CN110430115B - Service recovery method, system, network device and computer readable storage medium - Google Patents
Service recovery method, system, network device and computer readable storage medium Download PDFInfo
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- CN110430115B CN110430115B CN201910679542.9A CN201910679542A CN110430115B CN 110430115 B CN110430115 B CN 110430115B CN 201910679542 A CN201910679542 A CN 201910679542A CN 110430115 B CN110430115 B CN 110430115B
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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]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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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]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
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Abstract
The application provides a service recovery method, a system, network equipment and a computer readable storage medium, and relates to the technical field of communication. The method comprises the following steps: configuring a standby control plane according to configuration information sent by a controller, wherein the configuration information comprises configuration data of a main control plane; establishing a connection tunnel between the forwarding plane and the forwarding plane according to a tunnel construction instruction and configuration data sent by the controller; receiving a message sent by a forwarding plane through a connection tunnel, wherein the message comprises message type information; and processing the message according to the message type information of the message. The established standby control plane is configured, and the connection tunnel between the standby control plane and the forwarding plane is established, so that the message sent by the forwarding plane is received through the connection tunnel, the message is processed according to the message type information of the message, the service of the main control plane is recovered, the problem that the service cannot be recovered when the link connection between the main control plane and the forwarding plane fails is solved, and the flexibility and the reliability of the recovered service are improved.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method, a system, a network device, and a computer-readable storage medium for service recovery.
Background
With the increasing of Broadband users, in order to provide better services to users, a transfer Control separated cloud BRAS (Broadband Remote Access Server) architecture may be adopted, so that a CP (Control Plane) is generated in a service Server in the transfer Control separated cloud BRAS architecture, and an UP (User Plane, forwarding Plane or User Plane) is formed on a BRAS device.
In the related technology, each CP in the service server is connected to an UP link, and the UP receives and forwards a service packet triggered by a user to the CP, so that the CP can perform authorization, offline or renewal service on an account corresponding to the service packet according to the received service packet, and send user access information corresponding to the service packet to the UP and the database.
When a link connection between a certain CP and UP fails, a controller in a cloud BRAS architecture with separated switching control may establish a new virtual machine in a service server, so that the established virtual machine is used as a new CP, and the new CP is controlled to acquire user access data from a database, and then a connection tunnel between the new CP and UP is configured, thereby implementing service recovery.
However, when each CP in the service server and the link of the UP are failed, the communication with the UP cannot be performed, and a connection tunnel between the UP and a new CP cannot be established, which causes service interruption and fails to implement service restoration.
Disclosure of Invention
An object of the present application is to provide a method, a system, a network device, and a computer-readable storage medium for service recovery, so as to solve the problem that service recovery cannot be realized due to service interruption when a failure occurs in a link between each CP and UP in a service server.
In order to achieve the above purpose, the technical solutions adopted in the embodiments of the present application are as follows:
in a first aspect, an embodiment of the present application provides a service recovery method, which is applied to a backup control plane of a VBRAS of a virtual broadband remote access server, where the VBRAS further includes: a forwarding plane and a main control plane, wherein the standby control plane and the main control plane are in different virtual machines in a server where the VBRAS is located, the server further includes a controller, and the method includes:
configuring the standby control plane according to configuration information sent by the controller, wherein the configuration information comprises configuration data of the main control plane;
establishing a connection tunnel between the forwarding plane and the controller according to the tunnel construction instruction sent by the controller and the configuration data;
receiving a message sent by the forwarding plane through the connection tunnel, wherein the message comprises message type information;
and processing the message according to the message type information of the message.
Optionally, the processing the packet according to the packet type information of the packet includes:
acquiring original user access information from a database, wherein the database is used for storing the user access information;
if the message type information indicates that the message is an offline message or a continuation message, searching whether a service session corresponding to the message is included in the original user access information;
and if the original user access information comprises the service session corresponding to the message, performing offline or renewal on the account corresponding to the message.
Optionally, after searching whether the service session corresponding to the packet is included in the original user access information, the method further includes:
if the original user access information does not include the service session corresponding to the message, sending a query instruction to the database, wherein the query instruction is used for querying the service session corresponding to the message;
receiving a service session corresponding to the message fed back by the database according to the query instruction;
and according to the service session corresponding to the message, carrying out offline or renewal on the account corresponding to the message.
Optionally, the processing the packet according to the packet type information of the packet includes:
and if the message type information indicates that the message is an online message, authorizing an account corresponding to the message.
Optionally, after the account corresponding to the packet is authorized, the method further includes:
acquiring user access information corresponding to the message;
and sending user access information corresponding to the message to the forwarding plane.
Optionally, the method further includes:
and if the preset timing period is met or the original user access information is completely backed up from the database, sending local user access information to be synchronized to the database.
In a second aspect, an embodiment of the present application further provides a service recovery method, applied to a controller of a server in which a VBRAS is located, where the VBRAS includes: a forwarding plane, a main control plane and a standby control plane, wherein the standby control plane and the main control plane are in different virtual machines in a server where the VBRAS is located, and the method includes:
after detecting that the link connection between the main control plane and the forwarding plane is failed, establishing the standby control plane;
and sending configuration information and a tunnel construction instruction to the standby control plane, wherein the configuration information comprises configuration data of the main control plane, and the tunnel construction instruction is used for indicating the standby control plane to establish a connection tunnel with the forwarding plane.
In a third aspect, an embodiment of the present application further provides a service resuming device, which is applied to a standby control plane of a VBRAS of a virtual broadband remote access server, where the VBRAS further includes: a forwarding plane and a main control plane, wherein the standby control plane and the main control plane are in different virtual machines in a server where the VBRAS is located, the server further includes a controller, and the apparatus includes:
a configuration module, configured to configure the standby control plane according to configuration information sent by the controller, where the configuration information includes configuration data of the main control plane;
the tunnel establishing module is used for establishing a connection tunnel with the forwarding plane according to the tunnel establishing instruction sent by the controller and the configuration data;
a first receiving module, configured to receive a message sent by the forwarding plane through the connection tunnel, where the message includes message type information;
and the processing module is used for processing the message according to the message type information of the message.
Optionally, the processing module is specifically configured to obtain original user access information from a database, where the database is used to store the user access information; if the message type information indicates that the message is an offline message or a continuation message, searching whether a service session corresponding to the message is included in the original user access information; and if the original user access information comprises the service session corresponding to the message, performing offline or renewal on the account corresponding to the message.
Optionally, the apparatus further comprises:
a first sending module, configured to send a query instruction to the database if the original user access information does not include the service session corresponding to the packet, where the query instruction is used to query the service session corresponding to the packet;
the second receiving module is used for receiving the service session corresponding to the message fed back by the database according to the query instruction;
and the execution module is used for carrying out offline or renewal on the account corresponding to the message according to the service session corresponding to the message.
Optionally, the processing module is specifically configured to authorize an account corresponding to the message if the message type information indicates that the message is an online message.
Optionally, the apparatus further comprises:
the acquisition module is used for acquiring user access information corresponding to the message;
and the second sending module is used for sending the user access information corresponding to the message to the forwarding plane.
Optionally, the apparatus further comprises:
and the third sending module is used for sending the local user access information to be synchronized to the database if the preset timing period is met or the backup of the original user access information from the database is finished.
In a fourth aspect, an embodiment of the present application further provides a service resuming device, which is applied to a controller of a server in which a VBRAS is located in a virtual broadband remote access server, where the VBRAS includes: the VBRAS server comprises a forwarding plane, a main control plane and a standby control plane, wherein the standby control plane and the main control plane are located in different virtual machines in the server where the VBRAS is located, and the VBRAS server comprises the following components:
a creating module, configured to create the standby control plane after detecting that both link connections between the primary control plane and the forwarding plane have failed;
a sending module, configured to send configuration information and a tunnel construction instruction to the standby control plane, where the configuration information includes configuration data of the main control plane, and the tunnel construction instruction is used to instruct the standby control plane to establish a connection tunnel with the forwarding plane.
In a fifth aspect, an embodiment of the present application further provides a service recovery system, where the service recovery system includes: a server comprising a controller and a virtual broadband remote access server, VBRAS, the VBRAS comprising: the server comprises a main control plane, a standby control plane and a forwarding plane, wherein the standby control plane and the main control plane are in different virtual machines in the server;
the controller is configured to create the standby control plane and send configuration information and a tunnel construction instruction to the standby control plane after detecting that both link connections between the main control plane and the forwarding plane have a failure, where the configuration information includes configuration data of the main control plane, and the tunnel construction instruction is used to instruct the standby control plane to establish a connection tunnel with the forwarding plane;
the standby control plane is used for configuring the standby control plane according to the configuration information and establishing a connection tunnel between the standby control plane and the forwarding plane according to a tunnel construction instruction sent by the controller and the configuration data; and receiving the message sent by the forwarding plane through the connection tunnel, and processing the message according to the message type information of the message.
In a sixth aspect, an embodiment of the present application further provides a network device, including: a processor, a storage medium and a bus, the storage medium storing machine-readable instructions executable by the processor, the processor and the storage medium communicating via the bus when the network device is running, the processor executing the machine-readable instructions to perform the steps of the traffic restoration method according to any one of the first or second aspects.
In a seventh aspect, this application embodiment further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the method performs the steps of the service restoration method according to any one of the first aspect and the second aspect.
The beneficial effect of this application is:
the method comprises the steps of configuring a standby control plane according to configuration information which is sent by a controller and comprises main control plane configuration data, establishing a connection tunnel between the standby control plane and a forwarding plane according to a tunnel construction instruction and the configuration data which are sent by the controller, receiving a message which is sent by the forwarding plane through the connection tunnel and comprises message type information, and finally processing the message according to the message type information of the message. The established standby control plane is configured according to configuration information including configuration data and a tunnel construction instruction sent by a controller, and a connection tunnel between the standby control plane and a forwarding plane is established, so that a message sent by the forwarding plane is received through the connection tunnel, and the message is processed according to message type information of the message, thereby realizing the recovery of the service of the main control plane, avoiding the problem that the service cannot be recovered when the link connection between the main control plane and the forwarding plane fails, and improving the flexibility and reliability of the recovered service.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a service recovery system provided in the present application;
fig. 2 is a schematic flowchart of a service recovery method according to an embodiment of the present application;
fig. 3 is a schematic flowchart of a service recovery method according to another embodiment of the present application;
fig. 4 is a schematic flowchart of a service recovery method according to another embodiment of the present application;
fig. 5 is a schematic flowchart of a service recovery method according to an embodiment of the present application;
fig. 6 is a schematic diagram of a service recovery apparatus according to an embodiment of the present application;
fig. 7 is a schematic diagram of a service recovery apparatus according to another embodiment of the present application;
fig. 8 is a schematic diagram of a service recovery apparatus according to another embodiment of the present application;
fig. 9 is a schematic diagram of a service recovery apparatus according to another embodiment of the present application;
fig. 10 is a schematic diagram of a service recovery apparatus according to another embodiment of the present application;
fig. 11 is a schematic structural diagram of a network device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments.
Fig. 1 is a schematic structural diagram of a service recovery system provided in the present application; as shown in fig. 1, the service recovery system may include: a server, the server may include: a controller 110 and a VBRAS (virtual broadband Remote Access Server) 120, where the VBRAS120 may include: a main control plane 1201, a standby control plane 1202 and a forwarding plane 1203.
The standby control plane 1202 and the main control plane 1201 are in different virtual machines in the server where the VBRAS is located. It should be noted that, a server as a physical device may start a plurality of virtual machines, and each virtual machine starts a CP. The standby control plane 1202 may be enabled and configured when both connections between the forwarding plane 1203 and the main control plane 1201 fail.
Optionally, the main control surface 1201 and the forwarding surface 1203 establish a VXLAN (Virtual eXtensible Local Area Network) tunnel, and may communicate through a preset protocol, for example, communicate through the VXLAN tunnel by using an Openflow protocol.
The service module of the main control plane 1201 can perform data communication with a database, and the database can store user access information, which is extracted from an online message triggered by a user. The database may be a storage space preset in the server, may also be a storage space of another server in the service recovery system, and may also be another storage space for storing data, which is not limited in this embodiment of the present application.
In addition, the controller 110 may transmit configuration information to the forwarding plane 1203 and the control planes (the main control plane 1201 and the standby control plane 1202) according to the Netconf protocol, thereby implementing configuration of the forwarding plane 1203 and the control planes.
Wherein the configuration information may include: VNI (VXLAN Network Identifier), VXLAN tunnel capability information, and gateway information corresponding to the VXLAN tunnel.
Before processing the packet by the service recovery system, the main CP1201 may be created, and a connection tunnel between the main CP1201 and the UP1203 is established, so that the main CP1201 processes the packet forwarded by the UP 1203.
Alternatively, the controller 110 may create the main CP1201 first, and send the configuration information and the tunnel construction instruction to the main CP1201, and then the main CP1201 may receive the configuration information and the tunnel construction instruction, configure the configuration data of the main CP1201 according to the configuration data in the configuration information, and establish the connection tunnel between the main CP1201 and the UP1203 according to the received tunnel construction instruction. The main CP1201 may also send update information to the UP1203, so that the UP1203 establishes a correspondence between the tunnel identifier corresponding to the main CP1201 and the VXLAN tunnel according to the update information.
Correspondingly, after the UP1203 receives a message triggered by a user from the access port, matching can be performed according to the five-tuple of the message, so that a VXLAN tunnel corresponding to the main CP1201 which needs to receive the message is found and obtained in each established corresponding relationship according to a matching result, and then the message is sent to the main CP1201 through the VXLAN tunnel obtained through the finding.
Optionally, after receiving the packet sent by the UP1203, the main CP1201 may execute an operation of authorizing online charging on an account corresponding to the packet according to the packet, and may also send user access information corresponding to the packet to the UP1203 through Openflow, so that the UP1203 may instruct a user traffic forwarding service according to the user access information.
The main CP1201 may also send user access information to the database through the service module, so that after the main CP1201 fails, the standby CP1202 created by the controller 110 may recover the service according to the user access information in the database.
The user access information may be extracted from a packet sent by the UP1203 through the connection tunnel and received by the main CP1201, where the user access information may include an authentication IP (Internet Protocol) address of a user or a user name information address, and the user name information address is used to indicate a storage path for storing user name information.
In order to timely detect whether a link connection between the UP1203 and each main CP1201 is failed, after the UP1203 establishes a VXLAN tunnel with the main CP1201, an NQA (Network Quality Analyzer) detection channel between the UP1203 and the main CP1201 may be established to detect whether the link connection between the UP1203 and the main CP1201 is normal.
The controller 110 may receive link failure monitoring information sent by the UP1203 or the main CP1201, and if it is detected that a link connection between each of the main CP1201 and the UP1203 fails, the controller 110 may create the standby CP1202, so as to recover the service of the main CP1201 through the standby CP 1202.
The controller 110 may send a tunnel construction instruction and configuration information including configuration data to the standby CP1202, where the configuration data is consistent with the configuration data of the main CP1201, and then the standby CP1202 may receive the tunnel construction instruction and the configuration information, configure the configuration data of the standby CP1202 according to the configuration data of the main CP1201 carried in the configuration information, establish a connection tunnel between the standby CP1202 and the UP1203 according to the tunnel construction instruction and the configuration information, and acquire user access information corresponding to the main CP1201 from a database according to a synchronization instruction sent by the controller 110.
In addition, the standby CP1202 may also send update information to the UP1203, so that the UP1203 updates the correspondence between the tunnel identifier corresponding to the main CP1201 and the VXLAN tunnel in the recorded correspondence, to obtain the correspondence between the tunnel identifier corresponding to the standby CP1202 and the VXLAN tunnel.
Correspondingly, after receiving a message triggered by a user, the UP1203 may send the message to the standby CP1202 through the established VXLAN tunnel, and the standby CP1202 may perform an authorization, offline or charging operation on an account corresponding to the message according to the type of the message, thereby implementing service recovery of the main CP 1201.
In practical applications, the controller 110 may be a MANO (management and organization) controller 110, and the CP is a BRAS device activated by each virtual machine in the VBRAS, which is not limited in this embodiment of the present invention.
Fig. 2 is a flowchart of a service restoration method according to an embodiment of the present application, which is applied to the backup CP of the VBRAS shown in fig. 1, and as shown in fig. 2, the method includes:
Wherein the configuration information may include configuration data of the master control plane. For example, the configuration information may include: VNI, VXLAN tunnel performance information, gateway information corresponding to the VXLAN tunnel, user online configuration and the like.
Because the service of the main CP needs to be recovered through the standby CP, the standby CP needs to be configured, so that the configuration data of the standby CP is consistent with the configuration data of the main CP. Therefore, the standby CP can configure the configuration data of the standby CP according to the configuration data of the main CP in the configuration information.
Optionally, the CP in another virtual machine may be used as a standby CP, and then the service of the main CP is recovered through the standby CP.
Moreover, the standby control plane may also receive the CP decapsulated configuration information and the like sent by the UP through the uplink message in the process of processing the configuration information sent by the controller, so as to further configure the standby CP through the CP decapsulated configuration information sent by the UP.
In addition, it should be noted that the configuration information for configuring the configuration data of the standby CP may be sent by the controller to the standby CP.
Optionally, the standby CP may receive the configuration information sent by the controller, compare each configuration data in the configuration information with the current configuration data of the standby CP, and determine whether a parameter value of each configuration data in the configuration information is consistent with a parameter value of the current configuration data of the standby CP. If the configuration data is consistent with the configuration data, the configuration data with consistent parameter values may not be configured, but if the parameter values of a certain configuration data are inconsistent with each other, the parameter values of the current configuration data of the standby CP may be replaced by the parameter values of the corresponding configuration data in the configuration information, so as to implement configuration of the configuration data of the standby CP.
The tunnel construction instruction is used for instructing the standby CP to establish a connection tunnel between the standby CP and the UP, and the connection tunnel may be a VXLAN tunnel.
Optionally, after the standby control plane is configured according to the configuration data of the main control plane, the standby control plane may have the same parameters, functions, and the like as the original main control plane, and then may establish a connection tunnel with the UP similarly to the original main control plane through interaction with the UP. For example, after receiving the tunnel construction command and the configuration data, the backup CP may analyze and extract the configuration data according to the tunnel construction command to obtain the address information of the UP in the configuration data, and establish a connection tunnel between the backup CP and the UP according to the address information of the UP.
When the link connection between the main control plane and the forwarding plane loaded by the VBRAS fails, a connection tunnel between the standby CP and the UP needs to be established, so that a packet sent by the UP is received through the connection tunnel between the CP and the UP, the standby CP processes the packet, and the service of the main CP is recovered.
It should be noted that, after the connection tunnel between the standby CP and the UP is established, the standby CP may send update information to the UP, where the update information is used to indicate the forwarding plane to update the corresponding relationship between the tunnel identifier and the connection tunnel.
Because the correspondence between the tunnel identifier and the connection tunnel recorded in the UP still indicates that the message is sent to the failed main CP, the standby CP may send update information to the UP, so that the UP may update the recorded correspondence, so that in the subsequent steps, the UP may send the message to the standby CP through the connection tunnel corresponding to the standby CP according to the updated correspondence.
For example, if Tunnel 1 is a connection Tunnel between the failed main CP and UP, Tunnel 3 is a connection Tunnel between the backup CP and UP, and UP records that the UP records a correspondence relationship between VXLAN 1 and Tunnel 1 before receiving the update information transmitted by the backup CP, the correspondence relationship may be updated to that VXLAN 1 corresponds to Tunnel 3 after receiving the update information.
After establishing the connection tunnel with the UP, the UP may send a message to the standby CP, so that the standby CP may process the message, thereby recovering the service. The message may be a protocol message.
The message type information may indicate that the message is an online message, an offline message, or a renewal message, and the application is not particularly limited.
It should be noted that, in the process of forwarding the packet by UP, UP may match the characteristics of the packet through the packet quintuple, so as to search from the pre-recorded correspondence between the tunnel identifier and the connection tunnel according to the matching result, determine the standby CP that needs to receive the packet, and send the packet to the standby CP through the connection tunnel between UP and the standby CP.
And step 204, processing the message according to the message type information of the message.
After receiving the UP forwarded message, the standby CP can perform corresponding processing on the message according to the message type information of the message, thereby realizing the recovery of the service of the main CP. For example, an online operation, an offline operation, or a continuation operation is performed on the account corresponding to the message.
Optionally, the standby CP may determine the type of the packet indicated by the packet type information according to the packet type information corresponding to the specified field in the packet, so as to determine the service requested by the packet according to the type of the packet.
For example, if the message triggered by the user is a protocol message and the message type information indicates that the type of the message is an online message, the account corresponding to the message may be authorized according to a field corresponding to the account information in the message; if the message type information indicates that the type of the message is an offline message or a renewal message, the standby CP can search the service session corresponding to the message from the original user access information, so as to perform offline or renewal processing on the account corresponding to the message according to the searched service session.
The original user access information is obtained from a database according to a synchronization instruction sent by the controller, the original user access information may include an authentication IP address or a user name information address of the user, and the database is used for storing the user access information.
To sum up, in the service recovery method provided in this embodiment of the present application, the standby control plane is configured according to the configuration information including the configuration data of the main control plane sent by the controller, and the connection tunnel between the standby control plane and the forwarding plane is established according to the tunnel construction instruction and the configuration data sent by the controller, and then the message including the message type information sent by the forwarding plane through the connection tunnel is received, and finally the message is processed according to the message type information of the message. The established standby control plane is configured according to configuration information including configuration data and a tunnel construction instruction sent by a controller, and a connection tunnel between the standby control plane and a forwarding plane is established, so that a message sent by the forwarding plane is received through the connection tunnel, and the message is processed according to message type information of the message, thereby realizing the recovery of the service of the main control plane, avoiding the problem that the service cannot be recovered when the link connection between the main control plane and the forwarding plane fails, and improving the flexibility and reliability of the recovered service.
Fig. 3 is a schematic flowchart of a service recovery method according to another embodiment of the present application, which is applied to a controller of a server shown in fig. 1, and as shown in fig. 3, the method includes:
After the link connections between the main control plane and the forwarding plane all fail, in order to recover the service of processing the packet sent by the forwarding plane, a standby control plane may be created, so that the standby control plane may receive the packet sent by the forwarding plane and process the packet sent by the forwarding plane.
It should be noted that, in order to avoid that the main control plane cannot process the packet sent by the forwarding plane due to the failure of the link connection between the main control plane and the forwarding plane, the link connection between the main control plane and the forwarding plane may be monitored.
If it is detected that the link connection between each main control plane and the forwarding plane in the plurality of main control planes has a fault, the standby control plane may be established. Optionally, one of the other control planes than the primary control plane is enabled as a standby control plane.
In addition, in practical application, the controller may receive link failure monitoring information sent by the main CP or the UP in an NQA linkage manner, and create the backup CP when detecting that the link connection between each main CP and the UP has a failure.
Because the service of the main control plane needs to be recovered through the standby control plane, the standby control plane can be configured according to the configuration data of the main control plane, so that the configured standby control plane can process the message sent by the forwarding plane, and the recovery of the service of the main control plane is realized.
After the controller creates the standby control plane, the controller may generate configuration information according to the configuration data of the main control plane, and send the configuration information and a tunnel construction instruction to the standby control plane, so that the standby control plane may configure the configuration data of the standby control plane according to the configuration data of the main control plane included in the configuration information, and establish a connection tunnel with the forwarding plane according to the tunnel construction instruction.
Corresponding to step 301, in step 301, the controller may detect the link connection between the main CP and the UP in an NQA-linkage manner, and after the backup control plane establishes the connection tunnel with the forwarding plane in step 302, an NQA detection channel between the backup CP and the UP may also be established, so that the controller may monitor whether the link connection between the backup CP and the UP fails in real time.
To sum up, in the service recovery method provided in this embodiment of the present application, after detecting that the link connection between the main control plane and the forwarding plane is all failed, the standby control plane is created, and the configuration information and the tunnel construction instruction are sent to the standby control plane, so that the standby control plane configures the configuration data of the standby control plane according to the configuration information, and establishes the connection tunnel with the forwarding plane according to the tunnel construction instruction, and thus a packet sent by the forwarding plane can be received through the connection tunnel, and is processed, thereby implementing recovery of the service of the main control plane.
Fig. 4 is a schematic flow chart of a service recovery method according to another embodiment of the present application, and as shown in fig. 4, the method includes:
The configuration information may include configuration data of the primary control plane, and the tunnel construction instruction is used to instruct the standby control plane to establish a connection tunnel with the forwarding plane.
And step 403, the standby control plane configures the standby control plane according to the configuration information sent by the controller.
And step 404, the standby control plane establishes a connection tunnel with the forwarding plane according to the tunnel construction instruction and the configuration data sent by the controller.
Wherein the database is used for storing user access information.
Because the service of the main control plane needs to be recovered, the original user access information backed up in the database by the main control plane can be obtained, so that the message sent by the forwarding plane can be processed according to the original user access information in the subsequent steps.
Specifically, after the controller creates the standby control plane, the controller may send a synchronization instruction to the standby control plane, where the synchronization instruction is used to instruct the standby control plane to obtain original user access information corresponding to the main control plane from the database.
Correspondingly, the standby control plane may receive the synchronization instruction, and search and acquire the original user access information matched with the identification information of the main control plane from the database according to the identification information of the main control plane carried by the synchronization instruction, that is, acquire the original user access information corresponding to the main control plane from the database.
It should be noted that, because the standby control plane needs to last for a period of time to acquire the original user access information, in the process of acquiring the original user access information, the standby control plane may receive the packet sent by the forwarding plane, that is, execute step 406.
The standby control plane may first execute step 405 and then execute step 406, may also execute step 406 and then execute step 405, and may also execute step 406 in the process of executing step 405, where the sequence of step 405 and step 406 is not limited in this embodiment of the application.
And step 406, the standby control plane receives a message sent by the forwarding plane through the connection tunnel, wherein the message includes message type information.
If the user triggers the service request, the forwarding plane can send a message to the standby control plane according to the service request triggered by the user, and the standby control plane can receive the message sent by the forwarding plane and determine the type of the message according to the message type information carried by the message, so as to determine the service requested by the message, so that different steps can be executed according to different message types, and the message is processed in different modes.
For example, in the process of determining the type of the message, the backup CP may extract and analyze a field corresponding to the message type information in the message, thereby determining the type of the message and further determining the service requested by the message. If the type of the message is an online message, the service requested by the message is a request for triggering online; if the type of the message is an offline message, the service requested by the message is a request triggering offline; if the type of the message is a renewal message, the service requested by the message is a request trigger renewal.
When the type of the message is an offline message or a renewal message, step 407 may be executed to perform operations such as offline or renewal on the account corresponding to the message; if the message type of the message is an online message, step 412 may be executed to perform operations such as authorization on an account corresponding to the message.
Step 407, if the message type information indicates that the message is an offline message or a renewal message, the standby control plane searches whether the service session corresponding to the message is included in the original user access information.
The original user access information is obtained from a database according to a synchronization instruction sent by the controller.
If the type of the message is an offline message or a continuation message, whether the service session corresponding to the message is included or not can be searched from the original user access information, so that the message can be processed according to the searched service session.
In the process of acquiring the original user access information, the standby CP may already acquire the service session corresponding to the message, or may not acquire the service session corresponding to the message.
Optionally, step 408 or step 409 may be respectively executed according to a search result of whether the search includes the service session corresponding to the packet.
And step 408, if the original user access information includes the service session corresponding to the message, the standby control plane performs offline or renew on the account corresponding to the message.
If the original user access information includes a service session corresponding to the message, the standby CP may perform offline or continuous operation on the account corresponding to the message according to the corresponding service session.
If the message type of the message is an offline message or a renewal message, the backup CP may extract account information of an account corresponding to the message, so as to perform offline or renewal operation on the account, thereby implementing recovery of the main CP service.
The account information may include identification information and key information of the account, for example, the identification information may be a login account number of the user, and the key information may be a login password of the user.
Step 409, if the original user access information does not include the service session corresponding to the message, the standby control plane sends a query instruction to the database.
The query instruction is used for querying the service session corresponding to the message.
If the original user access information does not include the service session corresponding to the message, the standby CP may generate a query instruction and send the query instruction to the database, so that the database feeds back the service session corresponding to the message to the standby control plane according to the query instruction.
The query instruction may include an account identifier of an account corresponding to the message.
And step 410, the standby control plane receives the service session corresponding to the message fed back by the database according to the query instruction.
After receiving the query instruction sent by the standby control plane, the database can search and preferentially recover the original user access information corresponding to the account identifier according to the account identifier in the query instruction, so as to recover the service session corresponding to the message. That is, according to the account identifier, the service session corresponding to the account identifier is fed back to the standby control plane.
Accordingly, the backup control plane may receive a service session corresponding to the account identifier and fed back by the database.
Correspondingly, after the service session corresponding to the packet is recovered, the backup CP may perform operations similar to step 408, and complete the offline or renewal of the account corresponding to the packet, which is not described herein again.
If the type of the message is an online message, the backup CP can extract account information of an account corresponding to the message, so that the account is authenticated, authorized and online charged, and the recovery of the main CP service is realized.
The backup CP can extract the account information in the message, so that the corresponding account is authenticated, authorized, online and charged according to the account information, and the account corresponding to the message is authorized.
Since the authorization operation performed on the online packet belongs to a newly added service, the standby control plane may acquire the user access information of the packet, so that the user access information may be backed up to the forwarding plane and/or the database in the subsequent steps.
Optionally, the standby control plane may extract a relevant field of the received packet to obtain user access information corresponding to the packet.
And step 414, the standby control plane sends the user access information corresponding to the message to the forwarding plane.
After the on-line authorization processing is performed on the message, the standby CP needs to respectively send user access information corresponding to the message to the UP and the database, so that the UP guides the user traffic forwarding service according to the user access information, and the database backs UP the user access information.
Because the backup CP needs to last for a period of time to acquire the original user access information from the database, if the backup CP does not acquire the original user access information from the database, the backup CP sends the user access information corresponding to the message to the database at this time, which may cause confusion of the database information, and the backup CP cannot normally acquire the original user access information.
Optionally, after performing an authorized online operation on the packet, the standby CP may first send user access information corresponding to the packet to the UP.
It should be noted that, if the preset timing period is met or the original user access information is completely backed up from the database, the local user access information to be synchronized is sent to the database.
And when the original user access data is acquired from the database by the standby CP, or the time length of the original user access data acquired from the database by the standby CP exceeds a preset time length, namely a preset timing period is met, the user access information corresponding to the message can be sent to the database.
Specifically, if the backup CP can generate data acquisition completion information after the backup CP finishes acquiring the original user access data, the backup CP may send the local user access information to be synchronized by the controller to the database according to the data acquisition completion information, where the local user access information to be synchronized may include user access information corresponding to the packet.
Or, the backup CP may start a timer function when the backup CP starts to acquire the original user access information, or after the backup CP is created, and when the countdown of the timer is finished, it indicates that the time length for acquiring the original user access information exceeds the preset time length, the backup CP may send the user access information to be synchronized locally by the controller to the database.
For example, the preset time length may be 2 minutes, or may also be other time lengths required for recovering the user access information in the order of mega (M), which is not limited in the embodiment of the present application.
To sum up, in the service recovery method provided in this embodiment of the present application, the standby control plane is configured according to the configuration information including the configuration data of the main control plane sent by the controller, and the connection tunnel between the standby control plane and the forwarding plane is established according to the tunnel construction instruction and the configuration data sent by the controller, and then the message including the message type information sent by the forwarding plane through the connection tunnel is received, and finally the message is processed according to the message type information of the message. The established standby control plane is configured according to configuration information including configuration data and a tunnel construction instruction sent by a controller, and a connection tunnel between the standby control plane and a forwarding plane is established, so that a message sent by the forwarding plane is received through the connection tunnel, and the message is processed according to message type information of the message, thereby realizing the recovery of the service of the main control plane, avoiding the problem that the service cannot be recovered when the link connection between the main control plane and the forwarding plane fails, and improving the flexibility and reliability of the recovered service.
Fig. 5 is a schematic flow chart of a service recovery method according to an embodiment of the present application, and as shown in fig. 5, the service recovery system includes: a server, the server comprising a controller and a VBRAS, the VBRAS comprising: the server comprises a main control plane, a standby control plane and a forwarding plane, wherein the standby control plane and the main control plane are in different virtual machines in the server.
Specifically, in practical applications, the flow of the service recovery method executed by the service recovery system is as follows:
And 502, the standby control plane is used for configuring the standby control plane according to the configuration information sent by the controller, and establishing a connection tunnel between the standby control plane and the forwarding plane according to the tunnel construction instruction and the configuration data sent by the controller.
Fig. 6 is a schematic diagram of a service recovering apparatus according to an embodiment of the present application, which is applied to the backup CP of the VBRAS shown in fig. 1, and as shown in fig. 6, the apparatus specifically includes:
a configuration module 601, configured to configure a standby control plane according to configuration information sent by a controller, where the configuration information includes configuration data of the main control plane;
a tunnel establishing module 602, configured to establish a connection tunnel with the forwarding plane according to the tunnel establishing instruction and the configuration data sent by the controller;
a first receiving module 603, configured to receive a message sent by the forwarding plane through the connection tunnel, where the message includes message type information;
the processing module 604 is configured to process the packet according to the packet type information of the packet.
Optionally, the processing module 604 is specifically configured to obtain original user access information from a database, where the database is used to store the user access information; if the message type information indicates that the message is an offline message or a continuation message, searching whether the service session corresponding to the message is included in the original user access information; and if the original user access information comprises the service session corresponding to the message, performing offline or renewal on the account corresponding to the message.
Optionally, referring to fig. 7, the apparatus further includes:
a first sending module 605, configured to send a query instruction to the database if the original user access information does not include the service session corresponding to the message, where the query instruction is used to query the service session corresponding to the message;
a second receiving module 606, configured to receive a service session corresponding to the packet, where the service session is fed back by the database according to the query instruction;
the execution module 607 is configured to perform offline or renewal on the account corresponding to the message according to the service session corresponding to the message.
Optionally, the processing module 604 is specifically configured to authorize an account corresponding to the message if the message type information indicates that the message is an online message.
Optionally, referring to fig. 8, the apparatus further includes:
an obtaining module 608, configured to obtain user access information corresponding to the packet;
a second sending module 609, configured to send the user access information corresponding to the packet to the forwarding plane.
Optionally, referring to fig. 9, the apparatus further includes:
a third sending module 610, configured to send local user access information to be synchronized to the database if a preset timing period is met or the backup of the original user access information from the database is completed.
To sum up, the service restoration apparatus provided in this embodiment configures the standby control plane according to the configuration information including the configuration data of the main control plane sent by the controller, establishes the connection tunnel with the forwarding plane according to the tunnel establishment instruction and the configuration data sent by the controller, receives the packet including the packet type information sent by the forwarding plane through the connection tunnel, and processes the packet according to the packet type information of the packet. The established standby control plane is configured according to configuration information including configuration data and a tunnel construction instruction sent by a controller, and a connection tunnel between the standby control plane and a forwarding plane is established, so that a message sent by the forwarding plane is received through the connection tunnel, and the message is processed according to message type information of the message, thereby realizing the recovery of the service of the main control plane, avoiding the problem that the service cannot be recovered when the link connection between the main control plane and the forwarding plane fails, and improving the flexibility and reliability of the recovered service.
Fig. 10 is a schematic diagram of a service restoration apparatus according to another embodiment of the present application, which is applied to the controller shown in fig. 1, and as shown in fig. 10, the apparatus specifically includes:
a creating module 1001, configured to create the standby control plane after detecting that both link connections between the primary control plane and the forwarding plane have failed;
a sending module 1002, configured to send configuration information and a tunnel construction instruction to the standby control plane, where the configuration information includes configuration data of the main control plane, and the tunnel construction instruction is used to instruct the standby control plane to establish a connection tunnel with the forwarding plane.
To sum up, the service restoration apparatus provided in this embodiment of the present application establishes the standby control plane after detecting that the link connection between the main control plane and the forwarding plane has all failed, and sends the configuration information and the tunnel construction instruction to the standby control plane, so that the standby control plane configures the configuration data of the standby control plane according to the configuration data of the main control plane included in the configuration information, and establishes the connection tunnel with the forwarding plane according to the tunnel construction instruction, so that the packet sent by the forwarding plane can be received through the connection tunnel, and the packet is processed, thereby realizing restoration of the service of the main control plane.
The above-mentioned apparatus is used for executing the method provided by the foregoing embodiment, and the implementation principle and technical effect are similar, which are not described herein again.
These above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
Fig. 11 is a schematic structural diagram of a network device according to an embodiment of the present application, where the network device may be a computing device with a service recovery function.
The network device includes: a processor 1101, a storage medium 1102, and a bus 1103.
The storage medium 1102 stores machine-readable instructions executable by the processor 1101, when the server runs, the processor 1101 communicates with the storage medium 1102 through the bus 1103, and the processor 1101 executes the machine-readable instructions to execute the method embodiment executed by the control plane or the method embodiment executed by the controller. The specific implementation and technical effects are similar, and are not described herein again.
Optionally, the present application further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program performs the method embodiment executed by the standby control plane, or the method embodiment executed by the controller.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to perform some steps of the methods according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A service recovery method, applied to a backup control plane of a VBRAS (virtual broadband remote access server), the VBRAS further comprising: a forwarding plane and a main control plane, wherein the standby control plane and the main control plane are in different virtual machines in a server where the VBRAS is located, the server further includes a controller, and the method includes:
configuring the standby control plane according to configuration information sent by the controller, wherein the configuration information comprises configuration data of the main control plane;
establishing a connection tunnel between the forwarding plane and the controller according to the tunnel construction instruction sent by the controller and the configuration data;
receiving a message sent by the forwarding plane through the connection tunnel, wherein the message comprises message type information;
and processing the message according to the message type information of the message.
2. The method of claim 1, wherein said processing the packet according to the packet type information of the packet comprises:
acquiring original user access information from a database, wherein the database is used for storing the user access information;
if the message type information indicates that the message is an offline message or a continuation message, searching whether a service session corresponding to the message is included in the original user access information;
and if the original user access information comprises the service session corresponding to the message, performing offline or renewal on the account corresponding to the message.
3. The method of claim 2, wherein after searching for whether the service session corresponding to the packet is included in the original user access information, the method further comprises:
if the original user access information does not include the service session corresponding to the message, sending a query instruction to the database, wherein the query instruction is used for querying the service session corresponding to the message;
receiving a service session corresponding to the message fed back by the database according to the query instruction;
and according to the service session corresponding to the message, carrying out offline or renewal on the account corresponding to the message.
4. The method of claim 1, wherein said processing the packet according to the packet type information of the packet comprises:
and if the message type information indicates that the message is an online message, authorizing an account corresponding to the message.
5. The method of claim 4, wherein after authorizing the account corresponding to the message, the method further comprises:
acquiring user access information corresponding to the message;
and sending user access information corresponding to the message to the forwarding plane.
6. The method of claim 3 or 5, further comprising:
if the time length of the original user access data acquired from the database exceeds the preset time length, sending local user access information to be synchronized to the database;
or, if the original user access information is acquired from the database, sending local user access information to be synchronized to the database, wherein the local user access information to be synchronized comprises user access information corresponding to the message.
7. A service recovery method is applied to a controller of a server where a Virtual Broadband Remote Access Server (VBRAS) is located, and the VBRAS comprises: a forwarding plane, a main control plane and a standby control plane, wherein the standby control plane and the main control plane are in different virtual machines in a server where the VBRAS is located, and the method includes:
after detecting that the link connection between the main control plane and the forwarding plane is failed, establishing the standby control plane;
and sending configuration information and a tunnel construction instruction to the standby control plane, wherein the configuration information comprises configuration data of the main control plane, and the tunnel construction instruction is used for indicating the standby control plane to establish a connection tunnel with the forwarding plane.
8. A service recovery system, characterized in that said service recovery system comprises: a server comprising a controller and a virtual broadband remote access server, VBRAS, the VBRAS comprising: the server comprises a main control plane, a standby control plane and a forwarding plane, wherein the standby control plane and the main control plane are in different virtual machines in the server;
the controller is configured to create the standby control plane and send configuration information and a tunnel construction instruction to the standby control plane after detecting that both link connections between the main control plane and the forwarding plane have a failure, where the configuration information includes configuration data of the main control plane, and the tunnel construction instruction is used to instruct the standby control plane to establish a connection tunnel with the forwarding plane;
the standby control plane is used for configuring the standby control plane according to the configuration information and establishing a connection tunnel between the standby control plane and the forwarding plane according to a tunnel construction instruction sent by the controller and the configuration data; and receiving the message sent by the forwarding plane through the connection tunnel, and processing the message according to the message type information of the message.
9. A network device, comprising: a processor, a storage medium and a bus, the storage medium storing machine-readable instructions executable by the processor, the processor and the storage medium communicating over the bus when the network device is operating, the processor executing the machine-readable instructions to perform the steps of the traffic restoration method according to any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, performs the steps of the service restoration method according to any one of claims 1 to 7.
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| CN112953735B (en) * | 2019-11-26 | 2023-05-02 | 中国电信股份有限公司 | Network service device and network service method |
| CN112511326B (en) * | 2020-03-16 | 2024-02-02 | 中兴通讯股份有限公司 | Switching method, device, equipment and storage medium |
| CN112804077B (en) * | 2020-06-05 | 2022-07-15 | 中兴通讯股份有限公司 | Data protection method, controller, control plane device and storage medium |
| CN112003731B (en) * | 2020-07-27 | 2022-07-12 | 新华三技术有限公司 | Configuration method and device |
| CN112367252B (en) * | 2020-09-25 | 2022-05-27 | 新华三技术有限公司合肥分公司 | Method and device for realizing disaster recovery backup |
| CN113794641B (en) * | 2021-08-20 | 2022-10-21 | 新华三信息安全技术有限公司 | Message processing method and device |
| CN113691435B (en) * | 2021-08-23 | 2023-04-25 | 新华三信息安全技术有限公司 | Message processing method, system and device |
| CN115314336A (en) * | 2022-08-10 | 2022-11-08 | 中国电信股份有限公司 | User online method of vBRAS and related equipment |
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