WO2016112656A1

WO2016112656A1 - Service processing method and device

Info

Publication number: WO2016112656A1
Application number: PCT/CN2015/083106
Authority: WO
Inventors: 吕矿生; 岳雪梅
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-01-12
Filing date: 2015-07-01
Publication date: 2016-07-21
Also published as: CN105847138A

Abstract

Disclosed are a service processing method and device, the method comprising: configuring one or more associated interfaces for an access interface, the access interface and the associated interfaces being three-layer interfaces of the same type; and when the access interface is disconnected from a lower-layer device, switching a router to the associated interfaces to process service. Via the configuration of the associated interface, the present invention addresses the problem in which an interface of a BRAS cannot be backed up in the related techniques, thus realizing backup and switching of a BRAS router.

Description

Business processing method and device

Technical field

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

Background technique

The Broadband Remote Access Server (BRAS) mainly completes access control for users, and completes authentication with the authentication system, the charging system, the customer management system, and the service policy control system to implement terminal user access authentication. Billing and management functions.

In some network topologies of a typical BRAS access scenario, there are scenarios in which BRAS is deployed on a Layer 3 network. That is, a Layer 3 network device (such as a router or a Layer 3 switch) is directly connected under the BRAS.

Generally, the three-layer user of the terminal accesses the BRAS through a single user-side Layer 3 interface. For each terminal user, the BRAS has only one specific interface for access, and the access interface is determined. Or a group of interfaces is bundled into one interface, and the external interface is a logical interface. This unique interface has a unique network address.

Therefore, the Layer 3 access in the existing solution can only have one directly connected next hop address. That is to say, in this case, it is difficult to hang multiple Layer 3 network devices.

In view of the problem that the interface of the BRAS cannot be backed up in the related art, an effective solution has not been proposed yet.

Summary of the invention

The embodiment of the invention provides a service processing method and device, so as to at least solve the problem that the interface of the BRAS cannot be backed up in the related art.

According to an aspect of the embodiments of the present invention, a service processing method is provided, including: configuring one or more associated interfaces for an access interface, where the access interface and the associated interface are the same type of Layer 3 interface And if the access interface is disconnected from the lower layer device, the route is switched to the associated interface for service processing.

Further, after the one or more associated interfaces are configured for the access interface, the method further includes: when the physical interface of the access interface and the associated interface are different, respectively, saving the access interface and the The information about the associated interface and the terminal information configured by the access interface.

Further, the route is switched to the associated interface for service processing in one of the following ways: a virtual router redundancy protocol (Virtual Router Redundancy Protocol, VRRP for short), and a bidirectional forwarding detection (BFD).

According to another aspect of the present invention, a service processing method is provided, including: acquiring a configuration table carrying configuration information, where the configuration information includes information of an access interface, preset settings, and the access The information of the associated interface associated with the interface, and the configuration information associated with the associated interface, wherein the access interface and the associated interface are the same type of Layer 3 interface; In the case of disconnection from the lower layer device, the route is switched to the associated interface for service processing according to the configuration information.

Further, the information of the access interface includes: a MAC address of the access interface, a network address of the access interface, and routing information of the access interface; and the information of the associated interface includes: the association The MAC address of the interface, the network address of the associated interface, and the routing information of the associated interface.

According to another aspect of the present invention, a service processing apparatus is provided, including: a configuration module, configured to configure one or more associated interfaces for an access interface, where the access interface and the associated interface are The third type of interface of the same type; the first service processing module is configured to switch the route to the associated interface for service processing if the access interface is disconnected from the lower layer device.

Further, the device further includes: a saving module, configured to save information of the access interface and the associated interface separately when the physical interface of the access interface and the associated interface are different, And terminal information configured by the access interface.

Further, the device further includes: a switching module, configured to switch the route to the associated interface to perform service processing in one of the following manners: a virtual routing redundancy protocol VRRP, and a bidirectional forwarding detection BFD.

According to another aspect of the present invention, a service processing apparatus is provided, including: an obtaining module, configured to acquire a configuration table carrying configuration information, where the configuration information includes information of an access interface, and a preset The information of the associated interface associated with the access interface, and the configuration information associated with the associated interface, wherein the access interface and the associated interface are the same type of Layer 3 interface; The second service processing module is configured to switch the route to the associated interface for service processing according to the configuration information when the access interface is disconnected from the lower layer device.

According to the embodiment of the present invention, one or more associated interfaces are configured for the access interface, where the access interface and the associated interface are the same type of Layer 3 interface; the access interface is disconnected from the lower device. In the case of the connection, the route is switched to the associated interface for service processing, and the associated interface is configured to solve the problem that the BRAS interface cannot be backed up in the related art, and the BRAS route backup and handover are implemented.

DRAWINGS

The drawings are intended to provide a further understanding of the embodiments of the present invention, and constitute a part of the present application. The embodiments of the present invention and the description thereof are used to explain the embodiments of the present invention, and do not constitute an inappropriate embodiment of the present invention. limited. In the drawing:

1 is a flowchart 1 of a service processing method according to an embodiment of the present invention;

2 is a second flowchart of a service processing method according to an embodiment of the present invention;

3 is a block diagram 1 of a service processing apparatus according to an embodiment of the present invention;

4 is a block diagram 1 of a service processing apparatus in accordance with a preferred embodiment of the present invention;

Figure 5 is a block diagram 2 of a service processing apparatus in accordance with a preferred embodiment of the present invention;

6 is a block diagram 2 of a service processing apparatus according to an embodiment of the present invention;

7 is a network diagram of a Layer 3 device of a BRAS according to an embodiment of the present invention;

FIG. 8 is a flowchart of processing performed by a user after being configured to be sent to a forwarding table according to an embodiment of the present invention;

FIG. 9 is a flowchart of processing for triggering online traffic of a user according to an embodiment of the present invention; FIG.

FIG. 10 is a flowchart of processing of user traffic forwarding according to an embodiment of the present invention; FIG.

FIG. 11 is a flowchart of traffic forwarding processing of a network side to a layer 3 device according to an embodiment of the present invention.

detailed description

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

A service processing method is provided in this embodiment. FIG. 1 is a flowchart 1 of a service processing method according to an embodiment of the present invention. As shown in FIG. 1, the process includes the following steps:

Step S102, configuring one or more associated interfaces for the access interface, where the access interface and the associated interface are the same type of Layer 3 interface;

Step S104: If the access interface is disconnected from the lower layer device, the route is switched to the associated interface for service processing.

Through the above steps, one or more associated interfaces are configured for the access interface. When the access interface is disconnected from the lower-layer device, the route is switched to the associated interface for service processing, and the associated interface is configured to solve the problem. The related art cannot backup the interface of the BRAS, and implements BRAS route backup and switching.

After the one or more associated interfaces are configured for the access interface, the information about the access interface and the associated interface is saved, and the access is saved, where the access interface and the physical interface of the associated interface are different. Terminal information configured on the interface.

The route can be switched to the associated interface for service processing in one of the following ways: virtual routing redundancy protocol VRRP, and bidirectional forwarding detection BFD.

The embodiment of the present invention further provides a service processing method, and FIG. 2 is a flowchart 2 of a service processing method according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:

Step S202: Acquire a configuration table carrying configuration information, where the configuration information includes information of an access interface, information of an associated interface associated with the access interface, and an association between the access interface and the associated interface. Configuration information, where the access interface and the associated interface are the same type of Layer 3 interface;

Step S204: If the access interface is disconnected from the lower layer device, the route is switched to the associated interface for service processing according to the configuration information.

The information about the access interface may include: a MAC address of the access interface, a network address of the access interface, and routing information of the access interface; the information of the associated interface may include: a MAC address of the associated interface, The network address of the associated interface and the routing information of the associated interface.

The embodiments of the present invention provide a service processing apparatus, which is used to implement the foregoing embodiments and preferred embodiments, and has not been described again. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

FIG. 3 is a block diagram 1 of a service processing apparatus according to an embodiment of the present invention. As shown in FIG. 3, the method includes:

The configuration module 32 is configured to configure one or more associated interfaces for the access interface, where the access interface and the associated interface are the same type of Layer 3 interface;

The first service processing module 34 is configured to switch the route to the associated interface for service processing when the access interface is disconnected from the lower layer device.

4 is a block diagram of a service processing apparatus according to a preferred embodiment of the present invention. As shown in FIG. 4, the apparatus further includes:

The saving module 42 is configured to save the information of the access interface and the associated interface and the terminal information configured by the access interface, respectively, when the physical interface of the access interface and the associated interface are different.

FIG. 5 is a block diagram 2 of a service processing apparatus according to a preferred embodiment of the present invention. As shown in FIG. 5, the apparatus further includes:

The switching module 52 is configured to switch the route to the associated interface for service processing in one of the following manners: a virtual routing redundancy protocol VRRP, and a bidirectional forwarding detection BFD.

The embodiment of the present invention further provides a service processing apparatus. FIG. 6 is a block diagram 2 of a service processing apparatus according to an embodiment of the present invention. As shown in FIG. 6, the method includes:

The obtaining module 62 is configured to obtain a configuration table that carries the configuration information, where the configuration information includes information about the access interface, information of an associated interface associated with the access interface, and the association between the access interface and the access interface. The configuration information associated with the interface, where the access interface and the associated interface are the same type of Layer 3 interface;

The second service processing module 64 is configured to switch the route to the associated interface for service processing according to the configuration information when the access interface is disconnected from the lower layer device.

It should be noted that the information about the access interface includes: a MAC address of the access interface, a network address of the access interface, and routing information of the access interface; the information of the associated interface includes: MAC address, network address of the associated interface, and routing information of the associated interface.

The embodiments of the present invention are further described below in conjunction with the optional embodiments.

In some scenarios, in order to ensure the security of the network, it is often necessary to have certain backup capabilities between devices. For example, when the BRAS device fails, it is hoped that it can be quickly switched to another route to implement routing. Backup. That is, there may be a scenario in which multiple Layer 3 devices are connected to the BRAS, that is, the terminal user connects through multiple Layer 3 network devices through the Layer 2 network and finally connects to the BRAS. The current program is not supported. To this end, the optional embodiment provides an access method for the associated interface of the Layer 3 device connected to the BRAS, which can better adapt to some network topologies, facilitate BRAS route backup and switching, and enhance the function of device backup. Includes the following:

In addition to the Layer 3 interface A of the BRAS, a Layer 3 interface B of the same type is configured, and the A interface is associated with the B interface, where the interface A is the primary interface and the interface B is the associated interface. The main interface A and the associated interface B are both BRAS Layer 3 user-side interfaces, that is, they have the function of user access, which is different from the common network-side interface. The Layer 3 interface also has a layer of information that the primary interface and its associated interfaces have their own MAC addresses, network addresses, and routing information. The Layer 3 interface may be a logical Layer 3 interface such as a Layer 3 aggregation interface that includes multiple real interfaces. The Layer 3 interface A and the Layer 3 interface B may be associated with each other.

An end user with an IP address can be configured on only one primary interface A. That is, only one Layer 3 interface can be used as the primary interface for the user. If the primary interface has been configured with the associated interface B, the user is elected. B is the associated interface of the IP user; the primary interface and the associated interface are differentiated according to the user. If the Layer 3 interfaces A and B are associated with each other, the user IP1 is configured on interface A and IP2 is configured on interface B. Then, for the terminal user IP1, interface A is the primary interface, and interface B is the associated interface. For terminal user IP2, interface B is the primary interface, and A is the associated interface.

When the user configured on the primary interface A initiates the authentication request and goes online through the interface B, the attributes and policies corresponding to the interface A in the configuration table (a piece of memory on the forwarding plane where the configuration information is saved) are obtained, and the configuration table is in the configuration table. The interface information of the associated interface B is saved in the item, and the terminal user IP1 has a small table (memory area) on the forwarding plane (the forwarding plane refers to a flow control module such as a network processor) before the user accesses, if the primary interface A The physical slot of the associated interface B is different (the memory is allocated on different physical boards). Then, there is a small table in both physical memory, and the information of interface A and interface B is saved, and the interface A is saved. User-related configuration information, ready for use as an end user IP1 access. The above method may also have the following feature: the terminal user IP1 generates a user table on the forwarding plane after the user accesses (the memory area allocated by the added user information), if the physical interface of the primary interface A and the associated interface B The bits are different (the memory is allocated on different physical boards), then there is a user table in both physical memory, and the information of interface A and interface B is saved, and the user-related configuration information of interface A is saved. Used for end-user IP1 for flow control and billing.

The terminal user can perform access request, strong push authentication, and traffic forwarding through the primary interface or the associated interface. The primary interface or the associated interface has independence, that is, traffic can be seamlessly switched between the two interfaces.

When the primary interface A is disconnected from the lower-layer device, the virtual routing redundancy protocol VRRP can be used to quickly switch the route to the associated interface B. The traffic can be seamlessly switched between the two interfaces to maintain smooth communication. When the connection is opened, the traffic will be seamlessly switched to the primary interface for traffic forwarding. The route switching mode may use other routing switching modes other than VRRP, such as BFD.

It should be noted that the foregoing only uses one interface as an example, and is not limited to a scenario in which one interface is associated, and multiple interfaces may be associated.

7 is a schematic diagram of a network of a Layer 3 device of a BRAS according to an embodiment of the present invention. As shown in FIG. 7, in a BRAS Layer 3 access network, a BRAS is connected to a plurality of Layer 3 devices, and the Layer 3 device is connected to the Layer 3 device. Each interface is directly connected to a Layer 3 network port, which has a MAC address, a network address, and routing information. These interfaces on the BRAS have the attributes of the three-layer user-side interface, and the main interface has the relevant configuration required for the online connection. The plurality of Layer 3 devices are connected to a Layer 2 device such as a switch and finally connected to the end user.

The user can initiate the access authentication process through the router 1 to the primary interface, and can also initiate the access authentication process through the router 2 to the associated interface, and can generate and save the user information on the BRAS. After the user adds the table, the traffic can be forwarded through any interface at the same time. That is, the traffic can be forwarded through the router 1 or through the router 2.

The ports connected to the switch through the Layer 3 device connected to the BRAS can perform VRRP route backup. When the connection between Router 1 and Router 2 and the BRAS is disconnected, VRRP switching can be performed quickly, and the traffic can be switched to another one. The router will not be disconnected.

FIG. 8 is a flowchart of a process of being delivered to a forwarding table after a user is configured according to an embodiment of the present invention. As shown in FIG. 8, the processing flow of the configuration table includes the following steps:

Step S802, the interface A and the interface B are respectively configured as a three-layer user-side interface, having its own MAC address, a network address, and the interface A is associated with the interface B;

Step S804, the interface A configures related ID information of the user IP1, such as the IP address of the IP1, and the like;

Step S806, the interface A configures related attribute information required for IP1 access.

Step S808, the interface information of the primary interface A and the associated interface B is saved in the IP1 configuration table of the user;

Step S810, the user entry is sent from the control plane to the forwarding plane.

FIG. 9 is a flowchart of processing a user traffic triggering on-line according to an embodiment of the present invention. As shown in FIG. 9, the user access online processing procedure includes the following steps:

Step S902, the user traffic enters the BRAS device through the primary interface or the associated interface.

Step S904, determining that the received interface is a Layer 3 interface, and searching for a local configuration table according to the carried source IP in the received traffic;

Step S906, it is found that the primary interface or the associated interface in the configuration table is the interface that the traffic enters, and is sent to the processing;

Step S908, the authentication and the online process are initiated according to the sent traffic;

Step S910: After the user successfully goes online, the user table is sent to the forwarding plane to include the primary interface and the associated interface.

FIG. 10 is a flowchart of processing a user traffic forwarding according to an embodiment of the present invention. As shown in FIG. 10, the flow of the traffic forwarding process from the primary interface and the associated interface includes the following steps:

Step S1002: User traffic enters the BRAS device through the primary interface or the associated interface.

Step S1004, determining that the received interface is a Layer 3 interface, and searching for a local user table according to the carried source IP in the received traffic;

In step S1006, it is found that the primary interface or the associated interface in the user table is the interface that the traffic enters, and is sent to the processing;

Step S1008: Perform rate limiting and forwarding processing according to the policy in the user table.

FIG. 11 is a flowchart of a traffic forwarding process of a network side to a Layer 3 device according to an embodiment of the present invention. As shown in FIG. 11, the flow of the traffic forwarding process from the network side to the BRAS to the downstream Layer 3 device includes the following steps:

Step S1102: The traffic initiated by the user enters the BRAS device through the network side interface.

Step S1104: Determine a local user table according to the carrying destination IP address in the received traffic, and determine that the user is a three-layer user, and perform traffic rate limiting and the like;

Step S1106: Determine, according to the routing table, that the delivered interface is a primary interface or an associated interface;

Step S1108: Delivering to the downstream Layer 3 device through the primary interface or the associated interface.

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

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

Industrial applicability

The foregoing embodiments of the present invention are applied to the communication field, and solve the problem that the BRAS interface cannot be backed up in the related art through the configured associated interface, and the BRAS route backup and handover are implemented.

Claims

A business processing method comprising:

Configuring one or more associated interfaces for the access interface, where the access interface and the associated interface are the same type of Layer 3 interface;

When the access interface is disconnected from the lower layer device, the route is switched to the associated interface for service processing.
The method of claim 1, wherein after configuring one or more associated interfaces for the access interface, the method further comprises:

And the information about the access interface and the associated interface, and the terminal information configured by the access interface, respectively, when the physical interface of the access interface and the associated interface are different.
The method according to claim 1 or 2, wherein the routing is switched to the associated interface for service processing in one of the following ways:

Virtual routing redundancy protocol VRRP, bidirectional forwarding detection BFD.
A business processing method comprising:

Obtaining a configuration table carrying configuration information, where the configuration information includes information of an access interface, pre-set information of an associated interface associated with the access interface, and the access interface is associated with the associated interface Configuration information, where the access interface and the associated interface are the same type of Layer 3 interface;

When the access interface is disconnected from the lower layer device, the route is switched to the associated interface for service processing according to the configuration information.
The method of claim 4, wherein

The information of the access interface includes: a MAC address of the access interface, a network address of the access interface, and routing information of the access interface;

The information of the associated interface includes: a MAC address of the associated interface, a network address of the associated interface, and routing information of the associated interface.
A service processing device comprising:

a configuration module, configured to configure one or more associated interfaces for the access interface, where the access interface and the associated interface are the same type of Layer 3 interface;

The first service processing module is configured to switch the route to the associated interface for service processing if the access interface is disconnected from the lower layer device.
The apparatus of claim 6 wherein said apparatus further comprises:

The saving module is configured to save the information of the access interface and the associated interface, and the terminal configured by the access interface, respectively, when the physical interface of the access interface and the associated interface are different. information.
The device according to claim 6 or 7, wherein the device further comprises:

The switching module is configured to switch the route to the associated interface for service processing in one of the following manners: virtual routing redundancy protocol VRRP, and bidirectional forwarding detection BFD.
A service processing device comprising:

An acquiring module, configured to acquire a configuration table that carries configuration information, where the configuration information includes information of an access interface, pre-set information of an associated interface associated with the access interface, and the access interface and The configuration information associated with the associated interface, where the access interface and the associated interface are the same type of Layer 3 interface;

The second service processing module is configured to switch the route to the associated interface for service processing according to the configuration information, in a case that the access interface is disconnected from the lower layer device.
The apparatus according to claim 9, wherein

The information of the access interface includes: a MAC address of the access interface, a network address of the access interface, and routing information of the access interface;

The information of the associated interface includes: a MAC address of the associated interface, a network address of the associated interface, and routing information of the associated interface.