WO2018036514A1

WO2018036514A1 - Method and device for sending message

Info

Publication number: WO2018036514A1
Application number: PCT/CN2017/098628
Authority: WO
Inventors: 范军
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-08-23
Filing date: 2017-08-23
Publication date: 2018-03-01
Also published as: CN107770067A; CN107770067B

Abstract

Provided are a method and device for sending a message. The method comprises: when a VNF is in an elastic shrinkage capacity, if a communication message of a network element is received, acquiring a message type of the communication message; determining, based on the message type of the communication message, a target DEP module for processing the communication message; and sending the communication message to the target DEP module. The present invention solves the technical problem in the related art that message forwarding cannot be performed due to the characteristic of the elastic shrinkage capacity of a VNF.

Description

Message sending method and device

Technical field

The present invention relates to the field of communications, and in particular to a message sending method and apparatus.

Background technique

According to RFC 3588 (Request For Comments, referred to as RFC, is a series of numbered files that collect information about Internet-related information, as well as software files for UNIX and Internet communities) and related application protocols. Expanded, Diameter system is 3GPP (3rd Generation Partnership Project, 3GPP's goal is to achieve a smooth transition from 2G network to 3G network, to ensure backward compatibility of future technologies, support easy network construction and inter-system roaming and compatibility , including R5, R6, R7, R8, R9, etc.) HSS (Home Subscriber Server), SLF (Super Low Frequency), SPR in the IMS (IP Multimedia Subsystem) system (Subscription Profile Repository), EPC (Evolved Packet Core, 4G core network) and other related network elements provide Diameter messaging, relay and other functional services.

The system uses the data transmission service provided by the transport layer (that is, the TCP/SCTP layer, the Transmission Control Protocol, the Stream Control Transmission Protocol, the Stream Control Transmission Protocol) to send a Diameter message to the peer Diameter entity, and the received Diameter message. It is sent to the service layer to provide link management and transaction layer retransmission mechanisms to ensure the reliability of the signaling layer.

According to the Diameter protocol, the main functions of the system include connection management function, transaction management function, and session management function. According to the functional requirements of the system, the system can be divided into the following functional levels:

(1) DAP module (Diameter Access Point), completes the access control of the neighboring points in the Diameter network, and carries the management function;

(2) The DEP module (Diameter Executive Point) completes the business-related logic execution functions defined in the Diameter protocol, including transaction management, session management, Relay/Redirect, etc.

As the connection management module of the Diameter protocol stack, the DAP module is mainly responsible for completing the access control and bearer management functions of the Diameter neighbor. The DAP module receives the message from the SCTP/TCP layer. If it is a request message, it sends it to the corresponding DEP module according to a certain distribution policy. If it is a response message, it sends it directly to the DEP module where the request message is located.

After the Virtualization of the VNF (Virtual Network Feature) is introduced, the DAP module cannot be correctly distributed due to the change of the status of the DEP module.

In view of the technical problem that the message forwarding cannot be correctly performed due to the elastic contraction characteristic of the VNF in the related art, an effective solution has not been proposed yet.

Summary of the invention

The embodiment of the invention provides a message sending method and device, so as to at least solve the technical problem that the message forwarding cannot be correctly performed due to the elastic contraction characteristic of the VNF in the related art.

According to an aspect of the embodiments of the present invention, a message sending method is provided. The method includes: when a VNF is in an elastic contraction, if a communication message of a network element is received, acquiring a message type of the communication message; The message type determines the target DEP module for processing the communication message; sends the communication message to the target DEP module.

Optionally, the message type of the communication message is: obtaining the identification information carried in the communication message; determining the message type of the communication message by using the identification information.

Optionally, the obtaining the identifier information carried in the communication message includes: obtaining the identifier information carried in the Payload field in the communication message.

Optionally, determining, by the identifier information, the message type of the communication message includes: determining whether there is a session connection corresponding to the identifier information, where the session connection corresponding to the identifier information is a session connection to which the communication message belongs; if there is a correspondence corresponding to the identifier information The session connection determines that the message type of the communication message is a non-originating message; if there is no session connection corresponding to the identification information, it determines that the message type of the communication message is an originating message.

Optionally, determining, according to the message type of the communication message, the target DEP module for processing the communication message comprises: determining that the DEP module associated with the session connection is the target DEP module if the message type of the communication message is a non-originating message; In the case that the message type of the communication message is an originating message, one of the plurality of DEP modules is selected as the target DEP module, wherein the plurality of DEP modules are DEP modules that are not allowed to be reduced in the preset time period.

Optionally, the identifier information is data information, and selecting one of the plurality of DEP modules as the target DEP module includes: determining a number of modules of the plurality of DEP modules; performing a remainder operation on the identifier information by using the number of modules to obtain identification data; The target DEP module in the DEP module that matches the identification data in sequence, and associates the target DEP module with the session connection.

Optionally, the network element includes a 3GPP AAA SERVER network element.

According to another aspect of the present invention, a message sending apparatus is provided, the apparatus comprising: an acquiring unit, configured to acquire a message of a communication message if a communication message of a network element is received when the VNF is in elastic contraction a determining unit configured to determine a target DEP module for processing a communication message based on a message type of the communication message; and a sending unit configured to send the communication message to the target DEP module.

Optionally, the obtaining unit includes: an obtaining module, configured to obtain the identifier information carried in the communication message; and the first determining module is configured to determine, by using the identifier information, a message type of the communication message.

Optionally, the obtaining module is further configured to obtain the identifier information carried in the Payload field in the communication message.

Optionally, the first determining module includes: a determining submodule, configured to determine whether there is a session connection corresponding to the identifier information, where the session connection corresponding to the identifier information is a session connection to which the communication message belongs; the first determining submodule, The message type of the communication message is determined to be a non-originating message if there is a session connection corresponding to the identification information; and the second determining sub-module is configured to determine a message of the communication message if there is no session connection corresponding to the identification information Type is the originating message.

Optionally, the determining unit includes: a second determining module, configured to determine that the DEP module associated with the session connection is the target DEP mode if the message type of the communication message is a non-originating message The module is configured to select one of the plurality of DEP modules as the target DEP module when the message type of the communication message is an initial message, wherein the plurality of DEP modules are not allowed within the preset time period. Shrinking DEP module.

Optionally, the identifier information is data information, and the selecting module includes: a third determining submodule configured to determine a number of modules of the plurality of DEP modules; and an operation submodule configured to perform a remainder operation on the identifier information by using the number of modules to obtain the identifier The data acquisition module is configured to acquire a target DEP module that matches the identification data in the plurality of DEP modules, and associates the target DEP module with the session connection.

Optionally, the network element includes a 3GPP AAA SERVER network element.

According to another embodiment of the present invention, there is provided a storage medium, which may be configured to store program code for performing the following steps: when the VNF is in elastic contraction, if a communication message of the network element is received, Obtaining a message type of the communication message; determining a target DEP module for processing the communication message based on the message type of the communication message; and transmitting the communication message to the target DEP module.

In the embodiment of the present invention, when the VNF is in elastic contraction, if the communication message of the network element is received, the message type of the communication message is acquired; and the target DEP module for processing the communication message is determined based on the message type of the communication message; The communication message is sent to the target DEP module, thereby solving the technical problem that the message forwarding cannot be correctly performed due to the elastic contraction characteristic of the VNF in the related art, and the technical effect of correctly performing message forwarding during the elastic contraction is realized.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic diagram of a computer terminal in accordance with an embodiment of the present invention;

2 is a flow chart of message forwarding in accordance with an embodiment of the present invention;

FIG. 3 is a flowchart of a message sending method according to an embodiment of the present invention; FIG.

4 is a schematic diagram of a Diameter logic architecture in accordance with an embodiment of the present invention;

FIG. 5 is a schematic diagram of a message transmitting apparatus according to an embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

Example 1

The method embodiment provided in Embodiment 1 of the present application can be executed in a mobile terminal, a computer terminal or the like. For example, running on a computer terminal, as shown in FIG. 1, the computer terminal may include one or more (only one shown) processor 101 (the processor 101 may include, but is not limited to, a microprocessor MCU or programmable A processing device such as a logic device FPGA, a memory 103 provided to store data, and a transmission device 105 provided as a communication function. It will be understood by those skilled in the art that the structure shown in FIG. 1 is merely illustrative and does not limit the structure of the above electronic device.

The memory 103 can be configured as a software program and a module for storing application software, such as program instructions/modules corresponding to the control method of the device in the embodiment of the present invention, and the processor 101 executes by executing a software program and a module stored in the memory 103. Various functional applications and data processing, that is, the above methods are implemented. The memory can include high speed random access memory and can also include non-volatile memory such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory. In some examples, the memory can further include memory remotely located relative to the processor, which can be connected to the computer terminal over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

For example, the memory may store the program code of the following steps: when the VNF is in elastic contraction, if the communication message of the network element is received, the message type of the communication message is acquired; based on the communication message The message type determines the target DEP module for processing the communication message; sends the communication message to the target DEP module.

The transmission device is arranged to receive or transmit data via a network. The above-described network specific examples may include a wireless network provided by a communication provider of a computer terminal. In one example, the transmission device includes a Network Interface Controller (NIC) that can be connected to other network devices through the base station to communicate with the Internet. In one example, the transmission device can be a Radio Frequency (RF) module configured to communicate with the Internet wirelessly.

Whether the Non-3GPP access network is trusted or not is a network feature. If it is dynamically determined whether it is trusted or not, it is handled at the time of access authentication. The AAA Server sends the indication to the access network. The DER (Diameter-EAP-Request) flowchart is shown in Figure 2:

Step S201: After the UE establishes an association with the trusted Non-3GPP access gateway, the UE sends an EAPoL-Start to the Non-3GPP access gateway to initiate an authentication request.

Step S202: The Non-3GPP access gateway sends an EAP-Request/Identity message to the UE.

Step S203: The UE returns an EAP-Response/Identity message, and sends its user identity information to the network. The identity identifier may be a pseudo-random NAI or a permanent NAI (a pseudo-random NAI is not available locally).

Step S204: The Non-3GPP access gateway encapsulates the EAP message with the EAP-payload AVP of the DIAMETER DER message and places the Identity in the User-Name AVP of the DIAMETER DER message, and sends the identifier to the 3GPP AAA Server.

Step S205: After receiving the DEA message, the 3GPP AAA Server needs to perform the following processing:

(1) In the case of non-roaming, it is mandatory to check the validity of the ANID (neighbor network identifier) (within the scope defined by 3GPP) and whether to allow the ANID access according to the local configuration; whether to check the ANID according to the local configuration in the case of roaming, If the ANID needs to be checked, it is decided according to the local configuration whether to allow the ANID to access.

(2) Judging whether it is trusted or not.

(3) Selection of the authentication algorithm. The EAP-AKA' algorithm is used if the DIAMETER DER carries the ANID, otherwise the EAP-AKA algorithm is used.

Step S206, the 3GPP AAA Server sends a DIAMETER DER message requesting a permanent user ID to the access network.

Step S207, the access network forwards the DER message to the UE.

Step S208, the UE responds by using the EAP-Response/AKA-Identity message to carry a permanent NAI (Network Access Identifier).

Step S209, the trusted Non-3GPP access gateway forwards the EAP-Response/AKA-Identity message to carry the permanent NAI to the 3GPP AAA Server, and the EAP message is encapsulated in the EAP-payload AVP of the DER message.

In step S210, the 3GPP AAA Server checks whether the available authentication vector is cached according to the NAI, and if not, sends a MAR (Multimedia Auth Request) request to the HSS, requesting to obtain n sets of authentication vectors (n configurable, ranging from 1 to 5) ).

In step S211, the information processing process between the AAA and the HSS is described in the related technical description of the SWx interface. Here, only the functional description is performed. The HSS sends an n-group authentication quintuple in response to the 3GPP AAA Server authentication request.

Step S212, the 3GPP AAA Server checks whether there is local subscription information of the user. If not, the AAA initiates a SAR request (AAA_USER_DATA_REQUEST) to the HSS to obtain the user subscription information.

Step S213, the processing between the AAA and the HSS is referred to the SWx interface. Here, only the functional description, the HSS returns the SAA response to the 3GPP AAA Server.

In step S214, the AAA server needs to perform the following processing:

(1) Determine whether it is necessary to regenerate a random pseudonym;

(2) generating TEKs (master key MK, authentication password k_encr, encapsulation key k_aut, main session key MSK, extended main session key EMSK) and MAC according to the algorithm;

(3) The EAP playload parameters sent by the 3GPP AAA Server include ANID, RAND, AUTN (ANID, RAND, AUTN is part of the authentication quaternion), a message authentication code (MAC) and two user identities are assigned to the trusted Non-3GPP access gateway, and the EAP message is encapsulated in the DIAMETER DEA message. The AT_RESULT_IND attribute is carried in the EAP-Payload AVP, and the AT_TRUST_IND attribute value (TRUSTED) determined in step S205 is sent to the UE if the IP mobility mode needs to be dynamically determined.

Step S215, the trusted Non-3GPP access gateway sends an EAP-Request/AKA-Challenge message to the UE.

In step S216, the UE runs a UMTS (Universal Mobile Telecommunications System) algorithm in the USIM (Global Subscriber Identity Card). The USIM verifies the AUTN and authenticates the network accordingly. If the AUTN is verified incorrectly, the terminal rejects the authentication (not shown in this example). If the serial number verification fails, the terminal initiates a synchronization process.

Step S217, the trusted Non-3GPP access gateway sends an EAP-Response/AKA-Challenge message to the 3GPP AAA Server, and the EAP message is encapsulated in the DIAMETER DER message.

Step S218, the 3GPP AAA Server checks the received message authentication code (MAC, the MAC is calculated according to the secret key and the transmitted data to prevent the message from being destroyed), and compares XRES (Expected user Response) and received To RES (actual user response). If all checks are successful and the received DER request carries a result protection indication, the 3GPP AAA Server must send an EAP-Request/AKA-Notification message before sending the EAP Success message. If it is dynamically determining the IP mobility mode, it needs to be AT_IPMS_RES. The attribute is sent down. The EAP message is encapsulated in the DIAMETER DEA message and protected by MAC.

Step S219, the trusted Non-3GPP access gateway forwards the EAP message to the UE.

In step S220, the UE sends an EAP-Response/AKA-Notification.

Step S221, the trusted Non-3GPP access gateway sends an EAP-Response/AKA-Notification message to the 3GPP AAA Server, and the EAP packet is encapsulated. In the DIAMETER DER message. The 3GPP AAA Server must ignore the message content.

In step S222, after the authentication succeeds, the key changed in the authentication process needs to be updated. The AAA service module initiates an LDAP (Lightweight Directory Access Protocol) write request to the AAA storage module, updates the MSK, MSK-Timeout, re-authentication ID and re-authentication ID counter, random pseudonym (if regenerated), and The pseudo-ID counter (if changed) also updates the EMSK.

Step S223, after the AAA storage module updates the data, return an LDAP response to the AAA service module.

Step S224, the 3GPP AAA Server checks whether the user is allowed to use the Non-3GPP access, whether to use the subscribed APN7406455910s, whether the RAT-Type is in the RAT list allowed by the user subscription, and check whether the user has signed the APN7406455910 in the DER request. If the check is passed, an EAP Success message is sent to the trusted Non-3GPP access gateway (may be described before step 23) before the EAP-Notification is sent.

Step S225, the trusted Non-3GPP access gateway notifies the UE that the authentication is successful by using an EAP Success message. At this point, the EAP-AKA' interaction has been successfully completed.

Step S226, the AAA server carries a NAI (IMSI) and a service allocation type (REGISTRATION) to initiate a registration request to the HSS.

Step S227, the HSS sets the user status to REGISTERED, and then carries the user related data to initiate SAA insertion data to the AAA server.

In the above steps, the DER message (ie, Diameter-EAP-Request Command) mainly includes the following fields, and the meanings of the respective fields are as shown in Table 1:

{Auth-Request-Type}

{EAP-Payload}

[User-Name]

*[AVP]

Table 1

It should be noted that, for the Diameter uplink message, when the DAP module distributes the message to the DEP module, it is determined according to the state of the DEP module whether to distribute the message to the DEP module. After the virtualization of the VNF is introduced, the DAP module in the VNF process does not allow the DEP module to process the newly-initiated service message. The DAP module forwards the message to the DEP module in advance. This DEP module is filtered out.

The DAP module distributes the message according to the session (the callback connection) carried in the message and the running DEP module to select the appropriate DEP module. The DER message (that is, the communication message) of the 3GPP AAA SERVER network element has a scenario in which multiple messages are exchanged in a session. If the DEP module is offline (ie, reduced in size) according to the distribution policy of the DAP module above, the DAP module will not be used again. The remaining DER message in the session is distributed to the DEP module that originally processed the message, causing the call loss of the DER message.

In order to overcome the above problems, according to an embodiment of the present invention, a message sending method is provided. Method Embodiments, it should be noted that the steps shown in the flowchart of the accompanying drawings may be performed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flowchart, In some cases, the steps shown or described may be performed in a different order than that.

FIG. 3 is a flowchart of a method for sending a message according to an embodiment of the present invention. As shown in FIG. 3, the method includes the following steps:

Step S301: When the VNF is in elastic contraction, if the communication message of the network element is received, the message type of the communication message is obtained.

Step S302: Determine a target DEP module for processing the communication message based on the message type of the communication message.

Step S303, sending a communication message to the target DEP module.

According to the above embodiment, when the VNF is in elastic contraction, if the communication message of the network element is received, the message type of the communication message is acquired; the target DEP module for processing the communication message is determined based on the message type of the communication message; and the communication message is sent. The target DEP module is solved, thereby solving the technical problem that the message forwarding cannot be correctly performed due to the elastic contraction characteristic of the VNF in the related art, and the technical effect of correctly performing message forwarding in the elastic contraction is realized.

The architecture of the operating environment of the method of the present application is shown in FIG. 4, and in the Diameter logical architecture diagram, the DEP module (the session and transaction management module and its active and standby modules) and the DAP module (the connection management module and its active and standby modules) are mainly included. , DIM data transmission module (Diameter Data Transport Point, DIP module for short), platform adapter module, public module / PARSER module, OAM service module (Operation Administration and Maintenance, also known as Diameter operation management and maintenance module).

The above DIP module includes a LREG module (Diameter Local Registry, that is, a Diameter local registration node) and a preparation module thereof, a DTP module, a GREG module (Diameter Global Registry, that is, a Diameter global registration node), and an active/standby module thereof.

Optionally, the execution body of the foregoing step may be a bearer adaptation module DAP or the like, but is not limited thereto. The foregoing network element includes a 3GPP AAA SERVER network element; the foregoing communication message may be 3GPP DER message of the AAA SERVER network element (Diameter-EAP-Request).

In the above embodiment, in step S301, the message type of the communication message is obtained by: obtaining the identification information carried in the communication message; and determining the message type of the communication message by using the identification information.

Specifically, the obtaining the identifier information carried in the communication message includes: obtaining the identifier information carried in the Payload field in the communication message; determining, by using the identifier information, the message type of the communication message includes: determining whether there is a session connection corresponding to the identifier information, where The session connection corresponding to the information is the session connection to which the communication message belongs; if there is a session connection corresponding to the identification information, it is determined that the message type of the communication message is a non-originating message (ie, the Nth message of the session, N is greater than 1); If there is no session connection corresponding to the identification information, it is determined that the message type of the communication message is an origination message (the first message of the session).

Optionally, in step S302, determining, according to the message type of the communication message, the target DEP module for processing the communication message comprises: determining the DEP module associated with the session connection if the message type of the communication message is a non-originating message For the target DEP module, when the message type of the communication message is an initial message, one of the plurality of DEP modules is selected as the target DEP module, wherein the plurality of DEP modules are not allowed to be reduced during the preset time period. The DEP module.

It should be noted that the identification information is data information, and selecting one of the plurality of DEP modules as the target DEP module includes: determining the number of modules of the plurality of DEP modules; performing the remainder operation on the identification information by using the number of modules to obtain the identification data; A target DEP module that sequentially matches the identification data among the plurality of DEP modules, and associates the target DEP module with the session connection.

Specifically, the method of the present application can be applied to a message distribution policy in which the DER message is not interrupted when the Diameter service execution module is contracted under the virtualized 3GPP AAA SERVER network element VNF. The process is as follows:

When processing the DER message, the DAP module decodes the DER message to determine whether the Eap-payload (Extensible Authentication Protocol, Eap) in the DER message has eap-identity (ie, response). The distribution strategy is as follows:

1. If the Eap-payload in the DER message does not carry the eap-identity (response), the DAP considers that the application is processing the DER message (that is, the message in the existing session connection), DAP. Distribute messages according to the old DEP module (including the DEP module ready to be offline).

2. If the Eap-payload in the DER message carries the eap-identity (response), the DAP considers that it is a new service message initiated by the terminal, and the DAP distributes the message according to the new DEP module distribution (remove the DEP module to be reduced) .

In the above embodiment, the DER message is decoded by the DAP module, and whether the DER message is the originating message of the peer is determined according to whether the Eap-payload in the DER message carries the eap-identity (ie, the identifier information carried in the Payload field). If eap-identity (response) is taken, it is considered to be an initial message, and the distributed message is distributed according to the new DEP module, and the DEP module to be reduced is distributed and distributed. If there is no eap-identity (response), it is considered to be an intermediate message of the DER. The distributed message is distributed according to the old DEP module, and the DEP module that is ready to be reduced is reserved for distribution, so that the DEP module preparing to shrink can process the remaining messages of the DER. The DER message newly initiated by the peer network element is not processed, and the requirement that the service message is not interrupted when the DEP module is reduced is satisfied. When the DEP module in the Diameter layer carried by the 3GPP AAA SERVER network element is reduced, the DER message processed by the DAP module has a call loss, the UE attachment process fails, and the user cannot access the 3GPP network.

The DAP module of the Diameter system in the present application determines the message distribution policy flow of the DAP module according to whether the Eap-payload in the DER message carries the eap-identity (response), as shown in FIG. 2;

In step S202, the Diameter subsystem carried by the 3GPP AAA Server receives the DER message, and the DAP module of the Diameter decodes the DER message when processing the DER message, and determines whether the Eap-payload in the DER message has eap-identity (response) ), its distribution strategy is as follows:

1. If the Eap-payload in the DER message does not carry the eap-identity (response), the DAP considers that the application is processing the DER message (that is, the message in the existing session connection), and the DAP follows the old DEP module (including the preparation for offline). The DEP module) distributes the distributed messages.

2. If the Eap-payload in the DER message carries the eap-identity (response), the DAP considers that the DAP is a new service message initiated by the terminal, and the DAP is distributed according to the new DEP module. Prepare the denatured DEP module to remove the message.

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

Example 2

A message sending apparatus is also provided in the embodiment of the present invention. The device is used to implement the above embodiments and preferred embodiments, and the description thereof has been omitted. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

FIG. 5 is a schematic diagram of a message transmitting apparatus according to an embodiment of the present invention. As shown in FIG. 5, the apparatus may include an acquisition unit 51, a determination unit 52, and a transmission unit 53.

The obtaining unit 51 is configured to acquire a message type of the communication message if the communication message of the network element is received when the VNF is in elastic contraction.

The determining unit 52 is arranged to determine a target DEP module for processing the communication message based on the message type of the communication message.

The sending unit 53 is configured to send a communication message to the target DEP module.

With the above embodiment, the acquiring unit acquires the message type of the communication message when the VNF is in the elastic contraction state, and determines the message type of the communication message based on the message type of the communication message, and determines the target DEP module for processing the communication message. The sending unit sends a communication message to the target DEP module. Therefore, the technical problem that the message forwarding cannot be correctly performed due to the elastic contraction characteristic of the VNF in the related art is solved, and the message forwarding can be correctly performed even during the elastic contraction. The technical effect of hair.

The foregoing network element includes a 3GPP AAA SERVER network element; the foregoing communication message may be a DER message (Diameter-EAP-Request) of the 3GPP AAA SERVER network element.

In the above embodiment, the obtaining unit includes: an obtaining module, configured to obtain the identifier information carried in the communication message; and the first determining module is configured to determine the message type of the communication message by using the identifier information.

Specifically, the obtaining module is further configured to obtain the identifier information carried in the Payload field in the communication message. The first determining module includes: a determining sub-module, configured to determine whether there is a session connection corresponding to the identifier information, wherein the session connection corresponding to the identifier information is a session connection to which the communication message belongs; and the first determining sub-module is set to exist if Determining, by the session connection corresponding to the identifier information, the message type of the communication message is a non-originating message; and the second determining sub-module is configured to determine that the message type of the communication message is originating if there is no session connection corresponding to the identifier information Message.

Optionally, the determining unit includes: a second determining module, configured to determine that the DEP module associated with the session connection is the target DEP module if the message type of the communication message is a non-originating message; and the selecting module is set to be in the communication In the case that the message type of the message is an originating message, one of the plurality of DEP modules is selected as the target DEP module, wherein the plurality of DEP modules are DEP modules that are not allowed to be reduced in the preset time period.

It should be noted that the identification information is data information, and the selection module includes: a third determining sub-module, configured to determine a number of modules of the plurality of DEP modules; and an operation sub-module configured to perform a remainder operation on the identification information by using the number of modules, Identifying the data; acquiring the sub-module, and setting the target DEP module that matches the sequence data in the plurality of DEP modules, and associating the target DEP module with the session connection.

It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination. The forms are located in different processors.

Example 3

Embodiments of the present invention also provide a storage medium. Optionally, in this embodiment, on The storage medium can be configured to store program code for performing the following steps:

S1, when the VNF is in elastic contraction, if the communication message of the network element is received, the message type of the communication message is obtained;

S2. Determine a target DEP module for processing the communication message based on the message type of the communication message.

S3, sending a communication message to the target DEP module.

Optionally, in this embodiment, the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory. A variety of media that can store program code, such as a disc or a disc.

Optionally, in this embodiment, the processor executes according to the stored program code in the storage medium: when the VNF is in elastic contraction, if the communication message of the network element is received, the message type of the communication message is acquired; The message type of the message determines the target DEP module for processing the communication message; the communication message is sent to the target DEP module.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

Claims

A method for sending a message, comprising:

When the VNF is in elastic contraction, if the communication message of the network element is received, the message type of the communication message is obtained;

Determining a target DEP module for processing the communication message based on a message type of the communication message;

Sending the communication message to the target DEP module.
The method of claim 1, wherein the obtaining the message type of the communication message comprises:

Obtaining identification information carried in the communication message;

The message type of the communication message is determined by the identification information.
The method of claim 2, wherein the obtaining the identification information carried in the communication message comprises:

Obtaining the identifier information carried in the Payload field in the communication message.
The method of claim 2, wherein determining the message type of the communication message by using the identification information comprises:

Determining whether there is a session connection corresponding to the identifier information, where the session connection corresponding to the identifier information is a session connection to which the communication message belongs;

If the session connection corresponding to the identifier information exists, determining that the message type of the communication message is a non-originating message;

If there is no session connection corresponding to the identifier information, determining that the message type of the communication message is an originating message.
The method of claim 4, wherein determining a target DEP module for processing the communication message based on a message type of the communication message comprises:

In the case that the message type of the communication message is a non-originating message, determining that the association is The DEP module connected to the session is the target DEP module;

When the message type of the communication message is an originating message, one of the plurality of DEP modules is selected as the target DEP module, wherein the plurality of DEP modules are not allowed to be shortened within a preset time period. The capacity of the DEP module.
The method according to claim 5, wherein the identification information is data information, and selecting one of the plurality of DEP modules as the target DEP module comprises:

Determining the number of modules of the plurality of DEP modules;

Performing a remainder operation on the identification information by using the number of modules to obtain identification data;

Obtaining the target DEP module in the plurality of DEP modules that matches the identification data in sequence, and associating the target DEP module with the session connection.
The method of claim 1 wherein said network element comprises a 3GPP AAA SERVER network element.
A message sending device includes:

Obtaining a unit, configured to acquire a message type of the communication message if a communication message of the network element is received when the VNF is in elastic contraction;

a determining unit, configured to determine a target DEP module for processing the communication message based on a message type of the communication message;

And a sending unit, configured to send the communication message to the target DEP module.
The apparatus of claim 8, wherein the obtaining unit comprises:

The obtaining module is configured to obtain the identifier information carried in the communication message;

The first determining module is configured to determine, by using the identification information, a message type of the communication message.
The apparatus according to claim 9, wherein the obtaining module is further configured to acquire the identification information carried in the Payload field in the communication message.
The apparatus of claim 9, wherein the first determining module comprises:

a judging module, configured to determine whether there is a session connection corresponding to the identifier information, where the session connection corresponding to the identifier information is a session connection to which the communication message belongs;

a first determining submodule, configured to determine that the message type of the communication message is a non-originating message if there is a session connection corresponding to the identifier information;

The second determining submodule is configured to determine that the message type of the communication message is an originating message if there is no session connection corresponding to the identifier information.
The apparatus according to claim 11, wherein said determining unit comprises:

a second determining module, configured to determine that the DEP module associated with the session connection is the target DEP module if the message type of the communication message is a non-originating message;

And the selecting module is configured to: when the message type of the communication message is an initial message, select one of the plurality of DEP modules as the target DEP module, wherein the plurality of DEP modules are in a preset time period A DEP module that is not allowed to be reduced in size.
The device according to claim 12, wherein the identification information is data information, and the selecting module comprises:

a third determining submodule, configured to determine a number of modules of the plurality of DEP modules;

An operation submodule, configured to perform a remainder operation on the identification information by using the number of modules to obtain identification data;

Obtaining a sub-module, configured to acquire the target DEP module in the plurality of DEP modules that matches the identification data in sequence, and associate the target DEP module with the session connection.
The apparatus of claim 8 wherein said network element comprises a 3GPP AAA SERVER network element.
A storage medium, characterized in that the storage medium includes a stored program. Wherein the program is executed to perform the method of any one of claims 1 to 7.