CN111526059B

CN111526059B - Networking method, device, equipment and storage medium

Info

Publication number: CN111526059B
Application number: CN202010424172.7A
Authority: CN
Inventors: 吴顺宁; 吴其林; 姚紫腾; 陈英; 黄永坚; 陈溪圣; 余金海
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2023-03-03
Anticipated expiration: 2040-05-19
Also published as: CN111526059A

Abstract

The invention relates to a networking method, a networking device, networking equipment and a storage medium, which are applied to the technical field of communication, wherein the method comprises the steps of monitoring whether a service layer link between an OLT (optical line terminal) and a BNG (bayonet nut connector) which are deployed with ARP (address resolution protocol) detection is interrupted, wherein the BNG does not have a single-arm BFD (bidirectional Forwarding detection) function; and if so, immediately updating the ARP table entry of the OLT so as to enable the BNG and the OLT to be networked again. By deploying the ARP detection function on the OLT, the ARP of the network management service can be quickly refreshed, the scene of quick switching-back of upper-layer VRRP is solved, and the switching and updating time is shortened.

Description

Networking method, device, equipment and storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a networking method, apparatus, device, and storage medium.

Background

The current networking mode mainly includes communication between broadband network gateway control devices (BNGs) and Optical Line Terminals (OLTs), and when a service layer link between an OLT and a BNG is interrupted (a physical port is normal), the link is often connected by setting a main BNG and a standby BNG. Specifically, the heartbeat of the primary and standby Virtual Router Redundancy Protocol (VRRP) is interrupted, and at this time, the VRRP state of the standby BNG is switched from backup-master to standby BNG in terms of service and management.

In this way, when the active BNG is switched to the standby BNG, the VRRP state of the active BNG is still master because the state of the port of the active BNG is not changed, and after the active BNG service layer link is restored, the VRRP state of the standby BNG is master- > backup and the service is switched back to the active BNG. In the updating process, because the ARP does not point to the active BNG immediately when the service layer link is reconnected, the OLT can reconnect to the active BNG only after waiting for the ARP entry to be automatically updated according to the built-in time length, so that the switching and updating process takes a long time.

Disclosure of Invention

In view of the foregoing, the present invention provides a networking method, apparatus, device and storage medium to overcome at least some of the problems in the related art.

In order to solve the technical problems, the invention adopts the following technical scheme:

in a first aspect, a networking method includes:

monitoring whether a service layer link between an OLT (optical line terminal) and a BNG (bayonet nut gateway) deployed with ARP (address resolution protocol) detection is interrupted, wherein the BNG does not have a single-arm BFD (bidirectional Forwarding detection) function;

and if so, immediately updating the ARP table entry of the OLT so as to enable the BNG and the OLT to be networked again.

Optionally, the monitoring whether a networking link between the OLT and the BNG, where the ARP detection is deployed, is interrupted includes:

sending a detection instruction to enable the OLT to send an ARP request to a BNG;

and if the BNG responds to the ARP request and the ARP table entry changes, judging that the networking link is interrupted.

Optionally, the sending the ARP request to the BNG includes:

and sending an ARP request to the BNG at each preset time in a preset scene, and setting a preset timeout multiple.

Optionally, the preset time is 2 seconds, and the timeout multiple is 3.

Optionally, the OLT has a plurality of upstream ports, and the immediately updating the ARP entry of the OLT includes:

and detecting a plurality of uplink ports of the OLT, and switching the interrupted link into a protection link.

In a second aspect, a networking device comprises:

the system comprises a BNG and an OLT which are mutually networked, wherein the OLT is provided with an ARP detection module, and the BNG does not have a single-arm BFD function;

the ARP detection module is configured to immediately update an ARP table entry of the OLT when a service layer link between the OLT and the BNG is interrupted, so that the BNG and the OLT are re-networked.

Optionally, the OLT specifically includes at least one OLT,

a sending module, configured to send a probe instruction, so that the OLT sends an ARP request to a BNG;

and the judging module is used for judging that the networking link is interrupted if the BNG responds to the ARP request and the ARP table entry changes.

Optionally, the ARP detection module is specifically configured to detect multiple uplink ports of the OLT, and switch an interrupted link to a protection link.

In a third aspect, a networking device comprises:

a processor, and a memory coupled to the processor;

the memory is used for storing a computer program;

the processor is configured to invoke and execute the computer program in the memory to perform the networking method of the first aspect.

In a fourth aspect, a storage medium stores a computer program which, when executed by a processor, implements the networking method according to any one of the first aspect of the invention.

By adopting the technical scheme, the invention can realize the following technical effects: according to the method and the device, an ARP detection function is deployed on the OLT, the BNG does not have a single-arm BFD function, and when a networking link between the OLT and the BNG is interrupted, an ARP table entry of the OLT is immediately updated so that the BNG and the OLT can be networked again. By deploying the ARP detection function on the OLT, the ARP of the network management service can be quickly refreshed, the scene of quick switching-back of upper-layer VRRP is solved, and the switching and updating time is shortened.

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 descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of a networking approach provided in the prior art;

fig. 2 is a schematic flowchart of a networking method according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating a networking method according to another embodiment of the present invention;

fig. 4 is a schematic structural diagram of a networking device according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a networking device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

For a better understanding of the solution provided by the present application, the following needs to be understood:

in the prior art, two BNGs start the VRRP protocol under the dual-homing networking of the OLT, and as shown in fig. 1, when a service layer link between the OLT and the active BNG is interrupted (a physical port is normal), a primary VRRP heartbeat and a standby VRRP heartbeat are interrupted, at this time, the VRRP state of the standby BNG is switched from backup- > master, service and management are switched to the standby BNG, but because the port state of the active BNG link is not changed, the VRRP state of the active BNG is still master, and when the active BNG service layer link is restored, the VRRP state of the standby BNG is switched from master- > backup, and service is switched back to the active BNG.

Because the VRRP can send the free ARP to the host in the process of initialization- - > master and backup- - > master, but the VRRP is not changed in the whole process of switching the VRRP to recovery, the free ARP can not be sent to the OLT to update the table entry, so that the ARP table entry of the OLT still points to the side of the standby BNG, and the equipment recovers to normal after the ARP table entry is updated after the OLT waits for 20 minutes until the ARP table entry is aged.

In the standard networking in the prior art, the BNG is realized by deploying a single-arm BFD between the BNG and the OLT to monitor a link channel between the BNG and the OLT, so as to link UP/down states of service sub-ports, avoid the situation that the BNG cannot sense service link interruption between the OLTs (the service is interrupted, but the ports interconnecting the BNG and the OLT are also UP), and simultaneously link UP fast convergence of routing, wherein the LACP in the wayside is divided into two types of 'slow switching' and 'fast switching', the timeout multiple of the slow switching is 3, and the timeout multiple of the fast switching is 1s and is 3. The link change can be sensed in time and the routing convergence can be carried out in time.

However, since the BNG in the upper layer temporarily does not deploy the single-arm BFD function, and the LACP timeout time is 1 minute in the statically aggregated networking, when the intermediate link is flashed, the intermediate link cannot be timely sensed and timely switched, resulting in the equipment hosting, and finally the BNG side is required to perform related function optimization, a new networking mode is provided in the present application to solve the above problems.

Examples

Fig. 2 is a flowchart illustrating a networking method according to an embodiment of the present invention. As shown in fig. 2, the present embodiment provides a networking method, including:

step 201, monitoring whether a service layer link between an OLT (optical line terminal) deployed with ARP (address resolution protocol) detection and a BNG (bayonet nut gateway) is interrupted, wherein the BNG does not have a single-arm BFD (bidirectional Forwarding detection) function;

in some embodiments, the speed of networking update is increased by deploying the ARP detection instance on the OLT, and it can be understood that when the OLT has multiple upstream ports, an ARP detection instance needs to be deployed for each upstream port.

And 202, if yes, immediately updating the ARP table entry of the OLT so as to enable the BNG and the OLT to be re-networked.

In this embodiment, by deploying the ARP detection function on the OLT, when a networking link between the OLT and the BNG is interrupted, the ARP entry of the OLT is immediately updated, so that the BNG and the OLT are reconfigured. By deploying the ARP detection function on the OLT, the ARP of the network management service can be quickly refreshed, the scene of quick switching-back of upper-layer VRRP is solved, and the switching and updating time is shortened.

Fig. 3 is a flowchart illustrating a networking method according to an embodiment of the present invention. As shown in fig. 3, the present embodiment provides a networking method, including:

step 301, sending a detection instruction to enable the OLT to send an ARP request to the BNG;

the OLT is provided with an ARP detection module, and the BNG does not have a single-arm BFD function.

In some embodiments, the speed of networking update is increased by deploying the ARP detection instance on the OLT, and it can be understood that when the OLT has multiple upstream ports, an ARP detection instance needs to be deployed for each upstream port. Specifically, during ARP probing, it is possible to confirm whether both are being re-networked by sending an ARP request to the BNG.

The sending of the ARP request to the BNG by the OLT may be implemented by:

and sending an ARP request to the BNG at each preset time in a preset scene, and setting a preset timeout multiple. Specifically, the preset scenario is networking between the default OLT and bng of the system, the preset time may be, but is not limited to, 2 seconds, and the preset timeout multiple may be, but is not limited to, 3.

Step 302, if the BNG responds to the ARP request and the ARP entry changes, it determines that the networking link is interrupted.

In some embodiments, the OLT sends an ARP request to BNG, when both networks are normal, the BNG does not respond to the ARP request, and when a networking link is interrupted, the BNG responds to the ARP request, and the ARP entry changes, thereby determining that the networking link between the OLT and the BNG is interrupted.

And 303, if so, immediately updating the ARP table entry of the OLT so as to enable the BNG and the OLT to be networked again.

In some embodiments, generally, the OLT has a plurality of upstream ports, and the immediately updating the ARP entry of the OLT may be: and detecting a plurality of uplink ports of the OLT, and switching the interrupted link into a protection link. Specifically, when the active link in the dual uplink fails, the device may automatically switch the uplink port according to the ARP detection result, and switch to the protection link, thereby ensuring smooth management service.

Fig. 4 is a schematic structural diagram of a networking device according to an embodiment of the present invention. Referring to fig. 4, an embodiment of the present application provides a networking apparatus, including:

the system comprises a BNG401 and an OLT402 which are mutually networked, wherein the OLT is provided with an ARP detection module 403, and the BNG does not have a single-arm BFD function;

the ARP detection module is configured to immediately update an ARP table entry of the OLT when a service layer link between the OLT and the BNG is interrupted, so that the BNG and the OLT are enabled to re-network.

Optionally, the OLT specifically includes at least one OLT,

and the judging module is used for judging that the networking link is interrupted if the BNG responds to the ARP request and the ARP table entry is changed.

For a specific implementation scheme of this embodiment, reference may be made to the networking method and related descriptions in the method embodiments described in the foregoing embodiments, and details are not described here again.

Fig. 5 is a schematic structural diagram of a networking device according to an embodiment of the present invention. Referring to fig. 5, an embodiment of the present application provides a networking device, including:

a processor 501, and a memory 502 connected to the processor;

storing for storing a computer program;

the processor is used to call and execute the computer program in the memory to execute the networking method as in the above embodiments.

For a specific implementation of this embodiment, reference may be made to the networking method described in the foregoing embodiments and the related descriptions in the method embodiments, which are not described herein again.

An embodiment of the present invention provides a storage medium, where a computer program is stored, and when the computer program is executed by a processor, the steps in the networking method are implemented.

For a specific implementation scheme of this embodiment, reference may be made to relevant descriptions in the foregoing networking method embodiments, and details are not described here again.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.

It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps in the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by suitable instruction execution devices. For example, if implemented in hardware, as in another embodiment, any one or combination of the following technologies, which are well known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried out in the method of implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and the program, when executed, includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A networking method, comprising:

the monitoring whether a service layer link between the OLT and the BNG deployed with the ARP detection is interrupted comprises: sending a probing instruction to enable the OLT to send an ARP request to a BNG;

if the BNG responds to the ARP request and the ARP table entry changes, the networking link is judged to be interrupted;

2. The networking method of claim 1, wherein sending the ARP request to the BNG comprises:

3. The networking method according to claim 2, wherein the preset time is 2 seconds, and the timeout multiple is 3.

4. The networking method according to claim 1, wherein the OLT has a plurality of upstream ports, and the immediately updating the ARP entry of the OLT comprises:

5. A networking apparatus, comprising:

the OLT specifically includes:

a judging module, configured to judge that a networking link is interrupted if the BNG responds to the ARP request and an ARP entry changes;

6. The networking device according to claim 5, wherein the ARP detection module is specifically configured to detect a plurality of upstream ports of the OLT and switch an interrupted link to a protection link.

7. A networking device, comprising:

a processor, and a memory coupled to the processor;

the memory is used for storing a computer program;

the processor is configured to invoke and execute the computer program in the memory to perform the networking method of any of claims 1-4.

8. A storage medium storing a computer program which, when executed by a processor, implements the networking method of any one of claims 1-4.