CN111756660A - Working link switching method, device, equipment and computer readable storage medium - Google Patents
Working link switching method, device, equipment and computer readable storage medium Download PDFInfo
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- CN111756660A CN111756660A CN202010428868.7A CN202010428868A CN111756660A CN 111756660 A CN111756660 A CN 111756660A CN 202010428868 A CN202010428868 A CN 202010428868A CN 111756660 A CN111756660 A CN 111756660A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/25—Routing or path finding in a switch fabric
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/22—Alternate routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/30—Peripheral units, e.g. input or output ports
Abstract
The invention discloses a method, a device and a system for switching working links and a computer readable storage medium, wherein the method comprises the following steps: setting a main port of a local switch as a root node, and determining a link corresponding to the root node as a working link; detecting whether a working link fails or not; if so, the main port is abandoned, the root node of the local switch is determined according to the preset protocol, the standby link is switched to the working link, the link which is preferentially used is subjectively selected according to the actual running condition of the links between the switches, and the standby link is switched to the working link by replacing the root node, so that the normal transmission of data between the switches is ensured.
Description
Technical Field
The present invention relates to the field of ethernet technologies, and in particular, to a method, an apparatus, a device, and a computer-readable storage medium for working link switching.
Background
The switches are important communication nodes of the Ethernet, when one switch needs to send a message to another switch, a plurality of transmission paths consisting of different links can be provided, the problem of 'broadcast storm' caused by the network robustness requirement that a core layer network needs a standby link and a physical loop formed by the standby link can be solved according to the current spanning tree protocol, but the spanning tree protocol cannot subjectively select a link which preferentially works according to the use condition of equipment in the Ethernet system.
Disclosure of Invention
The invention mainly aims to provide a working link switching method, a working link switching device, working link switching equipment and a computer readable storage medium, and aims to realize the purpose of subjectively selecting a link which works preferentially according to the use condition of equipment in an Ethernet system.
Setting a main port of a local switch as a root node, and determining a link corresponding to the root node as a working link;
detecting whether the working link fails or not;
and if so, abandoning the main port, and determining the root node of the local switch according to a preset protocol so as to switch the standby link into the working link.
Optionally, before the step of setting the active port of the local switch as a root node and determining a link corresponding to the root node as a working link, the method further includes:
and acquiring configuration information, and setting the main port of the local switch according to the configuration information.
Optionally, the step of setting the active port of the local switch as a root node and determining a link corresponding to the root node as a working link includes:
setting a main port of a local switch as a root node, and determining a port with the minimum path overhead value in an upstream switch of the local switch as the root node of the upstream switch;
and determining the port of the upstream switch, which is not the root node, as a designated port, and determining the link between the designated port and the root node of the local switch as the working link.
Optionally, the step of detecting whether the working link fails includes:
judging whether the working link fails or not according to whether the main port of the local switch receives a BPDU message sent by a root switch or not;
if the main port does not receive the BPDU message sent by the upstream switch, judging that the working link has a fault;
and if the main port receives a BPDU message sent by the upstream switch, judging that the working link does not have a fault.
Optionally, if so, after the step of determining the root node of the local switch according to a preset protocol, and switching a standby link to the working link, the method further includes:
judging whether the fault is eliminated according to whether the main port of the local switch receives a BPDU message sent by the upstream switch;
if the fault is eliminated, the main port is set as the root node again, and the link corresponding to the root node is determined as a working link.
In addition, to achieve the above object, the present invention provides an operating link switching apparatus, including:
the setting module is used for setting a main port of the local switch as a root node;
a determining module, configured to determine a link corresponding to the root node as a working link;
the detection module is used for detecting whether the working link fails or not;
the abandoning module is used for abandoning the root node identity of the main port if the root node identity of the main port is the main port;
the determining module is further configured to determine the root node of the local switch according to a preset protocol, so as to switch the standby link to the working link.
In addition, to achieve the above object, the present invention further provides an operating link switching device, which includes a memory, a processor, and an operating link switching program stored in the memory and operable on the processor, and when executed by the processor, the operating link switching program implements the steps of the operating link switching method as described above.
Further, to achieve the above object, the present invention also provides a computer-readable storage medium having the working link switching program stored thereon, which when executed by a processor implements the steps of the working link switching method as described above.
The invention sets the main port of the local switch as the root node, determines the link corresponding to the root node as the working link, detects whether the working link has a fault in real time, if the working link has a fault, the main port is abandoned, the root node of the local switch is determined according to the preset protocol, so as to switch the standby link into the working link, thereby realizing that the standby link is switched into the working link by replacing the root node according to the actual condition of the link operation between the switches, and ensuring the normal transmission of data between the switches.
Drawings
FIG. 1 is a diagram illustrating a hardware configuration of an apparatus for implementing various embodiments of the invention;
fig. 2 is a flowchart illustrating a working link switching method according to a first embodiment of the present invention;
FIG. 3 is a diagram illustrating a first scenario of the first embodiment of the present invention;
FIG. 4 is a diagram illustrating a second scenario of the first embodiment of the present invention;
fig. 5 is a schematic diagram of a third scenario of the first embodiment of the present invention.
The implementation, functional features and advantages of the present invention will be described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a working link switching device, and referring to fig. 1, fig. 1 is a schematic structural diagram of a hardware operating environment according to an embodiment of the present invention.
It should be noted that fig. 1 is a schematic structural diagram of a hardware operating environment of an operating link switching device. The working link switching equipment of the embodiment of the invention can be equipment such as a PC, a portable computer, a server and the like.
As shown in fig. 1, the working link switching device may include: a processor 1001, such as a CPU, a memory 1005, a user interface 1003, a network interface 1004, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Optionally, the active link switching device may further include an RF (Radio Frequency) circuit, a sensor, a WiFi module, and the like.
Those skilled in the art will appreciate that the configuration of the working link switching device shown in fig. 1 does not constitute a limitation of the working link switching device and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer storage readable storage medium, may include therein an operating system, a network communication module, a user interface module, and a working link switching program. The operating system is a program for managing and controlling hardware and software resources of the working link switching device, and supports the operation of the working link switching program and other software or programs.
The working link switching device shown in fig. 1 may be used to implement a link that subjectively selects a preferred operation according to the usage of the device in the ethernet system, and the user interface 1003 is mainly used to detect or output various information, such as input configuration information and output BPDU messages; the network interface 1004 is mainly used for interacting with a background server and communicating; processor 1001 may be configured to invoke a working link switching program stored in memory 1005 and perform the following operations:
setting a main port of a local switch as a root node, and determining a link corresponding to the root node as a working link;
detecting whether the working link fails or not;
and if so, abandoning the main port, and determining the root node of the local switch according to a preset protocol so as to switch the standby link into the working link.
Further, before the step of setting the active port of the local switch as a root node and determining the link corresponding to the root node as a working link, the processor 1001 may be configured to invoke a working link switching program stored in the memory 1005 and execute the following steps:
and acquiring configuration information, and setting the main port of the local switch according to the configuration information.
Further, the step of setting the active port of the local switch as a root node and determining the link corresponding to the root node as a working link includes:
setting a main port of a local switch as a root node, and determining a port with the minimum path overhead value in an upstream switch of the local switch as the root node of the upstream switch;
and determining the port of the upstream switch, which is not the root node, as a designated port, and determining the link between the designated port and the root node of the local switch as the working link.
Further, the step of detecting whether the working link is failed comprises:
judging whether the working link fails or not according to whether the main port of the local switch receives a BPDU message sent by a root switch or not;
if the main port does not receive the BPDU message sent by the upstream switch, judging that the working link has a fault;
and if the main port receives a BPDU message sent by the upstream switch, judging that the working link does not have a fault.
Further, if so, after the step of determining the root node of the local switch according to a preset protocol and switching a standby link to the working link by abandoning the active port, the processor 1001 may be configured to invoke a working link switching program stored in the memory 1005 and execute the following steps:
judging whether the fault is eliminated according to whether the main port of the local switch receives a BPDU message sent by the upstream switch;
if the fault is eliminated, the main port is set as the root node again, and the link corresponding to the root node is determined as a working link.
The invention sets the main port of the local switch as the root node, determines the link corresponding to the root node as the working link, detects whether the working link has a fault in real time, if the working link has a fault, the main port is abandoned, the root node of the local switch is determined according to the preset protocol, so as to switch the standby link into the working link, thus realizing the purpose of subjectively selecting the link which is preferentially used according to the actual condition of the link operation between the switches, and switching the standby link into the working link by replacing the root node, thereby ensuring the normal transmission of data between the switches.
The specific implementation of the mobile terminal of the present invention is basically the same as the following embodiments of the working link switching method, and will not be described herein again.
Based on the above structure, the present invention provides various embodiments of the working link switching method.
The invention provides a working link switching method.
Referring to fig. 2, fig. 2 is a flowchart illustrating a working link switching method according to a first embodiment of the present invention.
In the present embodiment, an embodiment of a working link switching method is provided, and it should be noted that although a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in an order different from that here.
In this embodiment, the working link switching method includes:
step S10, setting the main port of the local switch as a root node, and determining the link corresponding to the root node as a working link;
referring to fig. 3, a switch a is a root switch, a switch C is a local switch, the switch C may receive a BPDU message sent by the root switch a through transmission paths a1-C1, or may receive a BPDU message sent by the root switch a through transmission paths a2-B1-B2-C2, and in order to save network transmission resources, one of the transmission paths is enabled and the other transmission path is disabled by setting a port of the local switch.
Setting a main port of a local switch as a root node, wherein the other port of the local switch is a standby port, a link corresponding to the standby port is a standby link and is in a closed state, a transmission path to which the standby link belongs is in a disabled state, a link corresponding to the root node is a working link, and the transmission path to which the working link belongs is in an enabled state. Similarly, taking fig. 3 as an example, if the port C2 is a main port of the local switch, the main port C2 is set as a root node, the links B2 to C2 corresponding to the root node are working links, the port C1 is a standby port, and the links a1 to C1 corresponding to the standby port are standby links; if the port C1 is a main port of the local switch, the main port C1 is set as a root node, the links a1 to C1 corresponding to the root node are working links, the port C2 is a standby port, and the links B2 to C2 corresponding to the standby port are standby links.
Further, step S10 is preceded by:
step a, obtaining configuration information, and setting the main port of the local switch according to the configuration information.
The configuration information is used for indicating the local switch to configure the main port and the standby port, and each port of the local switch reads the configuration information and converts the configuration information into the main port or the standby port according to the indication of the configuration information. Generally, the active port is preferentially set as a root node to determine a working link.
Step S20, detecting whether the working link has a fault;
and after the working link is determined, detecting whether the working link fails in real time.
Further, step S20 further includes:
b, judging whether the working link fails according to whether the main port of the local switch receives a BPDU message sent by an upstream switch;
under the condition that the link corresponding to each port of the local switch can work normally, the local switch receives BPDU messages sent by an upstream switch at regular intervals, and when a certain port of the local switch cannot receive the BPDU messages sent by the upstream switch, the link corresponding to the port is in fault. And if the main port is set as the root node, the link corresponding to the main port is the working link. And judging whether the working link fails according to whether the main port of the local switch receives the BPDU message sent by the upstream switch.
Step c, if the main port does not receive the BPDU message sent by the upstream switch, the working link is judged to have a fault;
and d, if the main port receives the BPDU message sent by the upstream switch, judging that the working link does not have a fault.
When a main port of a local switch does not receive a BPDU message sent by an upstream switch, a working link corresponding to the main port fails; when the active port of the local switch can receive the BPDU message sent by the upstream switch, the working link corresponding to the active port can work normally. Referring to fig. 4, when the active port C2 of the local switch C does not receive the BPDU packet sent by the upstream switch B, the working link B2-C2 corresponding to the active port C2 fails; when the active port C2 of the local switch C receives the BPDU packet sent by the upstream switch B, the working links B2-C2 corresponding to the active port C2 operate normally.
Step S30, if yes, abandoning the active port, and determining the root node of the local switch according to a preset protocol to switch the standby link to the working link.
When the working link fails, the working link needs to be abandoned, and the standby link is started. The step of abandoning the failed working link is to abandon the main port first, and at this time, the local switch does not have a root node. The preset Protocol generally refers to an RSTP Protocol (Rapid Spanning Tree Protocol), according to the RSTP Protocol, a port in the local switch, which can receive a BPDU packet sent from the root switch, is determined as a root node, the root node is a standby port determined according to the configuration information, and after the root node is determined, a link corresponding to the root node and a link corresponding to the standby port are the same link, so that the standby link is switched to a working link. Referring to fig. 5, when working link B2-C2 fails, the root node identity of active port C2 is abandoned, and according to a preset protocol, port C1 is a standby port set according to configuration information, and can receive a BPDU message sent from root switch a, and port C1 is used as a root node, so as to switch standby link a1-C1 to a working link.
In this embodiment, a main port of a local switch is set as a root node, a link corresponding to the root node is determined as a working link, whether the working link fails or not is detected in real time, if the working link fails, the main port is discarded, the root node of the local switch is determined according to a preset protocol, so as to switch a standby link into the working link, so that a link which is preferentially used is subjectively selected according to the actual condition of the operation of the links between the switches, and the standby link is switched into the working link by replacing the root node, thereby ensuring the normal transmission of data between the switches.
Further, a second embodiment of the working link switching method of the present invention is proposed. The difference between the second embodiment of the working link switching method and the first embodiment of the working link switching method is that the step of setting the active port of the local switch as a root node and determining the link corresponding to the root node as the working link includes:
step e, setting a main port of a local switch as a root node, and determining a port with the minimum path overhead value in an upstream switch of the local switch as the root node of the upstream switch;
after the primary port of the local switch is set as the root node, the root node of the upstream switch of the local switch is set, and generally, the port with the smallest path overhead value in the upstream switch is set as the root node, so that the transmission cost of data is the smallest when the data is transmitted between the switches. Referring to fig. 4, if the path cost value of port B1 of upstream switch B of local switch C is less than that of port B2, port B2 is set as the root node.
And f, determining the port of the non-root node of the upstream switch as a designated port, and determining the link between the designated port and the root node of the local switch as the working link.
Ports other than the upstream switch root node are non-root nodes. Referring to fig. 4, a non-root node B2 of an upstream switch is set as a designated port and connected with a root node C2 of a local switch to form working links B2-C2.
In this embodiment, the primary port of the local switch is set as a root port, the port with the smallest path overhead value in the upstream switch of the local switch is determined as a root node of the upstream switch, the non-root node of the upstream switch is determined as an assigned port, and the link between the assigned port and the root node of the local switch is determined as a working link.
Further, a third embodiment of the working link switching method of the present invention is proposed. The third embodiment of the working link switching method is different from the second and first embodiments of the working link switching method in that, after the step of, if yes, abandoning the active port, determining the root node of the local switch according to a preset protocol, so as to switch a standby link to the working link, the method further includes:
step g, judging whether the fault is eliminated according to whether the main port of the local switch receives a BPDU message sent by the upstream switch;
and h, if the fault is eliminated, setting the main port as the root node again, and determining a link corresponding to the root node as a working link.
And after the standby link is switched into the working link, detecting whether the link fault corresponding to the main port of the local switch is eliminated or not in real time. When the main port of the local switch receives the BPDU message sent by the upstream switch, which indicates that the link fault corresponding to the main port is eliminated, the standby port is abandoned, the main port is set as a root node, the link corresponding to the main port is determined as a working link, and the switching of the working link is completed again.
In this embodiment, whether a failure is eliminated is determined according to whether a primary port of a local switch receives a BPDU message sent from an upstream switch, and if the failure is eliminated, the primary port is set as a root node again, a link corresponding to the primary port is determined as a working link, and when the link corresponding to the primary port operates normally, the link corresponding to the primary port is preferentially determined as the working link, so that subjective selection of the working link is achieved.
In addition, an embodiment of the present invention further provides an operating link switching apparatus, where the operating link switching apparatus includes:
the setting module is used for setting a main port of the local switch as a root node;
a determining module, configured to determine a link corresponding to the root node as a working link;
the detection module is used for detecting whether the working link fails or not;
the abandoning module is used for abandoning the main port if the main port is the main port;
the determining module is further configured to determine the root node of the local switch according to a preset protocol, so as to switch a standby link to the working link.
Further, the working link switching device further includes:
the acquisition module is used for acquiring configuration information;
the setting module is further configured to set the active port of the local switch according to the configuration information.
The setting module is also used for setting a main port of the local switch as a root node;
the determining module is further configured to determine, as a root node of an upstream switch of the local switch, a port with a smallest path overhead value in the upstream switch; and determining the port of the upstream switch, which is not the root node, as a designated port, and determining the link between the designated port and the root node of the local switch as the working link.
Further, the detection module further comprises:
a judging unit, configured to judge whether the working link fails according to whether the master port of the local switch receives a BPDU packet sent by a root switch; if the main port does not receive the BPDU message sent by the upstream switch, judging that the working link has a fault; and if the main port receives a BPDU message sent by the upstream switch, judging that the working link does not have a fault.
Further, the determining unit is further configured to determine whether the failure is eliminated according to whether the active port of the local switch receives a BPDU packet sent by the upstream switch;
the setting module is further configured to, if the failure is eliminated, set the active port as the root node again;
the determining module is further configured to determine a link corresponding to the root node as a working link.
The embodiment of the working link switching device of the present invention is basically the same as that of the working link switching method, and is not described herein again.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, where an operating link switching program is stored on the computer-readable storage medium, and when executed by a processor, the operating link switching program implements the steps of the operating link switching method described above.
It should be noted that the computer readable storage medium may be provided in the working link switching apparatus.
The specific implementation of the computer-readable storage medium of the present invention is substantially the same as the embodiments of the working link switching method described above, and is not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A method for working link switching, the method comprising:
setting a main port of a local switch as a root node, and determining a link corresponding to the root node as a working link;
detecting whether the working link fails or not;
and if so, abandoning the main port, and determining the root node of the local switch according to a preset protocol so as to switch the standby link into the working link.
2. The method for switching working links according to claim 1, wherein before the step of setting the active port of the local switch as a root node and determining the link corresponding to the root node as the working link, the method further comprises:
and acquiring configuration information, and setting the main port of the local switch according to the configuration information.
3. The method for switching the working link according to claim 1, wherein the step of setting the active port of the local switch as a root node and determining the link corresponding to the root node as the working link comprises:
setting a main port of a local switch as a root node, and determining a port with the minimum path overhead value in an upstream switch of the local switch as the root node of the upstream switch;
and determining the port of the upstream switch, which is not the root node, as a designated port, and determining the link between the designated port and the root node of the local switch as the working link.
4. The working link switching method according to claim 3, wherein the step of detecting whether the working link is failed comprises:
judging whether the working link fails or not according to whether the main port of the local switch receives a BPDU message sent by a root switch or not;
if the main port does not receive the BPDU message sent by the upstream switch, judging that the working link has a fault;
and if the main port receives a BPDU message sent by the upstream switch, judging that the working link does not have a fault.
5. The method for switching the working link according to claim 4, wherein if so, after the step of abandoning the active port and determining the root node of the local switch according to a predetermined protocol to switch a standby link to the working link, the method further comprises:
judging whether the fault is eliminated according to whether the main port of the local switch receives a BPDU message sent by the upstream switch;
if the fault is eliminated, the main port is set as the root node again, and the link corresponding to the root node is determined as a working link.
6. An operating link switching apparatus, characterized in that the operating link switching apparatus comprises:
the setting module is used for setting a main port of the local switch as a root node;
a determining module, configured to determine a link corresponding to the root node as a working link;
the detection module is used for detecting whether the working link fails or not;
the abandoning module is used for abandoning the main port if the main port is the main port;
the determining module is further configured to determine the root node of the local switch according to a preset protocol, so as to switch the standby link to the working link.
7. An operating link switching device comprising a memory, a processor and an operating link switching program stored on the memory and executable on the processor, the operating link switching program when executed by the processor implementing the steps of the operating link switching method according to any one of claims 1 to 5.
8. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon an operating link switching program which, when executed by a processor, implements the steps of the operating link switching method according to any one of claims 1 to 5.
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| CN202010428868.7A CN111756660A (en) | 2020-05-18 | 2020-05-18 | Working link switching method, device, equipment and computer readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6330229B1 (en) * | 1998-11-09 | 2001-12-11 | 3Com Corporation | Spanning tree with rapid forwarding database updates |
| CN101001165A (en) * | 2006-01-11 | 2007-07-18 | 大唐移动通信设备有限公司 | Network failure recovery method with redundancy port |
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2020
- 2020-05-18 CN CN202010428868.7A patent/CN111756660A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6330229B1 (en) * | 1998-11-09 | 2001-12-11 | 3Com Corporation | Spanning tree with rapid forwarding database updates |
| CN101001165A (en) * | 2006-01-11 | 2007-07-18 | 大唐移动通信设备有限公司 | Network failure recovery method with redundancy port |
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Application publication date: 20201009 |