CN111193644A - vBRAS service transmission method, device, terminal equipment and medium - Google Patents

vBRAS service transmission method, device, terminal equipment and medium Download PDF

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Publication number
CN111193644A
CN111193644A CN201811355429.7A CN201811355429A CN111193644A CN 111193644 A CN111193644 A CN 111193644A CN 201811355429 A CN201811355429 A CN 201811355429A CN 111193644 A CN111193644 A CN 111193644A
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China
Prior art keywords
message
control
control server
forwarding
routing information
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CN201811355429.7A
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Chinese (zh)
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晁军显
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China Mobile Communications Group Co Ltd
China Mobile Hangzhou Information Technology Co Ltd
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China Mobile Communications Group Co Ltd
China Mobile Hangzhou Information Technology Co Ltd
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Priority to CN201811355429.7A priority Critical patent/CN111193644A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2854—Wide area networks, e.g. public data networks
    • H04L12/2856—Access arrangements, e.g. Internet access
    • H04L12/2869—Operational details of access network equipments
    • H04L12/287—Remote access server, e.g. BRAS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/12—Shortest path evaluation
    • H04L45/125—Shortest path evaluation based on throughput or bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/35—Switches specially adapted for specific applications
    • H04L49/354—Switches specially adapted for specific applications for supporting virtual local area networks [VLAN]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/70—Virtual switches
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2212/00—Encapsulation of packets

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

Abstract

The application discloses a vBRAS service transmission method, a device, terminal equipment and a medium, belonging to the technical field of communication, wherein the method comprises the steps of applying the method to a vBRAS system consisting of an SDN switch and a control server, and receiving a first message sent by a user terminal by the SDN switch; judging whether the message type of the first message is a control message, if so, forwarding the first message to a control server, and triggering the control server to perform service processing according to the first message; otherwise, sending the first message to a network side according to the stored routing information; the routing information is obtained according to a control message sent by a controller through a specified protocol. Therefore, the forwarding plane adopts the SDN switch to realize high-performance and high-throughput forwarding of service data, the control plane adopts the control server to realize control logic processing, and the real separation and standardization of the forwarding plane and the control plane of the vBRAS system are realized.

Description

vBRAS service transmission method, device, terminal equipment and medium
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, a terminal device, and a medium for transmitting a vbrs service.
Background
A Broadband Remote Access Server (BRAS) is a network device used to complete Access, authentication, charging, control and management of Broadband network users in various Broadband Access modes, and is a foundation for operation and management of Broadband networks.
In the prior art, in order to break the coupling between software and hardware, so that the BRAS service is centralized on a software level, a Network Function Virtualization (NFV) technology framework (NFV) is fused with the BRAS, and a Virtualized Broadband Remote Access Server (vbars) is obtained.
However, the forwarding plane and the control plane of the vbars are not really separated, the forwarding plane still has a routing control function, and the division between the forwarding plane and the control plane has no boundary or standard.
Disclosure of Invention
The embodiment of the application provides a vBRAS service transmission method, a vBRAS service transmission device, terminal equipment and a medium, which are used for decoupling a forwarding plane and a control plane of a vBRAS when the vBRAS service is transmitted, so that the control plane is only responsible for control functions such as routing calculation and the like, and the forwarding plane is only responsible for forwarding, thereby realizing the forwarding separation and standardization of the vBRAS.
In one aspect, a vbrs service transmission method is provided, and is applied to a vbrs system including an SDN switch and a control server, and includes:
the SDN switch receives a first message sent by a user terminal;
judging whether the message type of the first message is a control message, if so, forwarding the first message to a control server, and triggering the control server to perform service processing according to the first message;
otherwise, sending the first message to a network side according to the stored routing information;
the routing information is obtained according to a control message sent by a controller through a specified protocol.
Preferably, after forwarding the first packet to the control server, the method further includes:
if an access permission response message returned by the control server through a specified protocol is received, acquiring routing control information contained in the access permission response message, and adjusting the routing information according to the routing control information;
and forwarding the permission access response message to the user terminal.
Preferably, after forwarding the first packet to the control server, the method further includes:
and if receiving a response message of refusing the access returned by the control server through a specified protocol, directly forwarding the response message of refusing the access to the user terminal.
Preferably, the sending the first packet to the network side according to the stored routing information includes:
if the first message is a message of a specified type, decapsulating the first message to obtain an IP contained in the first message;
and according to the IP contained in the first message and the routing information, sending the decapsulated first message to a network side.
Preferably, the method further comprises the following steps:
if a second message sent by the network side is received, judging whether the second message is a message of a specified type, if so, encapsulating the second message, and sending the encapsulated second message to the user terminal according to the routing information;
otherwise, the second message is directly sent to the user terminal according to the routing information.
Preferably, the triggering the control server to perform service processing according to the first packet includes:
identifying the message type of the first message, sending the first message to a corresponding message access server according to the message type, receiving a processing result returned by the message access server, and sending a message containing routing control information to the SDN switch according to the processing result.
In one aspect, a vbrs service transmission apparatus is provided, which is applied to a vbrs system including a Software Defined Network (SDN) switch and a control server, and includes:
the receiving unit is used for receiving a first message sent by a user terminal;
the judging unit is used for judging whether the message type of the first message is a control message or not, if so, forwarding the first message to the control server, and triggering the control server to perform service processing according to the first message; otherwise, sending the first message to a network side according to the stored routing information;
the routing information is obtained according to a control message sent by a controller through a specified protocol.
Preferably, after forwarding the first packet to the control server, the determining unit is further configured to:
if an access permission response message returned by the control server through a specified protocol is received, acquiring routing control information contained in the access permission response message, and adjusting the routing information according to the routing control information;
and forwarding the permission access response message to the user terminal.
Preferably, after forwarding the first packet to the control server, the determining unit is further configured to:
and if receiving a response message of refusing the access returned by the control server through a specified protocol, directly forwarding the response message of refusing the access to the user terminal.
Preferably, when sending the first packet to the network side according to the stored routing information, the determining unit is configured to:
if the first message is a message of a specified type, decapsulating the first message to obtain an IP contained in the first message;
and according to the IP contained in the first message and the routing information, sending the decapsulated first message to a network side.
Preferably, the judging unit is further configured to:
if a second message sent by the network side is received, judging whether the second message is a message of a specified type, if so, encapsulating the second message, and sending the encapsulated second message to the user terminal according to the routing information;
otherwise, the second message is directly sent to the user terminal according to the routing information.
Preferably, when triggering the control server to perform service processing according to the first packet, the determining unit is configured to:
identifying the message type of the first message, sending the first message to a corresponding message access server according to the message type, receiving a processing result returned by the message access server, and sending a message containing routing control information to the SDN switch according to the processing result.
In one aspect, a terminal device is provided, which includes at least one processing unit and at least one storage unit, where the storage unit stores a computer program, and when the program is executed by the processing unit, the processing unit executes any of the steps of the foregoing vbrs service transmission method.
In one aspect, a computer readable medium is provided, which stores a computer program executable by a terminal device, and when the program is run on the terminal device, the program causes the terminal device to execute the steps of any one of the foregoing vbrs service transmission methods.
The method, the device, the terminal equipment and the medium for vBRAS service transmission provided by the embodiment of the application are applied to a vBRAS system consisting of an SDN switch and a control server, wherein the SDN switch receives a first message sent by a user terminal; judging whether the message type of the first message is a control message, if so, forwarding the first message to a control server, and triggering the control server to perform service processing according to the first message; otherwise, sending the first message to a network side according to the stored routing information; the routing information is obtained according to a control message sent by a controller through a specified protocol. Therefore, the forwarding plane adopts the SDN switch to realize high-performance and high-throughput forwarding of service data, the control plane adopts the control server to realize control logic processing, and the real separation and standardization of the forwarding plane and the control plane of the vBRAS system are realized.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1a is a schematic architecture diagram of a handover control separation vbars system according to the present application;
fig. 1b is a schematic diagram of a service function module of a control plane provided in the present application;
fig. 1c is a schematic diagram of a service function module of a forwarding plane provided in the present application;
fig. 1d is a schematic view of a vbrs service application scenario provided in the present application;
fig. 2 is a flowchart of an implementation of a vbrs service transmission method in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a vbrs service transmission apparatus according to an embodiment of the present application.
Detailed Description
In order to decouple a forwarding plane and a control plane of a vBRAS when a vBRAS service is transmitted, so that the control plane is only responsible for control functions such as routing calculation and the like, and the forwarding plane is only responsible for forwarding, thereby realizing the forwarding separation and standardization of a vBRAS system, the embodiment of the application provides a vBRAS service transmission method, a device, terminal equipment and a medium.
Fig. 1a is a schematic diagram illustrating an architecture of a handover control separation vbars system. The diversion-separation vbars system comprises a control server 101 and a Software Defined Network (SDN) switch 102.
The control server 101: as a Control Plane (BRAS Control Plane, BRAS-CP), complex service Control is performed in a centralized manner, and a Central Processing Unit (CPU) intensive computation-like service is executed. Such as user management, routing control, address pool management, and Point-to-Point protocol over Ethernet (PPPoE) access control.
In the embodiment of the present application, the control server 101 may adopt a common standard server, and implement all the functions of the conventional BRAS in a software manner, without depending on specific hardware, thereby bringing about excellent convenience to service change and expansion.
SDN switch 102: the method is used as a forwarding Plane (BRAS User Plane, BRAS-UP) for simply encapsulating and decapsulating the service message and forwarding the service message with high performance and high throughput.
The BRAS-UP adopts the SDN switch, can fully exert the advantages of simple and limited CPU processing capacity, extremely high forwarding performance and high throughput, and meets the requirement of high-speed internet access of users.
Optionally, the SDN switch 102 may employ a white-box switch, since the white-box switch may implement seamless interfacing with a mainstream SDN controller, and is generally deployed in a virtual switch (OpenvSwitch) or an operating system logically equivalent to the OpenvSwitch. The SDN controller may refer to an Open Network Operating System (ONOS), an OpenDayLight controller, and the like.
The core of the SDN is that control and bearer are separated, so that network opening is achieved, and traffic can be flexibly controlled, thereby providing more optimized services for upper-layer services and applications. The embodiment of the application fuses an SDN forwarding and control separation technology framework, adopts a standardized server and an SDN switch to construct a transfer control separation vBRAS system, and divides vBRAS service transmission into a control plane service function module and a forwarding plane service function module. Three-layer decoupling of vBRAS equipment is achieved, technical threshold and equipment cost are reduced, and vBRAS standardization is achieved. Therefore, the BRAS-CP adopts a standardized server to realize the software of all the control plane service functions, the south is butted with the BRAS-UP, and a control message is sent to the BRAS-UP through a specified protocol to control the BRAS-UP. Wherein the specified protocol comprises an open flow (OpenFlow) protocol.
Fig. 1b is a schematic diagram of a service function module of the control plane. The traffic function module of the control plane may include: PPPoE control, user management, Remote Dial-UP Authentication system (Remote Authentication Dial In user service, Radius), UP management, NFV framework, Dynamic Host Configuration Protocol (DHCP), address management, Authentication, Authorization, and Accounting (AAA), OpenFlow protocol, multi-protocol Label Switching (MPLS), multicast, and the like.
Fig. 1c is a schematic diagram of a service function module of a forwarding plane. The service function module of the forwarding plane comprises: IP forwarding, label forwarding, OpenFlow protocol, PPPoE Service, hierarchical quality of Service (HQoS), and Access Control List (ACL).
The following describes embodiments of the present application with specific application scenarios. Fig. 1d is a schematic diagram of a vbrs service application scenario. The vBRAS service application scene comprises a control message application scene and a data message application scene.
The specific implementation steps of the control message application scene comprise:
s11, the user terminal sends the message to the BRAS-UP through an Optical Line Terminal (OLT).
S12, BRAS-UP identifies the received message, and forwards the message to BRAS-CP when the message is determined to be a control message.
And S13, BRAS-CP interacting with other peripheral modules according to the received control message to complete user access control.
Wherein, the user access control comprises: authentication, accounting, authorization, and IP address assignment, etc. Other peripheral modules include: AAA, DHCP, Management and organization (MANO), and network Element Management System (EMS). The BRAS-CP interacts with the AAA through Radius to realize authentication, authorization and accounting functions. BRAS-CP interacts with MANOs through a constraint principle (Restful). The EMS interacts with the BRAS-CP and BRAS-UP through a Simple Network Management Protocol (SNMP), and an XML-based Network configuration (NETCONF)/yang Protocol, and interacts with a Core Router (CR) through a Simple Network Management Protocol (SNMP).
S14, if the interaction result is that the access is allowed, the BRAS-CP sends an access allowance response message containing the route control information to the BRAS-UP through the appointed protocol, otherwise, the BRAS-UP sends a response message of refusing the access.
The specified protocol includes an OpenFlow protocol, Netconf, a network virtualization technology (VxLAN), and the like. The BRAS-CP issues a message containing routing control information through an OpenFlow protocol, issues a message containing configuration information through Netconf, and issues a tunnel bearing service through VxLAN.
S15, if BRAS-UP receives the response message of allowing access, then adjust the stored route information according to the route control information, otherwise, transmit the response message of refusing access to the user terminal.
The implementation step of sending the service message to the network side in the data message application scene comprises the following steps:
s21, the user terminal sends service message to BRAS-UP through OLT.
S22, BRAS-UP forwards the service message to the network side (Internet) through CR.
The implementation step of receiving the service message returned by the network side in the data message application scene comprises the following steps:
s31, BRAS-UP receives the service message returned by Internet through CR.
And S32, BRAS-UP sends service message to user terminal through OLT.
Therefore, BRAS-CP and BRAS-UP are strictly divided according to SDN standards, the BRAS-UP is only responsible for traffic forwarding, all control logic is contracted to the BRAS-CP, the huge logic advantages of the BRAS-CP are brought into play, and the real SDN of a transfer control separation vBRAS system is promoted.
Referring to fig. 2, it is a flowchart of an implementation of a vbrs service transmission method provided in the present application. In the following description, the specific implementation flow of the method is as follows:
step 200: and the user terminal sends a first message to the SDN switch through the OLT.
Step 201: the SDN switch determines whether the packet type of the first packet is a control packet, if so, performs step 202, otherwise, performs step 206.
Step 202: and forwarding the first message to a control server by the SDN switch.
Step 203: and the control server interacts with other peripheral modules according to the received first message to finish the user access control.
Specifically, the control server identifies the message type of the first message, sends the first message to the corresponding message access server according to the message type, and receives a processing result returned by the message access server.
Wherein, the user access control comprises: authentication, accounting, authorization, and IP address assignment, etc. Other peripheral modules include: AAA, DHCP, MANO, and EMS. The BRAS-CP interacts with the AAA through Radius to realize authentication, authorization and accounting functions. BRAS-CP interacts with MANOs through Restful. EMS interacts with BRAS-CP and BRAS-UP through SNMP or NETCONF/yang, and interacts with CR through SNMP protocol.
For example, the control server identifies the first packet, determines that the packet type of the first packet is a PPPoE packet, forwards the PPPoE packet to the PPPoE access control server, and after performing access control on the first packet, the PPPoE access control server returns an access result to the control server. The access control includes Point-to-Point protocol (PPP) negotiation, authentication, and the like.
Step 204: and the SDN switch adjusts the stored routing information according to the received access permission response message sent by the control server.
Specifically, if the SDN switch receives an access permission response message sent by the control server, the SDN switch acquires the routing control information included in the access permission response message, and adjusts the locally stored routing information according to the routing control information.
Step 205: the SDN switch forwards the allow access response message to the user terminal.
Further, if the SDN switch receives an access denial response message sent by the control server, the access denial response message is also forwarded to the user terminal.
In this way, the control server identifies the service (i.e., the control packet) to interface the service with the extensible packet access server, and sends routing control information to the SDN switch according to the returned processing result to control the SDN switch to perform routing adjustment, thereby controlling forwarding of the packet.
Step 206: and the SDN switch directly sends the first message to a network side.
Specifically, the SDN switch classifies the first packet, decapsulates the first packet to obtain an Internet Protocol (IP) of the first packet if the first packet is a packet of a specific type, and sends the decapsulated first packet to the Internet through the CR according to the routing information and the obtained IP; otherwise, the first message is directly sent to the Internet.
Optionally, the specified type of packet may be PPPoE, DHCP + authentication (IPoE), packet-oriented peer-to-peer connection Protocol (L2 Tunneling Protocol, L2TP), and the like. PPPoE is a common technical means for user broadband access, and because of having a special packaging format, a common routing switch device cannot perform routing forwarding on PPPoE messages, and needs BRAS-CP and BRAS-UP to perform corresponding processing.
BRAS-UP needs to encapsulate and decapsulate PPPoE messages.
Step 207: and the SDN switch receives a second message returned by the network side.
Specifically, the SDN switch receives a second packet returned by the network side through the CR.
Step 208: and the SDN switch forwards the second message to the user terminal through the OLT.
Specifically, if the second message is a specified type message, the SDN switch encapsulates the second message according to a destination address of the second message, and sends the encapsulated second message to the user terminal according to the routing information; otherwise, the second message is directly sent to the user terminal according to the routing information.
Therefore, the specified type of messages can be packaged and unpackaged by adopting the forwarding surface of the SDN switch, and the specified type of messages and the corresponding messages can be interactively processed by adopting the control surface of the control server, so that the specified type of messages can be processed in a linkage mode.
In the embodiment of the application, the forwarding surface adopts the SDN switch, so that the forwarding of the data service with high performance and high throughput can be realized, the high-performance forwarding advantage of the SDN switch is fully exerted, the broadband is improved, the time delay is reduced, and the broadband service quality is improved; the control plane uses a control server to implement all control functions, such as routing computations. Therefore, a forwarding plane and a control plane are completely separated, and due to the adoption of a standardized SDN switch, the control server can communicate with the SDN switch in modes such as a standardized protocol, so that a vBRAS southbound interface is standardized, the comprehensive standardization of a transfer control separation vBRAS system is realized in a breakthrough manner, the interoperation with a manufacturer can be realized, and the monopoly of traditional equipment vendors is broken.
In an embodiment of the present application, an electronic device includes: one or more processors; and
one or more computer readable media having stored thereon a program for vbrs traffic transport, wherein the program, when executed by one or more processors, performs the steps in the above embodiments.
In an embodiment of the present application, one or more computer-readable media having a program stored thereon for vbrs traffic transmission are provided, where the program, when executed by one or more processors, enables a communication device to perform the steps in the above embodiments.
Based on the same inventive concept, the embodiment of the present application further provides a vbrs service transmission apparatus, and since the principle of the apparatus and the device for solving the problem is similar to that of a vbrs service transmission method, the implementation of the apparatus may refer to the implementation of the method, and repeated parts are not described again.
As shown in fig. 3, a schematic structural diagram of a vbrs service transmission apparatus provided in an embodiment of the present application is applied to a vbrs system including a Software Defined Network (SDN) switch and a control server, and includes:
a receiving unit 30, configured to receive a first message sent by a user terminal;
the determining unit 31 is configured to determine whether a packet type of the first packet is a control packet, and if so, forward the first packet to the control server, and trigger the control server to perform service processing according to the first packet; otherwise, sending the first message to a network side according to the stored routing information;
the routing information is obtained according to a control message sent by a controller through a specified protocol.
Preferably, after forwarding the first packet to the control server, the determining unit 31 is further configured to:
if an access permission response message returned by the control server through a specified protocol is received, acquiring routing control information contained in the access permission response message, and adjusting the routing information according to the routing control information;
and forwarding the permission access response message to the user terminal.
Preferably, after forwarding the first packet to the control server, the determining unit 31 is further configured to:
and if receiving a response message of refusing the access returned by the control server through a specified protocol, directly forwarding the response message of refusing the access to the user terminal.
Preferably, when sending the first packet to the network side according to the stored routing information, the determining unit 31 is configured to:
if the first message is a message of a specified type, decapsulating the first message to obtain an IP contained in the first message;
and according to the IP contained in the first message and the routing information, sending the decapsulated first message to a network side.
Preferably, the judging unit 31 is further configured to:
if a second message sent by the network side is received, judging whether the second message is a message of a specified type, if so, encapsulating the second message, and sending the encapsulated second message to the user terminal according to the routing information;
otherwise, the second message is directly sent to the user terminal according to the routing information.
Preferably, when triggering the control server to perform service processing according to the first packet, the determining unit 31 is configured to:
identifying the message type of the first message, sending the first message to a corresponding message access server according to the message type, receiving a processing result returned by the message access server, and sending a message containing routing control information to the SDN switch according to the processing result.
The method, the device, the terminal equipment and the medium for vBRAS service transmission provided by the embodiment of the application are applied to a vBRAS system consisting of an SDN switch and a control server, wherein the SDN switch receives a first message sent by a user terminal; judging whether the message type of the first message is a control message, if so, forwarding the first message to a control server, and triggering the control server to perform service processing according to the first message; otherwise, sending the first message to a network side according to the stored routing information; the routing information is obtained according to a control message sent by a controller through a specified protocol. Therefore, the forwarding plane adopts the SDN switch to realize high-performance and high-throughput forwarding of service data, the control plane adopts the control server to realize control logic processing, and the real separation and standardization of the forwarding plane and the control plane of the vBRAS system are realized.
For convenience of description, the above parts are separately described as modules (or units) according to functional division. Of course, the functionality of the various modules (or units) may be implemented in the same one or more pieces of software or hardware when implementing the present application.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (9)

1. A virtual broadband remote access server vBRAS service transmission method is applied to a vBRAS system composed of a Software Defined Network (SDN) switch and a control server, and comprises the following steps:
the SDN switch receives a first message sent by a user terminal;
judging whether the message type of the first message is a control message, if so, forwarding the first message to a control server, and triggering the control server to perform service processing according to the first message;
otherwise, sending the first message to a network side according to the stored routing information;
wherein, the routing information is obtained according to a control message sent by the controller through a specified protocol.
2. The method of claim 1, wherein after forwarding the first packet to a control server, further comprising:
if an access permission response message returned by the control server through a specified protocol is received, acquiring routing control information contained in the access permission response message, and adjusting routing information according to the routing control information;
and forwarding the access permission response message to the user terminal.
3. The method of claim 1, wherein after forwarding the first packet to a control server, further comprising:
and if receiving a response message of refusing access returned by the control server through a specified protocol, directly forwarding the response message of refusing access to the user terminal.
4. The method of claim 1, wherein sending the first packet to a network side according to the stored routing information comprises:
if the first message is a message of a specified type, decapsulating the first message to obtain an IP contained in the first message;
and according to the IP contained in the first message and the routing information, sending the decapsulated first message to a network side.
5. The method of any one of claims 1-4, further comprising:
if a second message sent by a network side is received, judging whether the second message is a message of a specified type, if so, encapsulating the second message, and sending the encapsulated second message to a user terminal according to the routing information;
otherwise, the second message is directly sent to the user terminal according to the routing information.
6. The method according to any of claims 1-4, wherein triggering the control server to perform service processing according to the first packet comprises:
and triggering the control server to execute the following steps of identifying the message type of the first message, sending the first message to a corresponding message access server according to the message type, receiving a processing result returned by the message access server, and sending a message containing routing control information to the SDN switch according to the processing result.
7. A virtual broadband remote access server vbars service transmission apparatus, applied to a vbars system composed of a Software Defined Network (SDN) switch and a control server, comprising:
the receiving unit is used for receiving a first message sent by a user terminal;
the judging unit is used for judging whether the message type of the first message is a control message, if so, forwarding the first message to a control server, and triggering the control server to perform service processing according to the first message; otherwise, sending the first message to a network side according to the stored routing information;
wherein, the routing information is obtained according to a control message sent by the controller through a specified protocol.
8. A terminal device, comprising at least one processing unit and at least one memory unit, wherein the memory unit stores a computer program which, when executed by the processing unit, causes the processing unit to carry out the steps of the method according to any one of claims 1 to 6.
9. A computer-readable medium, in which a computer program executable by a terminal device is stored, which program, when run on the terminal device, causes the terminal device to carry out the steps of the method according to any one of claims 1 to 6.
CN201811355429.7A 2018-11-14 2018-11-14 vBRAS service transmission method, device, terminal equipment and medium Pending CN111193644A (en)

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CN112491576A (en) * 2020-09-29 2021-03-12 中兴通讯股份有限公司 Network configuration sending method and device, storage medium and electronic device
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