CN102143012B - Service-based Internet protocol (IP) bearer network monitoring method and IP quality of service monitoring equipment - Google Patents

Abstract

The invention provides a service-based IP bearer network monitoring method and IP service quality monitoring equipment. The method includes acquiring a source IP address and a destination IP address of a service; acquiring information on an IP bearer network element between the source IP address and the destination IP address; acquiring IPQoS information and routing table information of the IP bearer network element ; According to the IP QoS information and routing table information, obtain the corresponding relationship diagram between the service and the quality of the IP bearer network, and the connection topology diagram of the service bearer path, so as to realize the monitoring of the IP bearer network. The embodiment of the present invention can link the core network and the bearer network to realize comprehensive monitoring of the quality of the IP bearer network for services.

Description

Service-based IP bearer network monitoring method and IP service quality monitoring equipment

technical field

The invention relates to network communication technology, in particular to a service-based IP bearer network monitoring method and IP service quality monitoring equipment.

Background technique

With the popularization of Internet (Internet Protocol, IP) technology in the field of telecommunications, most of the world's telecommunications operators have gradually carried out the transformation of the whole network with all IP (ALL IP). All IP can not only greatly reduce the network construction cost of operators, but also can more conveniently deploy new telecommunication service content, provide more network bandwidth, and provide telecommunication services for more end customers. However, the ALL IP network is a fully interconnected network. From the perspective of the entire network, the IP network is more complicated than the traditional Time Division Multiplexing (TDM) network. Once a node in the IP network If a fault occurs, if there is no clear IP network topology diagram of the entire network, it will be difficult to quickly locate the problem; and because the IP network is a best-effort network, it cannot provide the reliable IP network service quality (IP Quality of Service, IP QoS), so it cannot provide high-quality telecommunications business services like TDM networks.

The quality evaluation of the existing IP bearer network is generally carried out from the following two aspects: on the one hand, judge the quality of the IP bearer network from the perspective of telecommunication services, such as making a call, if the call quality is good, then the quality of the IP bearer network is also It must be good; on the other hand, by managing each device node of the IP bearer network, such as counting the traffic of each device node, IP QoS (packet loss, delay, jitter), and other IP-related indicators such as packet error rate, through Comprehensive analysis of these indicators is used to judge the quality status of the IP bearer network.

During the process of realizing the present invention, the inventor found at least the following problems in the prior art: the IP bearer network corresponding to the specific telecommunication services cannot be fully monitored.

Contents of the invention

Embodiments of the present invention provide a service-based IP bearer network monitoring method and IP service quality monitoring equipment to solve the problem in the prior art that the IP bearer network corresponding to a specific telecommunication service cannot be comprehensively monitored.

The embodiment of the present invention provides a service-based IP bearer network monitoring method, including:

Obtain the source IP address and destination IP address of the service;

Obtain information about network elements of the IP bearer network between the source IP address and the destination IP address;

Obtain IP network quality of service IP QoS information and routing table information of the IP bearer network network element;

According to the IP QoS information and routing table information, obtain the corresponding relationship diagram between the service and the quality of the IP bearer network, and the connection topology diagram of the service bearer path, so as to realize the monitoring of the IP bearer network.

An embodiment of the present invention provides an IP service quality monitoring device, including:

The address obtaining module is used to obtain the source IP address and the destination IP address of the service;

A network element information obtaining module, configured to obtain information on network elements of the IP bearer network between the source IP address and the destination IP address;

A quality information acquisition module, configured to acquire IP QoS information and routing table information of the IP bearer network element;

The monitoring module is used to obtain the corresponding relationship diagram between the service and the quality of the IP bearer network and the connection topology diagram of the service bearer path according to the IP QoS information and the routing table information, so as to realize the monitoring of the IP bearer network.

It can be seen from the above technical solution that, in the embodiment of the present invention, by obtaining the source IP address and destination IP address of the service, and obtaining the information of the IP bearer network element between the end-to-end addresses, it can be determined according to the information of the IP bearer network element For the quality of the IP bearer network corresponding to the service, the topology map corresponding to the service can be obtained by obtaining the routing table information, so as to realize the comprehensive monitoring of the IP bearer network based on the service.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is the schematic flow chart of the method of the first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a system corresponding to the second embodiment of the present invention;

3 is a schematic flow diagram of a method according to a second embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a system corresponding to a third embodiment of the present invention;

5 is a schematic flow chart of a method according to a third embodiment of the present invention;

Fig. 6 is a schematic diagram of the device structure of the fourth embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Fig. 1 is a schematic flow chart of the method of the first embodiment of the present invention, including:

Step 11: The IP service quality monitoring device obtains the source IP address and the destination IP address of the service;

Step 12: The IP service quality monitoring device obtains the information of the IP bearer network element between the source IP address and the destination IP address;

Step 13: The IP service quality monitoring device obtains the IP QoS information and routing table information of the IP bearer network element;

Step 14: According to the IP QoS information and routing table information, the IP service quality monitoring device obtains the corresponding relationship diagram between the service and the quality of the IP bearer network, and the connection topology diagram of the service bearer path, so as to realize the monitoring of the IP bearer network.

In this embodiment, by obtaining the source IP address and destination IP address of the service, and obtaining the information of the IP bearer network element between the end-to-end addresses, the linkage between the core network and the bearer network can be realized. According to the information of the IP bearer network element Determine the quality of the IP bearer network corresponding to the service and the topology map corresponding to the service, and realize the comprehensive monitoring of the IP bearer network based on the service.

FIG. 2 is a schematic diagram of the system structure corresponding to the second embodiment of the present invention. In this embodiment, the IP service quality monitoring equipment is independently installed outside the network elements of the core network and the network elements of the IP bearer network. Referring to FIG. 2, the The system includes an IP service quality monitoring device 21 , a core network 22 and an IP bearer network 23 . Among them, the IP bearer network 23 is mainly responsible for the transmission of IP packets, and does not pay attention to the specific content of the packets, nor does it pay attention to the IPQoS quality of each telecommunications service. There will be IPQoS and flow rates for each IP bearer network device node and fixed IP bearer path. and other information; the core network 22 includes a media gateway (Media Gateway, MGW) 221 and a mobile switching center (Mobile Switching Centre, MSC) 222 (represented by Server in the figure), wherein, the MSC (Server) 222 controls and reports relevant to the telecommunication service MGW 221 controls messages related to media streams, and both MGW 221 and MSC 222 have IP interfaces and IP bearer networks for connection. The IP service quality monitoring device 21 is connected to the core network through the maintenance network inside the telecommunications, obtains the IP information related to the service from the core network equipment, and then sends the IP information related to the service to the IP bearer network through the IP interface of the network element of the core network. The IP QoS information collection command can analyze the transmission quality of telecom services on the IP bearer network in real time, and automatically analyze the paths with IP faults or sub-health. A human-computer interaction interface is provided for the operation and maintenance personnel to know the business permission quality information in a timely manner.

Fig. 3 is a schematic flow chart of a method according to a second embodiment of the present invention, including:

Step 301: The network element of the core network sends the end-to-end IP address of the telecommunication service to the IP service quality monitoring device.

Wherein, this embodiment takes the end-to-end IP address as an example of the media flow IP address pair of the source and destination of the service. It can be understood that when the core network element needs to obtain the IP QoS of a call during the signaling establishment process information, and the signaling IP address pair of the source and destination of the call can also be sent to the IP service quality monitoring device.

Step 302: The IP service quality monitoring device issues a path information collection command to a network element of the core network, where the path information collection command is used to collect bearer path information of the telecommunication service.

For example, the IP service quality monitoring device processes the request from the network element of the core network, and issues the query signaling and the bearer path of the IP address pair of the media stream on the IP bearer network.

Step 303: The network element of the core network forwards the path information collection command to the network element of the IP bearer network.

For example, through the IP multi-level proxy and forwarding technology, the IP interface of the core network and the IP bearer network is used to send out.

Step 304: The IP bearer network element feeds back the end-to-end IP bearer path information to the core network element.

For example, when the network element of the IP bearer network receives the information query command from the IP service quality monitoring device, it uses the source and destination IP address pair information related to the call, and the IP bearer network queries the IP addresses passed between the source and destination IP addresses. The information of the network elements of the bearer network, for example, query the IP addresses of the network elements of the IP bearer network between the end-to-end IP address pairs corresponding to the service step by step according to the pre-configured routing table information in the network elements of the bearer network.

Step 305: The core network element forwards the end-to-end IP bearer path information to the IP service quality monitoring device.

For example, the network element of the core network uses the IP forwarding technology to feed back the information queried by the IP bearer network to the IP service quality monitoring device. So far, the IP service quality monitoring device can obtain the routing table information corresponding to the service, and then can draw a topology diagram according to the routing table information.

Step 306: The IP service quality monitoring device issues an IP QoS information collection command to the core network element, and the IP QoS information collection command is used to collect the IPQoS information of the IP bearer network device node corresponding to the path information.

By sending the IP QoS collection command to the IP bearer network device node, the quality status of each segment of the IP bearer path can be obtained in detail.

Step 307: The core network element forwards the IP QoS information collection command to the IP bearer network element.

For example, the IP multi-level proxy and forwarding technology is used to send the collection command to the IP bearer network device node.

Step 308: The network element of the IP bearer network feeds back the IP QoS information to the network element of the core network.

For example, the IP bearer network equipment node corresponding to the IP QoS collection command feeds back the IP QoS information collected by its own equipment, including information such as IP routing, IP traffic, packet loss, delay, jitter, and error packets.

Step 309: The core network element forwards the IP QoS information to the IP service quality monitoring device.

For example, the IP forwarding technology is used to feed back the IP QoS information queried by the IP bearer network to the IP service quality monitoring equipment.

Step 310: The IP service quality monitoring device performs statistical analysis on the IP QoS information fed back by the network elements of the IP bearer network, and obtains the quality status of the IP bearer network related to the telecommunication service.

Step 311: The IP service quality monitoring device sends a test message to the network element of the IP bearer network through the network element of the core network for locating the quality problem.

For example, if the IP service quality monitoring device feeds back a problem with the IP QoS information fed back by a certain segment or a certain device node, such as the packet loss rate exceeds the normal threshold, it will independently start to locate the IP bearer path of this segment or a single IP bearer node, and send the fault Locating the detection message, such as encapsulating the loopback test message through the ICMP protocol, sending it to the problematic IP device node or the device nodes at both ends of the IP path, and analyzing the returned message to obtain the detailed cause of the problem; at the same time, it can also pass SNMP The protocol encapsulates the IP detection message to obtain the network port status of the problematic device node, the detailed information of IP QoS, error packet, and message rewriting, so as to obtain detailed positioning information.

Step 312: The network element of the IP bearer network feeds back the test result message to the IP service quality monitoring device through the network element of the core network.

Afterwards, the IP service quality monitoring device comprehensively analyzes the test packets fed back by problematic nodes or paths in the IP bearer network, and outputs a problem location report. For example, analyze whether the node port is normal, whether the traffic is normal, whether there is an error packet, and whether the IP QoS exceeds the threshold.

In this embodiment, by obtaining the source IP address and destination IP address of the service, and obtaining the information of the IP bearer network element between the end-to-end addresses, the IP bearer network corresponding to the service can be determined according to the information of the IP bearer network element quality. In this embodiment, the IP service quality monitoring equipment is placed outside the existing network elements, which can reduce changes to the existing network elements.

FIG. 4 is a schematic diagram of the system structure corresponding to the third embodiment of the present invention. In this embodiment, an IP service quality monitoring device is set in a core network element as an example. Referring to FIG. 4, the system of this embodiment includes an IP service quality monitoring device 41 , a core network 42 and an IP bearer network 43. Wherein, the core network 42 includes an MGW 421 and a mobile switching center (MSC) 422, and the IP service quality monitoring device 41 is located inside the core network 42, for example, embedded in the MGW 421 and the MSC 422.

Fig. 5 is a schematic flow chart of a method according to a third embodiment of the present invention, including:

Step 501: The IP service quality monitoring device embedded in the network element of the core network sends a path information collection command to the network element of the IP bearer network, and the path information collection command is used to collect bearer path information of the telecommunication service.

Step 502: The IP bearer network element feeds back the end-to-end IP bearer path information to the IP service quality monitoring device embedded in the core network element.

For example, when the network element of the IP bearer network receives the information query command from the IP service quality monitoring device, it uses the source and destination IP address pair information related to the call, and the IP bearer network queries the IP addresses passed between the source and destination IP addresses. Device NE node information.

Step 503: The IP service quality monitoring device embedded in the core network element sends an IP QoS information collection command to the IP bearer network element, and the IP QoS information collection command is used to collect the IP bearer network device node corresponding to the path information IP QoS information.

By sending the IP QoS information collection command to the IP bearer network device node, the quality status of each segment of the IP bearer path can be obtained in detail.

Step 504: The network element of the IP bearer network feeds back the IP QoS information to the IP service quality monitoring device embedded in the network element of the core network.

For example, the IP bearer network equipment node corresponding to the IP QoS information collection command feeds back the IP QoS information collected by its own equipment, including information such as IP routing, IP traffic, packet loss, delay, jitter, and error packets.

Step 505: The IP service quality monitoring device embedded in the network element of the core network performs statistical analysis on the IP QoS information fed back by the network element of the IP bearer network, and obtains the quality status of the IP bearer network related to the telecommunication service.

Step 506: The IP service quality monitoring device embedded in the network element of the core network sends a test message to the network element of the IP bearer network for locating quality problems.

For example, if the IP service quality monitoring device feeds back a problem with the IP QoS information fed back by a certain segment or a certain device node, such as the packet loss rate exceeds the normal threshold, it will independently start to locate the IP bearer path of this segment or a single IP bearer node, and send the fault Locating the detection message, such as encapsulating the loopback test message through the ICMP protocol, sending it to the problematic IP device node or the device nodes at both ends of the IP path, and analyzing the returned message to obtain the detailed cause of the problem; at the same time, it can also pass SNMP The protocol encapsulates the IP detection message to obtain the network port status of the problematic device node, the detailed information of IP QoS, error packet, and message rewriting, so as to obtain detailed positioning information.

Step 507: The network element of the IP bearer network feeds back the test result message to the IP service quality monitoring device embedded in the network element of the core network.

For example, the IP quality monitoring module comprehensively analyzes the test packets fed back by problem nodes or paths in the IP bearer network, and outputs a problem location report.

In this embodiment, by obtaining the source IP address and destination IP address of the service, and obtaining the information of the IP bearer network element between the end-to-end addresses, the IP bearer network corresponding to the service can be determined according to the information of the IP bearer network element quality. In this embodiment, the IP service quality monitoring device is embedded in the network element of the core network, which can reduce changes to the existing system architecture.

In the foregoing embodiments, the IP service quality monitoring device is set independently and directly communicates with the network element of the core network, or is embedded in the network element of the core network as an example. It can be understood that the location of the IP service quality monitoring device is not limited to the above-mentioned , for example, may also be located between the bearer network and the core network, independently set up and directly communicate with the bearer network, and be embedded in a network element of the bearer network.

6 is a schematic diagram of the device structure of the fourth embodiment of the present invention, including an address acquisition module 61, a network element information acquisition module 62, a quality information acquisition module 63, and a monitoring module 64; the address acquisition module 61 is used to acquire the source IP address of the service and Purpose IP address; Network element information obtaining module 62 is used for obtaining the information of IP bearer network network element between described source IP address and destination IP address; Quality information obtaining module 63 is used for obtaining the IP of described IP bearer network network element QoS information and routing table information; monitoring module 64 is used for according to described IP QoS information and routing table information, obtains the corresponding relationship diagram of business and IP bearer network quality, and the connection topology diagram of service bearing path, to realize IP bearer network monitoring.

In order to locate the problem equipment and further carry out comprehensive analysis, the equipment of the present embodiment can further include a problem location module 65, a test message sending module 66 and a test result receiving and processing module 67; the problem location module 65 is used for according to the IP QoS information Determine the IP bearer path segment and the IP bearer network network element in question; the test message sending module 66 is used to send a test message to the network elements at both ends of the IP bearer path segment in question or the IP bearer network network element in question message; the test result receiving and processing module 67 is used to receive the test result message sent by the network elements at both ends of the IP bearer path segment with the problem or the IP bearer network network element with the problem, and return the message according to the Output a problem location report.

Further, the device in this embodiment may be located outside the network element of the core network. At this time, the address acquisition module 61 is specifically used to receive the source IP address and destination IP address of the service sent by the network element of the core network; Within the network element of the core network, at this time, the address obtaining module 61 is specifically used to obtain the source IP address and destination IP address of the service.

Specifically, the network element information acquisition module 62 may include a first sending unit 621 and a first receiving unit 622; the first sending unit 621 is used to send a path information collection command to an IP bearer network element; the first receiving unit 622 is used to receive The path information reported by the network element of the IP bearer network, the path information is the IP bearer network between the source IP address and the destination IP address acquired by the network element of the IP bearer network after receiving the path information collection command Network element information.

The quality information acquisition module 63 may include a second sending unit 631 and a second receiving unit 632; the second sending unit 631 is used to send an IP QoS information collection command to the IP bearer network element between the source IP address and the destination IP address; The second receiving unit 632 is used to receive the IP QoS information reported by the network element of the IP bearer network, and the IP QoS information is the own IP that is fed back by the network element of the IP bearer network after receiving the IP QoS information collection command. QoS information.

In this embodiment, by obtaining the source IP address and destination IP address of the service, and obtaining the information of the IP bearer network element between the end-to-end addresses, the IP bearer network corresponding to the service can be determined according to the information of the IP bearer network element quality.

The common problems on the IP bearer network are mainly IP path interruption, insufficient bandwidth, poor transmission quality, extended communication time, and incorrect modification of packets by routers. Regardless of the type of problem, the idea of locating the problem is basically the same. It is necessary to analyze the equipment involved in the fault path according to the quality alarm of the service management network and the network topology diagram of the IP bearer network, and then eliminate them one by one.

The embodiment of the present invention provides a method and equipment. By setting the IP service quality monitoring equipment, the interaction between the service management network and the IP bearer network can be realized, and the service quality and the quality of the IP bearer network can be associated to realize dynamic presentation. IP bearer network topology connection information, when an abnormal network is detected, in addition to sending an alarm, it also displays the status of the network and equipment related to the abnormality on the system in real time. Telecom service operation and maintenance personnel only need to click on the icon of the abnormal network or equipment, The crux of the problem can be found through in-depth analysis step by step, which greatly simplifies the operation and maintenance difficulties of the IP bearer network.

By collecting IP QoS information, the total traffic between core network devices can be counted in real time, which provides strong data support for network health checks, network adjustment plans, and network evaluation and optimization.

By locating the problem, you can check the communication quality of the network in real time. When the quality of a certain IP bearer path deteriorates (such as excessive packet loss rate, excessive delay, and error packets, etc.), the system will actively demarcate the network where the fault is located. node, and report alarm or prompt information. In this way, problems can be quickly found and demarcated before the network deteriorates, which is convenient for users to troubleshoot and deal with, eliminate hidden dangers, avoid accidents or reduce the impact time of accidents.

Those of ordinary skill in the art can understand that all or part of the steps to realize the above method embodiments can be completed by hardware related to program instructions, and the aforementioned programs can be stored in computer-readable storage media. When the program is executed, the execution includes The steps of the above-mentioned method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (10)

1. A service-based IP bearer network monitoring method is characterized by comprising the following steps:

acquiring a source IP address and a destination IP address of a service;

acquiring information of an IP bearing network element between the source IP address and the destination IP address;

acquiring IP network service quality IP QoS information and routing table information of the IP bearing network element;

and acquiring a corresponding relation graph of the service and the quality of the IP bearing network and a connection topological graph of a service bearing path according to the IP QoS information and the routing table information so as to realize the monitoring of the IP bearing network.

2. The method of claim 1, further comprising:

determining an IP bearing path section and an IP bearing network element with problems according to the IP QoS information;

sending test messages to network elements at two ends of the IP bearing path section with the problems or the network elements of the IP bearing network with the problems;

and receiving test result messages sent by the network elements at the two ends of the IP bearing path section with the problems or the network elements of the IP bearing network with the problems, and outputting a problem positioning report according to the test result messages.

3. The method of claim 1, wherein obtaining the source IP address and the destination IP address of the service comprises:

IP service quality monitoring equipment outside a core network element receives a source IP address and a destination IP address of a service sent by the core network element;

or,

and the IP service quality monitoring equipment embedded in the core network element acquires the source IP address and the destination IP address of the service.

4. The method of claim 1, wherein the obtaining information of the network element of the IP bearer network between the source IP address and the destination IP address comprises:

sending a path information acquisition command to an IP bearing network element;

and receiving path information reported by the IP bearing network element, wherein the path information is the information of the IP bearing network element between the source IP address and the destination IP address, which is acquired after the IP bearing network element receives the path information acquisition command.

5. The method of claim 1, wherein the obtaining the IP QoS information of the network element of the IP bearer network comprises:

sending an IP QoS information acquisition command to an IP bearing network element between the source IP address and the destination IP address;

and receiving the IP QoS information reported by the IP bearing network element, wherein the IP QoS information is the IP QoS information of the IP bearing network element fed back after receiving the IP QoS information acquisition command.

6. An IP quality of service monitoring device, comprising:

the address acquisition module is used for acquiring a source IP address and a destination IP address of the service;

a network element information obtaining module, configured to obtain information of an IP bearer network element between the source IP address and the destination IP address;

the quality information acquisition module is used for acquiring IP QoS information and routing table information of the network elements of the IP bearing network;

and the monitoring module is used for acquiring a corresponding relation graph of the service and the quality of the IP bearing network and a connection topological graph of a service bearing path according to the IP QoS information and the routing table information so as to realize the monitoring of the IP bearing network.

7. The apparatus of claim 6, further comprising:

the problem positioning module is used for determining an IP bearing path section and an IP bearing network element with problems according to the IP QoS information;

a test message sending module, configured to send a test message to network elements at two ends of the failed IP bearer path segment or to a network element of the failed IP bearer network;

and the test result receiving and processing module is used for receiving the test result messages sent by the network elements at the two ends of the IP bearing path section with the problems or the network elements of the IP bearing network with the problems and outputting a problem positioning report according to the returned messages.

8. The apparatus of claim 6,

the device is located outside a core network element, and the address acquisition module is specifically used for receiving a source IP address and a destination IP address of a service sent by the core network element;

or,

the device is embedded in a network element of a core network, and the address acquisition module is specifically used for acquiring a source IP address and a destination IP address of a service.

9. The apparatus of claim 6, wherein the network element information obtaining module comprises:

the first sending unit is used for sending a path information acquisition command to the network element of the IP bearing network;

the first receiving unit is configured to receive path information reported by the IP bearer network element, where the path information is information of the IP bearer network element between the source IP address and the destination IP address, which is obtained after the IP bearer network element receives the path information acquisition command.

10. The apparatus of claim 6, wherein the quality information obtaining module comprises:

a second sending unit, configured to send an IP QoS information acquisition command to an IP bearer network element between the source IP address and the destination IP address;

and the second receiving unit is used for receiving the IP QoS information reported by the IP bearing network element, wherein the IP QoS information is the IP QoS information of the IP bearing network element fed back after the IP bearing network element receives the IP QoS information acquisition command.

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