CN110719205B - Access switch, online recovery method, system and computer storage medium - Google Patents
Access switch, online recovery method, system and computer storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/084—Configuration by using pre-existing information, e.g. using templates or copying from other elements
- H04L41/0846—Configuration by using pre-existing information, e.g. using templates or copying from other elements based on copy from other elements
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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
- H04L41/02—Standardisation; Integration
- H04L41/0246—Exchanging or transporting network management information using the Internet; Embedding network management web servers in network elements; Web-services-based protocols
- H04L41/0253—Exchanging or transporting network management information using the Internet; Embedding network management web servers in network elements; Web-services-based protocols using browsers or web-pages for accessing management information
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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
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
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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
- H04L41/08—Configuration management of networks or network elements
- H04L41/0893—Assignment of logical groups to network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/54—Presence management, e.g. monitoring or registration for receipt of user log-on information, or the connection status of the users
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The application discloses an access switch, an online recovery method, a system and a computer storage medium, which are applied to the access switch, wherein the method comprises the following steps: entering an abnormal configuration state after configuration is abnormal according to target configuration data, wherein the target configuration data are data sent by an SDN controller; obtaining backup configuration data; reconfiguring according to the backup configuration data; judging whether communication connection is reestablished with the SDN controller, if so, exiting the abnormal configuration state; wherein, the access switch only supports the configuration recovery function after entering the abnormal configuration state. The access switch, the online recovery method and system and the computer readable storage medium provided by the application avoid the situation that the access switch has functional problems due to external error setting, and enhance the capability of resisting unknown risks when the access switch is offline; and the access switch can be on-line again based on the backup configuration data, so that the risk resistance of the access switch is enhanced.
Description
Technical Field
The present application relates to the field of computer technologies, and in particular, to an access switch, an online recovery method, an online recovery system, and a computer storage medium.
Background
Currently, as computers are developed and data are expanded, the amount of data flowing in a network is increasing, and in order to realize large-scale transmission of the amount in the network, a network structure is available in which various communication devices are connected through a switch. As the network architecture becomes more complex, multiple switches may be required to connect communication devices at different locations, and fig. 1 is a schematic diagram of a switch network architecture. In fig. 1, switches in a network are divided into an access switch, an aggregation switch, a core switch, an egress switch, and the like according to installation positions and implementation functions of the switches, where the access switch is also a switch directly connected to a communication device of a user application, the aggregation switch is also a switch connected to a plurality of access devices, the core switch is also a switch connected to a plurality of aggregation switches, and the egress switch is also a switch connected to the core switch and implementing interaction with external data; in an application process of a switch, in order to implement management functions such as configuration of the switch, an existing switch management method manages all switches in a Network structure by using a controller, for example, by using an SDN (Software Defined Network) controller.
However, in the process of managing all the switches by means of the SDN controller, a situation may occur that the SDN controller configures the access switch incorrectly, which results in that the access switch cannot be brought online, so that the risk resistance of the access switch is poor.
In summary, how to improve the anti-risk capability of the access switch is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The application aims to provide an access switch online recovery method which can solve the technical problem of how to improve the risk resistance of the access switch to a certain extent. The application also provides an access switch, an online recovery system and a computer readable storage medium.
In order to achieve the above object, the present application provides an access switch online recovery method, which is applied to an access switch, and includes:
entering an abnormal configuration state after configuration is abnormal according to target configuration data, wherein the target configuration data are data sent by an SDN controller;
obtaining backup configuration data;
reconfiguring according to the backup configuration data;
judging whether communication connection is reestablished with the SDN controller, if so, exiting the abnormal configuration state;
and after the access switch enters the abnormal configuration state, only supporting the configuration recovery function.
Preferably, the obtaining backup configuration data includes:
determining an upper layer switch supporting a first communication mode with the access switch in a switch network where the access switch is located;
receiving the backup configuration data transmitted by the upper-layer switch;
wherein the first communication mode is different from a communication mode between different switches in the switch network.
Preferably, the first communication means includes a link layer discovery protocol.
Preferably, the obtaining backup configuration data includes:
judging whether a second communication mode exists between the SDN controller and the SDN controller or not;
if the second communication mode exists between the SDN controller and the SDN controller, the backup configuration data is obtained from the SDN controller through the second communication mode;
wherein the second communication mode is different from a communication mode applied when the target configuration data is transmitted between the access switch and the SDN controller.
Preferably, the obtaining the backup configuration data from the SDN controller through the second communication method includes:
determining a proxy switch which is connected with the proxy switch and supports the second communication mode;
establishing a second communication link with the SDN controller through the proxy switch and the second communication mode;
obtaining the backup configuration data from the SDN controller through the second communication link.
Preferably, the type of the second communication mode includes a vlan communication mode in a preset band.
Preferably, the obtaining backup configuration data includes:
and opening the self configuration function, and acquiring the backup configuration data through a preset configuration channel.
Preferably, the obtaining the backup configuration data through a preset configuration channel includes:
acquiring the backup configuration data through the preset configuration channel, wherein the backup configuration data is data obtained after being changed on the basis of the target configuration data;
and recording change configuration data which is different from the target configuration data in the backup configuration data.
Preferably, after exiting the abnormal configuration state, the method further includes:
re-entering the abnormal configuration state;
judging whether an instruction for applying the configuration data is received or not;
if the command for changing the configuration data is received, exiting the abnormal configuration state;
if the instruction for changing the configuration data is not received, judging whether the replacement configuration data sent by the SDN controller is received;
and if the replacement configuration data is received, reconfiguring according to the replacement configuration data, and exiting the abnormal configuration state after the configuration is completed.
Preferably, the types of the preset configuration channel include: web pages, upload ports.
Preferably, the obtaining backup configuration data includes:
and acquiring the backup configuration data of the self backup.
In order to achieve the above object, the present application further provides an access switch online recovery system, which is applied to an access switch, and includes:
the system comprises a first setting module, a second setting module and a third setting module, wherein the first setting module is used for entering an abnormal configuration state after configuration exception is carried out according to target configuration data, and the target configuration data are data sent by an SDN controller;
the first acquisition module is used for acquiring backup configuration data;
the first configuration module is used for carrying out reconfiguration according to the backup configuration data;
the first judging module is used for judging whether communication connection is reestablished with the SDN controller, and if so, exiting the abnormal configuration state;
and after the access switch enters the abnormal configuration state, only supporting the configuration recovery function.
To achieve the above object, the present application further provides an access switch, comprising:
a memory for storing a computer program;
a processor, configured to implement the steps of the method for recovering an access switch online as described above when executing the computer program.
In order to achieve the above object, the present application further provides a computer-readable storage medium applied to an access switch, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the steps of the method for recovering an access switch online as described above.
The method for recovering the online of the access switch is applied to the access switch, and the access switch enters an abnormal configuration state after being configured abnormally according to target configuration data, wherein the target configuration data are data sent by an SDN controller; obtaining backup configuration data; reconfiguring according to the backup configuration data; judging whether communication connection is reestablished with the SDN controller, if so, exiting the abnormal configuration state; wherein, the access switch only supports the configuration recovery function after entering the abnormal configuration state. According to the access switch online recovery method, the access switch can automatically enter an abnormal configuration state after being configured abnormally according to target configuration data sent by an SDN controller, and the access switch only supports the configuration recovery function in the abnormal configuration state, so that the outside cannot perform other function settings on the access switch, the invalid setting of the outside on the access switch is avoided, the condition that the access switch has function problems due to the wrong setting of the outside is avoided, and the capacity of resisting unknown risks when the access switch is offline is enhanced; and after the access switch enters the abnormal configuration state, the backup configuration data can be obtained, and the access switch is reconfigured according to the backup configuration data, so that the access switch can be on-line again based on the backup configuration data, the possibility of the access switch being on-line again is improved, and the risk resistance of the access switch is further enhanced. The access switch, the online recovery system and the computer readable storage medium provided by the application also solve the corresponding technical problems.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only the embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of a switch network architecture;
fig. 2 is a flowchart of an access switch online recovery method according to an embodiment of the present application;
fig. 3 is a flowchart of the access switch acquiring backup configuration data through LLDP protocol;
fig. 4 is a flowchart of the access switch acquiring backup configuration data through a second communication manner;
FIG. 5 is a flow chart of configuration of a thin switch in the outside world;
fig. 6 is a schematic structural diagram of an online recovery system of an access switch according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of an access switch according to an embodiment of the present application;
fig. 8 is another schematic structural diagram of an access switch according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
Referring to fig. 2, fig. 2 is a flowchart of an access switch online recovery method according to an embodiment of the present disclosure.
The method for recovering the online of the access switch provided by the embodiment of the application is applied to the access switch and comprises the following steps:
step S101: and entering an abnormal configuration state after the configuration is abnormal according to the target configuration data, wherein the target configuration data is data sent by the SDN controller.
In practical application, when the SDN controller is responsible for configuration of all switches in a switch Network, the SDN controller may issue target configuration data to an access switch, and the access switch may perform configuration according to the target configuration data sent by the SDN controller, however, if the target configuration data issued by the SDN controller is abnormal, the access switch may be abnormal, for example, an uplink between the access switch and the SDN controller is not connected, an uplink vlan (Virtual Local Area Network) between the access switch and the SDN controller is not connected, an access switch IP or a routing error cannot communicate with the SDN controller, and the like, at this time, the access switch may enter an abnormal configuration state, and in the abnormal configuration state, the access switch only supports a configuration recovery function, so the access switch may not respond to other transmitted functional instructions, such as a task distribution instruction, and the like, and thus, it may be avoided that the access switch is ineffectively set by the outside, and it may be avoided that the access switch itself cannot correctly respond to external functional instructions, such as a task distribution instruction, and further risk of the switch may be increased; in addition, under the abnormal configuration state, the access switch only supports the configuration recovery function, so that the access switch can be concentrated on the configuration recovery, and the probability and the efficiency of the access switch on-line recovery can be improved.
It should be noted that the data type of the target configuration data may be determined according to actual needs, for example, the target configuration data may be routing configuration data, vlan configuration data, ACI configuration data, or the like.
Step S102: and obtaining backup configuration data.
In practical application, because the target configuration data issued by the SDN controller may cause the configuration of the access switch to be abnormal, the access switch needs to additionally acquire backup configuration data different from the target configuration data, so as to reconfigure the access switch by using the backup configuration data and restore the access switch to be on-line as soon as possible. The manner in which the access switch acquires the backup configuration data may be determined flexibly according to actual needs, which is not specifically limited herein.
Step S103: and carrying out reconfiguration according to the backup configuration data.
Step S104: judging whether to reestablish communication connection with the SDN controller, if so, executing the step S105: and exiting the abnormal configuration state, wherein the access switch only supports the configuration recovery function after entering the abnormal configuration state.
In practical application, after the access switch acquires the backup configuration data, the access switch can be reconfigured according to the backup configuration data, whether the communication connection is reestablished with the SDN controller is judged, if yes, the access switch exits from an abnormal configuration state, and if not, the access switch can return to the step of judging whether the communication connection is reestablished with the SDN controller, and the like.
In a specific application scenario, since the time is required in the process of reconfiguring by the access switch according to the backup configuration data, the access switch may determine whether to reestablish the communication connection with the SDN controller after executing the preset time duration of reconfiguring according to the backup configuration data.
The method for recovering the online of the access switch is applied to the access switch, and the access switch enters an abnormal configuration state after being configured abnormally according to target configuration data, wherein the target configuration data are data sent by an SDN controller; obtaining backup configuration data; reconfiguring according to the backup configuration data; judging whether communication connection is reestablished with the SDN controller, if so, exiting the abnormal configuration state; wherein, the access switch only supports the configuration recovery function after entering the abnormal configuration state. According to the access switch online recovery method, the access switch can automatically enter an abnormal configuration state after being configured abnormally according to target configuration data sent by an SDN controller, and the access switch only supports a configuration recovery function in the abnormal configuration state, so that the outside cannot perform other function settings on the access switch, invalid settings of the outside on the access switch are avoided, the condition that the access switch has function problems due to external wrong settings is avoided, and the capacity of resisting unknown risks when the access switch is offline is enhanced; and after the access switch enters the abnormal configuration state, the backup configuration data can be obtained, and the access switch is reconfigured according to the backup configuration data, so that the access switch can be on-line again based on the backup configuration data, the possibility of the access switch being on-line again is improved, and the risk resistance of the access switch is further enhanced.
The method for recovering the access switch online is applied to an access switch, and after the access switch is abnormally configured, the access switch cannot communicate with an SDN controller, an upper layer switch supporting other communication modes with the access switch may exist in a switch network, and the upper layer switch can normally communicate with the SDN controller, at this time, the access switch can acquire backup configuration data by means of the upper layer switch, and when the access switch acquires the backup configuration data, the upper layer switch supporting a first communication mode with the access switch can be determined in the switch network where the access switch is located; receiving backup configuration data transmitted by an upper-layer switch; the first communication mode is different from the communication mode among different switches in the switch network.
It should be noted that the first communication mode is different from a communication mode between different switches in the switch network, which means that the first communication mode is a communication mode dedicated to the access switch and the upper layer switch. Taking an upper-layer switch and an access switch belonging to the same manufacturer as an example, if the switches of the manufacturer may communicate with each other in a specific manner, the access switch may use the switch belonging to the same manufacturer as the upper-layer switch, and obtain backup configuration data and the like by using the upper-layer switch in a specific manner set by the manufacturer.
In a specific application scenario, the backup configuration data transmitted by the upper layer switch to the access switch may be configuration data that is acquired by the upper layer switch from the SDN controller again, in this process, the upper layer switch may need to send identification information and configuration abnormal conditions of the access switch to the SDN controller, so that the SDN controller re-issues the configuration data for the access switch according to the identification information and configuration abnormal conditions of the access switch, and the configuration data issued by the SDN controller needs to be transmitted to the access switch through the upper layer switch; in addition, the backup configuration data transmitted by the upper layer switch to the access switch may also be configuration data stored by the upper layer switch itself, and in this process, the upper layer switch may need to determine whether the configuration data of itself is applicable to the access switch, for example, the upper layer switch verifies whether a performance parameter of itself is consistent with the access switch, specifically, the upper layer switch may determine whether a difference between the performance parameter of itself and the performance parameter of the access switch is within a preset range, if so, determine that the performance parameter of itself is consistent with the access switch, the configuration data of itself is applicable to the access switch, otherwise, determine that the performance parameter of itself is not consistent with the access switch, and the configuration data of itself is not applicable to the access switch.
In a specific application scenario, the first communication mode may be a link layer discovery protocol. A Link Layer Discovery Protocol (LLDP) related in the present application is a Data Link Layer Protocol, and a network device may notify the state of another device by sending an LLDPDU (Link Layer Discovery Protocol Data Unit) in a local network. Is a protocol that enables devices in a network to discover each other and advertise state and mutual information. For convenience of understanding, taking the access switch including the access switch configuration module and the access switch LLDP module, and the upper layer switch including the upper layer switch LLDP module and the upper layer switch configuration module as an example, with reference to fig. 3, a process of the access switch acquiring the backup configuration data through the LLDP protocol is described:
after detecting the access switch offline, the access switch LLDP module triggers an agent mode, and sends the offline information of the access switch to an upper-layer switch LLDP module through an LLDP protocol;
the upper layer switch LLDP module receives the off-line information of the access switch and informs the upper layer switch configuration module to acquire backup configuration data;
the upper-layer switch configuration module receives the notification of obtaining the backup configuration data and sends a command of requesting the configuration data to the SDN controller;
the SDN controller marks the access switch as an abnormal configuration state and issues backup configuration data to an upper-layer switch configuration module;
the upper-layer switch configuration module transmits the backup configuration data to the access switch configuration module;
and the access switch configuration module reconfigures according to the backup configuration module.
The method for recovering the access switch online is applied to an access switch, when the access switch is abnormally configured and cannot communicate with an SDN controller in an existing communication mode, if the access switch has other communication modes with the SDN controller, the access switch can acquire backup configuration data from the SDN controller in the other communication modes, when the access switch acquires the backup configuration data, whether a second communication mode exists between the access switch and the SDN controller can be judged, and if the second communication mode exists between the access switch and the SDN controller, the backup configuration data are acquired from the SDN controller in the second communication mode, wherein the second communication mode is different from the communication mode applied when target configuration data are transmitted between the access switch and the SDN controller.
In practical applications, in order to facilitate establishment of the second communication mode between the access switch and the SDN controller, the access switch may establish a communication link with the SDN controller by using an existing proxy switch in the switch network, the proxy switch being connected to the SDN controller and supporting the second communication mode, and the process of obtaining, by the access switch, the backup configuration data from the SDN controller through the second communication mode may specifically be: determining a self-connected proxy switch supporting a second communication mode; establishing a second communication link with the SDN controller through the proxy switch and a second communication mode; backup configuration data is obtained from the SDN controller over a second communication link.
In a specific application scenario, the type of the second communication mode may include a vlan communication mode in a preset waveband. Taking a process that the SDN controller transmits the target configuration data to the access switch through the vlan5 as an example, if the access switch and the SDN controller can also communicate through the vlan10, and the access switch is connected with a proxy switch that also supports vlan10 communication, after configuration of the access switch is abnormal, a second communication link for performing vlan10 communication with the SDN controller can be established through the proxy switch, so that the access switch can obtain the backup configuration data from the SDN controller through the second communication link, that is, through the vlan10 communication mode.
For ease of understanding, the process of the access switch obtaining the backup configuration data through the second communication mode is now described with reference to fig. 4:
after the access switch is offline, sending information requesting to establish second communication connection with the SDN controller to a proxy switch;
the proxy switch sends the offline information of the access switch to the SDN controller, negotiates the establishment information of a second communication link with the SDN controller based on the information of the access switch, and sends the corresponding establishment information to the access switch after the negotiation is successful;
the access switch establishes a second communication link with the SDN controller based on the establishment information;
the SDN controller marks the access switch as an abnormal configuration state and sends corresponding backup configuration data to the access switch through a second communication link;
and the access switch uses the received backup configuration data to carry out reconfiguration and disconnects the second communication link after the configuration is successful.
It should be noted that in a specific application scenario, the SDN controller may modify the target configuration data to generate backup configuration data that may enable the access switch to be configured successfully; the SDN controller may also directly use configuration data that has been successfully configured by the access switch last time as backup configuration data, and the like.
The method for recovering the access switch from the online is applied to the access switch, and the access switch can be recovered from the online by the outside, so that the access switch acquires backup configuration data, and specifically, the method includes: and opening the self configuration function, and acquiring backup configuration data through a preset configuration channel.
In a specific application scenario, the access switch may display the target configuration data to the outside, so that the outside may directly change the target configuration data to obtain the backup configuration data, and then the access switch acquires the backup configuration data through a preset configuration channel, which may specifically be: acquiring backup configuration data through a preset configuration channel, wherein the backup configuration data are data obtained after being changed on the basis of target configuration data; and recording changed configuration data different from the target configuration data in the backup configuration data. It should be noted that since the access switch records the change configuration data, subsequent outsiders may query the change configuration data recorded by the access switch to determine the operational state of the access switch, or subsequently decide whether to apply the change configuration data, etc.
In a specific application scenario, backup configuration data obtained by an access switch from the outside is data set by the outside for restoring an online connection of the access switch, whether the SDN controller supports the backup configuration data, whether the backup configuration data is applicable to a switch network, and the like is uncertain, and in order to determine validity of the backup configuration data, the access switch can enter an abnormal configuration state again after exiting the abnormal configuration state; judging whether an instruction for changing configuration data by an application is received; if an instruction for changing the configuration data by the application is received, exiting the abnormal configuration state; if an instruction for changing the configuration data by the application is not received, judging whether the replacement configuration data sent by the SDN controller is received; and if the replacement configuration data is received, reconfiguring according to the replacement configuration data, and exiting the abnormal configuration state after the configuration is completed. Specifically, the instruction for changing the configuration data may be issued by the SDN controller, may also be transmitted through an interface of the access switch by the outside, and the like, and the application is not specifically limited thereto.
In a specific application scenario, in order to facilitate external transmission of backup configuration data to the access switch, the type of the preset configuration channel applied by the access switch may include: web pages, upload ports, etc.
It should be noted that the method of on-line restoration of an access switch by the outside world may be applied to a thin switch in a network of switches, i.e. a switch that is managed and configured by the same SDN controller and that has to be used with the SDN controller. For convenience of understanding, the process of configuring the thin switch under the outside world is described by taking the access switch as the thin switch and taking the thin switch as an example, where the thin switch includes a thin switch tunnel module, a thin switch configuration module, and a web server, with reference to fig. 5:
after detecting that the thin switch is offline, the thin switch tunnel module triggers to enter an escape mode and informs a web server to release the configuration permission;
the web server releases the configuration authority, receives backup spouse data transmitted by the outside in a web mode, and transmits the backup configuration data to the thin switch configuration module;
the thin switch configuration module carries out online recovery according to the backup configuration module and records the change configuration data of which the backup configuration data is different from the target configuration data;
after detecting that the thin switch is on-line again, the tunnel module of the thin switch exits from the escape mode and controls the web server to withdraw the configuration authority;
the thin switch configuration module uploads configuration data to the SDN controller;
the SDN controller marks the thin switch as an abnormal configuration state and determines whether to change configuration data or not, if so, the SDN controller controls the thin switch to exit the abnormal configuration state, and if not, replacement configuration data are sent to a thin switch configuration module;
and after the thin switch configuration module receives the replacement configuration data, applying the replacement configuration data to be on-line again.
The method for recovering the access switch online provided by the embodiment of the application is applied to an access switch, and the access switch can automatically store target configuration data successfully configured by itself as backup configuration data in a process of configuring according to the target configuration data sent by an SDN controller, so that a process of acquiring the backup configuration data by the access switch specifically can be as follows: and obtaining backup configuration data of self backup.
Referring to fig. 6, fig. 6 is a schematic structural diagram of an online restoration system of an access switch according to an embodiment of the present disclosure.
The online recovery system for the access switch, provided by the embodiment of the application, is applied to the access switch, and can include:
the first setting module 101 is configured to enter an abnormal configuration state after an abnormality is configured according to target configuration data, where the target configuration data is data sent by an SDN controller;
a first obtaining module 102, configured to obtain backup configuration data;
a first configuration module 103, configured to reconfigure according to the backup configuration data;
the first judging module 104 is configured to judge whether to reestablish communication connection with the SDN controller, and if yes, exit from the abnormal configuration state;
after the access switch enters an abnormal configuration state, only the configuration recovery function is supported.
The embodiment of the application provides a recovery system that gets on line of access switch is applied to the access switch, and first acquisition module can include:
the first determining submodule is used for determining an upper-layer switch supporting a first communication mode with the access switch in a switch network where the access switch is located;
the first receiving submodule is used for receiving the backup configuration data transmitted by the upper-layer switch;
the first communication mode is different from the communication mode among different switches in the switch network.
The online recovery system for the access switch, provided by the embodiment of the application, is applied to the access switch, and the first communication mode may include a link layer discovery protocol.
The embodiment of the application provides an access switch online recovery system, is applied to the access switch, and a first acquisition module can include:
the first judgment sub-module is used for judging whether a second communication mode exists between the first judgment sub-module and the SDN controller or not; if a second communication mode exists between the SDN controller and the SDN controller, backup configuration data are obtained from the SDN controller through the second communication mode;
the second communication mode is different from a communication mode applied when the target configuration data is transmitted between the access switch and the SDN controller.
The embodiment of the application provides a line recovery system on access switch is applied to access switch, and first judgement submodule can include:
a first determining unit, configured to determine a proxy switch supporting a second communication method and connected to the first determining unit;
the first establishing unit is used for establishing a second communication link with the SDN controller through the proxy switch and a second communication mode;
a first obtaining unit, configured to obtain backup configuration data from the SDN controller through a second communication link.
The online recovery system of the access switch is applied to the access switch, and the type of the second communication mode can include a vlan communication mode under a preset waveband.
The embodiment of the application provides an access switch online recovery system, is applied to the access switch, and a first acquisition module can include:
and the first obtaining submodule is used for opening the self-configuration function and obtaining the backup configuration data through a preset configuration channel.
The embodiment of the application provides a recovery system on line of access switch is applied to the access switch, and first acquisition submodule can include:
the second acquisition unit is used for acquiring backup configuration data through a preset configuration channel, wherein the backup configuration data are data obtained by changing on the basis of the target configuration data;
and the first recording unit is used for recording the change configuration data which is different from the target configuration data in the backup configuration data.
The online recovery system for the access switch, provided by the embodiment of the application, is applied to the access switch, and can further include:
the first setting unit is used for re-entering the abnormal configuration state after the first judgment module exits the abnormal configuration state;
the first judging unit is used for judging whether an instruction for changing the configuration data by an application is received; if an instruction for changing the configuration data by the application is received, exiting the abnormal configuration state; if the instruction for changing the configuration data by the application is not received, judging whether the replacement configuration data sent by the SDN controller is received; and if the replacement configuration data is received, reconfiguring according to the replacement configuration data, and exiting the abnormal configuration state after the configuration is completed.
The embodiment of the application provides an access switch online recovery system, is applied to the access switch, and the type of presetting the configuration channel can include: web pages, upload ports.
The embodiment of the application provides a recovery system that gets on line of access switch is applied to the access switch, and first acquisition module can include:
and the third acquisition unit is used for acquiring backup configuration data of the backup of the third acquisition unit.
The application also provides an access switch and a computer readable storage medium, which both have the corresponding effects of the access switch online recovery method provided by the embodiment of the application. Referring to fig. 7, fig. 7 is a schematic structural diagram of an access switch according to an embodiment of the present application.
An access switch provided in an embodiment of the present application includes a memory 201 and a processor 202, where the memory 201 stores a computer program, and the processor 202 implements the following steps when executing the computer program:
entering an abnormal configuration state after configuration is abnormal according to target configuration data, wherein the target configuration data are data sent by an SDN controller;
obtaining backup configuration data;
reconfiguring according to the backup configuration data;
judging whether communication connection is reestablished with the SDN controller, if so, exiting the abnormal configuration state;
wherein, the access switch only supports the configuration recovery function after entering the abnormal configuration state.
The access switch provided by the embodiment of the application comprises a memory 201 and a processor 202, wherein a computer program is stored in the memory 201, and the processor 202 implements the following steps when executing the computer program: determining an upper-layer switch supporting a first communication mode between the upper-layer switch and an access switch in a switch network where the access switch is located; receiving backup configuration data transmitted by an upper-layer switch; the first communication mode is different from the communication mode among different switches in the switch network.
In an access switch provided in an embodiment of the present application, a first communication mode includes a link layer discovery protocol.
The access switch provided by the embodiment of the application comprises a memory 201 and a processor 202, wherein a computer program is stored in the memory 201, and the processor 202 implements the following steps when executing the computer program: judging whether a second communication mode exists between the SDN controller and the SDN controller or not; if a second communication mode exists between the SDN controller and the SDN controller, backup configuration data are obtained from the SDN controller through the second communication mode; the second communication mode is different from a communication mode applied when the target configuration data is transmitted between the access switch and the SDN controller.
An access switch provided in an embodiment of the present application includes a memory 201 and a processor 202, where the memory 201 stores a computer program, and the processor 202 implements the following steps when executing the computer program: determining a proxy switch which is connected with the proxy switch and supports the second communication mode; establishing a second communication link with the SDN controller through the proxy switch and a second communication mode; backup configuration data is obtained from the SDN controller over a second communication link.
In the access switch provided in the embodiment of the present application, the type of the second communication mode includes a vlan communication mode in a preset band.
An access switch provided in an embodiment of the present application includes a memory 201 and a processor 202, where the memory 201 stores a computer program, and the processor 202 implements the following steps when executing the computer program: and opening the self configuration function, and acquiring backup configuration data through a preset configuration channel.
An access switch provided in an embodiment of the present application includes a memory 201 and a processor 202, where the memory 201 stores a computer program, and the processor 202 implements the following steps when executing the computer program: acquiring backup configuration data through a preset configuration channel, wherein the backup configuration data are data obtained after being changed on the basis of target configuration data; and recording the change configuration data different from the target configuration data in the backup configuration data.
The access switch provided by the embodiment of the application comprises a memory 201 and a processor 202, wherein a computer program is stored in the memory 201, and the processor 202 implements the following steps when executing the computer program: after exiting the abnormal configuration state, re-entering the abnormal configuration state; judging whether an instruction for changing configuration data by an application is received; if an instruction for changing the configuration data by the application is received, exiting the abnormal configuration state; if the instruction for changing the configuration data by the application is not received, judging whether the replacement configuration data sent by the SDN controller is received; and if the replacement configuration data is received, reconfiguring according to the replacement configuration data, and exiting the abnormal configuration state after the configuration is completed.
In an access switch provided in an embodiment of the present application, the type of the preset configuration channel includes: web pages, upload ports.
The access switch provided by the embodiment of the application comprises a memory 201 and a processor 202, wherein a computer program is stored in the memory 201, and the processor 202 implements the following steps when executing the computer program: and obtaining backup configuration data of the backup of the user.
Referring to fig. 8, another access switch provided in the embodiment of the present application may further include: an input port 203 connected to the processor 202, for transmitting externally input commands to the processor 202; a display unit 204 connected to the processor 202, for displaying the processing result of the processor 202 to the outside; and the communication module 205 is connected with the processor 202 and is used for realizing the communication between the access switch and the outside world. The display unit 204 may be a display panel, a laser scanning display, or the like; the communication method adopted by the communication module 205 includes, but is not limited to, mobile high definition link technology (HML), universal Serial Bus (USB), high Definition Multimedia Interface (HDMI), and wireless connection: wireless fidelity technology (WiFi), bluetooth communication technology, bluetooth low energy communication technology, ieee802.11s based communication technology.
A computer-readable storage medium provided in an embodiment of the present application stores a computer program, and when executed by a processor, the computer program implements the following steps:
entering an abnormal configuration state after the configuration is abnormal according to target configuration data, wherein the target configuration data are data sent by an SDN controller;
obtaining backup configuration data;
reconfiguring according to the backup configuration data;
judging whether communication connection is reestablished with the SDN controller, if so, exiting the abnormal configuration state;
after the access switch enters an abnormal configuration state, only the configuration recovery function is supported.
A computer-readable storage medium is provided in an embodiment of the present application, in which a computer program is stored, and when the computer program is executed by a processor, the computer program implements the following steps: determining an upper-layer switch supporting a first communication mode between the upper-layer switch and an access switch in a switch network where the access switch is located; receiving backup configuration data transmitted by an upper-layer switch; the first communication mode is different from the communication mode among different switches in the switch network.
In a computer-readable storage medium provided in an embodiment of the present application, the first communication mode includes a link layer discovery protocol.
A computer-readable storage medium is provided in an embodiment of the present application, in which a computer program is stored, and when the computer program is executed by a processor, the computer program implements the following steps: judging whether a second communication mode exists between the SDN controller and the SDN controller; if a second communication mode exists between the SDN controller and the SDN controller, backup configuration data are obtained from the SDN controller through the second communication mode; the second communication mode is different from the communication mode applied when the target configuration data is transmitted between the access switch and the SDN controller.
A computer-readable storage medium provided in an embodiment of the present application stores a computer program, and when executed by a processor, the computer program implements the following steps: determining a self-connected proxy switch supporting a second communication mode; establishing a second communication link with the SDN controller through the proxy switch and a second communication mode; backup configuration data is obtained from the SDN controller over a second communication link.
In the computer-readable storage medium provided in the embodiment of the present application, the type of the second communication mode includes a vlan communication mode in a preset band.
A computer-readable storage medium is provided in an embodiment of the present application, in which a computer program is stored, and when the computer program is executed by a processor, the computer program implements the following steps: and opening the self configuration function, and acquiring backup configuration data through a preset configuration channel.
A computer-readable storage medium provided in an embodiment of the present application stores a computer program, and when executed by a processor, the computer program implements the following steps: acquiring backup configuration data through a preset configuration channel, wherein the backup configuration data are data obtained after being changed on the basis of target configuration data; and recording the change configuration data different from the target configuration data in the backup configuration data.
A computer-readable storage medium is provided in an embodiment of the present application, in which a computer program is stored, and when the computer program is executed by a processor, the computer program implements the following steps: after exiting the abnormal configuration state, re-entering the abnormal configuration state; judging whether an instruction for changing configuration data by an application is received; if an instruction for changing the configuration data by the application is received, exiting the abnormal configuration state; if an instruction for changing the configuration data by the application is not received, judging whether the replacement configuration data sent by the SDN controller is received; and if the replacement configuration data is received, reconfiguring according to the replacement configuration data, and exiting the abnormal configuration state after the configuration is completed.
In a computer-readable storage medium provided in an embodiment of the present application, a type of a preset configuration channel includes: web pages, upload ports.
A computer-readable storage medium provided in an embodiment of the present application stores a computer program, and when executed by a processor, the computer program implements the following steps: and obtaining backup configuration data of the backup of the user.
The computer-readable storage media to which this application relates include Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage media known in the art.
For a description of relevant parts in an access switch and an online recovery system, device, and computer readable storage medium provided in the embodiments of the present application, please refer to a detailed description of a corresponding part in an online recovery of an access switch provided in the embodiments of the present application, which is not described herein again. In addition, parts of the technical solutions provided in the embodiments of the present application that are consistent with implementation principles of corresponding technical solutions in the prior art are not described in detail, so as to avoid redundant description.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (13)
1. An access switch online recovery method is applied to an access switch, and comprises the following steps:
entering an abnormal configuration state after configuration is abnormal according to target configuration data, wherein the target configuration data are data sent by an SDN controller;
obtaining backup configuration data;
reconfiguring according to the backup configuration data;
judging whether communication connection is reestablished with the SDN controller, if so, exiting the abnormal configuration state;
after the access switch enters the abnormal configuration state, only a configuration recovery function is supported;
wherein the obtaining backup configuration data includes:
determining an upper-layer switch supporting a first communication mode between the access switch and the switch network where the access switch is located;
receiving the backup configuration data transmitted by the upper-layer switch;
wherein the first communication mode is different from a communication mode between different switches in the switch network.
2. The method of claim 1, wherein the first communication means comprises a link layer discovery protocol.
3. The method of claim 1, wherein obtaining backup configuration data comprises:
judging whether a second communication mode exists between the SDN controller and the SDN controller;
if the second communication mode exists between the SDN controller and the SDN controller, the backup configuration data is obtained from the SDN controller through the second communication mode;
wherein the second communication mode is different from a communication mode applied when the target configuration data is transmitted between the access switch and the SDN controller.
4. The method of claim 3, wherein the obtaining the backup configuration data from the SDN controller via the second communication means comprises:
determining a proxy switch which is connected with the proxy switch and supports the second communication mode;
establishing a second communication link with the SDN controller through the proxy switch and the second communication mode;
obtaining the backup configuration data from the SDN controller through the second communication link.
5. The method according to claim 3, wherein the type of the second communication mode comprises a vlan communication mode in a preset band.
6. The method of claim 1, wherein obtaining backup configuration data comprises:
and opening the self configuration function, and acquiring the backup configuration data through a preset configuration channel.
7. The method of claim 6, wherein the obtaining the backup configuration data through a preset configuration channel comprises:
acquiring the backup configuration data through the preset configuration channel, wherein the backup configuration data is data obtained after being changed on the basis of the target configuration data;
and recording change configuration data which is different from the target configuration data in the backup configuration data.
8. The method of claim 7, wherein after exiting the abnormal configuration state, further comprising:
re-entering the abnormal configuration state;
judging whether an instruction for applying the configuration data is received or not;
if the command for changing the configuration data is received, exiting the abnormal configuration state;
if the instruction for changing the configuration data is not received, judging whether the replacement configuration data sent by the SDN controller is received;
and if the replacement configuration data is received, reconfiguring according to the replacement configuration data, and exiting the abnormal configuration state after the configuration is completed.
9. The method of claim 6, wherein the type of the preset configuration channel comprises: web pages, upload ports.
10. The method of claim 1, wherein obtaining backup configuration data comprises:
and acquiring the backup configuration data of the self backup.
11. The utility model provides an access switch goes up line recovery system which characterized in that is applied to access switch, includes:
the system comprises a first setting module, a second setting module and a third setting module, wherein the first setting module is used for entering an abnormal configuration state after configuration exception is carried out according to target configuration data, and the target configuration data are data sent by an SDN controller;
the first acquisition module is used for acquiring backup configuration data;
the first configuration module is used for carrying out reconfiguration according to the backup configuration data;
the first judgment module is used for judging whether to reestablish communication connection with the SDN controller, and if so, exiting the abnormal configuration state;
after the access switch enters the abnormal configuration state, only a configuration recovery function is supported;
wherein the first obtaining module comprises:
the first determining submodule is used for determining an upper-layer switch supporting a first communication mode with the access switch in a switch network where the access switch is located;
the first receiving submodule is used for receiving the backup configuration data transmitted by the upper-layer switch;
wherein the first communication mode is different from a communication mode among different switches in the switch network.
12. An access switch, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the access switch online recovery method according to any one of claims 1 to 10 when executing said computer program.
13. A computer-readable storage medium, for an access switch, in which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method for restoration on an access switch according to any one of claims 1 to 10.
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