WO2018137252A1

WO2018137252A1 - Route issuing method and device

Info

Publication number: WO2018137252A1
Application number: PCT/CN2017/072778
Authority: WO
Inventors: 蔡永生; 王晓凯
Original assignee: 华为技术有限公司
Priority date: 2017-01-26
Filing date: 2017-01-26
Publication date: 2018-08-02
Also published as: CN110226307A; CN110226307B

Abstract

The present application provides a route issuing method and device, used for a first network device; the first network device is a virtual broadband network service gateway; the first network device and a second network device are connected by means of two links; and the first network device comprises at least two forwarding units, the at least two forwarding units comprising a first forwarding unit. The method comprises : the first network device creates at least two routing protocol processes, one of the routing protocol processes being correlated to one forwarding unit; and the at least two routing protocol processes comprise a first routing protocol process. The first routing protocol process is correlated to the first forwarding unit by the first network device. The first network device issues routing information received from a first interface of the first forwarding unit, and correlated with the first routing protocol process, to the second network device through a second interface of the first forwarding unit. The method and the device are conducive to improving the forwarding performance of the first network device.

Description

Method and device for routing release

Technical field

The embodiments of the present invention relate to the field of communications, and in particular, to a method and an apparatus for routing a route.

Background technique

Network Function Virtualization (NFV) technology carries many functions by using general-purpose hardware (for example, hardware supporting the x86 general-purpose computer series standard released by Intel Corporation of the United States) and virtualization technology. Software processing. For example, software processing that carries the functionality of a traditional dedicated hardware network device is referred to as a virtual network device. NFV technology relies on hardware and software decoupling and functional abstraction, so that network device functions no longer depend on dedicated hardware, which not only reduces the cost of expensive dedicated hardware network equipment, but also enables flexible and flexible sharing of resources, enabling rapid development and deployment of new services. .

In the network, the Broadband Network Gateway (BNG) is used to provide authorized access, billing, traffic control, and data forwarding functions for network users. For example, the Broadband Remote Access Server (BRAS) is a BNG. Under the impetus of NFV technology, virtual network devices can be used to implement BNG functions. The virtual network device may be referred to as a virtual broadband network service gateway (English: virtual broadband network gateway, referred to as vBNG). For example, a virtual broadband remote access server (English: virtual Broadband Remote Access Server, vBRAS for short) is a type of vBNG.

vBNG can be composed of a virtual machine (English: virtual machine, VM for short). Wherein, the vBNG includes a forwarding VM. The forwarding VM is used to implement the data forwarding function of the network user in the vBNG. When at least two forwarding VMs are included in the vBNG, there is data forwarding forwarding across the VM, which reduces the forwarding performance of the vBNG.

Summary of the invention

The method and device for routing a route provided by the embodiment of the present invention solve the problem of low performance caused by forwarding data packets across the board in the virtual network device, and help improve the processing performance of the virtual network device.

To this end, the embodiments of the present invention provide the following technical solutions:

In a first aspect, a method for route advertisement is provided, which is applied to a first network device, where the first network device is a virtual broadband network service gateway, and the first network device and the second network device are connected by two links. The first network device includes at least two forwarding units, and the at least two forwarding units include a first forwarding unit, and the method includes:

The first network device creates at least two routing protocol processes, where one routing protocol process is associated with one forwarding unit, and the at least two routing protocol processes include a first routing protocol process; the first network device will be the first a routing protocol process is associated with the first forwarding unit; the first network device receives, from the first interface of the first forwarding unit, routing information associated with the first routing protocol process from the first The second interface of the forwarding unit is distributed to the second network device.

By associating a routing protocol process with a forwarding unit, the route received by the forwarding unit is only advertised from the interface of the forwarding unit to the second network device on the network side, thereby ensuring that the second network device can only learn. The route advertised from the interface of the forwarding unit avoids cross-board forwarding and improves the forwarding performance of the vBNG.

In a first possible implementation manner of the first aspect, the first network device associating the first routing protocol process with the first forwarding unit includes: the first network device indicating the first forwarding The unit sets the first tag from the routing information received by the first interface, and introduces routing information with the first tag into the first routing protocol process for publishing.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the first network device, The first information of the routing information setting includes: the first network device instructing, by the configuration command, that the first forwarding unit sets the first label from the routing information received by the first interface.

By setting the tag, the routing information to be imported into the first routing protocol process can be selected according to the needs of the user or the network administrator, and the routing information to be imported can be flexibly controlled according to the needs of the user or the network administrator.

In conjunction with the first or second possible implementation of the first aspect, in a third possible implementation of the first aspect, the routing information with the first label is imported to the first route The issuing of the protocol in the process includes: the first network device creating a routing policy, the routing policy indicating that the routing policy is satisfied if the marking of the routing information is the first marking; the first network device will satisfy the The routing information of the routing policy is introduced into the first routing protocol process for publishing.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the first network device, by using the routing information that meets the routing policy, to the first The advertised in the routing protocol process includes: the first network device, by using a configuration command, to import the routing information that meets the routing policy into the first routing protocol process for publishing.

By creating a routing policy to import routing information that meets the matching requirements into the corresponding routing protocol process, you can select which routing protocol process to import based on the needs of the user or network administrator, and implement the requirements according to the needs of the user or network administrator. Flexible control of the routing protocol process to be introduced, and configuration management is more flexible.

With reference to the first aspect, or any one of the first to fourth possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, the at least two forwarding units further include a second forwarding The unit, the at least two routing protocol processes further include a second routing protocol process, the method further comprising: the first network device associating the second routing protocol process with the second forwarding unit; A network device advertises routing information associated with the second routing protocol process received from the third interface of the second forwarding unit from the fourth interface of the second forwarding unit.

In a second aspect, a vBNG device for route publishing is provided, the vBNG device being configured to perform the method of the first aspect or any possible implementation of the first aspect. In particular, the vBNG device comprises means for performing the method of the first aspect or any of the possible implementations of the first aspect.

In a third aspect, the present invention provides a route-published vBNG device, where the route-published vBNG device includes: a memory, a transceiver, and a processor respectively connected to the memory and the transceiver. The memory is for storing a set of program instructions, the processor for invoking the program instructions stored by the memory to run a plurality of virtual machines to perform the method of the first aspect or any possible implementation of the first aspect.

In a fourth aspect, the present invention provides a computer readable storage medium having instructions stored therein that, when run on a computer, cause the computer to perform any of the first aspect or the first aspect The method in the way of implementation.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, only some embodiments of the present invention are reflected in the following drawings, and other embodiments of the present invention can be obtained according to the drawings without any inventive labor for those skilled in the art. . All such embodiments or implementations are within the scope of the invention.

FIG. 1a is a schematic diagram of a network according to an embodiment of the present invention; FIG.

FIG. 1b is a schematic diagram of a network in an embodiment of the present invention; FIG.

2 is a simplified schematic diagram of a route publishing method in an embodiment of the present invention;

3 is a schematic structural diagram of a vBNG in an embodiment of the present invention;

4 is a schematic structural diagram of another vBNG in the embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings. It is apparent that the described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention.

The network architecture and the service scenario described in the embodiments of the present invention are used to more clearly illustrate the technical solutions of the embodiments of the present invention, and do not constitute a limitation of the technical solutions provided by the embodiments of the present invention. The technical solutions provided by the embodiments of the present invention are equally applicable to similar technical problems.

As shown in FIG. 1a, the vBNG and the network device 2 are interconnected by at least two links (eg, link 1 and link 2), and the vBNG receives user-side routing information from the network device 3 through the interface 1, the routing information. The IP address information of the user equipment 1 may be an IP address such as 10.1.1.1, or an IP address prefix information, such as 10.1.1.0, or a subnet mask for the IP address, such as 10.1.1.1. /twenty four. The virtual network device runs an Interior Gateway Protocol (IGP) routing protocol process. For example, the IGP can be an Open Shortest Path First (OSPF), an intermediate system to an intermediate system. :Intermediate System-to-Intermediate System, IS-IS). After receiving the routing information from the user side, the vBNG advertises the routing information from interface 2 and interface 4 through the IGP process. The network device 2 receives the routing information from the interface 5 and the interface 6, respectively, and generates two forwarding entries. The destination IP address information of the two forwarding entries is the IP address information of the user equipment 1, and the outgoing interfaces are respectively interfaces. 5. Interface 6. For example, when the cost of the link 2 is lower than the cost of the link 1, the forwarding entry of the interface 6 is selected, and the data packet destined for the user equipment 1 is forwarded. After receiving the data packet destined for the user equipment 1 from the interface 4, the vBNG needs to go through the switching network, and the data packet is sent from the forwarding unit 2 to the forwarding unit 1, and the data packet is sent from the interface 1 of the forwarding unit 1. Send it out. It should be noted that the forwarding that needs to be performed across the switching network may be referred to as cross-board forwarding, cross-forwarding unit forwarding, or cross-VM forwarding. The corresponding data flow may be referred to as cross-board forwarding data flow and cross-forward unit forwarding number. The data stream is forwarded according to the flow or across the VM.

Since vBNG is handled by software instead of hardware (eg, chip) processing, performance is relatively poor. In particular, when the data packet needs to pass through the switching network within the vBNG, the forwarding performance of the vBNG is further degraded.

It should be noted that the switching network may be a hardware switch or a virtual switch of software. The network device 2 may be a network device of physical hardware, such as a router or a switch, or may be a virtual network device based on NFV technology, such as a virtual router or a virtual switch. User equipment (English: User Equipment, UE) may include various handheld devices with wireless communication functions, in-vehicle devices, wearable devices, computer devices or other processing devices connected to wireless modems, and various forms of user equipment, mobile Taiwan (English: Mobile Station, MS), terminal (English: terminal), terminal equipment (English: Terminal Equipment, TE) and so on. For convenience of description, in the present application, the devices mentioned above are collectively referred to as user equipments or UEs.

Based on the application scenario described in FIG. 1a, FIG. 2 is a schematic flowchart of a method for route advertisement according to an embodiment of the present invention. The method is applied to a vBNG (as a first network device), the first network device and the second network device are connected by two links, the first network device comprising at least two forwarding units, at least one control unit, at least A switching unit (also called a switching network). The at least two forwarding units include a first forwarding unit and a second forwarding unit. The IGP protocol is established between the first network device and the second network device, and an IGP neighbor relationship is established, and is in an IGP domain.

The solution provided by the embodiment of the present invention will be described below with reference to FIG.

The solution provided by the embodiment of the present invention includes part 201, part 302 and part 203, which are respectively described below.

In section 201, the first network device creates at least two routing protocol processes, wherein one routing protocol process is associated with one forwarding unit, and the at least two routing protocol processes include a first routing protocol process and a second routing protocol process. The routing protocol process can be an IGP routing protocol process such as an OSPF process or an IS-IS process.

A third routing protocol process is created on the second network device, and an IGP neighbor relationship is established between the first routing protocol process and the second routing protocol process on the first network device. Alternatively, a third routing protocol process and a fourth routing protocol process may be created on the second network device, where the third routing protocol process may establish an IGP with the first routing protocol process on the first network device. The neighbor relationship, the fourth routing protocol process may establish an IGP neighbor relationship with the second routing protocol process on the first network device.

In section 202, the first network device associates the first routing protocol process with the first forwarding unit, and associates the second routing protocol process with the second forwarding unit.

Associating the first routing protocol process with the first forwarding unit is understood to be that the first routing protocol process is only responsible for receiving an interface of the first forwarding unit that has not been added to the first routing protocol process. The obtained routing information is sent out (also called an advertisement) from an interface of the first forwarding unit that is added to the first routing protocol process. For example, as shown in FIG. 1a, the control unit of the vBNG creates the first routing protocol process (such as ospf process 1), and the interface 2 (which is the interface connected to the network side network device) joins the ospf1 (specifically, for example, Add the IP address configured on interface 2 to ospf1, or enable ospf on interface 2 to join the ospf process. The vBNG receives the packet from the user device 1 from the interface 1 (which is not connected to the ospf process 1), and obtains the IP address information of the user device 1 and uses it as the routing information to the ospf process. . The routing information of the user equipment 1 is advertised from the interface 2 to the network device 2 through the ospf process 1. It should be understood that the interface 2 is a network side interface, the interface 1 is a user side interface, the interface 2 may have multiple, and the interface 1 may also have multiple, here only They are illustrated by an interface, but they are not limited.

Specifically, the first network device may associate the first routing protocol process with the first forwarding unit in the following two manners.

In a first mode, the first network device directly introduces the routing information of the user terminal side received from the first interface of the first forwarding unit into the first routing protocol process, and the first routing protocol process And routing the routing information from the second interface of the first forwarding unit to the second network device. The method is directly encoded and implemented in the software in the product development process of the first network device, and does not require subsequent manual configuration operations to participate in the implementation.

Manner 2: The first network device instructs the first forwarding unit to set a first flag from routing information received from the first interface, and import routing information with the first label into the first route Released during the protocol process.

Optionally, setting the first flag may be implemented on the first network device by using a configuration command. For example, the following command line indicates that the user network route (English: user network route, unr) received on slot 1 (ie, forwarding unit 1) is marked (English: tag) 100.

[vBNG-slot-1]ip unr host-route-tag 100

By setting a flag, routing information that needs to be introduced into the first routing protocol process can be selected according to the needs of the user or the network administrator (for example, all or part of the user network side routes received on the forwarding unit 1 can be routed. The introduction is performed, of course, if it is not set, it may not be introduced. The routing information to be imported is flexibly controlled according to the needs of the user or the network administrator.

Further, the first network device creates a routing policy, where the routing policy indicates that the routing policy is satisfied if the marking of one routing information is the first marking. The first network device introduces the routing information that meets the routing policy into the first routing protocol process for publishing.

Optionally, creating a routing policy may be implemented by using a configuration command on the first network device. E.g,

Create routing policy 1 in the vBNG view (English: policy1):

[vBNG]route-policy policy1

Create a matching identifier for the routing policy in the view of routing policy 1 as tag 100:

[vBNG-routepolicy-policy1]if-match tag 100

Configured in the view of the ospf process 1 of the vBNG. If a route information matches the tag 200, the route information is imported into the ospf process 1.

[vBNG-ospf-1]import-route unr route-policy policy1

The method of associating the second routing protocol with the second forwarding unit is the same as the method for associating the first routing protocol with the first forwarding unit. For brevity, details are not described herein again.

In 203, the first network device receives, from the first interface of the first forwarding unit, routing information associated with the first routing protocol process from a second interface of the first forwarding unit The second network device is released, and the routing information includes IP address information of the user equipment.

As shown in FIG. 1a, the network device 1 will receive the routing information of the user equipment 1 from the interface 1 of the forwarding unit 1 (the routing information of the user equipment 1 has been introduced into the first routing protocol process by the method of part 202) From forwarding The interface 2 of the unit 1 is issued to the network device 2. After receiving the routing information of the user equipment 1 from the interface 5, the network device 2 runs a third routing protocol process to generate a forwarding entry destined for the user equipment 1, and the destination IP address information of the forwarding entry is the IP address of the user equipment 1. Information, the outgoing interface is interface 5. Therefore, when the network device 2 forwards the data packet destined for the user equipment 1, only the interface 5 is used; then, through the link 1, from the interface 2 of the vBNG, the forwarding unit 1 of the vBNG is accessed, and then the interface 1 of the forwarding unit 1 is forwarded. The data packet is sent and received on the same forwarding unit 1, avoiding cross-board forwarding.

By associating the first routing protocol process with the first forwarding unit, the route received by the first forwarding unit is only advertised from the interface of the first forwarding unit to the second network device on the network side, thereby ensuring the first The network device can only learn the routes advertised by the interface from the first forwarding unit, thereby avoiding cross-board forwarding and improving the forwarding performance of the vBNG.

Further, the first network device advertises the routing information associated with the second routing protocol process received from the third interface of the second forwarding unit from the fourth interface of the second forwarding unit.

As shown in FIG. 1a, similarly to the above, the network device 1 will receive the routing information of the user equipment 2 received from the interface 3 of the forwarding unit 2 (the routing information of the user equipment 2 has been introduced to the second through the method of part 202). The routing protocol process is issued from the interface 4 of the forwarding unit 2 to the network device 2. After receiving the routing information of the user equipment 2 from the interface 6, the network device 2 runs the third routing protocol process (as described in section 201 above, when the network device 2 runs a routing protocol process) or the fourth The routing protocol process (as described in section 201 above, when the network device 2 runs two routing protocol processes) generates a forwarding entry destined for the user equipment 2, and the destination IP address information of the forwarding entry is the IP of the user equipment 2 Address information, the outbound interface is interface 6. Therefore, as shown in FIG. 1b, when the network device 2 forwards the data packet destined for the user equipment 2, only the interface 6 is used; then, through the link 2, the interface 4 of the vBNG enters the forwarding unit 2 of the vBNG, and then the forwarding unit The interface 3 of 2 is forwarded out; the data packet sent and received is transmitted on the same forwarding unit 2, and cross-board forwarding is avoided.

By associating each forwarding unit with each routing protocol in a one-to-one correspondence, the route received by each forwarding unit is only advertised from the interface of the forwarding unit to the second network device on the network side, thereby ensuring the second network. The device can only learn the routes advertised from the interface of the forwarding unit, thus avoiding cross-board forwarding and improving the forwarding performance of the vBNG.

FIG. 3 is a schematic structural diagram of a vBNG device according to an embodiment of the present invention. The vBNG device 300 includes a creation unit 302, an association unit 304, and a transmission unit 306.

The creating unit 302 is configured to create at least two routing protocol processes, where one routing protocol process is associated with one forwarding unit, and the at least two routing protocol processes include a first routing protocol process.

The association unit 304 is configured to associate the first routing protocol process with the first forwarding unit.

Optionally, the association unit 304 is configured to instruct the first forwarding unit to set a first flag from the routing information received by the first interface, and import routing information with the first tag into the Released in the first routing protocol process. For example, the associating unit 304 may perform the above-described function of setting a flag by a configuration command.

Further, the associating unit 304, the routing information that has the first label is imported into the first routing protocol process for publishing, specifically includes:

The association unit 304 is further configured to instruct the creating unit 302 to create a routing policy, where the routing policy indicates If the marking of a routing information is the first marking, the routing policy is satisfied.

The association unit 304 is further configured to import the routing information that meets the routing policy into the first routing protocol process for publishing.

The sending unit 306 is configured to receive routing information associated with the first routing protocol process from the first interface of the first forwarding unit from the second interface of the first forwarding unit to the second network The device is released.

The vBNG device 300 of the embodiment of the present invention may implement various implementation functions and steps in the vBNG device (ie, the first network device) in the embodiment corresponding to the foregoing FIG. 1a to FIG. 2 . For brevity, details are not described herein again.

FIG. 4 is a block diagram showing the hardware structure of a computer device in an embodiment of the present invention. The computer device 400 is for generating and running a virtual network device. The virtual network device 400 is used to implement the function of the BNG, and is a vBNG device.

The computer device 400 includes a memory 401, a transceiver 402, and a processor 403 coupled to the memory 401 and the transceiver 402, respectively. The memory 401 is configured to store a set of program instructions, and the processor 403 is configured to invoke program instructions stored by the memory 401 to run a plurality of virtual machines to implement a plurality of units in the virtual network device.

A virtual machine is a complete computer system that runs through a software and has full hardware system functionality running in a fully isolated environment. The virtual machine is deployed on a hardware device (for example, a physical server). Those skilled in the art can use the NFV technology to virtualize a plurality of gateway devices having the above functions on a general physical server by reading the present application. I will not repeat them here.

The virtual machine running in the processor 403 includes a forwarding unit 4031, a forwarding unit 4032, and a control unit 4033. The control unit 4033 is a virtual machine for implementing the control management function, and the forwarding unit 4031 and the forwarding unit 4032 are virtual machines for implementing the data forwarding function.

The control unit 4033 is configured to create at least two routing protocol processes, where one routing protocol process is associated with one forwarding unit, and the at least two routing protocol processes include a first routing protocol process.

The control unit 4033 is further configured to associate the first routing protocol process with the first forwarding unit.

Optionally, the control unit 4033 is configured to instruct the first forwarding unit to set a first flag from the routing information received by the first interface, and import routing information with the first tag into the first Released in a routing protocol process. For example, the control unit 403 can complete the above-described function of setting a flag by a configuration command.

Further, the initiating, by the control unit 4033, the routing information that has the first label to be sent to the first routing protocol process for publishing includes:

The control unit 4033 is further configured to create a routing policy, where the routing policy indicates that the routing policy is satisfied if the marking of a piece of routing information is the first marking.

The control unit 4033 is further configured to import the routing information that meets the routing policy into the first routing protocol process for publishing.

The transceiver 4032 is configured to receive, from the first interface of the first forwarding unit, the routing information associated with the first routing protocol process from the second interface of the first forwarding unit to the second network. The device is released.

The vBNG device 400 of the embodiment of the present invention may implement various implementation functions and steps in the vBNG device (ie, the first network device) in the foregoing embodiment corresponding to FIG. 1a to FIG. 2 . The control unit 4033 is used to perform All operations of the creating unit 302 and the associating unit 304 of the vBNG device are performed in FIG. 3, and the transceiver 402 is configured to perform all operations of the transmitting unit 306 of the vBNG device of FIG. For the sake of brevity, it will not be repeated here.

In a first possible implementation manner of this embodiment, the virtual machine running in the processor 403 further includes a switching unit, and the switching unit may be a VM that performs a switch function. It should be noted that the forwarding units in the vBNG device 400 can also exchange data packets through a hardware physical switch.

It should be noted that the vBNG device in the embodiment of the present invention includes at least two forwarding units and at least one control unit. Here, the forwarding unit 4031 and the forwarding unit 4032, and the control unit 4033 are merely examples, and are not limiting.

It should be understood that, based on the reading of the present application, those skilled in the art can make an optional combination of the optional features, steps or methods described in the embodiments of the present application, and belong to the embodiments disclosed in the present application. Just because the description or the simplicity of the text does not repeat the different combinations.

It should be understood that the term "and/or" herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and A and B exist simultaneously. There are three cases of B alone. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

It should be understood that, in various embodiments of the present invention, the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention. The implementation process constitutes any limitation.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present invention is essentially The portion contributing to the prior art or the portion of the technical solution may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a computer device (may be A personal computer, server, or network device, etc.) performs all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

A method for route issuance, which is applied to a first network device, where the first network device is a virtual broadband network service gateway, and the first network device and the second network device are connected by two links. The first network device includes at least two forwarding units, and the at least two forwarding units include a first forwarding unit, and the method includes:

The first network device creates at least two routing protocol processes, where one routing protocol process is associated with one forwarding unit, and the at least two routing protocol processes include a first routing protocol process;

The first network device associates the first routing protocol process with the first forwarding unit;

The first network device receives, from the first interface of the first forwarding unit, routing information associated with the first routing protocol process from a second interface of the first forwarding unit to the second network The device is released.
The method according to claim 1, wherein the associating the first routing protocol process with the first forwarding unit by the first network device comprises:

The first network device instructs the first forwarding unit to set a first flag from the routing information received from the first interface, and introduce routing information with the first label into the first routing protocol Publish in progress.
The method according to claim 2, wherein the first network device instructing the first forwarding unit to set the first identifier of the routing information received from the first interface comprises: the first network The device instructs the first forwarding unit to set a first flag from the routing information received by the first interface by using a configuration command.
The method according to claim 2 or 3, wherein the introducing the routing information with the first label into the first routing protocol process for publishing comprises:

The first network device creates a routing policy, where the routing policy indicates that the routing policy is satisfied if the marking of a routing information is the first marking;

The first network device introduces the routing information that meets the routing policy into the first routing protocol process for publishing.
The method according to claim 4, wherein the first network device introduces the routing information that satisfies the routing policy into the first routing protocol process for publishing, including: the first network device And the routing information that meets the routing policy is imported into the first routing protocol process for publishing by using a configuration command.
A virtual broadband network service gateway device is used as the first network device, and is characterized in that the first network device is connected to the second network device by two links, and the first network device includes at least two a forwarding unit, the at least two forwarding units include a first forwarding unit, and the apparatus includes:

a creating unit, configured to create at least two routing protocol processes, where one routing protocol process is associated with one forwarding unit, and the at least two routing protocol processes include a first routing protocol process;

An association unit, configured to associate the first routing protocol process with the first forwarding unit;

a sending unit, configured to receive, from the first interface of the first forwarding unit, the routing information associated with the first routing protocol process from the second interface of the first forwarding unit to the second network device release.
The device according to claim 6, wherein the associating the first routing protocol process with the first forwarding unit by the first network device comprises:

The association unit is configured to instruct the first forwarding unit to set the routing information received from the first interface Setting a first flag, and introducing routing information with the first tag into the first routing protocol process for publishing.
The apparatus according to claim 7, wherein the associating unit is configured to indicate that the routing information received from the first interface is set to a first flag, and the association unit indicates the first A forwarding unit sets the first tag from the routing information received from the first interface.
The device according to claim 7 or 8, wherein the introducing the routing information with the first label into the first routing protocol process for publishing comprises:

The creating unit is configured to create a routing policy, where the routing policy indicates that the routing policy is satisfied if the marking of a routing information is the first marking;

The association unit is configured to import the routing information that meets the routing policy into the first routing protocol process for publishing.
The apparatus according to claim 9, wherein the associating unit is configured to introduce the routing information that satisfies the routing policy into the first routing protocol process for publishing, where the association unit is configured by The command indicates that the routing information that meets the routing policy is imported into the first routing protocol process for publishing.