CN111212451A - Method and device for switching network transmission channel - Google Patents
Method and device for switching network transmission channel Download PDFInfo
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- CN111212451A CN111212451A CN201911364118.1A CN201911364118A CN111212451A CN 111212451 A CN111212451 A CN 111212451A CN 201911364118 A CN201911364118 A CN 201911364118A CN 111212451 A CN111212451 A CN 111212451A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/00837—Determination of triggering parameters for hand-off
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/305—Handover due to radio link failure
Abstract
The invention provides a method and a device for switching network transmission channels, wherein the method is applied to a server, the server is provided with a virtual network card, the virtual network card is obtained by virtualizing a plurality of physical network cards of the server, and the addresses of the physical network cards are the same, and the method comprises the following steps: collecting monitoring information of a current network transmission channel of the virtual network card; judging whether the current network transmission channel is abnormal; and if the current network transmission channel is abnormal, switching the current network transmission channel to a target network transmission channel of the virtual network card. The virtual network card is obtained by virtualizing the plurality of physical network cards of the server, and the addresses of the plurality of physical network cards in the server are the same, namely the plurality of physical network cards share the same network parameters, so that the usability of BMC network management is improved. And, the invention can also raise the management efficiency of the server system.
Description
Technical Field
The present invention relates to the field of computer technologies, and in particular, to a method and an apparatus for switching a network transmission channel.
Background
A plurality of network cards can be supported in the server system, and are generally divided into a Dedicated LAN (or a private network) and a Shared LAN (or a Shared network), and clients can perform respective configuration according to actual use situations. The dedicated network refers to a network connected to a management network port of the BMC, and the shared network refers to a network connected to the BMC, an extranet, and an operating system, and may actually be two network paths. In general, a client may set different network parameters for each network card, and when a network card fails or a network fails, other IP connections may be used to connect to a BMC (Baseboard Management Controller) for Management operations.
Therefore, the existing method is designed for a redundant network, and can prevent operation and maintenance personnel from losing connection with the BMC for a long time and causing server management to have risks due to the fact that a certain network transmission channel has a problem.
However, the prior art has a problem that a user needs to record network parameters of each network card in detail during the use process, and when a network transmission channel corresponding to a certain network card is not through, the user needs to take time to search network information of other network cards of a current server, so that the management capability of the BMC is lost for a considerable time. In addition, when the number of machines is too large, the number of required IP addresses also increases sharply, which also poses a great challenge to the management work of operation and maintenance personnel.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a method and a device for switching a network transmission channel.
The technical scheme of the invention is realized as follows:
according to one aspect of the present invention, a method for switching network transmission channels is provided, the method is applied to a server, the server is provided with a virtual network card, the virtual network card is obtained by virtualizing a plurality of physical network cards of the server, and addresses of the physical network cards are the same, the method includes: collecting monitoring information of a current network transmission channel of the virtual network card; judging whether the current network transmission channel is abnormal; and if the current network transmission channel is abnormal, switching the current network transmission channel to a target network transmission channel of the virtual network card.
Optionally, switching the current network transmission channel to the target network transmission channel of the virtual network card includes: detecting the current network transmission channel for multiple times; if the detection times reach the maximum detection times, determining that the current network transmission channel is still abnormal; and switching the current network transmission channel to a target network transmission channel of the virtual network card.
Optionally, the detecting the current network transmission channel for multiple times includes: acquiring a zone bit corresponding to a current network transmission channel; and under the condition that the flag bit indicates no connection, detecting the current network transmission channel for multiple times.
According to another aspect of the present invention, there is provided a device for switching network transmission channels, the device is applied to a server, the server is provided with a virtual network card, the virtual network card is obtained by virtualizing a plurality of physical network cards of the server, and addresses of the physical network cards are the same, the device includes: the acquisition module is used for acquiring the monitoring information of the current network transmission channel of the virtual network card; the judging module is used for judging whether the current network transmission channel is abnormal or not; and the switching module is used for switching the current network transmission channel to a target network transmission channel of the virtual network card if the current network transmission channel is abnormal.
Optionally, the switching module includes: the detection module is used for detecting the current network transmission channel for multiple times; the determining module is used for determining that the current network transmission channel is still abnormal if the detection times reach the maximum detection times; and the switching submodule is used for switching the current network transmission channel to a target network transmission channel of the virtual network card.
Optionally, the detection module comprises: the acquisition module is used for acquiring a zone bit corresponding to the current network transmission channel; and the detection submodule is used for detecting the current network transmission channel for multiple times under the condition that the flag bit indicates that the flag bit is not connected.
According to another aspect of the invention, a computer-readable storage medium is provided, storing a computer program executable by an electronic device, the program, when run on the electronic device, causing the electronic device to perform the steps of any of the method embodiments.
According to another aspect of the present invention, there is provided an electronic apparatus including: the system comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete mutual communication through the communication bus; the memory has stored therein a computer program that, when executed by the processor, causes the processor to perform the steps of any of the method embodiments.
The virtual network card is obtained by virtualizing the plurality of physical network cards of the server, and the addresses of the plurality of physical network cards in the server are the same, namely the plurality of physical network cards share the same network parameters, so that the usability of BMC network management is improved.
And the invention also collects the monitoring information of the current network transmission channel of the virtual network card, judges whether the current network transmission channel is abnormal, if the current network transmission channel is abnormal, the current network transmission channel is switched to the target network transmission channel of the virtual network card, thus when the current network transmission channel of the default network card is in fault, the BMC can automatically switch the network transmission channel, and uses the target network transmission channel corresponding to the standby network card to carry out network communication in time, thereby preventing the loss of the connection of the BMC and improving the management efficiency of the server system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for switching a network transmission channel according to the present invention;
fig. 2 shows a specific flowchart of a method for switching a network transmission channel according to the present invention;
fig. 3 shows a block diagram of an apparatus for switching a network transmission channel according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
According to an embodiment of the invention, a method for switching network transmission channels is provided.
As shown in fig. 1, fig. 1 is a flowchart illustrating a method for switching a network transmission channel according to the present invention. The method shown in fig. 1 is applied to a server, the server is provided with a virtual network card, the virtual network card is obtained by virtualizing a plurality of physical network cards of the server, and the addresses of the plurality of physical network cards are the same, and the method includes:
step S110, collecting monitoring information of the current network transmission channel of the virtual network card.
Step S120, determine whether the current network transmission channel is abnormal.
Step S130, if the current network transmission channel is abnormal, the current network transmission channel is switched to the target network transmission channel of the virtual network card.
According to the scheme of the invention, the virtual network card can be obtained by virtualizing the plurality of physical network cards of the server, and the addresses of the plurality of physical network cards in the server are the same, namely the plurality of physical network cards share the same network parameters, so that the usability of BMC network management is improved.
And the invention also collects the monitoring information of the current network transmission channel of the virtual network card, judges whether the current network transmission channel is abnormal, if the current network transmission channel is abnormal, the current network transmission channel is switched to the target network transmission channel of the virtual network card, thus when the current network transmission channel of the default network card is in fault, the BMC can automatically switch the network transmission channel, and uses the target network transmission channel corresponding to the standby network card to carry out network communication in time, thereby preventing the loss of the connection of the BMC and improving the management efficiency of the server system.
Optionally, switching the current network transmission channel to the target network transmission channel of the virtual network card includes: detecting the current network transmission channel for multiple times; if the detection times reach the maximum detection times, determining that the current network transmission channel is still abnormal; and switching the current network transmission channel to a target network transmission channel of the virtual network card.
Optionally, the detecting the current network transmission channel for multiple times further includes: acquiring a zone bit corresponding to a current network transmission channel; and under the condition that the flag bit indicates no connection, detecting the current network transmission channel for multiple times.
In order to facilitate an understanding of the invention, the following description will proceed with reference being made to specific examples.
As shown in fig. 2, fig. 2 is a specific flowchart of a method for switching a network transmission channel according to the present invention. The method shown in fig. 2 comprises:
starting;
by using binding (which is a network card binding technology in a Linux system), N physical network cards on a server can be abstracted (bound) in the system to form a logical network card, which can improve network throughput, realize functions such as network redundancy and load, and the like), and a virtual network card is created by using the technology, wherein the virtual network card is obtained by virtualizing a plurality of physical network cards of the server, and addresses (including an IP Address and a Media Access Control Address) of the plurality of physical network cards are the same. And binding the virtual network card to the address of a certain network card, wherein the addresses of the physical network cards can be the same as the addresses of the network cards bound by the virtual network card. For example, at the time of BMC initialization, the virtual network card may be bound to a Dedicated LAN (private network) and the private network card may be used as a default network card. Again, the private network refers to a network to which a management network port of the BMC is connected;
after the server is powered on, the BMC initializes and creates a network state monitoring thread;
after the network state monitoring thread is established, variable initialization is carried out. That is, a Dedicated LAN Link flag (a connection flag of a Link of a private network) is initialized to 0, and the flag indicates that the state of the Dedicated LAN is Link; initializing a Dedicated LAN Not Link flag (a non-connection flag bit of a Link of a private network) to 0, wherein the flag indicates that the state of the Dedicated LAN is Not Link; initializing a Dedicated LAN Link Retry Time (a Retry number corresponding to a connection state of a Link of a private network) as a default value (for example, the default value may be a preset value such as 10), where the variable indicates a Retry number when a state of the Dedicated LAN is changed to a Link state; a Dedicated LAN NotLink Retry Time (the number of retries corresponding to the unconnected state of the Link of the private network, for example, a preset value such as a default value of 10) is initialized, and this variable indicates the number of retries when the state of the Dedicated LAN changes to the Not Link (unconnected or unconnected) state.
And monitoring the in-place state of the Dedicated LAN, namely regularly monitoring the operating condition of the current network transmission channel of the virtual network card, wherein the detection method comprises but is not limited to testing the network connectivity by using ioctl (control input/output device). The current network transmission channel may be a network transmission channel corresponding to a default network card, or a network transmission channel corresponding to any one of the other network cards. The detection result can occur in the following two cases:
and (3) the Dedicated LAN network is normal, if the last detection result is judged to be a Link according to a Dedicated LAN Link flag, the Retry Time of the Dedicated LAN Link Retry Time is reduced by one, if the Retry Time is equal to 0, the NCSI function is closed (disabled), and the flag bit and the Retry Time are assigned correspondingly. That is, the current network transmission channel can be detected for multiple times in a circulating manner, and when the maximum detection value is reached (or the retry number is 0), the circulation is stopped;
and if the retried LAN (local area network) is Not normal, judging whether the last detection result is Not Link (or acquiring a flag bit corresponding to a current network transmission channel and determining that the flag indicates no connection) according to a deleted LAN Not Link flag, reducing the retried Time of the deleted LAN Not Link Retry Time by one, if the retried Time is equal to 0, starting an (Enable) NCSI (network management system) function, and carrying out corresponding assignment on the flag bit and the retried Time. That is, the current network transmission channel is cyclically detected for multiple times, if the number of detection times reaches the maximum detection times (or the number of retries is 0), the cycle is stopped, and in the case of stopping the cycle, it is determined that the current network transmission channel is still abnormal (that is, the current network transmission channel is really abnormal and not temporarily abnormal due to conditions like network fluctuation, etc.), so as to switch the current network transmission channel to the target network transmission channel of the virtual network card. The target network transmission channel may be a network transmission channel of any network card except the network card corresponding to the current network transmission channel.
In addition, the invention can prevent the frequent operation of NCSI (Network controller Interface, sideband Interface Network controller, industrial standard for supporting server out-of-band management, composed of a management controller and a plurality of Network controllers) from being started or closed according to the flag bit. And, the invention can also prevent the misoperation caused by the error of the single detection result according to the retry number.
According to the embodiment of the invention, the invention also provides a device for switching the network transmission channel.
As shown in fig. 3, fig. 3 is a block diagram illustrating an apparatus for switching a network transmission channel according to the present invention. The apparatus of fig. 3 is applied to a server, where the server is provided with a virtual network card, the virtual network card is obtained by virtualizing a plurality of physical network cards of the server, and addresses of the physical network cards are the same, and the apparatus includes: the acquisition module 310 is configured to acquire monitoring information of a current network transmission channel of the virtual network card; a determining module 320, configured to determine whether a current network transmission channel is abnormal; the switching module 330 is configured to switch the current network transmission channel to a target network transmission channel of the virtual network card if the current network transmission channel is abnormal.
Optionally, the switching module includes: a detection module (not shown) for detecting the current network transmission channel for multiple times; a determining module (not shown) configured to determine that the current network transmission channel is still abnormal if the number of probing times reaches the maximum number of probing times; and a switching submodule (not shown) for switching the current network transmission channel to the target network transmission channel of the virtual network card.
Optionally, the detection module comprises: an obtaining module (not shown) configured to obtain a flag bit corresponding to a current network transmission channel; and a detection submodule (not shown) for detecting the current network transmission channel for multiple times under the condition that the flag bit indicates disconnection.
In summary, according to the above technical solution of the present invention, the virtual network card is obtained by virtualizing the multiple physical network cards of the server, and the addresses of the multiple physical network cards in the server are the same, that is, the multiple physical network cards share the same network parameters, so that the usability of the BMC network management is improved.
And the invention also collects the monitoring information of the current network transmission channel of the virtual network card, judges whether the current network transmission channel is abnormal, if the current network transmission channel is abnormal, the current network transmission channel is switched to the target network transmission channel of the virtual network card, thus when the current network transmission channel of the default network card is in fault, the BMC can automatically switch the network transmission channel, and uses the target network transmission channel corresponding to the standby network card to carry out network communication in time, thereby preventing the loss of the connection of the BMC and improving the management efficiency of the server system.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A method for switching network transmission channels is applied to a server, the server is provided with a virtual network card, the virtual network card is obtained by virtualizing a plurality of physical network cards of the server, and the addresses of the physical network cards are the same, the method comprises the following steps:
collecting monitoring information of a current network transmission channel of the virtual network card;
judging whether the current network transmission channel is abnormal or not;
and if the current network transmission channel is abnormal, switching the current network transmission channel to a target network transmission channel of the virtual network card.
2. The method according to claim 1, wherein switching the current network transmission channel to the target network transmission channel of the virtual network card comprises:
detecting the current network transmission channel for multiple times;
if the detection times reach the maximum detection times, determining that the current network transmission channel is still abnormal;
and switching the current network transmission channel to a target network transmission channel of the virtual network card.
3. The method of claim 2, wherein said probing the current network transmission channel a plurality of times comprises:
acquiring a zone bit corresponding to the current network transmission channel;
and under the condition that the flag bit indicates no connection, detecting the current network transmission channel for multiple times.
4. The utility model provides a switch over network transmission channel's device, its characterized in that, the device is applied to the server, the server is provided with virtual network card, virtual network card is obtained through a plurality of physical network card virtualization of server, and the address of a plurality of physical network card is the same, the device includes:
the acquisition module is used for acquiring the monitoring information of the current network transmission channel of the virtual network card;
the judging module is used for judging whether the current network transmission channel is abnormal or not;
and the switching module is used for switching the current network transmission channel to a target network transmission channel of the virtual network card if the current network transmission channel is abnormal.
5. The apparatus of claim 4, wherein the switching module comprises:
the detection module is used for detecting the current network transmission channel for multiple times;
the determining module is used for determining that the current network transmission channel is still abnormal if the detection times reach the maximum detection times;
and the switching submodule is used for switching the current network transmission channel to a target network transmission channel of the virtual network card.
6. The apparatus of claim 5, wherein the detection module comprises:
the acquisition module is used for acquiring the zone bit corresponding to the current network transmission channel;
and the detection submodule is used for detecting the current network transmission channel for multiple times under the condition that the flag bit indicates that the flag bit is not connected.
7. A computer-readable storage medium, characterized in that it stores a computer program executable by an electronic device, which program, when run on the electronic device, causes the electronic device to carry out the steps of the method of any one of claims 1 to 3.
8. An electronic device, comprising: the system comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete mutual communication through the communication bus;
the memory has stored therein a computer program which, when executed by the processor, causes the processor to carry out the steps of the method of any one of claims 1 to 3.
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| CN111817892A (en) * | 2020-07-10 | 2020-10-23 | 济南浪潮数据技术有限公司 | Network management method, system, electronic equipment and storage medium |
| CN111817892B (en) * | 2020-07-10 | 2023-04-07 | 济南浪潮数据技术有限公司 | Network management method, system, electronic equipment and storage medium |
| CN112068784A (en) * | 2020-09-14 | 2020-12-11 | 上海商米科技集团股份有限公司 | Method for automatically switching multiple network cards of cloud printing equipment and cloud printing equipment |
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| CN112202616A (en) * | 2020-09-30 | 2021-01-08 | 北京大米科技有限公司 | Fault processing method, readable storage medium and electronic device |
| CN115460172A (en) * | 2022-08-22 | 2022-12-09 | 曙光信息产业股份有限公司 | Device address allocation method, device, computer device, medium, and program product |
| CN115460172B (en) * | 2022-08-22 | 2023-12-05 | 曙光信息产业股份有限公司 | Device address allocation method, device, computer device, medium and program product |
| CN115733729A (en) * | 2022-09-29 | 2023-03-03 | 超聚变数字技术有限公司 | Communication fault processing method, system and equipment |
| CN115733729B (en) * | 2022-09-29 | 2023-09-01 | 超聚变数字技术有限公司 | Communication fault processing method, system and equipment |
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