WO2018077304A1 - Procédé, appareil et système de traitement d'informations de service - Google Patents

Procédé, appareil et système de traitement d'informations de service Download PDF

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Publication number
WO2018077304A1
WO2018077304A1 PCT/CN2017/108682 CN2017108682W WO2018077304A1 WO 2018077304 A1 WO2018077304 A1 WO 2018077304A1 CN 2017108682 W CN2017108682 W CN 2017108682W WO 2018077304 A1 WO2018077304 A1 WO 2018077304A1
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WIPO (PCT)
Prior art keywords
service
information
controller
node
bgp
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PCT/CN2017/108682
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English (en)
Chinese (zh)
Inventor
张征
彭少富
金飞蔡
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中兴通讯股份有限公司
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Publication of WO2018077304A1 publication Critical patent/WO2018077304A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]

Definitions

  • the present disclosure relates to the field of communications technologies, and, for example, to a service information processing method, apparatus, and system.
  • SDN Software Defined Network
  • NFV Network Function Virtualization
  • the resources can be fully flexibly shared, and the rapid development and deployment of new services can be realized.
  • the automatic deployment, elastic scaling, fault isolation, and self-healing can be performed based on actual service requirements.
  • Combining SDN and NFV technologies with the Internet's services can provide better services, but it also places higher demands on the network.
  • Network transmission technologies generally include IPv4, IPv6, Multi-Protocol Label Switch (MPLS), optical switching, and Bit Index Explicit Replication (BIER).
  • MPLS Multi-Protocol Label Switch
  • BIER Bit Index Explicit Replication
  • the network can provide the delivery service of the service, so the routing protocol is the most important component.
  • the internal routing protocols of the network include the Interior Gateway Protocol (IGP) protocol.
  • the IGP includes OSPF Open Shortest Path First (OSPF) and Intermediate System-to-Intermediate System (ISIS). ) Agreement, etc.
  • the Border Gateway Protocol (BGP) is a routing protocol used to handle inter-domain routing and can support Internet-level routing. As the network changes, BGP technology is constantly adapting and developing.
  • the BGP-Link-State (BGP-LS) technology is used to transmit information such as specific links in the network to various application layer controllers.
  • the controller can be a virtual control module, for example, including an application layer.
  • Application-Layer Traffic Optimization (ALTO) module and Link Computation Elements (PCE), etc. so that the control layer can grasp the link information of the entire network, and can better plan the transmission of service data packets. .
  • ATO Application-Layer Traffic Optimization
  • PCE Link Computation Elements
  • the controller cannot implement unified management of service data packet transmission, the security of service data packet transmission is low, the control capability of the controller is low, and the scheduling of network resources is not flexible.
  • the present disclosure provides a service information processing method, apparatus, and system, which can solve the problem that the controller cannot obtain service related information in the related art.
  • the present disclosure provides a service information processing method, which may include: the controller receives service information sent in the form of a Border Gateway Protocol BGP extension, where the service information is information required to indicate that a service function is performed;
  • the controller performs, according to the service information, a service data packet corresponding to the service information. Reason.
  • the present disclosure further provides a service information processing apparatus, which can be applied to a controller, comprising: a receiving module, configured to receive service information sent in a form of a Border Gateway Protocol BGP extension, wherein the service information is used to indicate execution Information required for business functions;
  • the processing module is configured to process the service data packet corresponding to the service information according to the service information.
  • the present disclosure also provides a service information processing system, including:
  • the service publisher is connected to the controller through the border gateway protocol BGP, and is configured to send the first service information to the controller in the form of a BGP extension, where the service information is used to indicate information required to perform the service function;
  • the subscriber is connected to the controller through the BGP, and is configured to send the second service information to the controller in the form of a BGP extension.
  • the controller is configured to perform the service data packet corresponding to the service information according to the service information. Processing, where the service information includes the first service information and the second service information.
  • the present disclosure also provides a computer readable storage medium storing computer executable instructions for performing any of the methods described above.
  • the present disclosure also provides a control device, such as a controller, including one or more processors, a memory, and one or more programs, the one or more programs being stored in the memory when being one or more When the processor executes, perform any of the above methods.
  • a control device such as a controller, including one or more processors, a memory, and one or more programs, the one or more programs being stored in the memory when being one or more When the processor executes, perform any of the above methods.
  • the present disclosure also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions are executed by a computer, Having the computer perform any of the methods described above.
  • the controller can receive the service information sent by the BGP extension, and can perform the service data packet corresponding to the service information according to the service information. Therefore, the controller can obtain the service-related information to manage the service according to the acquired service-related information, thereby improving the scheduling of the network resources.
  • FIG. 1 is a flowchart of a method for processing service information provided by an embodiment
  • FIG. 2 is a flowchart of a method for sending a message according to an embodiment
  • FIG. 3 is a structural block diagram of a service information processing apparatus according to an embodiment
  • FIG. 4 is a schematic diagram of a common network provided by an embodiment
  • FIG. 5 is a flowchart of a general service process provided by an embodiment
  • FIG. 6 is a flow chart of service processing with performance measurement requirements and the like provided by an embodiment
  • FIG. 8 is a flowchart of a service subscription revocation process according to an embodiment
  • FIG. 9 is a flowchart of a service release revocation process according to an embodiment
  • FIG. 10 is a schematic diagram of a general format of service delivery according to an embodiment
  • FIG. 11 is a schematic diagram of MVPN network conference information release according to an embodiment
  • FIG. 12 is a schematic diagram of an IPTV service release according to an embodiment
  • FIG. 13 is a schematic diagram of a voice service release according to an embodiment
  • FIG. 14 is a schematic diagram of a format of a service release according to an embodiment
  • 15 is a schematic diagram of a format of a service release provided by another embodiment
  • 16 is a diagram showing an example of a service subscription provided by an embodiment
  • FIG. 17 is a diagram showing an example of a web conference service subscription provided by an embodiment
  • FIG. 18 is a diagram showing an example of service release revocation provided by an embodiment
  • FIG. 19 is a diagram showing an example of IPTV service release revocation provided by an embodiment
  • 20 is a diagram showing an example of service subscriber information provided by an embodiment
  • 21 is a diagram showing an example of IPTV service subscriber information provided by an embodiment
  • 22 is a diagram showing an example of service subscriber information provided by an embodiment
  • FIG. 23 is a schematic structural diagram of a network provided by an embodiment
  • FIG. 24 is a schematic structural diagram of a multi-domain aggregation network according to an embodiment
  • 25 is a schematic structural diagram of another network provided by an embodiment
  • FIG. 26 is a schematic diagram of a MVPN service providing network according to an embodiment
  • Figure 27 is a schematic diagram of still another structure provided by an embodiment
  • FIG. 28 is a schematic structural diagram of hardware of a control device according to an embodiment.
  • FIG. 1 is a flowchart of a service information processing method provided in this embodiment. As shown in FIG. 1 , the process may include the following steps:
  • the controller receives the service information transmitted in the form of a Border Gateway Protocol BGP extension, wherein the service information is information required to indicate that the service function is performed.
  • the BGP extension may be configured to add the service information to the information transmitted by the BGP protocol.
  • the node in the network may send the service information to the controller in the form of BGP extension, where the node is the network that can obtain the service information.
  • Nodes which can include subscribers to the business and publishers of the business.
  • step 104 the controller processes the service data packet corresponding to the service information according to the service information.
  • the controller can process the corresponding data message according to the service information sent by the subscriber of the service and the publisher of the service.
  • the controller can receive the service information sent by the BGP extension, and can process the service data packet corresponding to the service information according to the service information, so as to solve the problem that the controller cannot obtain the service-related information, and implement the controller.
  • the service can be managed according to the acquired service related information, thereby improving the scheduling of the network resources.
  • the controller processes the service data packet corresponding to the service information according to the service information, and may include at least one of the following: the controller provides the specified network transmission mode for the service data packet; and the controller delivers the service The forwarding policy of the service traffic corresponding to the data packet.
  • the controller may determine a network transmission manner of the service-related data packet according to the service information, and notify the subscriber of the service and the publisher of the service of the determined network transmission manner, so as to enable the subscriber of the service and the publisher of the service.
  • the information is exchanged according to the network transmission mode; the controller may further determine a forwarding policy of the service traffic of the data packet according to the service information, and send the policy to the publisher of the service, and the publisher of the service according to the forwarding policy of the service traffic, corresponding
  • the service data packet is sent to the subscriber of the service, and the controller can also send the forwarding policy of the service traffic to the subscriber of the service and the publisher of the service, so that the publisher of the service and the subscriber of the service can forward the policy according to the service traffic.
  • the information is exchanged, such as a tunnel or a channel for constructing a data transmission.
  • the actual processing process can process the service data packet more flexibly according to the usage requirement, which is not limited in this embodiment.
  • the network transmission mode includes, but is not limited to, IPv4, IPv6, BIER, MPLS, and multiple tunnel transmission modes.
  • the service traffic policy may include the service chain information of the service corresponding to the service data packet.
  • the controller may be implemented by at least one of software and hardware.
  • the controller includes at least one of the following: a controller applied to the software-defined network SDN, a control device for controlling the service function, and virtual control. Equipment and virtual control modules.
  • controllers may be configured in different devices according to the requirements of the service deployment.
  • the controller may be configured in a related device of a router, a base station, a server, or a large service center, which is not limited in this embodiment.
  • the service information includes at least one of the following: a service release information, a service subscription information, a service revocation information, a service subscriber information, a service publisher information, a security encryption information, and a network transmission mode information.
  • the bandwidth information, the virtual private network (VPN) information, the tunnel establishment requirement information, the bandwidth guarantee information, and the traffic policy information are not limited in this embodiment.
  • the form of the BGP extension includes one of the following: a BGP-based protocol extension and a protocol extension based on a border routing link state BGP-LS.
  • the BGP extension is implemented in the form of a Type-Length-Value (TLV).
  • TLV Type-Length-Value
  • the BGP extension can be used to transmit service-related information in the network, so that the controller can perform network planning and management according to the service-related information, realize high management and high control of the network, and implement high-security information transmission. Improve the scheduling of network resources.
  • FIG. 2 is a flowchart of a method for sending a message according to the embodiment. As shown in FIG. 2, the method may include the following steps:
  • the service publisher and the service subscriber may send the service related information to the controller in the form of a BGP extension.
  • the BGP extension may be in the form of a BGP-based protocol extension or a BGP-LS-based protocol extension.
  • the service publisher may send the service release information to the controller, and the service subscriber may send the service subscription information to the controller.
  • the controller may be a controller in an SDN scenario or a control related to service management.
  • the device or the control module, or the virtual control device or the module may be a combination of the above-mentioned controllers, control modules or control devices, which is not limited in this embodiment.
  • the BGP extension may be an extension of the form of TLV (Type, Length, Value), or other extensions that can be used for the identification of service information.
  • the service related information may include at least one of the following information: a service release information, a service subscription information, a service revocation information, a service subscriber information, a service publisher information, and a change thereof, and the like, including
  • the content of the service information may also include security encryption information, network transmission mode information, bandwidth information, VPN information, service provider identification information, tunnel establishment requirement information, bandwidth guarantee information, traffic policy information, and user information.
  • implementing the BGP extension by using a type length value TLV form includes:
  • At least one of service type information, service identification information, and service characteristic information is added to the information transmitted by the BGP protocol in the form of an LTV.
  • the service type information includes one of an interactive network television IPTV service, a voice service, a service function chain SFC service, and a domain name service;
  • the feature information of the service includes at least one of virtual private network VPN information, multicast virtual private network MVPN information, domain, bandwidth information, encrypted security information, and tunnel establishment information.
  • step 204 the controller receives the service related information sent in the form of a BGP extension.
  • the BGP extension may be in the form of a BGP-based protocol extension or a BGP-LS-based protocol extension.
  • the controller may be from a controller in an SDN scenario, or other control device or module related to a service application.
  • the service related information may include information of the service publisher and a subscriber letter of the service. interest.
  • the service related information may further include security encryption information, network transmission mode information, bandwidth information, VPN information, service provider identification information, user information, and the like.
  • step 206 the controller processes the service data packet according to the service related information.
  • the processing of the service data packet may include sending the service data packet to the service subscriber, and may also include providing a specified network transmission mode for the packet, and providing security encryption information and bandwidth guarantee for the packet, or The service traffic policy corresponding to the service data packet.
  • FIG. 3 is a structural block diagram of a service information processing apparatus according to this embodiment. As shown in FIG. 3, the apparatus may include:
  • the receiving module 30 is configured to receive the service information sent in the form of a Border Gateway Protocol BGP extension, where the service information is information required to indicate that the service function is performed;
  • the processing module 32 is configured to process the service data packet corresponding to the service information according to the service information.
  • the receiving module 30 can receive the service information sent in the form of the BGP extension, and the processing module 32 can process the service data packet corresponding to the service information according to the service information, which can solve the related technology, and the controller cannot obtain the service related information.
  • the problem of information enables the controller to manage the service according to the acquired service-related information, thereby improving the scheduling of network resources.
  • the processing module is further configured to: perform a following operation, and provide a specified network transmission mode for the service data packet; and send a forwarding policy of the service traffic corresponding to the service data packet.
  • the controller includes at least one of the following: a controller applied to the software defined network SDN, a control device for controlling the service function, a virtual control device, and a virtual control module.
  • the service information includes at least one of the following: a service release information, a service subscription information, a service revocation information, a service subscriber information, a service publisher information, a security encryption information, and a network transmission mode.
  • Information bandwidth information, virtual private network VPN information, tunnel establishment requirement information, bandwidth guarantee information, and traffic policy information.
  • the above multiple modules may be implemented by software or hardware.
  • the above modules are all located in the same processor, or the plurality of modules are respectively located in different processors in any combination, but are not limited thereto.
  • a service information processing system which may include:
  • the service publisher is connected to the controller through the border gateway protocol BGP, and is configured to send the first service information to the controller in the form of a BGP extension, where the service information is used to indicate information required to perform the service function.
  • the service subscriber is connected to the controller through BGP, and is configured to send the second service information to the controller in the form of BGP extension.
  • the first service information is service release information
  • the second service information is service subscription information
  • the controller is configured to process the service data packet corresponding to the service information according to the service information, where the service information includes the first service information and the second service information.
  • the controller can receive the service information sent in the form of BGP extension, and can process the service data packet corresponding to the service information according to the service information.
  • the controller can implement the management of the service according to the obtained service-related information, thereby improving the scheduling of the network resources.
  • FIG. 4 is a schematic diagram of a network architecture provided by the embodiment, which is composed of an intermediate node and an edge node. Because of the development of SDN or NFV technology, centralized control through the controller can improve the security and reliability of the network and improve the utilization of the network. For the service information transmitted by the network, it is usually only possible to adopt an interaction mode between the edge nodes, and the edge node manages and interacts with the service information, and performs corresponding processing, and no channel is sent to the controller, so that the controller cannot Business information is managed.
  • the information interaction between the edge nodes is usually based on the full connection of the edge nodes.
  • the full connection method leads to a large consumption of resources and the efficiency of information interaction. low.
  • the route reflection mechanism is introduced in the BGP protocol to implement the reflection function of the routing information.
  • the reflection principle may cause partial routing information to be lost, the reflection node itself becomes a performance bottleneck.
  • the interaction of service information is implemented by the BGP reflection function and does not conform to the layering principle of the network.
  • the service information communication mechanism between the edge node and the controller is established, and the service information is transmitted to the controller to implement the service advertisement and subscription, so that the edge nodes do not need to exchange business information, but are controlled by
  • To control the release and subscription of services it is better to achieve business control, network security is higher, network resource scheduling is more intelligent, and it is more in line with the development trend of the network.
  • the controller may be a physical device, or may be a virtual control module or a virtual control device. This embodiment is not limited thereto, and is hereinafter abbreviated as a controller.
  • the extension definition can be performed according to the characteristics of the service. Different types of differences are made for different services. Among them, the unsubscribe and cancel business release can also be handled in the same way as the business release and subscription.
  • FIG. 5 is a flowchart of a service process provided by this embodiment. As shown in FIG. 5, the process may include the following steps:
  • step 502 the service publisher and the service subscriber establish a BGP connection with the controller, respectively.
  • connection may be in the form of a link.
  • step 504 after the BGP connection is successfully established, the service publisher sends the service release information to the controller through the BGP extension, and the service subscriber sends the service subscription information to the controller through the BGP extension.
  • step 506 after the controller processes the service information, the service association is performed.
  • the node in the network can serve as a service publisher or a service subscriber.
  • the controller can process the service information according to the management policy, and select a service publisher for all.
  • Service subscriber service; different service subscribers can also be assigned to different service publishers.
  • step 508 the controller sends the subscriber information to the service publisher.
  • step 510 the service publisher sends the service-related data traffic to the service subscriber according to the subscriber information sent by the controller.
  • FIG. 6 is a flowchart of a service process required for performance measurement and the like according to the embodiment. As shown in FIG. 6, the process may include the following steps:
  • step 602 the service publisher and the service subscriber establish a BGP connection with the controller, respectively.
  • step 604 after the BGP connection is successfully established, the service publisher sends the service release information to the controller through the BGP extension form, and the service subscriber sends the service subscription information to the controller through the BGP extension form.
  • the service subscription message may include performance measurement information, that is, when the service subscriber sends the service subscription information, it declares that it has performance measurement requirements.
  • step 606 after the controller processes the service information, the service publisher associates the service with the service subscriber.
  • the controller can subscribe to the service. Send the information of the business publisher.
  • step 608 the controller sends the subscriber information to the service publisher and the publisher information to the service subscriber.
  • step 610 the service publisher sends the service-related data traffic to the service subscriber according to the subscriber information sent by the controller, and indicates its own service publisher information in the data traffic.
  • the service publisher information may be an IP address of the service publisher, or other forms of identification information used to distinguish from other service publishing nodes.
  • FIG. 7 is another flow chart of service processing provided by this embodiment. As shown in FIG. 7, the process includes the following steps:
  • step 702 the service publisher and the service subscriber respectively establish a BGP connection with the controller.
  • step 704 after the BGP connection is successfully established, the service publisher sends the service release information to the controller through the BGP extension form, and the service subscriber sends the service subscription information to the controller through the BGP extension form.
  • step 706 after the controller processes the service information, the service publisher and the service subscriber are associated with each other to determine whether the service information is a service with special requirements, such as a service with high security requirements, or a specific tunnel is established. To protect the business of business information transmission.
  • step 708 if it is a service with higher security requirements, the controller sends the subscriber information to the service publisher, and the controller sends the key information to the service subscriber. If it is a service that needs to establish a specific tunnel to ensure the transmission of service information, the controller issues the subscriber information to the service publisher, and sends the publisher information to the service subscriber, and simultaneously sends the tunnel establishment information to the service publisher and Service subscribers, service publishers, and subscribers will interact with tunnel information to establish tunnels to secure service transmission.
  • the service publisher and the service subscriber can also perform key negotiation to ensure the transmitted data. Safe and reliable. Different service subscribers may also have different encryption or tunnel establishment requirements. The controller may issue different keys and tunnels to establish requirements for service publishers to implement fine-grained management of service data traffic.
  • step 710 if the service is a service with a high security requirement, the service publisher can directly use the key sent by the controller to encrypt the service-related data traffic, and then send it to the service subscriber, or the service publisher uses the service. After the subscriber negotiates the key, the service-related data traffic is encrypted and sent to the service subscriber.
  • the service publisher uses the tunnel established by the subscriber to transmit the service-related data traffic.
  • the service publisher and the subscriber establish a BGP-LS connection with the controller, and no separate BGP connection is established.
  • the other steps are the same as when connecting to BGP.
  • the controller may also deliver the network transmission mode of the service data packet according to the service requirement, so that the service publisher can transmit the service-related data traffic in a specific network transmission manner, where
  • the above network transmission methods include, but are not limited to, IPv4, IPv6, BIER, MPLS, and various tunnel transmission methods.
  • the order of the service release information and the service subscription information in this embodiment is not fixed.
  • the service release information does not have to be first, and the service subscription information is used.
  • the controller can store the service release information or the service subscription information after receiving the service release information. Used for subsequent processing.
  • FIG. 8 is a flowchart of processing a service subscription revocation provided in this embodiment. As shown in FIG. 8, the process may include the following steps:
  • step 802 when the service subscriber no longer needs a service related data traffic, the service subscription revocation information is sent to the controller.
  • step 804 after the controller processes the service subscription revocation information, if there are other service subscribers, the updated service subscriber information is sent to the service publisher. If no other service subscribers exist, the empty subscriber information is sent to the service publisher, so that the service publisher no longer sends the service related data traffic.
  • the updated service subscriber information may be obtained after the service subscriber that sends the service subscription revocation information is removed from the plurality of service subscriber information. If a special tunnel or encrypted channel is established between the service publisher and the service subscriber, the controller can also notify the service publisher and the service subscriber to tear down the established special tunnel or encrypted channel.
  • step 806 if there are other service subscribers present, the service publisher will continue to transmit service related data traffic to the updated service subscriber. If no other subscribers exist, the business publisher no longer transmits business-related data traffic.
  • FIG. 9 is a flowchart of a service release revocation process provided by this embodiment. As shown in FIG. 9, the process may include the following steps:
  • step 902 when the service publisher cannot send a service related data traffic, the service subscription revocation information is sent to the controller.
  • step 904 after the controller performs the service subscription revocation information processing, if no other publisher exists, the controller may send the service revocation information to the service subscriber.
  • the controller will notify the service publisher and the subscriber to tear down the established special tunnel or encrypted channel.
  • step 906 if there are other service publishers that publish the same service, the controller sends the updated subscriber information to the new service publisher.
  • the service publisher A sends the service traffic data to the service subscriber A
  • the service publisher B sends the service traffic data to the service subscriber B
  • the service publisher A sends the service revocation information to the controller
  • the controller can send the service.
  • the subscriber A and the service subscriber B are sent to the service publisher B as the updated service subscriber information, so that the service publisher B provides the service subscriber A with service traffic data, and ensures that the service subscriber A can receive the service traffic data normally.
  • the controller may also send a prompt message to the service subscriber to notify the service subscriber of the change information of the service publisher.
  • the controller notifies the service publisher and the service subscriber to establish a new special tunnel or encrypted channel.
  • step 908 the new service publisher sends the service related data traffic to the service subscriber.
  • the following embodiment is an example of the format of the interaction information when the service publisher, the service subscriber, and the controller interact with each other.
  • the description is in the format of the TLV, and may actually be another protocol extension release format.
  • FIG. 10 is a schematic diagram of a general format of the service publishing information provided in this embodiment.
  • a service type indicates a specific service, for example, It can be an IPTV service, a voice service, an SFC service, a domain name service, and the like.
  • the service ID is used to indicate the service number.
  • the common format can also include the feature data of the service, such as the VPN to which the service belongs, the Multicast Virtual Private Network (MVPN), the domain, and the service. Required bandwidth, etc.
  • MVPN Multicast Virtual Private Network
  • FIG. 11 is a schematic diagram of a format for publishing a MVPN network conference information according to the embodiment.
  • the service type indicates a multi-party conference information (Net meeting), and the service ID indicates a specific conference number (meeting ID), and an MVPN ID. Indicates the MVPN information to which the service belongs.
  • multiple participating nodes publish the format of the industry.
  • the information is sent to the controller, and both subscribe to the service.
  • the controller performs service association according to the service information, and the service subscriber information that is advertised to each node may include other node information of all participating conferences, and realize multi-party communication of the network conference. .
  • Figure 12 is a schematic diagram of the format of the IPTV service delivery information provided in this embodiment.
  • the service type indicates IPTV
  • the service ID is channel ID
  • the high-quality indicates the IPTV service.
  • Feature information It can also include more business information.
  • FIG. 13 is a schematic diagram of a format of a voice service delivery information according to the embodiment.
  • the advertisement information may include: a voice type, and a VPN information, such as a VPN ID, and peer information. It can also include encryption information. It can also include more business information.
  • the nodes that perform voice interactions advertise the service information of the format to the controller.
  • the controller performs service association according to the service information, and issues service subscriber information to both nodes to implement point-to-point voice services.
  • FIG. 14 is a schematic diagram of a format of a service delivery information according to the embodiment; as shown in FIG. 14, the service release information is a domain name server (DNS) information advertisement, and is used for publishing related service information of the DNS to the user. For example, online service information.
  • DNS domain name server
  • FIG. 15 is a schematic diagram of a format of another service delivery information provided by the embodiment, where the service release information is a service function chain (SFC) service information advertisement, and is used for publishing related service information applied to the SFC, including Not limited to business information such as firewalls, NAT translation and authentication services.
  • SFC service function chain
  • FIG. 16 is a schematic diagram of a format of a service subscription message provided by this embodiment, and FIG. 16 is a schematic diagram of The general format of the service subscription message.
  • the service type indicates the specific service, which can be IPTV service, voice service, SFC service, and domain name service.
  • the service identifier is used to indicate the service number.
  • the service subscription message may also include service feature data, such as a VPN, an MVPN, and a domain to which the service belongs.
  • FIG. 17 is a schematic diagram of a format of a network conference service subscription message according to the embodiment.
  • the service type indicates multi-party conference information
  • the conference ID indicates a specific conference number
  • the MVPN ID indicates the MVPN information to which the service belongs.
  • Other service subscription formats can adopt the information format defined in the service release process, and the format can be adapted, and will not be described here.
  • FIG. 18 is a schematic diagram of a format of a service release withdrawn information provided in this embodiment.
  • a service type indicates a specific service, and may be an IPTV service, a voice service, an SFC service, a domain name service, and the like.
  • the identifier is used to indicate the service number, and the service subscription revocation format is similar to the service release revocation format if the above embodiment is used.
  • FIG. 19 is a schematic diagram of a format of an IPTV service release revocation information provided in this embodiment.
  • a service type indicates an IPTV service
  • a channel ID indicates a specific channel number.
  • Other business release revocation formats can adopt the information format defined in the business release process, and the format can be adapted, and will not be described here.
  • FIG. 20 is a schematic diagram of the format of the subscriber info information provided by the embodiment, which is sent by the controller to the node device, where the node device is a related device of the service publisher.
  • FIG. 20 is a general format of service subscriber information, and the service type represents a specific service, and may be an IPTV service, a voice service, an SFC service, and a domain name service.
  • the service identifier is used to indicate the service number. This is followed by a list of specific subscribers, which can be the subscriber number, the subscriber's IP address, or other information used to identify subscribers.
  • FIG. 21 is a schematic diagram of a format of IPTV service subscriber information provided in this embodiment.
  • a service type indicates an IPTV service
  • a channel ID indicates a specific channel number.
  • Business characteristic data The service feature data may further include encapsulation information, for example, by encapsulating the information, by including at least one of high quality, security related information (security), key information (authentication-key), or encrypted content.
  • An IPv4 tunnel (IPv4-tunnel) transmits service information, and may also include information such as a tunnel ID.
  • the format of other types of service subscriber information may be in an information format defined in the service release process, and the format may be adaptively adjusted, and is not described here.
  • Figure 22 is a schematic diagram of the format of the service subscriber information provided in this embodiment.
  • the controller does not directly send the information of the service subscriber to the service publisher, but directly delivers the service based on the service.
  • the traffic information of the traffic can include the forwarding policy of the service type and service traffic.
  • the service publisher transmits the service-related data traffic according to the forwarding policy.
  • a variety of service types can be used in the information format defined in the business release process, and the format can be adapted, and will not be described here.
  • the controller may not directly deliver the information of the service publisher to the service subscriber, but deliver the forwarding policy based on the service traffic, and the service subscriber directly processes the service data traffic according to the forwarding policy.
  • the format of the service related information may be Network Layer Reachability Information (NLRI), and the new NLRI may be defined to be different from the existing NLRI, or the existing NLRI may be reused.
  • NLRI adds new type information to distinguish, or uses new attributes to transmit service related information.
  • the embodiment does not limit its form, and the new attribute and the new type information may include FIG. 10-22. Information shown.
  • FIG. 23 is a schematic diagram of the network structure provided by this embodiment.
  • the edge nodes may be from different Internet Service Providers (ISPs).
  • ISPs Internet Service Providers
  • node 1 belongs to ISP1
  • nodes 2 and 3 belong to ISP2.
  • Nodes 4 and 5 belong to ISP4, and node 6 belongs to ISP3.
  • Business management is performed by a controller device between different ISPs. Different nodes can also come from no The same domain is not limited in this embodiment.
  • both the node 1 and the node 4 are eligible for the same IPTV service.
  • the BGP extension can be used to advertise the IPTV-related service information.
  • Node 3 and Node 6 have the requirement to subscribe to the IPTV service.
  • the two can send the IPTV service subscription requirement to the controller.
  • the controller performs the processing of the IPTV service, according to the demand information of the nodes 3 and 6, the node 1 can be selected as the service publisher, and the information of the node 3 and the node 6 is sent to the node 1 as the service subscriber information.
  • the node 1 can send the IPTV-related service data traffic to the node 3 and the node 6 according to the IPTV service subscriber information received from the controller.
  • the service information advertised by node 1 has high-definition characteristics
  • the service information advertised by node 4 has no high-definition characteristics
  • the subscription information of node 3 has high-definition characteristics
  • the subscription information advertised by node 6 does not have high-definition characteristics
  • the controller The subscriber information including the information of the node 3 can be sent to the node 1 according to the different needs of the service subscriber, and the subscriber information including the information of the node 6 is sent to the node 4, thereby realizing the differentiated service for the same service with different characteristics. . If there are different service encryption information and tunneling requirements, the service can be implemented in a similar manner.
  • the controller can allow multiple service publishers to simultaneously publish services to different service subscribers according to the burden of the network link, so that network resources can be fully utilized and services can be guaranteed. quality.
  • the controller implements the security control, and may not directly deliver the service-related information to the service publisher or the service subscriber, but deliver the traffic forwarding policy to the service publisher or the service subscriber, and the service publisher directly completes the traffic forwarding policy.
  • the forwarding of service-related data traffic, the same subscriber directly receives the corresponding service data traffic according to the traffic forwarding policy.
  • FIG. 24 is a schematic structural diagram of a multi-domain aggregation network according to the embodiment.
  • edge nodes may be from different domains, and communication security requirements between domains are high. Can be controlled by a high level Controller to control communication. Assume that there is a need for multi-party voice calls for encryption between multiple domains.
  • each edge node When the service is processed, each edge node establishes a BGP connection with the controller;
  • Each edge node issues voice service information to the controller, and the voice service information carries the same service number; each edge node subscribes the voice service to the controller, and the security encryption request is included in the service subscription information; the controller collects After the published voice service information and the service subscription information, the service processing and the service association are performed, and the subscriber information including the other node information is sent to each node that publishes the service.
  • the corresponding voice service subscriber information sent to the node 1 may include information of the edge node 2 to the edge node 6, and may also include security key information.
  • the corresponding voice service subscriber information sent to the node 2 may include information of the edge node 1, the edge node 3 to the edge node 6, and may also include security key information.
  • the inner edge node can also send the tunnel and the bandwidth information to be guaranteed to the controller, and the controller sends the subscriber information to each one.
  • the information about the tunnel and bandwidth requirements that need to be established is sent at the same time.
  • the tunnel is established according to the bandwidth requirement. After the tunnel is established, the related encrypted voice traffic can be exchanged on a specific tunnel. Highly controllable secure multi-party interworking voice service information transmission.
  • FIG. 25 is a schematic diagram of another network structure provided by this embodiment.
  • a server device that provides DNS service such as a DNS server, is connected to the network connected to the node 1, and the network connected to the node 5 and the node 6 needs a DNS.
  • Business users such as a DNS server.
  • node 1, node 5, and node 6 When performing business processing, node 1, node 5, and node 6 establish a BGP connection with the controller, respectively.
  • Node 1 issues DNS service information to the controller, and node 5 and node 6 also send DNS service subscription information to the controller, respectively.
  • the controller collects the information about the service and performs the analysis processing and the service association.
  • the controller sends the subscriber information including the information of the node 5 and the node 6 to the node 1, and delivers the service publisher information including the information of the node 1.
  • the node 5 and the node 6 use the DNS service according to the provided DNS service distribution information.
  • the DNS service there may be a device that attacks the DNS server, or because the security policy requires the DNS server to continue to provide the DNS service at the previous address, but needs to perform a jump. Transmitting the service information of the address information to the controller, and the controller sends the DNS server hopping address to the node 5 and the node 6 according to the service association information, that is, the service publisher information sent by the controller to the node 5 and the node 6 includes the hopping DNS server address. Let node 5 and node 6 use the DNS service based on the new service publisher information.
  • FIG. 26 is a schematic diagram of the network structure of the MVPN service provided by the embodiment.
  • the network connected to the node 1 and the node 2 are respectively MVPN1 and MVPN2, and both MVPN1 and MVPN2 can provide live broadcast services.
  • the network connected to node 4, node 5, and node 6 respectively has users who need live broadcast services in MVPN.
  • each node can establish a BGP-LS connection with the controller.
  • the node 1 and the node 2 may send related release information of the live broadcast service to the controller, and may include MVPN information to which the service belongs, and the content of the live program included.
  • Node 4, Node 5 and Node 6 can send MVPN live broadcast subscription information to the controller.
  • the controller collects the information, the service association is performed. Due to the quality requirements of the live broadcast service, the controller can request the network to provide corresponding bandwidth guarantee.
  • the controller sends the subscriber information and the publisher information to each node, Carrying demand-building information for point-to-multipoint tunnels.
  • node 1 After each node receives the information sent by the controller, node 1 will know that node 5 and node 6 need the corresponding live service, and node 1 directly sends the point-to-multipoint tunnel establishment request to node 5 and the node. Point 6, then node 5 and node 6 establish a point-to-multipoint tunnel with node 1 based on the tunnel information. Similarly, node 2 can know that node 4 subscribes to the live traffic of node 2, so node 2 and node 4 establish a point-to-point tunnel. After the tunnel is established, node 1 uses a point-to-multipoint tunnel, and node 2 uses a point-to-point tunnel to deliver live traffic.
  • the node 3 also subscribes to the live broadcast service of the MVPN2. After the node 3 initiates a subscription request to the controller, the controller performs service association and notifies the relevant node of the subscriber information and the publisher information. For example, if node 2 knows that the subscriber of the live broadcast service includes node 3 and node 4, node 2 initiates a point-to-multipoint tunnel setup request to node 3 and node 4, establishing a point-to-multipoint tunnel, at a new point-to-multipoint point. Before the tunnel is established, the service is still sent through the previously established tunnel. After the new tunnel is established, node 2 sends service information to node 3 and node 4 through a point-to-multipoint tunnel.
  • the node If the tunnel establishment is unsuccessful due to insufficient bandwidth or some reasons during the tunnel establishment process, the node notifies the controller of the unsuccessful service message, and the service unsuccessful message received by the controller adjusts the service association.
  • the topology of the network supporting multiple transmission technologies is different, and the controller can adjust the transmission strategy of the new service information according to this, for example, the controller can notify node 2, and node 3 and node 4 use the bit index to display the replication ( The Bit Indexed Explicit Replication (BIER) technology performs service-related data traffic delivery, thereby enabling Node 2 to issue live broadcast services to Node 3 and Node 4.
  • BIER Bit Indexed Explicit Replication
  • the MVPN network can also be a VPN network, including Layer 3 VPN (L3VPN) and Layer 2 VPN (L2VPN).
  • L3VPN Layer 3 VPN
  • L2VPN Layer 2 VPN
  • the technologies used by the network may include various types of networks, such as IPv4, IPv6, MPLS (Multi-Protocol Label Switch), optical switching network, and BIER (Bit Index Explicit Replication), which are not limited herein.
  • IPv4 IPv6, MPLS (Multi-Protocol Label Switch), optical switching network, and BIER (Bit Index Explicit Replication), which are not limited herein.
  • MPLS Multi-Protocol Label Switch
  • BIER Bit Index Explicit Replication
  • FIG. 27 is a schematic diagram of another network structure provided by the embodiment, where the node 3 is used to connect to the Internet (Internet) egress router, the user of node 2 has the need to access the Internet.
  • node 3 is used as a service publisher, and node 2 is used as a service subscriber to implement communication.
  • Service Function Chaining (SFC) technology can be used to achieve fine control of service data traffic, and devices providing multiple types of services are not centralized in one device or one local area network. internal.
  • SFC Service Function Chaining
  • the network connected to the node 1 can provide a network address translation (NAT) function
  • the node 4 can provide a firewall function
  • the node 5 can provide an authentication function, and it is required that the user of the node 2 accesses the Internet traffic.
  • the NAT address translation can be sent to the node 3 to access the Internet network.
  • the node 1 issues the NAT service to the controller
  • the node 4 issues the firewall service to the controller
  • the node 5 issues the authentication service to the control.
  • Node 3 issues Internet access services to the controller.
  • Node 2 also communicates with the controller. In addition to subscribing to Internet services, Node 2 also sends authentication requirements and NAT service requirements.
  • the service information of the notification node 2 in addition to the Internet access exit information of the node 3, carries the NAT service information of the node 1 and the node 5 authentication service information, and the node 2 generates the subscribed
  • the service chain of the service is the authentication service passing through the node 5, and then passes through the NAT service of the node 1, and finally is sent to the Internet service of the node 3.
  • the controller can also directly send the arranged service chain information to the node 2, so that the node 2 sends the relevant data traffic according to the delivered service chain.
  • the service related information is transmitted to the controller or the control module through the BGP extension, and the foregoing multiple embodiments can be used in combination to implement high-security information transmission, so that the network has high management and High control, improve network resource scheduling, and play an important role in promoting the development of Internet technologies and networks.
  • This embodiment also provides a storage medium.
  • the storage medium can be set to be stored for execution
  • the embodiment further provides a computer readable storage medium storing computer executable instructions for performing any of the above methods.
  • FIG. 28 it is a hardware structure diagram of a control device provided by this embodiment.
  • the control device may be a controller that passes in the foregoing embodiment.
  • the control device includes: a processor. 2810 and memory 2820; may also include a Communication Interface 2830 and a bus 2840.
  • the processor 2810, the memory 2820, and the communication interface 2830 can complete communication with each other through the bus 2840.
  • Communication interface 2830 can be used for information transfer.
  • the processor 2810 can invoke logic instructions in the memory 2820 to perform any of the methods of the above-described embodiments.
  • the memory 2820 may include a storage program area and a storage data area, and the storage program area may store an operating system and an application required for at least one function.
  • the storage data area can store data and the like created according to the use of the control device.
  • the memory may include, for example, a volatile memory of a random access memory, and may also include a non-volatile memory. For example, at least one disk storage device, flash memory device, or other non-transitory solid state storage device.
  • the logic instructions in the memory 2820 described above can be implemented in the form of software functional units and sold or used as separate products, the logic instructions can be stored in a computer readable storage medium.
  • the technical solution of the present disclosure may be embodied in the form of a computer software product, which may be stored in a storage medium, and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) Performing the method of the embodiment All or part of the steps.
  • the storage medium may be a non-transitory storage medium or a transitory storage medium.
  • the non-transitory storage medium may include: a U disk, a mobile 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. medium.
  • All or part of the processes in the foregoing embodiment may be completed by a computer program indicating related hardware, and the program may be stored in a non-transitory computer readable storage medium, and when the program is executed, may include the above The flow of an embodiment of the method.
  • the present disclosure provides a service service information processing method, apparatus, and system, which enable a controller to manage services according to acquired service related information, thereby improving scheduling of network resources.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne un procédé, un appareil et un système de traitement d'informations de service. Le procédé comprend les étapes suivantes : un dispositif de commande reçoit des informations de service envoyées sous la forme d'une extension de protocole de passerelle frontière (BGP), les informations de service étant des informations requises pour indiquer l'exécution d'une fonction de service ; et le dispositif de commande traite un paquet de données de service correspondant aux informations de service selon les informations de service.
PCT/CN2017/108682 2016-10-31 2017-10-31 Procédé, appareil et système de traitement d'informations de service WO2018077304A1 (fr)

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