WO2016023149A1 - 一种业务服务质量保证方法与集中控制器 - Google Patents

一种业务服务质量保证方法与集中控制器 Download PDF

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Publication number
WO2016023149A1
WO2016023149A1 PCT/CN2014/084088 CN2014084088W WO2016023149A1 WO 2016023149 A1 WO2016023149 A1 WO 2016023149A1 CN 2014084088 W CN2014084088 W CN 2014084088W WO 2016023149 A1 WO2016023149 A1 WO 2016023149A1
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service
network
qos
qos information
centralized controller
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PCT/CN2014/084088
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English (en)
French (fr)
Inventor
邓俊妮
赵永利
张�杰
陈浩然
何锐颖
郑好棉
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华为技术有限公司
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Priority to PCT/CN2014/084088 priority Critical patent/WO2016023149A1/zh
Publication of WO2016023149A1 publication Critical patent/WO2016023149A1/zh

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  • the present invention relates to the field of communications, and in particular, to a service quality assurance method and a centralized controller. Background technique
  • next-generation network have the ability to guarantee the quality of service (QoS) to transport multiple types of services.
  • QoS quality of service
  • End-to-end mode for real-time efficient mixing or concurrent transmission of data, voice, and video.
  • operators can not only improve competition through opening high value-added services, but also develop operational strategies for different user groups. This can not only meet the QoS of different users and different services, but also improve the utilization of network resources, thereby expanding market penetration.
  • a passive optical network (PON) is used as an access network, and a packet transport network is accessed (Packet Transport Network).
  • PON passive optical network
  • Packet Transport Network Packet Transport Network
  • the PON classifies and identifies the service according to the QoS policy of the PON.
  • the classification and identification information of the previous service in the PON is blocked.
  • the network node in the PTN identifies the service according to the PTN's own QoS policy.
  • An embodiment of the present invention provides a service quality assurance method and a centralized controller, which are used in a group.
  • the end-to-end QoS of the service is guaranteed.
  • a first aspect of the embodiments of the present invention provides a service quality assurance method, including: a centralized controller receives a service query request for a first service sent by a network node in a first network, where the service query request is used to query a location
  • the QoS information of the first service where the QoS information includes a QoS parameter and a service level
  • the centralized controller is a centralized controller of the first network
  • the first network is a subnet of the networking.
  • the networking is composed of a plurality of subnets, where the first service is a service that is transmitted through the first network in the networking, and the network node in the first network is the first service. a network node that passes through the first network during transmission;
  • the centralized controller sends the QoS information of the first service to a network node in the first network, so that the network node in the first network guarantees the QoS of the first service according to the service level.
  • the parameter where the higher the service level of a service, the higher the priority is to guarantee the QoS parameters of the service;
  • the centralized controller shares QoS information of the first service to a centralized controller of other networks in the networking, so that network nodes in other networks ensure QoS parameters of the first service according to the service level. .
  • the step of the centralized controller receiving a service query request for a first service sent by a network node in a first network
  • the method further includes:
  • the centralized controller queries whether the QoS information of the first service is stored;
  • the centralized controller acquires QoS information of the first service from the operation support system 0SS.
  • the QoS information is customized by the user when processing the service, and is recorded in the 0SS of the operator. .
  • the third implementation manner of the first aspect of the embodiment of the present invention is characterized in that the centralized controller Before the step of transmitting the QoS information of the first service to the network node in the first network, the method further includes: The centralized controller receives QoS information of the first service shared by a centralized controller of other networks in the networking.
  • the method further includes: modifying, by the centralized controller, the first service in the first network according to the service level of the first service QoS priority, the higher the service level, the higher the QoS priority;
  • Determining, according to the service level, the QoS parameter of the first service specifically: ensuring, according to the QoS priority of the first service in the first network, a QoS parameter of the first service, where, a service The higher the QoS priority, the higher the priority is to guarantee the QoS parameters of the service.
  • Querying whether the QoS information of the first service is stored includes:
  • the centralized controller queries whether the QoS information of the first service is stored in the service maintenance table; if the QoS information of the first service is not stored, the QoS information includes:
  • the method further includes:
  • the centralized controller When it is determined that the QoS information of the first service is not stored in the service maintenance table, the centralized controller adds the QoS information of the first service to the service maintenance table as a new entry.
  • a second aspect of the embodiments of the present invention provides a centralized controller, including:
  • a first receiving module configured to receive a service query request for the first service sent by the network node in the first network, where the service query request is used to query the quality of service QoS information of the first service, where the QoS information includes The QoS parameter and the service level
  • the centralized controller is a centralized controller of the first network
  • the first network is a subnet of the networking
  • the networking is composed of multiple subnets
  • the first service a network node that is transmitted by the first network in the network, where the network node in the first network is a network node that is used when the first service is transmitted in the first network;
  • a sharing module configured to share QoS information of the first service to a centralized controller of another network in the networking, so that network nodes in other networks ensure QoS parameters of the first service according to the service level .
  • the centralized controller further includes:
  • a querying module configured to query whether QoS information of the first service is stored
  • an obtaining module configured to acquire, when the query module queries the QoS information that the first service is not stored, the QoS information of the first service to the operation support system 0SS.
  • the centralized controller further includes:
  • a second receiving module configured to receive QoS information of the first service shared by a centralized controller of another network in the networking.
  • the centralized controller further includes: a module, configured to modify a QoS priority of the first service in the first network according to a service level of the first service, so that a higher service level, a higher QoS priority;
  • the sending module is configured to send the QoS information of the first service to a network node in the first network, so that the network node in the first network is in the first service according to the first service.
  • the QoS priority in a network guarantees the QoS parameters of the first service. The higher the QoS priority of a service, the higher the QoS parameters of the service are guaranteed.
  • the query module Specifically, the querying the service maintenance table is configured to store the QoS information of the first service.
  • the obtaining module is specifically configured to: when the query module queries the service maintenance table, the QoS information of the first service is not stored. Obtaining QoS information of the first service from the operation support system 0SS;
  • the centralized controller further includes:
  • the adding module is configured to add the QoS information of the first service to the service maintenance table as a new entry when determining that the QoS information of the first service is not stored in the service maintenance table.
  • a third aspect of the embodiments of the present invention provides a centralized controller, including:
  • Input device output device and processor
  • the input device is configured to receive, according to operation of the processor, information sent by the network node and other centralized controllers in the networking;
  • the output device is configured to send information to the network node and other centralized controllers in the networking according to the operation of the processor;
  • the processor is configured to perform the following operations:
  • the centralized controller is a centralized controller of the first network, the first network is a subnet of the networking, the networking is composed of multiple subnets, and the first service is in the networking.
  • a network node that is transmitted by the first network where the network node in the first network is a network node that passes when the first service is transmitted in the first network;
  • the processor is further configured to perform the following operations:
  • the QoS information of the first service is obtained from the operation support system 0SS.
  • the processor is further configured to perform the following operations: Receiving QoS information of the first service shared by a centralized controller of another network in the networking.
  • the processor is further configured to perform the following operating:
  • the processor When performing the operation of whether the query stores the QoS information of the first service, the processor specifically performs the following operations:
  • the processor When performing the operation of acquiring the QoS information of the first service to the operation support system 0SS when determining that the QoS information of the first service is not stored, the processor specifically performs the following operations:
  • the processor also performs the following operations:
  • the QoS information of the first service is added as a new entry in the service maintenance table.
  • the embodiment of the present invention has the following advantages:
  • the centralized controller of the first network in the networking receives the service query request for the first service sent by the network node in the first network,
  • the service query request is used to query the QoS information of the first service, where the QoS information includes a QoS parameter and a service level
  • the centralized controller sends the QoS information of the first service to the network node in the first network, so that the The network node in the first network guarantees the QoS parameter of the first service according to the service level, and at the same time, the centralized controller shares the QoS information of the first service to the centralized controller of other networks in the network, so that in other networks
  • the centralized controller sends the QoS information of the first service to the network node of the other network, so that the network node in the other network also guarantees the QoS parameter of the first service according to the service level, so that the centralized control is performed.
  • the sharing of the QoS information of the first service ensures the first service in each network of the entire network.
  • the consistency of the QoS information enables the network nodes of each network in the network to perform service transmission on the first service according to the QoS information, thereby ensuring end-to-end QoS of the service in the entire network.
  • FIG. 1 is a schematic flowchart of a service service quality assurance method according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of another process of a service quality assurance method according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of another process of a service service quality assurance method according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a centralized controller according to an embodiment of the present invention.
  • FIG. 6 is another schematic structural diagram of a centralized controller according to an embodiment of the present invention.
  • FIG. 7 is another schematic structural diagram of a centralized controller according to an embodiment of the present invention.
  • FIG. 8 is another schematic structural diagram of a centralized controller according to an embodiment of the present invention.
  • FIG. 9 is another schematic structural diagram of a centralized controller according to an embodiment of the present invention. detailed description
  • first, second, etc. may be used to describe various services or networks in the embodiments of the present invention, the service or network should not be limited to these terms. These terms are only used to distinguish business or network from each other.
  • the first network may also be referred to as a second network, or a third network, etc. without departing from the scope of the embodiments of the present invention.
  • the first service may also be referred to as a second service, etc. The embodiment of the invention does not limit this.
  • an embodiment of a service quality assurance method in an embodiment of the present invention includes:
  • the centralized controller receives a service query request for the first service that is sent by the network node in the first network, where the service query request is used to query the QoS information of the first service.
  • a plurality of subnets form a networking system, and each subnet is provided with a centralized controller for managing each network node of the network.
  • the first network is a subnet in the network, and the first service is
  • the network node in the first network is a network node that passes through when the first service is transmitted in the first network, and the first service needs to pass through the first network.
  • the network node When one of the network nodes transmits, and the network node does not have the QoS information of the first service, the network node sends a service query request for the first service to the centralized controller of the first network, the service query request For querying QoS information of the first service, the centralized controller of the first network receives a service query request sent by a network node in the first network, where the QoS information includes a QoS parameter and a service level.
  • the QoS parameters include the bandwidth of the transmission, the delay of the transmission, and the packet loss rate of the data.
  • the quality of service can be improved by ensuring the bandwidth of transmission, reducing the delay of transmission, reducing the packet loss rate of data, and delay jitter.
  • the service level is determined by the user when the operator handles the business.
  • the operator will determine the customer's service level according to the specific business handled by the customer. The higher the service level, the more the operator needs to prioritize its service quality.
  • a customer or service with a service level can be called a specific customer or a specific service, and does not have a customer or service registered with the service, that is, if the service quality is not required to be prioritized, the service level can be set to a null value, which can be called Ordinary customers or ordinary business.
  • the high level of service can be customized. Service Level and QoS Parameters These QoS information can be customized when the user handles the service and then recorded in the operator's operational support system 0SS.
  • the centralized controller may be a device that controls the SDN network control layer, and in other networks, as long as the network can be controlled.
  • the device of the forwarding rule of the network node can be used as the centralized controller of the network, and which network device is used as the centralized controller, which can be determined according to the architecture of the specific network and the functions of the network devices in the network, which is not limited herein.
  • the centralized controller sends the QoS information of the first service to a network node in the first network, so that the network node in the first network guarantees the first service according to the service level.
  • QoS parameters
  • the centralized controller After receiving the service query request for the first service sent by the network node in the first network, the centralized controller sends the QoS information of the first service to the network node in the first network according to the service query request, Causing the network node in the first network to ensure the quality according to the service level
  • the QoS parameter of the first service wherein the higher the service level of a service, the more preferentially guarantees the QoS parameters of the service.
  • the technologies for implementing the QoS parameters in the existing QoS technologies include traffic classification, traffic policing, traffic shaping, and interface rate limiting. Congestion management, congestion avoidance, etc., ensuring QoS parameters is to use these QoS technologies to meet the requirements of QoS parameters, and ensuring the QoS parameters of the first service according to the service level is to utilize QoS technology according to the service level of the first service.
  • the QoS parameter of the first service is met, wherein the higher the service level of the first service, the more preferentially the requirements of the QoS parameters are met.
  • the QoS information of the first service may be actively sent to the The other network node in the first network does not need to send a service query request to the centralized controller when the first service passes through other network nodes in the first network; optionally, according to the actual situation of the network, The QoS information of the first service is not actively sent, and only when the network node initiates a service query request for the QoS information of the first service, the QoS information of the first service is sent to the network node that initiated the request, which can avoid The broadcast information causes excessive signaling in the network.
  • the QoS information of the first service may be directly sent to the foregoing Calculating a certain number of network nodes that will pass through the first service transmission process, and sending the first to the other network nodes
  • the QoS information of the service may also be in other ways, which is not limited herein.
  • the centralized controller shares QoS information of the first service to a centralized controller of another network in the networking;
  • the centralized controller After receiving the service query request, the centralized controller also shares the QoS information of the first service to the centralized controller of the other network in the network, and the centralized controller of the other network sends the QoS information of the first service.
  • the network node of the other network is configured to ensure that the network node in the other network guarantees the QoS parameter of the first service according to the service level. The higher the service level of a service, the more preferentially guarantees the QoS parameter of the service.
  • the centralized controller of the other network sets the QoS information of the first service.
  • the timing of sending to the network node in the corresponding network may be different depending on the actual application of each network.
  • the centralized controller of other networks may directly be active when receiving the shared QoS information of the first service.
  • the QoS information of the first service is sent to each network node in the network, and may only be saved without being sent. Only when the network node in the network requests the QoS information of the first service, the first service is sent.
  • the QoS information to the network node that initiated the request may also pre-calculate the network node that the first service will pass when transmitting in the network, and pre-actively send the QoS information of the first service to the calculated first service.
  • the QoS information of the first service is sent to the network node that will pass through, and the QoS information of the first service is delivered, which is determined according to the specific conditions of each network, and is not limited herein.
  • step 103 can also be performed before step 102, which is not limited herein.
  • the centralized controller of the first network in the network receives the service query request for the first service sent by the network node in the first network, where the service query request is used to query the QoS information of the first service, where The QoS information includes a QoS parameter and a service level, and the centralized controller sends the QoS information of the first service to the network node in the first network, so that the network node in the first network guarantees the first service according to the service level.
  • the centralized controller shares the QoS information of the first service to the centralized controller of the other network in the network, so that the centralized controller in the other network sends the QoS information of the first service to the QoS parameter.
  • the network nodes in the other networks also ensure the QoS parameters of the first service according to the service level, so that the QoS information of the first service is shared by the centralized controller, and the entire group is guaranteed.
  • the QoS information is used for service transmission of the first service, thereby ensuring end-to-end QoS of the service in the entire network.
  • the centralized controller of the first network shares the QoS information of the first service to the centralized controller of the other network.
  • the implementation manner is different.
  • the centralized controller of the first network may be used. Broadcasting the QoS information of the first service to other centralized controllers connected thereto, and the other centralized controllers broadcast the QoS information of the first service to the connected centralized controller as well.
  • the QoS information of a service is shared to a wider scope, and finally the QoS information of the first service exists in any of the interconnected centralized controllers of the entire network, so that no matter which network the first service passes through, the network Network nodes can Quickly obtaining the QoS information of the first service from the centralized controller of the network, and the QoS information of the first service saved in the centralized controller of those networks that the first service does not pass may continue to be saved and obtain the first
  • the service may be used when it passes through the network, or may be deleted after the preset condition is reached.
  • the centralized controller of the first network may only share the QoS information of the first service to the next network on the transmission path of the first service, and the next network receives the transmission path of the first service.
  • the QoS information of the first service may be shared with the next network on the transmission path of the first service, and then shared in sequence, and finally the centralized controller of the network on the transmission path of the first service may be There is QoS information of the first service, which is established on the basis that the centralized controller can determine the transmission path of the first service;
  • the medium controller may not actively share the QoS information of the first service, and only when the request of the other centralized controller is received, the QoS information of the first service is shared by the centralized controller that initiates the request, and
  • Network resources are always limited. As long as there is a situation of robbing network resources, there will be requirements for quality of service.
  • the quality of service is relative to the network service. While guaranteeing the service quality of a certain type of service, it may damage the service quality of other services. For example, if the total bandwidth of the network is fixed, if the bandwidth occupied by a certain type of service is more, the bandwidth that other services can use is less, which may affect the use of other services. Therefore, network managers need to rationally plan and allocate network resources according to the characteristics of various services, so that network resources can be efficiently utilized, and the purpose of satisfying the service quality of customers or services with high service levels can be achieved preferentially.
  • QoS priority is required. In each network, the QoS priority of the network traffic transmitted in the network can be determined by QoS technology. In a network, the higher the QoS priority of a service, the more the network will preferentially satisfy the QoS of this service.
  • QoS technologies include traffic classification, traffic policing, traffic shaping, interface rate limiting, congestion management, and congestion avoidance.
  • Traffic classification refers to the use of certain rules to identify packets that meet certain characteristics. It is the premise and basis for distinguishing services from network services. In the QoS classification process, the most important thing is to configure different priorities for different types of packets, that is, assign different QoS priorities to different services. After the packets enter the device, the device will according to its own situation and corresponding rules. Assign or modify various priorities of messages The value of the assigned priority is the QoS priority of the service, and then the device performs the corresponding QoS behavior according to the priority value. The higher the QoS priority of a service, when the service passes through the device. The more the device will prioritize the QoS of the service, that is, the network resources are preferentially allocated to meet the QoS parameters of the service, and then the QoS of the service with low QoS priority is considered.
  • the QoS priority is used to identify the priority of packet transmission generated by the service.
  • various service classification mechanisms and QoS priority allocation systems are various service classification mechanisms and QoS priority allocation systems. These priorities are based on recognized standards and protocols. Generated, reflecting the priority of the message itself. The following are some common QoS priorities, including: 802.1p priority, DSCP priority, IP priority, and EXP priority.
  • the IEEE802.1p priority value has 8 (0-7), 0 has the lowest priority, and 7 has the highest priority.
  • the packet is classified into three types: the label with the priority and the VLAN ID, whose priority value is its own value. The label with only the priority is the VLAN ID. The priority value is 0. The value of the untagged packet; the default priority value is 0. You can also change the new priority. Table 1 below shows the 802. lp priority assignment:
  • the DSCP priority value has 64 (0-63), with 0 being the lowest priority and 63 having the highest priority.
  • the currently defined DSCP has a default DSCP (value is 0); class selector DSCP, defined as backwards compatible with IP precedence, values (8, 16, 24, 32, 40, 48, 56); accelerated forwarding (EF), generally used for low latency Service, recommended value is 46 (101110); Determine Forwarding (AF), define 4 service levels, each service level has 3 descending processes, so 12 DSCP values are used ((10, 12, 14), (18, 20, 22), (26, 28, 30), (34, 36, 38)).
  • Table 2 below provides a description of the DSCP priority assignment:
  • IP priority It consists of 3 bits in the Type of Service (ToS) byte in the IP packet header.
  • the IP priority value has 8 (0-7), 0 has the lowest priority, and 7 has the highest priority.
  • IP priorities 6 and 7 are used for network control communication and are not recommended for users.
  • the service type of the ToS field has not been widely used in existing IP networks. Table 3 below provides a description of the IP precedence assignment:
  • IP precedence It consists of 3 bits in the MPLS header. Its priority value has 8 (0-7), 0 has the lowest priority, and 7 has the highest priority.
  • the value of the IP precedence is automatically copied by default, or it can be set manually by the network administrator on the edge router.
  • the above is a common classification mechanism for several QoS priorities. It can be seen that different classification mechanisms are used, not only the classification criteria are different, for example, the keywords used are different, and the priority levels are also different, for example, 802. lp There are 8 levels of priority, and there are 64 levels of DSCP priority. This results in a network with different service classification mechanisms and QoS guarantee mechanisms. This service may have higher QoS priority in the previous network. Level, in the latter network, it becomes a lower QoS priority, it is difficult to guarantee the end-to-end QoS of the service in the entire networking network, and the present invention uses the centralized controller to share the QoS information of a service into the network.
  • the centralized controllers of the networks are then delivered to the network nodes in the networking, so that each network node guarantees the QoS parameters of the services according to the level of the unified service level, thereby realizing the unification of the QoS information in the entire network. Guarantee end-to-end QoS of the service.
  • each network can be divided into three categories according to different network functions.
  • the access network, the aggregation network and the core network, the access network directly connects to the user, the network service accesses the aggregation network through the access network, and then the aggregation network outputs the output to the core network for processing, and then transmits through the aggregation network and the access network. Go to the destination address, which constitutes a path for network traffic transmission.
  • Each network in the network can use different network construction mechanisms.
  • the access network can be a PON network
  • the aggregation network can be a PIN network.
  • the centralized controller in the first network sends the QoS information of the first service to the network node of the first network and shares it to the centralized controller of the other network, and the source of the QoS information of the first service may have Two.
  • the information of the first service is not included in each network of the entire network, and the first The centralized controller in the network can obtain the QoS information of the first service from the operator's operation support system 0SS.
  • the first service When the first network is not the access network, the first service must first pass through the access network, and the QoS information of the first service exists in the centralized controller of the access network, then the first When the service is transmitted to the first network, according to the centralized controller that the centralized controller shares the QoS information of the first service to other networks in the networking, the centralized controller in the first network can receive other networks. The shared QoS information of the first service.
  • the first network is an access network:
  • another embodiment of the service quality assurance method in the embodiment of the present invention includes: 201.
  • the centralized controller receives a service query request for a first service sent by a network node in a first network, where the service query request is performed. Querying QoS information of the first service;
  • the network node When the first service needs to be transmitted through a network node in the access network, and the network node does not have the QoS information of the first service, the network node sends the first service to the centralized controller of the access network.
  • a service query request the service query request is used to query QoS information of the first service
  • the centralized controller of the first network receives a service query request sent by a network node in the first network, where the QoS information includes a QoS parameter and Business level.
  • the service query request may include a physical address MAC of the terminal initiated by the first service, where the terminal MAC may be used as the identifier information registered by the client or the service at the operator, and used as the query with the client or the service.
  • the identifier of the information recorded by the operator; It can be understood that if the same user customizes services of different service levels, the customer may also register other identification information to determine the service level of different services when the operator registers, for example, in addition to using the terminal MAC as the identification information, The sink address of a certain service can be used as the identification information at the same time. The sink address identifies the destination address of a service.
  • the terminal MAC and the sink address can be used as the identification information of a service to determine the service level of a certain service.
  • the service level of all services initiated by the user corresponding to the MAC address of the terminal is determined.
  • other identification information may also be used as the identifier of the service level at the time of registration, thereby determining the required service.
  • the specific identification information can be determined according to the actual needs, which is not limited here.
  • the priority of the uplink service in the PON network is marked on the ONU and the like by combining the virtual local area network (VLAN) planning, and when the customized service is a special customer or a special service, If the corresponding local area network identifier vlanID is a special customer or a special service, the network node may first determine whether the first service is a special customer initiated or a specific service, and record the judgment result of the service, and define the judgment result as a service.
  • Service FLAG the service query request may also include a service identifier of the service.
  • the service query request may further include a sink address of the first service, where the destination of the service transmission is indicated.
  • the service query request may further include a data transmission logical channel number (DTLC-ID) of the first service, to indicate, by which network node the first service is transmitted.
  • DTLC-ID data transmission logical channel number
  • the service query request may further include the first service in the first network.
  • the service query request may also include other information about QoS, which is not limited herein.
  • the centralized controller may be a device that controls the SDN network control layer, such as an SDN controller, and in other networks, as long as The device that controls the forwarding rules of each network node of the network can be used as the centralized controller of the network, and which network device is used as the centralized controller.
  • the centralized controller queries whether the QoS information of the first service is stored. After the centralized controller receives the service query request for the first service, whether the query stores the first QoS information for a service.
  • a service maintenance table may be stored in the centralized controller, where the service maintenance table is a flow table for recording service information in the network, where the DTLC-ID, terminal MAC, sink address, and QoS priority of the service are recorded in the flow table.
  • Level, Service FLAG, service level, and QoS parameters where the service level is the service level that the customer handles at the operator, and the QoS parameter is the QoS parameter that the operator promises to guarantee to the user.
  • the centralized controller can query whether the QoS information of the first service is stored in the service maintenance table by using the terminal MAC in the service query request.
  • the centralized controller acquires QoS information of the first service from an operation support system OSS.
  • the centralized controller queries whether the QoS information of the first service is stored. If the QoS information of the first service is not stored, the centralized controller acquires the QoS information of the first service from the operation support system 0SS, and the obtained QoS information includes Service level and QoS parameters.
  • the centralized controller obtains the QoS information of the first service from the 0SS.
  • the specific process may be: the centralized controller sends the terminal MAC carried in the service query request to the 0SS, and it is understood that the client handles the service at the operator.
  • the terminal MAC that initiates the service is used as the identification information of the service
  • the 0SS queries the corresponding service level and the QoS parameter according to the terminal MAC and sends the information to the centralized controller.
  • the service level of different types of services may be determined according to different identification information of the service determined by the customer when the service is performed by the operator, for example, As the identification information of the service, the terminal MAC may also use the terminal MAC as the identification information of the service together with the service address of the service, and may also set other identification information to determine a certain type or a certain type of service, and correspondingly, the centralized controller
  • the service query request sent to the 0SS may carry other identifier information in addition to the terminal MAC. For example, the service query request sent by the network node may be forwarded directly, and the 0SS may ignore the useless information in the service query request. Only the identification information determined when the customer handles the business is queried.
  • the centralized controller can determine that the first service is an ordinary customer or a common service by using a service identifier in the service query request.
  • the 0SS queries the QoS, and directly sets the service level and QoS parameters corresponding to the service to null. 204.
  • the centralized controller sends QoS information of the first service to a network node in the first network.
  • the centralized controller After acquiring the QoS information of the first service, the centralized controller sends the QoS information of the first service to the network node in the first network, so that the network node in the first network is guaranteed according to the service level.
  • the QoS parameter of the first service the higher the service level in the QoS information of one service, the more the QoS parameters of the service are guaranteed in preference to other services.
  • the network node may send the first service to the edge node of the access network according to the QoS parameter and the service level. Transfer to the aggregation network.
  • the network node ensures the QoS parameter of the first service according to the service level, and the higher the service level, the more preferentially the specific implementation manner of the QoS parameter of the service is ensured.
  • the specific controller may be: After the service level of the service, the QoS priority of the first service in the first network may be modified according to the service level, so that the higher the service level, the higher the QoS priority, because the QoS priority according to the service is in the network.
  • the QoS parameters are guaranteed in the order of the QoS, and the principle that the higher the service level is, the higher the QoS parameters of the service are guaranteed. It is understood that, in addition to this, the QoS priority of each network may not be used.
  • the QoS parameters are guaranteed according to the QoS priority, that is, the QoS technology is used.
  • the QoS priority satisfies the requirements of its QoS parameters.
  • the operator's 0SS is located in the access network, and the service level of the service is recorded in the 0SS. Therefore, in general, the QoS priority in the access network has been set to satisfy the service level. If the value is high, the QoS priority of the corresponding service is higher. At this time, in the access network, the centralized controller may not modify the QoS priority. Of course, if the QoS priority in the access network is The state is not satisfied, or the state is expected to be more accurate in each network, and may be set to modify the QoS priority according to the state in the access network, which is not limited herein.
  • the centralized controller may update the service maintenance table according to the information carried in the service query request and the obtained QoS information, and determine that the service maintenance table does not store the service maintenance table.
  • the QoS information of the first service is added to the service maintenance table, the QoS information of the first service is added as a new entry.
  • the centralized controller shares QoS information of the first service to a centralized controller of another network in the networking.
  • the centralized controller After the centralized controller obtains the QoS information of the first service, the QoS information of the first service is shared with the centralized controller of the other network in the network, and the centralized controller of the other network will use the first service.
  • the QoS information is sent to the network node of the other network, so that the network node in the other network guarantees the QoS parameter of the first service according to the service level, wherein the higher the service level of one service, the higher the priority of the service is guaranteed. parameter.
  • the centralized controller in the first network specifically shares the QoS information of the first service to which centralized controller in the networking, and needs to be determined according to the connection manner of each centralized controller, for example, in the networking.
  • Each centralized controller is connected to each other, or the centralized controller of the access network is connected to the centralized controller of all other networks.
  • the network is in the network.
  • the centralized controllers of all other networks will receive the QoS information of the first service, and if only according to the network transmission sequence-connection, the centralized controllers in each network will only receive the concentration in the network connected to it.
  • the QoS information shared by the controller is shared by the QoS information to the next network.
  • the centralized controller of the access network only shares the QoS information of the first service to the centralized controller of the aggregation network, which is not limited herein. .
  • the service maintenance table of the centralized controller may also be related to the first service at the same time.
  • Other information (such as terminal MAC, sink address, etc.) is shared to other centralized controllers at the same time.
  • the centralized controller when the first network is the access network, after receiving the service query request, the centralized controller first queries whether the QoS information of the service is stored in the service maintenance table, and if not, obtains the service from the 0SS.
  • the QoS information ensures the accuracy of the acquired QoS information.
  • the QoS priority of the service in the current network can be modified according to the service level, and the QoS priority system in each network is used to implement the service. The higher the level, the higher the priority is to ensure the corresponding service. The purpose of the QoS parameters.
  • the centralized controller of the first network queries the service maintenance table to store the QoS information of the first service, If the QoS information of the first service is stored in the centralized controller of the first network, the QoS information of the first service is stored in the centralized controller of the first network.
  • the QoS information of the first service is shared with the centralized controller of the other network, and the network node in the first network may only lose the QoS information of the first service delivered. In this case, Only step 204 is performed, which is not limited herein.
  • the first network is not an access network:
  • another embodiment of the service quality assurance method in the embodiment of the present invention includes: It can be understood that after the QoS information of the first service shared by other centralized controllers received by the centralized controller, there are multiple processing manners.
  • the QoS information of the first service is actively delivered, and if the processing mode is adopted, the centralized controller in the access network acquires the QoS information of the first service and shares the other centralized control in the networking.
  • the other centralized controllers actively release the QoS information of the first service to ensure the unification of the QoS information of the entire network.
  • other centralized controllers receive the QoS information of the first service.
  • the network node After being shared, the network node is not automatically sent to the network node, and the information is sent to the network node that initiated the request only when receiving the request of the network node for the QoS information of the first service, which is described in this embodiment. happensing.
  • the centralized controller receives a service query request for the first service that is sent by the network node in the first network, where the service query request is used to query the QoS information of the first service.
  • the centralized controller of the first network receives a service query request for the first service sent by the network node in the first network, where the service query request is used to query QoS information of the first service, where the QoS information includes a QoS parameter and Business level.
  • the service query request may include a physical address MAC of the terminal initiated by the first service, where the terminal MAC may be used as the identification information registered by the client or the service at the operator, and is used to query and operate the service with the client or service. Information recorded by the business office.
  • the service query request may further include a sink address of the first service, where the destination of the service transmission is indicated.
  • the service query request may further include a data transmission logical channel of the first service.
  • the number (DTLC-ID) is used to indicate which network node the first service is transmitted through.
  • the service query request may further include a QoS priority of the first service in the first network.
  • the service query request may further include a service identifier of the service.
  • the service query request may also include other information about QoS, which is not limited herein.
  • the centralized controller may be a device that controls the SDN network control layer, such as an SDN controller, and in other networks, as long as The device that controls the forwarding rules of each network node of the network can be used as the centralized controller of the network, and which network device is used as the centralized controller.
  • the centralized controller receives QoS information of the first service sent by a centralized controller of another network in the networking.
  • the centralized controller can receive the QoS information of the first service sent by the centralized controllers of other networks in the network.
  • step 302 can also be performed before step 301, which is not limited herein.
  • the centralized controller sends QoS information of the first service to a network node in the first network.
  • the centralized controller After receiving the QoS information of the first service and the service query request sent by the network node in the first network, the centralized controller sends the QoS information of the first service to the network node in the first network, so that the first network is in the first network.
  • the network node guarantees the QoS parameter of the first service according to the service level, and the QoS information includes a service level and a QoS parameter, and the higher the service level in the QoS information of one service, the more the service is guaranteed in preference to other services.
  • QoS parameters are examples of the QoS parameters.
  • Step 301 is not required.
  • the network node does not need to send a service query request, and directly according to the stored QoS information.
  • This service can perform QoS.
  • the network node may send the first service to the edge node of the first network according to the QoS parameter and the service level. Transfer to the next network.
  • the network node ensures the QoS parameter of the first service according to the service level.
  • the higher the service registration the more preferentially the specific implementation manner of the QoS parameter of the service is ensured.
  • the specific controller may be: After the service level of the service, the QoS priority of the first service in the first network may be modified according to the service level, so that the higher the service level, the higher the QoS priority, because the QoS priority according to the service is in the network.
  • the QoS parameters are guaranteed in the order of the QoS, and the principle that the higher the service level is, the higher the QoS parameters of the service are guaranteed. It is understood that, in addition to this, the QoS priority of each network may not be used.
  • the service level can be the highest according to the service level.
  • the QoS priority is modified by the level and the total number of QoS priorities of the current network.
  • the service level of the first service is 2, the highest service level is 4, and the lowest level is 1.
  • grade High the principle of the higher priority QoS, QoS priority does not necessarily need to be an integer, in some cases, it may be QoS priority for the intake calculated The line is rounded up and then modified. There are also other ways to modify the QoS priority, which is not limited here.
  • the QoS parameter according to the Qos priority is the requirement that the QoS technology meets its QoS parameters according to the QoS priority.
  • the centralized controller modifies the QoS priority of the service in the first network according to the service level
  • the QoS information sent by the centralized controller to the network node of the first network carries the modified QoS priority.
  • Level so that the network node guarantees the QoS parameters of the service according to the modified QoS priority.
  • the centralized controller may update the service maintenance table according to the information carried in the service query request and the QoS information, and add the first service to the service maintenance table.
  • the QoS information is used as a new entry.
  • the centralized controller shares the QoS information of the first service to a centralized controller of another network in the networking.
  • the centralized controller After the centralized controller obtains the QoS information of the first service, the QoS information of the first service is shared with the centralized controller of the other network in the network, and the centralized controller of the other network will use the first service.
  • the QoS information is sent to the network nodes of other networks such that the network nodes in the other networks guarantee the QoS parameters of the first service according to the service level.
  • the service maintenance table of the centralized controller may also be related to the first service at the same time.
  • Other information (such as terminal MAC, sink address, etc.) is shared to other centralized controllers at the same time.
  • the centralized controller can receive the QoS information of the first service sent by the centralized controller of the other network in the network, so that each centralized controller does not need to obtain the QoS information of the first service from the 0SS, simplifying The process improves the processing efficiency of each centralized controller in the QoS guarantee process.
  • the P0N network is used as the access network
  • the PTN network is used as the aggregation network
  • Access to the core network set the centralized controller in the PON network to be PON-C
  • the centralized controller in the PTN network is PTN-C
  • the centralized controller in the core network is CN-C
  • each centralized controller follows the access.
  • the order from the network to the aggregation network to the core network is sequentially connected.
  • FIG. 4 is a schematic structural diagram of the networking network.
  • Passive Optical Network refers to optical distribution network (Optical)
  • ODN A network that does not contain any electronic devices and electronic power supplies. Its ODN consists entirely of passive components such as optical splitters, eliminating the need for relatively expensive active electronics.
  • the PON consists of an Optical Line Terminal (OLT), a Splitter and an Optical Network Unit (ONU), and uses a tree topology.
  • OLT is placed at the central office, and the connection of control and control channels is provided, with real-time monitoring, management and maintenance functions.
  • the ONU is placed on the user side, and the OLT and ONU are connected by a passive photo combiner/splitter.
  • the mainstream Ethernet Passive Optical Network (EPON) and Gigabit Passive Optical Network (GPON) technologies in PON systems follow the QoS technology in IP networks.
  • the network architecture uses OLT optical line terminals and ONU optical network units. In the two-level system, the OLT and the ONU have corresponding QoS functions to ensure full QoS.
  • the system uses the data link layer priority (802.p) to identify the quality of service levels for various services.
  • the priority of the uplink service is determined by the combination of the network virtual local area network (VLAN) and the terminal on the ONU.
  • the priority of the downlink service is not modified in the OLT and the following devices.
  • the default trust is the priority of the upper-layer device.
  • the OLT is the OLT. It is a network node in a PON network.
  • the Packet Transport Network is a next-generation transport platform for the basic features of packet-oriented support transport platforms.
  • PTN uses IP as the core, and sets the service layer of external representation through Ethernet and the optical transmission medium (L1 or Ethernet physical layer) such as WDM at one level to provide Ethernet frame and MPLS (IP) for L3/L2 and even L1 users.
  • L1 or Ethernet physical layer such as WDM
  • IP Ethernet frame and MPLS
  • the QoS technology needs to select the service model according to the characteristics of the user side and the network side, and the MPLS Diff-Serv model can be used on the user side.
  • Table 4 below shows a typical PTN bearer service QoS allocation table.
  • the service enters the network by the user side.
  • the Ingress node uses the MPLS Diff-Serv model to label the data packets ( EXP ).
  • the Transit node then performs different according to the priority. Forward processing.
  • the networking of this embodiment uses the SDN architecture, and controls and schedules network nodes in each network according to the centralized controller of each network in the SDN architecture.
  • SDN Software Defined Network
  • SDN is a new type of network architecture that provides a means of implementing applications that interact with network devices and resource control software and operate them. It separates the control layer of the router and is implemented by a separate controller using software programming. This management and control idea of logical control and data forwarding is the core idea of SDN technology, which makes the whole network programmable, users can customize their own network policies, and use the controller to define the forwarding strategy to make the network work more flexible.
  • the SDN architecture is mainly divided into infrastructure layer, control layer and application layer.
  • the infrastructure layer represents the underlying forwarding device of the network and contains a specific forwarding plane abstraction (such as the matching field design of the flow table in the OpenFlow switch).
  • the middle control layer centrally maintains network status and obtains underlying infrastructure information through the southbound interface (control and data plane interfaces such as OpenFlow) while providing an expandable northbound interface to the application layer.
  • the application layer uses the northbound interface of the control layer to implement applications with different functions according to different application requirements of the network. With this software model, network managers can configure, manage, and optimize underlying network resources through a dynamic SDN application for a flexible and controllable network.
  • the MAC address of the user terminal that initiates the first service in the access network is 0xala2a3, the service level of the first service is 2, the highest service level is 4, and the lowest service level is 0, that is, the ordinary customer or the ordinary Service, customized QoS parameters have a bandwidth of 3M, a packet loss rate of less than 0.1%, a delay of less than 140ms, and a jitter of less than 50ms.
  • the network node OLT in the PON network determines that the first service is a special client initiated or a specific service by using the vlanID, and marks the Service FLAG as 1, indicating that it is Special customer/special business;
  • the network node OLT initiates a service query request for the first service to the centralized controller PON-C in the PON network, where the service query request includes a logical link identifier (LLID X 0x0001) of the first service.
  • Terminal MAC (0xala2a3), sink address (0xblb2b3), 802.1p (4), and Service FLAG (1);
  • the PON-C After receiving the service query request, the PON-C queries the service maintenance table, and does not find the record information that matches the LLID (0x0001), the terminal MAC (0xala2a3), and the sink address (0xblb2b3), and the PON-C requests the OSS to obtain the service.
  • QoS information including service level and QoS parameters, including the service terminal MAC (0xala2a3) in the request;
  • the identifier included in the request may be determined according to the identification information of the service signed by the client and the operator, and the request only includes the terminal MAC, indicating that all the services sent by the terminal MAC are determined. All have the same QoS information, and the request may also include a sink address, and the QoS information of the service from the terminal MAC to the sink address is queried, and other identification information may be included to determine one or some classes.
  • the QoS information of the service is not limited here.
  • the OSS replies the QoS information of the terminal service with the MAC address 0xala2a3 to the PON-C.
  • the reply includes the terminal MAC (0xala2a3), the service level (2), and the QoS parameters (bandwidth 3M, packet loss rate less than 0.1%, delay less than 140ms, jitter less than 50ms);
  • the PON-C After receiving the QoS information of the reply of the OSS, the PON-C adds a new entry in the service maintenance table, which includes the LLID (0x0001), the terminal MAC (0xala2a3), the sink address (0xblb2b3), and the 802.1p of the new service ( 3), Service FLAG (1) and the service level (2) and QoS parameters of the service (the bandwidth 3M, the packet loss rate is less than 0.1%, the delay is less than 140ms, and the jitter is less than 50ms);
  • the PON-C sends the QoS information to the network node OLT, so that the OLT sends the first service to the edge node of the PON network according to the QoS parameter in the QoS information and transmits the QoS to the PTN network.
  • the QoS priority of the network is consistent with the higher the service level and the higher the QoS priority, the QoS priority may not be modified in the PON network, and the OLT may guarantee the QoS priority of the first service in the PON network.
  • the QoS parameter of the first service it can be understood that the network node sends the first service to another network according to the QoS information.
  • the network node is related to the sink address of the first service and the routing algorithm of each network node, and is independent of the QoS information.
  • the PON network serves as the access network
  • the PTN network serves as the aggregation network
  • the first service needs to go through the path.
  • the first service needs to be sent to the edge node of the P0N network and transmitted to the PTN network, and then transmitted to the PTN network.
  • the PON-C shares the QoS information of the first service to which centralized controller or the centralized controller, and is not related to the network node to which the first service is sent, and only relates to the connection relationship between the centralized controllers in the networking.
  • the centralized controller P0N-C of the P0N network is connected to the centralized control PTN-C of the PTN network.
  • P0N-C shares the QoS information of the first service to the PTN-C connected thereto;
  • the PTN-C After receiving the QoS information of the first service, the PTN-C updates its own service maintenance table and shares the QoS information of the first service to the CN-C.
  • the PTN-C adds a new entry in the service maintenance table, and the entry includes Source address (0xala2a3), sink address (0xblb2b3), Service FLAG (1), service level (2), and QoS parameters (bandwidth 3M, packet loss rate less than 0.1%, delay less than 140ms, jitter less than 50ms).
  • the PTN-C receives the QoS information of the first service, according to the actual setting of the network, there are different processing situations, and one of them is a QoS information that can share the first service and is connected thereto.
  • the other centralized controller s, and actively send the QoS information of the first service to each network node in the PTN network. If this is the case, the network nodes in each network in the network complete the QoS information unification;
  • the second case is described below, that is, the PTN-C does not actively send the QoS information of the first service to each network node in the PTN network, only when the network node in the PTN network receives the first service.
  • the QoS request is made, the QoS information of the first service is sent to the network node that initiated the request:
  • the network node in the PTN initiates a service query request to the PTN-C, where the service query request includes the initial value of the QoS priority EXP of the first service in the PTN network is 2;
  • the network node in the PTN network guarantees the QoS parameter of the first service according to the value of the QoS priority EXP, and transmits the first service to the edge node of the PTN network to enter the CN network;
  • the service arrives in the CN network.
  • the processing flow is similar to that in the PTN network. First, the service maintenance table is updated and the entries are forwarded. Then, the QoS priority is modified according to the service level, and the modified QoS information is sent, so that the nodes in the network are pressed. The revised request is forwarded.
  • the foregoing process is a process when the service is first initiated. If the service is not initiated for the first time, the centralized controller PON-C of the access network PON already has the QoS information of the first service, and then receives the service query. After the request, the QoS information of the first service is no longer needed to be obtained from the OSS.
  • the specific process is as follows:
  • the OLT After receiving the first service, the OLT determines whether the first service is a special customer initiated or a specific service through the vlanID, and marks the Service FLAG as 1, indicating that it is a special client/special service;
  • the network node OLT initiates a service query request for the first service to the centralized controller PON-C in the PON network, where the service query request includes the LLID (0x0001), the terminal MAC (0xala2a3), and the sink address of the first service. ( 0xblb2b3 ), 802. lp ( 4 ), and Service FLAG ( 1 );
  • the PON-C After receiving the service query request, the PON-C queries the service maintenance table and finds the record information that matches the LLID (0x0001), the terminal MAC (0xala2a3), and the sink address (0xblb2b3), indicating that the first service has been completed in the network. Uniform mapping of QoS information, PON-C directly replies to the QoS information of the first service in the service maintenance table to 0LT;
  • the PTN edge network node After the service arrives at the PTN, the PTN edge network node retains the flow table of the service delivered by the PTN-C, and the edge network node directly forwards the information according to the flow table information.
  • the CN post-processing process is the same as that in the PTN.
  • the edge node forwards the flow table information of the service according to the reservation, and quickly and effectively guarantees the end-to-end QoS requirement of the service.
  • an embodiment of the centralized controller in the embodiment of the present invention includes:
  • the first receiving module 501 is configured to receive a service query request for the first service sent by the network node in the first network, where the service query request is used to query the quality of service QoS information of the first service, where the QoS information is And including the QoS parameter and the service level, where the centralized controller is a centralized controller of the first network, the first network is a subnet of the networking, and the networking is composed of multiple subnets, where the A service is a service that is transmitted through the first network in the networking, and the network node in the first network is a network node that is used when the first service is transmitted in the first network.
  • the sending module 502 is configured to send the QoS information of the first service to the network node in the first network, so that the network node in the first network guarantees the first service according to the service level.
  • QoS parameters wherein the higher the service level of a service, the higher the priority is to ensure the QoS parameters of the service;
  • a sharing module 503 configured to share QoS information of the first service to a centralized controller of other networks in the networking, so that network nodes in other networks ensure QoS of the first service according to the service level. parameter.
  • the first receiving module 501 of the first network in the network receives the service query request for the first service sent by the network node in the first network, where the service query request is used to query the QoS information of the first service.
  • the QoS information includes the QoS parameter and the service level, and the sending module 502 sends the QoS information of the first service to the network node in the first network, so that the network node in the first network guarantees the first service according to the service level.
  • the QoS parameter at the same time, the sharing module 503 shares the QoS information of the first service to the centralized controller of the other network in the network, so that the centralized controller in the other network sends the QoS information of the first service.
  • the network node in the other network also guarantees the QoS parameter of the first service according to the service level, so that the sharing of the QoS information of the first service by the centralized controller ensures that the entire The consistency of the QoS information of the first service in each network of the network, so that the network nodes of each network in the network are For service transmission according to the QoS information of the first service, thus ensuring that the entire business end QoS networking.
  • the centralized controller may first query whether the QoS information of the first service is stored.
  • the centralized controller may first query whether the QoS information of the first service is stored.
  • the first receiving module 601 is configured to receive a service query request for the first service that is sent by the network node in the first network, where the service query request is used to query the quality of service QoS information of the first service, where the QoS information is The QoS parameter and the service level are included, the centralized controller is a centralized controller of the first network, the first network is a subnet of the networking, and the networking is composed of multiple subnets, the first The service is a service that is transmitted in the network through the first network, and the network node in the first network is a network node that is used when the first service is transmitted in the first network. Point
  • the sending module 602 is configured to send the QoS information of the first service to a network node in the first network, so that the network node in the first network guarantees the first service according to the service level.
  • QoS parameters wherein the higher the service level of a service, the higher the priority is to ensure the QoS parameters of the service;
  • a sharing module 603 configured to share QoS information of the first service to a centralized controller of another network in the networking, so that network nodes in other networks ensure QoS of the first service according to the service level.
  • the centralized controller further includes:
  • the query module 604 is configured to query whether the QoS information of the first service is stored, and the obtaining module 605 is configured to: when the query module 604 queries the QoS information that the first service is not stored, to the operation support system 0SS Obtaining QoS information of the first service.
  • the obtaining module 605 obtains the QoS information of the first service from the 0SS, and ensures the accuracy of the obtained QoS information.
  • the obtaining module 605 obtains the QoS information of the first service from the 0SS.
  • the centralized controller may also receive the QoS information of the first service shared by other centralized controllers in the network.
  • FIG. 7 is another embodiment of the centralized controller in the embodiment of the present invention, including: a first receiving module 701, configured to receive a service query request for a first service sent by a network node in a first network, where the service query request is used Querying the quality of service QoS information of the first service, the QoS information includes a QoS parameter and a service level, the centralized controller is a centralized controller of the first network, and the first network is a network The subnet, the networking is composed of a plurality of subnets, the first service is a service that is transmitted in the networking through the first network, and the network node in the first network is the first a network node through which traffic travels in the first network;
  • the sending module 702 is configured to send the QoS information of the first service to a network node in the first network, so that the network node in the first network guarantees the first service according to the service level.
  • QoS parameters wherein the higher the service level of a service, the higher the priority is to ensure the QoS parameters of the service
  • a sharing module 703, configured to share QoS information of the first service to a centralized controller of another network in the networking, so that network nodes in other networks ensure QoS of the first service according to the service level. parameter;
  • the centralized controller also includes:
  • the query module 704 is configured to query whether the QoS information of the first service is stored, and the obtaining module 705 is configured to: when the query module 704 queries the QoS information that the first service is not stored, to the operation support system 0SS Obtaining QoS information of the first service;
  • the centralized controller further includes:
  • the second receiving module 706 is configured to receive QoS information of the first service shared by a centralized controller of another network in the networking.
  • the second receiving module 706 can receive the QoS information of the first service that is shared by the centralized controllers of other networks in the network, and does not need to obtain the QoS information of the first service from the 0SS, which simplifies obtaining The process of QoS information improves processing efficiency.
  • the QoS information of the first service is sent to the network node, so that the network node guarantees the QoS parameter of the first service according to the service level.
  • the centralized controller may modify the first service in each network according to the service level. QoS priority, so that the network node guarantees the QoS parameters of the first service according to the QoS priority, and the network node ensures the QoS parameters of the first service according to the service level.
  • the embodiment of the present invention includes:
  • the first receiving module 801 is configured to receive a service query request for the first service sent by the network node in the first network, where the service query request is used to query the quality of service QoS information of the first service, where the QoS information is The QoS parameter and the service level are included, the centralized controller is a centralized controller of the first network, the first network is a subnet of the networking, and the networking is composed of multiple subnets, the first The service is a service that is transmitted through the first network in the networking, and the network node in the first network is a network node that passes when the first service is transmitted in the first network;
  • the sending module 802 is configured to send the QoS information of the first service to a network node in the first network, so that the network node in the first network guarantees the first service according to the service level.
  • QoS parameters where the higher the service level of a service, the higher the priority is to guarantee the QoS of the service. parameter;
  • a sharing module 803 configured to share QoS information of the first service to a centralized controller of another network in the networking, so that network nodes in other networks ensure QoS of the first service according to the service level.
  • the centralized controller also includes:
  • the query module 804 is configured to query whether the QoS information of the first service is stored.
  • the obtaining module 805 is configured to: when the query module 804 queries the QoS information that the first service is not stored, acquire the QoS information of the first service from the operation support system 0SS;
  • the centralized controller also includes:
  • the second receiving module 806 is configured to receive QoS information of the first service shared by a centralized controller of another network in the networking.
  • the centralized controller further includes:
  • a modifying module 807 configured to modify a QoS priority of the first service in the first network according to a service level of the first service, so that a higher service level, a higher QoS priority;
  • the sending module 802 is specifically configured to: send the QoS information of the first service to a network node in the first network, so that the network node in the first network is in the first service according to the first service.
  • the QoS priority in the first network guarantees the QoS parameter of the first service, where the higher the QoS priority of a service, the more preferentially guarantees the QoS parameter of the service;
  • the querying module 804 is specifically configured to: query whether the QoS information of the first service is stored in the service maintenance table;
  • the obtaining module 805 is specifically configured to: when the querying module 804 queries the service maintenance table that the QoS information of the first service is not stored, obtain the QoS information of the first service from the operation support system 0SS;
  • the centralized controller can also include:
  • the adding module 808 is configured to: when it is determined that the first service is not stored in the service maintenance table
  • the QoS information of the first service is added as a new entry in the service maintenance table.
  • the modification module 807 modifies the QoS priority of the first service according to the service level, and uses the QoS priority to ensure the QoS parameter in each network, so that the higher the service level, the higher the priority is to ensure the QoS parameter corresponding to the service. the goal of.
  • the centralized controller in the embodiment of the present invention is described above from the perspective of a unitized functional entity.
  • the centralized controller in the embodiment of the present invention is described from the perspective of hardware processing. Referring to FIG. 9, in the embodiment of the present invention, Another embodiment of the centralized controller 900 includes:
  • the input device 901, the output device 902, and the processor 903 (wherein the number of processors 903 in the centralized controller 900 may be one or more, and one processor 903 is exemplified in Fig. 9).
  • the centralized controller may further include a memory 904.
  • the input device 901, the output device 902, the processor 903, and the memory 904 may be connected by a bus or other manner, wherein Connection is an example.
  • the input device 901 is configured to receive information sent by the network node and other centralized controllers in the networking according to the operation of the processor 903.
  • the output device 902 is configured to send information to the network node and other centralized controllers in the network according to the operation of the processor 903;
  • the processor 903 is configured to: receive a service query request for the first service, sent by the network node in the first network, by using the operation instruction stored in the memory 904, where the service query request is used to query the first
  • the QoS information of the service includes a QoS parameter and a service level
  • the centralized controller is a centralized controller of the first network
  • the first network is a subnet of the networking
  • the network is composed of a plurality of subnets, where the first service is a service that is transmitted through the first network in the networking, and the network node in the first network is the first service in the first a network node that passes through the network during transmission;
  • the processor 903 is further configured to perform the following operations:
  • the processor 903 is further configured to: receive QoS information of the first service shared by a centralized controller of another network in the networking; in some embodiments of the present invention The processor 903 is further configured to perform the following operations:
  • the processor 903 is specifically configured to: query whether the QoS information of the first service is stored in the service maintenance table;
  • the processor 903 When performing the operation of acquiring the QoS information of the first service to the operation support system 0SS when determining that the QoS information of the first service is not stored, the processor 903 specifically performs the following operations:
  • the processor 903 is further configured to perform the following operations:
  • the QoS information of the first service is added as a new entry in the service maintenance table.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct connection or communication connection shown or discussed may be an indirect engagement or communication connection through some interface, device or unit, and may be in electrical, mechanical or other form.
  • the components displayed by the unit may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

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Abstract

本发明实施例公开了一种业务服务质量保证方法和集中控制器,用于在组网网络中,保证业务端到端的QoS。本发明实施例方法包括:组网中第一网络的集中控制器接收第一网络中的网络节点发送的对第一业务的业务查询请求,该业务查询请求用于查询该第一业务的QoS信息,该QoS信息包括QoS参数以及业务等级,该集中控制器将该第一业务的QoS信息发送给该第一网络中的网络节点,使得该第一网络中的网络节点按照该业务等级保证第一业务的QoS参数,并且将该第一业务的QoS信息共享给该组网中其他网络的集中控制器,其他网络中的集中控制器会将该第一业务的QoS信息下发到其他网络的网络节点中,使得其他网络中的网络节点也按照该业务等级保证该第一业务的QoS参数。

Description

一种业务服务质量保证方法与集中控制器
技术领域
本发明涉及通讯领域, 尤其涉及一种业务服务质量保证方法与集中控制 器。 背景技术
随着 Internet网络规模和用户数量的迅猛发展, Internet上的业务种类也与 日倶增, 这使得新一代网络应具有保证服务质量( Quality of Service, QoS )传 输多业务类型的能力, 即要求以端对端的方式对数据、语音、 视频进行实时高 效地混合或并发传输。 从商业运营考虑, 在一个可以对 QoS进行有效控制、 监测的网络上,运营商不仅可以通过开放高增值业务提高竟争,还可以针对不 同用户群分别制定运营策略。这样既能满足不同用户和不同业务的 QoS, 同时 也能提高网络资源的利用率, 从而扩大市场渗透率。
目前, 在不同的网络中釆用的是不同的业务分类基站和 QoS保证机制, 例如, 在以无源光网络( Passive Optical Network, PON ) 为接入网, 接入分组 传送网( Packet Transport Network, PTN )的组网网络中,在有业务产生时, PON 会按照 PON的 QoS策略对该业务进行分类并标识, 当该业务到达 PTN时, 之前业务在 PON中的分类及标识信息被屏蔽,此时 PTN中的网络节点会根据 PTN自己的 QoS策略再对该业务进行标识。
但是,运营商最关心的是网络如何保证端到端的 QoS, 因为终端用户所体 验到是端到端的业务的服务质量。 随着组网和承载业务的复杂化或扩大化,仅 仅基于单一网络的 QoS 已无法满足对某些特定客户或特定产业定制带宽的需 求。 不同网络中 (例如 PON和 PTN中)釆用的是各自不同的业务分类机制和 QoS保证机制, 即同一业务在不同网络中的优先级是不一致的,难以保证该业 务从端到端的传输过程中在整个组网网络中的 QoS。
发明内容
本发明实施例提供了一种业务服务质量保证方法和集中控制器,用于在组 网网络中, 保证业务端到端的 QoS。
本发明实施例第一方面提供了一种业务服务质量保证方法, 包括: 集中控制器接收第一网络中的网络节点发送的对第一业务的业务查询请 求,所述业务查询请求用于查询所述第一业务的服务质量 QoS信息,所述 QoS 信息包括 QoS参数以及业务等级, 所述集中控制器为所述第一网络的集中控 制器, 所述第一网络为组网的一个子网, 所述组网由多个子网构成, 所述第一 业务为在所述组网中经过所述第一网络传输的一个业务,所述第一网络中的网 络节点为所述第一业务在所述第一网络中传输时经过的网络节点;
所述集中控制器将所述第一业务的 QoS信息发送给所述第一网络中的网 络节点,以使得所述第一网络中的网络节点按照所述业务等级保证所述第一业 务的 QoS参数, 其中, 一个业务的业务等级越高, 越优先保证该业务的 QoS 参数;
所述集中控制器将所述第一业务的 QoS信息共享给所述组网中其他网络 的集中控制器,以使得其他网络中的网络节点按照所述业务等级保证所述第一 业务的 QoS参数。
结合本发明实施例的第一方面,本发明实施例第一方面的第一种实现方式 中,所述集中控制器接收第一网络中的网络节点发送的对第一业务的业务查询 请求的步骤之后, 所述集中控制器将所述第一业务的 QoS信息发送给所述第 一网络中的网络节点的步骤之前还包括:
所述集中控制器查询是否存储有所述第一业务的 QoS信息;
若没有存储所述第一业务的 QoS信息, 则所述集中控制器向运营支撑系 统 0SS获取所述第一业务的 QoS信息。
结合本发明实施例第一方面的第一种实现方式,本发明实施例第一方面的 第二种实现方式中, 所述 QoS信息由用户办理业务时定制, 记录在运营商的 所述 0SS中。
结合本发明实施例的第一方面至第一方面的第二种实现方式中任一种实 现方式, 本发明实施例第一方面的第三种实现方式中, 其特征在于, 所述集中 控制器将所述第一业务的 QoS信息发送给所述第一网络中的网络节点的步骤 之前还包括: 所述集中控制器接收所述组网中其他网络的集中控制器共享的所述第一 业务的 QoS信息。
结合本发明实施例的第一方面至第一方面的第三种实现方式中任一种实 现方式, 本发明实施例第一方面的第四种实现方式中, 所述集中控制器将所述 第一业务的 QoS信息发送给所述第一网络中的网络节点的步骤之前还包括: 所述集中控制器按照所述第一业务的业务等级修改所述第一业务在所述 第一网络中的 QoS优先级, 使得业务等级越高, QoS优先级越高;
所述按照所述业务等级保证所述第一业务的 QoS参数具体包括: 按照所述第一业务在所述第一网络中的 QoS优先级保证所述第一业务的 QoS参数, 其中, 一个业务的 QoS优先级越高, 越优先保证该业务的 QoS参 数。
结合本发明实施例第一方面的第一种实现方式至第一方面的第四种实现 方式中任一种实现方式, 本发明实施例第一方面的第五种实现方式中, 所述集 中控制器查询是否存储有所述第一业务的 QoS信息具体包括:
所述集中控制器查询业务维护表中是否存储有所述第一业务的 QoS信息; 所述若没有存储所述第一业务的 QoS信息具体包括:
若所述业务维护表中没有存储所述第一业务的 QoS信息;
所述集中控制器将所述第一业务的 QoS信息共享给所述组网中其他网络 的集中控制器的步骤之前还包括:
当确定所述业务维护表中没有存储所述第一业务的 QoS信息时, 所述集 中控制器在所述业务维护表中添加所述第一业务的 QoS信息作为新条目。
本发明实施例第二方面提供了一种集中控制器, 包括:
第一接收模块,用于接收第一网络中的网络节点发送的对第一业务的业务 查询请求, 所述业务查询请求用于查询所述第一业务的服务质量 QoS信息, 所述 QoS信息包括 QoS参数以及业务等级, 所述集中控制器为所述第一网络 的集中控制器, 所述第一网络为组网的一个子网, 所述组网由多个子网构成, 所述第一业务为在所述组网中经过所述第一网络传输的一个业务,所述第一网 络中的网络节点为所述第一业务在所述第一网络中传输时经过的网络节点; 发送模块, 用于将所述第一业务的 QoS信息发送给所述第一网络中的网 络节点,以使得所述第一网络中的网络节点按照所述业务等级保证所述第一业 务的 QoS参数, 其中, 一个业务的业务等级越高, 越优先保证该业务的 QoS 参数;
共享模块, 用于将所述第一业务的 QoS信息共享给所述组网中其他网络 的集中控制器,以使得其他网络中的网络节点按照所述业务等级保证所述第一 业务的 QoS参数。
结合本发明实施例的第二方面,本发明实施例第二方面的第一种实现方式 中, 所述集中控制器还包括:
查询模块, 用于查询是否存储有所述第一业务的 QoS信息;
获取模块, 用于当所述查询模块查询到没有存储所述第一业务的 QoS信 息时, 向运营支撑系统 0SS获取所述第一业务的 QoS信息。
结合本发明实施例的第二方面或第二方面的第一种实现方式,本发明实施 例第二方面的第二种实现方式中, 所述集中控制器还包括:
第二接收模块,用于接收所述组网中其他网络的集中控制器共享的所述第 一业务的 QoS信息。
结合本发明实施例的第二方面至第二方面的第二种实现方式中任一种实 现方式,本发明实施例第二方面的第三种实现方式中,所述集中控制器还包括: 修改模块,用于按照所述第一业务的业务等级修改所述第一业务在所述第 一网络中的 QoS优先级, 使得业务等级越高, QoS优先级越高;
所述发送模块具体用于, 将所述第一业务的 QoS信息发送给所述第一网 络中的网络节点,以使得所述第一网络中的网络节点按照所述第一业务在所述 第一网络中的 QoS优先级保证所述第一业务的 QoS参数, 其中, 一个业务的 QoS优先级越高, 越优先保证该业务的 QoS参数。
结合本发明实施例第二方面的第一种实现方式至第二方面的第三种实现 方式中任一种实现方式, 本发明实施例第二方面的第四种实现方式中, 所述查 询模块具体用于, 查询业务维护表中是否存储有所述第一业务的 QoS信息; 所述获取模块具体用于,当所述查询模块查询到业务维护表中没有存储所 述第一业务的 QoS信息时,向运营支撑系统 0SS获取所述第一业务的 QoS信 息; 所述集中控制器还包括:
添加模块, 用于当确定所述业务维护表中没有存储所述第一业务的 QoS 信息时, 在所述业务维护表中添加所述第一业务的 QoS信息作为新条目。
本发明实施例第三方面提供了一种集中控制器, 包括:
输入装置, 输出装置和处理器;
所述输入装置, 用于按照处理器的操作, 接收网络节点与组网中其他集 中控制器发送的信息;
所述输出装置, 用于按照处理器的操作,发送信息给网络节点和组网中其 他集中控制器;
所述处理器, 用于执行如下操作:
接收第一网络中的网络节点发送的对第一业务的业务查询请求,所述业务 查询请求用于查询所述第一业务的服务质量 QoS信息,所述 QoS信息包括 QoS 参数以及业务等级, 所述集中控制器为所述第一网络的集中控制器, 所述第一 网络为组网的一个子网, 所述组网由多个子网构成, 所述第一业务为在所述组 网中经过所述第一网络传输的一个业务,所述第一网络中的网络节点为所述第 一业务在所述第一网络中传输时经过的网络节点;
将所述第一业务的 QoS信息发送给所述第一网络中的网络节点, 以使得 所述第一网络中的网络节点按照所述业务等级保证所述第一业务的 QoS参数, 其中, 一个业务的业务等级越高, 越优先保证该业务的 QoS参数;
将所述第一业务的 QoS信息共享给所述组网中其他网络的集中控制器, 以使得其他网络中的网络节点按照所述业务等级保证所述第一业务的 QoS参 数。
结合本发明实施例的第三方面,本发明实施例第三方面的第一种实现方式 中, 所述处理器还用于执行如下操作:
查询是否存储有所述第一业务的 QoS信息;
当确定没有存储所述第一业务的 QoS信息时, 向运营支撑系统 0SS获取 所述第一业务的 QoS信息。
结合本发明实施例的第三方面或第三方面的第一种实现方式,本发明实施 例第三方面的第二种实现方式中, 所述处理器还用于执行如下操作: 接收所述组网中其他网络的集中控制器共享的所述第一业务的 QoS信息。 结合本发明实施例的第三方面至第三方面的第二种实现方式中任一种实 现方式, 本发明实施例第三方面的第三种实现方式中, 所述处理器还用于执行 如下操作:
按照所述第一业务的业务等级修改所述第一业务在所述第一网络中的
QoS优先级, 使得业务等级越高, QoS优先级越高。
结合本发明实施例第三方面的第一种实现方式至第三方面的第三种实现 方式中任一种实现方式, 本发明实施例第三方面的第四种实现方式中,
当执行所述查询是否存储有所述第一业务的 QoS信息的操作时, 所述处 理器具体执行如下操作:
查询业务维护表中是否存储有所述第一业务的 QoS信息;
当执行所述当确定没有存储所述第一业务的 QoS信息时, 向运营支撑系 统 0SS获取所述第一业务的 QoS信息的操作时, 所述处理器具体执行如下操 作:
当确定所述业务维护表中没有存储所述第一业务的 QoS信息时, 向运营 支撑系统 0SS获取所述第一业务的 QoS信息的操作;
所述处理器还执行如下操作:
当确定所述业务维护表中没有存储所述第一业务的 QoS信息时, 在所述 业务维护表中添加所述第一业务的 QoS信息作为新条目。
从以上技术方案可以看出, 本发明实施例具有以下优点: 本发明实施例中 组网中第一网络的集中控制器接收第一网络中的网络节点发送的对第一业务 的业务查询请求, 该业务查询请求用于查询该第一业务的 QoS信息, 该 QoS 信息包括 QoS参数以及业务等级, 该集中控制器将该第一业务的 QoS信息发 送给该第一网络中的网络节点,使得该第一网络中的网络节点按照该业务等级 保证第一业务的 QoS参数, 同时, 集中控制器将该第一业务的 QoS信息共享 给该组网中其他网络的集中控制器,这样, 其他网络中的集中控制器会将该第 一业务的 QoS信息下发到其他网络的网络节点中, 使得其他网络中的网络节 点也按照该业务等级保证该第一业务的 QoS参数, 这样, 便通过集中控制器 对第一业务的 QoS信息的共享, 保证了在整个组网的各个网络中第一业务的 QoS信息的一致性, 使得组网中各个网络的网络节点都会按照该 QoS信息对 该第一业务进行业务传输, 从而在整个组网中保证了该业务端到端的 QoS。 附图说明
图 1为本发明实施例中业务服务质量保证方法一个流程示意图;
图 2为本发明实施例中业务服务质量保证方法另一个流程示意图; 图 3为本发明实施例中业务服务质量保证方法另一个流程示意图; 图 4为本发明实施例中组网网络一个结构示意图;
图 5为本发明实施例中集中控制器一个结构示意图;
图 6为本发明实施例中集中控制器另一个结构示意图;
图 7为本发明实施例中集中控制器另一个结构示意图;
图 8为本发明实施例中集中控制器另一个结构示意图;
图 9为本发明实施例中集中控制器另一个结构示意图。 具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清 楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是 全部的实施例。基于本发明中的实施例, 本领域技术人员在没有做出创造性劳 动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
应当理解,尽管在本发明实施例中可能釆用术语第一、第二等来描述各个 业务或网络,但业务或网络不应限于这些术语。这些术语仅用来将业务或网络 彼此区分开。 例如, 在不脱离本发明实施例范围的情况下, 第一网络也可以被 称为第二网络,或第三网络等; 同样的,第一业务也可以被称为第二业务等等, 本发明实施例对此不做限制。
请参阅图 1, 本发明实施例中业务服务质量保证方法一个实施例包括:
101、 集中控制器接收第一网络中的网络节点发送的对第一业务的业务查 询请求, 所述业务查询请求用于查询所述第一业务的 QoS信息;
多个子网组成一个组网系统,每个子网中都设置有一个集中控制器用于对 该网络的各个网络节点进行管理, 该第一网络为组网中一个子网, 该第一业务 为组网中经过该第一网络传输的任一个业务,该第一网络中的网络节点为该第 一业务在该第一网络中传输时经过的网络节点,当第一业务需要经过第一网络 中的一个网络节点进行传输, 而该网络节点没有该第一业务的 QoS信息时, 该网络节点会向该第一网络的集中控制器发送对该第一业务的业务查询请求, 该业务查询请求用于查询该第一业务的 QoS信息, 该第一网络的集中控制器 接收该第一网络中的网络节点发送的业务查询请求, 该 QoS信息包括 QoS参 数和业务等级。
其中, 对于网络业务, QoS参数包括传输的带宽、 传送的时延、 数据的丟 包率等。 在网络中可以通过保证传输的带宽、 降低传送的时延、 降低数据的丟 包率以及时延抖动等措施来提高服务质量。
而业务等级是由用户在运营商办理业务时确定的。客户在运营商办理不同 等级的业务服务时, 运营商会根据客户办理的具体业务来确定客户的业务等 级, 业务等级越高, 就表示运营商越需要优先保证它的服务质量。 具有业务等 级的客户或者业务可以称之为特定客户或特定业务,而不具有业务登记的客户 或者业务, 即不需要优先保证其服务质量的, 可以将业务等级置为空值, 可以 称之为普通客户或者普通业务。又根据需要保证服务质量的优先程度的高地不 同, 可以定制不同高地程度的业务等级。 业务等级与 QoS参数这些 QoS信息 可以在用户办理业务时定制, 然后记录在运营商的运营支撑系统 0SS中。
需要说明的是, 如果在软件定义网络( Software Defined Network, SDN ) 构架的网络中, 该集中控制器可以是控制该 SDN网络控制层的设备, 而在其 他网络中,只要能控制该网络的各网络节点的转发规则的设备都可以作为该网 络的集中控制器,具体使用哪个网络设备作为集中控制器, 可以根据具体网络 的构架以及网络中各网络设备的功能来定, 此处不作限定。
102、所述集中控制器将所述第一业务的 QoS信息发送给所述第一网络中 的网络节点,以使得所述第一网络中的网络节点按照所述业务等级保证所述第 一业务的 QoS参数;
该集中控制器接收到第一网络中的网络节点发送的对第一业务的业务查 询请求后, 根据该业务查询请求, 将第一业务的 QoS信息发送给该第一网络 中的网络节点,以使得所述第一网络中的网络节点按照所述业务等级保证所述 第一业务的 QoS参数, 其中, 一个业务的业务等级越高, 越优先保证该业务 的 QoS参数。
需要说明的是, 按照业务等级保证该第一业务的 QoS参数的具体实行方 式有很多种, 现有的 QoS技术中实现保证 QoS参数的技术包括有流分类、 流 量监管、 流量整形、 接口限速、 拥塞管理、 拥塞避免等, 保证 QoS参数即为 利用这些 QoS技术来满足 QoS参数的要求, 而按照业务等级来保证该第一业 务的 QoS参数即为按照该第一业务的业务等级利用 QoS技术满足该第一业务 的 QoS参数, 其中, 该第一业务的业务等级越高, 越优先满足其 QoS参数的 要求。
该集中控制器将该第一业务的 QoS信息发送给该第一网络中发起业务查 询请求的该网络节点时, 可选的, 也还可以同时主动的将该第一业务的 QoS 信息发送给该第一网络中的其他网络节点,使得该第一业务在该第一网络中经 过其他网络节点时不再需要向该集中控制器发送业务查询请求; 可选的,根据 网络的实际情况, 也可以不主动发送该第一业务的 QoS信息, 只有当网络节 点发起对该第一业务的 QoS信息的业务查询请求时, 才将该第一业务的 QoS 信息发送给发起请求的网络节点, 这样可以避免广播信息造成网络中信令过 多; 可选的, 若该集中控制器能计算并控制该第一业务传输过程中经过的网络 节点, 则也可以直接将该第一业务的 QoS信息发送给预先计算出的该第一业 务传输过程中将会经过的某几个网络节点,对于发送给其他网络节点该第一业 务的 QoS信息还可以有其他的方式, 此处不作限定。
103、 所述集中控制器将所述第一业务的 QoS信息共享给所述组网中其他 网络的集中控制器;
该集中控制器接收到该业务查询请求后, 还将该第一业务的 QoS信息共 享给该组网中其他网络的集中控制器,其他网络的集中控制器会将该第一业务 的 QoS信息发送到其他网络的网络节点, 以使得其他网络中的网络节点按照 所述业务等级保证所述第一业务的 QoS参数, 其中, 一个业务的业务等级越 高, 越优先保证该业务的 QoS参数。
可以理解的是, 该集中控制器将该第一业务的 QoS信息共享给组网中其 他网络的集中控制器后, 其他网络的集中控制器将该第一业务的 QoS信息下 发给相应网络中的网络节点的时机根据各网络的实际应用的情况不同,可以有 很多种情况,例如其他网络的集中控制器可以在接收到共享的第一业务的 QoS 信息时就直接主动的将该第一业务的 QoS信息发送给网络中的各网络节点, 也可以不发送而只进行保存, 只有当该网络中有网络节点请求该第一业务的 QoS信息时才发送该第一业务的 QoS信息到发起请求的网络节点, 还可以预 先计算出该第一业务在网络中传输时将会经过的网络节点,而预先主动发送该 第一业务的 QoS信息到计算出的该第一业务将会经过的网络节点中, 具体选 择何种时机和方式对该第一业务的 QoS信息进行下发, 根据各网络的具体情 况而定, 此处不作限定。
可以理解的是, 步骤 103也可以在步骤 102之前执行, 此处不作限定。 本发明实施例中组网中第一网络的集中控制器接收第一网络中的网络节 点发送的对第一业务的业务查询请求,该业务查询请求用于查询该第一业务的 QoS信息, 该 QoS信息包括 QoS参数以及业务等级, 该集中控制器将该第一 业务的 QoS信息发送给该第一网络中的网络节点, 使得该第一网络中的网络 节点按照该业务等级保证第一业务的 QoS参数, 同时, 集中控制器将该第一 业务的 QoS信息共享给该组网中其他网络的集中控制器, 这样, 其他网络中 的集中控制器会将该第一业务的 QoS信息下发到其他网络的网络节点中, 使 得其他网络中的网络节点也按照该业务等级保证该第一业务的 QoS参数, 这 样, 便通过集中控制器对第一业务的 QoS信息的共享, 保证了在整个组网的 各个网络中第一业务的 QoS信息的一致性, 使得组网中各个网络的网络节点 都会按照该 QoS信息对该第一业务进行业务传输, 从而在整个组网中保证了 该业务端到端的 QoS。
上面实施例中, 第一网络的集中控制器将第一业务的 QoS信息共享给其 他网络的集中控制器, 在实际应用中, 其实现方式有多种, 例如该第一网络的 集中控制器可以将该第一业务的 QoS信息进行广播, 共享给与其相连的其他 集中控制器, 其他集中控制器接收到该第一业务的 QoS信息后也同样将其广 播到相连的集中控制器, 将该第一业务的 QoS信息共享到更广阔的范围, 最 终使得整个网络的任一个相互连接的集中控制器中都存在该第一业务的 QoS 信息, 这样无论该第一业务经过哪个网络进行传输,该网络的网络节点都可以 快速的从该网络的集中控制器中得到该第一业务的 QoS信息, 而第一业务没 有经过的那些网络的集中控制器中保存的该第一业务的 QoS信息, 可以继续 保存,得到第一业务可能经过该网络的时候再使用,也可以在达到预置条件后 删除, 例如可以设定若在预置时间内没有使用该第一业务的 QoS信息就将其 删除; 再如, 若集中控制器可以计算该第一业务的传输路径, 则该第一网络的 集中控制器可以只将该第一业务的 QoS信息共享给该第一业务的传输路径上 的下一个网络, 下一个网络接收到该第一业务的 QoS信息后, 也可以将其共 享给该第一业务的传输路径上的下一个网络,如此依次共享, 最终可以使得第 一业务的传输路径上的网络的集中控制器中都存在该第一业务的 QoS信息, 这种方式建立在集中控制器能确定该第一业务的传输路径的基础之上; 再如, 集中控制器还可以不主动进行该第一业务的 QoS信息的共享, 只有当接收到 其他集中控制器的请求时, 才将该第一业务的 QoS信息共享该发起请求的集 中控制器, 还可以有其他的方式, 可以根据实际的应用情况来确定, 此处不做 限定。
网络资源总是有限的, 只要存在抢夺网络资源的情况, 就会出现服务质量 的要求。服务质量是相对网络业务而言的,在保证某类业务的服务质量的同时, 可能就是在损害其它业务的服务质量。 例如, 在网络总带宽固定的情况下, 如 果某类业务占用的带宽越多, 那么其他业务能使用的带宽就越少, 可能会影响 其他业务的使用。 因此, 网络管理者需要根据各种业务的特点来对网络资源进 行合理的规划和分配,从而使网络资源得到高效利用, 并实现优先满足业务等 级高的客户或者业务的服务质量的目的, 这就需要用到 QoS优先级。 在各个 网络中,都可以通过 QoS技术确定在该网络中传输的网络业务的 QoS优先级。 在一个网络中, 一个业务的 QoS优先级越高, 则该网络越优先满足这个业务 的 QoS。
QoS技术包括流分类、 流量监管、 流量整形、 接口限速、 拥塞管理、 拥塞 避免等。 流分类是指釆用一定的规则识别符合某类特征的报文, 它是对网络业 务进行区分服务的前提和基础。 在 QoS 的分类流程中最关键的是对各种不同 包配置不同的优先级, 即对各种不同的业务分配不同的 QoS优先级, 报文在 进入设备以后,设备会根据自身情况和相应规则分配或修改报文的各种优先级 的值, 分配的这个优先级即为该业务的 QoS优先级, 然后设备就会根据这个 优先级值执行相应的 QoS行为, 一个业务的 QoS优先级越高, 该业务传输过 程中经过设备时,设备就越会优先保证该业务的 QoS, 即尽量优先分配网络资 源满足该业务的 QoS参数, 然后才会再考虑到低 QoS优先级的业务的 QoS。
QoS优先级用于标识业务产生的报文传输的优先程度,在各种不同的网络 中, 有各种不同的业务分类机制以及 QoS优先级分配制度, 这些优先级都是 根据公认的标准和协议生成,体现了报文自身的优先等级。 下面对其中几种常 见的 QoS优先级进行说明, 包括: 802.1p优先级、 DSCP优先级、 IP优先级、 EXP优先级等。
( 1 ) IEEE 802. lp优先级:
由以太网帧 CoS字段的 3位组成, 和 VLAN ID在一起使用。 IEEE802.1p 优先级值有 8个(0-7 ), 0优先级最低, 7优先级最高。 报文分为三种情况: 带优先级和 VLAN ID的标签报文, 其优先级值是自身带的值; 只带优先级的 标签报文, 此时 VLAN ID为 0, 其优先级值是自身带的值; 未带标签的报文, 一般默认的优先级值为 0, 也可以进行更改指定新的优先级, 如下表 1所示为 对 802. lp优先级分配的说明:
表 1
Figure imgf000014_0001
( 2 ) DSCP优先级:
由 IP分组报头中的 6位组成, 使用的是 ToS字节。 DSCP优先级值有 64 个( 0-63 ), 0优先级最低, 63优先级最高。 目前定义的 DSCP有默认的 DSCP (值为 0); 类选择器 DSCP, 定义为向后与 IP优先级兼容, 值为(8, 16, 24, 32, 40, 48, 56 );加速转发( EF ),一般用于低延迟的服务,推荐值为 46( 101110 ); 确定转发(AF), 定义了 4个服务等级, 每个服务等级有 3个下降过程, 因此 使用了 12个 DSCP值((10, 12, 14), (18, 20, 22), (26, 28, 30), (34, 36, 38))。 如下表 2为对 DSCP优先级分配的说明:
表 2
Figure imgf000015_0001
(3) IP优先级: 由 IP分组报头中的服务类型( ToS )字节中的 3位组成。 IP优先级值有 8 个(0-7 ), 0优先级最低, 7优先级最高。 在默认情况下, IP优先级 6和 7用 于网络控制通讯使用, 不推荐用户使用。 ToS字段的服务类型未能在现有的 IP 网络中普及使用。 如下表 3为对 IP优先级分配的说明:
表 3
Figure imgf000016_0001
( 4 ) EXP优先级
由 MPLS头中的 3位组成, 其优先级值有 8个( 0-7 ), 0优先级最低, 7 优先级最高。 默认情况下会自动复制 IP优先级的数值, 也可以由网络管理员 在边缘路由器上手动设置。
上述即为常见的几种 QoS优先级的分类机制, 可以看出, 使用不同的分 类机制, 不仅分类的标准不同, 例如使用的关键字不同等, 而且优先级的等级 也不同, 例如 802. lp优先级有 8个等级, 而 DSCP优先级却有 64个等级, 这 样便造成了使用不同的业务分类机制和 QoS保证机制的网络之间, 可能这个 业务在前一个网络中是较高的 QoS优先级, 到了后一个网络中便成为了较低 的 QoS优先级, 难以保证该业务在整个组网网络中端到端的 QoS, 而本发明 使用集中控制器共享一个业务的 QoS信息至组网中的各网络的集中控制器, 再下发到组网中的各网络节点,使得各网络节点按照统一的业务等级的高低来 保证业务的 QoS参数, 便实现了在整个组网中 QoS信息的统一, 保证了业务 端到端的 QoS。
在组网网络中, 按照各网络功能的不同, 一般可以将各网络分为三类, 分 别为接入网, 汇聚网与核心网, 接入网直接连接用户, 网络业务通过接入网接 入汇聚网,再由汇聚网输出到核心网进行处理,再通过汇聚网和接入网传送到 目的地址, 从而构成网络业务传输的一条通路。
组网中各网络可以使用不同的网络构建机制, 例如接入网可以为 PON网 络, 而汇聚网可以为 PIN网络等。
上面实施例中, 第一网络中的集中控制器将第一业务的 QoS信息发送到 第一网络的网络节点并共享给其他网络的集中控制器, 而该第一业务的 QoS 信息的来源可能有两种。
一、 该第一网络为接入网, 且该第一业务为第一次在该组网中传输时, 此 时整个组网的各个网络中都没有该第一业务的信息,则该第一网络中的集中控 制器可以从运营商的运营支撑系统 0SS获取该第一业务的 QoS信息。
二、 该第一网络不是接入网时, 此时, 该第一业务一定先经过了接入网, 且接入网的集中控制器中存在有该第一业务的 QoS信息, 则该第一业务传输 到该第一网络时, 根据上述实施例中集中控制器将第一业务的 QoS信息共享 给组网中其他网络的集中控制器可知,第一网络中的集中控制器可以接收到其 他网络共享的第一业务的 QoS信息。
下面分别对这两种情况进行具体描述:
一、 该第一网络为接入网:
请参阅图 2, 本发明实施例中业务服务质量保证方法另一个实施例包括: 201、 集中控制器接收第一网络中的网络节点发送的对第一业务的业务查 询请求, 所述业务查询请求用于查询所述第一业务的 QoS信息;
当第一业务需要经过接入网中的一个网络节点进行传输,而该网络节点没 有该第一业务的 QoS信息时, 该网络节点会向该接入网的集中控制器发送对 该第一业务的业务查询请求, 该业务查询请求用于查询该第一业务的 QoS信 息,该第一网络的集中控制器接收该第一网络中的网络节点发送的业务查询请 求, 该 QoS信息包括 QoS参数和业务等级。
可选的,该业务查询请求中可以包括有该第一业务发起的终端的物理地址 MAC,该终端 MAC可以作为客户或业务在运营商登记的标识信息,用于作为 查询与该客户或业务在运营商处记录信息的标识; 可以理解的是, 若同一用户定制了不同业务等级的业务, 则该客户在运行 商登记时还可以登记其他的标识信息来确定不同业务的业务等级,例如除了使 用终端 MAC作为标识信息外, 还可以同时使用某个定制业务的宿地址作为标 识信息, 其中宿地址标识一个业务的目的地址, 将终端 MAC与宿地址同时作 为一个业务的标识信息即可单独确定某一个业务的业务等级, 而只使用终端 MAC作为标识信息时确定的是该终端 MAC对应的用户发起的所有的业务的 业务等级,根据实际需求不同,还可以使用其他标识信息来作为登记时业务等 级的标识,从而确定需要的某个或某类业务的业务登记, 具体选择何种标识信 息可以根据实际需求来确定, 此处不做限定。
可选的, 若该接入网为 PON网络, PON网络中上行业务的优先级通过结 合网络虚拟局域网 ( VLAN )规划在 ONU等终端上进行标识, 用户定制业务 为特殊客户或特殊业务时, 会标识其对应的局域网标识 vlanID为一个特殊客 户或特殊业务,则网络节点也可以先判断该第一业务是否为特殊客户发起或特 定业务, 并记录对该业务的判断结果, 将判断结果定义为业务标识 ( Service FLAG ), 该业务查询请求中还可以包括该业务的业务标识。
可选的, 该业务查询请求中还可以包括该第一业务的宿地址, 用于表示该 业务传输的目的地。
可选的,该业务查询请求中还可以包括有该第一业务的数据传输逻辑通道 编号 (DTLC-ID ), 用于表明该第一业务是通过哪个网络节点传输的。
可选的, 该业务查询请求中还可以包括有该第一业务在该第一网络中的
QoS优先级。
该业务查询请求中还可以包含有其他的有关 QoS的信息, 此处不作限定。 需要说明的是, 如果在软件定义网络( Software Defined Network, SDN ) 构架的网络中,该集中控制器可以是控制该 SDN网络控制层的设备,例如 SDN 控制器, 而在其他网络中, 只要能控制该网络的各网络节点的转发规则的设备 都可以作为该网络的集中控制器, 具体使用哪个网络设备作为集中控制器,可
202、 所述集中控制器查询是否存储有所述第一业务的 QoS信息; 该集中控制器接收到对第一业务的业务查询请求后,查询是否存储有该第 一业务的 QoS信息。
在实际应用中, 集中控制器中可以保存有业务维护表, 该业务维护表为记 录网络中业务信息的流表, 该流表中记录了业务的 DTLC-ID、 终端 MAC、 宿 地址、 QoS优先级、 Service FLAG, 业务等级以及 QoS参数等信息, 其中业 务等级为客户在运营商办理的业务等级, QoS参数为运营商承诺给用户保证的 QoS参数。 集中控制器可以通过业务查询请求中的终端 MAC查询该业务维护 表中是否存储有该第一业务的 QoS信息。
203、 若没有存储所述第一业务的 QoS信息, 则所述集中控制器向运营支 撑系统 OSS获取所述第一业务的 QoS信息;
集中控制器查询是否存储有该第一业务的 QoS信息, 若没有存储该第一 业务的 QoS信息,则该集中控制器向运营支撑系统 0SS获取该第一业务的 QoS 信息, 获取的 QoS信息包括业务等级和 QoS参数。
可选的,集中控制器向 0SS获取该第一业务的 QoS信息具体过程可以为: 集中控制器向该 0SS发送业务查询请求中携带的终端 MAC, 可以理解的是, 客户在运营商办理该业务时以发起该业务的终端 MAC作为该业务的标识信 息, 则 0SS根据该终端 MAC查询到对应的业务等级以及 QoS参数并发送给 集中控制器。
需要说明的是, 与网络节点向集中控制器发送的业务查询请求类似,根据 客户在运营商办理业务时确定的业务的标识信息的不同,可以确定不同种类的 业务的业务等级, 例如除了使用该终端 MAC作为业务的标识信息, 还可以使 用该终端 MAC与业务的宿地址一同作为业务的标识信息, 还可以设定其他的 标识信息以确定某个或某类的业务, 相应的, 集中控制器向 0SS发送的业务 查询请求中除了可以携带终端 MAC外, 还可以携带其他的标识信息, 例如可 以直接将网络节点发送的业务查询请求进行转发, 0SS根据可以忽略该业务查 询请求中无用的信息, 只对客户办理业务时确定的标识信息进行查询。
可选的, 若集中控制器中存储有该第一业务的 QoS信息, 或者该集中控 制器通过业务查询请求中的业务标识可以判断该第一业务为普通客户或者普 通业务, 则也可以不向 0SS查询 QoS, 直接将该业务对应的业务等级与 QoS 参数置为空值。 204、所述集中控制器将所述第一业务的 QoS信息发送给所述第一网络中 的网络节点;
该集中控制器获取到该第一业务的 QoS信息后, 将第一业务的 QoS信息 发送给该第一网络中的网络节点,以使得所述第一网络中的网络节点按照所述 业务等级保证所述第一业务的 QoS参数, 一个业务的 QoS信息中的业务等级 越高, 越优先于其他业务保证该业务的 QoS参数。
集中控制器将该第一业务的 QoS参数以及业务等级发送给第一网络中的 网络节点后, 该网络节点可以按照该 QoS参数与业务等级将该第一业务发送 到接入网的边缘节点, 传输到汇聚网中。
可选的, 使得网络节点按照业务等级保证第一业务的 QoS参数, 业务等 级越高, 越优先保证该业务的 QoS参数的具体实现方式有很多种, 具体可以 为: 集中控制器得到该第一业务的业务等级后, 可以根据该业务等级, 修改该 第一业务在该第一网络中的 QoS优先级, 使得业务等级越高, QoS优先级越 高, 因为在网络中会按照业务的 QoS优先级顺序保证 QoS参数, 便实现了相 应的实现了业务等级越高, 越优先保证该业务的 QoS参数的原则, 可以理解 的是, 除了这种方式, 还可以不使用各网络的 QoS优先级, 直接设定各网络 中的网络节点按照业务等级由高到底的次序来保证其 QoS参数, 还可以有其 他很多种可以使得业务等级越高, 越优先保证该业务的 QoS参数的设定方式, 可以根据具体情况而定, 此处不作限定。
可以理解的是, 按照 QoS优先级保证 QoS参数即为利用 QoS技术按照
QoS优先级满足其 QoS参数的要求, 一个业务的 QoS优先级越高, 越优先满 足其 QoS参数的要求。
需要说明的是, 运营商的 0SS就是位于接入网中, 而业务的业务等级记 录在 0SS中, 所以, 一般情况下, 接入网中的 QoS优先级都已经被设定成满 足业务等级越高, 则其对应的业务的 QoS优先级越高的状态了, 此时, 在接 入网中, 集中控制器也可以不对该 QoS优先级进行修改, 当然, 如果接入网 中的 QoS优先级不满足该状态, 或者希望该状态在各个网络中体现的更加准 确, 也可以设定为在接入网中按照该状态对 QoS优先级进行修改, 此处不作 限定。 可选的, 该集中控制器获取到该第一业务的 QoS信息后, 可以根据业务 查询请求中携带的信息与获取到的该 QoS信息更新业务维护表, 当确定该业 务维护表中没有存储该第一业务的 QoS信息时, 在该业务维护表中添加进该 第一业务的 QoS信息作为新条目。
205、 所述集中控制器将所述第一业务的 QoS信息共享给所述组网中其他 网络的集中控制器;
该集中控制器获取到该第一业务的 QoS信息后, 还将该第一业务的 QoS 信息共享给该组网中其他网络的集中控制器,其他网络的集中控制器会将该第 一业务的 QoS信息发送到其他网络的网络节点, 以使得其他网络中的网络节 点按照所述业务等级保证所述第一业务的 QoS参数, 其中, 一个业务的业务 等级越高, 越优先保证该业务的 QoS参数。
可以理解的是, 该第一网络中的集中控制器具体将该第一业务的 QoS信 息共享给组网中哪个集中控制器, 需要根据各集中控制器的连接方式而定, 例 如组网中的各集中控制器都两两互相连接,或接入网的集中控制器连接了其他 所有网络的集中控制器, 则该接入网的集中控制器共享该第一业务的 QoS信 息时, 组网中其他所有网络的集中控制器都会接收到该第一业务的 QoS信息, 而若仅仅根据网络传输顺序——连接,则各网络中的集中控制器则只会接收到 与之相连的网络中的集中控制器共享的 QoS信息, 然后再将该 QoS信息共享 给下一个网络, 例如接入网的集中控制器只会将该第一业务的 QoS信息共享 给汇聚网的集中控制器, 此处不作限定。
可以理解的是, 该集中控制器将该第一业务的 QoS信息共享给该组网中 其他网络的集中控制器时,还可以同时将该集中控制器的业务维护表中有关该 第一业务的其他信息 (例如终端 MAC, 宿地址等) 同时共享给其他的集中控 制器。
本发明实施例中, 第一网络为接入网时, 集中控制器接收到业务查询请求 后, 先查询业务维护表中是否存储有该业务的 QoS信息, 若没有, 则从 0SS 中获取该业务的 QoS信息, 保证了获取到的 QoS信息的准确性, 进一步的, 可以根据业务等级对该业务在当前网络中的 QoS优先级进行修改, 利用各网 络中的 QoS优先级的体制, 实现了业务等级越高, 越优先保证该业务对应的 QoS参数的目的。
可以理解的是, 若该第一网络为接入网, 且接收到业务查询请求时, 该第 一网络的集中控制器查询到业务维护表中存储有该第一业务的 QoS信息时, 则可以直接执行步骤 204与 205, 不再从 0SS中获取该 QoS信息, 然而, 一 般情况下,按照前述实施例描述的方法, 若第一网络的集中控制器中存储有该 第一业务的 QoS信息, 都会将该第一业务的 QoS信息共享给其他网络的集中 控制器, 可能只是该第一网络中的网络节点遗失了下发的该第一业务的 QoS 信息, 则在这种情况下, 也可以只执行步骤 204, 此处不作限定。
二、 该第一网络不是接入网:
请参阅图 3, 本发明实施例中业务服务质量保证方法另一个实施例包括: 可以理解的是,集中控制器接收的其他集中控制器共享的第一业务的 QoS 信息后, 有多种处理方式, 其中包括主动下发该第一业务的 QoS信息, 如果 釆取这种处理方式, 当接入网中的集中控制器获取到该第一业务的 QoS信息 并共享给组网中其他的集中控制器, 其他的集中控制器主动将该第一业务的 QoS信息下发则已经保证了全网 QoS信息的统一, 然而在有些情况下, 其他 集中控制器接收到对该第一业务的 QoS信息的共享后, 不会主动将其下发给 网络节点, 只有接收到网络节点对该第一业务的 QoS信息的请求时才会该信 息发送给发起请求的网络节点, 本实施例即描述的此种情况。
301、 集中控制器接收第一网络中的网络节点发送的对第一业务的业务查 询请求, 所述业务查询请求用于查询所述第一业务的 QoS信息;
第一网络的集中控制器接收该第一网络中的网络节点发送的对第一业务 的业务查询请求,该业务查询请求用于查询所述第一业务的 QoS信息,该 QoS 信息包括 QoS参数和业务等级。
可选的,该业务查询请求中可以包括有该第一业务发起的终端的物理地址 MAC,该终端 MAC可以作为客户或业务在运营商登记的标识信息,用于查询 与该客户或业务在运营商处记录的信息。
可选的, 该业务查询请求中还可以包括该第一业务的宿地址, 用于表示该 业务传输的目的地。
可选的,该业务查询请求中还可以包括有该第一业务的数据传输逻辑通道 编号 (DTLC-ID ), 用于表明该第一业务是通过哪个网络节点传输的。 可选的, 该业务查询请求中还可以包括有该第一业务在该第一网络中的 QoS优先级。
可选的, 该业务查询请求中还可以包括该业务的业务标识。
该业务查询请求中还可以包含有其他的有关 QoS的信息, 此处不作限定。 需要说明的是, 如果在软件定义网络( Software Defined Network, SDN ) 构架的网络中,该集中控制器可以是控制该 SDN网络控制层的设备,例如 SDN 控制器, 而在其他网络中, 只要能控制该网络的各网络节点的转发规则的设备 都可以作为该网络的集中控制器, 具体使用哪个网络设备作为集中控制器,可
302、 集中控制器接收组网中其他网络的集中控制器发送的所述第一业务 的 QoS信息。
若有组网中其他网络的集中控制器先共享了该第一业务的 QoS信息, 该 集中控制器可以接收该组网中其他网络的集中控制器发送的第一业务的 QoS 信息。
可以理解的是, 步骤 302也可以在步骤 301之前执行, 此处不作限定。
303、所述集中控制器将所述第一业务的 QoS信息发送给所述第一网络中 的网络节点;
该集中控制器接收到该第一业务的 QoS信息和第一网络中网络节点发出 的业务查询请求后, 将第一业务的 QoS信息发送给该第一网络中的网络节点, 使得第一网络中的网络节点按照所述业务等级保证所述第一业务的 QoS参数, 该 QoS信息中包括业务等级与 QoS参数,一个业务的 QoS信息中的业务等级 越高, 越优先于其他业务保证该业务的 QoS参数。
可以理解的是,在实际应用中, 当步骤 302中第一网络中的集中控制器接 收到其他集中控制器共享的第一业务的 QoS信息后, 也可以不用等待该第一 网络中的网络节点发送对该第一业务的业务查询请求,直接主动将该第一业务 的 QoS信息发送到第一网络中的各网络节点中, 使得各网络节点将该第一业 务的 QoS信息注入到自身的流表, 当第一业务传输经过时, 按照流表中存储 的 QoS信息执行 QoS, 不需要再发送业务查询请求, 则在这种情况下, 也可 以不需要步骤 301。
可以理解的是, 若网络节点中存储有一个业务的 QoS信息, 例如该业务 为第二次传输经过该网络节点, 则该网络节点也不需要发送业务查询请求, 直 接按照存储有的 QoS信息对该业务执行 QoS即可。
集中控制器将该第一业务的 QoS参数以及业务等级发送给第一网络中的 网络节点后, 该网络节点可以按照该 QoS参数与业务等级将该第一业务发送 到第一网络的边缘节点, 传输到下一个网络中。
可选的, 使得网络节点按照业务等级保证第一业务的 QoS参数, 业务登 记越高, 越优先保证该业务的 QoS参数的具体实现方式有很多种, 具体可以 为: 集中控制器得到该第一业务的业务等级后, 可以根据该业务等级, 修改该 第一业务在该第一网络中的 QoS优先级, 使得业务等级越高, QoS优先级越 高, 因为在网络中会按照业务的 QoS优先级顺序保证 QoS参数, 便实现了相 应的实现了业务等级越高, 越优先保证该业务的 QoS参数的原则, 可以理解 的是, 除了这种方式, 还可以不使用各网络的 QoS优先级, 直接设定各网络 中的网络节点按照业务等级由高到底的持续来保证其 QoS参数, 还可以有其 他很多中可以使得业务等级越高, 越优先保证该业务的 QoS参数的设定方式, 可以根据具体情况而定, 此处不作限定。
可选的, 按照业务等级修改 QoS优先级的方式也有多种, 只需要满足在 一个网络中, 业务等级越高, 其 QoS优先级越高的原则即可, 例如, 可以根 据业务等级, 业务最高等级以及当前网络的 QoS优先级的总级数来修改 QoS 优先级, 例如第一业务的业务等级为 2, 业务最高等级为 4, 最低等级为 1, 当前网络的 QoS优先级的总级数为 12, 则可以修改 QoS优先级为 12/4*2=6; 还可以结合业务等级, 业务最高等级, 当前网络的 QoS优先级的总级数以及 该第一业务在当前网络中的 QoS优先级来对该 QoS优先级进行修改, 将该业 务在当前网络中的 QoS优先级以及该业务等级都作加权处理, 例如设定该业 务在当前网络中的 QoS优先级的加权值为 0.2,设定业务等级的加权值为 0.8, 该业务在当前网络中的 QoS优先级为 6, 则可用爹改 QoS优先级 ,0.2*6+0.8* ( 12/4*2 ) =4.4 , 即只需要满足业务等级越高,其 QoS优先级越高的原则, QoS 优先级不一定需要为整数, 在一些情况下, 也可以对计算出的 QoS优先级进 行取整运算再进行修改, 也还可以有其他修改 QoS优先级的方式, 此处不作 限定。
可以理解的是, 按照 Qos优先级保证 QoS参数即为利用 QoS技术按照 QoS优先级满足其 QoS参数的要求, 一个业务的 QoS优先级越高, 越优先满 足其 QoS参数的要求。
可以理解的是,若集中控制器按照业务等级修改了该业务在第一网络中的 QoS优先级, 则该集中控制器发送给第一网络的网络节点的 QoS信息中携带 该修改后的 QoS优先级, 使得网络节点按照修改后的 QoS优先级保证该业务 的 QoS参数。
可选的, 该集中控制器获取到该第一业务的 QoS信息后, 可以根据业务 查询请求中携带的信息与该 QoS信息更新业务维护表, 在该业务维护表中添 加进该第一业务的 QoS信息作为新条目。
304、 所述集中控制器将所述第一业务的 QoS信息共享给所述组网中其他 网络的集中控制器;
该集中控制器获取到该第一业务的 QoS信息后, 还将该第一业务的 QoS 信息共享给该组网中其他网络的集中控制器,其他网络的集中控制器会将该第 一业务的 QoS信息发送到其他网络的网络节点, 以使得其他网络中的网络节 点按照所述业务等级保证所述第一业务的 QoS参数。
可以理解的是, 该集中控制器将该第一业务的 QoS信息共享给该组网中 其他网络的集中控制器时,还可以同时将该集中控制器的业务维护表中有关该 第一业务的其他信息 (例如终端 MAC, 宿地址等) 同时共享给其他的集中控 制器。
本发明实施例中,集中控制器可以接收组网中其他网络的集中控制器发送 的第一业务的 QoS信息, 这样不需要每个集中控制器都向 0SS获取该第一业 务的 QoS信息, 简化了流程, 提高了 QoS保证过程中的各集中控制器的处理 效率。
为便于理解,下面以一具体应用场景对本发明实施例中业务服务质量保证 方法进行具体描述:
本实施例中, 以 P0N网络作为接入网, 以 PTN网络作为汇聚网, 然后再 接入核心网, 设定 PON网络中的集中控制器为 PON-C, PTN网络中的集中控 制器为 PTN-C, 核心网中的集中控制器为 CN-C, 各集中控制器按照接入网到 汇聚网到核心网的顺序依次连接, 图 4为组网网络一个结构示意图。
下面先对分别 PON网络与 PTN网络中的 QoS进行说明:
无源光网络 ( Passive Optical Network, PON ) 是指光配线网 (Optical
Distribution Network, ODN )不含有任何电子器件及电子电源的网络, 其 ODN 全部由光分路器等无源器件组成, 不需要成本相对较高的有源电子设备。 PON 由光线路终端 ( Optical Line Terminal, OLT )、 光合 /分路器( Spliter )和光网 络单元( Optical Network Unit, ONU )组成, 釆用树形拓朴结构。 OLT放置在 中心局端, 分配和控制信道的连接, 并有实时监控、 管理及维护功能。 ONU 放置在用户侧, OLT与 ONU之间通过无源光合 /分路器连接。
PON 系统中主流的以太网无源光网络(EPON ) 和吉比特无源光网络 ( GPON )技术均沿用了 IP网络中的 QoS技术, 其网络架构釆用了 OLT光线 路终端和 ONU光网络单元两级体系, 为保证全程 QoS, OLT和 ONU都具备 相应的 QoS功能。 系统利用数据链路层优先级( 802.p )标识各种业务的服务 质量等级。上行业务的优先级通过结合网络虚拟局域网(VLAN )规划在 ONU 等终端上进行标识, 下行业务的优先级在 OLT及以下的设备中不做修改, 默 认信任由上层设备标识的优先级, OLT即为 PON网络中的网络节点。
分组传送网 ( Packet Transport Network, PTN )是面向分组的支持传送平台 基础特性的下一代传送平台。 PTN以 IP为内核, 通过以太网为外部表现形式 的业务层和 WDM等光传输媒介 ( L1或以太网物理层)设置在一个层面, 为 L3/L2乃至 L1用户提供以太帧、 MPLS ( IP ), AM VP和 VC、 PHD, F 等符 合 IP流量特征的各类业务。
在 PTN中, 其 QoS技术需要根据用户侧和网络侧的特点选择服务模型, 在用户侧可釆用 MPLS Diff-Serv模型。 如下表 4所示为一个典型的 PTN承载 业务 QoS分配表, 业务由用户侧进入网络, Ingress节点釆用 MPLS Diff-Serv 模型对数据包加标签( EXP ), Transit节点再根据优先级进行不同的转发处理。
表 4
对应的服务 EXP DSCP 应用 BE 0 0 互联网
AF1 Green 1 10 企业租线
AF2 Green 2 18 IPTV视频点播
AF3 Green 3 26 IPTV广播
AF4 Green 4 34 语音, 高等级数据业务专线
EF 5 46 语音, 仿真业务
CS6 6 48 信令, 网管
CS7 7 56 同步信令, 网管
本实施例的组网釆用 SDN构架,依托 SDN架构中各网络的集中控制器对 各网络中的网络节点进行控制与调度。
软件定义网络(Software Defined Network, SDN )是一种新型网络架构, 它提供了一种实现应用程序与网络设备、资源控制软件交互并操作它们的网络 手段。 它将路由器的控制层分离出来, 由一台独立的控制器利用软件编程方式 实现。 逻辑控制和数据转发分离的这种管控思想是 SDN技术的核心思想, 这 使得整个网络可编程化, 用户可以自定义自己相关的网络策略, 利用控制器定 义转发策略使网络工作更加灵活。
SDN 架构主要分为基础设施层、 控制层和应用层。 基础设施层表示网络 的底层转发设备, 包含了特定的转发面抽象(如 OpenFlow交换机中流表的匹 配字段设计)。 中间的控制层集中维护网络状态, 并通过南向接口 (控制和数 据平面接口, 如 OpenFlow )获取底层基础设施信息, 同时为应用层提供可扩 展的北向接口。 应用层根据网络不同的应用需求, 用控制层的北向接口, 实现 不同功能的应用程序。 通过这种软件模式, 网络管理者能够通过动态的 SDN 应用程序来配置、 管理和优化底层的网络资源, 从而实现灵活可控的网络。
在接入网中发起该第一业务的用户终端的 MAC为 0xala2a3,该第一业务 在运营商开通的业务等级为 2, 最高业务等级为 4, 最低业务等级为 0, 即为 普通客户或普通业务, 定制的 QoS参数有带宽 3M、 丟包率小于 0.1%、 时延 小于 140ms、 抖动小于 50ms。
PON网络中的网络节点 OLT接收到该第一业务后,通过 vlanID判断出该 第一业务为特殊客户发起或者特定业务,将 Service FLAG标记为 1,表示其为 特殊客户 /特殊业务;
该网络节点 OLT向 PON网络中的集中控制器 PON-C发起对该第一业务 的业务查询请求,该业务查询请求中包含该第一业务的逻辑链路标识(Logical Link Identification, LLID X 0x0001 )、终端 MAC( 0xala2a3 )、宿地址( 0xblb2b3 )、 802.1p ( 4 ) 以及 Service FLAG ( 1 );
PON-C接收到该业务查询请求后, 查询业务维护表, 没有找到与 LLID ( 0x0001 )、 终端 MAC ( 0xala2a3 )、 宿地址( 0xblb2b3 ) 匹配的记录信息, PON-C向 OSS请求获取该业务的 QoS信息, 包括业务等级及 QoS参数, 请 求中包含业务终端 MAC ( 0xala2a3 );
可以理解的是, 向 OSS请求业务的 QoS信息时请求中包含的标识可以根 据客户与运营商签订的对业务的标识信息而定, 请求中只包含终端 MAC则表 示确定该终端 MAC发出的所有业务都具有同样的 QoS信息,该请求中还可以 包含有宿地址, 则查询到的是从该终端 MAC到宿地址的业务的 QoS信息,还 可以包含有其他的标识信息来确定某种或某类业务的 QoS信息, 此处不作限 定。
OSS将 MAC为 0xala2a3的终端业务的 QoS信息回复给 PON-C。 回复中 包含终端 MAC ( 0xala2a3 )、 业务等级( 2 )及 QoS参数 (带宽 3M、 丟包率 小于 0.1%、 时延小于 140ms、 抖动小于 50ms );
PON-C接收到 OSS的回复的 QoS信息后, 在业务维护表中添加新条目, 该新条目中包括新业务的 LLID ( 0x0001 )、 终端 MAC ( 0xala2a3 )、 宿地址 ( 0xblb2b3 )、 802.1p ( 3 )、 Service FLAG ( 1 ) 以及 OSS回复的该业务的业务 等级(2 )和 QoS参数(带宽 3M、 丟包率小于 0.1%、 时延小于 140ms、 抖动 小于 50ms );
PON-C将该 QoS信息发送给网络节点 OLT, 使得 OLT按照该 QoS信息 中的 QoS参数将该第一业务发送到 PON网络的边缘节点并传送到 PTN网络 中, 由于 PON网络为接入网, 该网络的 QoS优先级符合业务等级越高, QoS 优先级越高的原则, 则可以不在该 PON网络中对 QoS优先级进行修改, OLT 可以按照 PON网络中该第一业务的 QoS优先级保证该第一业务的 QoS参数; 可以理解的是, 网络节点按照 QoS信息将该第一业务发送到另外哪个网 络节点与该第一业务的宿地址以及各网络节点的路由算法有关, 与该 QoS信 息无关, 本实施例中由于 PON网络作为接入网, PTN网络作为汇聚网, 第一 业务需要经过这个路径传输, 所以才需要将该第一业务发送到 P0N网络的边 缘节点并传送到 PTN网络中, 传送到 PTN网络中后。 而 PON-C将该第一业 务的 QoS信息共享给哪个或哪几个集中控制器也与该第一业务发送到哪个网 络节点无关, 只与组网中各集中控制器的连接关系有关, 本实施例中 P0N网 络的集中控制器 P0N-C与 PTN网络的集中控制 PTN-C相连接。
P0N-C将该第一业务的 QoS信息共享给与之相连的 PTN-C;
PTN-C接收到该第一业务的 QoS信息后, 更新自己的业务维护表, 同时 共享该第一业务的 QoS信息给 CN-C; PTN-C在业务维护表中添加新条目,条 目中包含源地址( 0xala2a3 )、 宿地址( 0xblb2b3 ), Service FLAG ( 1 )、 业务 等级(2 ) 以及 QoS参数(带宽 3M、 丟包率小于 0.1%、 时延小于 140ms、 抖 动小于 50ms )。
可以理解的是, PTN-C接收到该第一业务的 QoS信息后, 根据网络的实 际设定, 有不同的处理情况, 其中一种为可以共享该第一业务的 QoS信息给 与之相连的其他集中控制器, 并主动将该第一业务的 QoS信息发送给 PTN网 络中的各网络节点, 若为这种情况, 则组网中各网络中的网络节点就都完成了 QoS信息的统一; 下面对第二种情况进行描述, 即 PTN-C不主动将该第一业 务的 QoS信息下发到 PTN网络中的各网络节点,只有当接收到 PTN网络中的 网络节点对该第一业务的 QoS的请求时, 才将该第一业务的 QoS信息发送给 发起请求的网络节点:
PTN中的网络节点向 PTN-C发起业务查询请求, 该业务查询请求中包含 有该第一业务在 PTN网络中的 QoS优先级 EXP的初始值为 2;
PTN-C修改该第一业务在 PTN中的 QoS优先级为 0.2 (加权值) *2 ( QoS 优先级) +0.8 (加权值 ) *8 ( QoS优先级的级数 ) 15 (业务等级数 ) *2 (业务 等级) =2.96, 取值为 3; PTN-C将业务维护表中该第一业务的 QoS信息发送 给该网络节点, 该 QoS信息包括修改后的 QoS优先级;
PTN网络中的网络节点按照 QoS优先级 EXP的值为 3保证该第一业务的 QoS参数, 将该第一业务传送到该 PTN网络的边缘节点, 进入 CN网络; 业务到达 CN网络中, 处理流程与在该 PTN网络中类似, 首先更新业务 维护表并转发条目,再根据业务等级修改其 QoS优先级,再下发修改后的 QoS 信息, 使网络中的节点按修改后的要求进行转发。
可以理解的是, 上述过程为业务首次发起时的流程,如果业务不是首次发 起, 该接入网 PON的集中控制器 PON-C中已经有了该第一业务的 QoS信息, 则接收到业务查询请求后, 不再需要向 OSS获取该第一业务的 QoS信息, 具 体流程如下:
PON网络中的网络节点 OLT接收到该第一业务后,通过 vlanID判断出该 第一业务为特殊客户发起或者特定业务,将 Service FLAG标记为 1,表示其为 特殊客户 /特殊业务;
该网络节点 OLT向 PON网络中的集中控制器 PON-C发起对该第一业务 的业务查询请求, 该业务查询请求中包含该第一业务的 LLID ( 0x0001 )、 终端 MAC ( 0xala2a3 )、 宿地址( 0xblb2b3 )、 802. lp ( 4 ) 以及 Service FLAG ( 1 );
PON-C 接收到该业务查询请求后, 查询业务维护表, 找到与 LLID ( 0x0001 )、 终端 MAC ( 0xala2a3 )、 宿地址( 0xblb2b3 ) 匹配的记录信息, 说明网络中已经完成了对该第一业务的 QoS信息的统一映射, PON-C直接回 复业务维护表中该第一业务的 QoS信息给 0LT;
业务到达 PTN后, PTN边缘网络节点保留有 PTN-C下发的该业务的流表, 边缘网络节点直接按照流表信息进行转发;
业务到达 CN后处理流程与 PTN中一样, 边缘节点按照保留的该业务的 流表信息进行转发, 快速有效地保证该业务的端到端 QoS需求。
下面对本发明实施例中的集中控制器进行描述, 请参阅图 5, 本发明实施 例中集中控制器一个实施例包括:
第一接收模块 501, 用于接收第一网络中的网络节点发送的对第一业务的 业务查询请求, 所述业务查询请求用于查询所述第一业务的服务质量 QoS信 息, 所述 QoS信息包括 QoS参数以及业务等级,,所述集中控制器为所述第一 网络的集中控制器, 所述第一网络为组网的一个子网, 所述组网由多个子网构 成, 所述第一业务为在所述组网中经过所述第一网络传输的一个业务, 所述第 一网络中的网络节点为所述第一业务在所述第一网络中传输时经过的网络节 点;
发送模块 502,用于将所述第一业务的 QoS信息发送给所述第一网络中的 网络节点,以使得所述第一网络中的网络节点按照所述业务等级保证所述第一 业务的 QoS参数,其中,一个业务的业务等级越高,越优先保证该业务的 QoS 参数;
共享模块 503,用于将所述第一业务的 QoS信息共享给所述组网中其他网 络的集中控制器,以使得其他网络中的网络节点按照所述业务等级保证所述第 一业务的 QoS参数。
本发明实施例中组网中第一网络的第一接收模块 501 接收第一网络中的 网络节点发送的对第一业务的业务查询请求,该业务查询请求用于查询该第一 业务的 QoS信息, 该 QoS信息包括 QoS参数以及业务等级, 发送模块 502将 该第一业务的 QoS信息发送给该第一网络中的网络节点, 使得该第一网络中 的网络节点按照该业务等级保证第一业务的 QoS参数, 同时, 共享模块 503 将该第一业务的 QoS信息共享给该组网中其他网络的集中控制器, 这样, 其 他网络中的集中控制器会将该第一业务的 QoS信息下发到其他网络的网络节 点中, 使得其他网络中的网络节点也按照该业务等级保证该第一业务的 QoS 参数, 这样, 便通过集中控制器对第一业务的 QoS信息的共享, 保证了在整 个组网的各个网络中第一业务的 QoS信息的一致性, 使得组网中各个网络的 网络节点都会按照该 QoS信息对该第一业务进行业务传输, 从而在整个组网 中保证了该业务端到端的 QoS。
在实际应用中, 第一接收模块 501接收到业务查询请求后, 该集中控制器 可以先查询是否存储有第一业务的 QoS信息,请参阅图 6,本发明实施例中集 中控制器另一个实施例包括:
第一接收模块 601, 用于接收第一网络中的网络节点发送的对第一业务的 业务查询请求, 所述业务查询请求用于查询所述第一业务的服务质量 QoS信 息, 所述 QoS信息包括 QoS参数以及业务等级, 所述集中控制器为所述第一 网络的集中控制器, 所述第一网络为组网的一个子网, 所述组网由多个子网构 成, 所述第一业务为在所述组网中经过所述第一网络传输的一个业务, 所述第 一网络中的网络节点为所述第一业务在所述第一网络中传输时经过的网络节 点;
发送模块 602,用于将所述第一业务的 QoS信息发送给所述第一网络中的 网络节点,以使得所述第一网络中的网络节点按照所述业务等级保证所述第一 业务的 QoS参数,其中,一个业务的业务等级越高,越优先保证该业务的 QoS 参数;
共享模块 603,用于将所述第一业务的 QoS信息共享给所述组网中其他网 络的集中控制器,以使得其他网络中的网络节点按照所述业务等级保证所述第 一业务的 QoS参数;
本实施例中, 该集中控制器还包括:
查询模块 604, 用于查询是否存储有所述第一业务的 QoS信息; 获取模块 605, 用于当所述查询模块 604查询到没有存储所述第一业务的 QoS信息时, 向运营支撑系统 0SS获取所述第一业务的 QoS信息。
本发明实施例中, 查询模块 604查询到没有存储所述第一业务的 QoS信 息时,获取模块 605向 0SS获取该第一业务的 QoS信息,保证了获取到的 QoS 信息的准确性。
上面实施例中, 获取模块 605向 0SS获取第一业务的 QoS信息, 在实际 应用中,该集中控制器还可能接收到组网中其他集中控制器共享的该第一业务 的 QoS信息, 请参阅图 7, 本发明实施例中集中控制器另一个实施例包括: 第一接收模块 701, 用于接收第一网络中的网络节点发送的对第一业务的 业务查询请求, 所述业务查询请求用于查询所述第一业务的服务质量 QoS信 息, 所述 QoS信息包括 QoS参数以及业务等级, 所述集中控制器为所述第一 网络的集中控制器, 所述第一网络为组网的一个子网, 所述组网由多个子网构 成, 所述第一业务为在所述组网中经过所述第一网络传输的一个业务, 所述第 一网络中的网络节点为所述第一业务在所述第一网络中传输时经过的网络节 点;
发送模块 702,用于将所述第一业务的 QoS信息发送给所述第一网络中的 网络节点,以使得所述第一网络中的网络节点按照所述业务等级保证所述第一 业务的 QoS参数,其中,一个业务的业务等级越高,越优先保证该业务的 QoS 参数; 共享模块 703,用于将所述第一业务的 QoS信息共享给所述组网中其他网 络的集中控制器,以使得其他网络中的网络节点按照所述业务等级保证所述第 一业务的 QoS参数;
该集中控制器还包括:
查询模块 704, 用于查询是否存储有所述第一业务的 QoS信息; 获取模块 705, 用于当所述查询模块 704查询到没有存储所述第一业务的 QoS信息时, 向运营支撑系统 0SS获取所述第一业务的 QoS信息;
本实施例中, 该集中控制器还包括:
第二接收模块 706, 用于接收所述组网中其他网络的集中控制器共享的所 述第一业务的 QoS信息。
本发明实施例中,第二接收模块 706可以接收到组网中其他网络的集中控 制器共享的该第一业务的 QoS信息,不在需要从 0SS中获取该第一业务的 QoS 信息, 简化了得到 QoS信息的流程, 提高了处理效率。
上面实施例中, 发送第一业务的 QoS信息给网络节点, 使网络节点按照 业务等级保证该第一业务的 QoS参数, 在实际应用中, 集中控制器可以按照 业务等级修改第一业务在各网络中的 QoS优先级,从而通过网络节点按照 QoS 优先级保证该第一业务的 QoS参数, 来实现网络节点按照业务等级保证该第 一业务的 QoS参数的目的,请参阅图 8, 本发明实施例中集中控制器另一个实 施例包括:
第一接收模块 801, 用于接收第一网络中的网络节点发送的对第一业务的 业务查询请求, 所述业务查询请求用于查询所述第一业务的服务质量 QoS信 息, 所述 QoS信息包括 QoS参数以及业务等级, 所述集中控制器为所述第一 网络的集中控制器, 所述第一网络为组网的一个子网, 所述组网由多个子网构 成, 所述第一业务为在所述组网中经过所述第一网络传输的一个业务, 所述第 一网络中的网络节点为所述第一业务在所述第一网络中传输时经过的网络节 点;
发送模块 802,用于将所述第一业务的 QoS信息发送给所述第一网络中的 网络节点,以使得所述第一网络中的网络节点按照所述业务等级保证所述第一 业务的 QoS参数,其中,一个业务的业务等级越高,越优先保证该业务的 QoS 参数;
共享模块 803,用于将所述第一业务的 QoS信息共享给所述组网中其他网 络的集中控制器,以使得其他网络中的网络节点按照所述业务等级保证所述第 一业务的 QoS参数;
该集中控制器还包括:
查询模块 804, 用于查询是否存储有所述第一业务的 QoS信息;
获取模块 805, 用于当所述查询模块 804查询到没有存储所述第一业务的 QoS信息时, 向运营支撑系统 0SS获取所述第一业务的 QoS信息;
该集中控制器还包括:
第二接收模块 806, 用于接收所述组网中其他网络的集中控制器共享的所 述第一业务的 QoS信息。
本实施例中, 该集中控制器还包括:
修改模块 807, 用于按照所述第一业务的业务等级修改所述第一业务在所 述第一网络中的 QoS优先级, 使得业务等级越高, QoS优先级越高;
所述发送模块 802具体用于, 将所述第一业务的 QoS信息发送给所述第 一网络中的网络节点,以使得所述第一网络中的网络节点按照所述第一业务在 所述第一网络中的 QoS优先级保证所述第一业务的 QoS参数, 其中, 一个业 务的 QoS优先级越高, 越优先保证该业务的 QoS参数;
可选的, 该查询模块 804具体可以用于, 查询业务维护表中是否存储有所 述第一业务的 QoS信息;
该获取模块 805具体用于,当所述查询模块 804查询到业务维护表中没有 存储所述第一业务的 QoS信息时, 向运营支撑系统 0SS获取所述第一业务的 QoS信息;
该集中控制器还可以包括:
添加模块 808, 用于当确定所述业务维护表中没有存储所述第一业务的
QoS信息时, 在所述业务维护表中添加所述第一业务的 QoS信息作为新条目。
本实施例中, 修改模块 807按照业务等级修改该第一业务的 QoS优先级, 利用各网络中 QoS优先级保证 QoS参数的体制, 实现了业务等级越高, 越优 先保证该业务对应的 QoS参数的目的。 上面从单元化功能实体的角度对本发明实施例中的集中控制器进行了描 述, 下面从硬件处理的角度对本发明实施例中的集中控制器进行描述,请参阅 图 9, 本发明实施例中的集中控制器 900另一实施例包括:
输入装置 901、 输出装置 902和处理器 903 (其中集中控制器 900中的处 理器 903的数量可以一个或多个, 图 9中以一个处理器 903为例)。 该集中控 制器中还可以包括存储器 904, 在本发明的一些实施例中, 输入装置 901、 输 出装置 902、 处理器 903和存储器 904可通过总线或其它方式连接, 其中, 图 9中以通过总线连接为例。
其中, 所述输入装置 901, 用于按照处理器 903的操作, 接收网络节点 与组网中其他集中控制器发送的信息;
所述输出装置 902, 用于按照处理器 903的操作, 发送信息给网络节点和 组网中其他集中控制器;
通过调用存储器 904存储的操作指令, 处理器 903, 用于执行如下操作: 接收第一网络中的网络节点发送的对第一业务的业务查询请求,所述业务 查询请求用于查询所述第一业务的服务质量 QoS信息,所述 QoS信息包括 QoS 参数以及业务等级, 所述集中控制器为所述第一网络的集中控制器, 所述第一 网络为组网的一个子网, 所述组网由多个子网构成, 所述第一业务为在所述组 网中经过所述第一网络传输的一个业务,所述第一网络中的网络节点为所述第 一业务在所述第一网络中传输时经过的网络节点;
将所述第一业务的 QoS信息发送给所述第一网络中的网络节点, 以使得 所述第一网络中的网络节点按照所述业务等级保证所述第一业务的 QoS参数, 其中, 一个业务的业务等级越高, 越优先保证该业务的 QoS参数;
将所述第一业务的 QoS信息共享给所述组网中其他网络的集中控制器, 以使得其他网络中的网络节点按照所述业务等级保证所述第一业务的 QoS参 数;
本发明的一些实施例中, 该处理器 903, 还用于执行如下操作:
查询是否存储有所述第一业务的 QoS信息;
当确定没有存储所述第一业务的 QoS信息时, 向运营支撑系统 0SS获取 所述第一业务的 QoS信息; 本发明的一些实施例中, 该处理器 903, 还用于执行如下操作: 接收所述组网中其他网络的集中控制器共享的所述第一业务的 QoS信息; 本发明的一些实施例中, 该处理器 903, 还用于执行如下操作:
按照所述第一业务的业务等级修改所述第一业务在所述第一网络中的 QoS优先级, 使得业务等级越高, QoS优先级越高;
本发明的一些实施例中, 该处理器 903, 具体用于执行如下操作: 查询业务维护表中是否存储有所述第一业务的 QoS信息;
当执行所述当确定没有存储所述第一业务的 QoS信息时, 向运营支撑系 统 0SS获取所述第一业务的 QoS信息的操作时, 所述处理器 903具体执行如 下操作:
当确定所述业务维护表中没有存储所述第一业务的 QoS信息时, 向运营 支撑系统 0SS获取所述第一业务的 QoS信息的操作;
该处理器 903还用于执行如下操作:
当确定所述业务维护表中没有存储所述第一业务的 QoS信息时, 在所述 业务维护表中添加所述第一业务的 QoS信息作为新条目。
所属领域的技术人员可以清楚地了解到, 为描述的方便和简洁, 上述描述 的系统,装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程, 在此不再赘述。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统, 装置和方 法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅是示意性 的, 例如, 所述单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可以有另 外的划分方式, 例如多个单元或组件可以结合或者可以集成到另一个系统,或 一些特征可以忽略, 或不执行。 另一点, 所显示或讨论的相互之间的耦合或直 接辆合或通信连接可以是通过一些接口, 装置或单元的间接辆合或通信连接, 可以是电性, 机械或其它的形式。 单元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地方, 或者 也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部 单元来实现本实施例方案的目的。 另外, 在本发明各个实施例中的各功能单元可以集成在一个处理单元中, 也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元 中。上述集成的单元既可以釆用硬件的形式实现,也可以釆用软件功能单元的 形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售 或使用时, 可以存储在一个计算机可读取存储介质中。 基于这样的理解, 本发 明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全 部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储 介质中, 包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器, 或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。 而前述 的存储介质包括: U盘、 移动硬盘、 只读存储器(ROM, Read-Only Memory ), 随机存取存储器(RAM, Random Access Memory ), 磁碟或者光盘等各种可以 存储程序代码的介质。
以上所述, 以上实施例仅用以说明本发明的技术方案, 而非对其限制; 尽 管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理 解: 其依然可以对前述各实施例所记载的技术方案进行修改, 或者对其中部分 技术特征进行等同替换; 而这些修改或者替换, 并不使相应技术方案的本质脱 离本发明各实施例技术方案的精神和范围。

Claims

权 利 要 求
1、 一种业务服务质量保证方法, 其特征在于, 包括:
集中控制器接收第一网络中的网络节点发送的对第一业务的业务查询请 求,所述业务查询请求用于查询所述第一业务的服务质量 QoS信息,所述 QoS 信息包括 QoS参数以及业务等级, 所述集中控制器为所述第一网络的集中控 制器, 所述第一网络为组网的一个子网, 所述组网由多个子网构成, 所述第一 业务为在所述组网中经过所述第一网络传输的一个业务,所述第一网络中的网 络节点为所述第一业务在所述第一网络中传输时经过的网络节点;
所述集中控制器将所述第一业务的 QoS信息发送给所述第一网络中的网 络节点,以使得所述第一网络中的网络节点按照所述业务等级保证所述第一业 务的 QoS参数, 其中, 一个业务的业务等级越高, 越优先保证该业务的 QoS 参数;
所述集中控制器将所述第一业务的 QoS信息共享给所述组网中其他网络 的集中控制器,以使得其他网络中的网络节点按照所述业务等级保证所述第一 业务的 QoS参数。
2、 根据权利要求 1所述的方法, 其特征在于, 所述集中控制器接收第一 网络中的网络节点发送的对第一业务的业务查询请求的步骤之后,所述集中控 制器将所述第一业务的 QoS信息发送给所述第一网络中的网络节点的步骤之 前还包括:
所述集中控制器查询是否存储有所述第一业务的 QoS信息;
若没有存储所述第一业务的 QoS信息, 则所述集中控制器向运营支撑系 统 0SS获取所述第一业务的 QoS信息。
3、 根据权利要求 2所述的方法, 其特征在于, 所述 QoS信息由用户办理 业务时定制, 记录在运营商的所述 0SS中。
4、 根据权利要求 1至 3中任一项所述的方法, 其特征在于, 所述集中控 制器将所述第一业务的 QoS信息发送给所述第一网络中的网络节点的步骤之 前还包括:
所述集中控制器接收所述组网中其他网络的集中控制器共享的所述第一 业务的 QoS信息。
5、 根据权利要求 1至 4中任一项所述的方法, 其特征在于, 所述集中控 制器将所述第一业务的 QoS信息发送给所述第一网络中的网络节点的步骤之 前还包括:
所述集中控制器按照所述第一业务的业务等级修改所述第一业务在所述 第一网络中的 QoS优先级, 使得业务等级越高, QoS优先级越高;
所述按照所述业务等级保证所述第一业务的 QoS参数具体包括: 按照所述第一业务在所述第一网络中的 QoS优先级保证所述第一业务的 QoS参数, 其中, 一个业务的 QoS优先级越高, 越优先保证该业务的 QoS参 数。
6、 根据权利要求 2至 5中任一项所述的方法, 其特征在于, 所述集中控 制器查询是否存储有所述第一业务的 QoS信息具体包括:
所述集中控制器查询业务维护表中是否存储有所述第一业务的 QoS信息; 所述若没有存储所述第一业务的 QoS信息具体包括:
若所述业务维护表中没有存储所述第一业务的 QoS信息;
所述集中控制器将所述第一业务的 QoS信息共享给所述组网中其他网络 的集中控制器的步骤之前还包括:
当确定所述业务维护表中没有存储所述第一业务的 QoS信息时, 所述集 中控制器在所述业务维护表中添加所述第一业务的 QoS信息作为新条目。
7、 一种集中控制器, 其特征在于, 包括:
第一接收模块,用于接收第一网络中的网络节点发送的对第一业务的业务 查询请求, 所述业务查询请求用于查询所述第一业务的服务质量 QoS信息, 所述 QoS信息包括 QoS参数以及业务等级, 所述集中控制器为所述第一网络 的集中控制器, 所述第一网络为组网的一个子网, 所述组网由多个子网构成, 所述第一业务为在所述组网中经过所述第一网络传输的一个业务,所述第一网 络中的网络节点为所述第一业务在所述第一网络中传输时经过的网络节点; 发送模块, 用于将所述第一业务的 QoS信息发送给所述第一网络中的网 络节点,以使得所述第一网络中的网络节点按照所述业务等级保证所述第一业 务的 QoS参数, 其中, 一个业务的业务等级越高, 越优先保证该业务的 QoS 参数; 共享模块, 用于将所述第一业务的 QoS信息共享给所述组网中其他网络 的集中控制器,以使得其他网络中的网络节点按照所述业务等级保证所述第一 业务的 QoS参数。
8、 根据权利要求 7所述的集中控制器, 其特征在于, 所述集中控制器还 包括:
查询模块, 用于查询是否存储有所述第一业务的 QoS信息;
获取模块, 用于当所述查询模块查询到没有存储所述第一业务的 QoS信 息时, 向运营支撑系统 0SS获取所述第一业务的 QoS信息。
9、 根据权利要求 7或 8所述的集中控制器, 其特征在于, 所述集中控制 器还包括:
第二接收模块,用于接收所述组网中其他网络的集中控制器共享的所述第 一业务的 QoS信息。
10、 根据权利要求 7至 9中任一项所述的集中控制器, 其特征在于, 所述 集中控制器还包括:
修改模块,用于按照所述第一业务的业务等级修改所述第一业务在所述第 一网络中的 QoS优先级, 使得业务等级越高, QoS优先级越高;
所述发送模块具体用于, 将所述第一业务的 QoS信息发送给所述第一网 络中的网络节点,以使得所述第一网络中的网络节点按照所述第一业务在所述 第一网络中的 QoS优先级保证所述第一业务的 QoS参数, 其中, 一个业务的 QoS优先级越高, 越优先保证该业务的 QoS参数。
11、 根据权利要求 8至 10中任一项所述的集中控制器, 其特征在于, 所述查询模块具体用于, 查询业务维护表中是否存储有所述第一业务的
QoS信息;
所述获取模块具体用于,当所述查询模块查询到业务维护表中没有存储所 述第一业务的 QoS信息时,向运营支撑系统 0SS获取所述第一业务的 QoS信 息;
所述集中控制器还包括:
添加模块, 用于当确定所述业务维护表中没有存储所述第一业务的 QoS 信息时, 在所述业务维护表中添加所述第一业务的 QoS信息作为新条目。
12、 一种集中控制器, 其特征在于, 包括:
输入装置, 输出装置和处理器;
所述输入装置, 用于按照处理器的操作, 接收网络节点与组网中其他集 中控制器发送的信息;
所述输出装置, 用于按照处理器的操作,发送信息给网络节点和组网中其 他集中控制器;
所述处理器, 用于执行如下操作:
接收第一网络中的网络节点发送的对第一业务的业务查询请求,所述业务 查询请求用于查询所述第一业务的服务质量 QoS信息,所述 QoS信息包括 QoS 参数以及业务等级, 所述集中控制器为所述第一网络的集中控制器, 所述第一 网络为组网的一个子网, 所述组网由多个子网构成, 所述第一业务为在所述组 网中经过所述第一网络传输的一个业务,所述第一网络中的网络节点为所述第 一业务在所述第一网络中传输时经过的网络节点;
将所述第一业务的 QoS信息发送给所述第一网络中的网络节点, 以使得 所述第一网络中的网络节点按照所述业务等级保证所述第一业务的 QoS参数, 其中, 一个业务的业务等级越高, 越优先保证该业务的 QoS参数;
将所述第一业务的 QoS信息共享给所述组网中其他网络的集中控制器, 以使得其他网络中的网络节点按照所述业务等级保证所述第一业务的 QoS参 数。
13、 根据权利要求 12所述的集中控制器, 其特征在于, 所述处理器还用 于执行如下操作:
查询是否存储有所述第一业务的 QoS信息;
当确定没有存储所述第一业务的 QoS信息时, 向运营支撑系统 0SS获取 所述第一业务的 QoS信息。
14、 根据权利要求 12或 13所述的集中控制器, 其特征在于, 所述处理器 还用于执行如下操作:
接收所述组网中其他网络的集中控制器共享的所述第一业务的 QoS信息。
15、 根据权利要求 12至 14中任一项所述的集中控制器, 其特征在于, 所 述处理器还用于执行如下操作: 按照所述第一业务的业务等级修改所述第一业务在所述第一网络中的
QoS优先级, 使得业务等级越高, QoS优先级越高。
16、 根据权利要求 13至 15中任一项所述的集中控制器, 其特征在于, 当执行所述查询是否存储有所述第一业务的 QoS信息的操作时, 所述处 理器具体执行如下操作:
查询业务维护表中是否存储有所述第一业务的 QoS信息;
当执行所述当确定没有存储所述第一业务的 QoS信息时, 向运营支撑系 统 0SS获取所述第一业务的 QoS信息的操作时, 所述处理器具体执行如下操 作:
当确定所述业务维护表中没有存储所述第一业务的 QoS信息时, 向运营 支撑系统 0SS获取所述第一业务的 QoS信息的操作;
所述处理器还执行如下操作:
当确定所述业务维护表中没有存储所述第一业务的 QoS信息时, 在所述 业务维护表中添加所述第一业务的 QoS信息作为新条目。
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