CN114828140A - Service flow message forwarding method and device, storage medium and electronic equipment - Google Patents
Service flow message forwarding method and device, storage medium and electronic equipment Download PDFInfo
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Abstract
The disclosure provides a service flow message forwarding method and device, a storage medium and electronic equipment, and relates to the technical field of mobile communication. The method is applied to a UPF network element and comprises the following steps: receiving a service flow message from a target application; detecting whether an application identifier in a service flow message is a preset application identifier or not; when the application identifier carried in the service flow message is a preset application identifier, determining the computational power path information corresponding to the preset application identifier as target path information; and forwarding the service flow message to a corresponding computational power node in the data network according to the target path information. In this disclosure, when the application identifier carried in the service traffic message is the preset application identifier, the UPF network element may forward the service traffic message according to the target path information through the correspondence between the preset application identifier and the computational power path information. Therefore, the UPF network element in the disclosure can forward the service flow message based on the granularity of the application, and the practicability of forwarding the service flow message is improved.
Description
Technical Field
The present disclosure relates to the field of mobile communications technologies, and in particular, to a method and an apparatus for forwarding a service traffic packet, a storage medium, and an electronic device.
Background
With the rapid development of wireless communication technology, computing power has become the core productivity of the information society. The data network can connect the computation nodes, and the core network can forward the service flow packet to different computation nodes in the data network for processing according to different requirements.
In the related art, the core Network may classify the received service traffic packets by using packets or flows as granularity based on IP addresses, port numbers, and the like, and forward the classified service traffic packets to corresponding computation nodes in DN (Data Network) based on SRv6(Segment Routing Over Internet Protocol Version 6, Segment Routing based on a forwarding plane of the sixth Version of the Internet Protocol) technology.
However, the granularity at which traffic packets are processed may be application, not packet or flow. The method provided by the related art cannot control the forwarding of the service flow message with application as granularity through the core network, so the method has poor practicability.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The present disclosure provides a method and an apparatus for forwarding a service traffic packet, a storage medium, and an electronic device, which at least to some extent overcome the problem that the related art cannot control forwarding of a service traffic packet with application granularity through a core network.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows, or in part will be obvious from the description, or may be learned by practice of the disclosure.
According to an aspect of the embodiments of the present disclosure, a method for forwarding a service traffic packet is provided, which is applied to a User Plane Function (UPF) network element, and includes: receiving a service flow message from a target application, wherein the service flow message carries an application identifier of the target application; detecting whether an application identifier carried in the service flow message is a preset application identifier, wherein the preset application identifier corresponds to computing power path information, and the computing power path information consists of computing power nodes in a data network; when the application identifier carried in the service flow message is a preset application identifier, determining the computational power path information corresponding to the preset application identifier as target path information for forwarding the service flow message; and forwarding the service flow message to a corresponding computational power node in a data network according to the target path information.
In some embodiments of the present disclosure, the method for forwarding a service traffic packet further includes: receiving a PFCP (Packet Forwarding Control Protocol) message issued by an SMF (Session Management Function) network element, where the PFCP message includes a plurality of PDRs (Packet Detection Rule) and farrs (Forwarding Action Rule) corresponding to one another, each PDR carries an application identifier, and each FAR carries a computation path information;
the detecting whether the application identifier carried in the service traffic message is a preset application identifier includes: matching the application identifier carried in the service flow message with the application identifier carried in each PDR, and determining whether the application identifier carried in the service flow message is a preset application identifier or not according to a matching result;
the determining, as target path information for forwarding the service traffic packet, the computation path information corresponding to the preset application identifier includes: and determining the calculation path information carried in the FAR corresponding to the PDR which is successfully matched as the target path information for forwarding the service flow message.
In some embodiments of the present disclosure, before forwarding the service traffic packet to a corresponding computational power node in a data network according to the target path information, the method for forwarding the service traffic packet further includes: encapsulating header information for the service flow message, wherein the header information carries target path information for forwarding the service flow message;
the forwarding the service traffic packet to a corresponding computational power node in a data network according to the target path information includes: and forwarding the service flow message carrying the header information to a corresponding computational power node in the data network.
In some embodiments of the present disclosure, the forwarding the service traffic packet carrying the header information to a corresponding computational power node in the data network includes: and forwarding the service flow message carrying the header information to the data network, wherein the service flow message in the data network reaches each computation power node contained in the target path information hop by hop according to the target path information carried by the header information until the computation power node reaches the target computation power node.
In some embodiments of the present disclosure, an application detection filter is included in any PDR, an application identifier carried by any PDR is included in the application detection filter, and the matching of the application identifier carried in the service traffic packet and the application identifier carried in each PDR includes: and matching the application identifier carried in the service flow message with the application identifier contained in the application detection filter through each application detection filter.
In some embodiments of the present disclosure, the receiving a service traffic packet from a target application includes: and receiving a service flow message through an interface between the UPF network element and the wireless access network.
In some embodiments of the present disclosure, the corresponding computation nodes in the data network are configured to perform corresponding computation on the service traffic packet to obtain a computation result, and the service traffic packet forwarding method further includes: receiving a calculation result returned by a corresponding calculation force node in the data network; and sending the calculation result to the target application.
According to another aspect of the present disclosure, there is provided a service traffic packet forwarding apparatus, including:
a service flow message receiving module, configured to receive a service flow message from a target application, where the service flow message carries an application identifier of the target application;
an application identifier detection module, configured to detect whether an application identifier carried in the service traffic packet is a preset application identifier, where the preset application identifier corresponds to computational power path information, and the computational power path information is composed of computational power nodes in a data network;
a target path information determining module, configured to determine, when an application identifier carried in the service traffic packet is a preset application identifier, computational power path information corresponding to the preset application identifier as target path information for forwarding the service traffic packet;
and the service flow message forwarding module is used for forwarding the service flow message to a corresponding computational power node in a data network according to the target path information.
In some embodiments of the present disclosure, the device for forwarding a service traffic packet further includes:
the system comprises a message receiving module, a message sending module and a message sending module, wherein the message receiving module is used for a PFCP message sent by an SMF network element, the PFCP message comprises a plurality of PDRs and FARs which correspond one to one, each PDR carries an application identifier, and each FAR carries calculation path information;
the application identifier detection module is used for matching the application identifier carried in the service flow message with the application identifier carried in each PDR, and determining whether the application identifier carried in the service flow message is a preset application identifier or not according to a matching result;
and the target path information determining module is used for determining the calculation force path information carried in the FAR corresponding to the PDR which is successfully matched as the target path information for forwarding the service flow message.
In some embodiments of the present disclosure, the device for forwarding a service traffic packet further includes:
a header information encapsulation module, configured to encapsulate header information for the service traffic packet, where the header information carries target path information for forwarding the service traffic packet;
and the service flow message forwarding module is used for forwarding the service flow message carrying the header information to a corresponding computational power node in the data network through SRv6 technology.
In some embodiments of the present disclosure, the service traffic packet forwarding module is configured to forward, according to SRv6 technology, a service traffic packet carrying the header information to the data network, where the service traffic packet, in the data network, reaches, hop by hop, each computation power node included in the target path information according to the target path information carried by the header information until reaching a destination computation power node.
In some embodiments of the present disclosure, any PDR includes an application detection filter, an application identifier carried by any PDR is included in the application detection filter, and the application identifier detection module is configured to match, through each application detection filter, the application identifier carried in the service traffic packet with the application identifier included in the application detection filter.
In some embodiments of the present disclosure, the service traffic message receiving module is configured to receive a service traffic message through an interface between the UPF network element and a radio access network.
In some embodiments of the present disclosure, the corresponding computation node in the data network is configured to perform corresponding computation on the service traffic packet to obtain a computation result, and the service traffic packet forwarding apparatus further includes:
the calculation result receiving module is used for receiving the calculation result returned by the corresponding calculation force node in the data network;
and the calculation result sending module is used for sending the calculation result to the target application.
According to another aspect of the present disclosure, a system for forwarding a service traffic packet is provided, where the system includes a terminal device, a UPF network element, and a data network, where the data network includes at least one computational power node:
the terminal equipment is used for sending a service flow message of a target application to the UPF network element;
the UPF network element is configured to receive a service traffic packet from a target application, detect whether an application identifier carried in the service traffic packet is a preset application identifier, determine, when the application identifier carried in the service traffic packet is the preset application identifier, computation power path information corresponding to the preset application identifier as target path information for forwarding the service traffic packet, and forward the service traffic packet to a corresponding computation power node in a data network according to the target path information, where the service traffic packet carries the application identifier of the target application, the preset application identifier corresponds to computation power path information, and the computation power path information is composed of computation power nodes in the data network;
and the data network is used for receiving the service flow message sent by the UPF network element.
In some embodiments of the present disclosure, the service traffic packet forwarding system further includes an SMF network element:
the SMF network element is used for sending a PFCP message, wherein the PFCP message comprises a plurality of PDRs and FARs which correspond one to one, each PDR carries an application identifier, and each FAR carries calculation force path information;
the UPF network element is also used for receiving the PFCP message issued by the SMF network element;
the UPF network element is used for matching the application identifier carried in the service flow message with the application identifier carried in each PDR, and determining whether the application identifier carried in the service flow message is a preset application identifier or not according to a matching result; and determining the calculation path information carried in the FAR corresponding to the PDR which is successfully matched as the target path information for forwarding the service flow message.
According to still another aspect of the present disclosure, there is provided an electronic device including: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to execute the above-mentioned service traffic message forwarding method via executing the executable instructions.
According to yet another aspect of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program, which when executed by a processor, implements the above-mentioned traffic flow packet forwarding method.
According to the technical scheme provided by the embodiment of the disclosure, when the application identifier carried in the service flow message is the preset application identifier, the UPF network element in the core network can determine the target path information for forwarding the service flow message according to the corresponding relationship between the preset application identifier and the computational power path information. Therefore, the core network in the embodiment of the present disclosure can forward the service traffic packet based on the application granularity, thereby improving the practicability of forwarding the service traffic packet.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
FIG. 1 shows a schematic diagram of a system architecture in an embodiment of the present disclosure;
FIG. 2 shows a schematic diagram of another system architecture in an embodiment of the disclosure;
fig. 3 shows a flowchart of a service traffic packet forwarding method in the embodiment of the present disclosure;
fig. 4 is a schematic diagram illustrating an encoding format of an application identity IE in a PDR in an embodiment of the present disclosure;
fig. 5 is a schematic diagram illustrating an encoding format of the computation power path information IE in the FAR in the embodiment of the present disclosure;
fig. 6 is a schematic diagram illustrating a process of forwarding a service traffic packet in an embodiment of the present disclosure;
fig. 7 is a schematic diagram illustrating a service traffic packet forwarding apparatus in an embodiment of the present disclosure; and
fig. 8 shows a block diagram of an electronic device in an embodiment of the present disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.
Fig. 1 is a schematic diagram illustrating an exemplary system architecture of a service traffic packet forwarding method or a service traffic packet forwarding apparatus that can be applied to the embodiment of the present disclosure.
As shown in fig. 1, the system architecture may include a terminal device 101, a UPF network element 102, and a data network 103.
Illustratively, the terminal device 101 may be configured to send a service traffic packet of the target application to the UPF network element 102. The UPF network element 102 may be configured to receive a service traffic packet from a target application, determine target path information for forwarding the service traffic packet by using the method provided in the embodiment of the present disclosure, and forward the service traffic packet to a corresponding computational node in the data network 103. The data network 103 may be configured to receive the service traffic packet sent by the UPF network element 102.
In some embodiments, as shown in fig. 2, the system architecture may further include an SMF network element 104: and the SMF network element 104 is configured to send the PFCP message to the UPF network element 102. The PFCP message is used to instruct the UPF network element 102 to determine target path information for forwarding the service traffic message.
The UPF network element 102, the terminal device 101, the data network 103, and the SMF network element 104 may be connected through a network, which may be a wired network or a wireless network.
Optionally, the wireless or wired networks described above use standard communication techniques and/or protocols. The Network is typically the Internet, but may be any Network including, but not limited to, a Local Area Network (LAN), a Metropolitan Area Network (MAN), a Wide Area Network (WAN), a mobile, wireline or wireless Network, a private Network, or any combination of virtual private networks. In some embodiments, data exchanged over a network is represented using techniques and/or formats including Hypertext Mark-up Language (HTML), Extensible markup Language (XML), and the like. All or some of the links may also be encrypted using conventional encryption techniques such as Secure Socket Layer (SSL), Transport Layer Security (TLS), Virtual Private Network (VPN), Internet protocol Security (IPsec). In other embodiments, custom and/or dedicated data communication techniques may also be used in place of, or in addition to, the data communication techniques described above.
The terminal device 101 may be a variety of electronic devices including, but not limited to, a smartphone, a tablet, a laptop portable computer, a desktop computer, a wearable device, an augmented reality device, a virtual reality device, and the like.
Both the UPF network element 102 and the SMF network element 104 belong to a 3GPP (3rd Generation Partnership Project) based core network.
The data network 103 may include a plurality of computing nodes, and any computing node may be a server that provides various services, such as a background management server that supports devices operated by the user using the terminal apparatus 101. The background management server may analyze and perform other processing on the received data such as the request, and feed back the processing result to the terminal device 101.
Optionally, the server may be an independent physical server, a server cluster or a distributed system formed by a plurality of physical servers, or a cloud server providing basic cloud computing services such as a cloud service, a cloud database, cloud computing, a cloud function, cloud storage, a Network service, cloud communication, a middleware service, a domain name service, a security service, a CDN (Content Delivery Network), a big data and artificial intelligence platform, and the like. The terminal may be, but is not limited to, a smart phone, a tablet computer, a laptop computer, a desktop computer, a smart speaker, a smart watch, and the like. The terminal and the server may be directly or indirectly connected through wired or wireless communication, and the application is not limited herein.
Those skilled in the art will appreciate that the numbers of the terminal devices 101, the UPF network elements 102, the data networks 103, and the SMF network elements 104 in fig. 1 and fig. 2 are merely illustrative, and any number of the terminal devices 101, the UPF network elements 102, the data networks 103, and the SMF network elements 104 may be provided according to actual needs. The embodiments of the present disclosure are not limited thereto.
The present exemplary embodiment will be described in detail below with reference to the drawings and examples.
First, the embodiment of the present disclosure provides a method for forwarding a service traffic packet, where the method may be executed by any electronic device with computing processing capability.
Fig. 3 shows a flowchart of a method for forwarding a service traffic packet in the embodiment of the present disclosure, and as shown in fig. 3, the method for forwarding a service traffic packet provided in the embodiment of the present disclosure includes the following steps.
S302, receiving a service flow message from a target application, wherein the service flow message carries an application identifier of the target application.
The target application and the service flow packet of the target application are not limited in the embodiments of the present disclosure, and the target application may be any type of application, for example, the target application may be a music playing application or an instant messaging application. When the target application is a music playing application, the service traffic message may be a service traffic message for obtaining music recommendation and the like. When the target application is an instant messaging application, the service traffic message may be a service traffic message for obtaining a friend message and the like.
The format of the application identifier is not limited in the embodiment of the present disclosure, and the format of the application identifier may be set through an application scenario or experience. In one possible implementation, any target application may have a unique application identification.
Illustratively, receiving a traffic flow packet from a target application includes: and receiving the service flow message through an interface between the UPF network element and the wireless access network. The target application may be located in a terminal device, the terminal device may be accessed into a radio access network, and the radio access network may be connected to a UPF network element. Therefore, the terminal equipment can send the service flow message to the UPF network element through the wireless access network. The UPF network element can receive the service flow message through the interface between the UPF network element and the wireless access network.
S304, detecting whether the application identifier carried in the service flow message is a preset application identifier, wherein the preset application identifier corresponds to computing power path information, and the computing power path information is composed of computing power nodes in a data network.
In an exemplary embodiment, the UPF network element may include one or more application identifiers configured in advance, and each application identifier configured in advance may correspond to one computation power path information. After the UPF network element receives the service traffic packet, the UPF network element may match the application identifier carried in the service traffic packet with an application identifier configured in advance in the UPF network element. And if the application identifier carried in the service flow message is matched with the application identifier configured in advance in any UPF network element, the application identifier carried in the service flow message is a preset application identifier.
In some embodiments, the computation power path information is used to indicate a forwarding path of a service traffic packet in a data network, where the service traffic packet needs to carry an application identifier corresponding to the computation power path message. One or more computational power nodes included in the computational power path information may be arranged according to a connection order of each computational power node in the data network, wherein a last computational power node arranged in the computational power path information is a destination computational power node corresponding to the service traffic packet.
In some embodiments, the method for forwarding a service traffic packet provided by the embodiment of the present disclosure further includes: receiving a PFCP message sent by an SMF network element, wherein the PFCP message comprises a plurality of PDRs and FARs which correspond one to one, each PDR carries an application identifier, and each FAR carries calculation force path information. Under the condition, detecting whether the application identifier carried in the service flow message is a preset application identifier includes: and matching the application identifier carried in the service flow message with the application identifier carried in each PDR, and determining whether the application identifier carried in the service flow message is a preset application identifier or not according to a matching result.
For example, before the UPF network element receives the service traffic message, a PFCP session may be established with the SMF network element, where the PFCP message is a message used for establishing the PFCP session. The PFCP session is used to instruct the UPF network element how to forward the received service traffic packet. It should be noted that the embodiments of the present disclosure do not limit the number of PDRs and FAR, for example, one PFCP message may include 5 pairs of PDRs and FAR, or one PFCP message may also include 20 pairs of PDRs and FAR. In addition, the number of PFCP packets is not limited in the embodiment of the present disclosure, for example, the SMF network element may send 3 PFCP packets or 5 PFCP packets to the UPF network element in advance, where each PFCP packet may include any number of PDR and FAR pairs.
In a possible implementation manner, the PFCP message may include, in addition to the PDR and the FAR, a BAR (Buffering Action Rule), a QER (QOS Enforcement Rule), and the like, which are not limited in the embodiment of the present disclosure. The BAR may be used to indicate the cache class operation of the UPF network element on the service traffic message, and the QER may be used to indicate the flow control class operation of the UPF network element on the service traffic message.
In some embodiments, the PDR may include multiple IEs (Information Elements), and the application identifier carried in the PDR may be correspondingly included in the application identifier IE in the PDR. Illustratively, the multiple IEs that may be included in the PDR may include, in addition to the application identity IE, an IE corresponding to the FAR, an IE corresponding to the QER, and the like. The IE corresponding to the FAR may be used to identify the FAR corresponding to the PDR, and the IE corresponding to the QER may be used to identify the QER corresponding to the PDR.
In an exemplary embodiment, any PDR includes an application detection filter, an application identifier carried by any PDR is included in the application detection filter, and the matching of the application identifier carried in the service traffic packet and the application identifier carried in each PDR includes: and matching the application identifier carried in the service flow message with the application identifier contained in the application detection filter through each application detection filter.
In one possible implementation, the SMF network element includes 5 pairs of PDRs and FARs. The SMF network element may send the PFCP packet including the 5 pairs of PDRs and FAR to the UPF network element. Wherein each of the 5 PDRs comprises an application detection filter. After the UPF network element receives the service traffic message, the application detection filters in the 5 PDRs match the application identifier in the service traffic message with the application identifier in the application detection filters, respectively. Then, the UPF network element may obtain the PDR matched with the application identifier in the service traffic packet.
The encoding format of the application identity IE in one possible PDR may be as shown in fig. 4. In fig. 4, Type information, Length information, and an application detection filter may be included in the encoding of the application identification IE. Illustratively, the Type information is used to indicate the Type of the application identity IE. Illustratively, the Type information may occupy 2 bytes, each byte being 8 bits. Type in fig. 4 is 24 (decimal). The Length information may be used to indicate the Length of the variable bytes. Illustratively, the Length information may occupy 2 bytes. Illustratively, in the encoding of the application identity IE, the Length information indicates the Length of the variable byte, that is, the Length of the byte corresponding to the application detection filter. In fig. 4, the Length information is n.
The encoding format of the computation force path information IE in one possible FAR may be as shown in fig. 5. In fig. 5, Type information, Length information, and Segment List information may be included. Illustratively, Type information is used to indicate the Type of the computation power path information IE. Illustratively, the Type information may occupy 2 bytes, each byte being 8 bits. Type 32769 (decimal) in fig. 5. The Length information may be used to indicate the Length of the variable bytes. Illustratively, in the encoding of the computation force path information IE, the Length information indicates the Length of the variable byte, i.e., the Length of the byte corresponding to the Segment List information. In fig. 5, the Length information is n. The Segment List information includes the above-mentioned computation power path information, as shown in FIG. 5, from Segment List [0] to Segment List [ q ], each Segment List corresponds to a computation power node in the computation power path, for example, Segment List [0] may correspond to computation power node 0, and Segment List [ q ] may correspond to computation power node q. And sequencing the calculation nodes on the calculation path according to the arrival sequence of the service flow messages to obtain the Segment List. In an exemplary embodiment, each Segment List may be described by a 128-bit Ipv6(Internet Protocol Version 6, sixth edition) address, so that each Segment List occupies 16 bytes.
In the embodiment of the present disclosure, through the one-to-one correspondence relationship between the PDR and the FAR, the application identifier is set in the PDR, and the corresponding computation power path information is set in the FAR, so that each application identifier can be made to correspond to the computation power path information, thereby obtaining a better algorithm for obtaining the computation power path information of the service traffic packet.
And S306, when the application identifier carried in the service flow message is a preset application identifier, determining the computational power path information corresponding to the preset application identifier as the target path information for forwarding the service flow message.
Exemplarily, determining the computation path information corresponding to the preset application identifier as the target path information for forwarding the service traffic packet includes: and determining the calculation path information carried in the FAR corresponding to the PDR which is successfully matched as the target path information of the forwarding service flow message.
In some embodiments, when the application identifier carried in the service traffic packet is a preset application identifier, a corresponding FAR may be determined based on the PDR matched with the application identifier carried in the service traffic packet, and then the calculation power path information in the FAR may be read. The calculated force path information in the FAR is the target path information.
And S308, forwarding the service flow message to a corresponding computational power node in the data network according to the target path information.
For example, the target path information may include a plurality of power nodes arranged in sequence, and the service traffic packet may be forwarded to the first power node according to the arrangement sequence of the plurality of power nodes, where the service traffic packet may be transmitted from the first power node along the arrangement sequence of the plurality of power nodes until the service traffic packet reaches the corresponding power node.
In some embodiments, before forwarding the service traffic packet to a corresponding computational power node in the data network according to the target path information, the method further includes: and encapsulating the head information of the service flow message, wherein the head information carries the target path information for forwarding the service flow message. In this case, forwarding the service traffic packet to a corresponding computational power node in the data network according to the target path information includes: and forwarding the service flow message carrying the header information to a corresponding computational power node in the data network.
The content of the header information is not limited in the embodiments of the present disclosure, and the header information may include corresponding content of the computation power path information. Illustratively, the header information may be header information in IPv6 format, and the header information includes one to more algorithm node address encodings in IPv6 format.
In some embodiments, forwarding a service traffic packet carrying header information to a corresponding computational power node in a data network includes: and forwarding the service flow message carrying the header information to a data network, wherein the service flow message in the data network reaches each computation power node contained in the target path information hop by hop according to the target path information carried by the header information until the computation power node reaches a target computation power node.
In some embodiments, when the service traffic packet carrying the header information is forwarded to the data network, each computational node in the data network may analyze the header information to determine whether the service traffic packet needs to be forwarded to the next computational node. If the computational power node for analyzing the header information is the last computational power node contained in the header information, the computational power node does not need to forward the service traffic message any more, and can perform corresponding computation on the service traffic message.
In an exemplary embodiment, the corresponding computation force node in the data network is configured to perform corresponding computation on the service traffic packet to obtain a computation result, and the method further includes: receiving a calculation result returned by a corresponding calculation force node in the data network; and sending the calculation result to the target application.
In some embodiments, after the corresponding computation nodes in the data network obtain the computation results, the computation results may be encapsulated to obtain the data packet. And may return the data packet to the UPF network element. Illustratively, a corresponding computational node in the data network may return the data packet to the UPF network element through a path to which the traffic packet is forwarded. Then, the UPF network element may receive the data packet corresponding to the calculation result, and return the data packet to the target application.
Fig. 6 shows a process of forwarding a traffic packet, which is exemplarily required to be forwarded to the computation node 3 in the data network of fig. 6. First, the terminal device may send a traffic flow packet to the radio access network. The wireless access network receives the service flow message and can send the service flow message to the UPF network element through the N3 interface. The SMF network element may issue a PFCP message to the UPF network element through an N4 interface to instruct the UPF network element to forward the service traffic message. The UPF network element may determine the target path information of the service traffic packet according to the PFCP packet. In this embodiment, the target path information may be composed of an address of the force calculation node 0, an address of the force calculation node 1, an address of the force calculation node 2, and an address of the force calculation node 3, which are arranged in order. Then, the UPF network element encapsulates the header information with the target path information to the service traffic packet, and forwards the service traffic packet to the first computational node (computational node 0) in the network data through the N6 interface. The computation node 0 may determine that the service traffic packet needs to be transmitted back to the computation node 1 by analyzing the header information, and forward the service traffic packet. Similarly, the force calculation node 1 and the force calculation node 2 may both analyze the header information and forward the service traffic packet backwards until the force calculation node 3 receives the service traffic packet.
In the method provided by the embodiment of the present disclosure, when the application identifier carried in the service traffic packet is the preset application identifier, the UPF network element in the core network may determine the target path information for forwarding the service traffic packet according to the corresponding relationship between the preset application identifier and the computational power path information. Therefore, in the embodiment of the present disclosure, the core network may forward the service traffic packet based on the application granularity, so that the practicability of forwarding the service traffic packet is improved.
Based on the same inventive concept, the embodiment of the present disclosure further provides a service flow packet forwarding apparatus, as described in the following embodiments. Because the principle of the embodiment of the apparatus for solving the problem is similar to that of the embodiment of the method, the embodiment of the apparatus can be implemented by referring to the implementation of the embodiment of the method, and repeated details are not described again.
Fig. 7 is a schematic diagram illustrating a service traffic packet forwarding apparatus in an embodiment of the present disclosure, and as shown in fig. 7, the apparatus includes:
a service traffic message receiving module 701, configured to receive a service traffic message from a target application, where the service traffic message carries an application identifier of the target application;
an application identifier detecting module 702, configured to detect whether an application identifier carried in a service traffic packet is a preset application identifier, where the preset application identifier corresponds to computational power path information, and the computational power path information is composed of computational power nodes in a data network;
a target path information determining module 703, configured to determine, when an application identifier carried in the service traffic packet is a preset application identifier, computational power path information corresponding to the preset application identifier as target path information for forwarding the service traffic packet;
and a service traffic packet forwarding module 704, configured to forward the service traffic packet to a corresponding computational power node in the data network according to the target path information.
In some embodiments of the present disclosure, the device for forwarding a service traffic packet further includes:
the message receiving module is used for a PFCP message issued by the SMF network element, wherein the PFCP message comprises a plurality of PDRs and FARs which correspond one to one, each PDR carries an application identifier, and each FAR carries calculation power path information;
an application identifier detection module 702, configured to match an application identifier carried in a service traffic packet with an application identifier carried in each PDR, and determine whether the application identifier carried in the service traffic packet is a preset application identifier according to a matching result;
the target path information determining module 703 is configured to determine, as target path information for forwarding the service traffic packet, the computation path information carried in the FAR corresponding to the PDR that is successfully matched.
In some embodiments of the present disclosure, the device for forwarding a service traffic packet further includes:
the head information encapsulation module is used for encapsulating the head information of the service flow message, and the head information carries the target path information for forwarding the service flow message;
a service traffic packet forwarding module 704, configured to forward the service traffic packet carrying the header information to a corresponding computational power node in the data network.
In some embodiments of the present disclosure, the service traffic packet forwarding module 704 is configured to forward, according to the SRv6 technique, a service traffic packet carrying header information to a data network, where the service traffic packet in the data network reaches, hop by hop, each computation power node included in the target path information according to the target path information carried by the header information until reaching the destination computation power node.
In some embodiments of the present disclosure, any PDR includes an application detection filter, the application identifier carried by any PDR is included in the application detection filter, and the application identifier detection module 702 is configured to match, through each application detection filter, the application identifier carried in the service traffic packet with the application identifier included in the application detection filter.
In some embodiments of the present disclosure, the service traffic message receiving module 701 is configured to receive a service traffic message through an interface between a UPF network element and a radio access network.
In some embodiments of the present disclosure, a corresponding computation node in the data network is configured to perform corresponding computation on the service traffic packet to obtain a computation result, and the service traffic packet forwarding apparatus further includes:
the calculation result receiving module is used for receiving the calculation result returned by the corresponding calculation force node in the data network;
and the calculation result sending module is used for sending the calculation result to the target application.
In the technical apparatus provided in the embodiment of the present disclosure, when the application identifier carried in the service traffic packet is the preset application identifier, the UPF network element in the core network may determine the target path information for forwarding the service traffic packet according to the corresponding relationship between the preset application identifier and the computational power path information. Therefore, the core network in the embodiment of the present disclosure can forward the service traffic packet based on the application granularity, thereby improving the practicability of forwarding the service traffic packet.
As will be appreciated by one skilled in the art, aspects of the present disclosure may be embodied as a system, method or program product. Accordingly, various aspects of the present disclosure may be embodied in the form of: an entirely hardware embodiment, an entirely software embodiment (including firmware, microcode, etc.) or an embodiment combining hardware and software aspects that may all generally be referred to herein as a "circuit," module "or" system.
An electronic device 800 according to this embodiment of the disclosure is described below with reference to fig. 8. The electronic device 800 shown in fig. 8 is only an example and should not bring any limitations to the functionality and scope of use of the embodiments of the present disclosure.
As shown in fig. 8, electronic device 800 is in the form of a general purpose computing device. The components of the electronic device 800 may include, but are not limited to: the at least one processing unit 810, the at least one memory unit 820, and a bus 830 that couples various system components including the memory unit 820 and the processing unit 810.
Wherein the storage unit stores program code that can be executed by the processing unit 810 to cause the processing unit 810 to perform the steps according to various exemplary embodiments of the present disclosure described in the above section "detailed description" of the present specification.
The storage unit 820 may include readable media in the form of volatile memory units such as a random access memory unit (RAM)8201 and/or a cache memory unit 8202, and may further include a read only memory unit (ROM) 8203.
The storage unit 820 may also include a program/utility 8204 having a set (at least one) of program modules 8205, such program modules 8205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.
The electronic device 800 may also communicate with one or more external devices 840 (e.g., keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 800, and/or with any devices (e.g., router, modem, etc.) that enable the electronic device 800 to communicate with one or more other computing devices. Such communication may occur via input/output (I/O) interfaces 850. Also, the electronic device 800 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the internet) via the network adapter 860. As shown, the network adapter 860 communicates with the other modules of the electronic device 800 via the bus 830. It should be appreciated that although not shown, other hardware and/or software modules may be used in conjunction with the electronic device 800, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.
In an exemplary embodiment of the present disclosure, there is also provided a computer-readable storage medium, which may be a readable signal medium or a readable storage medium. On which a program product capable of implementing the above-described method of the present disclosure is stored. In some possible embodiments, various aspects of the disclosure may also be implemented in the form of a program product comprising program code for causing a terminal device to perform the steps according to various exemplary embodiments of the disclosure as described in the "detailed description" section above of this specification, when the program product is run on the terminal device.
More specific examples of the computer-readable storage medium in the present disclosure may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
In the present disclosure, a computer readable storage medium may include a propagated data signal with readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Alternatively, program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
In particular implementations, program code for carrying out operations of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + +, or the like, as well as conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., through the internet using an internet service provider).
It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.
Moreover, although the steps of the methods of the present disclosure are depicted in the drawings in a particular order, this does not require or imply that the steps must be performed in this particular order, or that all of the depicted steps must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions, etc.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.
Claims (12)
1. A method for forwarding service flow message is applied to a User Plane Function (UPF) network element, and comprises the following steps:
receiving a service flow message from a target application, wherein the service flow message carries an application identifier of the target application;
detecting whether an application identifier carried in the service flow message is a preset application identifier, wherein the preset application identifier corresponds to computing power path information, and the computing power path information consists of computing power nodes in a data network;
when the application identifier carried in the service flow message is a preset application identifier, determining the computational power path information corresponding to the preset application identifier as target path information for forwarding the service flow message;
and forwarding the service flow message to a corresponding computational power node in a data network according to the target path information.
2. The method according to claim 1, wherein the method further comprises:
receiving a message forwarding control protocol (PFCP) message issued by a Session Management Function (SMF) network element, wherein the PFCP message comprises a plurality of message detection rules (PDRs) and forwarding operation rules (FARs) which correspond one to one, each PDR carries an application identifier, and each FAR carries computational power path information;
the detecting whether the application identifier carried in the service traffic message is a preset application identifier includes:
matching the application identifier carried in the service flow message with the application identifier carried in each PDR, and determining whether the application identifier carried in the service flow message is a preset application identifier or not according to a matching result;
the determining, as target path information for forwarding the service traffic packet, the computation path information corresponding to the preset application identifier includes:
and determining the calculation path information carried in the FAR corresponding to the PDR which is successfully matched as the target path information for forwarding the service flow message.
3. The method according to any one of claims 1 or 2, wherein before forwarding the service traffic packet to a corresponding computational effort node in a data network according to the target path information, the method further comprises:
encapsulating header information for the service flow message, wherein the header information carries target path information for forwarding the service flow message;
the forwarding the service traffic packet to a corresponding computational power node in a data network according to the target path information includes:
and forwarding the service flow message carrying the header information to a corresponding computational power node in the data network.
4. The method according to claim 3, wherein the forwarding the service traffic packet carrying the header information to a corresponding computational power node in the data network comprises:
and forwarding the service flow message carrying the header information to the data network, wherein the service flow message in the data network reaches each computation power node contained in the target path information hop by hop according to the target path information carried by the header information until the computation power node reaches the target computation power node.
5. The method according to claim 2, wherein any PDR includes an application detection filter, an application identifier carried by any PDR is included in the application detection filter, and the matching of the application identifier carried in the service traffic packet and the application identifier carried in each PDR includes:
and matching the application identifier carried in the service flow message with the application identifier contained in the application detection filter through each application detection filter.
6. The method according to any one of claims 1 or 2, wherein the receiving the service traffic packet from the target application includes:
and receiving a service flow message through an interface between the UPF network element and the wireless access network.
7. The method according to any one of claims 1 or 2, wherein a corresponding computation node in the data network is configured to perform corresponding computation on the service traffic packet to obtain a computation result, and the method further includes:
receiving a calculation result returned by a corresponding calculation force node in the data network;
and sending the calculation result to the target application.
8. A service flow message forwarding system is characterized in that the system comprises a terminal device, a UPF network element and a data network, wherein the data network comprises at least one computational power node:
the terminal equipment is used for sending a service flow message of a target application to the UPF network element;
the UPF network element is configured to receive a service traffic packet from a target application, detect whether an application identifier carried in the service traffic packet is a preset application identifier, determine, when the application identifier carried in the service traffic packet is the preset application identifier, computational power path information corresponding to the preset application identifier as target path information for forwarding the service traffic packet, and forward the service traffic packet to a corresponding computational power node in a data network according to the target path information, where the service traffic packet carries the application identifier of the target application, the preset application identifier corresponds to computational power path information, and the computational power path information is composed of computational power nodes in the data network;
and the data network is used for receiving the service flow message sent by the UPF network element.
9. The system for forwarding service traffic packets according to claim 8, wherein the system further comprises an SMF network element:
the SMF network element is used for sending a PFCP message, wherein the PFCP message comprises a plurality of PDRs and FARs which correspond one to one, each PDR carries an application identifier, and each FAR carries calculation force path information;
the UPF network element is also used for receiving the PFCP message sent by the SMF network element;
the UPF network element is used for matching the application identifier carried in the service flow message with the application identifier carried in each PDR, and determining whether the application identifier carried in the service flow message is a preset application identifier or not according to a matching result; and determining the calculation path information carried in the FAR corresponding to the PDR which is successfully matched as the target path information for forwarding the service flow message.
10. A device for forwarding a service traffic packet, comprising:
a service flow message receiving module, configured to receive a service flow message from a target application, where the service flow message carries an application identifier of the target application;
an application identifier detection module, configured to detect whether an application identifier carried in the service traffic packet is a preset application identifier, where the preset application identifier corresponds to computational power path information of a computational power node;
a target path information determining module, configured to determine, when an application identifier carried in the service traffic packet is a preset application identifier, computational power path information corresponding to the preset application identifier as target path information for forwarding the service traffic packet;
and the service flow message forwarding module is used for forwarding the service flow message to a corresponding computational power node in a data network.
11. An electronic device, comprising:
a processor; and
a memory for storing executable instructions of the processor;
wherein the processor is configured to execute the service traffic message forwarding method according to any one of claims 1 to 7 via executing the executable instructions.
12. A computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the method for forwarding service traffic packets according to any one of claims 1 to 7.
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