

Step 4: The BNG/vBNG-C generates a resource scheduling group policy for the P1 port of the BNG/vBNG-U-1, and assumes that the generated resource scheduling group policy is S1.

Step 5: The BNG/vBNG-U-1 board and the P1 port are subsequently connected to the P2 port of the BNG/vBNG-U-2 in the pool for access.

As shown in FIG. 9, a flowchart of an HQoS resource scheduling method in a non-pooling scenario of a forwarding plane according to an embodiment of the present invention includes:

Step 2: The BNG/vBNG-U reports the consumption of the HQoS queue resources of the board and the port to the BNG/vBNG-C in real time.

Step 4: BNG/vBNG-C generates a resource scheduling group policy for the P1 port of the BNG/vBNG-U-1. If the generated resource scheduling group policy is S3, the BNG/vBNG-U-1 and the resource scheduling group S3 are generated. The VNGLAN tunnel configuration is delivered by the BNG/vBNG-U-4.

Step 5: The BNG/vBNG-U-1 and the BNG/vBNG-U-4 establish a VxLAN tunnel by using the delivered tunnel configuration information;

Step 6: The BNG/vBNG-U-1 board and the subsequent access users of the P1 port are scheduled to go online to the BNG/vBNG-U-4 through the VxLAN tunnel, and the access port P1 of the BNG/vBNG-U-1 needs to be connected. The related information (device ID, port ID, and VLAN-ID) is encapsulated in a VxLAN message and passed to the out-of-pool BNG/vBNG-U-4 for accurate binding of user information.

Embodiments of the present invention also provide a storage medium having stored therein a computer program, wherein the computer program is configured to execute the steps of any one of the method embodiments described above.

Optionally, in the embodiment, the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM). A variety of media that can store computer programs, such as hard drives, disks, or optical disks.

Embodiments of the present invention also provide an electronic device comprising a memory and a processor having a computer program stored therein, the processor being arranged to execute a computer program to perform the steps of any of the method embodiments described above.

It is to be understood that the term "comprises", "comprising", or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes those elements. It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, article, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better. Implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Industrial applicability

As described above, the HQoS resource scheduling method, device, and system provided by the embodiments of the present invention have the following beneficial effects: the flexible scheduling of the HQoS queue resources on the BNG/vBNG forwarding plane is implemented, and the utilization of the device resources is improved, and the scheduling process is complete. It is adaptive, has no additional requirements for the surrounding network, and has low implementation cost.

Claims

A hierarchical service quality HQoS resource scheduling method is applied to a control plane device of a broadband network gateway BNG or a virtual vBNG, and the method includes:

Obtain the HQoS queue resource consumption of the board port reported by the forwarding plane device in real time.

Setting a resource scheduling policy of the forwarding plane device when the HQoS queue resource consumption of the board port meets the configured resource scheduling condition; the resource scheduling policy includes the destination forwarding plane device information of the resource scheduling;

The access user of the board port is scheduled to the destination forwarding plane device according to the resource scheduling policy.
The method of claim 1, wherein the HQoS queue resource consumption of the board port meets the set resource scheduling condition, including: the HQoS queue resource consumption of the board port reaches the set resource consumption. Threshold.
The method of claim 1, wherein the setting a resource scheduling policy of the forwarding plane device comprises:

Acquiring a pre-configured resource scheduling group of the forwarding plane device; the resource scheduling group includes forwarding plane device information that can perform resource scheduling with the forwarding plane device;

According to the set selection policy, one resource scheduling group is selected in each resource scheduling group, and the destination forwarding plane device is selected in the resource scheduling group.
The method of claim 1 or 2 or 3, further comprising: after setting the resource scheduling policy of the forwarding plane device,

And determining whether the forwarding plane device and the destination forwarding plane device are pooled forwarding plane devices, and if not, transmitting L2 tunnel configuration information to the forwarding plane device and the destination forwarding plane device.
The method of claim 1, wherein the scheduling the access user of the board port to the destination forwarding plane device according to the resource scheduling policy comprises:

When receiving the control message of the access user of the board port, determining the destination forwarding plane device according to the resource scheduling policy, and feeding back the response packet of the control packet to the destination forwarding plane device, And sending a user entry to the destination forwarding device.
The method of claim 1 or 2 or 3 or 5, further comprising:

When the HQoS queue resource consumption of the board port no longer meets the set resource scheduling condition, the resource scheduling policy of the forwarding plane device is cancelled.
A BNG or vBNG control surface device, including:

The HQoS resource scheduling policy module is configured to obtain the HQoS queue resource consumption of the board port reported by the forwarding plane device in real time;

The policy scheduling module is configured to: when the HQoS queue resource consumption condition of the board port meets the set resource scheduling condition, set a resource scheduling policy of the forwarding plane device; the resource scheduling policy includes a destination forwarding plane of the resource scheduling Device Information;

The protocol processing module is configured to schedule the access user of the board port to the destination forwarding plane device according to the resource scheduling policy.
The control plane device of claim 7, wherein the HQoS queue resource consumption of the board port meets the set resource scheduling condition, including: the HQoS queue resource consumption of the board port reaches a set value. Resource consumption threshold.
The control plane device according to claim 7, wherein the policy scheduling module is specifically configured to acquire a pre-configured resource scheduling group of the forwarding plane device; and the resource scheduling group includes a forwarding plane device The forwarding plane device information of the resource scheduling is performed; according to the set selection policy, one resource scheduling group is selected in each resource scheduling group, and the destination forwarding plane device is selected in the resource scheduling group.
The control plane device according to claim 7 or 8 or 9, wherein the policy scheduling module is further configured to determine the forwarding plane device and the destination forwarding plane device after setting the resource scheduling policy of the forwarding plane device Whether it is a pooled forwarding plane device, and if not, the L2 tunnel configuration information is sent to the forwarding plane device and the destination forwarding plane device.
The control plane device according to claim 7, wherein the protocol processing module is configured to determine a destination forwarding according to the resource scheduling policy when receiving a control message of an access user of the board port. The device forwards the response packet of the control packet to the destination forwarding device, and delivers the user entry to the destination forwarding device.
The control plane device according to claim 7 or 8 or 9 or 11, wherein the policy scheduling module is further configured to: when the HQoS queue resource consumption of the board port no longer satisfies the set resource scheduling condition And canceling the set resource scheduling policy of the forwarding plane device.
A hierarchical service quality HQoS resource scheduling system, comprising: a BNG/vBNG control plane device and a plurality of BNG/vBNG forwarding plane devices;

The forwarding plane device includes:

The resource statistics module is configured to report the consumption of the HQoS queue resource of the forwarding plane device to the control plane device in real time;

a processing module, configured to respond to a user scheduling operation performed by the control plane device according to the set resource scheduling policy;

The control surface device includes:

The HQoS resource scheduling policy module is configured to obtain the HQoS queue resource consumption status of the board port reported by each forwarding plane device in real time;

a policy scheduling module, configured to: when a HQoS queue resource consumption condition of a board port of a forwarding plane device meets a set resource scheduling condition, set a resource scheduling policy of the forwarding plane device; the resource scheduling policy includes resource scheduling Destination forwarding device information;

The protocol processing module is configured to schedule, according to the resource scheduling policy, the access user of the board port of the forwarding plane device to the destination forwarding plane device.
The system of claim 13, wherein the HQoS queue resource consumption of the board port meets the set resource scheduling condition, including: the HQoS queue resource consumption of the board port reaches the set resource consumption. Threshold.
The system of claim 13, wherein the policy scheduling module is configured to acquire a pre-configured resource scheduling group of the forwarding plane device; and the resource scheduling group includes a resource that can be used with the forwarding plane device. The forwarding forwarding device information is scheduled; according to the selected selection policy, one resource scheduling group is selected in each resource scheduling group, and the destination forwarding plane device is selected in the resource scheduling group.
The system of claim 13 or 14 or 15, wherein the policy scheduling module is further configured to determine whether the forwarding plane device and the destination forwarding plane device are pooled forwarding after setting a resource scheduling policy of the forwarding plane device. And, in the case of the device, the L2 tunnel configuration information is sent to the forwarding plane device and the destination forwarding plane device;

The processing module is further configured to: when receiving the L2 tunnel configuration information sent by the control plane device, establish an L2 tunnel with the forwarding plane device indicated by the configuration information according to the L2 tunnel configuration information, and determine When the forwarding plane device to which the module belongs is a forwarding plane device that needs to perform resource scheduling, the port information of the access port is sent to the destination forwarding plane device through the L2 tunnel.
The system of claim 16 wherein

The processing module is specifically configured to: when receiving the control message of the access user, if the L2 tunnel is currently established and the forwarding plane device to which the module belongs is a forwarding plane device that needs to perform resource scheduling, the control is performed. The packet is sent to the destination forwarding plane device through the L2 tunnel; otherwise, the control packet is directly sent to the control plane device.
The system of claim 17, wherein the processing module is configured to encapsulate the control packet into an L2 tunnel packet, and use the L2 tunnel to send the encapsulated L2 tunnel packet to the destination forwarding. The device is encapsulated in the L2 tunnel packet during the encapsulation.
The system of claim 17, wherein the protocol processing module is configured to determine a destination forwarding device according to the resource scheduling policy when receiving a control packet of a forwarding plane device that needs to perform resource scheduling, And sending the response packet of the control packet to the destination forwarding device, and sending the user entry to the destination forwarding device;

The processing module is further configured to: when receiving the response packet, send the response packet directly to the corresponding access user according to the port information carried in the response packet, or send the response The packet is sent to the corresponding forwarding plane device through the L2 tunnel; and when the user entry sent by the control plane device is received, the user entry is updated.
The system according to any one of claims 13 to 15, 17 to 19, wherein the policy scheduling module is further configured to: when the HQoS queue resource consumption of the board port of the forwarding plane device no longer satisfies the set resource When the condition is scheduled, the resource scheduling policy of the forwarding plane device is canceled.
A storage medium having stored therein a computer program, wherein the computer program is arranged to execute the method of any one of claims 1 to 6 at runtime.
An electronic device comprising a memory and a processor, wherein the memory stores a computer program, the processor being arranged to execute the computer program to perform the method of any one of claims 1 to 6.