CN106817267B

CN106817267B - Fault detection method and equipment

Info

Publication number: CN106817267B
Application number: CN201510851553.2A
Authority: CN
Inventors: 张驰; 张晋
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-11-27
Filing date: 2015-11-27
Publication date: 2020-05-19
Anticipated expiration: 2035-11-27
Also published as: CN106817267A

Abstract

The embodiment of the invention relates to the technical field of communication, in particular to a fault detection method and equipment, which are used for reducing network load and network overhead. In the embodiment of the invention, service connection is determined not to be established between all user equipment corresponding to first equipment and second equipment, the frequency of sending a fault detection message by the first equipment is determined, and when the frequency of sending the fault detection message by the first equipment is determined not to be smaller than a first threshold value, the frequency of sending the fault detection message by the first equipment is adjusted, so that the adjusted frequency of sending the fault detection message by the first equipment is smaller than the first threshold value; and/or the frequency of the fault detection message sent by the second equipment is determined; and when the frequency of the fault detection message sent by the second equipment is not smaller than a second threshold value, adjusting the frequency of the fault detection message sent by the second equipment so as to enable the adjusted frequency of the fault detection message sent by the second equipment to be smaller than the second threshold value.

Description

Fault detection method and equipment

Technical Field

The embodiment of the invention relates to the field of communication, in particular to a fault detection method and equipment.

Background

In the communication field, in order to ensure the data transmission quality between network devices, it is necessary to quickly detect the communication failure between the network devices, so as to establish a new communication link in time when a failure occurs, or to switch to another communication link. At present, a Bidirectional Forwarding Detection (BFD) method is a most widely used network fault Detection technique. The BFD is characterized in that: light load, short duration, and the ability to quickly implement any type of communication link, such as direct physical links, virtual circuits, multi-hop routing channels, etc.

After the BFD session is established, the BFD session parties periodically send BFD messages to the opposite terminal on a session channel; meanwhile, on the session channel, the BFD message sent by the opposite terminal is periodically detected. And if the BFD message sent by the opposite terminal is not received within the detection time, determining that a communication link between the two parties of the BFD session has a fault.

Fig. 1 shows an architecture diagram of a typical data center networking in the prior art. As shown in fig. 1, a data center networking includes a plurality of Virtual Machines (VMs) for forwarding data, the plurality of VMs are connected to a two-layer device, the plurality of two-layer devices are connected to a plurality of three-layer devices, the two-layer device may be a router, the three-layer device may be a switch, that is, the plurality of VMs are connected to one router through the switch, and the plurality of routers may also be connected to the plurality of VMs through the switch. In the prior art, in order to ensure reliability of data transmission, a detection message for detecting whether a link fails needs to be sent between devices, for example, a BFD message is sent between a virtual machine and a router, and after detecting that a link or a device fails, the link or the device may be triggered to be replaced through the detection message, so that reliability of data transmission is ensured, and interruption time of data transmission is reduced.

In the prior art, BFD messages are usually sent between devices periodically, where the period is millisecond, for example, 10ms, and at this time, one virtual machine needs to send 100 BFD messages within 1 second. Further, since a plurality of VMs are connected to a router through a switch, the BFD that the router needs to process within 1 second reaches 10kpps level, which is far beyond the capability of the ordinary router, and the ordinary router can only reach 1kpps level when processing data through the CPU. It can be seen that the network load is increased and the network overhead is increased when the equipment periodically sends the BFD messages.

Disclosure of Invention

The embodiment of the invention provides a fault detection method and equipment, which are used for reducing network load and network overhead.

The embodiment of the invention provides a fault detection method, which comprises the following steps:

determining that service connection is not established between all user equipment corresponding to the first equipment and the second equipment; the service data of the user equipment corresponding to the second equipment is transmitted through the second equipment and the first equipment;

when the frequency of sending the fault detection message by the first equipment is determined to be not less than a first threshold value, adjusting the frequency of sending the fault detection message by the first equipment so as to enable the adjusted frequency of sending the fault detection message by the first equipment to be less than the first threshold value; and/or

And when the frequency of the fault detection message sent by the second equipment is not smaller than a second threshold value, adjusting the frequency of the fault detection message sent by the second equipment so as to enable the adjusted frequency of the fault detection message sent by the second equipment to be smaller than the second threshold value.

When determining that service connection is not established between the first device and all user devices corresponding to the second device, the user device corresponding to the second device does not send service data to the first device, so that at this time, it is not necessary to send a fault detection message at a high frequency, at this time, when determining that the frequency of sending the fault detection message by the first device is not less than a first threshold, the frequency of sending the fault detection message by the first device is adjusted so that the adjusted frequency of sending the fault detection message by the first device is less than the first threshold, and/or when determining that the frequency of sending the fault detection message by the second device is not less than a second threshold, the frequency of sending the fault detection message by the second device is adjusted so that the adjusted frequency of sending the fault detection message by the second device is less than the second threshold, that is, the sending frequency of the fault detection message is reduced, thereby reducing network load, network overhead is reduced, and network resources are saved.

There are various connection methods between the user equipment corresponding to the second device and the first device and the second device, for example, the user equipment is connected to the second device through other devices, the second device is connected to the first device through other devices, or the user equipment is directly connected to the second device, and the second device is directly connected to the first device. No matter how the user equipment corresponding to the second device is connected with the first device and the second device, the service data of the user equipment needs to be transmitted through the first device and the second device.

The establishment of the service connection between the user equipment and the first equipment specifically means that the user equipment transmits a request for establishing service connection with another user equipment through the second equipment and the first equipment, after the service connection is successfully established, the service connection is successfully established between the user equipment and the second equipment, between the user equipment and the first equipment, and between the user equipment and another user equipment, and communication can be performed through the successfully established service connection link, that is, service data is transmitted.

In the embodiment of the present invention, there are various ways to determine the frequency of the fault detection packet sent by the first device, for example, by obtaining a parameter of a timer used for determining the frequency of the fault detection packet sent by the first device, and changing a time parameter of the timer, so as to achieve the purpose of adjusting the frequency of the fault detection packet sent by the first device.

Optionally, the method further comprises:

when it is determined that a service connection is established between at least one user equipment corresponding to the second equipment and the first equipment, determining the quantity of service data sent by the second equipment and received by the first equipment within a preset time length;

when the number of the service data is determined to be zero, determining the frequency of sending the fault detection message by the first equipment, and when the frequency of sending the fault detection message by the first equipment is determined to be smaller than a first threshold value, adjusting the frequency of sending the fault detection message by the first equipment so that the adjusted frequency of sending the fault detection message by the first equipment is not smaller than the first threshold value; and/or

And when the number of the service data is determined to be zero, determining the frequency of the second equipment for sending the fault detection message, and when the frequency of the second equipment for sending the fault detection message is determined to be smaller than a second threshold value, adjusting the frequency of the second equipment for sending the fault detection message, so that the adjusted frequency of the second equipment for sending the fault detection message is not smaller than the second threshold value.

Since the service connection is established between the first device and at least one user device corresponding to the second device, the user device must perform service data transmission through the second device and the first device, if the number of the service data sent by the second device and received within the preset time is zero, it is indicated that the second device does not transmit the service data corresponding to the user device to the first device within the preset time, and at this time, it is determined that the second device may have a fault, and therefore, the frequency of the fault detection message can be increased. Therefore, when the equipment or the link fails, the failure detection rate is improved, and the interruption time of data transmission when the equipment or the link fails is further reduced.

Further, when the second device fails, the transmission of the service data on the second device is interrupted, and at this time, after the interruption of the service data transmitted on the second device is found on a certain interface, the sending frequency of the fault detection message is immediately increased, and the first device sends the fault detection message through the interface. Since a single device fails in most cases, the individual device increases the transmission frequency of the failure detection message, and does not place a large load on the network, and the failure detection speed is also increased.

Optionally, after determining, when determining that a service connection is established between at least one user equipment corresponding to the second device and the first device, the number of service data sent by the second device and received by the first device within a preset time period, the method further includes:

when the number of the service data is determined not to be zero and the first device sends a fault detection message to the second device, adjusting the frequency of sending the fault detection message by the first device so that the adjusted first device stops sending the fault detection message to the second device; and/or

And when the number of the service data is determined not to be zero and the second device sends a fault detection message to the first device, adjusting the frequency of sending the fault detection message by the second device so as to enable the adjusted second device to stop sending the fault detection message to the first device.

Since the service connection is established between the at least one user equipment corresponding to the second equipment and the first equipment, the user equipment can carry out service data transmission through the second equipment and the first equipment, if the quantity of the service data sent by the second equipment and received within the preset time length is not zero, the link and the equipment between the first equipment and the second equipment are normal, and at the moment, the sending of the fault detection message can be stopped, so that the network load is reduced, the network overhead is reduced, and the network resources are saved.

when the number of the service data is determined not to be zero, determining the frequency of the first equipment for sending the fault detection message; when the frequency of sending the fault detection message by the first equipment is determined to be not less than a first threshold value, adjusting the frequency of sending the fault detection message by the first equipment so as to enable the adjusted frequency of sending the fault detection message by the first equipment to be less than the first threshold value; and/or

When the number of the service data is determined not to be zero, determining the frequency of the second equipment for sending the fault detection message; and when the frequency of the fault detection message sent by the second equipment is not smaller than a second threshold value, adjusting the frequency of the fault detection message sent by the second equipment so as to enable the adjusted frequency of the fault detection message sent by the second equipment to be smaller than the second threshold value.

Since the service connection is established between the at least one user equipment corresponding to the second equipment and the first equipment, the user equipment can carry out service data transmission through the second equipment and the first equipment certainly, if the quantity of the service data sent by the second equipment and received within the preset time length is not zero, the link and the equipment between the first equipment and the second equipment are normal, and at the moment, the frequency of sending the fault detection message can be reduced, so that the link and the equipment are continuously detected, the network load is reduced, the network overhead is reduced, and the network resources are saved.

Optionally, when it is determined that the frequency at which the first device sends the fault detection packet is not less than the first threshold, adjusting the frequency at which the first device sends the fault detection packet specifically includes:

when the frequency of sending the fault detection message by the first equipment is determined to be not less than a first threshold value, adjusting the frequency of sending the fault detection message by the first equipment according to the quantity of the service data; the smaller the quantity of the service data is, the larger the frequency of sending the fault detection message by the first equipment after the adjustment is;

when it is determined that the frequency of sending the fault detection message by the first device is not less than the first threshold, adjusting the frequency of sending the fault detection message by the second device specifically includes:

when the frequency of sending the fault detection message by the second equipment is determined to be not less than a second threshold value, adjusting the frequency of sending the fault detection message by the second equipment according to the quantity of the service data; the smaller the quantity of the service data is, the larger the frequency of sending the fault detection message by the second device after the adjustment is.

An embodiment of the present invention provides a fault detection device, including:

a determining unit, configured to determine that service connections are not established between all user equipment corresponding to the first device and the second device; the service data of the user equipment corresponding to the second equipment is transmitted through the second equipment and the first equipment;

the processing unit is used for adjusting the frequency of the fault detection message sent by the first equipment when the determining unit determines that the frequency of the fault detection message sent by the first equipment is not less than a first threshold value, so that the adjusted frequency of the fault detection message sent by the first equipment is less than the first threshold value; and/or

When the determining unit determines that the frequency of sending the fault detection message by the second device is not less than a second threshold, the frequency of sending the fault detection message by the second device is adjusted so that the adjusted frequency of sending the fault detection message by the second device is less than the second threshold.

Optionally, the determining unit is further configured to:

the processing unit is further configured to:

when the determining unit determines that the number of the service data is zero, determining the frequency of sending the fault detection message by the first device, and when the frequency of sending the fault detection message by the first device is determined to be smaller than a first threshold, adjusting the frequency of sending the fault detection message by the first device so that the adjusted frequency of sending the fault detection message by the first device is not smaller than the first threshold; and/or

When the determining unit determines that the number of the service data is zero, determining the frequency of sending the fault detection message by the second device, and when determining that the frequency of sending the fault detection message by the second device is smaller than a second threshold, adjusting the frequency of sending the fault detection message by the second device so that the adjusted frequency of sending the fault detection message by the second device is not smaller than the second threshold.

Optionally, the processing unit is further configured to:

when the determining unit determines that the amount of the service data is not zero and the first device sends a fault detection message to the second device, adjusting the frequency of sending the fault detection message by the first device so that the adjusted first device stops sending the fault detection message to the second device; and/or

When the determining unit determines that the amount of the service data is not zero and the second device sends a fault detection message to the first device, adjusting the frequency of sending the fault detection message by the second device, so that the adjusted second device stops sending the fault detection message to the first device.

Optionally, the processing unit is further configured to:

when the determining unit determines that the number of the service data is not zero, determining the frequency of the first device for sending the fault detection message; when the frequency of sending the fault detection message by the first equipment is determined to be not less than a first threshold value, adjusting the frequency of sending the fault detection message by the first equipment so as to enable the adjusted frequency of sending the fault detection message by the first equipment to be less than the first threshold value; and/or

When the determining unit determines that the number of the service data is not zero, determining the frequency of the second device for sending the fault detection message; and when the frequency of the fault detection message sent by the second equipment is not smaller than a second threshold value, adjusting the frequency of the fault detection message sent by the second equipment so as to enable the adjusted frequency of the fault detection message sent by the second equipment to be smaller than the second threshold value.

Optionally, the processing unit is specifically configured to:

the processor is used for determining that service connection is not established between all user equipment corresponding to the first equipment and the second equipment; the service data of the user equipment corresponding to the second equipment is transmitted through the second equipment and the first equipment;

When the frequency of sending the fault detection message by the second equipment is determined to be not less than a second threshold value, adjusting the frequency of sending the fault detection message by the second equipment so as to enable the adjusted frequency of sending the fault detection message by the second equipment to be less than the second threshold value;

a memory for storing the first threshold and the second threshold.

Optionally, the processor is further configured to:

Optionally, the processor is specifically configured to:

In the embodiment of the invention, service connection is not established between all user equipment corresponding to the first equipment and the second equipment; the service data of the user equipment corresponding to the second equipment is transmitted through the second equipment and the first equipment; determining the frequency of sending the fault detection message by the first equipment, and adjusting the frequency of sending the fault detection message by the first equipment when the frequency of sending the fault detection message by the first equipment is not less than a first threshold value, so that the adjusted frequency of sending the fault detection message by the first equipment is less than the first threshold value; and/or determining the frequency of the fault detection message sent by the second equipment; and when the frequency of the second equipment for sending the fault detection message is not less than the second threshold value, adjusting the frequency of the second equipment for sending the fault detection message so as to enable the adjusted frequency of the second equipment for sending the fault detection message to be less than the second threshold value. When determining that service connection is not established between the first device and all user devices corresponding to the second device, the user device corresponding to the second device does not send service data to the first device, so that at this time, it is not necessary to send a fault detection message at a high frequency, at this time, when determining that the frequency of sending the fault detection message by the first device is not less than a first threshold, the frequency of sending the fault detection message by the first device is adjusted so that the adjusted frequency of sending the fault detection message by the first device is less than the first threshold, and/or when determining that the frequency of sending the fault detection message by the second device is not less than a second threshold, the frequency of sending the fault detection message by the second device is adjusted so that the adjusted frequency of sending the fault detection message by the second device is less than the second threshold, that is, the sending frequency of the fault detection message is reduced, thereby reducing network load, network overhead is reduced, and network resources are saved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a block diagram illustrating a typical data center networking architecture in the prior art;

FIG. 2 is a system architecture diagram of the present invention according to an embodiment of the present invention;

fig. 3 is a schematic flow chart of a fault detection method according to an embodiment of the present invention;

fig. 3a is a schematic flow chart of another fault detection method according to an embodiment of the present invention;

fig. 3b is a schematic diagram illustrating a relationship between a transmission frequency of a fault detection packet and a number of service data according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a fault detection device according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of another fault detection device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following, for ease of understanding, the basic concepts related to the embodiments of the present invention are described.

The term "user Equipment" includes, but is not limited to, handheld devices, vehicle mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem with wireless communication capability, as well as various forms of User Equipment (UE), Mobile Stations (MS), user Equipment (Terminal Equipment), and the like. For convenience of description, in this application, it is simply referred to as user equipment.

The term "first device" or "second device" is a processing device with wireless communication capabilities for transmitting data sent by a user equipment. The first device and/or the second device include, but are not limited to, a switch, a router, a softswitch, a network Protocol Multimedia Subsystem (IMS), and the like.

The term "service data", which may also be referred to as "user data", may include a variety of media streams, such as media streams, transmitted over a transmission link between user equipments after a service connection has been successfully established. Specifically, the media stream data may be video data, voice data, short message data, and the like. If the media stream data is interrupted, the media stream data will have a great influence on the user, and the user experience is poor, so that the method provided by the embodiment of the invention improves the frequency of sending the fault detection message when the media stream is detected to be interrupted suddenly in a service connection state, namely, in a stage of normally transmitting the media stream between user equipment, so as to quickly detect the interface with the fault.

In a specific implementation, before a service connection is not successfully established, media stream data may not be transmitted between the user equipment and the network, some control plane signaling for establishing the service connection may be transmitted, and further, through signaling interaction of these control planes, a session (session) of the media plane is successfully established, that is, the service connection is successfully established, and then, the media stream data may be transmitted between the user equipment. Because media stream data cannot be transmitted between user equipment when the service connection is not successfully established, only a small amount of control plane signaling for establishing the service connection is transmitted, and the interaction process of the control plane signaling for establishing the service connection is very fast, in the embodiment of the invention, when the service connection is not successfully established, for example, in the establishing process of the service connection, the sending frequency of a smaller fault detection message is used, the signaling overhead is saved, and the consumption of network resources is reduced.

The term "and/or" is merely an associative relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The failure detection message in the embodiment of the present invention may be a message capable of detecting whether a device and a link between devices have a failure, and includes, but is not limited to, a BFD and Address Resolution Protocol (APR) message.

The following describes a detection mechanism of a BFD packet by taking the first device and the second device as an example.

The first device and the second device negotiate through the control signaling, and negotiate parameters of the BFD session, such as a session identifier, an expected received BFD packet, a minimum time interval for sending the BFD packet, a home terminal BFD session state, and the like. And the control signaling is packaged in the UDP stripe for transmission, and after the negotiation is successful, the BFD session is established between the first device and the second device. Two ways may be specifically included.

In the first mode, the first device periodically sends a BFD packet to the second device, the second device periodically sends the BFD packet to the first device, and if the first device does not receive the BFD packet sent by the second device within a certain time period, the second device and/or a link between the first device and the second device is considered to have a fault. The failure of the link between the first device and the second device may specifically include a failure of any one or more of the first device, the second device, a transmission device on the link between the first device and the second device, and a transmission line between the first device and the second device. In order to meet the requirement of rapid detection, the BFD protocol specifies that the unit of the sending interval and the receiving interval of the BFD message is microsecond. However, due to the processing capability of the prior art, the sending and receiving time interval of the BFD message configured by the equipment of most manufacturers is in the order of milliseconds.

And if the first equipment does not receive the response sent by the second equipment within the preset time length, the second equipment and/or a link between the first equipment and the second equipment are considered to have a fault. The link between the first device and the second device may include a device between the first device and the second device, and a transmission line between the first device and the second device.

The ARP is used to implement mapping between an Internet Protocol (IP) address and a Media Access Control (MAC) address in a three-layer network in the ethernet. The ARP related protocol is RFC826, RFC903, etc.

The principle on which ARP is based is: and inquiring the MAC address corresponding to a certain IP address in the same network segment of the Ethernet in a broadcasting way so as to realize the dynamic mapping between the three-layer IP address and the two-layer MAC address. This is a protocol supported by any ethernet host device and may also be referred to as ARP as layer 2.5 protocol.

The following describes a detection mechanism of the ARP packet by taking the first device and the second device as an example.

The first device sends an APR request in a broadcast mode, and the target IP of the APR request is the IP of the second device. The ethernet devices, including the second device, all receive the APR request, but only the second device of the ethernet devices responds to the APR request. The second device sends an ARP response message including the MAC address of the second device to the first device, and after receiving the ARP response message, the first device may communicate with the second device using the MAC address of the second device. In the process, the first device successfully receives the APR response sent by the second device, that is, it is determined that the second device is not faulty.

When the second equipment or the link between the first equipment and the second equipment is judged to have a fault in the above mode, the system can be switched to the standby network in time so as to improve the reliability of data transmission.

Based on the above, the following describes a system architecture to which the embodiments of the present invention are applicable. Fig. 2 is a schematic diagram illustrating a system architecture to which an embodiment of the present invention is applicable. As shown in fig. 2, the system comprises a user equipment 201 used by a user a, a router 202 connected with the user equipment, the router 202 is connected with a switch 203 and a switch 204, the switch 203 is connected with the switch 204, the switch 203 and the switch 204 are connected with a core network device 205 and a core network device 206, the core network device 205 and the core network device 206 are connected with a switch 207 and a switch 208, the switch 207 and the switch 208 are connected with a router 209, and the router 209 is connected with a user equipment 210 of a user B. Optionally, the user equipment in the embodiment of the present invention may be connected to multiple routers, and the routers may also be connected to multiple user equipments. In a data center, core network devices are typically virtual machines.

In this embodiment of the present invention, any one of the first device or the second device may be any one of the router, the switch, and the core network device, and the first device and the second device are two different devices. The fault detection device in the embodiment of the present invention may be installed in the first device, or in the second device, or one fault detection device may be installed in each of the first device and the second device. The data transmitted by the user equipment 201 may be transmitted to the user equipment 210 through a plurality of links, for example, one link connects the router 202, the switch 203, the core network device 205, the switch 207, the router 209, and the user equipment 210 in sequence for the user equipment 201. Assuming that the first device is a core network device 205, the second device is a router 209, and fault detection may be performed between the first device and the second device, when detecting that the link or a device on the link fails, reporting to an upper layer application, and switching to a standby link, for example, detecting that a switch 207 on the link between the second device and the first device fails, and at this time, switching to a new link, for example, the user device 201 sequentially connects the router 202, the switch 203, the core network device 205, the switch 208, the router 209, and the user device 210. Thus, the reliability of the system architecture can be improved.

Based on the above, and the system architecture shown in fig. 2, fig. 3 shows a schematic flow chart of a fault detection method provided by an embodiment of the present invention, as shown in fig. 3, including:

step 301, determining that service connections are not established between all user equipment corresponding to a first device and a second device; the service data of the user equipment corresponding to the second equipment is transmitted through the second equipment and the first equipment;

step 302, determining the frequency of the first device for sending the fault detection message, and when it is determined that the frequency of the first device for sending the fault detection message is not less than a first threshold, adjusting the frequency of the first device for sending the fault detection message so that the adjusted frequency of the first device for sending the fault detection message is less than the first threshold; and/or

Determining the frequency of the second equipment for sending the fault detection message; and when the frequency of the second equipment for sending the fault detection message is not less than the second threshold value, adjusting the frequency of the second equipment for sending the fault detection message so as to enable the adjusted frequency of the second equipment for sending the fault detection message to be less than the second threshold value. Optionally, the first threshold may be equal to the second threshold, or the first threshold and the second threshold may be dynamically determined according to a specific implementation environment, and the first threshold may be greater than or less than the second threshold.

In step 301, there are various connection methods between the user equipment corresponding to the second device and the first device and the second device, for example, the user equipment is connected to the second device through other devices, the second device is connected to the first device through other devices, or the user equipment is directly connected to the second device, and the second device is directly connected to the first device. No matter how the user equipment corresponding to the second device is connected with the first device and the second device, the service data of the user equipment needs to be transmitted through the first device and the second device.

In step 301, specifically, the step of establishing a service connection between the ue and the first device refers to that the ue transmits a request for establishing a service connection with another ue through the second device and the first device, and after the service connection is successfully established, the service connection is successfully established between the ue and the second device, between the ue and the first device, and between the ue and another ue, and communication can be performed through the successfully established service connection link, that is, service data is transmitted.

In the embodiment of the present invention, there are various ways to determine the frequency of the fault detection packet sent by the first device, for example, by obtaining a parameter of a timer used for determining the frequency of the fault detection packet sent by the first device, and changing a time parameter of the timer, so as to achieve the purpose of adjusting the frequency of the fault detection packet sent by the first device. The frequency of the fault detection message sent by the second equipment is determined, the parameter of a timer used for determining the frequency of the fault detection message sent by the second equipment can be obtained through the transmission signaling, and the time parameter of the timer is changed, so that the purpose of adjusting the frequency of the fault detection message sent by the second equipment is achieved. For example, if the predetermined time of the timer for determining the frequency of sending the fault detection message by the first device is 10 milliseconds, the first device sends the fault detection message every 10 milliseconds, and if the time of the timer is set to 20 milliseconds, the first device sends the fault detection message every 20 milliseconds, so that the frequency of sending the fault detection message by the first device is reduced.

In step 302, the frequency of the fault detection packet sent by the first device to the second device may be changed, and the second device may return a response after receiving the fault detection packet, so that the frequency of the fault detection packet sent by the first device is reduced, and the frequency of the response sent by the second device is also reduced, thereby reducing data transmission and reducing network load.

Another implementation manner is that the frequency of the fault detection packet sent by the second device to the first device may be changed, and the first device may respond after receiving the fault detection packet.

The third implementation manner may be to change the frequency of the fault detection packet sent by the first device to the second device and the frequency of the fault detection packet sent by the second device to the first device at the same time, so that the frequency of the fault detection packet sent by the first device is reduced, and the frequency of the fault detection packet sent by the second device is also reduced, thereby reducing data transmission and reducing network load.

Optionally, when it is determined that a service connection is established between at least one user equipment corresponding to the second device and the first device, determining the amount of service data sent by the second device and received within a preset time period; the preset time length can be determined according to specific situations, for example, set to be 1 second or 10 seconds according to experience;

And when the number of the service data is determined to be zero, determining the frequency of the second equipment for sending the fault detection message, and when the frequency of the second equipment for sending the fault detection message is determined to be smaller than a second threshold value, adjusting the frequency of the second equipment for sending the fault detection message so that the adjusted frequency of the second equipment for sending the fault detection message is not smaller than the second threshold value.

Optionally, when determining that a service connection is established between at least one user equipment connected to a second device and the first device, determining the amount of service data sent by the second device and received within a preset time period;

when the number of the service data is determined not to be zero and the first equipment sends a fault detection message to the second equipment, adjusting the frequency of the fault detection message sent by the first equipment so as to enable the adjusted first equipment to stop sending the fault detection message to the second equipment; and/or

And when the number of the service data is determined not to be zero and the second equipment sends the fault detection message to the first equipment, adjusting the frequency of the fault detection message sent by the second equipment so as to enable the adjusted second equipment to stop sending the fault detection message to the first equipment.

Another optional implementation manner is that when determining that a service connection is established between at least one user equipment connected with a second device and a first device, when determining the number of service data sent by the second device received within a preset time period;

When the number of the service data is determined not to be zero, determining the frequency of the second equipment for sending the fault detection message; and when the frequency of the second equipment for sending the fault detection message is not less than the second threshold value, adjusting the frequency of the second equipment for sending the fault detection message so as to enable the adjusted frequency of the second equipment for sending the fault detection message to be less than the second threshold value.

In the foregoing embodiment, optionally, when it is determined that the frequency at which the first device sends the fault detection packet is not less than the first threshold, the frequency at which the first device sends the fault detection packet is adjusted according to the number of the service data; the smaller the quantity of the service data is, the larger the frequency of sending the fault detection message by the adjusted first equipment is; when the frequency of the second equipment for sending the fault detection message is determined to be not less than a second threshold value, adjusting the frequency of the second equipment for sending the fault detection message according to the quantity of the service data; the smaller the quantity of the service data is, the larger the frequency of sending the fault detection message by the adjusted second device is.

Therefore, the sending frequency of the fault detection message can be flexibly determined according to the sending quantity of the service data corresponding to the user equipment, the detection of the link and the equipment is more effectively realized, the network load is more effectively reduced, the network overhead is reduced, and the network resources are saved.

In order to more clearly introduce the above method flow, fig. 3a exemplarily shows a schematic flow chart of another fault detection method provided by the embodiment of the present invention, as shown in fig. 3a, including:

step 3101, determining whether service connections are established between all user equipments corresponding to the second equipment and the first equipment, if not, executing step 3102, and if so, executing step 3103;

step 3102, determining the frequency of the first device sending the fault detection message, and when it is determined that the frequency of the first device sending the fault detection message is not less than the first threshold, adjusting the frequency of the first device sending the fault detection message so that the adjusted frequency of the first device sending the fault detection message is less than the first threshold; and/or

Determining the frequency of the second equipment for sending the fault detection message; and when the frequency of the second equipment for sending the fault detection message is not less than the second threshold value, adjusting the frequency of the second equipment for sending the fault detection message so as to enable the adjusted frequency of the second equipment for sending the fault detection message to be less than the second threshold value.

Step 3103, determining the number of the service data sent by the second device received within a preset time period, and determining whether the number of the service data is zero; if yes, go to step 3104; if not, go to step 3105 or step 3106;

step 3104, determining the frequency of the first device sending the fault detection message, and when determining that the frequency of the first device sending the fault detection message is smaller than a first threshold, adjusting the frequency of the first device sending the fault detection message so that the adjusted frequency of the first device sending the fault detection message is not smaller than the first threshold; and/or

And when the frequency of the second equipment for sending the fault detection message is smaller than a second threshold value, the frequency of the second equipment for sending the fault detection message is adjusted, so that the adjusted frequency of the second equipment for sending the fault detection message is not smaller than the second threshold value.

Step 3105, when it is determined that the failure detection message is sent to the second device, adjusting the frequency of sending the failure detection message by the first device, so that the adjusted first device stops sending the failure detection message to the second device; and/or

And when determining that the second equipment sends the fault detection message to the first equipment, adjusting the frequency of the fault detection message sent by the second equipment so as to enable the adjusted second equipment to stop sending the fault detection message to the first equipment.

Step 3106, determining the frequency of the first device sending the fault detection message; when the frequency of sending the fault detection message by the first equipment is determined to be not less than a first threshold value, adjusting the frequency of sending the fault detection message by the first equipment so as to enable the adjusted frequency of sending the fault detection message by the first equipment to be less than the first threshold value; and/or

To describe the above method more clearly, fig. 3b illustrates an exemplary schematic diagram of a relationship between a sending frequency of a fault detection packet and a quantity of service data according to an embodiment of the present invention. As shown in fig. 3b, the thick solid line indicates the amount of service data, and the dotted line indicates the transmission frequency of the failure detection message. When the service connection is not established, the number of the service data between the first device and the second device is zero, and at this time, the fault detection message is sent at a relatively low frequency, for example, the fault detection message is sent at a frequency less than the first threshold. When the service connection is established, the amount of the service data is inversely proportional to the sending frequency of the fault detection message, that is, the larger the amount of the service data is, the lower the sending frequency of the fault detection message is, and preferably, when the amount of the service data is larger, the sending of the fault detection message may be stopped. When the service connection is established but the number of the service data is zero, the sending frequency of the fault detection message is increased so as to rapidly locate the equipment or the transmission line which sends the fault.

From the above, it can be seen that: in the embodiment of the invention, service connection is not established between all user equipment corresponding to the first equipment and the second equipment; the service data of the user equipment corresponding to the second equipment is transmitted through the second equipment and the first equipment; determining the frequency of sending the fault detection message by the first equipment, and adjusting the frequency of sending the fault detection message by the first equipment when the frequency of sending the fault detection message by the first equipment is not less than a first threshold value, so that the adjusted frequency of sending the fault detection message by the first equipment is less than the first threshold value; and/or determining the frequency of the fault detection message sent by the second equipment; and when the frequency of the second equipment for sending the fault detection message is not less than the second threshold value, adjusting the frequency of the second equipment for sending the fault detection message so as to enable the adjusted frequency of the second equipment for sending the fault detection message to be less than the second threshold value. When determining that service connection is not established between the first device and all user devices corresponding to the second device, the user device corresponding to the second device does not send service data to the first device, so that at this time, it is not necessary to send a fault detection message at a high frequency, at this time, when determining that the frequency of sending the fault detection message by the first device is not less than a first threshold, the frequency of sending the fault detection message by the first device is adjusted so that the adjusted frequency of sending the fault detection message by the first device is less than the first threshold, and/or when determining that the frequency of sending the fault detection message by the second device is not less than a second threshold, the frequency of sending the fault detection message by the second device is adjusted so that the adjusted frequency of sending the fault detection message by the second device is less than the second threshold, that is, the sending frequency of the fault detection message is reduced, thereby reducing network load, network overhead is reduced, and network resources are saved.

Fig. 4 schematically shows a structural diagram of a fault detection device according to an embodiment of the present invention.

Based on the same concept, an embodiment of the present invention provides a fault detection apparatus 400, as shown in fig. 4, including a determination unit 401 and a processing unit 402:

the processing unit is used for adjusting the frequency of the fault detection message sent by the first equipment when the determining unit determines that the frequency of the fault detection message sent by the first equipment is not less than the first threshold value, so that the adjusted frequency of the fault detection message sent by the first equipment is less than the first threshold value; and/or

And when the determining unit determines that the frequency of the fault detection message sent by the second device is not less than the second threshold, adjusting the frequency of the fault detection message sent by the second device so as to enable the adjusted frequency of the fault detection message sent by the second device to be less than the second threshold.

Optionally, the determining unit is further configured to:

when determining that service connection is established between at least one user equipment corresponding to the second equipment and the first equipment, determining the quantity of service data sent by the second equipment and received by the first equipment within a preset time length;

a processing unit further to:

when the determining unit determines that the quantity of the service data is zero, determining the frequency of sending the fault detection message by the first equipment, and when the frequency of sending the fault detection message by the first equipment is determined to be smaller than a first threshold value, adjusting the frequency of sending the fault detection message by the first equipment so that the adjusted frequency of sending the fault detection message by the first equipment is not smaller than the first threshold value; and/or

When the determining unit determines that the quantity of the service data is zero, the frequency of the second device for sending the fault detection message is determined, and when the frequency of the second device for sending the fault detection message is determined to be smaller than a second threshold value, the frequency of the second device for sending the fault detection message is adjusted, so that the adjusted frequency of the second device for sending the fault detection message is not smaller than the second threshold value.

Optionally, the processing unit is further configured to:

when the determining unit determines that the quantity of the service data is not zero and the first device sends the fault detection message to the second device, adjusting the frequency of sending the fault detection message by the first device so as to enable the adjusted first device to stop sending the fault detection message to the second device; and/or

When the determining unit determines that the amount of the service data is not zero and the second device sends the fault detection message to the first device, the frequency of sending the fault detection message by the second device is adjusted, so that the adjusted second device stops sending the fault detection message to the first device.

Optionally, the processing unit is further configured to:

when the determining unit determines that the quantity of the service data is not zero, determining the frequency of sending the fault detection message by the first equipment; when the frequency of sending the fault detection message by the first equipment is determined to be not less than a first threshold value, adjusting the frequency of sending the fault detection message by the first equipment so as to enable the adjusted frequency of sending the fault detection message by the first equipment to be less than the first threshold value; and/or

When the determining unit determines that the quantity of the service data is not zero, determining the frequency of sending the fault detection message by the second equipment; and when the frequency of the second equipment for sending the fault detection message is not less than the second threshold value, adjusting the frequency of the second equipment for sending the fault detection message so as to enable the adjusted frequency of the second equipment for sending the fault detection message to be less than the second threshold value.

Optionally, the processing unit is specifically configured to:

when the frequency of sending the fault detection message by the first equipment is determined to be not less than a first threshold value, adjusting the frequency of sending the fault detection message by the first equipment according to the quantity of the service data; the smaller the quantity of the service data is, the larger the frequency of sending the fault detection message by the adjusted first equipment is;

when the frequency of the second equipment for sending the fault detection message is determined to be not less than a second threshold value, adjusting the frequency of the second equipment for sending the fault detection message according to the quantity of the service data; the smaller the quantity of the service data is, the larger the frequency of sending the fault detection message by the adjusted second device is.

Fig. 5 schematically shows a structural diagram of another fault detection device provided in an embodiment of the present invention.

Based on the same concept, another fault detection apparatus 500 is provided in the embodiment of the present invention, as shown in fig. 5, including a transceiver 510, a memory 520, and a processor 530:

a processor for reading the program in the memory, performing the following processes:

When the frequency of the fault detection message sent by the second equipment is determined to be not less than the second threshold value, adjusting the frequency of the fault detection message sent by the second equipment so that the adjusted frequency of the fault detection message sent by the second equipment is less than the second threshold value;

the memory is used for storing the first threshold value, the second threshold value and other related data in the process of executing the flow of the method;

a transceiver for transmitting and receiving signaling.

Optionally, the processor is further configured to:

Optionally, the processor is specifically configured to:

Where in fig. 5 the bus architecture may include any number of interconnected buses and bridges, with various circuits of the memory represented by the memory and one or more processors represented by the processors linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor is responsible for managing the bus architecture and the usual processing, and the memory may store data used by the processor in performing operations.

It should be apparent to those skilled in the art that embodiments of the present invention may be provided as a method, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A method of fault detection, comprising:

2. The method according to claim 1, wherein after determining that the number of the service data sent by the second device and received by the first device within a preset time period when determining that the service connection is established between the first device and at least one user equipment corresponding to the second device, the method further includes:

3. The method according to claim 1, wherein after determining that the number of the service data sent by the second device and received by the first device within a preset time period when determining that the service connection is established between the first device and at least one user equipment corresponding to the second device, the method further includes:

4. The method according to claim 3, wherein the adjusting the frequency of the failure detection packet sent by the first device when it is determined that the frequency of the failure detection packet sent by the first device is not less than the first threshold value specifically includes:

5. A fault detection device, comprising:

When the determining unit determines that the frequency of sending the fault detection message by the second device is not less than a second threshold, adjusting the frequency of sending the fault detection message by the second device so that the adjusted frequency of sending the fault detection message by the second device is less than the second threshold;

the determining unit is further configured to:

the processing unit is further configured to:

6. The device of claim 5, wherein the processing unit is further to:

7. The device of claim 5, wherein the processing unit is further to:

8. The device of claim 7, wherein the processing unit is specifically configured to:

9. A fault detection device, comprising:

a memory for storing the first threshold and the second threshold;

the processor is further configured to:

10. The device of claim 9, wherein the processor is further configured to:

11. The device of claim 9, wherein the processor is further configured to:

12. The device of claim 11, wherein the processor is specifically configured to: