CN111786909B - Method for updating protocol state of VRRP interface, switch and storage medium - Google Patents
Method for updating protocol state of VRRP interface, switch and storage medium Download PDFInfo
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- CN111786909B CN111786909B CN202010425250.5A CN202010425250A CN111786909B CN 111786909 B CN111786909 B CN 111786909B CN 202010425250 A CN202010425250 A CN 202010425250A CN 111786909 B CN111786909 B CN 111786909B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/35—Switches specially adapted for specific applications
- H04L49/354—Switches specially adapted for specific applications for supporting virtual local area networks [VLAN]
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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
- H04L41/0816—Configuration setting characterised by the conditions triggering a change of settings the condition being an adaptation, e.g. in response to network events
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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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
- H04L45/16—Multipoint routing
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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
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
Abstract
The invention discloses a method for updating the protocol state of a VRRP interface, a switch and a storage medium. Monitoring the state of a VLAN interface, sending an event notification of the VLAN interface up when the VLAN interface up exists, checking whether the configuration of the related VLAN interface exists, and if so, adding a sub-interface for the VLAN interface; and when the subinterface up is in the up state, sending the subinterface up event notice, configuring a corresponding IP address for the subinterface, updating the subinterface state, sending a VRRP multicast message, and updating the protocol state of the VRRP interface. On the premise of not changing the independence of the existing modules, the state of the protocol of the VRRP interface can be accurately updated in real time and quickly switched.
Description
Technical Field
The present invention relates to the field of data communication technologies, and in particular, to a method, a switch, and a storage medium for updating a VRRP interface protocol state.
Background
A Virtual Router Redundancy Protocol (VRRP) is a routing Protocol used for solving the single point failure phenomenon of a static gateway configured in a local area network. It can dynamically assign responsibility of a virtual router to one of the VRRP routers on the local area network. The VRRP router that controls the virtual router IP addresses is called the master router, which is responsible for forwarding packets to these virtual IP addresses. This selection process provides a dynamic failover mechanism once the primary router is unavailable, which allows the IP address of the virtual router to act as the default first hop router for the end host. Is a backup protocol of LAN access equipment. All hosts in a local area network are provided with default gateways, so that messages sent by the hosts and having destination addresses which are not in the network segment are sent to the three-layer switch through the default gateways, and communication between the hosts and an external network is realized.
Because the VRRP uses the virtual MAC address, virtual network cards of different virtual MACs are needed for communication, and the existing switch design can only set one MAC, so that the update operation of the VRRP interface is extremely inconvenient.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method, a switch, and a storage medium for updating a VRRP interface, aiming at solving the problem of inconvenience in updating the VRRP interface in the prior art.
The technical scheme adopted by the invention for solving the technical problem is as follows:
in a first aspect, an embodiment of the present invention provides a method for updating a protocol state of a VRRP interface, where the method includes:
monitoring the state of a VLAN interface, sending an event notification of the VLAN interface up when the VLAN interface up exists, checking whether the configuration of the related VLAN interface exists, and if so, adding a sub-interface for the VLAN interface;
and when the subinterface up is in the up state, sending the subinterface up event notice, configuring a corresponding IP address for the subinterface, updating the subinterface state, sending a VRRP multicast message, and updating the protocol state of the VRRP interface.
The method for updating the protocol state of the VRRP interface comprises the following steps of monitoring the state of the VLAN interface, and when the VLAN interface up is used, before sending the VLAN interface up event notification, the method also comprises the following steps:
and initializing the VRRP according to the user VLAN and the VRID configuration.
The method for updating the protocol state of the VRRP interface comprises the step of naming the subinterface, wherein the named name comprises VLAN and/or VRID.
The method for updating the protocol state of the VRRP interface comprises the steps of monitoring the state of a VLAN interface, sending a VLAN interface up event notification when the VLAN interface up is used, checking whether the VLAN interface is configured, if not, giving up adding a sub-interface for the VLAN interface, and ending the program.
The method for updating the protocol state of the VRRP interface comprises the steps of monitoring the state of a VLAN interface, sending a VLAN interface up event notification when the VLAN interface up exists, checking whether the VLAN interface is configured, if not, reconfiguring the VLAN interface again, and ending the program.
The method for updating the protocol state of the VRRP interface comprises Initialize, Backup and Master.
The method for updating the protocol state of the VRRP interface comprises the steps of monitoring the state of a VLAN interface, sending an up event notice of the VLAN interface when the VLAN interface is up, sending the up event notice of the VLAN interface according to the priority of the VLAN interface when a plurality of VLAN interfaces are up simultaneously, checking whether the VLAN interfaces are configured or not, and respectively adding a sub-interface for the VLAN interface if the VLAN interfaces are configured.
The method for updating the protocol state of the VRRP interface comprises the steps of sending an up event notice of the VLAN interface according to the size sequence of the IP addresses of the VLAN interface when the priority is the same, checking whether the VLAN interface is configured, and if so, respectively adding a sub-interface for the VLAN interface.
In a second aspect, a switch comprising a processor and a memory, and one or more programs, wherein the one or more programs are stored in the memory, and configured for execution by the one or more processors comprises means for performing the method as described above.
In a third aspect, a storage medium, wherein instructions in the storage medium, when executed by a processor of an electronic device, enable the electronic device to perform the method as described above.
The invention has the beneficial effects that: the invention monitors the protocol state of the VLAN interface, when the VLAN interface is in an up state, the invention sends an up event notice of the VLAN interface and checks whether the configuration of the related VLAN interface exists, if so, the sub-interface of the VLAN interface is added; monitoring the sub-interface of the VLAN interface, when the sub-interface of the VLAN interface is in an up state, sending a sub-interface up event notification of the VLAN interface, configuring a corresponding IP address for the sub-interface, and updating the state of the sub-interface; and sending a VRRP multicast message and updating the state of the protocol of the VRRP interface. So that the protocol state of the VRRP interface can be updated in real time.
Drawings
Fig. 1 is a flowchart of a preferred embodiment of the method for updating the protocol state of the VRRP interface provided by the present invention.
Fig. 2 is a functional schematic diagram of a switch provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items. It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Since many switch designs in the prior art can only set one MAC address, and the VRRP running on the switch designs uses virtual MACs, virtual network cards virtualizing different MACs are required to communicate, which causes many troubles for updating the VRRP interface.
In order to solve the technical problem, in the embodiment of the present invention, by monitoring the state of the VLAN interface, when the VLAN interface is in an up state, the VLAN interface up event notification is sent; checking whether the configuration of the related VLAN interface exists or not, and if so, adding a sub-interface of the VLAN interface; monitoring the sub-interface of the VLAN interface, and sending a sub-interface up event notification of the VLAN interface when the sub-interface of the VLAN interface is in an up state; configuring a corresponding IP address for the subinterface and updating the status of the subinterface; and sending a VRRP multicast message and updating the protocol state of the VRRP interface. So that the protocol state of the VRRP interface can be updated in real time.
Various non-limiting embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Exemplary method
Referring to fig. 1, this embodiment provides a method for updating a protocol state of a VRRP interface, which is applied to a switch, and the method includes the following steps:
step S100, monitoring the state of a VLAN interface, when the VLAN interface up is used, sending an event notice of the VLAN interface up, checking whether the VLAN interface is configured, and if so, adding a sub-interface for the VLAN interface.
Specifically, the vlan (virtual Local Area network) is also called a virtual Local Area network, and refers to an end-to-end logic network that can span different network segments and different networks and is constructed by using network management software on the basis of an exchange Local Area network. A VLAN constitutes a logical subnet, i.e., a logical broadcast domain, which can cover multiple network devices, allowing network users at different geographical locations to join a logical subnet. The VLAN interface can be monitored in real time by adopting an interface monitoring mode, when the VLAN interface up is found, the monitored result is sent out by adopting an event notification mode, and the event notification mode is adopted, so that the mutual calling of all function modules is avoided, and the program operation is more stable and efficient.
When the configuration corresponding to the VLAN interface is found, a sub-interface (such as a macvlan sub-interface) is established for the VLAN interface and corresponds to the sub-interface. It is easy to understand that the configuration of the relevant VLAN is configured in advance, and the VRRP can be initialized in advance according to the user VLAN and the VRID configuration before step S100.
Further, the name of the subinterface established for the VLAN interface is to be related to the VLAN and the VRID, and the name of the subinterface may be in the form of macv. Other forms are of course possible, but meet the requirement of being readily discernible.
In an implementation manner of this embodiment, after the VLAN interface up is sent out in an event notification manner, and in the process of checking the configuration of the VLAN interface, when no configuration corresponding to the VLAN interface is found, it may be adopted to abandon adding a sub-interface to the VLAN interface, end the monitoring, and perform the next cycle of monitoring on the VLAN interface.
In an implementation manner of this embodiment, after the VLAN interface up is sent out in an event notification manner, and in the process of checking the configuration of the VLAN interface, if no configuration corresponding to the VLAN interface is found, a message for reconfiguring the VLAN interface is sent out, the VLAN interface is reconfigured again, and this monitoring is ended. The reconfigured VLAN may add a subinterface the next time the interface up.
In an implementation manner of this embodiment, when monitoring the VLAN interfaces, when multiple VLAN interfaces up appear in the same time, the VLAN interface up event notification may be sent according to the priority levels of the VLAN interfaces, which is easy to understand, and when checking the configuration related to the VLAN interfaces, the VLAN interface up event notification may be sent according to the order of the sent VLAN interface up event notifications.
Further, when the priority levels are the same, the VLAN interface up event notification may be sent according to the order of the sizes of the IP addresses configured by the VLAN interfaces.
Step S200, when the subinterface up, the subinterface up event notice is sent, the corresponding IP address is configured for the subinterface, the subinterface state is updated, a VRRP multicast message is sent, and the protocol state of the VRRP interface is updated.
Specifically, after adding a corresponding subinterface to the VLAN interface, the status of the subinterface is continuously monitored in real time, and when the subinterface is found to be in the up status, the subinterface up is sent out again in an event manner, and a corresponding IP is configured for the subinterface to implement communication, and meanwhile, the configuration of the VLAN and the VRID corresponding to the subinterface is updated, and the updated content includes the IP, the priority level, and the like.
In this embodiment, after the status of the sub-interface is updated, the VRRP multicast packet is sent, the protocol status of the VRRP protocol module is switched, and the real-time update of the VRRP interface is realized. The protocol states include an initial state, a Backup state, and a Master state (operating state). By adding the macvlan subinterface to the VLAN interface and then monitoring the macvlan subinterface, when the state of the macvlan subinterface changes, an update event is sent out, and the protocol state of the VRRP interface is updated according to the finer event, so that independent operation among modules is achieved, real-time and accurate update of the protocol state of the VRRP interface is guaranteed, and rapid switching of the protocol state of the VRRP interface is facilitated.
Based on the above embodiments, the present invention further provides a switch, and a schematic block diagram thereof may be as shown in fig. 2. The switch includes a processor 20, a memory 30, and a network interface 40 connected by a system bus 10. Wherein a processor 20 (e.g., CPU) of the switch is used to provide computing and control capabilities. The memory 30 of the switch includes a nonvolatile storage medium 310 and an internal memory 320. The non-volatile storage medium 310 stores an operating system and a computer program. The internal memory 320 provides an environment for the operating system and the computer program to run on the nonvolatile storage medium. The computer program is executed by a processor to implement a method of updating a protocol state of a VRRP interface.
It will be understood by those skilled in the art that the schematic block diagram shown in fig. 2 is only a block diagram of a portion of the structure associated with the inventive arrangements and does not constitute a limitation of the switches to which the inventive arrangements are applied, and that a particular switch may include more or less components than shown in the drawings, or may combine certain components, or have a different arrangement of components.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, databases, or other media used in embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
In summary, the present invention discloses a method, a switch, and a storage medium for updating a protocol state of a VRRP interface. Monitoring the state of a VLAN interface, sending an event notification of the VLAN interface up when the VLAN interface up exists, checking whether the configuration of the related VLAN interface exists, and if so, adding a sub-interface for the VLAN interface; and when the subinterface up is in the up state, sending the subinterface up event notice, configuring a corresponding IP address for the subinterface, updating the subinterface state, sending a VRRP multicast message, and updating the protocol state of the VRRP interface. On the premise of not changing the independence of the existing modules, the state of the protocol of the VRRP interface can be accurately updated in real time and quickly switched.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (7)
1. A method for updating a protocol state of a VRRP interface, the method comprising the steps of:
monitoring the state of a VLAN interface, sending an event notification of the VLAN interface up when the VLAN interface up exists, checking whether the configuration of the related VLAN interface exists, and if so, adding a sub-interface for the VLAN interface;
when the subinterface up is in use, sending notification of the subinterface up event, configuring corresponding IP address for the subinterface, updating status of the subinterface, sending VRRP multicast message, and updating protocol status of VRRP interface;
the state of the VLAN interface is monitored, when the VLAN interface is up, the VLAN interface up event notification is sent, when a plurality of VLAN interfaces are up at the same time, the VLAN interface up event notification is sent according to the priority of the VLAN interfaces, whether the VLAN interfaces are configured or not is checked, and if yes, a sub-interface is added to the VLAN interfaces;
and when the priorities are the same, sending the VLAN interface up event notification according to the size sequence of the VLAN interface IP addresses, checking whether the configuration of the related VLAN interfaces exists, and if so, respectively adding a sub-interface for the VLAN interfaces.
2. The method for updating the protocol state of a VRRP interface of claim 1 wherein the step of monitoring the state of a VLAN interface, when the VLAN interface up, further comprises the step of, before sending the VLAN interface up event notification:
and initializing the VRRP according to the user VLAN and the VRID configuration.
3. The method for updating the protocol state of a VRRP interface of claim 1 wherein naming the subinterface includes VLAN and/or VRID.
4. The method of claim 3, wherein the step of monitoring the state of VLAN interfaces sends a VLAN interface up event notification when the VLAN interface up is present, checks whether there is a configuration associated with the VLAN interface, and if not, discards adding a sub-interface to the VLAN interface.
5. The method of updating the protocol state of the VRRP interface of claim 1 wherein the protocol state of the VRRP interface comprises an Initialize state, a Backup state and a Master state.
6. A switch comprising a processor and a memory, and one or more programs, wherein the one or more programs are stored in the memory, and wherein the one or more programs being configured to be executed by the one or more processors comprises instructions for performing the method of any of claims 1-5.
7. A storage medium, wherein instructions in the storage medium, when executed by a processor of an electronic device, enable the electronic device to perform the method of any of claims 1-5.
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