WO2021098477A1 - Procédé, appareil et système de traitement de dégradation de signal - Google Patents

Procédé, appareil et système de traitement de dégradation de signal Download PDF

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Publication number
WO2021098477A1
WO2021098477A1 PCT/CN2020/124984 CN2020124984W WO2021098477A1 WO 2021098477 A1 WO2021098477 A1 WO 2021098477A1 CN 2020124984 W CN2020124984 W CN 2020124984W WO 2021098477 A1 WO2021098477 A1 WO 2021098477A1
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Prior art keywords
signal degradation
degradation state
changed
state
protocol
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PCT/CN2020/124984
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English (en)
Chinese (zh)
Inventor
王光全
耿春敬
袁佳欣
王海军
庞冉
王泽林
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中兴通讯股份有限公司
中国联合网络通信集团有限公司
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Publication of WO2021098477A1 publication Critical patent/WO2021098477A1/fr

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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
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • 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
    • 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
    • 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
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0823—Errors, e.g. transmission errors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/22—Parsing or analysis of headers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks

Definitions

  • the embodiments of the present invention relate to the field of communications, and in particular to a method, device, and system for processing signal degradation.
  • SD protection means signal degradation. SD protection means that the protection action is triggered after signal degradation.
  • embodiments of the present invention provide a signal degradation processing method, including the following steps: determine whether the signal degradation state has changed according to the detected signal degradation state of the link If it is determined that the signal degradation state has changed, a first message carrying the changed signal degradation state is sent to the peer device in real time based on the preset first protocol; wherein, the first protocol is the LLDP protocol.
  • the embodiment of the present invention also provides a signal degradation processing method, including: receiving a first message sent by a peer device, and obtaining a signal degradation status of a link according to the first message; wherein, the first message
  • the text is a message carrying the changed signal degradation state sent in real time based on the preset first protocol when the peer device determines that the signal degradation state has changed; wherein, the first protocol is the LLDP protocol Determine whether the signal degradation state has changed according to the signal degradation state; if it is determined that the signal degradation state has changed, use the changed signal degradation state as the signal degradation state of the link.
  • the embodiment of the present invention also provides a signal degradation processing device, including: an interface management module configured to determine whether the signal degradation state has changed according to the detected signal degradation state of the link; a message generation module, configured In order that the interface management module determines that the signal degradation state has changed, based on the preset first protocol, the first message carrying the changed signal degradation state is sent to the opposite device in real time; wherein, the The first protocol is the LLDP protocol.
  • the embodiment of the present invention also provides a signal degradation processing device, including: a message analysis module configured to receive a first message sent by a peer device, and obtain the signal degradation status of the link according to the first message; wherein The first message is a message carrying the changed signal degradation state that is sent in real time based on the preset first protocol when the peer device determines that the signal degradation state has changed; wherein, the The first protocol is the LLDP protocol; the interface management module is configured to determine whether the signal degradation state has changed according to the signal degradation state; if it is determined that the signal degradation state has changed, use the changed signal degradation state as The signal degradation state of the link.
  • the embodiment of the present invention also provides a system including: at least one processor; and a memory communicatively connected with the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, The instructions are executed by the at least one processor, so that the at least one processor can execute the above-mentioned signal processing method.
  • Fig. 1 is a flowchart of a signal degradation processing method according to a first embodiment of the present invention
  • Fig. 2 is a structural diagram of a TLV data format according to the first embodiment of the present invention.
  • Fig. 3 is a flowchart of a signal degradation processing method according to a second embodiment of the present invention.
  • Fig. 5 is a flowchart of a signal degradation processing method according to a third embodiment of the present invention.
  • Fig. 6 is a flowchart of a signal degradation processing method in a fourth embodiment of the present invention.
  • Fig. 7 is a flowchart of a signal degradation processing method in a fifth embodiment of the present invention.
  • FIG. 8 is a structural diagram of a signal degradation processing device in a sixth embodiment of the present invention.
  • FIG. 9 is a structural diagram of a signal degradation processing device in a seventh embodiment according to the present invention.
  • Fig. 10 is a structural diagram of a system in an eighth embodiment according to the present invention.
  • the first embodiment of the present invention relates to a signal degradation processing method.
  • it is determined whether the signal degradation state has changed according to the detected signal degradation state of the link; if it is determined that the signal degradation state has changed, the first protocol based on the preset first protocol will carry the changed signal degradation state.
  • a message is sent to the peer device in real time; among them, the first protocol is the LLDP protocol.
  • the embodiments of the present invention can be applied to the receiving device in the link, that is, the receiving device in the link executes the signal degradation processing method. It should be noted that in other embodiments, the signal degradation processing method provided by the embodiments of the present invention may also be applied to the sending device in the link, that is, the sending device in the link executes the signal degradation processing method.
  • FIG. 1 The flowchart of the signal degradation processing method in this embodiment is shown in FIG. 1, and includes:
  • Step 101 Determine whether the signal degradation state has changed according to the detected signal degradation state of the link. If there is a change, go to step 102.
  • the interface management module of the receiving device determines whether the signal degradation state has changed according to the detected signal degradation state of the link.
  • the signal degradation state of the link is detected based on the preset second protocol, and the second protocol is different from the first protocol.
  • Degradation detection refers to the presence or absence of signal degradation on the link through different detection methods; degradation processing refers to a series of further operations that are performed after signal degradation is detected, including degradation notification and link reselection.
  • the second protocol can be Y.1731 protocol, CFMM protocol, and so on.
  • the signal degradation status can be obtained by the method of protocol packet statistical packet loss rate.
  • the packet loss rate can be calculated by the frame loss measurement packet, and the packet loss rate can be compared with the set threshold. Get the signal degradation state.
  • the signal degradation state can also be obtained by the Frame Check Sequence (FCS).
  • FCS is commonly known as the frame tail, which is the tail field of the protocol data unit (frame) of the computer network data link layer. It is a 4-byte cyclic redundancy check code.
  • FCS Frame Check Sequence
  • the detection principle is as follows: When the source node sends a data frame, the FCS is calculated from the frame header and data part of the frame. After the destination node receives it, it calculates the FCS again in the same way. If it is different from the received FCS, it is considered An error occurs in the frame during transmission, so the frame is selected to be discarded, and the signal degradation state is obtained by comparing the frame loss rate with the set threshold.
  • the signal degradation state can also be obtained by means of Cyclic Redundancy Check (CRC).
  • CRC Cyclic Redundancy Check
  • the fast algorithm is mainly used to detect or check the errors that may occur after data transmission or storage.
  • the signal degradation state of the link can be detected by the interface management module of the receiving device through the above method; it can also be detected by the detection module of the receiving device for detecting data through the above method, and the detected link The signal degradation status of the road is sent to the interface management module.
  • Step 102 Based on the preset first protocol, the first message carrying the changed signal degradation state is sent to the opposite end device in real time.
  • the first protocol is the LLDP protocol.
  • the LLDP protocol is a basic Layer 2 link layer protocol. It is supported by many manufacturers' Layer 2 and Layer 3 switching and routing equipment. The protocol has high stability and a wide range of applications.
  • the message generating module of the receiving device generates the first message carrying the changed signal degradation state based on the preset LLDP protocol, and sends the first message to the opposite device in real time; the opposite device of the receiving device is the receiving device The sending device corresponding to the device.
  • the data format of the first message is a TLV (Type/Length/Value, type/length/value) format.
  • TLV Type/Length/Value, type/length/value
  • the structure diagram of the TLV data format in this embodiment is shown in Figure 2, where the TLV header is the general format of the TLV defined by the LLDP organization, and the TLV information string is 5 bytes. Where OUI is 00-1E-73 occupies 3 bytes, subtype is 1 occupies 1 byte, status represents the signal degradation state of the link (2 is the signal state, 0 is no signal degradation) occupies 1 byte . For example: if the changed signal degradation status is that there is signal degradation, the status is 2. It is worth noting that TLV can also adopt other formats as long as it meets the basic requirements of the LLDP protocol.
  • the direction of signal degradation perception is only the port receiving direction, and the sender cannot perceive the signal degradation in its own sending direction.
  • the signal degradation status notification needs to be sent periodically to notify, and the message cannot be sent immediately for notification.
  • the standby link switching or route convergence is not timely enough, which affects the user's service quality, and in severe cases may cause long-term data interruption and other faults.
  • the received signal degradation state of the link it is determined whether the signal degradation state of the link has changed. If the signal degradation state changes, the changed signal degradation state will be carried based on the preset first protocol.
  • the first message is sent to the peer device in real time without periodic waiting, which shortens the time for the peer device to perceive the signal degradation status in the sending direction.
  • the second embodiment of the present invention relates to a signal degradation processing method.
  • This embodiment is roughly the same as the first embodiment. The difference is that in this embodiment, the signal degradation state of the link detected this time is compared with the signal degradation state of the link detected last time, and the signal is determined Whether the deterioration status has changed.
  • FIG. 3 The flowchart of the signal degradation processing method in this embodiment is shown in FIG. 3, and includes:
  • Step 203 is similar to step 102 and will not be repeated here.
  • Step 201 Compare the signal degradation state of the link detected this time with the signal degradation state detected last time.
  • the signal degradation state detected last time is stored in the interface management module of the receiving device, and the interface management module of the receiving device compares the signal degradation state of the link detected this time with the signal degradation state detected last time.
  • the signal degradation state is the presence or absence of signal degradation.
  • Step 202 Determine whether the signal degradation state has changed. If the signal degradation state changes, then go to step 203.
  • the interface management module of the receiving device stores the signal degradation state detected last time. If the signal degradation state of the link detected this time is different from the signal degradation data detected last time, it is determined that the signal degradation state has changed. And update the signal degradation state detected last time to the changed signal degradation state. If the signal degradation state of the link detected this time is the same as the signal degradation state detected last time, it is determined that the signal degradation state has not changed, and the signal degradation state remains unchanged.
  • Step 2001 and step 2002 are similar to step 201 and step 202 respectively, and will not be repeated here.
  • the last detected signal degradation state is updated to the changed signal degradation state.
  • the signal degradation status detected last time is no signal degradation, if the signal degradation status of the link detected this time is signal degradation, the signal degradation status changes, and the signal degradation status detected last time is updated to change After the signal degradation state; if the signal degradation state of the link detected this time is that there is no signal degradation, the signal degradation state has not changed, and the signal degradation state is still that there is no signal degradation.
  • the signal degradation state of the link detected this time is compared with the signal degradation state detected last time to determine whether the signal degradation state of the link has changed. If the signal degradation state changes, it is based on the preset
  • the first protocol sends the first message carrying the changed signal degradation state to the peer device in real time, without periodic waiting, and shortens the time for the peer device to perceive the signal degradation state in its own sending direction.
  • the third embodiment of the present invention relates to a signal degradation processing method.
  • This embodiment is roughly the same as the second embodiment. The difference is that: in this embodiment, if it is determined that the signal degradation state has not changed, the second message carrying the signal degradation state is based on the preset first protocol. The preset period is sent to the peer device.
  • the flowchart of the signal degradation processing method in this embodiment is shown in FIG. 5, and includes:
  • Step 301, step 302, and step 303 are similar to step 201, step 202, and step 203, respectively, and will not be repeated here.
  • Step 304 Based on the preset first protocol, the second message carrying the signal degradation state is sent to the peer device according to the preset cycle.
  • the message generation module of the receiving device when the signal degradation state has not changed, the message generation module of the receiving device generates a second message carrying the signal degradation state based on the preset LLDP protocol, and sends the second message to the pair according to the preset cycle.
  • the end device does not need to be sent to the peer device in real time, reducing the occupation of link broadband resources.
  • the data format of the second message is also a TLV (Type/Length/Value, type/length/value) format.
  • the receiving device and the opposite device handle the signal degradation state in the same manner.
  • the preset period can be set according to needs, and this embodiment does not specifically limit it.
  • the message generation module of the device when the signal degradation state does not change, the message generation module of the device does not generate message information, and no message is sent to the peer device.
  • the receiving device and the opposite device handle the signal degradation state in the same manner.
  • This embodiment determines whether the signal degradation state of the link has changed according to the received signal degradation state of the link. If the signal degradation state changes, the message generation module of the receiving device will carry the change based on the preset first protocol. The first message of the subsequent signal degradation state is sent to the peer device in real time without periodic waiting, which shortens the time for the peer device to perceive the signal degradation state in its own transmission direction; when the signal degradation state has not changed, the message of the device is received Based on the preset LLDP protocol, the generating module sends the second message carrying the signal degradation state to the peer device in a preset period, and does not need to be sent to the peer device in real time, thereby reducing the occupation of link broadband resources.
  • the fourth embodiment of the present invention relates to a signal degradation processing method.
  • the first message sent by the peer device is received, and the signal degradation state of the link is obtained according to the first message; wherein, the first message is based on when the peer device determines that the signal degradation state has changed.
  • the preset first protocol sends a message carrying the changed signal degradation state in real time; judges whether the signal degradation state has changed according to the signal degradation state; if it is judged that the signal degradation state has changed, the changed signal degradation state is used as a chain The signal degradation state of the road.
  • the embodiments of the present invention can be applied to the sending device in the link, that is, the sending device in the link executes the signal degradation processing method. It should be noted that in other embodiments, the signal degradation processing method provided by the embodiments of the present invention may also be applied to the receiving device in the link, that is, the receiving device in the link executes the signal degradation processing method.
  • FIG. 6 The flowchart of the signal degradation processing method in this embodiment is shown in FIG. 6, and includes:
  • Step 401 Receive a first message sent by a peer device, and obtain a signal degradation state of the link according to the first message.
  • the first protocol is the LLDP protocol
  • the message parsing module of the sending device receives the first message carrying the signal degradation state generated based on the preset LLDP protocol sent by the peer device, and parses the first message to obtain the signal Degraded state
  • the peer device of the sending device is the receiving device corresponding to the sending device.
  • the value of status in the TLV data format of the first message is analyzed to obtain the signal degradation status. For example, if the status is 2, the signal degradation state is signal degradation; if the status is 0, the signal degradation state is non-existent. Signal degradation.
  • Step 402 Determine whether the signal degradation state has changed. If the signal degradation state changes, step 403 is entered.
  • the message analysis module of the receiving device sends the analyzed signal degradation status to the interface management module of the receiving device, and the interface management module of the receiving device stores the signal degradation status received last time.
  • the signal degradation state of the channel is different from the signal degradation state received last time, it is determined that the signal degradation state has changed, and the signal degradation state received last time is updated to the changed signal degradation state. If the signal degradation state of the link received this time is the same as the signal degradation state received last time, it is determined that the signal degradation state has not changed and the signal degradation state remains unchanged.
  • Step 403 Use the changed signal degradation state as the signal degradation state of the link.
  • the interface management module of the receiving device uses the changed signal degradation state as the signal degradation state of the link. For example: if the signal degradation state of the link is that there is no signal degradation, and the changed signal degradation state is that there is signal degradation, then the presence of signal degradation is regarded as the signal degradation state of the link.
  • the interface management module of the receiving device is also used to change the alarm state of the link, and the alarm state is either alarm or non-alarm.
  • the interface management module can notify the signal degradation status of the link by generating data containing the alarm status. By changing the alarm state, the change of the signal degradation state of the link can be notified in an alarm manner.
  • the alarm status when the alarm status is non-alarming, it also includes: if the time to acquire the second message sent by the peer device exceeds the preset period, changing the alarm status of the link; wherein, the second message
  • the peer device determines that the signal degradation state has not changed, it generates a message carrying the signal degradation state based on the preset first protocol and sends it according to the preset period.
  • the alarm state is changed, so that when the second message cannot be acquired when the signal is degraded during transmission, the alarm state of the link can also be changed in a timely manner.
  • the peer device when the peer device determines that the signal degradation state has changed, it sends the first packet carrying the changed signal degradation state in real time based on the preset first protocol, so the interface management module of the receiving device can Obtain the link status in time.
  • the fifth embodiment of the present invention relates to a signal degradation processing method.
  • This embodiment is substantially the same as the fourth embodiment. The difference is that: in this embodiment, if it is determined that the signal degradation state has changed, the changed signal degradation state is used as the signal degradation state of the link, and it also includes : Send the signal degradation state of the link to the preset service management module; wherein, the preset service management module is a module for monitoring the signal degradation status.
  • FIG. 7 The flowchart of the signal degradation processing method in this embodiment is shown in FIG. 7, and includes:
  • Step 501, step 502, and step 503 are similar to step 401, step 402, and step 403, respectively, and will not be repeated here.
  • Step 504 Send the signal degradation state of the link to a preset service management module.
  • the preset service management module is a module that monitors the signal degradation state, and the preset service management module is set as required, and this embodiment does not specifically limit it.
  • the interface management module of the receiving device sends the signal degradation status of the link to the service management module for the service management module to obtain the signal degradation status of the link, so that the service management module that monitors the signal degradation status of the link can change when the signal degradation occurs At this time, the signal degradation status of the current interface can be obtained in time so that subsequent actions such as correct link selection can be made.
  • Service management modules include, but are not limited to, the following types: aggregation port routing module, active/standby link switching module, and routing module.
  • the peer device when the peer device determines that the signal degradation state has changed, it sends the first message carrying the changed signal degradation state in real time based on the preset first protocol, so the receiving management module can obtain the chain in time.
  • the signal degradation state of the link, and the service management module that monitors the signal degradation state of the link can also obtain the signal degradation state of the link in time, and make correct link selection and other actions.
  • the sixth embodiment of the present invention relates to a signal degradation processing device, which is a receiving device. As shown in Figure 8, it includes:
  • the interface management module 601 is configured to determine whether the signal degradation state has changed according to the detected signal degradation state of the link;
  • the message generation module 602 is configured to send the first message carrying the changed signal degradation state to the peer device in real time based on the preset first protocol when the judgment result of the interface management module is that the signal degradation state has changed; where ,
  • the first protocol is the LLDP protocol.
  • the interface management module 601 is specifically configured to detect a signal degradation state based on a preset second protocol; wherein, the second protocol is different from the first protocol.
  • the interface management module 601 is specifically used to compare the signal degradation state of the link detected this time with the signal degradation state detected last time to determine whether the signal degradation state has changed; After the signal degradation state changes, the last detected signal degradation state is updated to the changed signal degradation state.
  • the message generation module 602 is configured to, if it is determined that the signal degradation state has not changed, send a second message carrying the signal degradation state to the opposite device at a preset cycle based on the preset first protocol .
  • the seventh embodiment of the present invention relates to a signal degradation processing device, which is a transmitting device. As shown in Figure 9, it includes:
  • the message parsing module 701 is configured to receive the first message sent by the peer device, and obtain the signal degradation status of the link according to the first message; wherein, the first message is when the peer device determines that the signal degradation status has changed At the time, the message carrying the changed signal degradation state sent in real time based on the preset first protocol, where the first protocol is the LLDP protocol.
  • the interface management module 702 is configured to determine whether the signal degradation state has changed according to the signal degradation state; if it is determined that the signal degradation state has changed, use the changed signal degradation state as the signal degradation state of the link.
  • the interface management module 702 is configured to change the alarm state of the link if it determines that the signal degradation state has changed; where the alarm state is alarm or non-alarm.
  • the interface management module 702 is configured to change the alarm state of the link when the time for acquiring the second message sent by the peer device exceeds the preset period when the alarm state is non-alarm;
  • the second message is a message carrying the signal degradation state that is sent according to the preset period based on the preset first protocol when the peer device determines that the signal degradation state has not changed.
  • the interface management module 702 is configured to, after determining that the signal degradation state has changed, use the changed signal degradation state as the signal degradation state of the link, and send the signal degradation state of the link to the preset signal degradation state.
  • Service management module; among them, the preset service management module is a module that monitors the signal degradation state.
  • the eighth embodiment of the present invention relates to a system, as shown in FIG. 10, including at least one processor 802; and, a memory 801 communicatively connected with at least one processor; wherein, the memory 801 stores data that can be used by at least one processor 802.
  • the executed instructions are executed by the at least one processor 802, so that the at least one processor 802 can execute the foregoing implementation of the signal degradation processing method.
  • the memory 801 and the processor 802 are connected in a bus manner, and the bus may include any number of interconnected buses and bridges, and the bus connects one or more various circuits of the processor 802 and the memory 801 together.
  • the bus can also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits, etc., which are all known in the art, and therefore, no further description will be given herein.
  • the bus interface provides an interface between the bus and the transceiver.
  • the transceiver may be one element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices on the transmission medium.
  • the data processed by the processor is transmitted on the wireless medium through the antenna, and further, the antenna also receives the data and transmits the data to the processor.
  • the processor is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions.
  • the memory can be used to store data used by the processor when performing operations.
  • the program is stored in a storage medium and includes several instructions to enable a device ( It may be a single-chip microcomputer, a chip, etc.) or a processor (processor) that executes all or part of the steps of the method described in each embodiment of the present invention.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks or optical disks and other media that can store program codes. .

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Abstract

L'invention concerne un procédé, un appareil et un système de traitement de dégradation de signal. Le procédé selon la présente invention comprend les étapes consistant à : selon un état de dégradation de signal détecté d'une liaison, déterminer si l'état de dégradation de signal change (101) ; et s'il est déterminé que l'état de dégradation de signal change, envoyer un premier message transportant l'état changé de dégradation de signal à un dispositif homologue en temps réel sur la base d'un premier protocole prédéfini (102), le premier protocole étant un protocole LLDP.
PCT/CN2020/124984 2019-11-20 2020-10-29 Procédé, appareil et système de traitement de dégradation de signal WO2021098477A1 (fr)

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