CN103079018A - Relay package capture method and device for positioning interconnection business exception - Google Patents

Abstract

The present invention discloses a relay packet capture method and device for abnormal location and docking services. The method includes the following steps: a relay resource module performs a loopback connection from a designated time slot to a fixed monitoring time slot according to a packet capture request; After the connection is successful, the circuit switching module performs the connection between the relay time slot to be monitored and the VOIP channel resource used for monitoring; the VOIP resource module sets channel parameters, and captures packets for the relay time slot to be monitored. The invention monitors the data flow passing through the relay time slot through the VOIP resource module, so as to generate a standard format file, thereby quickly locating the equipment failure according to the data flow analysis. In addition, the data flow of the relay time slot can be monitored without using other auxiliary tools and without affecting the original business.

Description

Method and device for packet capture, location, and docking service exceptions in relay

technical field

The present invention relates to the field of communication technology, in particular to a method and device for packet capturing, locating, and docking service exceptions in relays.

Background technique

In modern communication systems, the smooth evolution of PSTN (Public Switched Telephone Network, PSTN) to NGN (Next Generation Network, NGN) is the best solution for the transformation of existing networks. PSTN TDM (Time Division Multiplex, referred to as TDM) The media streams are all converted into IP (Internet Protocol, a protocol for interconnection between networks) media streams through the gateway, and sent to the designated peer gateway device through the IP broadband data network. During the docking process of PSTN and NGN, various docking problems often occur, such as abnormal signaling interaction; VOIP (Voice over Internet Protocol, voice over IP network) telephone media can be connected or both cannot be connected; playback, number collection, etc. Abnormal functions; and the control timing problem of switching between multiple media streams inside and outside the system, seriously restricting the delivery quality and efficiency of the project.

The above interconnection problems often involve two different devices, and the relationship between HW resources and functional resources in the circuit switching system is complex, there is no log and packet capture means, and the positioning problem is troublesome, which is usually reflected in the following aspects:

1. It is often necessary to use third-party tools, such as expensive signaling instruments, E1/T1 testers, recording equipment, oscilloscopes, etc.;

2. The test tools are generally large and inconvenient to carry on site;

3. It is often necessary to interrupt the current network business and connect the test equipment, and the wiring and operation are troublesome. In special cases, hardware flying wires are required;

4. When the on-site network is complex, the cable distance is long, and the number of cables is large, the workload is relatively large;

5. Different data streams cross multiple resources in IP and TDM domains. It is necessary to judge whether the resources themselves are independent, and it is difficult to check the timing.

To sum up, an easy-to-operate, high-efficiency software packet capture and monitoring method that does not require other auxiliary tools and does not affect the original business has become an urgent need.

Contents of the invention

The main purpose of the present invention is to provide a relay packet capture method for locating and docking business abnormalities, aiming to provide an easy-to-operate, high-efficiency packet capture method that does not require other auxiliary tools and does not affect the original business.

The present invention provides a relay capture method for locating and docking service exceptions, comprising the following steps:

The relay resource module performs the loopback connection from the specified time slot to the fixed listening time slot according to the packet capture request;

After the loopback connection is successful, the circuit switching module performs the connection between the relay time slot to be monitored and the VOIP channel resource used for monitoring;

The VOIP resource module sets channel parameters and captures packets for the relay time slots to be monitored.

Preferably, the relay resource module further includes before the step of performing the loopback connection from the specified time slot to the fixed listening time slot according to the packet capture request:

The operation and maintenance module receives the test command, and obtains the test parameters after parsing it;

The service control module sends a packet capture request to the relay resource module according to the analyzed test parameters.

Preferably, after the step of performing loopback connection from the specified time slot to the fixed listening time slot according to the packet capture request, the relay resource module further includes:

The service control module preempts VOIP resources, and after successfully preempting VOIP resources, sends a resource connection command to the circuit switching module, and at the same time sends an open channel command to the VOIP resource module.

Preferably, the VOIP resource module sets channel parameters, and after the step of capturing the relay time slots to be monitored, further includes:

Send the data packet monitored by the VOIP resource module to the operation and maintenance module.

Preferably, after the step of performing loopback connection from the specified time slot to the fixed listening time slot according to the packet capture request, the relay resource module further includes:

According to the test end request, the service control module releases the VOIP resource, and sends a channel close command to the VOIP resource module; at the same time, it sends a loopback dismantling command and a resource dismantling command to the relay resource module and the circuit switching module respectively.

The present invention also provides a relay packet capture device for locating and docking service exceptions, including:

The relay resource module is used to carry out the loopback connection from the specified time slot to the fixed listening time slot according to the packet capture request;

The circuit switching module is used to perform the connection between the relay time slot to be monitored and the VOIP channel resource used for monitoring after the loopback connection is successful;

The VOIP resource module is used to set channel parameters and capture packets for the relay time slots to be monitored.

Preferably, the above-mentioned device also includes:

The operation and maintenance module is used to receive test commands and analyze them to obtain test parameters;

The service control module is configured to send a packet capture request to the relay resource module according to the analyzed test parameters.

Preferably, the service control module is also used for:

Reserve VOIP resources, and after successfully preserving VOIP resources, send a resource connection command to the circuit switching module, and send an open channel command to the VOIP resource module at the same time.

Preferably, the VOIP resource module is also used for:

Send the data packet monitored by the VOIP resource module to the operation and maintenance module.

Preferably, the service control module is also used for:

According to the test end request, release the VOIP resource, and send the channel closing command to the VOIP resource module; at the same time, send the loopback dismantling command and the resource dismantling command to the relay resource module and the circuit switching module respectively.

The present invention uses the VOIP resource module 30 to monitor the data stream passing through the relay time slot, so as to generate a standard format file, so that the device failure can be quickly located according to the data stream analysis. In addition, the data flow of the relay time slot can be monitored without using other auxiliary tools and without affecting the original business.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of a relay packet capture device for positioning and docking service exceptions according to the present invention;

Fig. 2 is a structural schematic diagram of a relay timeslot loopback established in a relay packet capture device for abnormal positioning and docking services of the present invention;

Fig. 3 is a structural schematic diagram of another embodiment of a relay packet capture device for locating and docking service exceptions according to the present invention;

Fig. 4 is a structural schematic diagram of an embodiment of a relay packet capture method for locating and docking service exceptions according to the present invention;

Fig. 5 is a schematic structural diagram of another embodiment of a relay packet capture method for locating and docking service exceptions according to the present invention;

FIG. 6 is a schematic structural diagram of another embodiment of a relay packet capturing method for locating and interconnecting service exceptions according to the present invention.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

FIG. 1 is a schematic structural diagram of an embodiment of a relay packet capture device for locating and docking service exceptions according to the present invention.

Referring to Fig. 1, a relay packet capture device for positioning and docking service exceptions according to the present invention includes:

The relay resource module 10 is used for carrying out the loopback connection from the specified time slot to the fixed listening time slot according to the packet capture request;

The circuit switching module 20 is used for connecting between the relay time slot to be monitored and the VOIP channel resource for monitoring after the loopback connection is successful;

The VOIP resource module 30 is configured to capture packets of the relay time slots to be monitored.

The packet capture request may be sent by the user to test a certain relay time slot of the network, or may be automatically triggered when a network failure occurs. The packet capture request may include: a time slot to be captured and a type of the time slot, such as a one-way time slot or a two-way time slot, and the like. The relay resource module 10 performs a loopback connection from the specified time slot to the fixed listening time slot according to the packet capture request. The loopback connection is a loopback from a designated time slot to a fixed listening time slot formed by using multiplexed time slots and idle time slots. The loopback may include a one-way loopback or a two-way loopback. As shown in Figure 2, time slot T2 is the time slot designated for capturing packets, and time slot T7 is the time slot for fixed monitoring, then the relay resource module 10 uses idle or multiplexed time slots T4, T5, T6 to form a When the relay time slot is looped back, the data stream of time slot T2 passes through time slots T4 and T5 to arrive at fixed monitoring time slot T7, and then returns to time slot T2 through time slot T6.

The above-mentioned relay resource module 10 establishes a loopback inside the relay. Therefore, after the loopback connection is successful, the circuit switching module 20 needs to establish a connection between the T network of the VOIP channel resource for monitoring and the relay resource to be monitored. Once the connection is established, a channel for the VOIP resource module 30 to monitor the relay resource is established. Unless the connection is disconnected, the VOIP resource module 30 captures packets through the channel from beginning to end.

The VOIP resource module 30 sets channel parameters, specifically far and near end IP and port, codec type, packing duration, ec enabling switch, mute detection switch, gain control, etc., and then captures packets for the relay time slots to be monitored.

In the embodiment of the present invention, the VOIP resource module 30 monitors the data flow passing through the relay time slot, thereby generating a standard format file, so that the device failure can be quickly located according to the data flow analysis. In addition, the data flow of the relay time slot can be monitored without using other auxiliary tools and without affecting the original business.

FIG. 3 is a schematic structural diagram of another embodiment of a relay packet capture device for locating and docking business abnormalities according to the present invention.

Referring to Fig. 3, on the basis of the above-mentioned embodiments, a relay packet capture device for locating and docking service exceptions in this embodiment also includes:

The operation and maintenance module 40 is used to receive the test order and obtain the test parameters after parsing it;

The service control module 50 is configured to send a packet capture request to the relay resource module 10 according to the analyzed test parameters.

The operation and maintenance module 10 may include a front-end window unit and a back-end processing unit. The front-end window unit can provide test options for users to choose. The front-end window unit can also provide users with direct input of test commands. The back-end processing unit analyzes the test options selected by the user and sends the analysis results to the business control unit. Module 50.

After the service control module 50 receives the test parameter after parsing, it needs to judge its resource validity, if it is valid, then according to the test parameter, send a packet capture request to the relay resource module 10; if it is invalid, then return the test parameter exception message to Operation and maintenance module 40 . The relay resource module 10 performs a loopback connection between the designated time slot and the fixed listening time slot according to the packet capture request, and returns a connection success message to the service control module 50 after the loopback connection is successful. If the loopback connection fails, return a connection failure message to the service control module 50, and end this process.

The above-mentioned service control module 50 is also used for:

Reserve VOIP resources, and after the resources are successfully reserved, send a resource connection command to the circuit switching module 20, and control the circuit switching module 20 to perform the connection between the relay time slot to be monitored and the VOIP channel resource for monitoring ; At the same time, send an open channel command to the VOIP resource module 30, and control the VOIP resource module 30 to capture packets for the relay time slots to be monitored.

The VOIP resource module 30 is further configured to: send the data packets monitored by the VOIP resource module 30 to the operation and maintenance module 10 .

The VOIP resource module 30 sets channel parameters according to the command to open the channel sent by the service control module, captures packets of the relay time slots to be monitored, and sends the obtained data packets to the operation and maintenance module 40 for user analysis. This operation maintenance module 40 also can comprise package file analysis unit, and this package file analysis unit analyzes the data packet that VOIP resource module 30 sends, and produces analysis result, displays by front-end window unit, thereby makes user can according to analysis result to Faults can be quickly located so that they can be dealt with in a timely manner.

The above-mentioned service control module 50 is also used for:

According to the test end request, the VOIP resource is released, and the channel closing command is sent to the VOIP resource module 30; at the same time, the loopback dismantling command and the resource dismantling command are respectively sent to the relay resource module 10 and the circuit switching module 20.

After the VOIP resource module 30 has completed the packet capture of the specified time slot according to the packet capture request, the operation and maintenance module 40 will generate a prompt message, prompting the user whether to test, if the user selects yes, then according to the user's test instruction Continue to capture packets of relay time slots; if the user chooses no, send a test end request. Service control module 50 releases VOIP channel resource, and sends closing channel command to VOIP resource module 30, then VOIP resource module 30 will close VOIP channel; Continue the connection between the specified time slot established before and the fixed listening time slot; send the resource dismantling order to the circuit switching module 20, then the circuit switching module 20 dismantling and continuing the T network path of the VOIP channel resource 30 for monitoring established before The connection with the relay resource that needs to be monitored.

What needs to be explained here is that after the above-mentioned service control module 50 fails to reserve resources, it can send a loopback dismantling command to the relay resource module 10 to control the relay resource module 30 to dismantle the previously established designated time slot to the fixed monitoring connections between slots. It is also possible to resend the request to the VOIP resource module 30 to request VOIP channel resources.

FIG. 4 is a schematic flowchart of an embodiment of a relay packet capture method for locating and docking service exceptions according to the present invention.

With reference to Fig. 4, the present invention a kind of relay packet capturing method of location docking business abnormality comprises the following steps:

Step S01, the relay resource module 10 performs a loopback connection from the specified time slot to the fixed listening time slot according to the packet capture request;

The packet capture request may be sent by the user to test a certain relay time slot of the network, or may be automatically triggered when a network failure occurs. The packet capture request may include: a time slot to be captured, a type of the time slot, such as a one-way time slot or a two-way time slot, and the like. The relay resource module performs a loopback connection from the specified time slot to the fixed listening time slot according to the packet capture request. The loopback connection is a loopback in which a designated time slot and a fixed listening time slot are respectively connected by using a multiplexed time slot, an idle time slot, or the like. The loopback may be a one-way loopback, as shown in FIG. 2 ; it may also be a two-way loopback.

Step S02, after the loopback connection is successful, the circuit switching module 20 performs the connection between the relay time slot to be monitored and the VOIP channel resource used for monitoring;

The loopback connection established in step S01 is a loopback inside the trunk. Therefore, after the loopback connection is successful, it is also necessary to establish a connection between the T-network channel of the VOIP channel resource for monitoring and the relay resource to be monitored. Once the connection is established, a channel for the VOIP resource module 30 to monitor the relay time slot is established, unless the connection is torn down, the VOIP resource module 30 captures packets through the channel from beginning to end.

Step S03, the VOIP resource module 30 captures packets for the relay time slots to be monitored.

The VOIP resource module 30 sets channel parameters, specifically far and near end IP and port, codec type, packing duration, ec enabling switch, mute detection switch, gain control, etc., and then captures packets for the relay time slots to be monitored.

In the embodiment of the present invention, the VOIP resource module 30 monitors the data flow passing through the relay time slot, thereby generating a standard format file, so that the device failure can be quickly located according to the data flow analysis. In addition, the data flow of the relay time slot can be monitored without using other auxiliary tools and without affecting the original business.

FIG. 5 presents a schematic flow chart of another embodiment of a relay packet capture method for locating and docking service exceptions according to the present invention.

With reference to Fig. 5, before above-mentioned step S01 also comprises:

Step S04, the operation and maintenance module 40 receives the test command, and obtains the test parameters after analyzing it;

The operation and maintenance module 40 may include a front-end window unit and a back-end processing unit. The front-end window unit can provide test options that can be selected by the user, and the front-end window unit can also provide the user to directly input test commands, etc., and the back-end processing unit parses the test options selected by the user and obtains test parameters.

Step S05 , the service control module 50 sends a packet capture request to the relay resource module 10 according to the test parameters.

After the service control module 50 receives the analyzed test parameters, it needs to judge the validity of the resource, if it is valid, it will send a packet capture request to the relay resource module 10 according to the test parameters; if it is invalid, it will return a test parameter exception message to the operation Maintenance module 40 . The relay resource module 10 performs a loopback connection between the designated time slot and the fixed listening time slot according to the packet capture request, and returns to the service control module that the connection is successful after the loopback connection is successful. If the loopback connection fails, return a connection failure message to the service control module 50, and end this process.

After the above step S01, further include:

Step S06 , the service control module 50 reserves VOIP resources, and after successfully preserving VOIP resources, sends a resource connection command to the circuit switching module 20 , and sends an open channel command to the VOIP resource module 30 at the same time.

The service control module 50 sends a request to the VOIP resource module 30 to reserve VOIP channel resources. If there is an idle VOIP channel in the VOIP resource module 30, then return to reserve the VOIP resource success message to the service control module 50, then the service control module 50 sends a resource connection command to the circuit switching module 20, and sends an open channel command to the VOIP simultaneously Resource module 30. If there is no idle VOIP channel in the VOIP resource module 30, then return to occupy the VOIP resource failure message to the service control module 50, then the service control module 50 can send the loopback dismantling order to the relay resource module 10, set up before The relay time slot is looped back for dismantling; the request can also be resent to the VOIP resource module 30 to request VOIP channel resources.

After the above step S03, further include:

Step S07 , sending the data packet monitored by the VOIP resource module 30 to the operation and maintenance module 40 .

The VOIP resource module 30 sets channel parameters according to the command to open the channel sent by the service control module 50, captures the relay time slots to be monitored, and sends the obtained data packets to the operation and maintenance module 40 for user analysis. The operation and maintenance module 40 can also include a package file analysis unit, which analyzes the data packets sent by the VOIP resource, and generates analysis results, which are displayed by the front-end window unit, so that users can troubleshoot according to the analysis results Quickly locate for timely processing.

FIG. 6 is a schematic flow chart of another embodiment of a packet capture method for relay time slots for locating and docking service exceptions according to the present invention.

With reference to Fig. 6, also include after above-mentioned step S03:

Step S08, according to the test end request, the service control module 50 releases the VOIP resource, and sends a channel closing command to the VOIP resource module 30; simultaneously sends a loopback dismantling command and a resource dismantling command to the relay resource module 10 and the circuit Switch module 20.

After receiving the test end request, the service control module 50 sends a VOIP resource release request to the VOIP resource module 30, and the VOIP resource module 30 releases the VOIP channel resource. Simultaneously service control module 50 also sends closing channel command to VOIP resource module 30, then VOIP resource module 30 closes VOIP channel; time slot to the connection between the fixed monitoring time slot; send the resource dismantling command to the circuit switching module 20, then the circuit switching module 20 dismantling the T network path of the VOIP channel resource for monitoring and the relay to be monitored before the circuit switching module 20 is dismantled Connections between resources.

What needs to be explained here is that there is no sequence for the execution of releasing VOIP channel resources, loopback dismantling and resource dismantling, they can be performed at the same time, or the order can be set according to specific conditions.

The above is only a preferred embodiment of the present invention, and does not limit the scope of its patents. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings is directly or indirectly used in other related technical fields. All are included in the scope of patent protection of the present invention in the same way.

Claims (10)

1. A relay capture method for abnormal location docking business, characterized in that, comprising the following steps: The relay resource module performs the loopback connection from the specified time slot to the fixed listening time slot according to the packet capture request; After the loopback connection is successful, the circuit switching module performs the connection between the relay time slot to be monitored and the VOIP channel resource used for monitoring; The VOIP resource module sets channel parameters and captures packets for the relay time slots to be monitored. 2. The method according to claim 1, wherein the relay resource module further includes before the step of performing the loopback connection from the specified time slot to the fixed listening time slot according to the packet capture request: The operation and maintenance module receives the test command, and obtains the test parameters after parsing it; The service control module sends a packet capture request to the relay resource module according to the analyzed test parameters. 3. The method according to claim 1, characterized in that, the relay resource module further includes after the step of carrying out the loopback connection from the specified time slot to the fixed listening time slot according to the packet capture request: The service control module preempts VOIP resources, and after successfully preempting VOIP resources, sends a resource connection command to the circuit switching module, and at the same time sends an open channel command to the VOIP resource module. 4. according to the method described in any one in claim 1 to 3, it is characterized in that, described VOIP resource module sets channel parameter, also comprises after the step of capturing packets to the relay timeslot that needs monitoring: Send the data packet monitored by the VOIP resource module to the operation and maintenance module. 5. The method according to any one of claims 1 to 3, characterized in that, after the step of performing loopback connection from the specified time slot to the fixed listening time slot according to the packet capture request, the relay resource module further includes : According to the test end request, the service control module releases the VOIP resource, and sends a channel close command to the VOIP resource module; at the same time, it sends a loopback dismantling command and a resource dismantling command to the relay resource module and the circuit switching module respectively. 6. A relay packet capture device for abnormal location and docking services, characterized in that it comprises: The relay resource module is used to carry out the loopback connection from the specified time slot to the fixed listening time slot according to the packet capture request; The circuit switching module is used to perform the connection between the relay time slot to be monitored and the VOIP channel resource used for monitoring after the loopback connection is successful; The VOIP resource module is used to set channel parameters and capture packets for the relay time slots to be monitored. 7. The relay packet capture device according to claim 6, further comprising: The operation and maintenance module is used to receive test commands and analyze them to obtain test parameters; The service control module is configured to send a packet capture request to the relay resource module according to the analyzed test parameters. 8. The relay packet capturing device according to claim 6, wherein the service control module is also used for: Reserve VOIP resources, and after successfully preserving VOIP resources, send a resource connection command to the circuit switching module, and send an open channel command to the VOIP resource module at the same time. 9. The relay packet capturing device according to any one of claims 6 to 8, wherein the VOIP resource module is also used for: Send the data packet monitored by the VOIP resource module to the operation and maintenance module. 10. The relay packet capturing device according to any one of claims 6 to 8, wherein the service control module is also used for: According to the test end request, release the VOIP resource, and send the channel closing command to the VOIP resource module; at the same time, send the loopback dismantling command and the resource dismantling command to the relay resource module and the circuit switching module respectively.

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