CN108574957B

CN108574957B - Intelligent routing inspection server, routing inspection system and method for evolved packet core network equipment

Info

Publication number: CN108574957B
Application number: CN201710144002.1A
Authority: CN
Inventors: 黄宁成
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Group Fujian Co Ltd
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Group Fujian Co Ltd
Priority date: 2017-03-10
Filing date: 2017-03-10
Publication date: 2022-02-18
Anticipated expiration: 2037-03-10
Also published as: CN108574957A

Abstract

The embodiment of the invention provides an intelligent routing inspection server, a routing inspection system and a routing inspection method for evolved packet core network equipment, and relates to the technical field of operation and maintenance of mobile network equipment. The inspection method comprises the following steps: the intelligent routing inspection server of the EPC equipment of the evolved packet core network logs in to-be-inspected EPC network elements, executes configured equipment routing inspection tasks corresponding to network element equipment types on the to-be-inspected EPC network elements according to the equipment types of the to-be-inspected EPC network elements, and generates routing inspection reports of the to-be-inspected EPC network elements according to routing inspection results. The intelligent routing inspection server, the routing inspection system and the routing inspection method for the evolved packet core network equipment in the embodiment of the invention have lower requirements on the technical threshold of maintenance personnel, can finish routing inspection operation without being familiar with operation instructions of all network elements, and have higher routing inspection efficiency and higher safety.

Description

Intelligent routing inspection server, routing inspection system and method for evolved packet core network equipment

Technical Field

The invention relates to the technical field of intelligent operation and maintenance of mobile network equipment, in particular to an intelligent routing inspection server, a routing inspection system and a routing inspection method for evolved packet core network equipment.

Background

With the rapid increase of the number of mobile 4G users, the proportion of the mobile 4G service in china increases. It is significant to ensure that the operation of the evolved Packet core network, i.e. the 4G core network epc (evolved Packet core) device is stable in operation and maintenance work. The maintenance personnel know the running health condition of the equipment at present through regular inspection so as to find problems or hidden dangers in time and correspondingly process the problems or hidden dangers.

The existing EPC equipment intelligent inspection method relies on manual inspection, maintenance personnel manually log in each network element one by one, inspection instructions are manually executed, and results of inspection items are judged according to instruction output. In addition, the network management System also needs to log in an OSS (Operation Support System) network management database to which each network element belongs manually, and the KPI of the network element is obtained by manually executing the access script and is interpreted and analyzed. And finally, summarizing execution results of all inspection operations to obtain an inspection report and processing the problems found in inspection. However, the technical scheme of manual inspection has the following problems:

1. the technical threshold requirement on the operation and maintenance personnel is high, and the operation and maintenance personnel can be trained for a long time. The EPC network elements of the current network have more types, equipment manufacturers also have multiple types, and operation and maintenance personnel need to master the inspection operation instructions and the inspection data acquisition methods of multiple types of equipment at the same time.

For example, EPC network elements in a certain area can be classified into three types, i.e., MME (network access control node), SAEGW (SAE GateWay, two network elements of S-GW and P-GW are combined), and FW (firewall), according to functions. They can be divided into nokia, huawei and Juniper (gambo network) by manufacturers. The existing scheme requires operation and maintenance personnel to simultaneously master three types of equipment and three manufacturers to patrol and examine operation instructions. Meanwhile, the basic data fetching operation capability of the Oracle database is mastered, so that the system can have the capability of executing inspection operation.

2. The working efficiency is low, the consumed time is long, and the accuracy cannot be guaranteed. The manual inspection requires that the types and the number of network elements are large, each network element needs to execute a complete set of inspection instructions once, and the instruction results are judged one by one. This process is very labor-and time-consuming and the manual interpretation patrol result cannot guarantee a 0 fault. Besides logging in the network element to execute the inspection instruction, the maintainer also logs in the OSS database to execute the KPI inquiry and interpretation of the network element, which relates to multi-platform operation and further reduces the efficiency and accuracy of manual operation.

3. Security management and control of the risk. Each inspection involves a plurality of EPC network elements and platforms, and all personnel participating in inspection work need to master account passwords logged in by all equipment, so that the management and control risk of the network element account is increased. In addition, manual execution of routing inspection instructions has the potential risk of mishandling and executing the instructions out of specification.

Disclosure of Invention

Aiming at the defects and the needs of practical application in the prior art, the embodiment of the invention provides the intelligent routing inspection server, the intelligent routing inspection system and the intelligent routing inspection method for the evolved packet core equipment, which have low requirements on technical thresholds of maintenance personnel and can effectively improve the routing inspection efficiency of EPC (evolved packet core) network elements.

In order to achieve the above object, an embodiment of the present invention provides an intelligent routing inspection server for an evolved packet core device, where the server includes:

the routing inspection task configuration module is used for configuring and storing equipment routing inspection tasks of the EPC network element according to the equipment type of the EPC network element of the evolved packet core network to be routed; the equipment inspection task comprises a basic inspection task or comprises a basic inspection task and an operation support system OSS index inspection task;

the basic inspection task refers to an inspection task executed by logging in an EPC network element to be inspected; the OSS index inspection task is an inspection task based on a key performance index KPI of equipment of an EPC network element to be inspected; the basic patrol tasks comprise equipment alarm patrol tasks and alarm patrol result comprehensive processing tasks, or comprise equipment alarm patrol tasks, alarm patrol result comprehensive processing tasks, routing table patrol tasks and routing table check tasks;

the EPC network element access module is used for being linked with the EPC network element to be inspected and logging in the EPC network element to be inspected;

the basic inspection module is used for executing a corresponding basic inspection task on the EPC network element to be inspected according to the equipment type of the EPC network element to be inspected after the EPC network element to be inspected is accessed, and obtaining a first inspection result according to the execution result of the basic inspection task;

the OSS index inspection module is used for acquiring a KPI (key performance indicator) of the EPC (electronic product code) network element to be inspected when the equipment inspection task comprises the OSS index inspection task, and executing the OSS index inspection task corresponding to the equipment type of the EPC network element to be inspected according to the acquired KPI to obtain a second inspection result;

and the inspection report generating module is used for generating an inspection report of the EPC network element to be inspected according to the first inspection result, or generating the inspection report of the EPC network element to be inspected according to the first inspection result and the second inspection result.

The embodiment of the invention also provides an intelligent routing inspection system for the evolved packet core network equipment, which comprises any one of the intelligent routing inspection servers for the evolved packet core network equipment and the EPC network element to be routed.

The embodiment of the invention also provides an intelligent routing inspection method for the equipment of the evolved packet core network, which is suitable for the intelligent routing inspection system for the EPC equipment of the evolved packet core network and comprises the following steps:

the EPC equipment intelligent inspection server logs in an EPC network element of an evolved packet core network to be inspected;

the EPC equipment intelligent inspection server executes a corresponding basic inspection task on the EPC network element to be inspected according to the equipment type of the EPC network element to be inspected, and obtains a first inspection result according to the execution result of the basic inspection task;

when the equipment inspection task comprises an OSS index inspection task, the EPC equipment intelligent inspection server acquires a KPI index of an EPC network element to be inspected, and executes the OSS index inspection task corresponding to the equipment type of the EPC network element to be inspected according to the acquired KPI index to obtain a second inspection result;

and the EPC equipment intelligent inspection server generates an inspection report of the EPC network element to be inspected according to the first inspection result, or generates an inspection report of the EPC network element to be inspected according to the first inspection result and the second inspection result.

In summary, the EPC device intelligent inspection server, the inspection system and the inspection method in the embodiments of the present invention have lower requirements on the technical threshold of the maintenance personnel, the inspection operation can be completed without the maintenance personnel being familiar with the operation instructions of all the network elements, and the inspection efficiency of the EPC network elements is higher and safer. In addition, when the inspection method is implemented, a maintainer does not need to directly log in the network element, which means that the safety problem of the management of the account number and the password of the network element is not involved, and compared with manual inspection, the automatic execution of the intelligent inspection method strictly executes inspection items and does not have misoperation.

Drawings

Other features, objects and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings in which like or similar reference characters refer to the same or similar parts.

Fig. 1 is a schematic structural diagram of an EPC equipment intelligent inspection server in an embodiment of the present invention;

FIG. 2 is a schematic diagram of a basic patrol module according to an embodiment of the present invention;

FIG. 3 is a diagram illustrating an exemplary architecture of an execution result processing unit according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an OSS index polling module in an embodiment of the present invention;

FIG. 5 is a schematic diagram of a basic patrol module according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a basic patrol module according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an EPC device intelligent inspection server according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of an EPC equipment intelligent inspection system in the embodiment of the present invention;

fig. 9 is a schematic flow chart of an EPC device intelligent inspection method according to an embodiment of the present invention;

FIG. 10 is a schematic diagram showing the software modules of the intelligent inspection server of the EPC device in the embodiment;

FIG. 11 is a schematic flow chart of an EPC device intelligent inspection method in the embodiment;

FIG. 12 is a schematic diagram illustrating a polling procedure of each item in the Nokia MME according to the embodiment;

FIG. 13 is a schematic flow chart of a basic patrol algorithm in an embodiment;

FIG. 14 is a schematic flow chart of an OSS index patrol algorithm in an embodiment;

FIG. 15 is a flowchart illustrating an alarm patrol algorithm according to an embodiment;

fig. 16 is a flowchart illustrating a routing table checking algorithm according to an embodiment.

Detailed Description

Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is in no way limited to any specific configuration and algorithm set forth below, but rather covers any modification, replacement or improvement of elements, components or algorithms without departing from the spirit of the invention. In the drawings and the following description, well-known structures and techniques are not shown in order to avoid unnecessarily obscuring the present invention.

Fig. 1 shows a schematic structural diagram of an intelligent routing inspection server for evolved packet core equipment in an embodiment of the present invention, and as can be seen from fig. 1, the intelligent routing inspection server for evolved packet core equipment 1 includes a routing inspection task configuration module 100, an EPC network element access module 200, a basic routing inspection module 300, an OSS index routing inspection module 400, and a routing inspection report generation module 500.

In this embodiment, for convenience of description, in the following description, the intelligent routing inspection server of the evolved packet core device is referred to as an EPC intelligent routing inspection server for short, and the network element of the evolved packet core to be routed is referred to as an EPC network element to be routed for short.

The inspection task configuration module 100 is configured to configure and store an equipment inspection task of an EPC network element according to the equipment type of the EPC network element to be inspected; the equipment inspection task comprises a basic inspection task or comprises a basic inspection task and an operation support system OSS index inspection task;

the basic inspection task refers to an inspection task executed by logging in an EPC network element to be inspected; the OSS index inspection task is an inspection task based on a key performance index KPI of equipment of an EPC network element to be inspected; the basic inspection task comprises an equipment alarm inspection task and an alarm inspection result comprehensive processing task, or the basic inspection task comprises an equipment alarm inspection task, an alarm inspection result comprehensive processing task, a routing table inspection task and a routing table inspection task;

the EPC network element access module 200 is used for being linked with the EPC network element to be inspected and logging in the EPC network element to be inspected;

the basic inspection module 300 is configured to, after accessing the to-be-inspected EPC network element, execute a corresponding basic inspection task on the to-be-inspected EPC network element according to the device type of the to-be-inspected EPC network element, and obtain a first inspection result according to an execution result of the basic inspection task;

the OSS index routing inspection module 400 is configured to, when the equipment routing inspection task includes an operation support system OSS index routing inspection task, obtain an equipment KPI index of the EPC network element to be routed, execute, according to the obtained equipment KPI index, the OSS index routing inspection task corresponding to the equipment category of the EPC network element to be routed, and obtain a second routing inspection result;

the inspection report generating module 500 is configured to generate an inspection report of the EPC network element to be inspected according to the first inspection result, or generate an inspection report of the EPC network element to be inspected according to the first inspection result and the second inspection result. Specifically, when the equipment inspection task includes a basic inspection task and an OSS index inspection task, the inspection report generating module 500 generates an inspection report of the EPC network element to be inspected according to the first inspection result and the second inspection result; when the equipment inspection task does not include an OSS index inspection task, the inspection report generation module 500 generates an inspection report of the EPC network element to be inspected according to the first inspection result.

The intelligent inspection server provided by the embodiment of the invention respectively configures corresponding equipment inspection tasks according to the equipment types of the EPC network element on the basis of combining the actual operation and maintenance working conditions of the EPC network element equipment. When the EPC network element needs to be inspected, the corresponding equipment inspection task (a basic inspection task and an OSS index inspection task) can be executed by remotely logging on the EPC network element to be inspected, so that the automatic inspection of the EPC network element to be inspected can be realized, and an inspection report can be obtained. Compared with the existing manual inspection scheme, the inspection efficiency of the EPC network element is greatly improved, the inspection is automatically performed, and the execution accuracy is better guaranteed.

In this embodiment of the present invention, the device class includes a network element class of an EPC network element and a vendor to which the network element belongs. For example, in a specific embodiment, the network element categories may be divided into three categories, namely a network access control node MME, a SAEGW and a firewall FW. The network element belongs to manufacturers including Nokia, Huacheng and Juniper. If the MME and SAEGW devices use Nokia devices and the firewall FW devices use Huawei and Juniper devices, the device categories include Nokia MME, Nokia SAEGW, Huawei FW and Juniper FW. Correspondingly, the basic inspection tasks comprise a Nokia MME basic inspection task, a Nokia SAEGW basic inspection task, a Huawei FW basic inspection task and a Juniper FW basic inspection task.

In practical application, the basic inspection task is configured according to the equipment type of the EPC network element to be inspected and the actual inspection requirement, and similarly, the OSS index inspection task is configured according to the equipment type of the EPC network element to be inspected and the actual inspection requirement.

In practical application, whether the OSS index routing inspection task is configured for the EPC equipment to be routed is determined by the equipment type of the EPC network element. For example, for the nokia MME network element device, the OSS index patrol task may be configured. And for what is considered as FW network element equipment, KPI index routing inspection is not required, so that an OSS index routing inspection task is not required to be configured.

In one embodiment of the invention, the basic routing inspection task comprises a routing inspection instruction and a routing inspection instruction execution result processing rule. The inspection instruction is determined according to the inspection flow of the specific inspection item of the EPC network element to be inspected, and the inspection instruction execution result processing rule is determined according to the equipment type of the EPC network element to be inspected and the inspection item of the EPC network element to be inspected. The basic patrol module 300 includes a patrol instruction execution unit 310 and an execution result processing unit 320, as shown in fig. 2.

The inspection instruction execution unit 310 is configured to execute the inspection instruction on an EPC network element to be inspected to obtain an inspection instruction execution result;

the execution result processing unit 320 is configured to process the obtained inspection instruction execution result according to the inspection instruction execution result processing rule, so as to obtain a first inspection result.

In a specific embodiment, the patrol instruction execution result processing rule may include a search key and a search result processing rule; accordingly, the execution result processing unit 320 includes a key information retrieval sub-unit 321 and a retrieval result processing sub-unit 322, as shown in fig. 3.

The key information retrieval subunit 321 is configured to perform retrieval according to the retrieval key word in the inspection instruction execution result, and extract information matched with the retrieval key word;

the search result processing subunit 322 is configured to process the extracted information matching the search keyword according to the search result processing rule, so as to obtain a first inspection result.

In one embodiment of the invention, the OSS indicator routing inspection task includes a threshold range of equipment KPI indicators. At this time, correspondingly, the OSS index routing inspection module 400 includes an equipment KPI index obtaining unit 410, a KPI index checking unit 420, and a second routing inspection result generating unit 430, as shown in fig. 4.

The equipment KPI index obtaining unit 410 is configured to link to an OSS database to which an EPC network element to be inspected belongs, and obtain an equipment KPI index of the EPC network element to be inspected from the OSS database;

the KPI indicator checking unit 420 is configured to determine, according to the obtained device KPI indicators, a KPI indicator that does not satisfy the threshold range in the device KPI indicators;

and the second inspection result generating unit 430 is configured to generate a second inspection result according to the determined KPI indicator that does not satisfy the threshold range.

In actual operation, the EPC equipment intelligent inspection server can obtain the equipment KPI index of the EPC network element to be inspected by directly accessing to the operation support system OSS database of the EPC network element to be inspected. The OSS index inspection module 400 is used for inspecting and judging KPI of equipment of EPC network elements to be inspected, inspecting KPI which overflows the threshold range, and generating corresponding inspection results. The threshold range can be determined according to a normal KPI range value of the EPC network element to be inspected, and is generally set according to experience values of operation and maintenance personnel.

In an embodiment of the present invention, for the basic inspection task, besides including conventional inspection items of EPC network elements (for example, for all EPC network elements, the equipment alarm inspection and inspection tasks related to the operation health conditions of the equipment (such as service unit status, hardware load, capacity utilization rate, etc.) are conventional inspection items, and of course, for different categories of EPC network elements, the conventional inspection items may also be different), the basic inspection task further includes the alarm inspection result comprehensive processing task on the basis of the equipment alarm inspection task of EPC network elements. At this time, the basic inspection module 300 includes an equipment alarm inspection unit 330 and an alarm inspection result processing unit 340, as shown in fig. 5.

The equipment alarm patrol unit 330 is configured to execute the equipment alarm patrol task on the EPC network element to be patrolled to obtain current equipment alarm information;

the alarm patrol result processing unit 340 is configured to execute the alarm patrol result comprehensive processing task according to the device alarm information.

Specifically, the alarm patrol result processing unit 340 includes an alarm association subunit 341 and an alarm summarization subunit 342.

The alarm correlation subunit 341 is configured to search for alarm information, in the current device alarm information, that is caused by an opposite-end EPC network element of the EPC network element to be inspected, and insert the device information of the opposite-end EPC network element into the alarm information;

and the alarm summarizing subunit 342 is configured to classify and summarize the current device alarm information and the historical device alarm information of the EPC network element to be inspected.

Therefore, the alarm patrol result comprehensive processing task is a patrol enhancement project realized on the basis of the conventional equipment alarm patrol task, on one hand, the task realizes the classification and summarization of the historical alarm information of the EPC network element, so that the maintenance personnel can integrally know the equipment alarm, and on the other hand, the task realizes the association of the local end alarm information and the opposite end equipment information on the part of the alarm caused by the opposite end network element, thereby being beneficial to the quick positioning of the maintenance personnel on the faults.

In an embodiment of the present invention, for an EPC network element to be inspected including a routing table inspection item in a regular inspection item, the basic inspection task further includes the routing table inspection task, that is, when the basic inspection task further includes a routing table inspection task and a routing table inspection task in addition to the device alarm inspection task and the alarm inspection result comprehensive processing task, the basic inspection module 300 further includes a routing table inspection unit 350 and a routing table inspection unit 360, as shown in fig. 6.

The routing table patrolling unit 350 is configured to execute the routing table patrolling task on the EPC network element to be patrolled to obtain a current patrolling routing table; the current routing table is the current routing table of the EPC network element to be inspected; a routing table typically includes a plurality of routing table entries, each routing table entry typically includes a destination address (for identifying a destination address or a destination network of an IP packet), an interface (an output interface, which indicates an interface from which the IP packet is to be forwarded), and a nexthop (a next hop IP address, which indicates a next router through which the IP packet passes), etc.

The routing table checking unit 360 is configured to execute the routing table checking task according to the current routing table. Specifically, the routing table checking unit 360 includes a routing set linked list generating subunit 361, a routing table checking subunit 362, a newly added routing table entry determining subunit 363, and a lost routing table entry determining subunit 364.

A route set linked list generating subunit 361, configured to store the current patrol route table into the route set linked list, that is, store all route table entries of the current patrol route table into the route set linked list;

a routing table checking subunit 362, configured to determine, one by one, whether each standard routing table entry of the standard routing table of the EPC network element to be inspected exists in the routing set linked list in the standard routing table database, and if so, delete the corresponding routing table entry in the routing set linked list; if not, recording the standard routing table entry in a lost routing table entry set; the standard routing table database is a preset database used for storing a known standard routing table of an EPC network element to be inspected;

a newly added routing table item determining subunit 363, configured to determine, as a newly added route, the routing table items remaining in the routing set linked list after being processed by the routing table checking subunit;

a lost routing table entry determining subunit 364, configured to determine a routing table entry in the lost routing table entry set as a lost routing table entry.

It can be seen that the routing table inspection task is an enhanced routing table inspection item implemented on the basis of a conventional routing table inspection task, and the task implements detection on whether a routing table entry is lost or a new routing table entry is added to an inspected current routing table, so that maintenance personnel can know about changes (new or lost) of the routing table in the current network in real time, and a data basis is provided for identification and positioning of possible routing faults in the routing table. In the actual operation execution of the routing table checking task, if one routing table entry in the standard routing table of the EPC network element to be checked does not exist in the current routing table, the routing table entry is a lost routing table entry, and if one routing table entry exists in the current routing table and does not exist in the standard routing table, the routing table entry is a new routing table entry, namely, the remaining routing table entries in the routing set chain table after checking.

In practical application, the table entries of the standard routing table stored in the standard routing table database can be updated according to the updating condition of the routing table in the network. For example, after each routing table check task is completed, when the maintenance personnel determines that the routing table is not changed due to a routing fault, the routing table entry of the standard routing table database EPC network element may be updated according to the updated routing table entry and the lost routing table entry.

In order to improve the intelligent inspection experience of the EPC network element and improve the UI interaction function, in an embodiment of the present invention, the EPC device intelligent inspection server, that is, the evolved packet core device intelligent inspection server 1 may further include a network element access client module 600, an interface display interaction module 700, an inspection auxiliary module 800, and a system upgrade module 900, as shown in fig. 7.

The network element access client module 600 is used for the link between the inspection server and the EPC network element to be inspected, and the EPC network element access module 200 logs in the EPC network element to be inspected through the network element access client module.

In practical applications, the network element access client module 600 is preferably a remote access client module, and at this time, the network element access client module 600 may include at least one of the following network element access client modules: the system comprises a Telnet client module, an SSH client module and an Oracle network element access client module.

The interface display interaction module 700 is used for displaying the inspection interface and the inspection report and providing an inspection operation interface and an inspection result query interface for the user. And a UI interaction function is provided for the operator, so that the operator can start intelligent inspection operation or inquire inspection operation results and read inspection reports at any time.

The inspection auxiliary module 800 is used for providing an inspection auxiliary function; and the patrol auxiliary function comprises encryption and decryption processing of each module of the patrol server and generation of patrol operation logs. Wherein, it can set according to actual need to specifically patrol which operation in the operation carry out encryption decryption.

The system upgrade module 900 is configured to obtain a system upgrade package of the inspection server, and complete system upgrade.

In an embodiment of the present invention, an intelligent routing inspection system for evolved packet core equipment, that is, an intelligent routing inspection system for EPC equipment is further provided, as shown in fig. 8, where the intelligent routing inspection system for EPC equipment includes any one of the intelligent routing inspection servers 1 for evolved packet core equipment and an EPC network element to be routed.

Fig. 9 is a schematic flowchart illustrating an intelligent routing inspection method for an evolved packet core device according to an embodiment of the present invention, where the intelligent routing inspection method for an evolved packet core device is applicable to an intelligent routing inspection system for an evolved packet core device, and mainly includes the following steps:

step S100: the EPC equipment intelligent inspection server logs in an EPC network element to be inspected;

step S200: the EPC equipment intelligent inspection server executes a corresponding basic inspection task on the EPC network element to be inspected according to the equipment type of the EPC network element to be inspected, and obtains a first inspection result according to the execution result of the basic inspection task;

step S300: when the equipment inspection task comprises an OSS index inspection task, the EPC equipment intelligent inspection server acquires an equipment KPI (key performance indicator) of an EPC network element to be inspected, executes the OSS index inspection task corresponding to the equipment type of the EPC network element to be inspected according to the acquired equipment KPI, and acquires a second inspection result;

step S400: and the EPC equipment intelligent inspection server generates an inspection report of the EPC network element to be inspected according to the first inspection result, or generates an inspection report of the EPC network element to be inspected according to the first inspection result and the second inspection result.

The equipment category comprises a network element category of the EPC network element and a manufacturer of the network element.

It should be noted that, the implementation of step S200 and step S300 is not in a fixed order. In practical applications, only one of the steps S200 and S300 may be executed, both of them may be executed, and both of them may be executed in a predetermined order, or both of them may be executed in parallel.

In one embodiment of the invention, the basic routing inspection task comprises a routing inspection instruction and a routing inspection instruction execution result processing rule.

The EPC equipment intelligent inspection server executes a corresponding basic inspection task on the EPC network element to be inspected according to the equipment type of the EPC network element to be inspected, and obtains a first inspection result according to the execution result of the basic inspection task, and the method comprises the following steps:

the EPC equipment intelligent inspection server executes the inspection instruction on an EPC network element to be inspected to obtain an inspection instruction execution result;

and the EPC equipment intelligent inspection server processes the obtained inspection instruction execution result according to the inspection instruction execution result processing rule to obtain a first inspection result.

And the inspection instruction execution result processing rule is determined according to the equipment type and the inspection item of the EPC network element to be inspected.

In one embodiment, the patrol instruction execution result processing rule comprises a search key and a search result processing rule. At this moment, the EPC device intelligent inspection server processes the obtained inspection instruction execution result according to the inspection instruction execution result processing rule, and obtains a first inspection result, including:

the EPC equipment intelligent inspection server searches in the inspection instruction execution result according to the search keywords and extracts information matched with the search keywords;

and the EPC equipment intelligent inspection server processes the extracted information matched with the retrieval key words according to the retrieval result processing rule to obtain a first inspection result.

In one embodiment of the invention, the OSS indicator routing inspection task includes a threshold range of equipment KPI indicators. At this moment, the EPC equipment intelligent inspection server acquires an equipment KPI index of an EPC network element to be inspected, executes an OSS index inspection task corresponding to the equipment category of the EPC network element to be inspected according to the acquired equipment KPI index, and obtains a second inspection result, which includes:

the EPC equipment intelligent inspection server is linked to an OSS database to which an EPC network element to be inspected belongs, and equipment KPI (Key performance indicator) of the EPC network element to be inspected is obtained from the OSS database;

the EPC equipment intelligent inspection server judges KPI (Key performance indicator) which do not meet the threshold range in KPI (Key performance indicator) according to the obtained KPI;

and the EPC equipment intelligent inspection server generates a second inspection result according to the judged KPI which does not meet the threshold range.

In an embodiment of the present invention, the intelligent EPC equipment inspection server executes a corresponding basic inspection task on an EPC network element to be inspected according to an equipment type of the EPC network element to be inspected, including:

the EPC equipment intelligent inspection server executes the equipment alarm inspection task on the EPC network element to be inspected to obtain current equipment alarm information;

the EPC equipment intelligent inspection server executes the alarm inspection result comprehensive processing task according to the current equipment alarm information, and the method specifically comprises the following steps:

searching alarm information caused by an opposite terminal EPC network element of the EPC network element to be inspected in the current equipment alarm information, and inserting the equipment information of the opposite terminal EPC network element into the alarm information;

and classifying and summarizing the current equipment alarm information and the historical equipment alarm information of the EPC network element to be inspected.

In other words, in this embodiment, the EPC device intelligent inspection server implements execution of the device alarm inspection task and the alarm inspection result comprehensive processing task on the EPC network element to be inspected through the above steps.

In an embodiment of the present invention, when the basic inspection task includes not only an equipment alarm inspection task and an alarm inspection result comprehensive processing task but also a routing table inspection task and a routing table inspection task, the EPC equipment intelligent inspection server executes a corresponding basic inspection task on an EPC network element to be inspected according to an equipment type of the EPC network element to be inspected, further including:

executing the routing table patrol task on the EPC network element to be patrolled to obtain a current patrol routing table;

executing the routing table check task according to the current routing table, which specifically comprises:

storing all routing table entries of the current routing table in a routing set linked list;

judging whether each standard routing table item of the standard routing table of the EPC network element to be inspected exists in the routing set linked list one by one in a standard routing table database, if so, deleting the corresponding routing table item in the routing set linked list, and if not, recording the standard routing table item in a lost routing table item set; the standard routing table database is a preset database used for storing a known standard routing table of an EPC network element to be inspected;

and determining the remaining routing table entries in the routing set linked list as new routing table entries, and determining the routing table entries in the lost routing table entry set as lost routing table entries.

By adopting the intelligent routing inspection server, the routing inspection system and the routing inspection method of the evolved packet core network provided by the embodiment of the invention, the problems in the conventional manual routing inspection mode can be effectively solved. Operation and maintenance personnel do not need to directly log in equipment or require to be familiar with an EPC equipment intelligent inspection operation instruction, all inspection operations can be efficiently executed strictly according to a preset operation plan, and a complete inspection report and an operation log are automatically generated. The scheme provided by the embodiment of the invention has absolute advantages in speed and accuracy of implementation of inspection operation, and in a specific embodiment, the whole network inspection which originally needs 3 hours of manpower can be completed in only 3 minutes by using the scheme provided by the embodiment of the invention.

In order to better understand the intelligent routing inspection server, routing inspection system and routing inspection method for the evolved packet core network device provided in the embodiments of the present invention, the following describes in detail the implementation of the intelligent routing inspection method for the evolved packet core network device according to the embodiments of the present invention.

Examples

In this embodiment, the EPC network element to be inspected includes three major categories, namely MME, SAEGW, and FW, where the MME and the SAEGW devices use nokia devices, and the FW uses hua and Juniper devices, and therefore, the device categories include nokia MME, nokia SAEGW, hua FW, and Juniper FW.

In software implementation, the intelligent inspection server of the EPC device in this embodiment is implemented by using java language oriented to object programming, a hierarchical design idea is adopted in a system architecture, a bottom layer is a bottom API for implementing EPC network element remote login and OSS database access, and an upper layer is a function management module and UI interface presentation for implementing various service logics, supporting functions of the specific inspection function, as shown in table one.

Watch 1

It can be seen that the whole software architecture of the intelligent patrol server is divided into 4 layers:

the lowest layer is a Java virtual machine, namely a Java VM.

The second layer is an API for implementing the network element telnet function, including telnet, SSH client interfaces, and database access interfaces.

The third layer is various EPC network element polling basic function modules and matched network elements and user information management modules.

The top level is the EPC patrol overall schedule and user UI interface presentation.

Based on the system layered architecture, the EPC device intelligent inspection server adopts a software modularization implementation manner, and the software module of the EPC device intelligent inspection server of the present embodiment is as shown in fig. 10, and specifically includes:

the Telnet client module, the SSH client module and the Oracle client module are the network element access client module, belong to a bottom layer module of a software architecture, and provide an API for EPC equipment remote access and instruction execution for an upper layer patrol module.

EPC network element inspection modules (a basic inspection module and an OSS index inspection module) are upper core modules of the system. In this embodiment, according to the type and manufacturer of the inspection equipment, the EPC network element inspection module may be further divided into four sub-modules: the system comprises a Nokia MME polling module, a Nokia SAEGW polling module, a Huawei FW polling module and a Junier FW polling module, wherein the four sub-modules are respectively used for polling four types of EPC network elements.

The log file processing module, the patrol report processing module and the network element encryption and decryption module belong to patrol auxiliary modules, and have the main functions of assisting the patrol module in password protection, generating an operation log and a patrol report in the process of executing a patrol plan.

The user UI module and the index chart presenting module correspond to the interface display interaction module and provide a graphical interface for user inspection operation and index query.

The software version upgrading module provides an on-line upgrading function of the polling software, can realize the upgrading iteration of the system function and is unified with the software version of a maintainer.

In this embodiment, an execution flow of the EPC polling method is shown in fig. 11. After a user logs in a software main interface, an EPC button (a button for starting EPC equipment intelligent inspection) is clicked, an inspection operation plan built in software is started, an MME inspection plan, an SAEGW inspection plan, a Huacheng FW inspection plan and a Juniper FW inspection plan are sequentially executed according to the types of network elements after the inspection operation plan is started, and an operation log and an inspection project execution result are stored in real time in the execution process of each network element inspection plan.

It should be noted that, in this embodiment, the execution flow of the inspection method shown in fig. 11 is only one implementation, and one or some inspection plans that need to be executed may be started as needed, and an implementation order of multiple inspection plans may be set.

In this embodiment, the basic polling task and the OSS index polling task of the nokia MME are shown in table two. The Nokia MME basic inspection tasks comprise alarm inspection, computer unit state inspection, hard disk unit state inspection, system capacity and utilization rate inspection, equipment measurement inspection and ticket item inspection, and also comprise an alarm inspection algorithm, namely an alarm inspection result comprehensive processing task (realizing the alarm information classification and important alarm correlation function). The OSS index inspection task comprises the inspection and study and judgment of KPI indexes such as network element attachment success rate ATTACH, TAU success rate, authentication success rate, CPU load, MME switching, DNS inquiry, paging, server request and the like.

Watch two

The basic inspection task and the OSS index inspection task of the Nokia SAEGW are shown in the third table. The Nokia SAEGW basic inspection task comprises SAEGW alarm inspection, management object MO state inspection and system capacity and utilization rate inspection, and also comprises an alarm inspection algorithm. The OSS index inspection task comprises the inspection of KPI indexes such as default load, CPU load, an IP address pool, APN and the like.

Watch III

Compared with Nokia MME and Nokia SAEGW, the FW basic inspection tasks have less OSS index inspection tasks, and comprise alarm inspection, plate state inspection, CPU and memory utilization rate inspection, double-computer hot standby protocol HRP state inspection, interface inspection and session data inspection, wherein the FW basic inspection tasks are shown in the fourth table.

Watch four

Juniper FW basic inspection tasks are shown in table five and comprise alarm inspection, routing table inspection, CPU and memory utilization rate inspection, active/standby state inspection, interface bandwidth utilization rate inspection, session data inspection, alarm inspection algorithm and routing table inspection. In addition to the conventional routing inspection project, the Juniper FW is additionally provided with an alarm inspection algorithm and routing table inspection.

Watch five

According to the basic routing inspection task/OSS index routing inspection task configured for each EPC network element, after the development of a functional module of a routing inspection server is completed, the routing inspection server logs on the EPC network element to be subjected to routing inspection, each network element sequentially executes routing inspection items (routing inspection items included in the basic routing inspection task/OSS index routing inspection task) according to respective routing inspection plans, each network element in the maintenance range of each routing inspection item is executed once, taking an MME routing inspection plan as an example, in the embodiment, the MME routing inspection plan includes 7 routing inspection items, 8 MMEs in the current maintenance range of each item are executed once, and the specific routing inspection flow is shown in FIG. 12. After the inspection of all the network elements is completed, an inspection report is automatically generated in a gathering mode, and what maintenance personnel need to do is to review the finally generated inspection report.

The following describes the execution flows of the basic polling tasks of the four EPC network elements and the execution flows of the OSS index polling tasks of the nokia MME and the nokia SAEGW in this embodiment.

In actual operation, the execution of various equipment inspection plans of the EPC is realized by corresponding algorithms, and inspection items of various network elements can be divided into two types: one type is to remotely log on EPC network element equipment through Telnet or SSH to execute an inspection instruction and decode and analyze an instruction result, namely the realization of a basic inspection task; and the other type is to be linked to an equipment attributive OSS database to read equipment KPI indexes and analyze and judge the equipment KPI indexes, namely to realize an OSS index inspection task. In this embodiment, the patrol server implements the basic patrol task by the following basic patrol algorithm (the following alarm patrol algorithm and routing table check algorithm are enhanced algorithms added to the basic patrol algorithm on the basis of conventional patrol items), and implements the OSS index patrol task by the following OSS index patrol algorithm.

Basic routing inspection algorithm

The algorithm is a basic algorithm for remote registration of the EPC network element to patrol items, is used for registering the EPC network element to execute a patrol instruction and analyzing and judging instruction output, and the specific algorithm implementation flow is shown in FIG. 13 and comprises the following steps:

and the inspection server remotely logs in an EPC network element to be inspected, and then enters a man-machine interaction interface. In the embodiment, the instruction execution result is stored in the memory in a line-by-line manner, then the instruction execution result is read line-by-line manner, each line of execution result is matched by keywords, if the instruction execution result is matched with preset keywords, matched key information is extracted and processed to obtain the inspection result until the instruction execution result of all lines is matched with the keywords, all extracted matching information is analyzed and judged according to configured processing rules to obtain the inspection result and output the inspection result.

The principle of the basic inspection algorithm is to scan the EPC network element remote inspection instruction output line by line, extract, analyze and judge the key information output by the instruction by using keywords, and then form the report output of the inspection instruction. As for how to extract the key information and how to analyze and judge the meaning, different types of EPC network elements and different routing inspection instruction items are different. Taking "state patrol of computer UNIT" in MME patrol plan as an example, the algorithm considers that from the output row where the key character of "UNIT" appears to the row where the first character is empty, the third character of all rows in between represents the working state of the computer UNIT, and the program will extract the character and make a judgment on the operating state of the UNIT.

OSS index patrol algorithm

The OSS index inspection algorithm is a basic algorithm of all EPC network element KPI index inspection projects, and the main principle is to connect an OSS database to which a network manager belongs, extract network element KPI index information by executing a corresponding index SQL access script, and then study and judge the KPI indexes one by one. Different network elements, different KPI indicators, SQL scripts to be executed by the algorithm, and criteria for judging whether the device is operating normally are different, and a specific algorithm flow is shown in fig. 14.

Alarm patrol algorithm

The algorithm realizes two functions on the basis of a basic routing inspection algorithm: the device history alarm classification and summarization can enable maintenance personnel to integrally know the device alarm; another method for realizing association between local terminal alarm information and opposite terminal device information (associated network element data) for alarms caused by partial opposite terminal network elements is helpful for maintenance personnel to quickly locate such faults, and a specific flow is shown in fig. 15.

Routing table checking algorithm

The algorithm function is to realize the function of checking whether the Juniper FW current routing table has lost routing or adds new routing. The algorithm principle is that a standard routing table is stored in an Oracle database, namely the standard routing table database, then a basic routing inspection algorithm is used for extracting routing table items of a Juniper FW current routing table one by one and storing the routing table items in an aggregate linked list, then a program extracts the standard routing table stored in the Oracle database by executing an SQL script, for each routing table item of the standard routing table, the routing table item is searched in the aggregate linked list of the current routing table one by one, if the routing table item can be found, the routing table item is deleted in the aggregate linked list, if the routing table item cannot be found, the routing table item is recorded, and finally the routing table item in the aggregate linked list and the recorded routing table item are respectively a newly added routing table item and a lost routing table item and are written into an inspection output, and the specific flow is shown in figure 16.

In the embodiment, based on the EPC network element inspection scheme of the EPC equipment intelligent inspection system, in actual implementation, an object-oriented programming java language is adopted for implementation, a complete EPC equipment intelligent inspection operation plan is firstly formulated, a special implementation algorithm is designed for multi-manufacturer and multi-category equipment inspection projects related to the operation plan, all network element login operations, inspection algorithm execution and OSS index reading analysis are all encapsulated in special objects, and the special inspection plan program is used for calling and executing, so that the high efficiency, reliability and safety of inspection plan execution can be ensured.

The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.

The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. For example, the algorithms described in the specific embodiments may be modified without departing from the basic spirit of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. An intelligent routing inspection server for evolved packet core network equipment, comprising:

the inspection report generating module is used for generating an inspection report of the EPC network element to be inspected according to the first inspection result, or generating the inspection report of the EPC network element to be inspected according to the first inspection result and the second inspection result;

the basic inspection task comprises an inspection instruction and an inspection instruction execution result processing rule;

the module is patrolled and examined to basis includes:

the inspection instruction execution unit is used for executing the inspection instruction on the EPC network element to be inspected to obtain an inspection instruction execution result;

the execution result processing unit is used for processing the obtained inspection instruction execution result according to the inspection instruction execution result processing rule to obtain a first inspection result;

the inspection instruction execution result processing rule comprises a retrieval keyword and a retrieval result processing rule;

the execution result processing unit includes:

the key information retrieval subunit is used for retrieving in the inspection instruction execution result according to the retrieval key words and extracting information matched with the retrieval key words;

and the retrieval result processing subunit is used for processing the extracted information matched with the retrieval keyword according to the retrieval result processing rule to obtain a first inspection result.

2. The intelligent routing inspection server of Evolved Packet Core (EPC) network equipment according to claim 1, wherein the equipment categories include a network element category of EPC network elements and a vendor to which the network elements belong.

3. The intelligent routing inspection server of the Evolved Packet Core (EPC) equipment according to claim 1, wherein the routing inspection instruction execution result processing rule is determined according to the equipment type of the EPC network element to be routed and the routing inspection item of the EPC network element to be routed.

4. The intelligent routing inspection server of evolved packet core (EPS) network equipment according to claim 1, wherein the OSS index routing inspection task includes a threshold range of equipment KPI indexes;

the OSS index inspection module comprises:

the equipment KPI acquisition unit is used for linking to an OSS database to which the EPC network element to be inspected belongs and acquiring the equipment KPI of the EPC network element to be inspected from the OSS database;

the KPI checking unit is used for judging KPI which do not meet the threshold range in the KPI indexes according to the acquired KPI indexes;

and the second inspection result generating unit is used for generating a second inspection result according to the judged KPI which does not meet the threshold range.

5. The evolved packet core network device intelligent inspection server according to any of claims 1 to 4, wherein the base inspection module comprises:

the equipment alarm patrol unit is used for executing the equipment alarm patrol task on the EPC network element to be patrolled to obtain current equipment alarm information;

the alarm patrol result processing unit is used for executing the alarm patrol result comprehensive processing task according to the current equipment alarm information;

the alarm patrol result processing unit includes:

the warning association subunit is used for searching the warning information caused by the opposite-end EPC network element of the EPC network element to be inspected in the current equipment warning information and inserting the equipment information of the opposite-end EPC network element into the warning information;

and the alarm summarizing subunit is used for classifying and summarizing the current equipment alarm information and the historical equipment alarm information of the EPC network element to be inspected.

6. The intelligent routing inspection server of evolved packet core (EPS) equipment according to any one of claims 1 to 4, wherein when the basic routing inspection task comprises a routing table inspection task and a routing table inspection task, the basic routing inspection module comprises:

the routing table patrolling unit is used for executing the routing table patrolling task on the EPC network element to be patrolled to obtain the current patrolling routing table;

a routing table checking unit, configured to execute the routing table checking task according to the current routing table for routing inspection;

the routing table checking unit includes:

a routing set linked list generating subunit, configured to store all routing table entries of the current patrol routing table in the routing set linked list;

a routing table checking subunit, configured to determine, one by one, whether each standard routing table entry of the standard routing table of the EPC network element to be inspected exists in the routing set linked list in the standard routing table database, and if so, delete the corresponding routing table entry in the routing set linked list; if not, recording the standard routing table entry into a lost routing table entry set; the standard routing table database is a preset database used for storing a known standard routing table of an EPC network element to be inspected;

a newly added routing table item determining subunit, configured to determine, as the newly added routing table item of the EPC network element to be inspected, the remaining routing table items in the routing set chain table processed by the routing table inspecting subunit;

and the lost routing table entry determining subunit is configured to determine a routing table entry in the lost routing table entry set as a lost routing table entry of the EPC network element to be inspected.

7. The intelligent routing inspection server of evolved packet core network equipment according to any of claims 1 to 4, wherein the routing inspection server further comprises:

the network element access client module is used for remotely linking the inspection server and the EPC network element to be inspected;

the EPC network element access module is also used for remotely logging in the EPC network element to be inspected through the network element access client module;

the interface display interaction module is used for displaying an inspection interface and an inspection report of the EPC equipment and providing an inspection operation interface and an inspection result query interface for a user;

the inspection auxiliary module is used for providing an inspection auxiliary function; the patrol auxiliary function comprises encryption and decryption processing of each module of the patrol server and generation of a patrol operation log;

and the system upgrading module is used for acquiring a system upgrading package of the inspection server and finishing system upgrading.

8. An intelligent routing inspection system for evolved packet core (EPS) equipment, which is characterized by comprising the EPC network element to be routed and the intelligent routing inspection server for the EPS equipment as claimed in any one of claims 1 to 7.

9. An intelligent routing inspection method for evolved packet core network equipment, which is applied to the intelligent routing inspection system for evolved packet core network equipment according to claim 8, and is characterized by comprising the following steps:

the EPC equipment intelligent inspection server logs in an EPC network element to be inspected;

the EPC equipment intelligent inspection server generates an inspection report of the EPC network element to be inspected according to the first inspection result, or generates an inspection report of the EPC network element to be inspected according to the first inspection result and the second inspection result;

the EPC equipment intelligent inspection server executes a corresponding basic inspection task on an EPC network element to be inspected according to the equipment type of the EPC network element to be inspected, and obtains a first inspection result according to the execution result of the basic inspection task, and the method comprises the following steps:

the EPC equipment intelligent inspection server processes the obtained inspection instruction execution result according to the inspection instruction execution result processing rule to obtain a first inspection result;

the EPC equipment intelligent inspection server processes the obtained inspection instruction execution result according to the inspection instruction execution result processing rule to obtain a first inspection result, and the method comprises the following steps:

10. The intelligent routing inspection method for the Evolved Packet Core (EPC) network equipment according to claim 9, wherein the equipment category includes a network element category of an EPC network element and a vendor to which the network element belongs.

11. The intelligent routing inspection method for the Evolved Packet Core (EPC) equipment according to claim 9, wherein the routing inspection instruction execution result processing rule is determined according to the equipment type of the EPC network element to be routed and the routing inspection item of the EPC network element to be routed.

12. The intelligent routing inspection method for equipment of an evolved packet core (EPS) network according to claim 9, wherein the OSS index routing inspection task includes a threshold range of equipment KPI indexes;

the EPC equipment intelligent inspection server acquires an equipment KPI index of an EPC network element to be inspected, executes an OSS index inspection task corresponding to the equipment category of the EPC network element to be inspected according to the acquired equipment KPI index, and obtains a second inspection result, wherein the second inspection result comprises the following steps:

13. The intelligent routing inspection method for the Evolved Packet Core (EPC) equipment according to any one of claims 9 through 12, wherein the intelligent routing inspection server for the EPC equipment executes a corresponding basic routing inspection task on the EPC network element to be inspected according to the equipment type of the EPC network element to be inspected, including:

the EPC equipment intelligent inspection server executes an equipment alarm inspection task on an EPC network element to be inspected to obtain current equipment alarm information;

the EPC equipment intelligent inspection server executes an alarm inspection result comprehensive processing task according to the current equipment alarm information, and the task comprises the following steps: searching alarm information caused by an opposite terminal EPC network element of the EPC network element to be inspected in the current equipment alarm information, and inserting the equipment information of the opposite terminal EPC network element into the alarm information;

14. The intelligent routing inspection method for the Evolved Packet Core (EPC) network devices according to any one of claims 9 to 12, wherein when the basic routing inspection task includes a routing table inspection task and a routing table inspection task, the intelligent routing inspection server performs a corresponding basic routing inspection task on an EPC network element to be inspected according to a device type of the EPC network element to be inspected, further comprising:

executing the routing table check task according to the current patrol routing table, wherein the process comprises the following steps:

judging whether each standard routing table item of the standard routing table of the EPC network element to be inspected exists in the routing set linked list one by one in a standard routing table database, if so, deleting the corresponding routing table item in the routing set linked list; if not, recording the standard routing table entry into a lost routing table entry set; the standard routing table database is a preset database used for storing a known standard routing table of an EPC network element to be inspected;

and determining the remaining routing table entries in the routing set linked list as the newly-added routing table entries of the EPC network element to be inspected, and determining the routing table entries in the lost routing table entry set as the lost routing table entries of the EPC network element to be inspected.