WO2014059838A1 - 服务质量策略的调整方法及设备 - Google Patents

服务质量策略的调整方法及设备 Download PDF

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Publication number
WO2014059838A1
WO2014059838A1 PCT/CN2013/083023 CN2013083023W WO2014059838A1 WO 2014059838 A1 WO2014059838 A1 WO 2014059838A1 CN 2013083023 W CN2013083023 W CN 2013083023W WO 2014059838 A1 WO2014059838 A1 WO 2014059838A1
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WIPO (PCT)
Prior art keywords
network
user
component
acceleration request
service
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PCT/CN2013/083023
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English (en)
French (fr)
Inventor
黄孙亮
陈建业
范成法
李宏飚
Original Assignee
中兴通讯股份有限公司
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Publication of WO2014059838A1 publication Critical patent/WO2014059838A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066Session management
    • H04L65/1069Session establishment or de-establishment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/20Traffic policing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/80Responding to QoS
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/321Interlayer communication protocols or service data unit [SDU] definitions; Interfaces between layers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/24Traffic characterised by specific attributes, e.g. priority or QoS

Definitions

  • the present invention relates to the field of communications, and in particular to a method and device for adjusting a quality of service policy.
  • BACKGROUND OF THE INVENTION Internet services are developing rapidly, especially the development of video services, which requires service providers to require a large number of Content Delivery Network (CDN) services to improve the service quality of Internet services;
  • CDN Content Delivery Network
  • the current CDN system cannot sense and control the bandwidth and quality of the network, it cannot truly guarantee the user experience of the service.
  • the service quality assurance of the service needs to be guaranteed from both the content and the network. It is necessary for the CDN and the network device to guarantee the application of the user at the same time.
  • the CDN can only provide protection at the application level, and the network can only provide the bandwidth and quality assurance of the network layer. Only the CDN device and the network device can be fused to implement the protection from both content and network, thereby improving the user experience.
  • the network component accelerates the user by the network component, and the content is accelerated by the CDN component to the user; and when the specific acceleration policy is implemented, a certain control mechanism is needed to be flexible. Appropriate control and adjustment to avoid excessive use of network resources, to avoid impact on other services, to avoid impact on network stability and availability, and to improve the acceleration of user applications.
  • Embodiments of the present invention provide a method and an apparatus for adjusting a quality of service policy to solve at least one of the foregoing problems.
  • a method for adjusting a quality of service policy including: a CDN component and a network component negotiate a quality of service policy, wherein the CDN component provides an application layer CDN service, and the network component provides a network layer Function, the quality of service policy includes a speed control policy and/or an application layer of the network layer Speed control strategy; the CDN component and/or the network component adjusts the quality of service policy according to a negotiation result.
  • the CDN component and the network component negotiate the quality of service policy, including: the network component detecting network status and/or network service status of each user in real time or periodically, wherein the network status includes usage of network resources, The network service status includes a network usage status and an application execution status of the user; the network component requests the CDN component to adjust a speed control of the application layer in the quality of service policy according to the detection result of the real-time or periodic detection.
  • the network component detects the network status and/or the service status of the user in real time or periodically, including at least one of the following: the network component detects a bandwidth utilization rate of the port; and the network component detects a download rate of each user; The network component detects the traffic used by the respective users this time.
  • the network component requests the CDN component to adjust a content policy in the quality of service policy according to the detection result of the real-time or periodic detection, including at least one of the following: the network component requests that the bandwidth utilization rate is reached.
  • the user of the current content acceleration under the port of the first threshold performs content deceleration; the network component requests content acceleration for the user whose download rate is less than the second threshold, and accelerates the current content whose download rate is greater than the third threshold.
  • the user performs content deceleration, wherein the second threshold is less than the third threshold; and the network component requests content deceleration for a user whose current content is greater than a fourth threshold.
  • the CDN component negotiates a quality of service policy with the network component, including: the CDN component sending a network acceleration request to the network component, wherein the network acceleration request is used to request acceleration of a network layer; a network acceleration request; the network component detects a network status of the port where the user is located corresponding to the network acceleration request, and/or a network service status of the user corresponding to the network acceleration request, where the network acceleration request
  • the corresponding network status of the user includes a usage of the network resource
  • the network service status of the user corresponding to the network acceleration request includes a network usage status and an application of the user corresponding to the network acceleration request.
  • the network component adjusts the speed control policy of the network layer in the quality of service policy according to the detection result of the user corresponding to the network acceleration request.
  • the network component detects that the network state of the port where the user is located corresponding to the network acceleration request and/or the service state of the user corresponding to the network acceleration request includes at least one of the following: And the network component detects the bandwidth occupied by the high-level application of the port where the user is located corresponding to the network acceleration request; the network component detects the network And the network component detects the traffic used by the user corresponding to the network acceleration request.
  • the adjusting, by the network component, the network policy in the quality of service policy according to the detection result of the user corresponding to the network acceleration request including at least one of the following: if the network acceleration request corresponds to the port of the user The bandwidth utilization is less than the fifth threshold, the network component accepts the network acceleration request, and performs acceleration of the network layer; if the network acceleration request corresponding to the port of the user is occupied by a high-level application, the bandwidth occupied by the network is less than the sixth a threshold, the network component accepts the network acceleration request, and performs acceleration of the network layer; if the download rate of the user corresponding to the network acceleration request is less than a seventh threshold, the network component accepts the network acceleration request, And performing acceleration of the network layer; if the traffic used by the user corresponding to the network acceleration request is less than an eighth threshold, the network component accepts the network acceleration request, and performs network layer acceleration.
  • an apparatus for adjusting a quality of service policy including: a CDN component and a network component, wherein the CDN component is configured to provide an application layer CDN service, and negotiate a service with the network component a quality policy, and adjusting the quality of service policy according to the negotiation result; the network component is configured to provide a network layer function, negotiate the quality of service policy with the CDN component, and adjust the quality of service policy according to the negotiation result
  • the service quality policy includes: a speed control policy of the network layer and/or a speed control policy of the application layer.
  • the network component comprises: a first detecting module, configured to detect a network state and/or a network service state of each user in real time or periodically, wherein the network state includes usage of network resources, and the network service state
  • the application module includes: the requesting module, configured to request the CDN component to adjust a speed control policy of the application layer in the quality of service policy according to the detection result of the first detecting module;
  • the CDN component includes: a first adjustment module configured to adjust a speed control policy of the application layer in the quality of service policy.
  • the first detecting module includes at least one of the following: a first detecting unit configured to detect a bandwidth utilization rate of the port; a second detecting unit configured to detect a download rate of each user; and a third detecting unit, It is set to detect the traffic used by the respective users this time.
  • the requesting module includes at least one of the following: a first requesting unit, configured to request content deceleration for a user that accelerates current content under a port whose bandwidth utilization reaches a first threshold; second request unit, setting And performing content acceleration on the user that is requested to use the user whose download rate is less than the second threshold, and decelerating the user that is accelerated by the current content whose download rate is greater than the third threshold, where the second threshold is smaller than the third threshold;
  • the third requesting unit is configured to request content deceleration for the user who accelerates the current content whose traffic is greater than the fourth threshold.
  • the CDN component further includes: a sending module, configured to send a network acceleration request to the network component, where the network acceleration request is used to request acceleration of a network layer; the network component further includes: a receiving module, The second detecting module is configured to detect a network state of the port where the user is located corresponding to the network acceleration request and/or a network service state of the user corresponding to the network acceleration request, The network status of the user corresponding to the network acceleration request includes a usage of a network resource, and the network service status of the user corresponding to the network acceleration request includes the network acceleration request.
  • a sending module configured to send a network acceleration request to the network component, where the network acceleration request is used to request acceleration of a network layer
  • the network component further includes: a receiving module,
  • the second detecting module is configured to detect a network state of the port where the user is located corresponding to the network acceleration request and/or a network service state of the user corresponding to the network acceleration request,
  • the network status of the user corresponding to the network acceleration request
  • the second adjustment module is configured to adjust the speed control policy of the network layer in the quality of service policy according to the detection result of the second detection module.
  • the second detecting module includes at least one of the following: a fourth detecting unit configured to detect a bandwidth utilization rate of a port where the user is located corresponding to the network acceleration request; and a fifth detecting unit configured to detect the The network acceleration request corresponds to the bandwidth occupied by the high-level application of the port where the user is located; the sixth detecting unit is configured to detect the download rate of the user corresponding to the network acceleration request; and the seventh detecting unit is configured to detect the The network acceleration request corresponds to the traffic used by the user this time.
  • the second adjustment module includes at least one of the following: a first adjustment unit, configured to accept, when the bandwidth utilization of the port where the user is located corresponding to the network acceleration request is less than a fifth threshold The network acceleration request and acceleration of the network layer; the second adjusting unit is configured to accept the network acceleration if the bandwidth occupied by the high-level application of the port where the user is located corresponding to the network acceleration request is less than a sixth threshold Requesting and performing acceleration of the network layer; the third adjusting unit is configured to accept the network acceleration request and accelerate the network layer if the download rate of the user corresponding to the network acceleration request is less than a seventh threshold; The fourth adjusting unit is configured to accept the network acceleration request and perform network layer acceleration if the traffic used by the user corresponding to the network acceleration request is less than an eighth threshold.
  • a first adjustment unit configured to accept, when the bandwidth utilization of the port where the user is located corresponding to the network acceleration request is less than a fifth threshold The network acceleration request and acceleration of the network layer; the second adjusting unit is configured to accept the
  • the CDN component negotiates a quality of service policy with the network component, wherein the CDN component provides an application layer CDN service, and the network component provides a network layer function, and the service quality policy includes a network layer speed control policy and/or an application layer speed.
  • Control strategy; CDN components and/or network components adjust the service quality policy according to the negotiation result, and at the same time, the application layer and the network layer implement the service quality assurance of the service, and improve the user experience of the service.
  • FIG. 1 is a block diagram showing the structure of a preferred first detecting module according to an embodiment of the present invention
  • FIG. 4 is a block diagram of a preferred requesting module according to an embodiment of the present invention
  • 5 is a structural block diagram of a preferred apparatus for adjusting a quality of service policy according to an embodiment of the present invention.
  • FIG. 6 is a block diagram showing a structure of a preferred second detecting module according to an embodiment of the present invention.
  • FIG. 7 is a block diagram of a second detecting module according to an embodiment of the present invention.
  • FIG. 8 is a flowchart of a method for adjusting a quality of service policy according to a first embodiment of the present invention;
  • FIG. 9 is a CDN component according to a third embodiment of the present invention.
  • FIG. 11 is a flowchart of a method for controlling a user network acceleration policy according to Embodiment 3 of the present invention;
  • FIG. 12 is a flowchart of a method for adjusting a user content acceleration policy according to Embodiment 3 of the present invention; .
  • an apparatus for adjusting a quality of service policy is provided to simultaneously implement quality of service guarantee for a service at an application layer and a network layer.
  • 1 is a structural block diagram of an apparatus for adjusting a quality of service policy according to the first embodiment of the present invention. As shown in FIG. 1, the apparatus mainly includes: a CDN component 1 and a network component 2, wherein the CDN component 1 is configured to provide an application layer.
  • the CDN service negotiates a quality of service policy with the network component 2, and adjusts the quality of service policy according to the negotiation result;
  • the network component 2 is configured to provide a network layer function, negotiate a quality of service policy with the CDN component 1, and adjust the quality of service policy according to the negotiation result;
  • the service quality policy includes: a speed control strategy at the network layer and/or a speed control strategy at the application layer.
  • the CDN component 1 negotiates the quality of service policy with the network layer component 2, and adjusts the quality of service policy by the CDN component 1 and/or the network component 2 to implement the speed control strategy and/or the application layer of the network layer.
  • the network component 2 can detect the usage of the network resource, the network usage state of the user, and the application execution status in real time or periodically, and request the CDN component 1 to adjust the speed of the application layer according to the detection result.
  • the control strategy is adjusted by the CDN component 1 on the application layer at the application level.
  • 2 is a structural block diagram of a preferred apparatus for adjusting a quality of service policy according to an embodiment of the present invention.
  • the network component 2 may include: a first detecting module 20 configured to detect in real time or periodically.
  • the CDN component 1 is configured to adjust the speed control policy of the application layer in the QoS policy according to the detection result of the first detection module 20; the CDN component 1 may include: a first adjustment module 10, configured to adjust an application layer in the QoS policy Speed control strategy.
  • 3 is a structural block diagram of a preferred first detecting module according to an embodiment of the present invention. As shown in FIG.
  • the first detecting module 20 may include at least one of the following: a first detecting unit 202 configured to detect bandwidth utilization of a port
  • the second detecting unit 204 is configured to detect a download rate of each user; and the third detecting unit 206 is configured to detect the traffic used by each user this time.
  • 4 is a structural block diagram of a preferred request module according to an embodiment of the present invention, as shown in FIG. 4, a request module
  • a first requesting unit 222 configured to request content deceleration for a user who accelerates current content under a port whose bandwidth utilization reaches a first threshold
  • a second requesting unit 224 configured to request a download rate
  • the user that is less than the second threshold performs content acceleration, and the content is accelerated by the user whose current content is faster than the third threshold, wherein the second threshold is smaller than the third threshold
  • the third request unit 226 is configured to request the current The user using the current content acceleration that is greater than the fourth threshold accelerates the content.
  • the CDN component 1 can request the network component 2 to perform network acceleration, and the network component 2 can determine whether the network component 2 is based on the usage of the network resource, the network usage state of the user, and the application execution status.
  • the user performs network acceleration and adjusts the user's speed at the network layer.
  • 5 is a structural block diagram 2 of a preferred apparatus for adjusting a quality of service policy according to an embodiment of the present invention.
  • the CDN component 1 may further include: a sending module 12 configured to send to the network component 2 a network acceleration request, where the network acceleration request is used to request acceleration of the network layer; the network component 2 further includes:
  • the receiving module 24 is configured to receive a network acceleration request.
  • the second detecting module 26 is coupled to the receiving module 24, and configured to detect a network state of a port where the user is located corresponding to the network acceleration request and/or a network service of the user corresponding to the network acceleration request.
  • the network state of the user corresponding to the network acceleration request includes the usage of the network resource, and the network service status of the user corresponding to the network acceleration request includes the network usage status and application execution status of the user corresponding to the network acceleration request; 28, coupled to the second detecting module 26, configured to adjust a speed control policy of the network layer in the quality of service policy according to the detection result of the second detecting module 26.
  • FIG. 6 is a structural block diagram of a preferred second detecting module according to an embodiment of the present invention. As shown in FIG.
  • the second detecting module 26 may include at least one of the following: a fourth detecting unit 262 configured to detect a network acceleration request corresponding to FIG. The bandwidth of the port where the user is located; the fifth detecting unit 264 is configured to detect the bandwidth occupied by the high-level application of the port where the user corresponding to the network acceleration request is located; the sixth detecting unit 266 is configured to detect the user corresponding to the network acceleration request The seventh detection unit 268 is configured to detect the traffic used by the user corresponding to the network acceleration request.
  • FIG. 7 is a structural block diagram of a preferred second adjustment module according to an embodiment of the present invention. As shown in FIG. 7, the second adjustment module 28 may include at least one of the following: a first adjustment unit 282, configured to correspond to a network acceleration request.
  • the second adjustment unit 284 is configured to be occupied by the high-level application of the port where the user corresponding to the network acceleration request is located.
  • the third adjusting unit 286 is configured to accept the network acceleration request if the download rate of the user corresponding to the network acceleration request is less than the seventh threshold. And performing acceleration of the network layer.
  • the fourth adjusting unit 288 is configured to accept the network acceleration request and accelerate the network layer if the traffic used by the user corresponding to the network acceleration request is less than the eighth threshold.
  • FIG. 8 is a flowchart of a method for adjusting a quality of service policy according to the first embodiment of the present invention. As shown in FIG.
  • the method mainly includes steps S802 to S804: Step S802, the CDN component negotiates a quality of service policy with a network component, where The CDN component provides an application layer CDN service, the network component provides a network layer function, and the quality of service policy includes a network layer speed control policy and/or an application layer speed control policy; Step S804, the CDN component and/or the network component are adjusted according to the negotiation result Service quality strategy.
  • the CDN component negotiates a quality of service policy with the network layer component, and the service quality policy is adjusted by the CDN component and/or the network component, and the speed control policy of the network layer and/or the speed control strategy of the application layer are implemented.
  • the network component may implement or periodically detect the usage of the network resource, the network usage status of the user, and the execution status of the application, and request the CDN component to adjust the speed control policy of the application layer according to the detection result. , the user's speed is adjusted at the application layer by the CDN component. This embodiment will be described in detail below.
  • the network component When the CDN component negotiates the quality of service policy with the network component, the network component detects the network state and/or the network service state of each user in real time or periodically.
  • the network state includes the usage of the network resource, and the network service state includes the network state and application of the user.
  • the network component requests the CDN component to adjust the speed control policy of the application layer in the quality of service policy according to the detection result of real-time or periodic detection.
  • the network component detects the network status and/or the service status of the user in real time or periodically, and includes at least one of the following: the network component detects the bandwidth utilization of the port; and the network component detects the download of each user. Rate;
  • the network component detects the traffic used by each user this time.
  • the network component requests the CDN component to adjust the content policy in the quality of service policy according to the detection result, at least one of the following: the network component requests the user to accelerate the content acceleration of the current content under the port whose bandwidth utilization reaches the first threshold; The network component requests content acceleration for the user whose download rate is less than the second threshold, and decelerates the content acceleration for the user whose download rate is greater than the third threshold, wherein the second threshold is less than the third threshold; the network component requests the current The user using the current content acceleration that is greater than the fourth threshold accelerates the content.
  • the quality of service policy can be adjusted based on network bandwidth utilization. For example, the network component can monitor the bandwidth utilization of the port in real time.
  • the user's speed control policy at the application layer is adjusted to reduce the bandwidth utilization of the port.
  • the CDN component receives the content deceleration request, performs deceleration of the content of the user, and feeds back the execution result to the network component.
  • the quality of service policy may also be adjusted based on the download rate of the application-accelerated user. For example, the network component monitors the download rate of the user that is currently applying acceleration in real time.
  • the download rate has reached B bit/s
  • the content deceleration request is triggered, and the network component sends a content deceleration request to the CDN component for the user who satisfies the condition.
  • the CDN component After receiving the content deceleration request for the above user, the CDN component performs the content reduction for the user. Speed; and feedback the execution results to the network component.
  • the download rate is lower than C bit/s
  • the content acceleration request is triggered, and the network component sends a content acceleration request for the user to the CDN component; after receiving the content acceleration request for the user, the CDN component executes the content of the user Accelerate; and feed back the results to the network component.
  • the CDN component may request network acceleration from the network component, and the network component may determine whether to perform network on the user according to factors such as usage of the network resource, network usage status of the user, and application execution status. Accelerate, adjust the speed of the user at the network layer. This embodiment will be described in detail below.
  • the CDN component may send a network acceleration request to the network component, wherein the network acceleration request is used to request acceleration of the network layer; the network component receives the network acceleration request; and the network component detects the network acceleration request corresponding to The network status of the user's port and/or the network service status of the user corresponding to the network acceleration request.
  • the network status of the user corresponding to the network acceleration request includes the usage of the network resource, and the network service status of the user corresponding to the network acceleration request.
  • the network usage status and the application execution status of the user corresponding to the network acceleration request are included; the network component adjusts the network layer speed control policy in the service quality policy according to the detection result of the user corresponding to the network acceleration request.
  • the network component detects that the network state of the port where the user is located corresponding to the network acceleration request and/or the network service state of the user corresponding to the network acceleration request includes at least one of the following: The bandwidth utilization of the port where the user corresponding to the request is accelerated; the network component detects the bandwidth occupied by the high-level application of the port corresponding to the user corresponding to the network acceleration request; the network component detects the download rate of the user corresponding to the network acceleration request; and the network component detects the network acceleration request The traffic used by the corresponding user this time.
  • the network component adjusts the network policy in the service quality policy according to the detection result of the user corresponding to the network acceleration request, and includes at least one of the following: if the bandwidth utilization of the port of the user corresponding to the network acceleration request is less than a fifth threshold, the network component Accepting the network acceleration request and accelerating the network layer; if the bandwidth occupied by the high-level application of the port corresponding to the user corresponding to the network acceleration request is less than the sixth threshold, the network component accepts the network acceleration request and performs network layer acceleration; The downloading rate corresponding to the user is less than the seventh threshold, the network component accepts the network acceleration request, and accelerates the network layer; if the traffic corresponding to the network acceleration request is less than the eighth threshold, the network component accepts the network acceleration.
  • the adjustment of the speed control policy of the user at the network layer may be based on the proportion of the high-level application bandwidth of the network, the bandwidth usage of the port where the user is located, the download rate of the current network connection of the user, and the current network connection of the user.
  • Acceptance control of user network acceleration policies such as traffic usage.
  • the CDN component initiates a network acceleration request for the user to the network component. After receiving the network acceleration request of the user, the network component can query the user status. If the query fails, the network acceleration request is discarded; if the network status of the user is correctly queried, You can query the bandwidth occupied by the high-level application of the port where the user is located.
  • the high-level application bandwidth accounts for A%; if the high-level application occupies less than the total bandwidth of the port, it can receive the network acceleration request and execute the user's network acceleration request.
  • the bandwidth utilization of the port where the user is located may also be queried. If the bandwidth utilization reaches B%, the network acceleration request of the user is rejected, and the CDN component is rejected.
  • the network acceleration failure message is returned, and the reason for the failure is: the port bandwidth utilization reaches B% ; if the port bandwidth utilization is lower than B%, the network acceleration request can be received, and the user's network acceleration request is executed.
  • the download rate of the current network connection of the user may also be queried. If the C bit/s is reached, the network acceleration request of the user is rejected, and a network acceleration failure message is returned to the CDN component.
  • the reason for the failure of the carrier is that the current download rate of the user reaches C bit/s ; if the network download rate of the user is lower than C bit/s, the network acceleration request can be received and the network acceleration request of the user is executed.
  • the user's current network connection traffic usage may also be queried. If the used traffic has reached D GB, the user's network acceleration request is rejected, and the CDN component is rejected. The network acceleration failure message is returned, and the reason for the failure is: The user traffic has reached D GB; if the user's traffic usage is lower than D GB, the user's network acceleration policy application can be performed, and the execution result of the user network acceleration request is CDN component feedback.
  • the CDN component and the network component may be located in the same device, for example, the device for adjusting the quality of service policy in the embodiment of the present invention, or may be in different devices.
  • Embodiment 2 According to an embodiment of the present invention, an apparatus for adjusting a quality of service policy is provided, and a CDN and a network device are integrated into one device to simultaneously implement a service quality guarantee for a service at the application layer and the network layer.
  • the CDN is integrated with the network device, and when the service is carried on the device, the network acceleration and the content acceleration policy of the user are controlled and adjusted, including the following contents:
  • the CDN component provides CDN services to the user and maintains the user's content state machine
  • the network component provides network access and bearer services to the user, and maintains the user's network state machine;
  • the CDN component can trigger a corresponding response to the network component based on the user state information maintained by itself and according to the change of the user application state.
  • the network policy request can also apply for or revoke the corresponding content acceleration policy according to the application state of the user, the control signaling of the network component, and the message;
  • (g) Configure the user's network acceleration policy control strategy in the network component.
  • the CDN component applies to the network component for network acceleration for the user, the network component performs a query one by one according to the established policy.
  • the specific policies may include: the high-level application occupancy ratio of the port where the user is located, the bandwidth utilization of the port where the user is located, the current download rate of the user, and the usage of the user's traffic; and the check indicates that the network currently meets the acceleration requirement, and may be the user. Accelerate, enter the user network acceleration processing flow, otherwise, return the user network acceleration failure message to the CDN component;
  • the device is a device that combines the functions of the network and the CDN.
  • the network device and the CDN node exist as components of the fusion device, and are a loosely coupled architecture, which implements device level fusion.
  • the interaction between the network component and the CDN component through the internal system interface and the message interface enables the network component and the CDN component to have synergistic capabilities.
  • Both the network component and the CDN component can interact with the device master unit through the internal system interface and the message interface, so that the three have the ability to cooperate.
  • Both the network component and the CDN component can have their own user state machine, and the state machines of the two are independent of each other.
  • the network component and the CDN component respectively maintain a network state machine and a content state machine of the user, thereby facilitating user-based refined operation and service guarantee.
  • the CDN component user state machine can maintain the link state of the user and the service state, so that the CDN component can target a specific user for a specific time period, for a specific content.
  • Implement content acceleration and quality assurance to enhance the user experience can be specific Users in a specific period of time, for specific content, based on the state of the user's use of content, based on the user's application for network acceleration and network quality assurance to the network components, is conducive to enhance the user experience; combined with specific user content acceleration and network acceleration, And the user's state machine can realize the effective combination and linkage of user-based content acceleration and network acceleration to achieve joint acceleration of content and network.
  • the CDN component-based user state machine can distinguish between high-level users and ordinary users.
  • content acceleration and security policies network acceleration and security policies
  • differentiated services can be implemented based on different users; network components can be based on the user's port.
  • the high-level application bandwidth ratio determines whether to accept the user's network acceleration request; the network component can also decide whether to accept the user's network acceleration request according to the bandwidth utilization of the port where the user is located; the network component can connect to the current download rate according to the user network connection. Determining whether to accept the user's network acceleration request; the network component can also decide whether to accept the user's network acceleration request according to the traffic usage of the user's current network connection.
  • the network component can request content deceleration from the CDN component according to the bandwidth utilization of the port where the user is located, for example, if the bandwidth utilization exceeds the set threshold; if the download rate exceeds the set threshold, the CDN component can be Requesting content deceleration for the user, in an actual application, the network component can flexibly request content acceleration from the CDN component according to the download rate of the user's current accelerated application.
  • the adjustment of the user download rate is performed by the network component requesting the content deceleration to the CDN component, so that the rate adjustment can be performed from the source to avoid network congestion caused by the user accelerating too fast, and avoiding the network side simple limit.
  • FIG. 9 is a structural block diagram of an apparatus for adjusting a quality of service policy according to Embodiment 3 of the present invention. As shown in FIG. 9, the apparatus mainly includes: a CDN component, a network component, and a main control unit.
  • the device combines the content distribution node and the network device of the CDN, adopts a loosely coupled manner for fusion, the CDN component adopts an independent CDN service processing board type, and the network component also adopts an independent network service processing board.
  • the type which greatly reduces the complexity of the fusion, and also increases the scalability and flexibility of the system.
  • Network components or CDN components can be expanded to meet specific business needs. Inside the system, the internal interaction interface between the CDN component and the network component is added, mainly for the direct interaction needs of the network component and the CDN component.
  • the CDN component applies to the network component for user network acceleration and receiving execution feedback information, user's network status query and feedback, and the like.
  • the CDN component and the network component also have corresponding internal interfaces with the main control unit to realize management and business interaction.
  • the main control unit sends a network acceleration control policy, a content acceleration adjustment policy, and the like to the network component.
  • the control of the user network acceleration policy and the adjustment of the content acceleration policy mainly perform cooperation and interaction between the CDN components and the network components; the corresponding control and adjustment policies are issued by the main control unit, and the network components are The status of the network, the user's network connection status, and the user's application download status are monitored. If the conditions are met, the acceleration policy is triggered. It requires a large amount of internal interface between the CDN component and the network component, and the main control unit and each component.
  • Both the network component and the CDN component can have their own user state machine, and the state machines of the two are independent of each other.
  • the network component and the CDN component respectively maintain a network state machine and a content state machine of the user, thereby facilitating user-based refined operation and service guarantee.
  • 10 is a schematic diagram of a user content state machine maintained by a CDN component according to Embodiment 3 of the present invention.
  • the user content state machine processes as follows: After the user selects an application service, the CDN component creates a state machine for the user, and the user enters SO state (on state). In the SO state, the user attempts to establish a service link. If the service link is successfully established, the user enters the S1 state (normal state).
  • the establishment is unsuccessful, the corresponding waiting and relinking mechanism is tried, and the repeated link is unsuccessful and exceeds the corresponding limit.
  • the S1 state normal state
  • an attempt may be made to request content acceleration and security; the user requests content acceleration and security services in the CDN component, and the CDN system decides whether to accept the content acceleration and security request of the user according to its own resource condition, and allows the resource to be allowed.
  • the content acceleration and security request of the user is accepted, and the content is accelerated and guaranteed for the user.
  • the user enters the S2 state (content security state); if the CDN system resource is insufficient, the content acceleration of the user cannot be accepted.
  • the guarantee request the user content acceleration and the guarantee request fail, and the state is maintained in the S1 state (normal state); at this time, the corresponding timing waiting mechanism can be started, and the content acceleration and the guarantee request are initiated again after a certain interval.
  • the S1 state normal state
  • the corresponding timing waiting mechanism can be started, and the network acceleration and security policy request is initiated again after a certain interval.
  • the application is completed in the S1 state (normal state)
  • the user directly enters the S5 state (off state), and the corresponding resource is released.
  • the service link is interrupted (the system determines that the user's valid link is lost, and the application service is interrupted)
  • the user directly enters the S5 state (off state), and the corresponding resource is released.
  • S2 state content security state
  • network acceleration and guarantee may be requested, and the CDN component is triggered to send a network acceleration and security policy request to the network component, requesting the network to perform bandwidth improvement and network quality assurance for the user; the network component returns success information, Then the user enters the S4 state (content and network joint security state); if the network component returns a failure message, the user maintains the S2 state (content security state); at this time, the corresponding timing waiting mechanism can be started, and the network acceleration is initiated again after a certain interval. And protection requests.
  • the CDN component When the application is completed in the S2 state (content security state), the CDN component is triggered to cancel the content acceleration and security policy for the user, and then the user enters the S5 state (off state), and the corresponding resource is released.
  • the S2 state content security state
  • the CDN component In the S2 state (content security state), if the service link is interrupted (the system determines that the user's valid link is lost, the service is interrupted), the CDN component is triggered to revoke the content acceleration and security policy for the user, and then the user Enter the S5 state (off state) and release the corresponding resources.
  • the S3 state (network security state)
  • content acceleration and guarantee can be requested
  • content acceleration and security services are requested in the CDN system
  • the CDN system decides whether to accept the content acceleration and security request of the user according to its own resource condition, and allows the resource to be allowed.
  • the user's content acceleration and security request is accepted, and the user enters the S4 state (content and network joint security state); if the CDN system resource is insufficient, the user's content acceleration and security request cannot be accepted, and the user content is accelerated.
  • the protection request fails, the user maintains the S3 state (network security state); at this time, the corresponding timing waiting mechanism can be started, and the content acceleration and security request is initiated again after a certain interval.
  • the CDN component After the application is completed in the S3 state (network security state), the CDN component is triggered to send a message to the network component to cancel the network acceleration and security policy of the user; and then the network component applies to the policy control system to cancel the network acceleration and security policy of the user. After receiving the request, the policy control system sends an instruction to the network service control device to cancel the network acceleration and security policy. After the policy is successfully executed, the network component feeds back the execution result to the CDN component.
  • the CDN component enters the S5 state (off state) to release the corresponding resource; in the S3 state (network security state), if the service link is interrupted (the system determines that the user's valid link is lost, the service is interrupted), then Triggering the CDN component to send the network component to cancel the user's network acceleration and The message of the protection policy; after the CDN component obtains the feedback message of the successful execution of the policy, the user enters the S5 state (off state) and releases the corresponding resource.
  • S3 state network security state
  • the CDN component After the application is completed in the S4 state (content and network joint security state), the CDN component is triggered to revoke the content acceleration and security policy for the user, and the CDN component is also triggered to send a message to the network component to cancel the network acceleration and security policy, and the message is revoked.
  • the user's network acceleration and security policy after completing the revocation of the content and network security policy, the CDN component causes the user to enter the S5 state (off state) and release the corresponding resources.
  • the S4 state content and network joint security state
  • the download link is interrupted (the system determines that the user's valid link is lost, the service is interrupted)
  • the CDN component is triggered to revoke the content acceleration and security policy for the user.
  • the CDN component is also triggered to send a message to the network component to cancel the network acceleration and security policy, and cancel the network acceleration and security policy; after the CDN component completes the revocation of the content and the network security policy, the user enters the S5 state (off state), and releases the corresponding resource of.
  • the access control is performed based on information such as a network state, a user's network connection state, a user's application download rate, and a user's traffic usage;
  • the user's content acceleration is adjusted according to the state of the network, the user's application download rate, and the like.
  • FIG. 11 is a flowchart of a method for controlling a user network acceleration policy according to Embodiment 3 of the present invention. As shown in FIG. 11, the method mainly includes steps S1102 to S1118. In step S1102, the main control unit sends a corresponding control policy to the network component. In the embodiment of the present invention, the main control unit sends a network acceleration constraint policy to the network component, and the specific policy may be customized according to requirements.
  • Step S1104 After the network policy is sent and executed, the network component sends the network acceleration constraint policy execution feedback information to the main control unit; after receiving the network acceleration constraint policy and successfully executing, the network component may constrain the user's network acceleration request according to the policy. And control.
  • Step S1106 The CDN component initiates a network acceleration request for the user to the network component.
  • Step S1110 Query the bandwidth occupied by the high-level application of the port where the user is located, such as the bandwidth ratio. If the total bandwidth of the port is reached, the network acceleration request of the user is rejected, and the network acceleration failure message is returned to the CDN component. The reason for the failure is as follows: The network high-level application bandwidth accounts for A%; if the high-level application occupies less bandwidth than the network A% of the total bandwidth of the port proceeds to step S1112.
  • Step S1112 querying the bandwidth utilization rate of the port where the user is located. If the bandwidth utilization rate reaches 8%, the network acceleration request of the user is rejected, and the network acceleration failure message is returned to the CDN component, and the packet is carried. The reason for the failure is: the port bandwidth utilization reaches B% ; if the port bandwidth utilization is lower than B%, the process goes to step S1114; Step S1114, the user downloads the current network connection download rate, and if C bit/s is reached, the network bandwidth is rejected.
  • the user's network acceleration request, and return the network acceleration failure message to the CDN component, the reason for the failure The user download rate reaches C bit/s ; if the user's network download rate is lower than C bit/s, the process goes to step S1116; Step S1116, the user's current network connection traffic usage is checked, if the used traffic has reached D GB, the network acceleration request of the user is rejected, and the network acceleration failure message is returned to the CDN component, and the reason for the failure is: the user traffic has reached D GB; if the user's traffic usage is lower than D GB, the check passes and enters the user.
  • the request process of the network acceleration policy is performed, and the network acceleration policy application of the user is performed; in step S1118, the execution result of the user network acceleration request is fed back to the CDN component.
  • the above rate indicators are statistical values of a certain interval, rather than instantaneous values, to avoid frequent application and repetition.
  • Step S1204 After the policy is delivered and deployed, the network component sends the content acceleration adjustment policy execution feedback information to the main control unit.
  • the network component can dynamically monitor the corresponding state according to the policy, and the user is The content is accelerated for adjustment and control.
  • the CDN component receives the content deceleration request, performs deceleration of the user's content within the CDN component, and feeds back the execution result to the network component.
  • Step S1208 Perform content deceleration based on a download rate of the user acceleration application.
  • the network component monitors the download rate of the user's current accelerated application in real time, and if the download rate has reached B bit/s, triggers the content deceleration request; the network component sends a content deceleration request for the user to the CDN component;
  • the CDN component After receiving the content deceleration request for the user, the CDN component performs deceleration of the content of the user inside the CDN component; and feeds back the execution result to the network component; and in step S1210, content acceleration is performed based on the download rate of the user acceleration application.
  • the network component monitors the download rate of the user's current accelerated application in real time, and if the download rate is lower than C bit/s, triggers the content acceleration request; the network component sends a content acceleration request for the user to the CDN component;
  • the CDN component After receiving the content acceleration request for the user, the CDN component performs content acceleration for the user inside the CDN component; and feeds back the execution result to the network component.
  • the above rate indicators are statistical values of a certain interval, rather than instantaneous values, to avoid frequent application and repetition.
  • adjusting the user's download rate and bandwidth occupation is to send a user content deceleration request to the CDN component through the network component, decelerating the user's content through the CDN component, thereby reducing the user's network download rate and reducing the port bandwidth utilization;
  • congestion and packet loss can be avoided in the network, which avoids the impact on device performance and avoids the impact on service quality due to packet loss and out-of-order.
  • the present invention achieves the following technical effects: According to the network state of the device, the user network connection state and the like control the network acceleration of the user; according to the network state of the device, the content acceleration state of the user, The user's content acceleration policy is appropriately adjusted. It can better optimize the utilization of network resources, improve the stability of the network, and avoid the excessive acceleration of users, which will affect the network.
  • the content deceleration request is sent back to the CDN component through the network component, which avoids congestion and packet loss on the network side due to excessive user acceleration, which can reduce the impact on the network processing performance and avoid the impact of packet loss and out-of-order on the user service. .
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention.
  • a CDN component provides an application layer CDN service
  • a network component provides a network layer function
  • a CDN component and a network component can mutually negotiate.
  • policy adjustment based on real-time status monitoring results.

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Abstract

本发明公开了一种服务质量策略的调整方法及设备,其中,该方法包括:内容分发网络(CDN)部件与网络部件协商服务质量策略,其中,CDN部件提供应用层CDN服务,网络部件提供网络层功能,服务质量策略包括网络层的速度控制策略和/或应用层的速度控制策略(S802);CDN部件和/或网络部件根据协商结果调整服务质量策略(S804)。本发明在应用层和网络层实现了业务的服务质量协商和调整机制,提高了业务的用户体验。

Description

服务质量策略的调整方法及设备 技术领域 本发明涉及通信领域, 具体而言, 涉及一种服务质量策略的调整方法及设备。 背景技术 互联网业务发展迅速, 尤其是视频业务的发展, 使得业务提供商需要大量的内容 分发网络 (Content Delivery Network, CDN) 服务, 以提升互联网业务的服务质量; 带来了 CDN的大规模发展, 但由于目前的 CDN系统无法感知和控制网络的带宽和质 量, 因而无法真正保障业务的用户体验。 业务的服务质量保障, 需要从内容和网络两个方面来保障, 需要 CDN和网络设 备同时对用户的应用实施保障。 而相关技术中, CDN只能提供应用层面的保障, 网络 只能提供网络层的带宽和质量保障。 只有 CDN 设备和网络设备能够融合, 才能从内 容和网络两方面实施保障, 从而提升用户体验。 在 CDN和网络设备融合之后, 在具体业务承载时, 由网络部件对用户进行网络 加速, 由 CDN 部件对用户进行内容加速; 而具体的加速策略实施时, 需要有一定的 控制机制, 进行灵活的, 适当的控制和调整, 避免对网络资源的过度使用, 避免对其 他业务造成影响, 避免对网络的稳定性和可用性造成影响, 同时也更好提高用户应用 的加速效果。 综上所述, 需要有相关的服务质量策略的调整方法, 灵活地实现服务质量的控制 和调整, 避免对网络资源的过度使用, 避免对其他业务造成影响, 避免对网络的稳定 性和可用性造成影响, 同时也更好提高用户应用的业务体验。 发明内容 本发明实施例提供了一种服务质量策略的调整方法及设备, 以至少解决上述问题 之一。 根据本发明的一个实施例, 提供了一种服务质量策略的调整方法, 包括: CDN部 件与网络部件协商服务质量策略, 其中, 所述 CDN部件提供应用层 CDN服务, 所述 网络部件提供网络层功能, 所述服务质量策略包括网络层的速度控制策略和 /或应用层 的速度控制策略; 所述 CDN部件和 /或所述网络部件根据协商结果调整所述服务质量 策略。 优选地, CDN部件与网络部件协商服务质量策略, 包括: 所述网络部件实时或定 期检测网络状态和 /或各个用户的网络服务状态, 其中, 所述网络状态包括网络资源的 使用情况, 所述网络服务状态包括所述用户的网络使用状态和应用执行情况; 所述网 络部件根据所述实时或定期检测的检测结果请求所述 CDN 部件调整所述服务质量策 略中的所述应用层的速度控制策略。 优选地, 所述网络部件实时或定期检测网络状态和 /或用户的服务状态包括以下至 少之一: 所述网络部件检测端口的带宽利用率; 所述网络部件检测所述各个用户的下 载速率; 所述网络部件检测所述各个用户本次所使用的流量。 优选地, 所述网络部件根据所述实时或定期检测的检测结果请求所述 CDN 部件 调整所述服务质量策略中的内容策略包括以下至少之一: 所述网络部件请求对所述带 宽利用率达到第一阈值的端口下的当前内容加速的用户进行内容减速; 所述网络部件 请求对所述下载速率小于第二阈值的用户进行内容加速, 对所述下载速率大于第三阈 值的当前内容加速的用户进行内容减速, 其中, 所述第二阈值小于所述第三阈值; 所 述网络部件请求对所述流量大于第四阈值的当前内容加速的用户进行内容减速。 优选地, CDN部件与网络部件协商服务质量策略, 包括: 所述 CDN部件向所述 网络部件发送网络加速请求, 其中, 所述网络加速请求用于请求网络层的加速; 所述 网络部件接收所述网络加速请求; 所述网络部件检测所述网络加速请求对应的所述用 户所在端口的网络状态和 /或所述网络加速请求对应的所述用户的网络服务状态, 其 中, 所述网络加速请求对应的所述用户的所述网络状态包括网络资源的使用情况, 所 述网络加速请求对应的所述用户的所述网络服务状态包括所述网络加速请求对应的所 述用户的网络使用状态和应用执行情况; 所述网络部件根据所述网络加速请求对应的 所述用户的检测结果调整所述服务质量策略中的所述网络层的速度控制策略。 优选地, 所述网络部件检测所述网络加速请求对应的所述用户所在端口的网络状 态和 /或所述网络加速请求对应的所述用户的服务状态包括以下至少之一: 所述网络部 件检测所述网络加速请求对应的所述用户所在端口的带宽利用率; 所述网络部件检测 所述网络加速请求对应的所述用户所在端口的高等级应用占用的带宽; 所述网络部件 检测所述网络加速请求对应的所述用户的下载速率; 所述网络部件检测所述网络加速 请求对应的所述用户本次所使用的流量。 优选地, 所述网络部件根据所述网络加速请求对应的所述用户的检测结果调整所 述服务质量策略中的网络策略包括以下至少之一: 如果所述网络加速请求对应的所述 用户所在端口的带宽利用率小于第五阈值, 所述网络部件接受所述网络加速请求, 并 进行网络层的加速; 如果所述网络加速请求对应的所述用户所在端口的高等级应用占 用的带宽小于第六阈值,所述网络部件接受所述网络加速请求, 并进行网络层的加速; 如果所述网络加速请求对应的所述用户的下载速率小于第七阈值, 所述网络部件接受 所述网络加速请求, 并进行网络层的加速; 如果所述网络加速请求对应的所述用户本 次所使用的流量小于第八阈值, 所述网络部件接受所述网络加速请求, 并进行网络层 的加速。 优选地, 所述 CDN部件和所述网络部件位于同一设备。 根据本发明的另一个实施例, 提供了一种服务质量策略的调整设备, 包括: CDN 部件和网络部件, 其中, 所述 CDN部件, 设置为提供应用层 CDN服务, 与所述网络 部件协商服务质量策略, 并根据协商结果调整所述服务质量策略; 所述网络部件, 设 置为提供网络层功能, 与所述 CDN 部件协商所述服务质量策略, 并根据所述协商结 果调整所述服务质量策略; 其中, 所述服务质量策略包括: 网络层的速度控制策略和 / 或应用层的速度控制策略。 优选地, 所述网络部件包括: 第一检测模块, 设置为实时或定期检测网络状态和 / 或各个用户的网络服务状态, 其中, 所述网络状态包括网络资源的使用情况, 所述网 络服务状态包括所述用户网络使用状态和的应用执行情况; 请求模块, 设置为根据所 述第一检测模块的检测结果请求所述 CDN 部件调整所述服务质量策略中的所述应用 层的速度控制策略; 所述 CDN 部件包括: 第一调整模块, 设置为调整所述服务质量 策略中的所述应用层的速度控制策略。 优选地, 所述第一检测模块包括以下至少之一: 第一检测单元, 设置为检测端口 的带宽利用率; 第二检测单元, 设置为检测所述各个用户的下载速率; 第三检测单元, 设置为检测所述各个用户本次所使用的流量。 优选地, 所述请求模块包括以下至少之一: 第一请求单元, 设置为请求对所述带 宽利用率达到第一阈值的端口下的当前内容加速的用户进行内容减速;第二请求单元, 设置为请求对所述下载速率小于第二阈值的用户进行内容加速, 对所述下载速率大于 第三阈值的当前内容加速的用户进行内容减速, 其中, 所述第二阈值小于所述第三阈 值; 第三请求单元, 设置为请求对所述流量大于第四阈值的当前内容加速的用户进行 内容减速。 优选地, 所述 CDN 部件还包括: 发送模块, 设置为向所述网络部件发送网络加 速请求, 其中, 所述网络加速请求用于请求网络层的加速; 所述网络部件还包括: 接 收模块, 设置为接收所述网络加速请求; 第二检测模块, 设置为检测所述网络加速请 求对应的所述用户所在端口的网络状态和 /或所述网络加速请求对应的所述用户的网 络服务状态, 其中, 所述网络加速请求对应的所述用户的所述网络状态包括网络资源 的使用情况, 所述网络加速请求对应的所述用户的所述网络服务状态包括所述网络加 速请求对应的所述用户的网络使用状态和应用执行情况; 第二调整模块, 设置为根据 所述第二检测模块的检测结果调整所述服务质量策略中的所述网络层的速度控制策 略。 优选地, 所述第二检测模块包括以下至少之一: 第四检测单元, 设置为检测所述 网络加速请求对应的所述用户所在端口的带宽利用率; 第五检测单元, 设置为检测所 述网络加速请求对应的所述用户所在端口的高等级应用占用的带宽; 第六检测单元, 设置为检测所述网络加速请求对应的所述用户的下载速率; 第七检测单元, 设置为检 测所述网络加速请求对应的所述用户本次所使用的流量。 优选地, 所述第二调整模块包括以下至少之一: 第一调整单元, 设置为在所述网 络加速请求对应的所述用户所在端口的带宽利用率小于第五阈值的情况下, 接受所述 网络加速请求并进行网络层的加速; 第二调整单元, 设置为在所述网络加速请求对应 的所述用户所在端口的高等级应用占用的带宽小于第六阈值的情况下, 接受所述网络 加速请求并进行网络层的加速; 第三调整单元, 设置为在所述网络加速请求对应的所 述用户的下载速率小于第七阈值的情况下, 接受所述网络加速请求并进行网络层的加 速; 第四调整单元, 设置为在所述网络加速请求对应的所述用户本次所使用的流量小 于第八阈值的情况下, 接受所述网络加速请求并进行网络层的加速。 通过本发明实施例, CDN部件与网络部件协商服务质量策略, 其中, CDN部件 提供应用层 CDN服务, 网络部件提供网络层功能, 服务质量策略包括网络层的速度 控制策略和 /或应用层的速度控制策略; CDN部件和 /或网络部件根据协商结果调整服 务质量策略, 在应用层和网络层同时实现了对业务的服务质量保证, 提高了业务的用 户体验。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部分, 本发 明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的不当限定。 在附图 中- 图 1是根据本发明实施例 图 2是根据本发明实施例 图 3是根据本发明实施例一优选的第一检测模块的结构框图; 图 4是根据本发明实施例一优选的请求模块的结构框图; 图 5是根据本发明实施例一优选的服务质量策略的调整设备的结构框图 图 6是根据本发明实施例一优选的第二检测模块的结构框图; 图 7是根据本发明实施例一优选的第二调整模块的结构框图; 图 8是根据本发明实施例一的服务质量策略的调整方法的流程图; 图 9是根据本发明实施例 图 10是根据本发明实施例三的 CDN部件维护的用户内容状态机的示意图; 图 11是根据本发明实施例三的用户网络加速策略的控制方法的流程图; 图 12是根据本发明实施例三的用户内容加速策略的调整方法的流程图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在不冲突的 情况下, 本申请中的实施例及实施例中的特征可以相互组合。 实施例一 根据本发明实施例, 提供了一种服务质量策略的调整设备, 用以在应用层和网络 层同时实现对业务的服务质量保证。 图 1是根据本发明实施例一的服务质量策略的调整设备的结构框图,如图 1所示, 该设备主要包括: CDN部件 1和网络部件 2, 其中, CDN部件 1, 设置为提供应用层 CDN服务, 与网络部件 2协商服务质量策略, 并根据协商结果调整服务质量策略; 网 络部件 2, 设置为提供网络层功能, 与 CDN部件 1协商服务质量策略, 并根据协商结 果调整服务质量策略; 其中, 服务质量策略包括: 网络层的速度控制策略和 /或应用层 的速度控制策略。 通过本发明实施例, CDN部件 1与网络层部件 2协商服务质量策略, 并由 CDN 部件 1和 /或网络部件 2调整服务质量策略,实现了对网络层的速度控制策略和 /或应用 层的速度控制策略的控制和调整, 在网络层和应用层上同时保证了业务的服务质量, 提高了业务的用户体验。 在本发明实施例的一个实施方式中, 网络部件 2可以实时或定期检测网络资源的 使用情况以及用户的网络使用状态和应用执行情况等因素,并根据检测结果请求 CDN 部件 1调整应用层的速度控制策略, 由 CDN部件 1在应用层上对用户的速度进行调 整。 图 2是根据本发明实施例一优选的服务质量策略的调整设备的结构框图一, 在如 图 2所示的设备中, 网络部件 2可以包括: 第一检测模块 20, 设置为实时或定期检测 网络状态和 /或各个用户的网络服务状态, 其中, 网络状态包括网络资源的使用情况, 网络服务状态包括用户的网络使用状态和应用执行情况; 请求模块 22, 与第一检测模 块 20相耦合, 设置为根据第一检测模块 20的检测结果请求 CDN部件 1调整服务质 量策略中的应用层的速度控制策略; CDN部件 1可以包括: 第一调整模块 10, 设置 为调整服务质量策略中的应用层的速度控制策略。 图 3是根据本发明实施例一优选的第一检测模块的结构框图, 如图 3所示, 第一 检测模块 20可以包括以下至少之一: 第一检测单元 202, 设置为检测端口的带宽利用 率; 第二检测单元 204, 设置为检测各个用户的下载速率; 第三检测单元 206, 设置为 检测各个用户本次所使用的流量。 图 4是根据本发明实施例一优选的请求模块的结构框图, 如图 4所示, 请求模块
22可以包括以下至少之一: 第一请求单元 222, 设置为请求对带宽利用率达到第一阈 值的端口下的当前内容加速的用户进行内容减速; 第二请求单元 224, 设置为请求对 下载速率小于第二阈值的用户进行内容加速, 对下载速率大于第三阈值的当前内容加 速的用户进行内容减速, 其中, 第二阈值小于第三阈值; 第三请求单元 226, 设置为 请求对本次所使用的流量大于第四阈值的当前内容加速的用户进行内容减速。 在本发明实施例的另一个实施方式中, CDN部件 1可以向网络部件 2请求进行网 络加速, 网络部件 2可以根据网络资源的使用情况以及用户的网络使用状态和应用执 行情况等因素判断是否对用户进行网络加速, 在网络层上对用户的速度进行调整。 图 5是根据本发明实施例一优选的服务质量策略的调整设备的结构框图二, 在如 图 5所示的设备中, CDN部件 1还可以包括: 发送模块 12, 设置为向网络部件 2发 送网络加速请求, 其中, 网络加速请求用于请求网络层的加速; 网络部件 2还包括: 接收模块 24, 设置为接收网络加速请求; 第二检测模块 26, 与接收模块 24相耦合, 设置为检测网络加速请求对应的用户所在端口的网络状态和 /或网络加速请求对应的 用户的网络服务状态, 其中, 网络加速请求对应的用户的网络状态包括网络资源的使 用情况, 网络加速请求对应的用户的网络服务状态包括网络加速请求对应的用户的网 络使用状态和应用执行情况; 第二调整模块 28, 与第二检测模块 26相耦合, 设置为 根据第二检测模块 26的检测结果调整服务质量策略中的网络层的速度控制策略。 图 6是根据本发明实施例一优选的第二检测模块的结构框图, 如图 6所示, 第二 检测模块 26可以包括以下至少之一: 第四检测单元 262, 设置为检测网络加速请求对 应的用户所在端口的带宽利用率; 第五检测单元 264, 设置为检测网络加速请求对应 的用户所在端口的高等级应用占用的带宽; 第六检测单元 266, 设置为检测网络加速 请求对应的用户的下载速率; 第七检测单元 268, 设置为检测网络加速请求对应的用 户本次所使用的流量。 图 7是根据本发明实施例一优选的第二调整模块的结构框图, 如图 7所示, 第二 调整模块 28可以包括以下至少之一: 第一调整单元 282, 设置为在网络加速请求对应 的用户所在端口的带宽利用率小于第五阈值的情况下, 接受网络加速请求并进行网络 层的加速; 第二调整单元 284, 设置为在网络加速请求对应的用户所在端口的高等级 应用占用的带宽小于第六阈值的情况下, 接受网络加速请求并进行网络层的加速; 第 三调整单元 286, 设置为在网络加速请求对应的用户的下载速率小于第七阈值的情况 下, 接受网络加速请求并进行网络层的加速; 第四调整单元 288, 设置为在网络加速 请求对应的用户本次所使用的流量小于第八阈值的情况下, 接受网络加速请求并进行 网络层的加速。 根据本发明实施例, 还提供了一种服务质量策略的调整方法, 用以在应用层和网 络层同时实现对业务的服务质量保证。 图 8是根据本发明实施例一的服务质量策略的调整方法的流程图, 如图 8所示, 该方法主要包括步骤 S802至步骤 S804: 步骤 S802, CDN部件与网络部件协商服务质量策略, 其中, CDN部件提供应用 层 CDN服务, 网络部件提供网络层功能, 服务质量策略包括网络层的速度控制策略 和 /或应用层的速度控制策略; 步骤 S804, CDN部件和 /或网络部件根据协商结果调整服务质量策略。 通过本发明实施例, CDN部件与网络层部件协商服务质量策略, 并由 CDN部件 和 /或网络部件调整服务质量策略,实现了对网络层的速度控制策略和 /或应用层的速度 控制策略的控制和调整, 在网络层和应用层上同时保证了业务的服务质量, 提高了业 务的用户体验。 在本发明实施例的一个实施方式中, 网络部件可以实施或定期检测网络资源的使 用情况以及用户的网络使用状态和应用执行情况等因素, 并根据检测结果请求 CDN 部件调整应用层的速度控制策略, 由 CDN 部件在应用层上对用户的速度进行调整。 下面对该实施方式进行详细描述。
CDN部件与网络部件协商服务质量策略时, 网络部件实时或定期检测网络状态和 /或各个用户的网络服务状态, 其中, 网络状态包括网络资源的使用情况, 网络服务状 态包括用户的网络状态和应用执行情况; 网络部件根据实时或定期检测的检测结果请 求 CDN部件调整服务质量策略中的应用层的速度控制策略。 在本发明实施例的一个优选实施方式中, 网络部件实时或定期检测网络状态和 / 或用户的服务状态至少包括以下至少之一: 网络部件检测端口的带宽利用率; 网络部 件检测各个用户的下载速率; 网络部件检测各个用户本次所使用的流量。 进一步的, 网络部件根据检测结果请求 CDN 部件调整服务质量策略中的内容策 略至少包括以下至少之一: 网络部件请求对带宽利用率达到第一阈值的端口下的当前 内容加速的用户进行内容减速; 网络部件请求对下载速率小于第二阈值的用户进行内 容加速, 对下载速率大于第三阈值的当前内容加速的用户进行内容减速, 其中, 第二 阈值小于第三阈值; 网络部件请求对本次所使用的流量大于第四阈值的当前内容加速 的用户进行内容减速。 在实际应用中, 可以基于网络带宽利用率的对服务质量策略进行调整。 例如, 网 络部件可以实时监测端口的带宽利用率, 如端口的带宽利用率达到 A%, 则对该端口 下的用户在应用层的速度控制策略进行调整, 以降低该端口的带宽利用率, 可由网络 部件对当前实施了应用加速的用户, 基于下载速率进行统计排序, 取下载速率 Top N (假设 N=100) 的用户上报 CDN部件, 请求对上述各个用户进行内容减速。 CDN部 件收到内容减速请求, 执行对用户的内容减速, 并将执行结果向网络部件反馈。 在实际应用中,也可以基于应用加速的用户的下载速率对服务质量策略进行调整。 例如, 网络部件实时监测当前应用加速的用户的下载速率, 如下载速率已经达到 B bit/s, 则触发内容减速请求, 由网络部件向 CDN部件发送针对满足该条件的用户的内 容减速请求。 CDN部件收到针对上述用户的内容减速请求后, 执行对该用户的内容减 速; 并将执行结果向网络部件反馈。 如下载速率低于 C bit/s, 则触发内容加速请求, 由网络部件向 CDN部件发送针对该用户的内容加速请求; CDN部件收到针对该用户 的内容加速请求后, 执行对该用户的内容加速; 并将执行结果向网络部件反馈。 在本发明实施例的另一个实施方式中, CDN部件可以向网络部件请求进行网络加 速, 网络部件可以根据网络资源的使用情况以及用户的网络使用状态和应用执行情况 等因素判断是否对用户进行网络加速, 在网络层上对用户的速度进行调整。 下面对该 实施方式进行详细描述。
CDN部件与网络部件协商服务质量策略时, CDN部件可以向网络部件发送网络 加速请求, 其中, 网络加速请求用于请求网络层的加速; 网络部件接收网络加速请求; 网络部件检测网络加速请求对应的用户所在端口的网络状态和 /或网络加速请求对应 的用户的网络服务状态, 其中, 网络加速请求对应的用户的所述网络状态包括网络资 源的使用情况, 网络加速请求对应的用户的网络服务状态包括网络加速请求对应的用 户的网络使用状态和应用执行情况; 网络部件根据网络加速请求对应的用户的检测结 果调整服务质量策略中的网络层的速度控制策略。 在本发明实施例的一个优选实施方式中, 网络部件检测网络加速请求对应的用户 所在端口的网络状态和 /或网络加速请求对应的用户的网络服务状态至少包括以下至 少之一: 网络部件检测网络加速请求对应的用户所在端口的带宽利用率; 网络部件检 测网络加速请求对应的用户所在端口的高等级应用占用的带宽; 网络部件检测网络加 速请求对应的用户的下载速率; 网络部件检测网络加速请求对应的用户本次所使用的 流量。 进一步的, 网络部件根据网络加速请求对应的用户的检测结果调整服务质量策略 中的网络策略至少包括以下至少之一: 如果网络加速请求对应的用户所在端口的带宽 利用率小于第五阈值, 网络部件接受网络加速请求, 并进行网络层的加速; 如果网络 加速请求对应的用户所在端口的高等级应用占用的带宽小于第六阈值, 网络部件接受 网络加速请求, 并进行网络层的加速; 如果网络加速请求对应所述用户的下载速率小 于第七阈值, 网络部件接受网络加速请求, 并进行网络层的加速; 如果网络加速请求 对应的用户本次所使用的流量小于第八阈值, 网络部件接受网络加速请求, 并进行网 络层的加速。 在实际应用中, 针对用户在网络层的速度控制策略的调整, 可以基于网络的高等 级应用带宽占比情况,用户所在端口的带宽使用情况,用户当前网络连接的下载速率, 用户当前网络连接的流量使用情况等, 进行用户网络加速策略的接纳控制。 CDN部件向网络部件发起针对用户的网络加速请求, 网络部件收到用户的网络加 速请求后, 可以查询用户状态, 如查询失败, 则丢弃该网络加速请求; 如能正确查询 到用户的网络状态, 则可以查询用户所在端口的高等级应用占用的带宽, 如带宽占比 达到端口总带宽 A%, 则拒绝用户的网络加速请求, 并向 CDN部件返回网络加速失败 消息, 携带的失败原因为: 网络高等级应用带宽占比达到 A%; 如高等级应用占用的 带宽低于端口总带宽的 %, 则可以接收网络加速请求, 执行该用户的网络加速请求。 优选地, 高等级应用占用的带宽低于端口总带宽的 A%时, 还可以查询用户所在 端口的带宽利用率, 如带宽利用率达到 B%, 则拒绝用户的网络加速请求, 并向 CDN 部件返回网络加速失败消息, 携带的失败原因为: 端口带宽利用率达到 B%; 如端口 带宽利用率低于 B%, 则可以接收网络加速请求, 执行该用户的网络加速请求。 优选地, 端口带宽利用率低于8%时, 还可以查询用户当前网络连接的下载速率, 如达到 C bit/s,则拒绝该用户的网络加速请求,并向 CDN部件返回网络加速失败消息, 携带的失败原因为:用户当前下载速率达到 C bit/s;如用户的网络下载速率低于 C bit/s, 则可以接收网络加速请求, 执行该用户的网络加速请求。 优选地, 用户的网络下载速率低于 C bit/s时, 还可以查询用户当前网络连接的流 量使用情况, 如使用的流量已达 D GB, 则拒绝该用户的网络加速请求, 并向 CDN部 件返回网络加速失败消息, 携带的失败原因为: 用户流量已达 D GB; 如用户的流量 使用低于 D GB, 则可以进行该用户的网络加速策略申请, 并将用户网络加速请求的 执行结果向 CDN部件反馈。 在本发明实施例中, 上述的 CDN 部件和网络部件可以位于同一设备中, 例如本 发明实施例的服务质量策略的调整设备, 也可以在不同的设备中。 实施例二 根据本发明实施例, 提供了一种服务质量策略的调整设备, 将 CDN和网络设备 融合到一个设备中, 用以在应用层和网络层同时实现对业务的服务质量保证。 在本发明实施例中, 把 CDN和网络设备融合, 以及在此设备上承载业务时, 对 用户的网络加速和内容加速策略进行控制和调整, 包括以下内容:
(a) 把 CDN系统的内容分发节点和网络设备进行融合, 作为网络设备的部件, CDN部件和网络部件可以是松耦合关系;
(b) CDN部件和网络部件之间增加内部信令和消息接口; (c) CDN 部件和网络部件分别和融合设备的主控单元间增加内部信令和消息接 口;
(d) CDN部件对用户提供 CDN服务, 并维护用户的内容状态机;
(e) 网络部件对用户提供网络接入和承载服务, 并维护用户的网络状态机; ( f) CDN 部件可基于自身维护的用户状态信息, 根据用户应用状态的变化, 触 发向网络部件发出相应的网络策略请求, 同时也可根据用户的应用状态、 网络部件的 控制信令和消息, 申请或撤销相应的内容加速策略;
(g) 在网络部件配置用户的网络加速策略的控制策略。 当 CDN部件向网络部件 申请针对用户的网络加速时, 网络部件根据既定的策略, 进行逐一的查询。 具体的策 略可以包括: 用户所在端口的高等级应用占用比, 用户所在端口的带宽利用率, 用户 当前下载速率, 用户的流量使用情况等; 通过检查则说明网络当前满足加速的要求, 可以为用户加速, 进入用户网络加速处理流程, 否则, 向 CDN 部件返回用户网络加 速失败消息;
(h)在网络部件配置用户的内容加速策略的控制策略。具体的策略可以包括: 用 户所在端口的带宽利用率, 用户网络连接当前下载速率, 用户当前加速应用的下载速 率等; 网络部件定期检测策略所定的指标, 如有符合, 则触发相应的内容加速调整策 略。 在本发明实施例中, 该设备是一个融合了网络和 CDN 功能的设备, 网络设备和 CDN节点作为该融合设备的部件存在,是一种松耦合的架构,实现了设备层面的融合。 网络部件和 CDN 部件之间通过内部系统接口和消息接口进行交互, 使得网络部件和 CDN部件具备了协同的能力。 网络部件和 CDN部件均可以和设备主控单元间通过内 部系统接口和消息接口进行交互, 使得三者具备协同的能力。 网络部件和 CDN 部件都可以有自己的用户状态机, 两者的状态机相互独立。 优 选地, 网络部件和 CDN 部件分别维护有用户的网络状态机和内容状态机, 便于实现 基于用户的精细化运营和服务保障。 在本发明实施例的一个优选实施方式中, CDN部件用户状态机, 可以维护用户的 链接状态以及服务状态, 从而使得 CDN 部件可以针对特定的用户, 在特定的时间段 内, 针对特定的内容, 实施内容加速和质量保障, 提升用户体验。 并且可以针对特定 的用户在特定的时间段内, 针对特定的内容, 根据用户使用内容的状态, 基于用户向 网络部件申请网络加速和网络质量保障, 有利于提升用户体验; 结合基于特定用户内容加速和网络加速, 以及用户的状态机, 可实现基于用户的 内容加速和网络加速的有效结合和联动, 实现内容和网络的联合加速。 基于 CDN 部 件的用户状态机, 可区分高等级用户和普通用户, 在内容加速和保障策略, 网络加速 和保障策略上, 可基于不同的用户实施差异化的服务; 网络部件可根据用户所在端口的高等级应用带宽占比情况, 决定是否接纳用户的 网络加速请求; 网络部件还可根据用户所在端口的带宽利用率, 决定是否接纳用户的 网络加速请求; 网络部件可根据用户网络连接当前的下载速率, 决定是否接纳用户的 网络加速请求; 网络部件还可以根据用户本次网络连接的流量使用情况, 决定是否接 纳用户的网络加速请求。 优选地, 网络部件可根据用户所在端口的带宽利用率, 如带宽利用率超过设定的 阀值, 则可向 CDN部件请求内容减速; 如下载速率超过设定的阀值, 则可向 CDN部 件请求针对该用户的内容减速, 在实际应用中, 网络部件可根据用户当前加速应用的 下载速率, 灵活向 CDN部件请求内容加速。 通过本发明实施例, 用户下载速率的调整, 是通过网络部件向 CDN 部件请求内 容减速的方式完成, 从而可以从源头进行速率调整,避免用户加速过快造成网络拥塞, 也避免在网络侧单纯限速, 丢弃带来的对网络性能的影响, 以及由于丢包导致的数据 包乱序进而影响业务; 针对应用下载速率慢的用户, 则再次请求内容加速, 使得 CDN 部件有针对性地对用户进行加速保障。 实施例三 根据本发明实施例, 提供了一种服务质量策略的调整设备, 将 CDN和网络设备 融合到一个设备中, 用以在应用层和网络层同时实现对业务的服务质量保证。 图 9是根据本发明实施例三的服务质量策略的调整设备的结构框图,如图 9所示, 该设备主要包括: CDN部件、 网络部件和主控单元。 在本发明实施例中, 该设备融合了 CDN 的内容分发节点和网络设备, 采用松耦 合的方式进行融合, CDN部件采用独立的 CDN业务处理板型态, 网络部件也采用独 立的网络业务处理板型态, 从而大大降低融合的复杂度, 同时也提高了系统的扩展性 和灵活度。 可根据具体的业务需要扩充网络部件或 CDN部件。 在系统的内部, 增加 CDN 部件和网络部件之间的内部交互接口, 主要用于网络 部件和 CDN部件的直接交互需要。 例如, CDN部件向网络部件申请用户网络加速及 接收执行反馈信息, 用户的网络状态查询及反馈等。 同时, CDN部件和网络部件也分 别和主控单元有相应的内部接口, 实现管理和业务上的交互。 例如, 主控单元向网络 部件下发网络加速控制策略、 内容加速调整策略等。 在本发明实施例中, 用户网络加速策略的控制和内容加速策略的调整, 主要在 CDN部件、网络部件之间进行协同和交互;通过主控单元下发相应的控制和调整策略, 由网络部件对网络的状态, 用户的网络连接状态, 用户的应用下载状态等进行监测, 符合条件则触发加速策略的调整, 需要大量依赖 CDN 部件和网络部件之间的内部接 口以及主控单元和各部件之间的内部接口。 网络部件和 CDN 部件都可以有自己的用户状态机, 两者的状态机相互独立。 优 选地, 网络部件和 CDN 部件分别维护有用户的网络状态机和内容状态机, 便于实现 基于用户的精细化运营和服务保障。 图 10是根据本发明实施例三的 CDN部件维护的用户内容状态机的示意图, 如图 10所示, 用户内容状态机处理如下: 用户选择应用服务后, CDN部件为用户创建状态机, 用户进入 SO状态 (开启状 态)。 在 SO状态, 用户尝试建立业务链接, 业务链接建立成功则进入 S1状态 (普通状 态), 如建立不成功, 则尝试相应的等待和重新链接机制, 重复链接不成功且超过相应 的限制, 则用户进入 S5状态 (关闭状态), 释放相应的资源。 在 S1状态 (普通状态) 下, 可尝试请求内容加速和保障; 用户在 CDN部件请求 内容加速和保障服务, CDN系统根据自身的资源情况决定是否接纳该用户的内容加速 和保障请求, 在资源允许的情况下, CDN接纳该用户的内容加速和保障请求, 为用户 进行内容加速和保障, 此时, 该用户进入 S2状态 (内容保障状态); 如 CDN系统资 源不足, 不能接受该用户的内容加速和保障请求, 该用户内容加速和保障请求失败, 则维持在 S1状态 (普通状态); 此时可启动相应的计时等待机制, 一定间隔后再次发 起内容加速和保障请求。 在 S1状态(普通状态)下, 也可尝试请求网络加速和保障; 用户在此状态下可触 发 CDN 部件向网络部件发送网络加速和保障策略请求, 请求网络部件针对该用户进 行带宽提升和网络质量保障; 网络部件通过内部接口向 CDN 部件返回成功信息, 则 用户进入 S3状态 (网络保障状态), 如网络部件返回失败消息, 则用户维持在 S1状 态(普通状态), 此时可启动相应的计时等待机制, 一定间隔后再次发起网络加速和保 障策略请求。 在 S1状态 (普通状态) 下完成应用的使用, 则该用户直接进入 S5状态 (关闭状 态), 释放相应的资源。 在 S1 状态 (普通状态)下, 如业务链接中断 (系统判断为失去 用户的有效链接, 应用服务中断的情况下), 则该用户直接进入 S5状态 (关闭状态), 释放相应的资源。 在 S2状态 (内容保障状态) 下, 可请求网络加速和保障, 触发 CDN部件向网络 部件发送网络加速和保障策略请求, 请求网络针对该用户进行带宽提升和网络质量保 障; 网络部件返回成功信息, 则用户进入 S4状态 (内容和网络联合保障状态); 如网 络部件返回失败消息, 则用户维持在 S2状态 (内容保障状态); 此时可启动相应的计 时等待机制, 一定间隔后再次发起网络加速和保障请求。 在 S2状态 (内容保障状态) 下完成应用, 则触发 CDN部件撤销对该用户的内容 加速和保障策略, 然后, 该用户进入 S5 状态 (关闭状态), 释放相应的资源。 在 S2 状态 (内容保障状态) 下, 如业务链接中断 (系统判断为失去用户的有效链接, 服务 中断的情况下), 则触发 CDN部件撤销对该用户的内容加速和保障策略, 然后, 该用 户进入 S5状态 (关闭状态), 释放相应的资源。 在 S3状态 (网络保障状态) 下, 可请求内容加速和保障, 在 CDN系统内请求内 容加速和保障服务, CDN系统根据自身的资源情况决定是否接纳该用户的内容加速和 保障请求, 在资源允许的情况下, CDN系统接纳该用户的内容加速和保障请求, 用户 进入 S4状态 (内容与网络联合保障状态); 如 CDN系统资源不足, 不能接受该用户 的内容加速和保障请求,该用户内容加速和保障请求失败,则该用户维持在 S3状态(网 络保障状态); 此时可启动相应的计时等待机制,一定间隔后再次发起内容加速和保障 请求。 在 S3状态 (网络保障状态) 下完成应用, 则触发 CDN部件向网络部件发送撤销 该用户的网络加速和保障策略的消息; 再由网络部件向策略控制系统申请撤销该用户 的网络加速和保障策略, 策略控制系统收到请求后向网络业务控制设备下发指令, 撤 销网络加速和保障策略; 策略成功执行后, 网络部件向 CDN部件反馈执行结果。 CDN 部件将该用户进入 S5状态 (关闭状态), 释放相应的资源; 在 S3状态(网络保障状态)下, 如业务链接中断(系统判断为失去用户的有效链 接, 服务中断的情况下), 则触发 CDN部件向网络部件发送撤销该用户的网络加速和 保障策略的消息; CDN部件获得策略成功执行的反馈消息后, 将该用户进入 S5状态 (关闭状态), 释放相应的资源。 在 S4状态 (内容和网络联合保障状态) 下完成应用, 则触发 CDN部件撤销对该 用户的内容加速和保障策略, 同时也触发 CDN 部件向网络部件发送撤销网络加速和 保障策略的消息, 撤销该用户的网络加速和保障策略; CDN部件在完成内容和网络保 障策略的撤销后, 使该用户进入 S5状态 (关闭状态), 释放相应的资源。 在 S4状态(内容和网络联合保障状态)下, 如下载链接中断(系统判断为失去用 户的有效链接, 服务中断的情况下), 则触发 CDN部件撤销对该用户的内容加速和保 障策略, 同时也触发 CDN 部件向网络部件发送撤销网络加速和保障策略的消息, 撤 销网络加速和保障策略; CDN部件在完成内容和网络保障策略的撤销后, 使该用户进 入 S5状态 (关闭状态), 释放相应的资源。 在本发明实施例中, 对用户在普通状态, 内容保障状态下申请网络加速时, 基于 网络的状态、 用户的网络连接状态、 用户的应用下载速率、 用户的流量使用等信息进 行准入控制; 对用户在内容保障状态, 在内容和网络联合保障状态下, 根据网络的状 态, 用户的应用下载速率等对用户的内容加速进行调整。 以达到优化网络资源使用, 保障网络稳定性, 最大程度保障业务质量的目标。 下面分别对本发明实施例的在应用层的速度控制策略和在网络层的速度控制策略 的调整方法进行描述。 图 11是根据本发明实施例三的用户网络加速策略的控制方法的流程图, 如图 11 所示, 该方法主要包括步骤 S1102至步骤 S1118。 步骤 S1102, 主控单元向网络部件下发相应的控制策略; 在本发明实施例中, 主控单元向网络部件下发网络加速约束策略, 具体策略可以 根据需要进行定制。 例如, 用户所在端口的高等级应用带宽占比达到 A% (假设 A%=60%), 则不再接 纳用户网络加速请求; 目的是保障网络高等级应用的质量, 也保障其他业务的质量, 避免由于接纳新的用户加速带来的网络拥塞; 用户所在端口带宽利用率达到 B% (假设 B%=90%), 则不再接纳用户网络加速请求, 避免由于接纳新的用户加速带来的网络拥 塞; 用户当前网络连接的下载速率已达 C bit/s (假设 C=50M), 则不再接纳该用户网 络加速请求, 避免单一用户的网络速率过高; 用户本次网络连接的流量已达 D GB (;假 设 D=10), 则不再接纳该用户的网络加速请求, 避免单一用户过度使用网络。 步骤 S1104, 网络策略下发执行后, 网络部件向主控单元发送网络加速约束策略 执行反馈信息; 网络部件在收到网络加速约束策略并成功执行后, 可以根据策略对用户的网络加 速请求进行约束和控制。 步骤 S 1106, CDN部件向网络部件发起针对用户的网络加速请求; 网络部件收到用户的网络加速请求后, 执行步骤 S1108至步骤 S1118。 步骤 S1108, 查询用户状态, 如查询失败, 则丢弃该加速请求; 如能正确查询到 用户的网络状态, 进入步骤 S1110; 步骤 S1110, 查询用户所在端口的高等级应用占用的带宽, 如带宽占比达到端口 总带宽 %, 则拒绝用户的网络加速请求, 并向 CDN部件返回网络加速失败消息, 携 带的失败原因为: 网络高等级应用带宽占比达到 A%; 如高等级应用占用的带宽低于 端口总带宽的 A%, 进入步骤 S1112; 步骤 S1112, 查询用户所在端口的带宽利用率, 如带宽利用率达到8%, 则拒绝用 户的网络加速请求, 并向 CDN 部件返回网络加速失败消息, 携带的失败原因为: 端 口带宽利用率达到 B%; 如端口带宽利用率低于 B%, 则进入步骤 S1114; 步骤 S1114, 查询用户当前网络连接的下载速率, 如达到 C bit/s, 则拒绝该用户 的网络加速请求, 并向 CDN 部件返回网络加速失败消息, 携带的失败原因为: 用户 当前下载速率达到 C bit/s; 如用户的网络下载速率低于 C bit/s, 则进入步骤 S1116; 步骤 S1116, 查询用户当前网络连接的流量使用情况, 如使用的流量已达 D GB, 则拒绝该用户的网络加速请求, 并向 CDN 部件返回网络加速失败消息, 携带的失败 原因为: 用户流量已达 D GB; 如用户的流量使用低于 D GB, 则检查通过, 进入用户 网络加速策略的请求流程, 进行该用户的网络加速策略申请; 步骤 S1118, 将用户网络加速请求的执行结果向 CDN部件反馈。 在本发明实施例的一个优选实施方式中, 以上速率指标均为一定区间的统计值, 而非瞬时值, 避免频繁申请和反复。 通过采用该方法, 可以基于网络的高等级应用带宽占比情况, 用户所在端口的带 宽使用情况, 用户当前网络连接的下载速率, 用户当前网络连接的流量使用情况等, 进行用户网络加速策略的接纳控制。 且在融合设备内部实现, 基于设备自身的状态, 通过内部接口完成, 实现简单。 图 12是根据本发明实施例三的用户内容加速策略的调整方法的流程图, 如图 12 所示, 该方法包括步骤 S1202至步骤 S1210。 步骤 S1202, 主控单元向网络部件下发相应的策略; 主控单元向网络部件下发内容加速调整策略; 具体策略可以根据需要进行定制。 例如, 用户所在端口带宽利用率达到 A% (假设 A%=90%), 则触发相应端口下的 用户的内容加速调整策略, 请求内容减速, 避免出现端口拥塞; 用户当前加速应用的 下载速率已达 B bit/s (假设 B=50M), 则触发针对该用户的内容减速请求, 避免单一 用户的下载速率过高; 用户的当前加速应用的下载速率低于 C bit/s (假设 C=5M), 则 表明该用户的内容加速效果不明显, 由网络部件向 CDN 部件申请针对该用户的内容 加速请求, 再次请求内容加速, 使得 CDN 部件对该用户的内容加速进行保障, 提高 内容加速速率。 步骤 S1204, 策略下发并部署后, 网络部件向主控单元发送内容加速调整策略执 行反馈信息; 网络部件在收到内容加速调整策略并成功部署后, 可以根据策略实时监测相应的 状态, 对用户的内容加速进行调整和控制。 步骤 S1206, 基于网络带宽利用率的调整; 网络部件实时监测用户端口的带宽利用率, 如端口利用率达到 A%, 则需要对该 端口下的用户内容加速策略进行调整, 以降低该端口的带宽利用率; 可由网络部件对 当前实施了应用加速的用户, 基于下载速率进行统计排序, 取下载速率 Top N (假设 N=100) 的用户上报 CDN部件, 请求内容减速。 CDN部件收到内容减速请求, 在 CDN部件内部执行对用户的内容减速, 并将执 行结果向网络部件反馈。 步骤 S1208, 基于用户加速应用的下载速率进行内容减速; 网络部件实时监测用户当前加速应用的下载速率, 如下载速率已经达到 B bit/s, 则触发内容减速请求; 由网络部件向 CDN部件发送针对该用户的内容减速请求;
CDN部件收到针对该用户的内容减速请求后, 在 CDN部件内部执行对该用户的 内容减速; 并将执行结果向网络部件反馈; 步骤 S1210, 基于用户加速应用的下载速率进行内容加速。 网络部件实时监测用户当前加速应用的下载速率, 如下载速率低于 C bit/s, 则触 发内容加速请求; 由网络部件向 CDN部件发送针对该用户的内容加速请求;
CDN部件收到针对该用户的内容加速请求后, 在 CDN部件内部执行对该用户的 内容加速; 并将执行结果向网络部件反馈。 在本发明实施例的一个优选实施方式中, 以上速率指标均为一定区间的统计值, 而非瞬时值, 避免频繁申请和反复。 通过采用上述方法, 调整用户的下载速率和带宽占用是通过网络部件向 CDN 部 件发送用户内容减速请求, 通过 CDN 部件对用户的内容减速从而降低用户的网络下 载速率, 降低端口带宽利用率; 而不是采用在网络部件限制带宽的方式, 可避免在网 络中造成拥塞和丢包, 从而避免了对设备性能的影响, 也避免了由于丢包和乱序而造 成对业务质量的影响。 从以上的描述中, 可以看出, 本发明实现了如下技术效果: 据设备的网络状态, 用户网络连接状态等对用户的网络加速进行控制; 根据设备的网络状态, 用户的内容 加速状态, 对用户的内容加速策略进行适当的调整。 可更好的优化网络资源的利用, 提高网络的稳定性,避免用户加速过多,过高造成对网络的影响。通过网络部件向 CDN 部件反馈内容减速请求, 避免了由于用户加速过高, 造成在网络侧的拥塞和丢包, 能 降低对网络处理性能的影响, 避免丢包和乱序对用户业务造成的影响。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可以用通用 的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布在多个计算装置所 组成的网络上, 可选地, 它们可以用计算装置可执行的程序代码来实现, 从而, 可以 将它们存储在存储装置中由计算装置来执行, 并且在某些情况下, 可以以不同于此处 的顺序执行所示出或描述的步骤, 或者将它们分别制作成各个集成电路模块, 或者将 它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样, 本发明不限制于任 何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领域的技 术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内, 所作的 任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。 工业实用性 本发明提供的上述技术方案, 可以应用于服务质量策略的调整过程中, 基于上述 技术方案, CDN部件提供应用层 CDN服务, 网络部件提供网络层功能, CDN部件和 网络部件可以相互协商, 并根据实时的状态监测结果实施策略调整。 解决了相关技术 中 CDN 系统无法感知和控制网络的带宽和质量的技术问题, 从而从内容和网络两方 面实施保障, 提升了用户体验。

Claims

权 利 要 求 书
1. 一种服务质量策略的调整方法, 包括:
内容分发网络 CDN部件与网络部件协商服务质量策略, 其中, 所述 CDN 部件提供应用层 CDN服务, 所述网络部件提供网络层功能, 所述服务质量策 略包括网络层的速度控制策略和 /或应用层的速度控制策略;
所述 CDN部件和 /或所述网络部件根据协商结果调整所述服务质量策略。
2. 根据权利要求 1所述的方法, 其中, CDN部件与网络部件协商服务质量策略, 包括:
所述网络部件实时或定期检测网络状态和 /或各个用户的网络服务状态,其 中, 所述网络状态包括网络资源的使用情况, 所述网络服务状态包括所述用户 网络使用状态和应用执行情况;
所述网络部件根据所述实时或定期检测的检测结果请求所述 CDN部件调 整所述服务质量策略中的所述应用层的速度控制策略。
3. 根据权利要求 2所述的方法, 其中, 所述网络部件实时或定期检测网络状态和 / 或用户的网络服务状态包括以下至少之一:
所述网络部件检测端口的带宽利用率;
所述网络部件检测所述各个用户的下载速率;
所述网络部件检测所述各个用户本次所使用的流量。
4. 根据权利要求 3所述的方法, 其中, 所述网络部件根据所述实时或定期检测的 检测结果请求所述 CDN部件调整所述服务质量策略中的内容策略包括以下至 少之一- 所述网络部件请求对所述带宽利用率达到第一阈值的端口下的当前内容加 速的用户进行内容减速;
所述网络部件请求对所述下载速率小于第二阈值的用户进行内容加速, 对 所述下载速率大于第三阈值的当前内容加速的用户进行内容减速, 其中, 所述 第二阈值小于所述第三阈值; 所述网络部件请求对所述流量大于第四阈值的当前内容加速的用户进行内 容减速。
5. 根据权利要求 1至 4中任一项所述的方法, 其中, CDN部件与网络部件协商服 务质量策略, 包括:
所述 CDN部件向所述网络部件发送网络加速请求, 其中, 所述网络加速 请求用于请求网络层的加速;
所述网络部件接收所述网络加速请求;
所述网络部件检测所述网络加速请求对应的所述用户所在端口的网络状态 和 /或所述网络加速请求对应的所述用户的网络服务状态, 其中, 所述网络加速 请求对应的所述用户的所述网络状态包括网络资源的使用情况, 所述网络加速 请求对应的所述用户的所述网络服务状态包括所述网络加速请求对应的所述用 户的网络使用状态和应用执行情况;
所述网络部件根据所述网络加速请求对应的所述用户的检测结果调整所述 服务质量策略中的所述网络层的速度控制策略。
6. 根据权利要求 5所述的方法, 其中, 所述网络部件检测所述网络加速请求对应 的所述用户所在端口的网络状态和 /或所述网络加速请求对应的所述用户的网 络服务状态包括以下至少之一:
所述网络部件检测所述网络加速请求对应的所述用户所在端口的带宽利用 率;
所述网络部件检测所述网络加速请求对应的所述用户所在端口的高等级应 用占用的带宽;
所述网络部件检测所述网络加速请求对应的所述用户的下载速率; 所述网络部件检测所述网络加速请求对应的所述用户本次所使用的流量。
7. 根据权利要求 6所述的方法, 其中, 所述网络部件根据所述网络加速请求对应 的所述用户的检测结果调整所述服务质量策略中的网络策略包括以下至少之 如果所述网络加速请求对应的所述用户所在端口的带宽利用率小于第五阈 值, 所述网络部件接受所述网络加速请求, 并进行网络层的加速; 如果所述网络加速请求对应的所述用户所在端口的高等级应用占用的带宽 小于第六阈值, 所述网络部件接受所述网络加速请求, 并进行网络层的加速; 如果所述网络加速请求对应的所述用户的下载速率小于第七阈值, 所述网 络部件接受所述网络加速请求, 并进行网络层的加速;
如果所述网络加速请求对应的所述用户本次所使用的流量小于第八阈值, 所述网络部件接受所述网络加速请求, 并进行网络层的加速。
8. 根据权利要求 1至 7中任一项所述的方法, 其中, 所述 CDN部件和所述网络 部件位于同一设备。
9. 一种服务质量策略的调整设备, 包括: 内容分发网络 CDN部件和网络部件, 其中,
所述 CDN部件, 设置为提供应用层 CDN服务, 与所述网络部件协商服务 质量策略, 并根据协商结果调整所述服务质量策略;
所述网络部件, 设置为提供网络层功能, 与所述 CDN部件协商所述服务 质量策略, 并根据所述协商结果调整所述服务质量策略;
其中, 所述服务质量策略包括: 网络层的速度控制策略和 /或应用层的速度 控制策略。
10. 根据权利要求 9所述的设备, 其中,
所述网络部件包括:
第一检测模块,设置为实时或定期检测网络状态和 /或各个用户的网络服务 状态, 其中, 所述网络状态包括网络资源的使用情况, 所述网络服务状态包括 所述用户的网络使用状态和应用执行情况;
请求模块, 设置为根据所述第一检测模块的检测结果请求所述 CDN部件 调整所述服务质量策略中的所述应用层的速度控制策略;
所述 CDN部件包括: 第一调整模块, 设置为调整所述服务质量策略中的所述应用层的速度控制 策略。
11. 根据权利要求 10所述的设备, 其中, 所述第一检测模块包括以下至少之一: 第一检测单元, 设置为检测端口的带宽利用率; 第二检测单元, 设置为检测所述各个用户的下载速率;
第三检测单元, 设置为检测所述各个用户本次所使用的流量。
12. 根据权利要求 11所述的设备, 其中, 所述请求模块包括以下至少之一:
第一请求单元, 设置为请求对所述带宽利用率达到第一阈值的端口下的当 前内容加速的用户进行内容减速;
第二请求单元, 设置为请求对所述下载速率小于第二阈值的用户进行内容 加速, 对所述下载速率大于第三阈值的当前内容加速的用户进行内容减速, 其 中, 所述第二阈值小于所述第三阈值;
第三请求单元, 设置为请求对所述流量大于第四阈值的当前内容加速的用 户进行内容减速。
13. 根据权利要求 9至 12中任一项所述的设备, 其中,
所述 CDN部件还包括:
发送模块, 设置为向所述网络部件发送网络加速请求, 其中, 所述网络加 速请求用于请求网络层的加速;
所述网络部件还包括:
接收模块, 设置为接收所述网络加速请求;
第二检测模块, 设置为检测所述网络加速请求对应的所述用户所在端口的 网络状态和 /或所述网络加速请求对应的所述用户的网络服务状态, 其中, 所述 网络加速请求对应的所述用户的所述网络状态包括网络资源的使用情况, 所述 网络加速请求对应的所述用户的所述的网络服务状态包括所述网络加速请求对 应的所述用户的网络使用状态和应用执行情况;
第二调整模块, 设置为根据所述第二检测模块的检测结果调整所述服务质 量策略中的所述网络层的速度控制策略。
14. 根据权利要求 13所述的设备, 其中, 所述第二检测模块包括以下至少之一: 第四检测单元, 设置为检测所述网络加速请求对应的所述用户所在端口的 带宽利用率;
第五检测单元, 设置为检测所述网络加速请求对应的所述用户所在端口的 高等级应用占用的带宽;
第六检测单元,设置为检测所述网络加速请求对应的所述用户的下载速率; 第七检测单元, 设置为检测所述网络加速请求对应的所述用户本次所使用 的流量。
15. 根据权利要求 14所述的设备, 其中, 所述第二调整模块包括以下至少之一: 第一调整单元, 设置为在所述网络加速请求对应的所述用户所在端口的带 宽利用率小于第五阈值的情况下,接受所述网络加速请求并进行网络层的加速; 第二调整单元, 设置为在所述网络加速请求对应的所述用户所在端口的高 等级应用占用的带宽小于第六阈值的情况下, 接受所述网络加速请求并进行网 络层的加速;
第三调整单元, 设置为在所述网络加速请求对应的所述用户的下载速率小 于第七阈值的情况下, 接受所述网络加速请求并进行网络层的加速;
第四调整单元, 设置为在所述网络加速请求对应的所述用户本次所使用的 流量小于第八阈值的情况下, 接受所述网络加速请求并进行网络层的加速。
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