CN115314367A - Network card hot standby method for double-network-port double-host-machine interface - Google Patents
Network card hot standby method for double-network-port double-host-machine interface Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
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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
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Abstract
The invention discloses a network card hot standby method of double-network-port double-host-machine interface, comprising a first host machine interface, a second host machine interface, a first network port, a second network port and a switch matrix; the first host interface, the second host interface, the first network port and the second network port are connected through a switch matrix; binding the first network port as a main network port of the first host interface, and using the second network port as a standby network port of the first host interface; binding the second network port as a main network port of the second host interface, wherein the first network port is used as a standby network port of the second host interface; when the first network port or the second network port fails, the first host interface or the second host interface corresponding to the bound first network port or the bound second network port switches the data path from the main network port to the standby network port through the switch matrix, and transmits and receives the data message through the standby network port.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a network card hot standby method of double network ports and double host interfaces.
Background
For an application scene with hot standby requirements, each host interface needs to have an active network port and a standby network port, and when the active network port breaks down, the operating system is switched to the standby network port. Two network ports are required for each host interface.
Two CPUs are arranged in the two-way server, and in order to realize the connection of the two CPUs with the network, each CPU can be connected with one network card, or a single network card capable of providing two host interfaces can be adopted. A single network card for both host interfaces is a more economical option.
As shown in fig. 1, in the conventional method, for a single network card with two host interfaces, two network ports are required for each host interface to support hot standby, and a total of 4 network ports are required, which causes problems of large chip area and large power consumption.
Aiming at the problems in the prior art, the invention provides a network card hot standby method of double network ports and double host interfaces.
Disclosure of Invention
The invention aims to provide a network card hot standby method of double network ports and double host interfaces aiming at the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a network card hot standby method of double network ports and double host interfaces comprises a first host interface, a second host interface, a first network port, a second network port and a switch matrix; the first host interface, the second host interface, the first network port and the second network port are connected through a switch matrix; binding the first network port as a main network port of the first host interface, and using the second network port as a standby network port of the first host interface; binding the second network port as a main network port of the second host interface, wherein the first network port is used as a standby network port of the second host interface; when the first network port or the second network port fails, the first host interface or the second host interface corresponding to the bound first network port or the bound second network port switches the data path from the main network port to the standby network port through the switch matrix, and transmits and receives the data message through the standby network port.
Further, the switch matrix comprises a sending switch matrix and a receiving switch matrix;
the sending switch matrix is respectively connected with the first host interface, the second host interface, the first network port and the second network port and is used for forwarding the data message of the first host interface or the second host interface to the first network port or the second network port;
and the receiving switch matrix is respectively connected with the first host interface, the second host interface, the first network port and the second network port and is used for forwarding the data message of the first network port or the second network port to the first host interface or the second host interface.
Further, the sending switch matrix comprises a first current divider, a second current divider, a first arbiter and a second arbiter, wherein the first current divider is respectively connected with the first host interface, the first arbiter and the second arbiter, the second current divider is respectively connected with the second host interface, the first arbiter and the second arbiter, the first arbiter is further connected with the first network port, and the second arbiter is further connected with the second network port;
the first shunt and the second shunt are used for realizing the selection of signals;
the first arbiter and the second arbiter are used for merging the data messages from the first host interface and the second host interface.
Further, the receiving switch matrix comprises a third current divider, a fourth current divider, a third arbiter and a fourth arbiter, wherein the third arbiter is respectively connected with the first host interface, the third current divider and the fourth current divider, the fourth arbiter is respectively connected with the second host interface, the third current divider and the fourth current divider, the third current divider is further connected with the first network port, and the fourth current divider is further connected with the second network port;
the third shunt and the fourth shunt are used for realizing the selection of signals;
the third arbiter and the fourth arbiter are used for merging the data messages from the first network port and the second network port.
Further, the first network port configures a first register, where the first register includes a first configuration module and a first flow table module;
the first configuration module is used for realizing configuration information of the first host interface and the second host interface;
the first flow table module is used for inquiring the destination host corresponding to the data message.
Further, the second port configures a second register, where the second register includes a second configuration module and a second flow table module;
the second configuration module is used for realizing the configuration information of the first host interface and the second host interface;
the second flow table module is used for inquiring the destination host corresponding to the data message.
The system further comprises a first CPU module and a second CPU module, wherein the first CPU module is connected with a first host interface, and the second CPU module is connected with a second host interface; the signal selection of the first shunt and the second shunt is controlled by the first CPU module and the second CPU module, so that the data message is diverted to the network port which normally works.
Further, the data stored in the first flow table module and the second flow table module includes an ID of the destination host.
Furthermore, the target host is a physical host or a virtual host, and the network card hot standby method supports a plurality of target hosts, and the target hosts are uniquely characterized by the ID.
Compared with the prior art, the invention saves two network ports compared with the traditional method, thereby saving the chip area and the power consumption. In addition, the wiring of customers is saved. The method is particularly suitable for a two-way server; in addition, the two network ports of the method are active at the same time and are not distinguished by a main network port and a standby network port. The two network ports mutually serve as standby network ports of each other. .
Drawings
Fig. 1 is a schematic diagram of a prior art network port transfer method provided in the background art;
fig. 2 is a schematic diagram of a network card hot standby method for dual network ports and dual host interfaces according to an embodiment;
fig. 3 is a schematic diagram illustrating a network card failover method for dual-network-port dual-host interface according to an embodiment.
Detailed Description
The following embodiments of the present invention are provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
The invention aims to provide a network card hot standby method of double-network-port double-host interface aiming at the defects of the prior art, the method is a hot standby scheme between two network ports of the same network card controller, and a network card controller chip after applying the scheme serves two CPUs in the same two-way server.
Example one
As shown in fig. 2 to 3, the network card hot standby method for dual network ports and dual host interfaces provided in this embodiment includes a network controller chip, a first CPU module 5, a second CPU module 6, and a network 7, where the network controller chip includes a first host interface 1, a second host interface 2, a first network port 3, a second network port 4, and a switch matrix.
The first CPU module 5 is connected to the first host interface 1, and is configured to implement configuration of the first host interface 1; the second CPU module 6 is connected to the second host interface 2, and is configured to implement configuration of the second host interface 2.
The first host interface 1 is bound and connected with the first port 3, so that the first port 3 is used as a main network of the first host interface 1 (i.e. an active channel is formed); the second host interface 2 is bound and connected with the second network port 4, so that the second network port 4 is used as a main network of the second host interface 2 (i.e. an active channel is formed); meanwhile, the second port 4 is used as a standby port of the first host interface 1 (i.e., a standby path is formed), and the first port 3 is used as a standby port of the second host interface 2 (i.e., a standby path is formed).
When the first network interface 3 bound with the first host interface 1 fails, the first host interface 1 switches the data path from the first network interface 3 (active path) to the second network interface 4 (standby path), and the second network interface 4 bound with the second host interface 2 is used for receiving and transmitting data messages; when the second port 4 bound to the second host interface 2 fails, the second host interface 2 switches the data path from the second port 4 (active path) to the first port 3 (standby path), and the first port 3 bound to the first host interface 1 is used for receiving and transmitting data messages.
The two network ports of the embodiment are simultaneously used as the main network ports, and the two network ports are mutually used as the standby network ports of the other side, so that the logic overhead of the standby network ports is saved.
The first network port 3 and the second network port 4 are both connected with a network 7 to select different networks.
The switch matrix is a logic circuit connected with a first host interface 1, a second host interface 2, a first network interface 3 and a third network interface 4 in the network card controller chip and is used for realizing the switching of network ports; the switch matrix comprises a transmitting switch matrix 8 and a receiving switch matrix 9.
The sending switch matrix 8 is respectively connected with the first host interface 1, the second host interface 2, the first network port 3 and the second network port 4, and is used for forwarding the data message of the first host interface 1 or the second host interface 2 to the first network port 3 or the second network port 4;
and the receiving switch matrix 9 is respectively connected with the first host interface 1, the second host interface 2, the first network port 3 and the second network port 4, and is used for forwarding the data message of the first network port 3 or the second network port 4 to the first host interface 1 or the second host interface 2.
The sending switch matrix 8 comprises a first splitter 81, a second splitter 82, a first arbiter 83, and a second arbiter 84, the first splitter 81 is connected to the first host interface 1, the first arbiter 83, and the second arbiter 84, the second splitter 82 is connected to the second host interface 2, the first arbiter 83, and the second arbiter 84, the first arbiter 83 is further connected to the first port 3, and the second arbiter 84 is further connected to the second port 4; the first shunt 81 and the second shunt 82 are used for realizing selection of signals; the first arbiter 83 and the second arbiter 84 are configured to merge the data packets from the first host interface 1 and the second host interface 2, and may simply adopt a round-robin arbitration method.
The receiving switch matrix 9 includes a third shunt 91, a fourth shunt 92, a third arbiter 93, and a fourth arbiter 94, the third arbiter 93 is connected to the first host interface 1, the third shunt 91, and the fourth shunt 92, the fourth arbiter 94 is connected to the second host interface 2, the third shunt 91, and the fourth shunt 92, the third shunt 91 is further connected to the first port 3, and the fourth shunt 92 is further connected to the second port 4; the third shunt 91 and the fourth shunt 92 are used for realizing the selection of signals; the third arbiter 93 and the fourth arbiter 94 are configured to merge the data packets from the first port 3 and the second port 4, and may simply adopt a round-robin arbitration method.
The first network port 3 configures a first register, and the first register comprises a first configuration module 31 and a first flow table module 32;
the first configuration module 31 is connected to the first arbiter 83, and is configured to implement configuration information of the first host interface 1 or the second host interface 2;
the first flow table module 32 is connected to the third shunt 91, and is configured to query a destination host corresponding to the data packet, that is, the first host interface 1 or the second host interface 2; and the first flow table module 32 stores the data packet and information of the host interface, such as the ID of the host.
The second port 4 configures a second register, where the second register includes a second configuration module 41 and a second flow table module 42;
the second configuration module 41 is connected to the second arbiter 84, and is configured to implement configuration information of the first host interface 1 or the second host interface 2;
the second flow table module 42 is connected to the fourth shunt 92, and is configured to query a destination host corresponding to the data packet, that is, the first host interface 1 or the second host interface 2; and the second flow table module 42 stores the data packet and information of the host interface, such as the ID of the host.
In this embodiment, each network port is prepared with a set of configuration registers for two host interfaces respectively, and is used for simultaneously servicing the two host interfaces during hot standby switching.
In the direction of sending the switch matrix, the sending switch matrix forwards the data packet to the corresponding first network port 3 or second network port 4 according to the configuration information of the first host interface 1 or second host interface 2.
In the direction of receiving the switch matrix, the first network port 3 or the second network port 4 finds out the destination host interface (i.e. the first host interface 1 or the second host interface 2) corresponding to the data message from the corresponding first flow table module and the second flow table module, and forwards the data message to the destination host interface by the receiving switch matrix.
The present embodiment takes the first host interface as an example for explanation:
when the data message is sent, the sending switch matrix is adopted for realizing, when the first host interface 1 sends the data message, the first host interface matches a corresponding network interface through the sending switch matrix, specifically, a first CPU module configures a signal sel0 for a first shunt, and the data message flows to a first configuration module through a first arbiter so that the first host interface is communicated with a bound first network port; when the first CPU module detects that the first network port is abnormal, the selected signal is changed immediately, the selected signal is changed from sel0 to sel1, and the data message flows to the second configuration module through the second arbiter, so that the first host interface is communicated with the standby second network port, and the data message is switched to the network port which normally works.
When the first host interface is communicated with the bound first network port, the first network port inquires the ID of a target host corresponding to the data message in the first flow table module, and when the inquired ID is matched with the first host interface, the current data message flows to the first host interface through the third arbiter, so that the data message is received; when the first host interface is communicated with the second network port, the second network port inquires the ID of the target host corresponding to the data message in the first flow table module, and when the inquired ID is matched with the first host interface, the current data message flows to the first host interface through the third arbiter, so that the data message is received.
The network port of the embodiment can determine to modify, count and other operations on the message belonging to the host interface according to the configuration register of the host interface; because the flow table module receives the ID corresponding to the host interface, the host interface corresponding to the current data message can be distinguished according to the ID, and the transmission of the data message is further realized.
The matching result of the first flow table module or the second flow table module contains the destination host ID. The host ID is a minimum of 1 bit. When each physical host interface contains multiple VMs, the destination host ID may be multiple bits, one for each VM.
Compared with the prior art, the invention saves two network ports compared with the traditional method, thereby saving the chip area and the power consumption. In addition, the wiring of customers is saved. The method is particularly suitable for two-way servers.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (9)
1. A network card hot standby method of double network ports and double host interfaces is characterized by comprising a first host interface, a second host interface, a first network port, a second network port and a switch matrix; the first host interface, the second host interface, the first network port and the second network port are connected through a switch matrix; binding the first network port as a main network port of the first host interface, and using the second network port as a standby network port of the first host interface; binding the second network port as a main network port of the second host interface, wherein the first network port is used as a standby network port of the second host interface; and when the first network port or the second network port fails, the first host interface or the second host interface corresponding to the bound first network port or the second network port switches the data path from the main network port to the standby network port through the switch matrix, and receives and transmits the data message through the standby network port.
2. The network card hot standby method of double network ports and double host interfaces according to claim 1, wherein the switch matrix comprises a transmitting switch matrix and a receiving switch matrix;
the sending switch matrix is respectively connected with the first host interface, the second host interface, the first network port and the second network port and is used for forwarding the data message of the first host interface or the second host interface to the first network port or the second network port;
and the receiving switch matrix is respectively connected with the first host interface, the second host interface, the first network port and the second network port and is used for forwarding the data message of the first network port or the second network port to the first host interface or the second host interface.
3. The network card hot standby method of claim 2, wherein the sending switch matrix comprises a first splitter, a second splitter, a first arbiter, and a second arbiter, wherein the first splitter is connected to the first host interface, the first arbiter, and the second arbiter, the second splitter is connected to the second host interface, the first arbiter, and the second arbiter, the first arbiter is connected to the first network port, and the second arbiter is connected to the second network port;
the first shunt and the second shunt are used for realizing the selection of signals;
the first arbiter and the second arbiter are used for merging the data messages from the first host interface and the second host interface.
4. The network card hot standby method of dual-network-port dual-host interface of claim 3, wherein the receiving switch matrix comprises a third splitter, a fourth splitter, a third arbiter, and a fourth arbiter, wherein the third arbiter is connected to the first host interface, the third splitter, and the fourth splitter, the fourth arbiter is connected to the second host interface, the third splitter, and the fourth splitter, the third splitter is further connected to the first network port, and the fourth splitter is further connected to the second network port;
the third shunt and the fourth shunt are used for realizing the selection of signals;
the third arbiter and the fourth arbiter are used for merging the data messages from the first network port and the second network port.
5. The method according to claim 4, wherein the first network port configures a first register, and the first register includes a first configuration module and a first flow table module;
the first configuration module is used for realizing configuration information of the first host interface and the second host interface;
the first flow table module is used for inquiring the destination host corresponding to the data message.
6. The network card hot standby method of double network ports and double host interfaces according to claim 5, wherein the second network port configures a second register, and the second register includes a second configuration module and a second flow table module;
the second configuration module is used for realizing the configuration information of the first host interface and the second host interface;
the second flow table module is used for inquiring the destination host corresponding to the data message.
7. The network card hot standby method of double network ports and double host interfaces of claim 3, further comprising a first CPU module and a second CPU module, wherein the first CPU module is connected with the first host interface, and the second CPU module is connected with the second host interface; the signal selection of the first shunt and the second shunt is controlled by the first CPU module and the second CPU module, so that the data message is diverted to the network port which normally works.
8. The method as claimed in claim 6, wherein the data stored in the first and second flow table modules includes an ID of the destination host.
9. The method as claimed in claim 8, wherein the destination host is a physical host or a virtual host, and the network card hot-standby method supports a plurality of destination hosts, and the destination hosts are uniquely characterized by IDs.
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| CN116319923B (en) * | 2023-05-11 | 2023-09-12 | 三亚明熹一品信息技术服务有限公司 | Double-network-port control system for customizing multi-channel acquisition signals of healthy robot |
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