WO2017101567A1 - 信令跟踪方法及装置 - Google Patents

信令跟踪方法及装置 Download PDF

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Publication number
WO2017101567A1
WO2017101567A1 PCT/CN2016/101490 CN2016101490W WO2017101567A1 WO 2017101567 A1 WO2017101567 A1 WO 2017101567A1 CN 2016101490 W CN2016101490 W CN 2016101490W WO 2017101567 A1 WO2017101567 A1 WO 2017101567A1
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Prior art keywords
tracking
network management
management server
signaling
switching
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PCT/CN2016/101490
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English (en)
French (fr)
Inventor
廖思华
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中兴通讯股份有限公司
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Publication of WO2017101567A1 publication Critical patent/WO2017101567A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a signaling tracking method and apparatus.
  • signaling tracking is a very important part of network maintenance. It is used to track various signaling processes, and provides network management personnel with the basis for analyzing, locating, and solving problems in daily maintenance.
  • the focus of signaling tracking is on the flow of monitoring signaling and the order of protocol processing.
  • the real-time requirements are relatively high.
  • the task is sent to the service network element through the network management server.
  • the network management server reports the result to the client.
  • the client will lose its connection with the original network management server and cannot receive the signaling message from the network management server for display. As a result, the signaling tracking task fails.
  • the stability of signaling tracking is low.
  • the main objective of the present invention is to provide a signaling tracking method and apparatus, which aim to improve the stability of signaling tracking.
  • the present invention provides a signaling tracking method, where the signaling tracking method includes:
  • the client Upon receiving the switching notification sent by the current network management server, the client caches the tracking data of the current signaling tracking task;
  • the client After receiving the switching success notification sent by the network management server after the switching, the client sends the tracking recovery request of the signaling tracking task to the service foreground based on the switched network management server, so that the service front desk receives the service according to the receiving
  • the trace recovery request returns tracking data of the signaling tracking task that it cached during the switching;
  • the step of the client sending the tracking recovery request of the signaling tracking task to the service foreground based on the switched network management server includes:
  • the client sequentially extracts identification information of each of the signaling tracking tasks
  • the client uses the extracted identification information as a tracking recovery request of the corresponding signaling tracking task, and sends the extracted identification information to the service based on the switched network management server.
  • the client Upon receiving the transmission success information returned by the network management server after the switching, the client continues to extract other identification information in order.
  • the client caches the tracking data of the current signaling tracking task, and performs the following steps:
  • the client calculates a fifth version MD5 value of the message digest algorithm of each of the signaling tracking tasks, and stores the calculated MD5 values as identification information in association with the corresponding signaling tracking task.
  • the signaling tracking method further includes:
  • the client shields the tracking task exit instruction during the switching.
  • the present invention further provides a signaling tracking method, where the signaling tracking method includes:
  • the service foreground Upon receiving the switching notification sent by the current network management server, the service foreground continues to acquire and cache the tracking data of the current signaling tracking task;
  • the service front desk After receiving the tracking recovery request of the signaling tracking task sent by the client based on the switched network management server, the service front desk scans the tracking data of the signaling tracking task that is cached during the switching based on the network management after the switching The server sends to the client.
  • the step that the service foreground sends the tracking data of the signaling tracking task that is cached during the switching to the client according to the switched network management server includes:
  • the service foreground Upon receiving the tracking recovery request of the signaling tracking task sent by the client based on the switched network management server, the service foreground extracts the identification information carried by the tracking recovery request, and obtains the cached and extracted identical identification information. Tracking data of the associated signaling tracking task during the switching;
  • the tracking data obtained by the service foreground is sent to the client according to the switched network management server.
  • the following steps are also performed:
  • the service foreground calculates the fifth version MD5 value of the message digest algorithm of each of the signaling tracking tasks, and stores the calculated MD5 values as identification information in association with the corresponding signaling tracking task.
  • the present invention further provides a signaling tracking device, where the signaling tracking device includes:
  • the first cache module is configured to cache the tracking data of the current signaling tracking task when the client where the client is located receives the switching notification sent by the current network management server;
  • a first sending module configured to send a tracking recovery request of the signaling tracking task to the service foreground according to the switched network management server when the client sends a switching success notification sent by the network management server after the switching Returning, by the service foreground, the signaling tracking cached during the switching according to the received tracking recovery request Tracking data;
  • a merging module configured to receive the tracking data and the cached tracking data when the client at the client receives the tracking data during the switching of the signaling tracking task returned by the network management server according to the switching merge.
  • the first sending module is further configured to sequentially extract identification information of each of the signaling tracking tasks; and use the extracted identification information as tracking of the corresponding signaling tracking task each time the identification information is extracted. Recovering the request, and sending the extracted identification information to the service foreground based on the switched network management server; and continuing to sequentially extract other identification information when receiving the transmission success information returned by the network management server after the switching.
  • the first cache module is further configured to calculate a fifth version MD5 value of the message digest algorithm of each of the signaling tracking tasks, and store the calculated MD5 values as identification information in association with the corresponding signaling tracking task.
  • the signaling tracking device further includes:
  • a masking module is used to mask the tracking task exit instruction during the switching.
  • the present invention further provides a signaling tracking device, where the signaling tracking device includes:
  • the second cache module is configured to continue to acquire and cache the tracking data of the current signaling tracking task when the service foreground receives the switching notification sent by the current network management server;
  • a second sending module configured to: when the service foreground of the service receives the tracking recovery request of the signaling tracking task sent by the client based on the switched network management server, the tracking data of the signaling tracking task buffered during the switching The network management server based on the switching is sent to the client.
  • the second sending module is further configured to: when the service foreground of the service receives the tracking recovery request of the signaling tracking task sent by the client based on the switched network management server, extract the identifier carried by the tracking recovery request And acquiring the tracked data of the cached tracking task associated with extracting the same identification information during the switching; and transmitting the acquired tracking data to the client based on the switched network management server.
  • the second cache module is further configured to calculate a fifth version MD5 value of the message digest algorithm of each signaling tracking task when the service front desk receives the switching notification sent by the current network management server, and calculates Each MD5 value is stored as identification information in association with its corresponding signaling tracking task.
  • the signaling tracking method and device when the network management server performs the switching operation, the client and the service foreground maintain the signaling tracking state before the switching, and after the switching is successful, the network management server that provides the service by the client based on the switching is performed.
  • the tracking data of the service foreground is switched during the switching, and is merged with the tracking data of the signaling tracking task cached before the switching, so that the client can obtain the tracking data normally, regardless of whether the network management server performs the switching, thereby improving the stability of the signaling tracking. the goal of.
  • FIG. 1 is a schematic flowchart of a first embodiment of a signaling tracking method according to the present invention
  • FIG. 2 is a diagram showing an example of a topology structure of a signaling tracking system applied to a signaling tracking method according to the present invention
  • FIG. 3 is a schematic flowchart of a fourth embodiment of a signaling tracking method according to the present invention.
  • FIG. 4 is a schematic diagram of functional modules of a first embodiment of a signaling tracking apparatus according to the present invention.
  • FIG. 5 is a schematic diagram of functional modules of a fourth embodiment of a signaling tracking apparatus according to the present invention.
  • the present invention provides a signaling tracking method.
  • the signaling tracking method includes:
  • Step S10 When receiving the switching notification sent by the current network management server, the client caches the tracking data of the current signaling tracking task.
  • the signaling tracking method proposed by the present invention is applied to a signaling tracking system.
  • the client in the signaling tracking system shown in FIG. 2, the client can open a signaling tracking task in response to a user operation, and the signaling tracking task is performed.
  • the network management server (the main network management server) that provides the service is distributed to each service network element in the service foreground. After the signaling network flows, the service network element sends the signaling flow to the client through the main network management server for the client to display.
  • the network management server is switched.
  • the client and the service network element maintain the signaling tracking state before the switching. After the switching succeeds, the client passes the network management server that provides the service.
  • the switched standby network management server loads the tracking data of the service network element during the switching, and continues to load the subsequent tracking data. After the client starts the signaling tracking task, the client can be normal regardless of whether the network management server performs the switching. Display tracking tasks and data to improve the stability of signaling tracking.
  • the network management server that provides the service runs a dual-machine monitoring process, and the dual-system monitoring process detects the switching instruction in real time, and notifies the current network management server to perform the dual-machine switching when the switching instruction is detected.
  • the current network management server After receiving the notification of the dual-machine switching, the current network management server sends a switching notification to the client and the service front desk (including multiple service network elements), and receives the switching response success message fed back by the client and the service foreground. Double machine switching.
  • the client when receiving the switching notification sent by the current network management server, the client determines that the signaling tracking service cannot be obtained temporarily, and caches the current signaling tracking task and the tracking data of the signaling tracking task. After being cached, the client sends a switching response success message to the current network management server.
  • the service foreground determines that the service is temporarily unavailable.
  • the data reporting service caches the current signaling tracking task and the tracking data of the signaling tracking task. After the cache is completed, the service foreground sends a switching response success message to the current network management server, and continues to acquire tracking data, and is cached in the data.
  • the preset buffer in the memory but pauses the reported tracking data.
  • Step S20 After receiving the switching success notification sent by the network management server after the switching, the client sends the tracking recovery request of the signaling tracking task to the service foreground based on the switched network management server for the service. Receiving, by the foreground, the tracking data of the signaling tracking task that is buffered during the switching according to the received tracking recovery request;
  • the switched network management server sends a notification of successful handover to the client and the service foreground.
  • the signaling tracking system shown in FIG. After the two-node switchover is complete, the standby network management server takes over the service provided by the primary network management server, and the standby network management server sends a successful notification of the switching to the client and the service network elements in the service foreground.
  • the client Upon receiving the switching success notification sent by the network management server after the switching, the client determines that the signaling tracking service can be obtained normally, and sends the tracking recovery request of the signaling tracking task to the switched network management server after the switching.
  • the network management server forwards the received tracking recovery request to the service foreground.
  • the service front desk After receiving the tracking recovery request sent by the network management server after the switching, the service front desk determines that the data reporting service can be obtained, and acquires the tracking data of the signaling tracking task corresponding to the tracking recovery request cached during the switching, and obtains the obtained data.
  • the tracking data is sent to the network management server after the switching, and the received tracking data is reported to the client by the switched network management server.
  • the service front end reports the tracking data of the signaling tracking task that is subsequently acquired to the client through the switched network management server.
  • Step S30 The client compares the received tracking data with the cached tracking data when receiving the tracking data of the signaling tracking task returned by the network management server based on the switching after the switching.
  • the client Upon receiving the tracking data of the signaling tracking task returned by the network management server returned by the network management server after the switching, the client obtains the cached tracking data, and the cached tracking data and the received tracking data Track data for consolidation.
  • the client may also display the merged tracking data for the user to view.
  • the client and the service front maintain the signaling tracking state before the switching, and after the switching is successful, the client loads the network management server that provides the service based on the switching.
  • the tracking data of the service foreground during the switching is merged with the tracking data of the signaling tracking task cached before the switching, so that the client can obtain the tracking data normally, regardless of whether the network management server performs the switching, thereby improving the stability of the signaling tracking. purpose.
  • the step S20 includes:
  • the client sequentially extracts identification information of each of the signaling tracking tasks
  • the client uses the extracted identification information as a tracking recovery request of the corresponding signaling tracking task, and sends the extracted identification information to the service based on the switched network management server.
  • the client Upon receiving the transmission success information returned by the network management server after the switching, the client continues to extract other identification information in order.
  • the identification information in this embodiment is used to uniquely represent the signaling tracking task, and the identification information includes a task number assigned when the signaling tracking task is created, or a feature value calculated by using a related algorithm.
  • the pre-assigned task number is used as the identification information of the signaling tracking task
  • the task number is used as the tracking recovery request of the corresponding signaling tracking task, and is sent to the service foreground in a serial manner, only the current strip. After the tracking recovery request is successfully sent, the next tracking recovery request is sent.
  • the client sequentially extracts the task number associated with each signaling tracking task; the client extracts each time the task number is extracted.
  • the task number is used as a tracking recovery request of the associated signaling tracking task, and is sent to the service foreground based on the extracted task number of the network management server after the switching; and the sending returned by the network management server after receiving the switching
  • the client continues to extract other task numbers in sequence until the stored task numbers are delivered to the service foreground, so that each signaling tracking task can be restored.
  • step S10 while performing step S10, the following steps are also performed:
  • the client calculates a fifth version MD5 value of the message digest algorithm of each of the signaling tracking tasks, and stores the calculated MD5 values as identification information in association with the corresponding signaling tracking task.
  • MD5 Message-Digest Algorithm, also known as digest algorithm, hash algorithm
  • hash algorithm is one of the widely used hash algorithms, which computes data (such as Chinese characters) into another fixed length. Value to provide integrity protection of the data.
  • the file number of this algorithm is RFC 1321 (R. Rivest, MIT Laboratory for Computer Science and RSA Data Security Inc. April 1992).
  • the MD5 algorithm has the following features:
  • anti-modification any changes to the original data, even if only 1 byte is modified, the MD5 value obtained is very different.
  • the MD5 value of the signaling tracking task is calculated as the identification information signaling tracking task in the embodiment.
  • the client caches the tracking data of the current signaling tracking task.
  • the MD5 values of each of the signaling tracking tasks are respectively calculated, and the calculated MD5 values are stored in association with their corresponding signaling tracking tasks.
  • other algorithms may be used to calculate the feature value of the signaling tracking task, for example, using the SHA-1 algorithm (SHA-1 is more secure than MD5, but consumes more processing). Resources).
  • step S20 includes:
  • the client sequentially extracts the MD5 value associated with each of the stored signaling tracking tasks
  • the client uses the extracted MD5 value as a tracking recovery request of the associated signaling tracking task, and sends the extracted MD5 value to the service based on the switched network management server.
  • the client Upon receiving the transmission success information returned by the network management server after the switching, the client continues to extract other MD5 values in order.
  • the embodiment uses the calculated MD5 value as the tracking recovery request of the corresponding signaling tracking task, and sends a tracking recovery request in a serial manner, and only sends the next tracking after the current tracking recovery request is successfully sent.
  • the client sequentially extracts the MD5 value associated with each of the stored signaling tracking tasks; and each time the MD5 value is extracted, the client uses the extracted MD5 value as its associated signaling.
  • the service foreground when receiving the switching notification sent by the current network management server, calculates the MD5 value of each signaling tracking task, and calculates each MD5 value and its corresponding signaling. Track task association storage. And receiving, by the service foreground, the tracking data of the buffered signaling tracking task associated with receiving the same MD5 value during the switching, when receiving the MD5 value sent by the network management server based on the switching, and The obtained tracking data is reported to the client through the switched network management server for display by the client.
  • the signaling tracking task is characterized by calculating the MD5 value, and the MD5 value is used as the tracking recovery request of the signaling tracking task, which ensures that the service platform feeds back the correct tracking data.
  • the length of the MD5 value is fixed to 128. Bits can also reduce the occupation of network resources.
  • the signaling tracking method further includes:
  • the client shields the tracking task exit instruction during the switching.
  • the client shields the tracking task exit instruction during the switching.
  • the following describes the link monitoring mechanism running on the client.
  • the client runs a link monitoring process, and the link monitoring process monitors the connection status between the client and the currently provided network management server in real time.
  • the network management server switches. During the period, the connection between the client and the currently provided network management server will be disconnected.
  • the link monitoring process will Trigger the trace task exit instruction. At this time, the client shields the link task exiting instruction triggered by the link monitoring process, and does not respond.
  • the client when receiving the switching notification sent by the current network management server, may also suspend the running link monitoring process and no longer perform link monitoring to avoid interruption of the signaling tracking task.
  • the suspended link monitoring process Upon receiving the switching success notification sent by the network management server after the switching, the suspended link monitoring process is resumed, and link monitoring is continued.
  • This embodiment can further ensure that the signaling tracking task is not interrupted by the network management server switching.
  • the present invention further provides a signaling tracking method.
  • the signaling tracking method includes:
  • Step S110 Upon receiving the switching notification sent by the current network management server, the service foreground continues to acquire and cache the tracking data of the current signaling tracking task.
  • the signaling tracking method proposed by the present invention is applied to a signaling tracking system.
  • the client in the signaling tracking system shown in FIG. 2, the client can open a signaling tracking task in response to a user operation, and the signaling tracking task is performed.
  • the network management server (the main network management server) that provides the service is distributed to each service network element in the service foreground. After the signaling network flows, the service network element sends the signaling flow to the client through the main network management server for the client to display.
  • the network management server is switched.
  • the client and the service network element maintain the signaling tracking state before the switching. After the switching succeeds, the client passes the network management server that provides the service.
  • the switched standby network management server loads the tracking data of the service network element during the switching, and continues to load the subsequent tracking data. After the client starts the signaling tracking task, the client can be normal regardless of whether the network management server performs the switching. Display tracking tasks and data to improve the stability of signaling tracking.
  • the network management server currently providing the service runs a dual-machine monitoring process, and the dual-machine monitoring process is implemented.
  • the switchover command is detected, and when the switchover command is detected, the current network management server is notified to prepare for the dual-machine switchover.
  • the current network management server After receiving the notification of the dual-machine switching, the current network management server sends a switching notification to the client and the service front desk (including multiple service network elements), and receives the switching response success message fed back by the client and the service foreground. Double machine switching.
  • the client when receiving the switching notification sent by the current network management server, the client determines that the signaling tracking service cannot be obtained temporarily, and caches the current signaling tracking task and the tracking data of the signaling tracking task. After being cached, the client sends a switching response success message to the current network management server.
  • the service foreground determines that the data reporting service is temporarily unavailable, and caches the current signaling tracking task and the tracking data of the signaling tracking task, after completing the buffering,
  • the service front end sends a switching response success message to the current network management server, and continues to acquire the tracking data, which is cached in the preset buffer area in the memory, but pauses the reported tracking data.
  • Step S120 Upon receiving the tracking recovery request of the signaling tracking task sent by the client based on the switched network management server, the service foreground converts the tracking data of the signaling tracking task buffered during the switching based on the switched The network management server sends to the client.
  • the switched network management server sends a notification of successful handover to the client and the service foreground.
  • the signaling tracking system shown in FIG. After the two-node switchover is complete, the standby network management server takes over the service provided by the primary network management server, and the standby network management server sends a successful notification of the switching to the client and the service network elements in the service foreground.
  • the client Upon receiving the switching success notification sent by the network management server after the switching, the client determines that the signaling tracking service can be obtained normally, and sends the tracking recovery request of the signaling tracking task to the switched network management server after the switching.
  • the network management server forwards the received tracking recovery request to the service foreground.
  • the service front desk After receiving the tracking recovery request sent by the network management server after the switching, the service front desk determines that the data reporting service can be obtained, and acquires the tracking data of the signaling tracking task corresponding to the tracking recovery request cached during the switching, and obtains the obtained data.
  • the tracking data is sent to the network management server after the switching, and the received tracking data is reported to the client by the switched network management server.
  • the service front end reports the tracking data of the signaling tracking task that is subsequently acquired to the client through the switched network management server.
  • the client After receiving the tracking data of the signaling tracking task returned by the network management server returned by the network management server returned by the network management server, the client obtains the cached tracking data, and obtains the cached tracking data and the received tracking data. Track data for consolidation.
  • the client may also display the merged tracking data for the user to view.
  • the step S120 includes:
  • the service foreground Upon receiving the tracking recovery request of the signaling tracking task sent by the client based on the switched network management server, the service foreground extracts the identification information carried by the tracking recovery request, and obtains the cached and extracted identical identification information. Tracking data of the associated signaling tracking task during the switching;
  • the tracking data obtained by the service foreground is sent to the client according to the switched network management server.
  • the identification information in this embodiment is used to uniquely represent the signaling tracking task, and the identification information includes a task number assigned when the signaling tracking task is created, or a feature value calculated by using a related algorithm.
  • the pre-assigned task number is used as the identification information of the signaling tracking task
  • the task number is used as the tracking recovery request of the corresponding signaling tracking task.
  • the associated signaling traces the tracking data of the task during the switching.
  • the obtained tracking data is reported to the client through the switched network management server.
  • a seventh embodiment of the signaling tracking method of the present invention is proposed.
  • the following steps are further performed:
  • the service foreground calculates the fifth version MD5 value of the message digest algorithm of each of the signaling tracking tasks, and stores the calculated MD5 values as identification information in association with the corresponding signaling tracking task.
  • the MD5 value of the service foreground computing signaling tracking task is used to represent the signaling tracking task. Specifically, when receiving the switching notification sent by the current network management server, the MD5 value of each signaling tracking task is calculated, and the calculated MD5 values are stored in association with the corresponding signaling tracking task. It should be noted that, in other embodiments, other algorithms may be used to calculate the feature value of the signaling tracking task, for example, using the SHA-1 algorithm (SHA-1 is more secure than MD5, but consumes more processing). Resources).
  • the client calculates the MD5 value of the current signaling tracking task while buffering the tracking data of the current signaling tracking task.
  • the client calculates an MD5 value of each of the signaling tracking tasks, and stores the calculated MD5 values in association with their corresponding signaling tracking tasks.
  • the client Upon receiving the switching success notification sent by the network management server after the switching, the client extracts the MD5 value as the tracking recovery request of the associated signaling tracking task, and sends the extracted MD5 value based on the switched network management server. To the business front desk.
  • step S120 includes:
  • the service foreground extracts the MD5 value carried by the tracking recovery request, and acquires the tracking data of the buffered signaling tracking task associated with the extracted same MD5 value during the switching;
  • the tracking data obtained by the service foreground is sent to the client according to the switched network management server.
  • the service foreground receives the tracking recovery request sent by the network management server after the switching, and extracts the MD5 value carried by the received tracking recovery request, and obtains the tracking recovery.
  • the request carries the same MD5 value associated with the signaling tracking task tracking data during the switching.
  • the tracking data of the signaling tracking task associated with receiving the same MD5 value is obtained, the obtained tracking data is reported to the client through the switched network management server for the client to display. .
  • the signaling tracking task is characterized by calculating the MD5 value, and the MD5 value is used as the tracking recovery request of the signaling tracking task, which ensures that the service platform feeds back the correct tracking data.
  • the length of the MD5 value is fixed to 128. Bits can also reduce the occupation of network resources.
  • the present invention further provides a signaling tracking device.
  • the signaling tracking device includes:
  • the first cache module 10 is configured to cache the tracking data of the current signaling tracking task when the client where the client is located receives the switching notification sent by the current network management server;
  • the signaling tracking device provided by the present invention is applied to a signaling tracking system.
  • the signaling tracking device is built in the client, and the client can open the message in response to the user operation.
  • the task is tracked, and the signaling tracking task is distributed to the service network elements of the service foreground through the network management server (the main network management server) that provides the service.
  • the service network element sends the signaling flow to the client through the main network management server for the client to display.
  • the network management server is switched. When the network management server takes over the service provided by the main network management server, the client and the service network element maintain the signaling tracking state before the switching.
  • the client passes the network management server that provides the service.
  • the switched standby network management server loads the tracking data of the service network element during the switching, and continues to load the subsequent tracking data.
  • the client can be normal regardless of whether the network management server performs the switching. Display tracking tasks and data to improve the stability of signaling tracking.
  • the network management server that provides the service runs a dual-machine monitoring process, and the dual-system monitoring process detects the switching instruction in real time, and notifies the current network management server to perform the dual-machine switching when the switching instruction is detected.
  • the current network management server After receiving the notification of the dual-machine switching, the current network management server sends a switching notification to the client and the service front desk (including multiple service network elements), and receives the switching response success message fed back by the client and the service foreground. Double machine switching.
  • the first cache module 10 receives the switching sent by the current network management server when the client is located at the client. When the notification is made, it is determined that the signaling tracking service is temporarily unavailable, and the current signaling tracking task and the tracking data of the signaling tracking task are cached. After the cache is completed, the first cache module 10 is based on the current client. The network management server sends a switch response success message.
  • the service foreground determines that the data reporting service is temporarily unavailable, and caches the current signaling tracking task and the tracking data of the signaling tracking task, after completing the buffering,
  • the service front end sends a switching response success message to the current network management server, and continues to acquire the tracking data, which is cached in the preset buffer area in the memory, but pauses the reported tracking data.
  • the first sending module 20 is configured to: when the client that the client receives the switching success notification sent by the network management server after the switching, the network management server sends the tracking recovery request of the signaling tracking task to the service foreground according to the switching, Returning, by the service foreground, the tracking data of the signaling tracking task buffered during the switching according to the received tracking recovery request;
  • the switched network management server sends a notification of successful handover to the client and the service foreground.
  • the signaling tracking system shown in FIG. After the two-node switchover is complete, the standby network management server takes over the service provided by the primary network management server, and the standby network management server sends a successful notification of the switching to the client and the service network elements in the service foreground.
  • the first sending module 20 When the first sending module 20 receives the switching success notification sent by the network management server after the switching, the first sending module 20 determines that the signaling tracking service can be normally acquired, and sends the tracking recovery request of the signaling tracking task to the switched device.
  • the network management server forwards the received tracking recovery request to the service foreground by the switched network management server.
  • the service front desk After receiving the tracking recovery request sent by the network management server after the switching, the service front desk determines that the data reporting service can be obtained, and acquires the tracking data of the signaling tracking task corresponding to the tracking recovery request cached during the switching, and obtains the obtained data.
  • the tracking data is sent to the network management server after the switching, and the received tracking data is reported to the client by the switched network management server.
  • the service front end reports the tracking data of the signaling tracking task that is subsequently acquired to the client through the switched network management server.
  • the merging module 30 is configured to: when the client where the client receives the tracking data of the signaling tracking task returned by the network management server based on the switching, the tracking data and the cache tracking are received. Data merge.
  • the merging module 30 obtains the cached tracking data when the client in the client receives the tracking data during the switching of the signaling tracking task returned by the network management server after the switching, and the cached tracking data is obtained. Merged with the received tracking data.
  • the signaling tracking device further includes a display module, configured to display the merged tracking data based on the client where the tracking data is merged, for the user to view.
  • the signaling tracking device provided in this embodiment is built in the client.
  • the client and the service foreground maintain the signaling tracking state before the switching, and after the switching is successful, the client is based on the switching.
  • the network management server that provides the service loads the tracking data of the service foreground during the switching, and merges with the tracking data of the signaling tracking task cached before the switching, so that the client can obtain the tracking data normally regardless of whether the network management server performs the switching, thereby improving The purpose of signaling tracking stability.
  • the first sending module 20 is further configured to sequentially extract identification information of each signaling tracking task. And each time the identification information is extracted, the extracted identification information is used as a tracking recovery request of the corresponding signaling tracking task, and the extracted identification information is sent to the service foreground based on the switched network management server; And, after receiving the transmission success information returned by the network management server after the switching, continuing to extract other identification information in order.
  • the identification information in this embodiment is used to uniquely represent the signaling tracking task, and the identification information includes a task number assigned when the signaling tracking task is created, or a feature value calculated by using a related algorithm.
  • the pre-assigned task number is used as the identification information of the signaling tracking task
  • the task number is used as the tracking recovery request of the corresponding signaling tracking task, and is sent to the service foreground in a serial manner, only the current strip. After the tracking recovery request is successfully sent, the next tracking recovery request is sent.
  • the first sending module 20 sequentially extracts the task number associated with each signaling tracking task; each time the task number is extracted, the first A sending module 20 uses the extracted task number as a tracking recovery request of the associated signaling tracking task, and sends the extracted task number to the service foreground based on the switched network management server; after receiving the switching When the sending success information is returned by the network management server, the first sending module 20 continues to extract other task numbers in sequence until the stored task numbers are all sent to the service foreground, so that each signaling tracking task can be restored.
  • the first cache module 10 is further configured to calculate a message digest algorithm of each of the signaling tracking tasks.
  • the fifth version of the MD5 value stores the calculated MD5 values as identification information in association with its corresponding signaling tracking task.
  • MD5 Message-Digest Algorithm, also known as digest algorithm, hash algorithm
  • hash algorithm is one of the widely used hash algorithms, which computes data (such as Chinese characters) into another fixed length. Value to provide integrity protection of the data.
  • the file number of this algorithm is RFC 1321 (R. Rivest, MIT Laboratory for Computer Science and RSA Data Security Inc. April 1992).
  • the MD5 algorithm has the following features:
  • anti-modification make any changes to the original data, even if only modify 1 byte, the resulting MD5 The values are very different.
  • the MD5 value of the signaling tracking task is calculated as the identification information characterization signaling tracking task.
  • the first cache module 10 caches the tracking data of the current signaling tracking task.
  • the MD5 values of each of the signaling tracking tasks are separately calculated, and the calculated MD5 values are stored in association with their corresponding signaling tracking tasks.
  • the first cache module 10 may further calculate a feature value of the signaling tracking task by using other algorithms, for example, using a SHA-1 algorithm (SHA-1 is compared with MD5 security). High, but consume more processing resources).
  • the sending module 20 is further configured to sequentially extract the stored MD5 values associated with each of the signaling tracking tasks; and use the extracted MD5 value as its associated letter each time the MD5 value is extracted. And tracking the resume request of the tracking task, and sending the extracted MD5 value to the service foreground according to the switched network management server; and continuing to sequentially, after receiving the sending success information returned by the network management server after the switching Extract other MD5 values.
  • the embodiment uses the calculated MD5 value as the tracking recovery request of the corresponding signaling tracking task, and sends a tracking recovery request in a serial manner, and only sends the next tracking after the current tracking recovery request is successfully sent.
  • the sending module 20 sequentially extracts the stored MD5 values associated with each of the signaling tracking tasks; and each time the MD5 value is extracted, the extracted MD5 value is used as its associated signaling tracking task.
  • the service foreground when receiving the switching notification sent by the current network management server, calculates the MD5 value of each signaling tracking task, and calculates each MD5 value and its corresponding signaling. Track task association storage. And receiving, by the service foreground, the tracking data of the buffered signaling tracking task associated with receiving the same MD5 value during the switching, when receiving the MD5 value sent by the network management server based on the switching, and The obtained tracking data is reported to the client through the switched network management server for display by the client.
  • the signaling tracking task is characterized by calculating the MD5 value, and the MD5 value is used as the tracking recovery request of the signaling tracking task, which ensures that the service platform feeds back the correct tracking data.
  • the length of the MD5 value is fixed to 128. Bits can also reduce the occupation of network resources.
  • the signaling tracking device further includes:
  • a masking module is used to mask the tracking task exit instruction during the switching.
  • the shielding module shields the tracking task exit instruction during the switching.
  • the following describes the link monitoring mechanism running on the client.
  • the client runs a link monitoring process, and the link monitoring process monitors the connection status between the client and the currently provided network management server in real time.
  • the network management server switches. During the period, the connection between the client and the currently provided network management server will be disconnected.
  • the link monitoring process will Trigger the trace task exit instruction.
  • the shielding module shields the tracking task exiting instruction triggered by the link monitoring process, and does not respond.
  • the shielding module may also suspend the running link monitoring process, and no longer perform link monitoring to avoid the signaling tracking task. Interrupt, and when the client receives the switch success notification sent by the switched network management server, resumes the suspended link monitoring process and continues link monitoring.
  • This embodiment can further ensure that the signaling tracking task is not interrupted by the network management server switching.
  • the present invention further provides a signaling tracking device.
  • the signaling tracking device includes:
  • the second cache module 110 is configured to continue to acquire and cache the tracking data of the current signaling tracking task when the service front desk receives the switching notification sent by the current network management server;
  • the signaling tracking device provided by the present invention is applied to a signaling tracking system.
  • the signaling tracking device in the signaling tracking system shown in FIG. 2, the signaling tracking device is built in the service foreground, and the client can open the letter in response to the user operation.
  • the task is tracked, and the signaling tracking task is distributed to the service network elements of the service foreground through the network management server (the main network management server) that provides the service.
  • the service network element sends the signaling flow to the client through the main network management server for the client to display.
  • the network management server is switched. When the network management server takes over the service provided by the main network management server, the client and the service network element maintain the signaling tracking state before the switching.
  • the client passes the network management server that provides the service.
  • the switched standby network management server loads the tracking data of the service network element during the switching, and continues to load the subsequent tracking data.
  • the client can be normal regardless of whether the network management server performs the switching. Display tracking tasks and data to improve the stability of signaling tracking.
  • the network management server currently providing the service runs a dual-machine monitoring process, and the dual-machine monitoring process is implemented.
  • the switchover command is detected, and when the switchover command is detected, the current network management server is notified to prepare for the dual-machine switchover.
  • the current network management server After receiving the notification of the dual-machine switching, the current network management server sends a switching notification to the client and the service front desk (including multiple service network elements), and receives the switching response success message fed back by the client and the service foreground. Double machine switching.
  • the client when receiving the switching notification sent by the current network management server, the client determines that the signaling tracking service cannot be obtained temporarily, and caches the current signaling tracking task and the tracking data of the signaling tracking task. After being cached, the client sends a switching response success message to the current network management server.
  • the second cache module 110 determines that the data reporting service is temporarily unavailable, and caches the current signaling tracking task and the tracking data of the signaling tracking task. After the buffering is completed, the second cache module 110 sends a switching response success message to the current network management server, and continues to acquire the tracking data, which is cached in the preset buffer area in the memory, but pauses and reports the acquired tracking data.
  • the second sending module 120 is configured to: when the service foreground of the service receives the tracking recovery request of the signaling tracking task sent by the client based on the switched network management server, the tracking of the signaling tracking task buffered during the switching The data is sent to the client based on the switched network management server.
  • the switched network management server sends a notification of successful handover to the client and the service foreground.
  • the signaling tracking system shown in FIG. After the two-node switchover is complete, the standby network management server takes over the service provided by the primary network management server, and the standby network management server sends a successful notification of the switching to the client and the service network elements in the service foreground.
  • the client Upon receiving the switching success notification sent by the network management server after the switching, the client determines that the signaling tracking service can be obtained normally, and sends the tracking recovery request of the signaling tracking task to the switched network management server after the switching.
  • the network management server forwards the received tracking recovery request to the service foreground.
  • the second sending module 120 When the second sending module 120 receives the tracking recovery request sent by the network management server after the switching, the second sending module 120 determines that the data reporting service can be obtained, and obtains the signaling tracking task corresponding to the tracking recovery request cached during the switching. Tracking the data, and the obtained tracking data is sent to the switched network management server based on the front end of the service, and the received tracking data is reported to the client by the switched network management server. In addition, the second sending module 120 reports the tracking data of the signaling tracking task that is subsequently acquired to the client through the switched network management server based on the service foreground.
  • the client After receiving the tracking data of the signaling tracking task returned by the network management server returned by the network management server returned by the network management server, the client obtains the cached tracking data, and obtains the cached tracking data and the received tracking data. Track data for consolidation.
  • the client may further display the Follow-up tracking data for users to view.
  • the second sending module 120 is further configured to: when the front end of the service is received by the client, the client is based on the switching.
  • the tracking recovery request of the signaling tracking task is sent by the network management server, extracting the identification information carried by the tracking recovery request, and acquiring the tracking of the buffered signaling tracking task associated with extracting the same identification information during the switching Data; and transmitting the acquired tracking data to the client based on the switched network management server.
  • the identification information in this embodiment is used to uniquely represent the signaling tracking task, and the identification information includes a task number assigned when the signaling tracking task is created, or a feature value calculated by using a related algorithm.
  • the pre-assigned task number is used as the identification information of the signaling tracking task
  • the task number is used as the tracking recovery request of the corresponding signaling tracking task.
  • the seventh embodiment of the signaling tracking device of the present invention is proposed.
  • the second cache module 110 is further configured to receive the current network management server when the service foreground of the service is received.
  • the fifth version MD5 value of the message digest algorithm of each of the signaling tracking tasks is calculated, and the calculated MD5 values are stored as identification information in association with their corresponding signaling tracking tasks.
  • the second cache module 110 calculates the MD5 value of the signaling tracking task to represent the signaling tracking task. Specifically, when the service front desk receives the switching notification sent by the current network management server, the second cache module 110 calculates the MD5 value of each signaling tracking task, and calculates the calculated MD5 value and its corresponding letter. Let the tracking task associate storage. It should be noted that, in other embodiments, the second cache module 110 may further calculate a feature value of the signaling tracking task by using other algorithms, for example, using a SHA-1 algorithm (SHA-1 is compared with MD5 security). High, but consume more processing resources).
  • SHA-1 is compared with MD5 security
  • the client calculates the MD5 value of the current signaling tracking task while buffering the tracking data of the current signaling tracking task.
  • the client calculates an MD5 value of each of the signaling tracking tasks, and stores the calculated MD5 values in association with their corresponding signaling tracking tasks.
  • the client Upon receiving the switching success notification sent by the network management server after the switching, the client extracts the MD5 value as the tracking recovery request of the associated signaling tracking task, and sends the extracted MD5 value based on the switched network management server. Before the business station.
  • the second sending module 120 is further configured to: when the service foreground of the service receives the tracking recovery request of the signaling tracking task sent by the client based on the switched network management server, extract the tracking recovery. Requesting the carried MD5 value, and acquiring the cached tracking data during the switching of the signaling tracking task associated with extracting the same MD5 value; and transmitting the acquired tracking data to the described network management server based on the switching Client.
  • the second sending module 120 extracts the MD5 value carried by the received tracking recovery request when the front end of the service receiving terminal receives the tracking recovery request sent by the network management server after the switching, And acquiring tracking data during the switching of the signaling tracking task associated with the tracking return request carrying the same MD5 value.
  • the second sending module 120 reports the acquired tracking data to the client through the switched network management server. For the client to display.
  • the signaling tracking task is characterized by calculating the MD5 value, and the MD5 value is used as the tracking recovery request of the signaling tracking task, which ensures that the service platform feeds back the correct tracking data.
  • the length of the MD5 value is fixed to 128. Bits can also reduce the occupation of network resources.
  • the signaling tracking device provided in the foregoing embodiment of the present application may be implemented by a hardware processor in combination with a software program.
  • the embodiment of the present invention further provides a signaling tracking device, for example, the signaling tracking device can be applied to a client, including:
  • a memory for storing processor executable instructions
  • processor is configured to:
  • the client Upon receiving the switching notification sent by the current network management server, the client caches the tracking data of the current signaling tracking task;
  • the client After receiving the switching success notification sent by the network management server after the switching, the client sends the tracking recovery request of the signaling tracking task to the service foreground based on the switched network management server, so that the service front desk receives the service according to the receiving
  • the trace recovery request returns tracking data of the signaling tracking task that it cached during the switching;
  • the embodiment of the present invention further provides a signaling tracking device, for example, the signaling tracking device can be applied to a service foreground, including:
  • a memory for storing processor executable instructions
  • processor is configured to:
  • the service foreground Upon receiving the switching notification sent by the current network management server, the service foreground continues to acquire and cache the tracking data of the current signaling tracking task;
  • the service front desk After receiving the tracking recovery request of the signaling tracking task sent by the client based on the switched network management server, the service front desk scans the tracking data of the signaling tracking task that is cached during the switching based on the network management after the switching The server sends to the client.
  • Embodiments of the present invention also provide a non-transitory computer readable storage medium having stored therein instructions that, when executed by a client, cause a processor in a client to implement a signaling tracking method,
  • the method includes the following steps:
  • the client Upon receiving the switching notification sent by the current network management server, the client caches the tracking data of the current signaling tracking task;
  • the client After receiving the switching success notification sent by the network management server after the switching, the client sends the tracking recovery request of the signaling tracking task to the service foreground based on the switched network management server, so that the service front desk receives the service according to the receiving
  • the trace recovery request returns tracking data of the signaling tracking task that it cached during the switching;
  • Embodiments of the present invention also provide a non-transitory computer readable storage medium having stored therein instructions that, when executed by a service foreground, cause a processor in a service foreground to implement a signaling tracking method,
  • the method includes the following steps:
  • the service foreground Upon receiving the switching notification sent by the current network management server, the service foreground continues to acquire and cache the tracking data of the current signaling tracking task;
  • the service front desk After receiving the tracking recovery request of the signaling tracking task sent by the client based on the switched network management server, the service front desk scans the tracking data of the signaling tracking task that is cached during the switching based on the network management after the switching The server sends to the client.
  • the signaling tracking method of the present application can be applied to the field of communications, and can be mainly applied to signaling tracking operations of the client and the service foreground.
  • the client and the service front maintain the signaling tracking state before the switching, and after the switching is successful, the client loads the service based on the network management server that provides the service after the switching.
  • the tracking data of the foreground during the switching is merged with the tracking data of the signaling tracking task cached before the switching, so that the client can obtain the tracking data normally, regardless of whether the network management server performs the switching, thereby improving the stability of the signaling tracking. .

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Abstract

本发明公开了一种信令跟踪方法，所述信令跟踪方法包括：在接收到当前的网管服务器发送的倒换通知时，客户端缓存当前的信令跟踪任务的跟踪数据；在接收到倒换后的网管服务器发送的倒换成功通知时，客户端基于倒换后的网管服务器发送信令跟踪任务的跟踪恢复请求至业务前台，以供业务前台根据接收的跟踪恢复请求返回其在倒换期间缓存的信令跟踪任务的跟踪数据；在接收到业务前台基于倒换后的网管服务器返回的信令跟踪任务在倒换期间的跟踪数据时，客户端将接收的跟踪数据与缓存的跟踪数据合并。本发明还公开了一种信令跟踪装置。本发明能够提高信令跟踪的稳定性。 (图1)

Description

信令跟踪方法及装置
本申请基于申请号为CN 201510963002.5、申请日为2015年12月17日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本发明涉及通信技术领域，尤其涉及一种信令跟踪方法及装置。
背景技术
在通信领域中，信令跟踪是网络维护中非常重要的组成部分，其用于跟踪各种信令的流程，为网管维护人员在日常维护中提供了分析问题、定位问题、解决问题的依据。
信令跟踪的重点在于监控信令的流向和协议处理的顺序，对实时性要求比较高。它是通过客户端开启信令跟踪任务，将任务通过网管服务器下发到业务网元，当业务网元上有信令流向后，将通过网管服务器上报给客户端进行展示。但是，若网管服务器在信令跟踪的过程中发生了主备倒换，客户端将失去与原来网管服务器的连接，无法接收到网管服务器的信令消息进行显示，导致本次信令跟踪任务失败。现有技术中，存在信令跟踪的稳定性较低的问题。
发明内容
本发明的主要目的在于提供一种信令跟踪方法及装置，旨在提高信令跟踪的稳定性。
为实现上述目的，本发明提供一种信令跟踪方法，所述信令跟踪方法包括：
在接收到当前的网管服务器发送的倒换通知时，客户端缓存当前的信令跟踪任务的跟踪数据；
在接收到倒换后的网管服务器发送的倒换成功通知时，所述客户端基于倒换后的所述网管服务器发送所述信令跟踪任务的跟踪恢复请求至业务前台，以供所述业务前台根据接收的所述跟踪恢复请求返回其在倒换期间缓存的所述信令跟踪任务的跟踪数据；
在接收到所述业务前台基于倒换后的所述网管服务器返回的所述信令跟踪任务在倒换期间的跟踪数据时，所述客户端将接收的跟踪数据与缓存的跟踪数据合并。
优选地，所述客户端基于倒换后的所述网管服务器发送所述信令跟踪任务的跟踪恢复请求至业务前台的步骤包括：
所述客户端依次提取各所述信令跟踪任务的识别信息；
在每次提取到识别信息时，所述客户端将提取的识别信息作为其对应的信令跟踪任务的跟踪恢复请求，并基于倒换后的所述网管服务器将提取的识别信息发送至所述业务前台；
在接收到倒换后的所述网管服务器返回的发送成功信息时，所述客户端继续按顺序提取其他识别信息。
优选地，所述客户端缓存当前的信令跟踪任务的跟踪数据的同时，还执行以下步骤：
所述客户端计算各所述信令跟踪任务的消息摘要算法第五版MD5值，并将计算的各MD5值作为识别信息与其对应的信令跟踪任务关联存储。
优选地，所述信令跟踪方法还包括：
所述客户端屏蔽倒换期间的跟踪任务退出指令。
进一步的，本发明还提供一种信令跟踪方法，所述信令跟踪方法包括：
在接收到当前的网管服务器发送的倒换通知时，业务前台继续获取并缓存当前的信令跟踪任务的跟踪数据；
在接收到客户端基于倒换后的网管服务器发送的所述信令跟踪任务的跟踪恢复请求时，所述业务前台将倒换期间缓存的所述信令跟踪任务的跟踪数据基于倒换后的所述网管服务器发送至所述客户端。
优选地，所述业务前台将倒换期间缓存的所述信令跟踪任务的跟踪数据基于倒换后的所述网管服务器发送至所述客户端的步骤包括：
在接收到客户端基于倒换后的网管服务器发送的所述信令跟踪任务的跟踪恢复请求时，所述业务前台提取所述跟踪恢复请求携带的识别信息，并获取缓存的与提取的相同识别信息所关联的信令跟踪任务在倒换期间的跟踪数据；
所述业务前台将获取的所述跟踪数据基于倒换后的所述网管服务器发送至所述客户端。
优选地，在接收到当前的网管服务器发送的倒换通知时，还执行以下步骤：
所述业务前台计算各所述信令跟踪任务的消息摘要算法第五版MD5值，并将计算的各MD5值作为识别信息与其对应的信令跟踪任务关联存储。
进一步的，本发明还提供了一种信令跟踪装置，所述信令跟踪装置包括：
第一缓存模块，用于当其所在客户端接收到当前的网管服务器发送的倒换通知时，缓存当前的信令跟踪任务的跟踪数据；
第一发送模块，用于当其所在客户端接收到倒换后的网管服务器发送的倒换成功通知时，基于倒换后的所述网管服务器发送所述信令跟踪任务的跟踪恢复请求至业务前台，以供所述业务前台根据接收的所述跟踪恢复请求返回其在倒换期间缓存的所述信令跟踪任 务的跟踪数据；
合并模块，用于当其所在客户端接收到所述业务前台基于倒换后的所述网管服务器返回的所述信令跟踪任务在倒换期间的跟踪数据时，将接收的跟踪数据与缓存的跟踪数据合并。
优选地，所述第一发送模块还用于依次提取各所述信令跟踪任务的识别信息；以及在每次提取到识别信息时，将提取的识别信息作为其对应的信令跟踪任务的跟踪恢复请求，并基于倒换后的所述网管服务器将提取的识别信息发送至所述业务前台；以及在接收到倒换后的所述网管服务器返回的发送成功信息时，继续按顺序提取其他识别信息。
优选地，所述第一缓存模块还用于计算各所述信令跟踪任务的消息摘要算法第五版MD5值，并将计算的各MD5值作为识别信息与其对应的信令跟踪任务关联存储。
优选地，所述信令跟踪装置还包括：
屏蔽模块，用于屏蔽倒换期间的跟踪任务退出指令。
进一步的，本发明还提供一种信令跟踪装置，所述信令跟踪装置包括：
第二缓存模块，用于当其所在业务前台接收到当前的网管服务器发送的倒换通知时，继续获取并缓存当前的信令跟踪任务的跟踪数据；
第二发送模块，用于当其所在业务前台接收到客户端基于倒换后的网管服务器发送的所述信令跟踪任务的跟踪恢复请求时，将倒换期间缓存的所述信令跟踪任务的跟踪数据基于倒换后的所述网管服务器发送至所述客户端。
优选地，所述第二发送模块还用于当其所在业务前台接收到客户端基于倒换后的网管服务器发送的所述信令跟踪任务的跟踪恢复请求时，提取所述跟踪恢复请求携带的识别信息，并获取缓存的与提取相同的识别信息所关联的信令跟踪任务在倒换期间的跟踪数据；以及将获取的所述跟踪数据基于倒换后的所述网管服务器发送至所述客户端。
优选地，所述第二缓存模块还用于当其所在业务前台接收到当前的网管服务器发送的倒换通知时，计算各所述信令跟踪任务的消息摘要算法第五版MD5值，并将计算的各MD5值作为识别信息与其对应的信令跟踪任务关联存储。
本发明提出的信令跟踪方法及装置，在网管服务器进行倒换操作时，客户端以及业务前台维持倒换前的信令跟踪状态，并在倒换成功后，由客户端基于倒换后提供服务的网管服务器加载业务前台在倒换期间的跟踪数据，并与倒换前缓存的信令跟踪任务的跟踪数据合并，使得无论网管服务器是否进行倒换，客户端都能够正常获得跟踪数据，从而达到提高信令跟踪稳定性的目的。
附图说明
图1为本发明信令跟踪方法第一实施例的流程示意图；
图2为本发明信令跟踪方法应用的信令跟踪系统的拓扑结构示例图；
图3为本发明信令跟踪方法第四实施例的流程示意图；
图4为本发明信令跟踪装置第一实施例的功能模块示意图；
图5为本发明信令跟踪装置第四实施例的功能模块示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明提供一种信令跟踪方法，参照图1，在本发明信令跟踪方法的第一实施例中，所述信令跟踪方法包括：
步骤S10，在接收到当前的网管服务器发送的倒换通知时，客户端缓存当前的信令跟踪任务的跟踪数据；
本发明提出的信令跟踪方法应用于信令跟踪系统，参照图2，在如图2所示的信令跟踪系统中，客户端可以响应用户操作开启信令跟踪任务，并将信令跟踪任务通过当前提供服务的网管服务器(主网管服务器)分发至业务前台的各业务网元。业务网元在有信令流向后，通过主网管服务器将信令流向发送至客户端，供客户端显示。其中，在进行网管服务器倒换，即备网管服务器接管主网管服务器提供服务时，客户端以及业务网元维持倒换前的信令跟踪状态，并在倒换成功后，客户端通过当前提供服务的网管服务器(倒换后的备网管服务器)加载业务网元在倒换期间的跟踪数据，并继续加载后续的跟踪数据，保证在客户端启动信令跟踪任务以后，无论网管服务器是否进行倒换，客户端都能够正常显示跟踪任务和数据，达到提高信令跟踪稳定性的目的。
本实施例中，当前提供服务的网管服务器运行有双机监控进程，双机监控进程实时侦测倒换指令，并在侦测到倒换指令时，通知当前的网管服务器准备进行双机倒换。所述当前网管服务器在接收到双机倒换通知后，向客户端以及业务前台(包括多个业务网元)发出倒换通知，并在接收到客户端以及业务前台反馈的倒换响应成功消息时，进行双机倒换。
具体的，所述客户端在接收到当前的网管服务器发送的倒换通知时，判定暂时无法获得信令跟踪服务，并缓存当前的信令跟踪任务以及所述信令跟踪任务的跟踪数据，在完成缓存后，所述客户端向当前的网管服务器发送倒换响应成功消息。
所述业务前台在接收到当前的网管服务器发送的倒换通知时，判定暂时无法获得 数据上报服务，缓存当前的信令跟踪任务以及所述信令跟踪任务的跟踪数据，在完成缓存后，所述业务前台向当前的网管服务器发送倒换响应成功消息，并继续获取跟踪数据，缓存在内存中的预设缓存区中，但暂停上报获取的跟踪数据。
步骤S20，在接收到倒换后的网管服务器发送的倒换成功通知时，所述客户端基于倒换后的所述网管服务器发送所述信令跟踪任务的跟踪恢复请求至业务前台，以供所述业务前台根据接收的所述跟踪恢复请求返回其在倒换期间缓存的所述信令跟踪任务的跟踪数据；
本实施例中，在完成双机倒换之后，倒换后的网管服务器将发送倒换成功通知至所述客户端以及所述业务前台，例如，参照图2，在如图2所示的信令跟踪系统中，在完成双机倒换之后，备网管服务器将接管主网管服务器提供服务，备网管服务器发送倒换成功通知至所述客户端以及业务前台的各业务网元。
在接收到倒换后的网管服务器发送的倒换成功通知时，客户端判定当前可正常获取信令跟踪服务，发送所述信令跟踪任务的跟踪恢复请求至倒换后的所述网管服务器，由倒换后的所述网管服务器将接收的跟踪恢复请求转发至所述业务前台。
业务前台在接收到倒换后的所述网管服务器发送的跟踪恢复请求时，判定能够获得数据上报服务，获取倒换期间缓存的所述跟踪恢复请求对应的信令跟踪任务的跟踪数据，并将获取的跟踪数据发送至倒换后的所述网管服务器，由倒换后的所述网管服务器将接收的跟踪数据上报至所述客户端。此外，所述业务前台将后续获取的所述信令跟踪任务的跟踪数据同样通过倒换后的所述网管服务器上报至所述客户端。
步骤S30，在接收到所述业务前台基于倒换后的所述网管服务器返回的所述信令跟踪任务在倒换期间的跟踪数据时，所述客户端将接收的跟踪数据与缓存的跟踪数据合并。
在接收到所述业务前台基于倒换后的所述网管服务器返回的所述信令跟踪任务在倒换期间的跟踪数据时，所述客户端获取缓存的跟踪数据，并将缓存的跟踪数据与接收的跟踪数据进行合并。
进一步的，在本实施例中，在完成跟踪数据的合并后，所述客户端还可以显示合并后的跟踪数据，供用户查看。
本实施例提出的信令跟踪方法，在网管服务器进行倒换操作时，客户端以及业务前台维持倒换前的信令跟踪状态，并在倒换成功后，由客户端基于倒换后提供服务的网管服务器加载业务前台在倒换期间的跟踪数据，并与倒换前缓存的信令跟踪任务的跟踪数据合并，使得无论网管服务器是否进行倒换，客户端都能够正常获得跟踪数据，从而达到提高信令跟踪稳定性的目的。
进一步的，基于第一实施例，提出本发明信令跟踪方法的第二实施例，在本实施例中，所述步骤S20包括：
所述客户端依次提取各所述信令跟踪任务的识别信息；
在每次提取到识别信息时，所述客户端将提取的识别信息作为其对应的信令跟踪任务的跟踪恢复请求，并基于倒换后的所述网管服务器将提取的识别信息发送至所述业务前台；
在接收到倒换后的所述网管服务器返回的发送成功信息时，所述客户端继续按顺序提取其他识别信息。
需要说明的是，本实施例所述的识别信息用于唯一表征信令跟踪任务，所述识别信息包括在创建信令跟踪任务时分配的任务号，或者采用相关算法计算的特征值等。例如，本实施例采用预分配的任务号作为信令跟踪任务的识别信息，并将任务号作为对应的信令跟踪任务的跟踪恢复请求，采用串行的方式下发至业务前台，只有当前条跟踪恢复请求发送成功后才发送下一条跟踪恢复请求，具体的，所述客户端依次提取各所述信令跟踪任务关联的任务号；在每次提取到任务号时，所述客户端将提取的任务号作为其关联的信令跟踪任务的跟踪恢复请求，并基于倒换后的所述网管服务器将提取的任务号发送至所述业务前台；在接收到倒换后的所述网管服务器返回的发送成功信息时，所述客户端继续按顺序提取其他任务号，直至将存储的各任务号均下发至所述业务前台，使得各信令跟踪任务能够恢复。
进一步的，基于第二实施例，提出本发明信令跟踪方法的第三实施例，在本实施例中，在执行步骤S10的同时，还执行以下步骤：
所述客户端计算各所述信令跟踪任务的消息摘要算法第五版MD5值，并将计算的各MD5值作为识别信息与其对应的信令跟踪任务关联存储。
需要说明的是，MD5(Message-Digest Algorithm，信息-摘要算法5，也称作摘要算法、哈希算法)为广泛使用的杂凑算法之一，其将数据(如汉字)运算为另一固定长度值，用以提供数据的完整性保护。该算法的文件号为RFC 1321(R.Rivest,MIT Laboratory for Computer Science and RSA Data Security Inc.April 1992)。MD5算法具有以下特点：
1、压缩性：任意长度的数据，算出的MD5值长度都是固定的。
2、容易计算：从原数据计算出MD5值很容易。
3、抗修改性：对原数据进行任何改动，哪怕只修改1个字节，所得到的MD5值都有很大区别。
4、强抗碰撞：已知原数据和其MD5值，想找到一个具有相同MD5值的数据(即 伪造数据)是非常困难的。
考虑到MD5算法的如上特点，本实施例计算信令跟踪任务的MD5值作为识别信息表征信令跟踪任务，具体的，所述客户端在缓存当前的信令跟踪任务的跟踪数据的同时，还分别计算各所述信令跟踪任务的MD5值，并将计算的各MD5值与其对应的信令跟踪任务关联存储。需要说明的是，在其他实施例中，还可以采用其他算法计算信令跟踪任务的特征值，例如，采用SHA-1算法(SHA-1相较于MD5安全性较高，但消耗更多处理资源)。
在本实施例中，所述步骤S20包括：
所述客户端依次提取存储的各所述信令跟踪任务关联的MD5值；
在每次提取到MD5值时，所述客户端将提取的MD5值作为其关联的信令跟踪任务的跟踪恢复请求，并基于倒换后的所述网管服务器将提取的MD5值发送至所述业务前台；
在接收到倒换后的所述网管服务器返回的发送成功信息时，所述客户端继续按顺序提取其他MD5值。
基于前述描述，本实施例将计算的MD5值作为对应的信令跟踪任务的跟踪恢复请求，并采用串行的方式下发跟踪恢复请求，只有当前条跟踪恢复请求发送成功后才发送下一条跟踪恢复请求，具体的，所述客户端依次提取存储的各所述信令跟踪任务关联的MD5值；在每次提取到MD5值时，所述客户端将提取的MD5值作为其关联的信令跟踪任务的跟踪恢复请求，并基于倒换后的所述网管服务器将提取的MD5值发送至所述业务前台；在接收到倒换后的所述网管服务器返回的发送成功信息时，所述客户端继续按顺序提取其他MD5值，直至将存储的各MD5值均下发至所述业务前台，使得各信令跟踪任务能够恢复。
相应的，在本实施例中，所述业务前台在接收到当前的网管服务器发送的倒换通知时，计算各所述信令跟踪任务的MD5值，并将计算的各MD5值与其对应的信令跟踪任务关联存储。所述业务前台在接收到所述客户端基于倒换后的所述网管服务器发送的MD5值时，获取缓存的与接收相同的MD5值所关联的信令跟踪任务在倒换期间的跟踪数据，并将获取的跟踪数据通过倒换后的所述网管服务器上报至所述客户端，供所述客户端显示。
本实施例通过计算MD5值表征信令跟踪任务，并将MD5值作为其表征的信令跟踪任务的跟踪恢复请求，能够确保业务平台反馈正确的跟踪数据，此外，由于MD5值的长度固定为128位，还能够降低对网络资源的占用。
进一步的，基于前述任一实施例，提出本发明信令跟踪方法的第四实施例，在本 实施例中，所述信令跟踪方法还包括：
所述客户端屏蔽倒换期间的跟踪任务退出指令。
需要说明的是，现有技术中，运行着多种机制以确保信令跟踪任务在无法继续进行时，释放信令跟踪任务，避免不必要网络资源的占用。在本实施例中，为确保客户端在网管服务器倒换期间不退出信令跟踪任务，所述客户端屏蔽倒换期间的跟踪任务退出指令。以下以客户端运行的链路监测机制进行说明。
客户端运行有链路监测进程，链路监测进程实时监测客户端与当前提供服务的网管服务器之间的连接状态(基于前述实施例的描述，本领域技术人员可以理解的是，在网管服务器倒换期间，客户端与当前提供服务的网管服务器之间的连接将断开)，链路监测进程在侦测到所述客户端与当前提供服务的所述网管服务器之间的连接断开时，将触发跟踪任务退出指令。此时，所述客户端屏蔽链路监测进程触发的跟踪任务退出指令，不进行响应。
可选地，所述客户端在接收到当前的网管服务器发送的倒换通知时，还可以将运行的链路监测进程挂起，不再进行链路监测，以避免信令跟踪任务中断。在接收到倒换后的网管服务器发送的倒换成功通知时，恢复挂起的链路监测进程，继续进行链路监测。
本实施例能够进一步确保信令跟踪任务不会由网管服务器倒换而中断。
本发明还提供一种信令跟踪方法，参照图3，在本发明信令跟踪方法的第五实施例中，所述信令跟踪方法包括：
步骤S110，在接收到当前的网管服务器发送的倒换通知时，业务前台继续获取并缓存当前的信令跟踪任务的跟踪数据；
本发明提出的信令跟踪方法应用于信令跟踪系统，参照图2，在如图2所示的信令跟踪系统中，客户端可以响应用户操作开启信令跟踪任务，并将信令跟踪任务通过当前提供服务的网管服务器(主网管服务器)分发至业务前台的各业务网元。业务网元在有信令流向后，通过主网管服务器将信令流向发送至客户端，供客户端显示。其中，在进行网管服务器倒换，即备网管服务器接管主网管服务器提供服务时，客户端以及业务网元维持倒换前的信令跟踪状态，并在倒换成功后，客户端通过当前提供服务的网管服务器(倒换后的备网管服务器)加载业务网元在倒换期间的跟踪数据，并继续加载后续的跟踪数据，保证在客户端启动信令跟踪任务以后，无论网管服务器是否进行倒换，客户端都能够正常显示跟踪任务和数据，达到提高信令跟踪稳定性的目的。
本实施例中，当前提供服务的网管服务器运行有双机监控进程，双机监控进程实 时侦测倒换指令，并在侦测到倒换指令时，通知当前的网管服务器准备进行双机倒换。所述当前网管服务器在接收到双机倒换通知后，向客户端以及业务前台(包括多个业务网元)发出倒换通知，并在接收到客户端以及业务前台反馈的倒换响应成功消息时，进行双机倒换。
具体的，所述客户端在接收到当前的网管服务器发送的倒换通知时，判定暂时无法获得信令跟踪服务，并缓存当前的信令跟踪任务以及所述信令跟踪任务的跟踪数据，在完成缓存后，所述客户端向当前的网管服务器发送倒换响应成功消息。
所述业务前台在接收到当前的网管服务器发送的倒换通知时，判定暂时无法获得数据上报服务，缓存当前的信令跟踪任务以及所述信令跟踪任务的跟踪数据，在完成缓存后，所述业务前台向当前的网管服务器发送倒换响应成功消息，并继续获取跟踪数据，缓存在内存中的预设缓存区中，但暂停上报获取的跟踪数据。
步骤S120，在接收到客户端基于倒换后的网管服务器发送的所述信令跟踪任务的跟踪恢复请求时，所述业务前台将倒换期间缓存的所述信令跟踪任务的跟踪数据基于倒换后的所述网管服务器发送至所述客户端。
本实施例中，在完成双机倒换之后，倒换后的网管服务器将发送倒换成功通知至所述客户端以及所述业务前台，例如，参照图2，在如图2所示的信令跟踪系统中，在完成双机倒换之后，备网管服务器将接管主网管服务器提供服务，备网管服务器发送倒换成功通知至所述客户端以及业务前台的各业务网元。
在接收到倒换后的网管服务器发送的倒换成功通知时，客户端判定当前可正常获取信令跟踪服务，发送所述信令跟踪任务的跟踪恢复请求至倒换后的所述网管服务器，由倒换后的所述网管服务器将接收的跟踪恢复请求转发至所述业务前台。
业务前台在接收到倒换后的所述网管服务器发送的跟踪恢复请求时，判定能够获得数据上报服务，获取倒换期间缓存的所述跟踪恢复请求对应的信令跟踪任务的跟踪数据，并将获取的跟踪数据发送至倒换后的所述网管服务器，由倒换后的所述网管服务器将接收的跟踪数据上报至所述客户端。此外，所述业务前台将后续获取的所述信令跟踪任务的跟踪数据同样通过倒换后的所述网管服务器上报至所述客户端。
所述客户端在接收到所述业务前台基于倒换后的所述网管服务器返回的所述信令跟踪任务在倒换期间的跟踪数据时，获取缓存的跟踪数据，并将缓存的跟踪数据与接收的跟踪数据进行合并。
进一步的，在本实施例中，在完成跟踪数据的合并后，所述客户端还可以显示合并后的跟踪数据，供用户查看。
进一步的，基于第五实施例，提出本发明信令跟踪方法的第六实施例，在本实施 例中，所述步骤S120包括：
在接收到客户端基于倒换后的网管服务器发送的所述信令跟踪任务的跟踪恢复请求时，所述业务前台提取所述跟踪恢复请求携带的识别信息，并获取缓存的与提取的相同识别信息所关联的信令跟踪任务在倒换期间的跟踪数据；
所述业务前台将获取的所述跟踪数据基于倒换后的所述网管服务器发送至所述客户端。
需要说明的是，本实施例所述的识别信息用于唯一表征信令跟踪任务，所述识别信息包括在创建信令跟踪任务时分配的任务号，或者采用相关算法计算的特征值等。例如，本实施例采用预分配的任务号作为信令跟踪任务的识别信息，并将任务号作为对应的信令跟踪任务的跟踪恢复请求。所述业务前台在接收到所述客户端基于倒换后的所述网管服务器发送的跟踪恢复请求时，提取接收的跟踪恢复请求所携带的任务号，并获取与所述跟踪恢复请求携带相同的任务号所关联的信令跟踪任务在倒换期间的跟踪数据。在获取到与接收相同的任务号所关联的信令跟踪任务在倒换期间的跟踪数据时，将获取的跟踪数据通过倒换后的所述网管服务器上报至所述客户端。
进一步的，基于第六实施例，提出本发明信令跟踪方法的第七实施例，在本实施例中，在接收到当前的网管服务器发送的倒换通知时，还执行以下步骤：
所述业务前台计算各所述信令跟踪任务的消息摘要算法第五版MD5值，并将计算的各MD5值作为识别信息与其对应的信令跟踪任务关联存储。
在本实施例中，考虑到MD5算法的压缩性、容易计算、抗修改性以及强抗碰撞等特点，所述业务前台计算信令跟踪任务的MD5值用以表征信令跟踪任务。具体的，在接收到当前的网管服务器发送的倒换通知时，计算各所述信令跟踪任务的MD5值，并将计算的各MD5值与其对应的信令跟踪任务关联存储。需要说明的是，在其他实施例中，还可以采用其他算法计算信令跟踪任务的特征值，例如，采用SHA-1算法(SHA-1相较于MD5安全性较高，但消耗更多处理资源)。
相应的，所述客户端在缓存当前的信令跟踪任务的跟踪数据的同时，还计算当前信令跟踪任务的MD5值。其中，所述客户端计算各所述信令跟踪任务的MD5值，并将计算的各MD5值与其对应的信令跟踪任务关联存储。在接收到倒换后的网管服务器发送的倒换成功通知时，所述客户端提取MD5值作为其关联的信令跟踪任务的跟踪恢复请求，并基于倒换后的所述网管服务器将提取的MD5值发送至所述业务前台。
在本实施例中，所述步骤S120包括：
在接收到客户端基于倒换后的网管服务器发送的所述信令跟踪任务的跟踪恢复 请求时，所述业务前台提取所述跟踪恢复请求携带的MD5值，并获取缓存的与提取的相同MD5值所关联的信令跟踪任务在倒换期间的跟踪数据；
所述业务前台将获取的所述跟踪数据基于倒换后的所述网管服务器发送至所述客户端。
本实施例中，所述业务前台在接收到所述客户端基于倒换后的所述网管服务器发送的跟踪恢复请求时，提取接收的跟踪恢复请求所携带的MD5值，并获取与所述跟踪恢复请求携带相同的MD5值所关联的信令跟踪任务在倒换期间的跟踪数据。在获取到与接收相同的MD5值所关联的信令跟踪任务在倒换期间的跟踪数据时，将获取的跟踪数据通过倒换后的所述网管服务器上报至所述客户端，供所述客户端显示。
本实施例通过计算MD5值表征信令跟踪任务，并将MD5值作为其表征的信令跟踪任务的跟踪恢复请求，能够确保业务平台反馈正确的跟踪数据，此外，由于MD5值的长度固定为128位，还能够降低对网络资源的占用。
进一步的，本发明还提供一种信令跟踪装置，参照图4，在本发明信令跟踪装置的第一实施例中，所述信令跟踪装置包括：
第一缓存模块10，用于当其所在客户端接收到当前的网管服务器发送的倒换通知时，缓存当前的信令跟踪任务的跟踪数据；
本发明提出的信令跟踪装置应用于信令跟踪系统，参照图2，在如图2所示的信令跟踪系统中，信令跟踪装置内置于客户端运行，客户端可以响应用户操作开启信令跟踪任务，并将信令跟踪任务通过当前提供服务的网管服务器(主网管服务器)分发至业务前台的各业务网元。业务网元在有信令流向后，通过主网管服务器将信令流向发送至客户端，供客户端显示。其中，在进行网管服务器倒换，即备网管服务器接管主网管服务器提供服务时，客户端以及业务网元维持倒换前的信令跟踪状态，并在倒换成功后，客户端通过当前提供服务的网管服务器(倒换后的备网管服务器)加载业务网元在倒换期间的跟踪数据，并继续加载后续的跟踪数据，保证在客户端启动信令跟踪任务以后，无论网管服务器是否进行倒换，客户端都能够正常显示跟踪任务和数据，达到提高信令跟踪稳定性的目的。
本实施例中，当前提供服务的网管服务器运行有双机监控进程，双机监控进程实时侦测倒换指令，并在侦测到倒换指令时，通知当前的网管服务器准备进行双机倒换。所述当前网管服务器在接收到双机倒换通知后，向客户端以及业务前台(包括多个业务网元)发出倒换通知，并在接收到客户端以及业务前台反馈的倒换响应成功消息时，进行双机倒换。
具体的，第一缓存模块10当其所在客户端接收到当前的网管服务器发送的倒换 通知时，判定暂时无法获得信令跟踪服务，缓存当前的信令跟踪任务以及所述信令跟踪任务的跟踪数据，在完成缓存后，所述第一缓存模块10基于其所在客户端向当前的网管服务器发送倒换响应成功消息。
所述业务前台在接收到当前的网管服务器发送的倒换通知时，判定暂时无法获得数据上报服务，缓存当前的信令跟踪任务以及所述信令跟踪任务的跟踪数据，在完成缓存后，所述业务前台向当前的网管服务器发送倒换响应成功消息，并继续获取跟踪数据，缓存在内存中的预设缓存区中，但暂停上报获取的跟踪数据。
第一发送模块20，用于当其所在客户端接收到倒换后的网管服务器发送的倒换成功通知时，基于倒换后的所述网管服务器发送所述信令跟踪任务的跟踪恢复请求至业务前台，以供所述业务前台根据接收的所述跟踪恢复请求返回其在倒换期间缓存的所述信令跟踪任务的跟踪数据；
本实施例中，在完成双机倒换之后，倒换后的网管服务器将发送倒换成功通知至所述客户端以及所述业务前台，例如，参照图2，在如图2所示的信令跟踪系统中，在完成双机倒换之后，备网管服务器将接管主网管服务器提供服务，备网管服务器发送倒换成功通知至所述客户端以及业务前台的各业务网元。
第一发送模块20当其所在客户端接收到倒换后的网管服务器发送的倒换成功通知时，判定当前可正常获取信令跟踪服务，发送所述信令跟踪任务的跟踪恢复请求至倒换后的所述网管服务器，由倒换后的所述网管服务器将接收的跟踪恢复请求转发至所述业务前台。
业务前台在接收到倒换后的所述网管服务器发送的跟踪恢复请求时，判定能够获得数据上报服务，获取倒换期间缓存的所述跟踪恢复请求对应的信令跟踪任务的跟踪数据，并将获取的跟踪数据发送至倒换后的所述网管服务器，由倒换后的所述网管服务器将接收的跟踪数据上报至所述客户端。此外，所述业务前台将后续获取的所述信令跟踪任务的跟踪数据同样通过倒换后的所述网管服务器上报至所述客户端。
合并模块30，用于当其所在客户端接收到所述业务前台基于倒换后的所述网管服务器返回的所述信令跟踪任务在倒换期间的跟踪数据时，将接收的跟踪数据与缓存的跟踪数据合并。
合并模块30当其所在客户端接收到所述业务前台基于倒换后的所述网管服务器返回的所述信令跟踪任务在倒换期间的跟踪数据时，获取缓存的跟踪数据，并将缓存的跟踪数据与接收的跟踪数据进行合并。
进一步的，在本实施例中，所述信令跟踪装置还包括显示模块，用于在完成跟踪数据的合并后，基于其所在客户端显示合并后的跟踪数据，供用户查看。
本实施例提出的信令跟踪装置，内置于客户端运行，在网管服务器进行倒换操作时，客户端以及业务前台维持倒换前的信令跟踪状态，并在倒换成功后，由客户端基于倒换后提供服务的网管服务器加载业务前台在倒换期间的跟踪数据，并与倒换前缓存的信令跟踪任务的跟踪数据合并，使得无论网管服务器是否进行倒换，客户端都能够正常获得跟踪数据，从而达到提高信令跟踪稳定性的目的。
进一步的，基于第一实施例，提出本发明信令跟踪装置的第二实施例，在本实施例中，所述第一发送模块20还用于依次提取各所述信令跟踪任务的识别信息；以及在每次提取到识别信息时，将提取的识别信息作为其对应的信令跟踪任务的跟踪恢复请求，并基于倒换后的所述网管服务器将提取的识别信息发送至所述业务前台；以及在接收到倒换后的所述网管服务器返回的发送成功信息时，继续按顺序提取其他识别信息。
需要说明的是，本实施例所述的识别信息用于唯一表征信令跟踪任务，所述识别信息包括在创建信令跟踪任务时分配的任务号，或者采用相关算法计算的特征值等。例如，本实施例采用预分配的任务号作为信令跟踪任务的识别信息，并将任务号作为对应的信令跟踪任务的跟踪恢复请求，采用串行的方式下发至业务前台，只有当前条跟踪恢复请求发送成功后才发送下一条跟踪恢复请求，具体的，所述第一发送模块20依次提取各所述信令跟踪任务关联的任务号；在每次提取到任务号时，所述第一发送模块20将提取的任务号作为其关联的信令跟踪任务的跟踪恢复请求，并基于倒换后的所述网管服务器将提取的任务号发送至所述业务前台；在接收到倒换后的所述网管服务器返回的发送成功信息时，所述第一发送模块20继续按顺序提取其他任务号，直至将存储的各任务号均下发至所述业务前台，使得各信令跟踪任务能够恢复。
进一步的，基于第二实施例，提出本发明信令跟踪装置的第三实施例，在本实施例中，所述第一缓存模块10还用于计算各所述信令跟踪任务的消息摘要算法第五版MD5值，并将计算的各MD5值作为识别信息与其对应的信令跟踪任务关联存储。
需要说明的是，MD5(Message-Digest Algorithm，信息-摘要算法5，也称作摘要算法、哈希算法)为广泛使用的杂凑算法之一，其将数据(如汉字)运算为另一固定长度值，用以提供数据的完整性保护。该算法的文件号为RFC 1321(R.Rivest,MIT Laboratory for Computer Science and RSA Data Security Inc.April 1992)。MD5算法具有以下特点：
1、压缩性：任意长度的数据，算出的MD5值长度都是固定的。
2、容易计算：从原数据计算出MD5值很容易。
3、抗修改性：对原数据进行任何改动，哪怕只修改1个字节，所得到的MD5 值都有很大区别。
4、强抗碰撞：已知原数据和其MD5值，想找到一个具有相同MD5值的数据(即伪造数据)是非常困难的。
考虑到MD5算法的如上特点，本实施例计算信令跟踪任务的MD5值作为识别信息表征信令跟踪任务，具体的，所述第一缓存模块10在缓存当前的信令跟踪任务的跟踪数据的同时，还分别计算各所述信令跟踪任务的MD5值，并将计算的各MD5值与其对应的信令跟踪任务关联存储。需要说明的是，在其他实施例中，所述第一缓存模块10还可以采用其他算法计算信令跟踪任务的特征值，例如，采用SHA-1算法(SHA-1相较于MD5安全性较高，但消耗更多处理资源)。
在本实施例中，所述发送模块20还用于依次提取存储的各所述信令跟踪任务关联的MD5值；以及在每次提取到MD5值时，将提取的MD5值作为其关联的信令跟踪任务的跟踪恢复请求，并基于倒换后的所述网管服务器将提取的MD5值发送至所述业务前台；以及在接收到倒换后的所述网管服务器返回的发送成功信息时，继续按顺序提取其他MD5值。
基于前述描述，本实施例将计算的MD5值作为对应的信令跟踪任务的跟踪恢复请求，并采用串行的方式下发跟踪恢复请求，只有当前条跟踪恢复请求发送成功后才发送下一条跟踪恢复请求，具体的，所述发送模块20依次提取存储的各所述信令跟踪任务关联的MD5值；以及在每次提取到MD5值时，将提取的MD5值作为其关联的信令跟踪任务的跟踪恢复请求，并基于倒换后的所述网管服务器将提取的MD5值发送至所述业务前台；以及在基于其所在客户端接收到倒换后的所述网管服务器返回的发送成功信息时，继续按顺序提取其他MD5值，直至将存储的各MD5值均下发至所述业务前台，使得各信令跟踪任务能够恢复。
相应的，在本实施例中，所述业务前台在接收到当前的网管服务器发送的倒换通知时，计算各所述信令跟踪任务的MD5值，并将计算的各MD5值与其对应的信令跟踪任务关联存储。所述业务前台在接收到所述客户端基于倒换后的所述网管服务器发送的MD5值时，获取缓存的与接收相同的MD5值所关联的信令跟踪任务在倒换期间的跟踪数据，并将获取的跟踪数据通过倒换后的所述网管服务器上报至所述客户端，供所述客户端显示。
本实施例通过计算MD5值表征信令跟踪任务，并将MD5值作为其表征的信令跟踪任务的跟踪恢复请求，能够确保业务平台反馈正确的跟踪数据，此外，由于MD5值的长度固定为128位，还能够降低对网络资源的占用。
进一步的，基于前述任一实施例，提出本发明信令跟踪装置的第四实施例，在本 实施例中，所述信令跟踪装置还包括：
屏蔽模块，用于屏蔽倒换期间的跟踪任务退出指令。
需要说明的是，现有技术中，运行着多种机制以确保信令跟踪任务在无法继续进行时，释放信令跟踪任务，避免不必要网络资源的占用。在本实施例中，为确保客户端在网管服务器倒换期间不退出信令跟踪任务，所述屏蔽模块屏蔽倒换期间的跟踪任务退出指令。以下以客户端运行的链路监测机制进行说明。
客户端运行有链路监测进程，链路监测进程实时监测客户端与当前提供服务的网管服务器之间的连接状态(基于前述实施例的描述，本领域技术人员可以理解的是，在网管服务器倒换期间，客户端与当前提供服务的网管服务器之间的连接将断开)，链路监测进程在侦测到所述客户端与当前提供服务的所述网管服务器之间的连接断开时，将触发跟踪任务退出指令。此时，所述屏蔽模块屏蔽链路监测进程触发的跟踪任务退出指令，不进行响应。
可选地，所述屏蔽模块当其所在客户端接收到当前的网管服务器发送的倒换通知时，还可以将运行的链路监测进程挂起，不再进行链路监测，以避免信令跟踪任务中断，并当其所在客户端接收到倒换后的网管服务器发送的倒换成功通知时，恢复挂起的链路监测进程，继续进行链路监测。
本实施例能够进一步确保信令跟踪任务不会由网管服务器倒换而中断。
本发明还提供一种信令跟踪装置，参照图5，在本发明信令跟踪装置的第五实施例中，所述信令跟踪装置包括：
第二缓存模块110，用于当其所在业务前台接收到当前的网管服务器发送的倒换通知时，继续获取并缓存当前的信令跟踪任务的跟踪数据；
本发明提出的信令跟踪装置应用于信令跟踪系统，参照图2，在如图2所示的信令跟踪系统中，信令跟踪装置内置于业务前台运行，客户端可以响应用户操作开启信令跟踪任务，并将信令跟踪任务通过当前提供服务的网管服务器(主网管服务器)分发至业务前台的各业务网元。业务网元在有信令流向后，通过主网管服务器将信令流向发送至客户端，供客户端显示。其中，在进行网管服务器倒换，即备网管服务器接管主网管服务器提供服务时，客户端以及业务网元维持倒换前的信令跟踪状态，并在倒换成功后，客户端通过当前提供服务的网管服务器(倒换后的备网管服务器)加载业务网元在倒换期间的跟踪数据，并继续加载后续的跟踪数据，保证在客户端启动信令跟踪任务以后，无论网管服务器是否进行倒换，客户端都能够正常显示跟踪任务和数据，达到提高信令跟踪稳定性的目的。
本实施例中，当前提供服务的网管服务器运行有双机监控进程，双机监控进程实 时侦测倒换指令，并在侦测到倒换指令时，通知当前的网管服务器准备进行双机倒换。所述当前网管服务器在接收到双机倒换通知后，向客户端以及业务前台(包括多个业务网元)发出倒换通知，并在接收到客户端以及业务前台反馈的倒换响应成功消息时，进行双机倒换。
具体的，所述客户端在接收到当前的网管服务器发送的倒换通知时，判定暂时无法获得信令跟踪服务，并缓存当前的信令跟踪任务以及所述信令跟踪任务的跟踪数据，在完成缓存后，所述客户端向当前的网管服务器发送倒换响应成功消息。
第二缓存模块110当其所在业务前台在接收到当前的网管服务器发送的倒换通知时，判定暂时无法获得数据上报服务，缓存当前的信令跟踪任务以及所述信令跟踪任务的跟踪数据，在完成缓存后，所述第二缓存模块110向当前的网管服务器发送倒换响应成功消息，并继续获取跟踪数据，缓存在内存中的预设缓存区中，但暂停上报获取的跟踪数据。
第二发送模块120，用于当其所在业务前台接收到客户端基于倒换后的网管服务器发送的所述信令跟踪任务的跟踪恢复请求时，将倒换期间缓存的所述信令跟踪任务的跟踪数据基于倒换后的所述网管服务器发送至所述客户端。
本实施例中，在完成双机倒换之后，倒换后的网管服务器将发送倒换成功通知至所述客户端以及所述业务前台，例如，参照图2，在如图2所示的信令跟踪系统中，在完成双机倒换之后，备网管服务器将接管主网管服务器提供服务，备网管服务器发送倒换成功通知至所述客户端以及业务前台的各业务网元。
在接收到倒换后的网管服务器发送的倒换成功通知时，客户端判定当前可正常获取信令跟踪服务，发送所述信令跟踪任务的跟踪恢复请求至倒换后的所述网管服务器，由倒换后的所述网管服务器将接收的跟踪恢复请求转发至所述业务前台。
第二发送模块120当其所在业务前台接收到倒换后的所述网管服务器发送的跟踪恢复请求时，判定能够获得数据上报服务，获取倒换期间缓存的所述跟踪恢复请求对应的信令跟踪任务的跟踪数据，并将获取的跟踪数据基于其所在业务前台发送至倒换后的所述网管服务器，由倒换后的所述网管服务器将接收的跟踪数据上报至所述客户端。此外，所述第二发送模块120将后续获取的所述信令跟踪任务的跟踪数据同样基于其所在业务前台通过倒换后的所述网管服务器上报至所述客户端。
所述客户端在接收到所述业务前台基于倒换后的所述网管服务器返回的所述信令跟踪任务在倒换期间的跟踪数据时，获取缓存的跟踪数据，并将缓存的跟踪数据与接收的跟踪数据进行合并。
进一步的，在本实施例中，在完成跟踪数据的合并后，所述客户端还可以显示合 并后的跟踪数据，供用户查看。
进一步的，基于第五实施例，提出本发明信令跟踪装置的第六实施例，在本实施例中，所述第二发送模块120还用于当其所在业务前台接收到客户端基于倒换后的网管服务器发送的所述信令跟踪任务的跟踪恢复请求时，提取所述跟踪恢复请求携带的识别信息，并获取缓存的与提取相同的识别信息所关联的信令跟踪任务在倒换期间的跟踪数据；以及将获取的所述跟踪数据基于倒换后的所述网管服务器发送至所述客户端。
需要说明的是，本实施例所述的识别信息用于唯一表征信令跟踪任务，所述识别信息包括在创建信令跟踪任务时分配的任务号，或者采用相关算法计算的特征值等。例如，本实施例采用预分配的任务号作为信令跟踪任务的识别信息，并将任务号作为对应的信令跟踪任务的跟踪恢复请求。所述第二发送模块120当其所在业务前台接收到所述客户端基于倒换后的所述网管服务器发送的跟踪恢复请求时，提取接收的跟踪恢复请求所携带的任务号，并获取与所述跟踪恢复请求携带相同的任务号所关联的信令跟踪任务在倒换期间的跟踪数据。在获取到与接收相同的任务号所关联的信令跟踪任务在倒换期间的跟踪数据时，所述第二发送模块120将获取的跟踪数据通过倒换后的所述网管服务器上报至所述客户端。
进一步的，基于第六实施例，提出本发明信令跟踪装置的第七实施例，在本实施例中，所述第二缓存模块110还用于当其所在业务前台接收到当前的网管服务器发送的倒换通知时，计算各所述信令跟踪任务的消息摘要算法第五版MD5值，并将计算的各MD5值作为识别信息与其对应的信令跟踪任务关联存储。
在本实施例中，考虑到MD5算法的压缩性、容易计算、抗修改性以及强抗碰撞等特点，所述第二缓存模块110计算信令跟踪任务的MD5值用以表征信令跟踪任务。具体的，当其所在业务前台接收到当前的网管服务器发送的倒换通知时，所述第二缓存模块110计算各所述信令跟踪任务的MD5值，并将计算的各MD5值与其对应的信令跟踪任务关联存储。需要说明的是，在其他实施例中，所述第二缓存模块110还可以采用其他算法计算信令跟踪任务的特征值，例如，采用SHA-1算法(SHA-1相较于MD5安全性较高，但消耗更多处理资源)。
相应的，所述客户端在缓存当前的信令跟踪任务的跟踪数据的同时，还计算当前信令跟踪任务的MD5值。其中，所述客户端计算各所述信令跟踪任务的MD5值，并将计算的各MD5值与其对应的信令跟踪任务关联存储。在接收到倒换后的网管服务器发送的倒换成功通知时，所述客户端提取MD5值作为其关联的信令跟踪任务的跟踪恢复请求，并基于倒换后的所述网管服务器将提取的MD5值发送至所述业务前 台。
在本实施例中，所述第二发送模块120还用于当其所在业务前台接收到客户端基于倒换后的网管服务器发送的所述信令跟踪任务的跟踪恢复请求时，提取所述跟踪恢复请求携带的MD5值，并获取缓存的与提取相同的MD5值所关联的信令跟踪任务在倒换期间的跟踪数据；以及将获取的所述跟踪数据基于倒换后的所述网管服务器发送至所述客户端。
本实施例中，所述第二发送模块120当其所在业务前台接收到所述客户端基于倒换后的所述网管服务器发送的跟踪恢复请求时，提取接收的跟踪恢复请求所携带的MD5值，并获取与所述跟踪恢复请求携带相同的MD5值所关联的信令跟踪任务在倒换期间的跟踪数据。在获取到与接收相同的MD5值所关联的信令跟踪任务在倒换期间的跟踪数据时，所述第二发送模块120将获取的跟踪数据通过倒换后的所述网管服务器上报至所述客户端，供所述客户端显示。
本实施例通过计算MD5值表征信令跟踪任务，并将MD5值作为其表征的信令跟踪任务的跟踪恢复请求，能够确保业务平台反馈正确的跟踪数据，此外，由于MD5值的长度固定为128位，还能够降低对网络资源的占用。
本申请上述实施例中提供信令跟踪装置可以通过硬件处理器结合软件程序的方式实现。
本发明的实施例还提供了一种信令跟踪装置，例如该信令跟踪装置可以应用于一客户端，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：
在接收到当前的网管服务器发送的倒换通知时，客户端缓存当前的信令跟踪任务的跟踪数据；
在接收到倒换后的网管服务器发送的倒换成功通知时，所述客户端基于倒换后的所述网管服务器发送所述信令跟踪任务的跟踪恢复请求至业务前台，以供所述业务前台根据接收的所述跟踪恢复请求返回其在倒换期间缓存的所述信令跟踪任务的跟踪数据；
在接收到所述业务前台基于倒换后的所述网管服务器返回的所述信令跟踪任务在倒换期间的跟踪数据时，所述客户端将接收的跟踪数据与缓存的跟踪数据合并。
本发明的实施例还提供了一种信令跟踪装置，例如该信令跟踪装置可以应用于一业务前台，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：
在接收到当前的网管服务器发送的倒换通知时，业务前台继续获取并缓存当前的信令跟踪任务的跟踪数据；
在接收到客户端基于倒换后的网管服务器发送的所述信令跟踪任务的跟踪恢复请求时，所述业务前台将倒换期间缓存的所述信令跟踪任务的跟踪数据基于倒换后的所述网管服务器发送至所述客户端。
本发明的实施例还提供了一种非易失性计算机可读存储介质，其中存储有指令，所述指令在由客户端执行时使客户端中的处理器实施一种信令跟踪方法，所述方法包括以下步骤：
在接收到当前的网管服务器发送的倒换通知时，客户端缓存当前的信令跟踪任务的跟踪数据；
在接收到倒换后的网管服务器发送的倒换成功通知时，所述客户端基于倒换后的所述网管服务器发送所述信令跟踪任务的跟踪恢复请求至业务前台，以供所述业务前台根据接收的所述跟踪恢复请求返回其在倒换期间缓存的所述信令跟踪任务的跟踪数据；
在接收到所述业务前台基于倒换后的所述网管服务器返回的所述信令跟踪任务在倒换期间的跟踪数据时，所述客户端将接收的跟踪数据与缓存的跟踪数据合并。
本发明的实施例还提供了一种非易失性计算机可读存储介质，其中存储有指令，所述指令在由业务前台执行时使业务前台中的处理器实施一种信令跟踪方法，所述方法包括以下步骤：
在接收到当前的网管服务器发送的倒换通知时，业务前台继续获取并缓存当前的信令跟踪任务的跟踪数据；
在接收到客户端基于倒换后的网管服务器发送的所述信令跟踪任务的跟踪恢复请求时，所述业务前台将倒换期间缓存的所述信令跟踪任务的跟踪数据基于倒换后的所述网管服务器发送至所述客户端。
工业实用性
本申请的信令跟踪方法可应用于通信领域中，主要可应用于客户端和业务前台的信令跟踪操作。在网管服务器进行倒换操作时，客户端以及业务前台维持倒换前的信令跟踪状态，并在倒换成功后，由客户端基于倒换后提供服务的网管服务器加载业务 前台在倒换期间的跟踪数据，并与倒换前缓存的信令跟踪任务的跟踪数据合并，使得无论网管服务器是否进行倒换，客户端都能够正常获得跟踪数据，从而达到提高信令跟踪稳定性的目的。
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (14)

  1. 一种信令跟踪方法，其中，所述信令跟踪方法包括：
    在接收到当前的网管服务器发送的倒换通知时，客户端缓存当前的信令跟踪任务的跟踪数据；
    在接收到倒换后的网管服务器发送的倒换成功通知时，所述客户端基于倒换后的所述网管服务器发送所述信令跟踪任务的跟踪恢复请求至业务前台，以供所述业务前台根据接收的所述跟踪恢复请求返回其在倒换期间缓存的所述信令跟踪任务的跟踪数据；
    在接收到所述业务前台基于倒换后的所述网管服务器返回的所述信令跟踪任务在倒换期间的跟踪数据时，所述客户端将接收的跟踪数据与缓存的跟踪数据合并。
  2. 如权利要求1所述的信令跟踪方法，其中，所述客户端基于倒换后的所述网管服务器发送所述信令跟踪任务的跟踪恢复请求至业务前台的步骤包括：
    所述客户端依次提取各所述信令跟踪任务的识别信息；
    在每次提取到识别信息时，所述客户端将提取的识别信息作为其对应的信令跟踪任务的跟踪恢复请求，并基于倒换后的所述网管服务器将提取的识别信息发送至所述业务前台；
    在接收到倒换后的所述网管服务器返回的发送成功信息时，所述客户端继续按顺序提取其他识别信息。
  3. 如权利要求2所述的信令跟踪方法，其中，所述客户端缓存当前的信令跟踪任务的跟踪数据的同时，还执行以下步骤：
    所述客户端计算各所述信令跟踪任务的消息摘要算法第五版MD5值，并将计算的各MD5值作为识别信息与其对应的信令跟踪任务关联存储。
  4. 如权利要求1-3任一项所述的信令跟踪方法，其中，所述信令跟踪方法还包括：
    所述客户端屏蔽倒换期间的跟踪任务退出指令。
  5. 一种信令跟踪方法，其中，所述信令跟踪方法包括：
    在接收到当前的网管服务器发送的倒换通知时，业务前台继续获取并缓存当前的信令跟踪任务的跟踪数据；
    在接收到客户端基于倒换后的网管服务器发送的所述信令跟踪任务的跟踪恢复请求时，所述业务前台将倒换期间缓存的所述信令跟踪任务的跟踪数据基于倒换后的所述网管服务器发送至所述客户端。
  6. 如权利要求5所述的信令跟踪方法，其中，所述业务前台将倒换期间缓存的所述信令跟踪任务的跟踪数据基于倒换后的所述网管服务器发送至所述客户端的步骤包括：
    在接收到客户端基于倒换后的网管服务器发送的所述信令跟踪任务的跟踪恢复请求时，所述业务前台提取所述跟踪恢复请求携带的识别信息，并获取缓存的与提取的相同识别信息所关联的信令跟踪任务在倒换期间的跟踪数据；
    所述业务前台将获取的所述跟踪数据基于倒换后的所述网管服务器发送至所述客户 端。
  7. 如权利要求6所述的信令跟踪方法，其中，在接收到当前的网管服务器发送的倒换通知时，还执行以下步骤：
    所述业务前台计算各所述信令跟踪任务的消息摘要算法第五版MD5值，并将计算的各MD5值作为识别信息与其对应的信令跟踪任务关联存储。
  8. 一种信令跟踪装置，其中，所述信令跟踪装置包括：
    第一缓存模块，设置为当其所在客户端接收到当前的网管服务器发送的倒换通知时，缓存当前的信令跟踪任务的跟踪数据；
    第一发送模块，设置为当其所在客户端接收到倒换后的网管服务器发送的倒换成功通知时，基于倒换后的所述网管服务器发送所述信令跟踪任务的跟踪恢复请求至业务前台，以供所述业务前台根据接收的所述跟踪恢复请求返回其在倒换期间缓存的所述信令跟踪任务的跟踪数据；
    合并模块，设置为当其所在客户端接收到所述业务前台基于倒换后的所述网管服务器返回的所述信令跟踪任务在倒换期间的跟踪数据时，将接收的跟踪数据与缓存的跟踪数据合并。
  9. 如权利要求8所述的信令跟踪装置，其中，所述第一发送模块还设置为依次提取各所述信令跟踪任务的识别信息；以及在每次提取到识别信息时，将提取的识别信息作为其对应的信令跟踪任务的跟踪恢复请求，并基于倒换后的所述网管服务器将提取的识别信息发送至所述业务前台；以及在接收到倒换后的所述网管服务器返回的发送成功信息时，继续按顺序提取其他识别信息。
  10. 如权利要求8所述的信令跟踪装置，其中，所述第一缓存模块还设置为计算各所述信令跟踪任务的消息摘要算法第五版MD5值，并将计算的各MD5值作为识别信息与其对应的信令跟踪任务关联存储。
  11. 如权利要求8-10任一项所述的信令跟踪装置，其中，所述信令跟踪装置还包括：
    屏蔽模块，设置为屏蔽倒换期间的跟踪任务退出指令。
  12. 一种信令跟踪装置，其中，所述信令跟踪装置包括：
    第二缓存模块，设置为当其所在业务前台接收到当前的网管服务器发送的倒换通知时，继续获取并缓存当前的信令跟踪任务的跟踪数据；
    第二发送模块，设置为当其所在业务前台接收到客户端基于倒换后的网管服务器发送的所述信令跟踪任务的跟踪恢复请求时，将倒换期间缓存的所述信令跟踪任务的跟踪数据基于倒换后的所述网管服务器发送至所述客户端。
  13. 如权利要求12所述的信令跟踪装置，其中，所述第二发送模块还设置为当其所在业务前台接收到客户端基于倒换后的网管服务器发送的所述信令跟踪任务的跟踪恢复请求时，提取所述跟踪恢复请求携带的识别信息，并获取缓存的与提取相同的识别信息所关联的信令跟踪任务在倒换期间的跟踪数据；以及将获取的所述跟踪数据基于倒换后的所 述网管服务器发送至所述客户端。
  14. 如权利要求13所述的信令跟踪装置，其中，所述第二缓存模块还设置为当其所在业务前台接收到当前的网管服务器发送的倒换通知时，计算各所述信令跟踪任务的消息摘要算法第五版MD5值，并将计算的各MD5值作为识别信息与其对应的信令跟踪任务关联存储。
    。
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Citations (3)

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CN1964473A (zh) * 2005-11-09 2007-05-16 中兴通讯股份有限公司 一种实现ip网络会议电视系统mc主备倒换的方法
CN101170437A (zh) * 2007-11-21 2008-04-30 中兴通讯股份有限公司 一种信令跟踪客户端显示信令消息的方法
CN101207409A (zh) * 2006-12-21 2008-06-25 华为技术有限公司 一种业务倒换的方法及一种单板

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1964473A (zh) * 2005-11-09 2007-05-16 中兴通讯股份有限公司 一种实现ip网络会议电视系统mc主备倒换的方法
CN101207409A (zh) * 2006-12-21 2008-06-25 华为技术有限公司 一种业务倒换的方法及一种单板
CN101170437A (zh) * 2007-11-21 2008-04-30 中兴通讯股份有限公司 一种信令跟踪客户端显示信令消息的方法

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