CN114079631A

CN114079631A - PTN networking and base station service protection method, device, equipment and storage medium

Info

Publication number: CN114079631A
Application number: CN202010797533.2A
Authority: CN
Inventors: 洪威; 陈辉
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Group Zhejiang Co Ltd
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Group Zhejiang Co Ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2022-02-22

Abstract

The invention discloses a PTN networking and base station service protection method, device, equipment and storage medium, wherein the PTN networking comprises the following steps: three trunk-saving PTNs, a core layer PTN, a convergence layer and an access layer; for a target province, the core layer PTN comprises two pairs of two-layer to three-layer devices of each county, two pairs of three-layer ground devices of each city, and the province trunk three-layer PTN comprises two pairs of three-layer ground devices of the target province, wherein the two pairs of three-layer ground devices of the city are interconnected; aiming at any county, a first pair of two-layer to three-layer equipment of the county, a first pair of three-layer ground equipment of a city to which the county belongs and a first pair of three-layer ground equipment of a target province are combined to form a first bearing plane; and a second pair of second-layer to third-layer equipment of the county, second pair of third-layer ground equipment of the city to which the county belongs and second pair of third-layer dry ground equipment of the target province are assembled to form a second bearing plane. The scheme of the invention can realize service level protection by establishing the biplane.

Description

PTN networking and base station service protection method, device, equipment and storage medium

Technical Field

The invention relates to the technical field of bearer networks, in particular to a PTN networking and base station service protection method, device, equipment and storage medium.

Background

Service protection of the existing LTE base station is realized based on protection of a bearer network. The service of each LTE base station adopts a single service IP, the base station route points to a single GateWay, the LTE service is networked in a master-standby mode, the LTE service is forwarded to an L2/L3 (layer 2 to layer 3) node through an L2VPN (layer 2 virtual private Network), enters a layer 3 through an L2VE/L3VE (layer 2 virtual Ethernet interface and a layer 3 virtual Ethernet interface) on an L2/L3 node, is forwarded to a core PTN (Packet Transport Network ) node of a direct connection SGW (Serving GateWay)/MME (Mobility Management Entity) through the L3VPN (layer 3 virtual private Network), and is forwarded to the SGW/MME through the core node.

The service runs on a single plane, and the protection switching is realized by a bearing network when the fault occurs. The specific protection scheme comprises equipment level protection and network level protection, wherein the equipment level protection comprises dual-machine hot standby, dual-master control, dual power supply and port trunk protection, the network level protection comprises MC-PW APS protection adopted by a two-layer network, and FRR + BFD detection/MPLS OAM protection adopted by a three-layer network.

In the prior art, the bearer network itself is used for protection switching, so that the device-level and network-level fault protection of the bearer network is realized, but when the bearer network is abnormal, the self-switching cannot be realized, or the single plane fails, the service is blocked.

Disclosure of Invention

In view of the above problems, embodiments of the present invention are proposed to provide a PTN networking and base station traffic protection method, apparatus, device and storage medium that overcome or at least partially solve the above problems.

According to an aspect of an embodiment of the present invention, there is provided a PTN networking including: the three province trunk layers PTN, the core layer PTN, the convergence layer and the access layer are hung from top to bottom in sequence;

for a target province, the core layer PTN comprises two pairs of two-layer to three-layer devices of each district and county, two pairs of three-layer ground devices of each city, the province trunk three-layer PTN comprises two pairs of three-layer ground devices of the target province, and the two pairs of three-layer ground devices of the cities are interconnected;

aiming at any county, a first pair of two-layer to three-layer equipment of the county, a first pair of three-layer ground equipment of a city to which the county belongs and a first pair of three-layer ground equipment of a target province are combined to form a first bearing plane; and a second pair of second-layer to third-layer equipment of the county, second pair of third-layer ground equipment of the city to which the county belongs and second pair of third-layer dry ground equipment of the target province are assembled to form a second bearing plane.

According to another aspect of the embodiments of the present invention, there is provided a base station service protection method, where the method is implemented based on the PTN networking of any one of claims 1 to 3, and includes:

configuring two IP addresses for a base station, and enabling the two IP addresses to be respectively loaded through a first loading plane and a second loading plane;

and when any IP address is sensed to be full-blocked, automatically switching to a bearing plane where the other IP address is located to forward the service of the base station.

According to another aspect of the present invention, there is provided a base station service protection apparatus, including:

the configuration module is suitable for configuring two IP addresses for the base station and enabling the two IP addresses to be respectively loaded through a first loading plane and a second loading plane;

and the switching module is suitable for automatically switching to a bearing plane where another IP address is positioned to forward the service of the base station when sensing the full resistance of any IP address.

According to still another aspect of the embodiments of the present invention, there is provided a computing device including: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;

the memory is used for storing at least one executable instruction, and the executable instruction enables the processor to execute the operation corresponding to the base station service protection method.

According to another aspect of the embodiments of the present invention, a computer storage medium is provided, where at least one executable instruction is stored in the storage medium, and the executable instruction causes a processor to perform an operation corresponding to the above-mentioned base station service protection method.

According to the PTN networking and base station service protection method, device, equipment and storage medium provided by the embodiment of the invention, a new IP is additionally distributed to the original base station through a double-IP double-homing scheme, a new service is deployed on a bearing network, a new gateway is deployed at an L2/L3 node, the logical double-plane deployment is realized on a unified physical bearing network, the LTE base station is switched on a service level when the abnormal switching of the bearing network per se fails, and the normal service can be ensured as long as the basic physical level of the bearing network is not abnormal.

The foregoing description is only an overview of the technical solutions of the embodiments of the present invention, and the embodiments of the present invention can be implemented according to the content of the description in order to make the technical means of the embodiments of the present invention more clearly understood, and the detailed description of the embodiments of the present invention is provided below in order to make the foregoing and other objects, features, and advantages of the embodiments of the present invention more clearly understandable.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the embodiments of the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 illustrates a block diagram of a portion of a PTN networking in Zhejiang province in one particular example of the invention;

fig. 2 is a flowchart illustrating a method for protecting base station services according to an embodiment of the present invention;

fig. 3 is a diagram illustrating a specific routing scheme according to an embodiment of the present invention;

FIG. 4 is a diagram illustrating a specific node distribution according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram illustrating a base station service protection apparatus according to an embodiment of the present invention;

fig. 6 shows a schematic structural diagram of a computing device provided by an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In the invention, firstly, the traditional single-plane network architecture is optimized and adjusted. Fig. 1 shows a block diagram of a partial PTN networking in zhejiang province in one specific example of the present invention. In fig. 1, only a partial networking corresponding to a county is shown, and the gray square boxes in fig. 1 are old devices in the original PTN networking, and the blank square boxes are new devices.

The structure of the PTN networking after optimization and adjustment according to the present invention will be described with reference to the example of fig. 1.

The PTN (packet transport network) networking of the embodiment of the invention comprises a province trunk L3 PTN (province trunk three-layer PTN), a core layer PTN, a convergence layer and an access layer which are sequentially hung from top to bottom; wherein, for a target province, the core layer PTN includes two pairs of L2-to-L3 (two-to-three layers, herein, L2 represents two layers, and L3 represents three layers) devices for each prefecture, two pairs of prefecture floor L3 devices for each prefecture, the province trunk L3 PTN includes two pairs of province trunk floor L3 devices for the target province, and two pairs of prefecture floor L3 devices are interconnected. Wherein, prefecture and prefecture are all included in the target province.

And aiming at any county, constructing a first bearing plane by a first pair of L2-to-L3 equipment of the county, a first pair of land city floor-falling L3 equipment of a land city to which the county belongs and a first province trunk floor-falling L3 equipment of the target province; and a second pair of L2-to-L3 equipment in the district, a second pair of land market floor L3 equipment in the city to which the district belongs and a second pair of province trunk floor L3 equipment in the target province form a second bearing plane.

Referring to fig. 1, if L2/L3(L2 changes to L3) devices in zhejiang province have sunk to county, if the pair of L2/L3 fails, voice and data services in county are all blocked, the consequences are very serious, and a three-layer network protection mode and a service trend are complex and are the most prone to failure, so that a biplane networking of a three-layer network (above backbone L2) is imperative. In fig. 1, a pair of dry floor L3 devices is newly added for zhejiang, a pair of floor L3 devices is newly added for a certain city of zhejiang, and a pair of L2/L3 devices is newly added for a certain county of the city, and the newly added devices are grouped into a second bearing plane, where the first bearing plane is a single plane in the original PTN networking. In fig. 1, two pairs of local cities L3 of the first bearer plane and the second bearer plane need to be interconnected to carry 2 times of traffic, so that the cross-plane base stations implement interconnection;

it should be noted that fig. 1 only shows that a pair of L2/L3 devices and a pair of L3 devices for local cities and counties in zhejiang province are added, but in actual implementation, in a complete PTN networking of a province, a pair of L2/L3 devices should be added for each county, 2 pairs of L2/L3 devices with rich capacity are guaranteed for each county, and a pair of L3 devices for each city and county are added; and, in practical implementation, each county should form two bearing planes, not just two in fig. 1; in fig. 1, the provincial trunk floor L3 device is not included in the carrying plane only because of the position of the provincial trunk floor L3 device, but actually, a pair of provincial trunk floor L3 devices, a pair of city floor L3 devices, and a pair of L2-to-L3 devices form one carrying plane.

Optionally, in the PTN networking disclosed in the embodiment of the present invention, in the first bearer plane and the second bearer plane, the L2-to-L3 device to the L3 device in the city ground passes through an OTN (Optical Transport Network) dual plane bearer. For cities with abundant OTN resources, L2/L3-L3 basically propose to realize OTN route optimization through OTN biplane load bearing, and prevent the traffic total blocking under the condition that OTN single plane fails or the same route.

Optionally, in the PTN networking disclosed in the embodiment of the present invention, the province trunk L3 PTN further includes: the two pairs of provincial trunk dispatching L3 devices of the target province correspond to the two pairs of provincial trunk floor L3 devices respectively and are used for dispatching provincial trunk floor L3 devices of each city to go up to a passage of provincial trunk core L3 devices.

Referring to fig. 1, in a conventional networking architecture, a province trunk floor L3 device in each local city directly ascends a core machine room through a wave channel, taking a navian as an example, the navian is the smallest local city, service traffic is very small, but in order to achieve multi-channel protection, at least one side 20G is configured for each core machine room in the navian uplink, and a bandwidth is 80G in total, but an actual traffic is only about 15G, and a bandwidth utilization rate is less than 20%, in order to save wave channel resources, a province trunk new construction 2 is used for configuring a province trunk scheduling device L3, such as a xiaoshan scheduling 1 and a stone bridge scheduling 2 in fig. 1, and the xiaoshan scheduling 2 and the stone bridge scheduling 2 are used for scheduling the province trunk floor L3 in each local city to ascend to a channel of a province trunk core L3, such as the navian, only one side 40G needs to be configured after the completion of the modification, so that the bandwidth is saved by 50%, and the wave channel resources are saved by this measure in the whole province.

In addition, in the PTN networking of the embodiment of the present invention, the access layer and the convergence layer still use single plane bearing by using the current metropolitan area PTN network, so as to save networking construction resources.

Referring to fig. 1, a wireless base station enters a bearer network through a terminal access PTN, and accesses a ring and convergence ring dual-homing network, and is close to the terminal, and the service trend is simple, so that the fault influence surface is small, and a single plane is still adopted for bearing in order to save investment in a convergence layer.

In a traditional biplane networking, only 1 IP is deployed in a base station and an EPC (evolved packet core), risk management and control are performed through a load sharing mode, when a single plane fails, general services are blocked, services of a failure plane are migrated to a second plane through manual modification of a routing table, Zhejiang province is taken as an example, the number of entries in the current routing table reaches 1.2 ten thousand, when a failure occurs, operation and maintenance personnel need to check the addresses of the base stations from the 1.2 ten thousand routes to screen out affected routing sections, then the routing sections are configured to a standby plane, and the routing information is sorted to be finally configured, at least about 1 is needed, the efficiency is low, and in a busy hour process, human errors are easy to occur, and secondary failures are caused. Based on the above, the present invention implements a base station service protection method based on the optimized and adjusted PTN networking disclosed above, which will be described in detail below.

Fig. 2 shows a flowchart of a base station service protection method according to an embodiment of the present invention. The method is implemented based on the optimized adjusted PTN networking disclosed earlier. As shown in fig. 2, the method comprises the steps of:

step S210: two IP addresses are configured for a base station, and the two IP addresses are respectively loaded through a first loading plane and a second loading plane.

The main protection modes in the PTN network are mainly network level protection, including APS technology, FRR technology, and the like, in addition to the original device level protection. The invention adds new service level protection, configures IP1 and IP2, and respectively bears on 2 planes.

In some alternative embodiments, IP1 is carried over a first bearer plane and IP2 is carried over a second bearer plane, and for any IP address, the primary route of that IP address is the first side channel of the bearer plane on which it is located and the backup route of that IP address is the second side channel of the bearer plane on which it is located, even though the primary routes in both bearer planes are on the same side and the backup routes are on the other side. By the method, the network routing can be clearer, and the maintenance and the later-stage fault removal are convenient.

Fig. 3 shows a specific routing plan diagram in the embodiment of the present invention. As shown in fig. 1, the IPs 1 and 2 are respectively carried by the first bearer plane and the second bearer plane, and for a single IP, the primary route completely travels a left-side channel (i.e., a solid line passing through the bearer plane in fig. 3), and the standby route completely travels a right-side channel (i.e., a dashed line passing through the bearer plane in fig. 3), instead of mutually being a primary and a secondary. Correspondingly, when a fault occurs, the fault base station address list provided by the wireless department can be compared, the channel with possible problems can be quickly analyzed, and the fault processing time length is greatly shortened

Step S220: and when any IP address is sensed to be full-blocked, automatically switching to a bearing plane where the other IP address is located to forward the service of the base station.

Specifically, when a fault occurs in the three-layer network, it may cause a full block of a certain IP address, and at this time, the base station double IP double-plane technology is automatically switched to the standby plane, thereby implementing service protection. For a three-layer network, if any bearing plane has a same-route fault, sensing the full resistance of an IP address borne by the bearing plane; or if any pair of L2-to-L3 equipment, city-based ground L3 equipment or provincial-based ground L3 equipment fails, sensing that the IP addresses carried by the carrying plane where the pair of failed equipment is located are fully blocked; or, if any one of the L2-to-L3 devices, the city floor L3 device, or the provincial trunk floor L3 device fails and cannot be switched to the standby device of the failed device, it is sensed that the IP address carried by the bearer plane where the device is located is fully blocked. In addition, for a two-layer network of a convergence layer and below, the structure is simple, the influence surface is small, the positioning is simple when full resistance occurs, the rapid recovery can be realized, only a double-node hanging ring is needed, and after a single node fails, east flow is switched to west flow without influencing services.

Fig. 4 shows a specific node distribution diagram in the embodiment of the present invention. As shown in fig. 4, if a dual node of L3-1 and L3-2 fails (i.e., a pair of device fails), or a single node of L3-1 fails but cannot be switched to L3-2 normally (i.e., a single device fails and cannot be switched to a standby device), or a single plane full block due to the same route, a base station will sense the IP1 full block and then automatically switch to a second bearer plane carrying IP2, the service is recovered to be normal, the whole process does not exceed 1 minute, and the user basically has no sensing, thereby realizing the true dual plane bearer; the whole process is automatically completed, the link of artificial participation in the biplane switching is thoroughly eliminated, the efficiency is obviously improved, and the safety and reliability also realize qualitative leap.

In addition, in fig. 4, three-layer network nodes (L3-1 and L3-2; L3-3 and L3-4; L2/L3-1 and L2/L3-2; L2/L3-3 and L2/L3-4) are mutually protected, normal single-node failure does not affect the service, for example, L3-1 single-node failure, and the service is switched to L3-2 under normal conditions through a VPN-FRR protection technology of the PTN network, and the service is not affected.

In some optional embodiments, when the actual single-side traffic of any local city is lower than the preset value, the provincial trunk scheduling L3 device corresponding to the provincial trunk floor L3 device of the local city is used to schedule the provincial trunk floor L3 device of the local city to uplink to the channel of the provincial trunk core L3 device, so as to save channel resources. For example, in the case of Zhoushan, scheduling is required when the bandwidth utilization corresponding to the actual single-sided traffic is better than 20%.

According to the scheme of the embodiment of the invention, a new IP is additionally distributed to the original base station through a double-IP double-homing scheme, a new service is deployed on a bearing network, a new gateway is deployed at an L2/L3 node, the logical double-plane deployment is realized on a unified physical bearing network, when the abnormal switching of the bearing network per se fails, the LTE base station is switched on a service level, and the normal service can be ensured as long as the basic physical level of the bearing network is not abnormal.

And after obtaining the optimized and adjusted PTN networking and implementing the base station service protection scheme, firstly, under the condition that four protection modes of a device level, a network level, a physical level and a service level in an LTE bearer network are coordinated, a very significant result is obtained, the number of times of batch service quitting of base stations in Zhejiang province caused by device reasons is reduced to 0, the number of times of batch service quitting of base stations caused by optical cable routing is reduced from 19 times in 17 years to 5 times in 18 years, and a plurality of places and cities such as Hangzhou, Wenzhou, Jinhua and Zhoushan have the bearing scheme for the scheme, so that the case of batch service quitting of base stations is avoided; secondly, since unlimited flow package is popularized nationwide, LTE flow is rapidly increased, PTN network pressure is increasing day by day, and a single-plane PTN bearer network has great potential safety hazard; to cope with the surge in traffic and to prevent single plane failures, more and more provinces are beginning to build PTN secondary planes, but always lacks a reasonable automatic switching mechanism, and the switching can only be carried out in a manual mode after the single plane fails, the switching time is too long, the efficiency is low, moreover, errors are easy to occur in the manual switching process, secondary faults are caused, the fault influence range can be further expanded, the service recovery is not facilitated, and the user experience is very poor, the scheme of the invention mainly creates a more comprehensive and automatic protection scheme, the method has the advantages that the capacity expansion of the flow is met, meanwhile, the double-plane bearing network capable of realizing automatic switching is built based on the double-IP double-homing scheme, the switching time is not more than 1 minute, the users basically have no perception in the switching process, the safety factor of the LTE service is greatly improved, the stable development of the 4G network is guaranteed, and the road is explored for the 5G era.

Fig. 5 shows a schematic structural diagram of a base station service protection apparatus provided in an embodiment of the present invention. As shown in fig. 5, the apparatus includes:

a configuration module 510, adapted to configure two IP addresses for a base station, and enable the two IP addresses to be respectively carried by a first carrying plane and a second carrying plane;

the switching module 520 is adapted to automatically switch to a bearer plane where another IP address is located for forwarding the base station service when sensing that any IP address is fully blocked.

In an optional manner, the apparatus further comprises: the setting module is suitable for aiming at any IP address, the main route of the IP address is the first side channel of the bearing plane where the IP address is positioned, and the standby route of the IP address is the second side channel of the bearing plane where the IP address is positioned.

In an optional manner, the apparatus further comprises: and the scheduling module is suitable for scheduling the provincial trunk three-layer equipment in the city to go upwards to a channel of the provincial trunk core three-layer equipment by utilizing the provincial trunk scheduling three-layer equipment corresponding to the provincial trunk three-layer equipment in the city when the actual unilateral flow of any city is lower than a preset value.

In an alternative, the switching module is further adapted to:

if any bearing plane has the same routing fault, sensing the full resistance of the IP address borne by the bearing plane; alternatively, the first and second electrodes may be,

if any pair of equipment with two layers converted into three layers, equipment with three layers falling to the ground in the city or equipment with three layers falling to the ground in the province is in fault, sensing the full resistance of the IP address borne by the bearing plane where the pair of fault equipment is located; alternatively, the first and second electrodes may be,

if any two-layer-to-three-layer device, three-layer device in the city or three-layer device in the province level fails and cannot be switched to the standby device of the failed device, the full block of the IP address borne by the bearing plane where the device is located is sensed.

The embodiment of the invention provides a nonvolatile computer storage medium, wherein the computer storage medium stores at least one executable instruction, and the computer executable instruction can execute the base station service protection method in any method embodiment.

Fig. 6 is a schematic structural diagram of a computing device according to an embodiment of the present invention, and a specific embodiment of the present invention does not limit a specific implementation of the computing device.

As shown in fig. 6, the computing device may include: a processor (processor)602, a communication Interface 604, a memory 606, and a communication bus 608.

Wherein: the processor 602, communication interface 604, and memory 606 communicate with one another via a communication bus 608. A communication interface 604 for communicating with network elements of other devices, such as clients or other servers. The processor 602 is configured to execute the program 610, and may specifically perform relevant steps in the embodiment of the base station service protection method for a computing device.

In particular, program 610 may include program code comprising computer operating instructions.

The processor 602 may be a central processing unit CPU or an application Specific Integrated circuit asic or one or more Integrated circuits configured to implement embodiments of the present invention. The computing device includes one or more processors, which may be the same type of processor, such as one or more CPUs; or may be different types of processors such as one or more CPUs and one or more ASICs.

And a memory 606 for storing a program 610. Memory 606 may comprise high-speed RAM memory, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.

The program 610 may specifically be configured to cause the processor 602 to perform the following operations:

In an alternative, the program 610 causes the processor 602 to:

4 for any IP address, the active route of the IP address is the first side channel of the bearer plane where the IP address is located, and the standby route of the IP address is the second side channel of the bearer plane where the IP address is located.

In an alternative, the program 610 causes the processor 602 to:

and when the actual unilateral flow of any city is lower than a preset value, dispatching the province-trunk three-layer equipment of the city to uplink to a channel of the province-trunk core three-layer equipment by utilizing the province-trunk dispatching three-layer equipment corresponding to the province-trunk three-layer equipment of the city.

In an alternative, the program 610 causes the processor 602 to:

The algorithms or displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. In addition, embodiments of the present invention are not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of embodiments of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best modes of embodiments of the invention.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that is, the claimed embodiments of the invention require more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.

The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functionality of some or all of the components according to embodiments of the present invention. Embodiments of the invention may also be implemented as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing embodiments of the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. Embodiments of the invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names. The steps in the above embodiments should not be construed as limiting the order of execution unless specified otherwise.

Claims

1. A PTN networking comprising: the three province trunk layers PTN, the core layer PTN, the convergence layer and the access layer are hung from top to bottom in sequence;

2. PTN networking according to claim 1, wherein in the first and second bearer planes, a two to three layer device to a terrestrial three layer device is carried by an optical transport network biplane.

3. PTN networking according to claim 1 or 2, wherein the trunk-sparing triple-layer PTN further comprises: and the two pairs of provincial trunk dispatching three-layer equipment of the target province correspond to the two pairs of provincial trunk landing three-layer equipment respectively.

4. A base station service protection method, the method being implemented based on the PTN networking of any one of claims 1 to 3, comprising:

5. The method of claim 4, wherein the method further comprises: for any IP address, the main route of the IP address is the first side channel of the bearing plane where the IP address is located, and the standby route of the IP address is the second side channel of the bearing plane where the IP address is located.

6. The method of claim 4 or 5, wherein the method further comprises: and when the actual unilateral flow of any city is lower than a preset value, dispatching the province-trunk three-layer equipment of the city to uplink to a channel of the province-trunk core three-layer equipment by utilizing the province-trunk dispatching three-layer equipment corresponding to the province-trunk three-layer equipment of the city.

7. The method of claim 4, wherein the sensing of any IP address full block further comprises:

8. A base station traffic protection device, comprising:

9. A computing device, comprising: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;

the memory is used for storing at least one executable instruction, and the executable instruction causes the processor to execute the operation corresponding to the base station service protection method in any one of claims 4-7.

10. A computer storage medium having at least one executable instruction stored therein, the executable instruction causing a processor to perform operations corresponding to the base station traffic protection method according to any one of claims 4 to 7.