CN115955433B - Data transmission method and device and electronic equipment - Google Patents
Data transmission method and device and electronic equipment Download PDFInfo
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Abstract
The embodiment of the application provides a data transmission method, a data transmission device and electronic equipment. In this embodiment, a three-layer interface is added to the IGMP-Snooping device at the user side, and the virtual IP address configured by the three-layer interface is used to obtain the interface IP address configured by the Master located in the same VRRP group, so that adding a router port to the interface IP address of each network device is forbidden, and only the interface IP address configured by the Master and corresponding to the virtual IP address is added to transmit the multicast message through the router port, thereby avoiding adding multiple router ports at the same time, reducing unnecessary forwarding of the multicast message, and reducing waste of bandwidth resources.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a data transmission method, a data transmission device, and an electronic device.
Background
Based on internet group management protocol Snooping (Internet Group Management Protocol Snooping, IGMP-Snooping) networking shown in fig. 1, a multicast source sends a multicast message to a multicast client through IGMP-Snooping equipment, two network equipment (a firewall 1 and a firewall 2 in fig. 1) work in a master-slave mode and are connected with the IGMP-Snooping equipment, the two network equipment is configured with the same virtual IP address, interface IP addresses (real address 1.1.1 and real address 1.1.1.2 in fig. 1) of each network equipment send a pim protocol message, under the condition, the IGMP-Snooping equipment locally configures two router ports (router ports) based on the pim protocol message sent by the two interface IP addresses, namely port A1 and port B1, when the port A1 receives the multicast message, the port B1 also forwards a part of traffic, and the forwarding performance of the network equipment is also affected, and unnecessary bandwidth resources are also occupied.
Disclosure of Invention
In view of this, the embodiments of the present application provide a data transmission method, apparatus, and electronic device, so as to add a router port to an interface IP address configured by a Master only by limiting the router port to an interface IP address of a standby device, thereby avoiding adding multiple router ports, reducing unnecessary forwarding of multicast packets, and reducing waste of bandwidth resources.
According to a first aspect of embodiments of the present application, a data transmission method is provided, where the method is applied to an internet group management protocol on a user side, where the IGMP-Snooping device is configured with a three-layer interface, the three-layer interface is configured with an interface IP address, the IGMP-Snooping device is connected to a first network device and a second network device, the interface IP address configured with the three-layer interface, an interface IP address of an interface on the first network device connected to the IGMP-Snooping device, and an interface IP address of an interface on the second network device connected to the IGMP-Snooping device are in the same virtual router redundancy protocol VRRP group; the first network device in the VRRP group is a Master device, the second network device and the IGMP-Snooping device are Backup devices, and the competing priority of the second network device is greater than that of the IGMP-Snooping device; the three-layer interface is also configured with a virtual IP address; the method comprises the following steps:
when a pim protocol message sent by any network device in the same VRRP group is received, if the pim protocol message is a pim protocol message sent by the Backup based on the configured interface IP address, a router port corresponding to the interface IP address is forbidden to be added locally; if the pim protocol message is a pim protocol message sent by the Master based on the configured interface IP address, locally adding a router port corresponding to the Master, wherein the router port is used for receiving a multicast message;
and when the multicast message is acquired through the router port corresponding to the Master, transmitting the multicast message to the multicast client.
According to a second aspect of the embodiments of the present application, there is provided a data transmission apparatus, where the apparatus is applied to an internet group management protocol on a user side, where the IGMP-Snooping device is configured with a three-layer interface, where the three-layer interface is configured with an interface IP address, where the IGMP-Snooping device connects a first network device and a second network device, where the interface IP address configured with the three-layer interface, an interface IP address of an interface on the first network device that connects the IGMP-Snooping device, and an interface IP address of an interface on the second network device that connects the IGMP-Snooping device are in the same virtual router redundancy protocol VRRP group; the first network device in the VRRP group is a Master device, the second network device and the IGMP-Snooping device are Backup devices, and the competing priority of the second network device is greater than that of the IGMP-Snooping device; the three-layer interface is also configured with a virtual IP address; the device comprises:
the router port adding module is used for prohibiting the router port corresponding to the interface IP address from being added locally if the pim protocol message is the pim protocol message sent by the Backup based on the configured interface IP address when the pim protocol message sent by any network device in the same VRRP group is received; if the pim protocol message is a pim protocol message sent by the Master based on the configured interface IP address, locally adding a router port corresponding to the Master, wherein the router port is used for receiving a multicast message;
and the message transmission module is used for transmitting the multicast message to the multicast client when the multicast message is acquired through the router port corresponding to the Master.
According to a third aspect of embodiments of the present application, there is provided an electronic device, including: a processor and a memory;
wherein the memory is configured to store machine-executable instructions;
the processor is configured to read and execute the machine executable instructions stored in the memory, so as to implement the method as in the first aspect.
The technical scheme provided by the embodiment of the application can comprise the following beneficial effects:
in the embodiment of the application, a three-layer interface is added to IGMP-Snooping equipment at a user side, the virtual IP address configured by the three-layer interface is used for acquiring the interface IP address configured by the Master in the same VRRP group, so that the router port is forbidden to be added for the interface IP address of the standby equipment, and the router port is only added for the interface IP address configured by the Master, so that a multicast message is transmitted through the router port, a plurality of router ports are prevented from being added at the same time, unnecessary forwarding of the multicast message is reduced, and waste of bandwidth resources is reduced.
Drawings
Fig. 1 is a schematic diagram of IGMP-Snooping device networking provided in an embodiment of the present application.
Fig. 2 is a flowchart of a data transmission method according to an embodiment of the present application.
Fig. 3 is a diagram illustrating multicast packet transmission according to an embodiment of the present application.
Fig. 4 is a diagram of an example multicast packet transmission after a VRRP switching event provided in an embodiment of the present application.
Fig. 5 is a block diagram of a data transmission device according to an embodiment of the present application.
Fig. 6 is a block diagram of an electronic device provided in an embodiment of the present application.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.
The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, a first message may also be referred to as a second message, and similarly, a second message may also be referred to as a first message, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.
Next, embodiments of the present specification will be described in detail.
As shown in fig. 2, fig. 2 is a flowchart of a data transmission method provided in the embodiment of the present application, where the data transmission method is applied to an internet group management protocol Snooping IGMP-Snooping device on a user side, where the IGMP-Snooping device may be a switch, and since IGMP-Snooping is a two-layer protocol, a previous IGMP-Snooping device only has a two-layer interface, and in the embodiment of the present application, a three-layer interface is configured for the IGMP-Snooping device, and the three-layer interface is configured with an interface IP address and a virtual IP address.
The IGMP-Snooping device connects the first network device and the second network device, and in this embodiment of the present application, the first network device and the second network device may be firewall devices, or may be other devices, which is not specifically limited, and in this embodiment of the present application, only the first network device and the second network device are described as firewall devices.
In this embodiment, the interface IP address configured by the three-layer interface of the IGMP-Snooping device, the interface IP address of the interface connected to the IGMP-Snooping device on the first network device, and the interface IP address of the interface connected to the IGMP-Snooping device on the second network device are in the same virtual routing redundancy protocol VRRP group, the virtual IP addresses configured by each device in the VRRP group are in the same network segment, and each device in the VRRP group performs an election on Master device, for example, the election priority of the first network device is the largest, and the election priority of the second network device is greater than the election priority of the IGMP-Snooping device. Based on the above description, initially, the first network device in the VRRP group is the Master device Master, the second network device and the IGMP-Snooping device are the Backup devices, and when the first network device fails, the second network device is the new Master device Master.
In this embodiment, the Master is determined by the following steps: in the Master election stage, the Master is elected based on the VRRP advertisement messages sent by each device in the received VRRP group.
Here, the VRRP advertisement message sent by each device is sent through the interface IP address of each device, where the VRRP advertisement message carries the election priority of the device, each device in the VRRP group may receive the VRRP advertisement message sent by the other device, and determine the Master device according to the election priority carried by the VRRP advertisement message sent by the other device.
In this embodiment, initially, a Master device Master selected in the VRRP group is a first network device, and after the first network device is selected as the Master, an ARP message is sent to each device in the VRRP group to notify each device of its configured virtual IP address.
As shown in fig. 2, the data transmission method includes the steps of:
s210: when a pim protocol message sent by any network device in the same VRRP group is received, if the pim protocol message is a pim protocol message sent by Backup based on a configured interface IP address, a router port corresponding to the interface IP address is forbidden to be added locally; if the pim protocol message is a pim protocol message sent by the Master based on the configured interface IP address, a router port corresponding to the Master is added locally, and the router port is used for receiving the multicast message.
In this embodiment, the foregoing pim protocol packet refers to a pim hello packet, which is used for discovering, keeping alive, etc. of a pim neighbor, where a source IP address of the pim hello packet is an IP address of each interface, and a destination IP address is a specified IP address, where the specified IP address may be, for example: 244.0.0.18.
in this embodiment, for the VRRP group, each device sends a pim protocol message based on its interface IP address. Based on this, in the embodiment of the present application, the IGMP-Snooping device receives a pim protocol packet sent by the interface IP address of the first network device and the interface IP address of the second network device.
Based on the description, when the received pim protocol message is a pim protocol message sent by Backup based on the configured interface IP address, a router port corresponding to the interface IP address is forbidden to be added locally; if the pim protocol message is a pim protocol message sent by the Master based on the configured interface IP address, a router port corresponding to the Master is added locally, and the router port is used for receiving the multicast message.
S220: when the multicast message is acquired through the router port corresponding to the Master, the multicast message is transmitted to the multicast client.
In this embodiment, after the router port corresponding to the Master is added, the multicast message may be received through the router port corresponding to the Master, that is, when the multicast message is obtained through the router port corresponding to the Master, the multicast message is transmitted to the multicast client.
Fig. 3 is a diagram illustrating an example of multicast packet transmission provided in the embodiment of the present application, as shown in fig. 3, where a multicast source sends a multicast packet to a Master device Master (firewall 1 in fig. 3) through an IGMP-Snooping device on a multicast source side, the Master device Master sends the multicast packet to an IGMP-Snooping device on a user side through its corresponding router port A1, and the IGMP-Snooping device directly sends the multicast packet to a multicast client, and forwarding of a second network device (i.e. firewall 2 in fig. 3) through B1 is not required.
So far, the description of the flow shown in fig. 2 is completed.
As can be seen from the flow of fig. 2, in the embodiment of the present application, a three-layer interface is added to the IGMP-Snooping device at the user side, and the virtual IP address configured by the three-layer interface is used to obtain the interface IP address configured by the Master in the same VRRP group, so that the router ports are forbidden to be added to the interface IP addresses of the network devices, and only the router ports are added to the interface IP address configured by the Master, so as to transmit the multicast message through the router ports, thereby avoiding adding multiple router ports at the same time, reducing unnecessary forwarding of the multicast message, and reducing the waste of bandwidth resources.
As an optional implementation manner of the embodiment of the present application, the first network device and the second network device are configured with the same virtual IP address; the data transmission method further comprises the following steps:
first, when a first network device serving as a Master is abnormal, a second network device replaces the first network device as the Master.
Illustratively, in the present embodiment, the first network device abnormality may be various, for example, a network failure, an interface failure of the first network device, a load of the first network device exceeding a specified threshold, and the like, and the embodiment of the present application is not particularly limited.
In this embodiment, in this step, as shown in fig. 4, when the first network device serving as the Master is abnormal, the second network device replaces the first network device as the Master.
And secondly, when receiving the pim protocol message sent by the second network equipment as the Master based on the configured interface IP address, adding the router port corresponding to the second network equipment again locally, and deleting the router port corresponding to the existing first network equipment.
In this embodiment, when the second network device is received as the Master and a pim protocol packet sent based on the configured interface IP address is sent, a router port corresponding to the second network device is added again locally, and the router port corresponding to the existing first network device is deleted, so that the situation that the packet is forwarded in multiple times in the VRRP switching process, which is caused by that the original network cannot immediately delete the router port corresponding to the first network device, is avoided, unnecessary forwarding of multicast packets is further reduced, and waste of bandwidth resources is reduced.
Fig. 4 is a diagram illustrating an example of multicast packet transmission after a VRRP switching event provided in the embodiment of the present application, as shown in fig. 4, where a multicast source sends a multicast packet to a Master device Master (firewall 2 in fig. 4) after switching through an IGMP-Snooping device on a multicast source side, and the Master device Master sends the multicast packet to an IGMP-Snooping device on a user side through its corresponding router port B1, and the IGMP-Snooping device directly sends the multicast packet to a multicast client, without forwarding a first network device (i.e., firewall 1 in fig. 4) through A1.
Corresponding to the embodiments of the aforementioned method, the present specification also provides embodiments of the apparatus and the terminal to which it is applied.
As shown in fig. 5, fig. 5 is a block diagram of a data transmission apparatus provided in an embodiment of the present application, where the data transmission apparatus is applied to an internet group management protocol Snooping IGMP-Snooping device on a user side, where the IGMP-Snooping device is configured with a three-layer interface, where the three-layer interface is configured with an interface IP address, where the IGMP-Snooping device connects a first network device and a second network device, where the three-layer interface is configured with an interface IP address, where the first network device connects an interface IP address of the IGMP-Snooping device, and where the second network device connects an interface IP address of the IGMP-Snooping device are in the same virtual router redundancy protocol VRRP group; the first network device in the VRRP group is a Master device, the second network device and the IGMP-Snooping device are Backup devices, and the competing priority of the second network device is greater than that of the IGMP-Snooping device; the three-layer interface is also configured with a virtual IP address, and the data transmission device includes:
the router port adding module is used for prohibiting the router port corresponding to the interface IP address from being added locally if the pim protocol message is a pim protocol message sent by Backup based on the configured interface IP address when the pim protocol message sent by any network device in the same VRRP group is received; if the pim protocol message is a pim protocol message sent by a Master based on a configured interface IP address, a router port corresponding to the Master is added locally, and the router port is used for receiving a multicast message;
and the message transmission module is used for transmitting the multicast message to the multicast client when the multicast message is acquired through the router port corresponding to the Master.
As an alternative implementation of the embodiment of the present application, the Master is determined by the following steps:
in the Master election stage, the Master is elected based on the VRRP advertisement messages sent by each device in the received VRRP group.
As an optional implementation manner of the embodiment of the present application, the virtual IP addresses configured by each device in the VRRP group are in the same network segment.
As an optional implementation manner of the embodiment of the present application, the first network device and the second network device are configured with the same virtual IP address; the data transmission device further includes:
a replacing module, configured to replace, when the first network device serving as the Master is abnormal, the first network device by the second network device as the Master;
and the router port deleting module is used for deleting the router port corresponding to the existing first network device by adding the router port corresponding to the second network device again locally when receiving the pim protocol message sent by the second network device as the Master based on the configured interface IP address.
As an optional implementation manner of the embodiment of the present application, the first network device and the second network device are both firewall devices.
The description of the apparatus shown in fig. 5 is thus completed.
The implementation process of the functions and roles of each unit in the above device is specifically shown in the implementation process of the corresponding steps in the above method, and will not be described herein again.
For the device embodiments, reference is made to the description of the method embodiments for the relevant points, since they essentially correspond to the method embodiments. The apparatus embodiments described above are merely illustrative, wherein the modules illustrated as separate components may or may not be physically separate, and the components shown as modules may or may not be physical, i.e., may be located in one place, or may be distributed over a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purposes of the present description. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
Correspondingly, the embodiment of the application also provides a hardware structure diagram of the device shown in fig. 5, and in particular, as shown in fig. 6, the electronic device may be a device for implementing the method. As shown in fig. 6, the hardware structure includes: a processor and a memory.
Wherein the memory is configured to store machine-executable instructions;
the processor is configured to read and execute the machine executable instructions stored in the memory, so as to implement the corresponding data transmission method embodiment as shown above.
The memory may be any electronic, magnetic, optical, or other physical storage device that may contain or store information, such as executable instructions, data, or the like, for one embodiment. For example, the memory may be: volatile memory, nonvolatile memory, or similar storage medium. In particular, the memory may be RAM (Radom Access Memory, random access memory), flash memory, a storage drive (e.g., hard drive), a solid state disk, any type of storage disk (e.g., optical disk, DVD, etc.), or a similar storage medium, or a combination thereof.
Thus, the description of the electronic device shown in fig. 6 is completed.
The foregoing describes specific embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
Other embodiments of the present description will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This specification is intended to cover any variations, uses, or adaptations of the specification following, in general, the principles of the specification and including such departures from the present disclosure as come within known or customary practice within the art to which the specification pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the specification being indicated by the following claims.
It is to be understood that the present description is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present description is limited only by the appended claims.
The foregoing description of the preferred embodiments is provided for the purpose of illustration only, and is not intended to limit the scope of the disclosure, since any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the disclosure are intended to be included within the scope of the disclosure.
Claims (10)
1. The data transmission method is characterized in that the method is applied to an Internet group management protocol (IGMP-Snooping) device at a user side, the IGMP-Snooping device is configured with a three-layer interface, the three-layer interface is configured with an interface IP address, the IGMP-Snooping device is connected with a first network device and a second network device, the interface IP address configured with the three-layer interface, the interface IP address of an interface connected with the IGMP-Snooping device on the first network device and the interface IP address of an interface connected with the IGMP-Snooping device on the second network device are in the same Virtual Router Redundancy Protocol (VRRP) group; the first network device in the VRRP group is a Master device, the second network device and the IGMP-Snooping device are Backup devices, and the competing priority of the second network device is greater than that of the IGMP-Snooping device; the three-layer interface is also configured with a virtual IP address; the method comprises the following steps:
when a pim protocol message sent by any network device in the same VRRP group is received, if the pim protocol message is a pim protocol message sent by the Backup based on the configured interface IP address, a router port corresponding to the interface IP address is forbidden to be added locally; if the pim protocol message is a pim protocol message sent by the Master based on the configured interface IP address, locally adding a router port corresponding to the Master, wherein the router port is used for receiving a multicast message;
and when the multicast message is acquired through the router port corresponding to the Master, transmitting the multicast message to a multicast client.
2. The method of claim 1, wherein the Master is determined by:
and in the Master election stage, the Master is elected based on the received VRRP notification messages sent by all the devices in the VRRP group.
3. The method of claim 1, wherein the virtual IP addresses configured by the devices within the VRRP-group are in the same network segment.
4. The method of claim 1, wherein the first network device and the second network device are configured with the same virtual IP address; the method further comprises the steps of:
when the first network equipment serving as the Master is abnormal, the second network equipment replaces the first network equipment to serve as the Master;
and when receiving a pim protocol message sent by the second network equipment as a Master based on the configured interface IP address, locally re-adding a router port corresponding to the second network equipment, and deleting the router port corresponding to the existing first network equipment.
5. The method of claim 1, wherein the first network device and the second network device are both firewall devices.
6. A data transmission device, characterized in that the device is applied to an internet group management protocol (IGMP-Snooping) device at a user side, the IGMP-Snooping device is configured with a three-layer interface, the three-layer interface is configured with an interface IP address, the IGMP-Snooping device is connected with a first network device and a second network device, the interface IP address configured with the three-layer interface, the interface IP address of an interface connected with the IGMP-Snooping device on the first network device, and the interface IP address of an interface connected with the IGMP-Snooping device on the second network device are in the same virtual route redundancy protocol VRRP group; the first network device in the VRRP group is a Master device, the second network device and the IGMP-Snooping device are Backup devices, and the competing priority of the second network device is greater than that of the IGMP-Snooping device; the three-layer interface is also configured with a virtual IP address; the device comprises:
the router port adding module is used for prohibiting the router port corresponding to the interface IP address from being added locally if the pim protocol message is the pim protocol message sent by the Backup based on the configured interface IP address when the pim protocol message sent by any network device in the same VRRP group is received; if the pim protocol message is a pim protocol message sent by the Master based on the configured interface IP address, locally adding a router port corresponding to the Master, wherein the router port is used for receiving a multicast message;
and the message transmission module is used for transmitting the multicast message to the multicast client when the multicast message is acquired through the router port corresponding to the Master.
7. The apparatus of claim 6, wherein the Master is determined by:
and in the Master election stage, the Master is elected based on the received VRRP notification messages sent by all the devices in the VRRP group.
8. The apparatus of claim 6, wherein virtual IP addresses configured by devices within the VRRP-group are in the same network segment.
9. The apparatus of claim 6, wherein the first network device and the second network device are configured with the same virtual IP address; the apparatus further comprises:
a replacing module, configured to replace, when the first network device serving as the Master is abnormal, the first network device by the second network device as the Master;
and the router port deleting module is used for deleting the router port corresponding to the existing first network equipment by adding the router port corresponding to the second network equipment again locally when receiving the pim protocol message sent by the second network equipment as the Master based on the configured interface IP address.
10. An electronic device, characterized in that the electronic device comprises: a processor and a memory;
wherein the memory is configured to store machine-executable instructions;
the processor is configured to read and execute the machine executable instructions stored in the memory to implement the method according to any one of claims 1 to 5.
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| CN103227724A (en) * | 2012-08-22 | 2013-07-31 | 杭州华三通信技术有限公司 | Method and device for realizing PIM multicast in VRRP network environment |
| CN108430039A (en) * | 2017-01-20 | 2018-08-21 | 迈普通信技术股份有限公司 | A kind of multicast optimization method, multicast equipment and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227724A (en) * | 2012-08-22 | 2013-07-31 | 杭州华三通信技术有限公司 | Method and device for realizing PIM multicast in VRRP network environment |
| CN108430039A (en) * | 2017-01-20 | 2018-08-21 | 迈普通信技术股份有限公司 | A kind of multicast optimization method, multicast equipment and system |
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