CN107360012B - Link state processing method and network node equipment - Google Patents
Link state processing method and network node equipment Download PDFInfo
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- CN107360012B CN107360012B CN201610305626.2A CN201610305626A CN107360012B CN 107360012 B CN107360012 B CN 107360012B CN 201610305626 A CN201610305626 A CN 201610305626A CN 107360012 B CN107360012 B CN 107360012B
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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
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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
- H04L41/0677—Localisation of faults
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Abstract
The invention discloses a link processing method and network node equipment. In the method, when the state of a first link is a first state, a first network node device sends an activation message to a second network node device, and starts a timer, wherein the first link is a link between the first network node device and the second network node device, and the first state indicates that the states of the first link at the first network node device side and the second network node device side are both reset; if the activation message or the service data sent by the second network node device is not received before the timer is overtime, the state of the first link is set to be a second state, and the second state indicates that the state of the first link at the first network node side is reset and the state at the second network node device side is unknown. And the follow-up troubleshooting work is facilitated. And the inconsistency of the link states of the first network node device and the second network node device can be avoided when a failure is sent.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a link state processing method and a network node device.
Background
TIPC (Transparent Inter-process Communication) is a network Communication protocol for Inter-process Communication, and is mainly applicable to High Availability (HAL) and dynamic trunking environments. It allows designers to create applications that can communicate quickly and reliably with other applications regardless of the location in the fleet environment of other applications that need to communicate.
TIPC has the following advantages over other communication protocols: 1) by using the functional address, the communication address transparency is realized in the whole cluster system; 2) the network topology service is provided, and the change of the network topology can be responded in time; 3) providing a communication redundancy mechanism, when a plurality of communication links work between two processor nodes, selecting a certain link for communication and automatically sending a message through another link when the link connection is failed or congested; 4) the user can set the importance level of the sent message, and when the communication link is blocked, the importance level of the message determines the processing of the message in the TIPC; 5) not only can provide the communication between the processes, but also can realize the transparent communication between the processes, the kernel and the kernel; 6) TIPC only implements the data link layer and above in the OSI (Open System Interconnection) reference model, without making any assumptions about the implementation of the physical layer. In theory, this ensures that the implementation of the TIPC physical layer can be any underlying communication protocol.
When the link status between two network node devices is Reset-Reset, that is, the link status on both network node device sides is Reset, if the network node device sends a failure, the TIPC link status recorded in the network node device may be inconsistent with the actual link status.
Disclosure of Invention
The embodiment of the invention provides a link state processing method and network node equipment, which are used for setting the state of a second network node equipment side to be unknown when the states of a first link on the first network node equipment side and the second network node equipment side are both reset.
The link state processing method provided by the embodiment of the invention comprises the following steps:
when the state of the first link is a first state, the first network node equipment sends an activation message to the second network node equipment and starts a timer; wherein the first link is a link between the first network node device and the second network node device, and the first state indicates that the states of the first link at the first network node device side and the second network node device side are both reset;
if the activation message or the service data sent by the second network node device is not received before the timer is overtime, setting the state of the first link to be a second state, wherein the second state indicates that the state of the first link at the first network node side is reset and the state at the second network node device side is unknown.
Further, after setting the state of the first link to the second state, the method further includes:
sending a reset message to the second network node device.
Optionally, after sending the reset message to the second network node device, the method further includes:
and if receiving an activation message sent by the second network node device, setting the state of the first link to be a third state, wherein the third state indicates that the states of the first link at the first network node device side and the second network node device side are both working.
Optionally, the method further comprises:
if the activation message or the service data sent by the second network node device is received before the timer is overtime, setting the state of the first link to be a third state, wherein the third state indicates that the states of the first link at the first network node device side and the second network node device side are both working.
Optionally, the first link is a transparent inter-process communication TIPC link.
An embodiment of the present invention provides a network node device, where the network node device establishes a first link between a first network node device and a second network node device, and the network node device includes:
a sending module, configured to send an activation message to a second network node device when a state of a first link of a first network node device is a first state, and start a timer; wherein the first link is a link between the first network node device and the second network node device, and the first state indicates that the states of the first link at the first network node device side and the second network node device side are both reset;
a setting module, configured to set the state of the first link to a second state if the activation message or the service data sent by the second network node device is not received before the timer expires, where the second state indicates that the state of the first link at the first network node device side is reset and the state at the second network node device side is unknown.
Further, the sending module is further configured to:
sending a reset message to the second network node device after the setting module sets the state of the first link to a second state.
Optionally, the setting module is further configured to:
after the sending module sends a reset message to the second network node device, if an activation message sent by the second network node device is received, the state of the first link is set to a third state, and the third state indicates that the states of the first link on the first network node device side and the second network node device side are both working.
Optionally, the setting module is further configured to:
if the activation message or the service data sent by the second network node device is received before the timer is not overtime, setting the state of the first link to be a third state, wherein the third state indicates that the states of the first link at the first network node device side and the second network node device side are both working.
Optionally, the first link is a transparent inter-process communication TIPC link.
In the above embodiment of the present invention, when the states of the first link at the first network node device side and the second network node device side are both reset, if the first network node device does not receive the activation message or the service data sent by the second network node device before the timer times out, the first network node device sets the state of the first link to the second state, so as to facilitate troubleshooting.
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 inventive exercise.
FIG. 1 is a diagram illustrating a prior art link state;
fig. 2 is a schematic flowchart of a link state processing method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a link state provided in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a network node 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 clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
When two network node devices communicate based on the TIPC communication protocol, each network node device records the state of a link between the two network node devices. The following description will be made with reference to fig. 1 by taking the link state between the network node device a and the network node device B recorded by the network node device a as an example. The state of the link recorded by network node device a may include the following:
(1) Reset-Unknown (Reset-Unknown)
Where Reset indicates that the state of the link on the network node apparatus a side is Reset, and unsewn identifies that the state of the link on the network node apparatus B side is Unknown.
When the network node device a is restarted, the LINK state is set to Reset-Unknown, and a Reset message (LINK _ PROTOCOL/Reset _ MSG or Reset _ MSG) is sent to the network node device B according to a preset period, so that the network node device B is informed of the state of the network node device a in the LINK.
If a Reset message sent by network node device B is received, network node device a sets the state of the link to Reset-Reset. If receiving the activation message (LINK _ PROTOCOL/ACTIVATE _ MSG or ACTIVATE _ MSG) sent by the network node device B, indicating that the state of the LINK recorded by the network node device B is Reset-Reset, the network node device a sets the state of the LINK to Working-Working.
(2)Reset-Reset
The status indicates that the link is in a reset state at both network node device a and network node device B.
When the link status recorded by the network node device a is Reset-Reset, the network node device a sends an activation message to the network node device B according to a preset period. If the network node device a receives the activation message or the service data (TRAFFIC) sent by the network node device B, the network node device a sets the state of the link to Working-Working.
(3)Working-Working
The state indicates that the link is working in both the states of the network node device a and the network node device B, that is, in the state, the network node device a and the network node device B can transmit and receive service data therebetween.
When the link state recorded by the network node device a is Working-Working, a timer is started, and if the network node device a does not receive service data or other messages sent by the network node device B within a preset time, the link state is set to Working-Unknown; if the network node device a receives the Reset message sent by the network node device B, the state of the link is set to Reset-Reset.
(4)Working-Unknown
Here, Working indicates that the state of the link on the network node device a side is Working, and unsewn indicates that the state of the link on the network node device B side is Unknown.
When the link state recorded by the network node device a is Working-Unknown, a link state message is sent to the network node device B, and a PROBE field in the message is used for notifying the network node device B to respond to the network node device a. If the network node device A receives the service data sent by the network node device B or the message except the reset message within the preset time, setting the state of the link to be Working-Working; if the network node device a receives the Reset message sent by the network node device B within the preset time, the state of the link is set to Reset-Reset, and if the network node device a does not receive the response of the network node device B within the preset time, the state of the link is set to Reset-Unkown.
In the process of practical application, the inventor finds that the following problems exist: when the link state recorded by the network node device a is Reset-Reset, an activation message is sent to the network node device B, and the network node device B sets the link state as Working-Working, if a receiving device of the network node device a fails, or a sending device of the network node device B fails, or other failures occur, the network node device a cannot receive the message sent by the network node device B, and at this time, the link state recorded by the network node device a keeps Reset-Reset unchanged, but is inconsistent with the link state recorded by the network node device B and the actual state of the link, thereby affecting data transceiving between the network node device a and the network node device B.
Therefore, an embodiment of the present invention provides a link status processing method to solve the above problem.
Referring to fig. 2, a schematic flow chart of a link status processing method according to an embodiment of the present invention is shown, where as shown in the drawing, the method includes the following steps:
step 201, when the state of the first link is the first state, the network node device a sends an activation message to the network node device B.
The first link is a link between a network node device A and a network node device B; the first state indicates that the states of the first link at both the network node device a side and the network node device B side are reset.
When the state of the first link is the first state, the network node device B sets the recorded state of the first link to the third state due to receiving the activation message sent by the network node device a, that is, the states of the first link at the network node device a side and the network node device B side are both working.
Specifically, the time preset by the timer may be obtained by counting the time from when the network node device a sets the state of the first link to the first state to when the activation information sent by the network node device B is received. According to the statistical result, a time threshold may be set, and if the network node device a does not receive the activation message or the service data sent by the network node device B within the set time threshold, it may be considered that the network node device a does not receive the activation message or the service data sent by the network node device B any more.
The second state indicates that the state of the first link on the network node device a side is reset and the state on the network node device B side is unknown.
Further, after the network node device a sets the state of the first link to the second state, the reset message may be sent to the network node device B according to a preset period.
If the network node device a receives the activation message sent by the network node device B, the state of the first link is set to the third state, the state of the first link recorded by the network node device B is the third state, and after receiving the reset message sent by the network node device a, the state of the first link recorded by the network node device B is correspondingly set to the first state.
Through the steps, the link states of the network node device A and the network node device B are prevented from being inconsistent when a fault occurs.
In order to more clearly understand the above embodiments, the link processing method described above is applied to the TIPC link, and is described with reference to specific embodiments.
Still take the link state between the network node device a and the network node device B recorded by the network node device a as an example, where the receiving apparatus of the network node device a sends a failure, cannot receive a message, and the network node device B is normal. After applying the link state processing method provided by the embodiment of the present invention, the link state thereof can be as shown in fig. 3.
The link state diagram shown in fig. 3 adds the transition from the Reset-Reset state to the Reset-Unknown state compared to the link state diagram shown in fig. 1.
When the link status recorded by the network node device a is Reset-Reset, a timer is started and an activation message is sent to the network node device B. At this time, the link status recorded by the network node device B is also Reset-Reset, and the network node device B sets the link status recorded by the network node device B to work-work due to receiving the activation message sent by the network node device a.
If the network node device a does not receive the activation message or the service data sent by the network node device B before the timer expires, the network node device a sets the recorded state of the link to Reset-Unknown, and then sends a Reset message to the network node device B. Network node device B changes its recorded state of the link from Working-Working to Reset-Reset upon receiving the Reset message sent by network node device a, and sends an activation message to network node device a. Since the link state recorded by the network node apparatus a is Reset-Unknown and cannot receive the activation message sent by the network node apparatus B, the activation message is not sent to the network node apparatus B. Since the network node apparatus B has not received the activation message sent by the network node apparatus a for a long time, the link state it has recorded is set to Reset-Unknown. Therefore, the link states recorded by the network node device a and the network node device B are consistent, so that the troubleshooting work is facilitated.
In the above embodiment of the present invention, when the states of the first link at the network node device a side and the network node device B side are both reset, if the network node device a does not receive the activation message or the service data sent by the network node device B before the timer times out, the network node device a sets the state of the first link to the second state, which is convenient for subsequent troubleshooting work. Since the network node device a sends the reset message to the network node device B, it is possible to avoid the link states of the network node device a and the network node device B from being inconsistent when a failure occurs.
Based on the same technical concept, the embodiment of the invention also provides network node equipment. Referring to fig. 4, which is a schematic structural diagram of a network node device according to an embodiment of the present invention, as shown in the figure, the network node device includes a sending module 401 and a setting module 402, where a first link is established between the network node device a and the network node device B.
A sending module 401, configured to send an activation message to the network node device B when the state of the first link is the first state, and start a timer. The timer may be integrated in the transmitting module or may be set independently.
The first link is a link between the network node device a and the network node device B, and the first state indicates that the states of the first link at the network node device a side and the network node device B side are both reset.
A setting module 402, configured to set the state of the first link to a second state if the activation message or the service data sent by the network node device B is not received before the timer expires, where the second state indicates that the state of the first link at the network node device a side is reset and the state at the network node device B side is unknown.
Preferably, the sending module 401 is further configured to: after the setting module 402 sets the state of the first link to the second state, a reset message is sent to the network node device B.
Preferably, the setting module 402 is further configured to: after the sending module 401 sends the reset message to the network node device B, if the activation message sent by the network node device B is received, the state of the first link is set to the third state, where the third state indicates that the states of the first link on the network node device a side and the network node device B side are both working.
Preferably, the setting module 402 is further configured to: and if the activation message or the service data sent by the network node equipment B is received before the timer is overtime, setting the state of the first link to be a third state.
In particular, the first link may be a TIPC link.
In the above embodiment of the present invention, when the states of the first link at the network node device a side and the network node device B side are both reset, if the network node device a does not receive the activation message or the service data sent by the network node device B before the timer times out, the network node device a sets the state of the first link to the second state, which is convenient for subsequent troubleshooting work. Since the network node device a sends the reset message to the network node device B, it is possible to avoid the link states of the network node device a and the network node device B from being inconsistent at the time of sending the failure.
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 (8)
1. A method for link state processing, comprising:
when the state of the first link is a first state, the first network node equipment sends an activation message to the second network node equipment and starts a timer; wherein the first link is a link between the first network node device and the second network node device, and the first state indicates that the states of the first link at the first network node device side and the second network node device side are both reset;
if the activation message or the service data sent by the second network node device is not received before the timer is overtime, setting the state of the first link to be a second state, wherein the second state indicates that the state of the first link at the first network node side is reset and the state at the second network node device side is unknown, and sending a reset message to the second network node device, so that the second network node device sets the state of the first link to be the first state after receiving the reset message, and sets the state of the first link to be the second state when the activation message sent by the first network node device is not received within a set time length.
2. The method of claim 1, after sending a reset message to the second network node device, further comprising:
and if receiving an activation message sent by the second network node device, setting the state of the first link to be a third state, wherein the third state indicates that the states of the first link at the first network node device side and the second network node device side are both working.
3. The method of claim 1, further comprising:
if the activation message or the service data sent by the second network node device is received before the timer is overtime, setting the state of the first link to be a third state, wherein the third state indicates that the states of the first link at the first network node device side and the second network node device side are both working.
4. The method of claim 1, wherein the first link is a transparent interprocess communication, TIPC, link.
5. A network node device, as a first link established between a first network node device and a second network node device, comprising:
a sending module, configured to send an activation message to a second network node device when a state of a first link of a first network node device is a first state, and start a timer; wherein the first link is a link between the first network node device and the second network node device, and the first state indicates that the states of the first link at the first network node device side and the second network node device side are both reset;
a setting module, configured to set the state of the first link to a second state if the activation message or the service data sent by the second network node device is not received before the timer expires, where the second state indicates that the state of the first link at the first network node device side is reset and the state at the second network node device side is unknown, and send a reset message to the second network node device, so that the second network node device sets the state of the first link to the first state after receiving the reset message, and sets the state of the first link to the second state when the activation message sent by the first network node device is not received within a set duration.
6. The network node device of claim 5, wherein the setup module is further to:
after the sending module sends a reset message to the second network node device, if an activation message sent by the second network node device is received, the state of the first link is set to a third state, and the third state indicates that the states of the first link on the first network node device side and the second network node device side are both working.
7. The network node device of claim 5, wherein the setup module is further to:
if the activation message or the service data sent by the second network node device is received before the timer is not overtime, setting the state of the first link to be a third state, wherein the third state indicates that the states of the first link at the first network node device side and the second network node device side are both working.
8. The network node device of claim 5, wherein the first link is a transparent interprocess communication (TIPC) link.
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| CN114363144B (en) * | 2020-09-28 | 2023-06-27 | 华为技术有限公司 | Fault information association reporting method and related equipment for distributed system |
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| US9148465B2 (en) * | 2013-04-01 | 2015-09-29 | Oracle International Corporation | Update management for a distributed computing system |
| CN104125590B (en) * | 2013-04-26 | 2017-10-03 | 富士通株式会社 | link failure diagnosis device and method |
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