CN111327544A - Stacking system, message transmission method, device, switch and storage medium - Google Patents
Stacking system, message transmission method, device, switch and storage medium Download PDFInfo
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- CN111327544A CN111327544A CN202010081677.8A CN202010081677A CN111327544A CN 111327544 A CN111327544 A CN 111327544A CN 202010081677 A CN202010081677 A CN 202010081677A CN 111327544 A CN111327544 A CN 111327544A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/15—Interconnection of switching modules
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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
- H04L45/302—Route determination based on requested QoS
- H04L45/306—Route determination based on the nature of the carried application
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/25—Routing or path finding in a switch fabric
Abstract
The stacking system comprises at least two switches, wherein each switch is connected through a plurality of physical links, the physical links at least comprise stacking lines and target physical links, the stacking lines are used for transmitting data frames, and the target physical links are used for transmitting control frames. According to the stacking system, the switches are connected through the plurality of physical links, the control frame is transmitted through the target physical link, the control frame is completely isolated from other frame types, the stacking robustness is guaranteed, and the stability of the stacking system is improved. In addition, due to the complete isolation of the control frame from the protocol frame and the data frame, the service message formed by the protocol frame and the data frame can use the whole bandwidth without being divided by the stacked internal control frame, thereby improving the transmission efficiency of the service message.
Description
Technical Field
The present application relates to the field of computer technologies, and in particular, to a stacking system, a message transmission method, a message transmission device, a switch, and a computer-readable storage medium.
Background
The switches in the stacking system are physically and directly connected through stacking lines to form a stacking link, and are divided into control frames, protocol frames and data frames according to different functions of message transmission. In the related art, all messages are transmitted through the stack lines between the switches, and there is no isolation on the physical links. If the control frame is lost, the stack is split, and the stacked system is unstable.
Therefore, how to improve the stability of the stacking system is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The present application aims to provide a stacking system, a message transmission method, a message transmission device, a switch, and a computer-readable storage medium, which improve the stability of the stacking system.
To achieve the above object, the present application provides a stacking system, which includes at least two switches, each of the switches being connected by a plurality of physical links, the physical links including at least a stacking line and a target physical link, the stacking line being used for transmitting data frames, and the target physical link being used for transmitting control frames.
Wherein the stacking line is also used for transmitting protocol frames if the physical link only comprises the stacking line and the target physical link.
Each switch comprises a management port, and the target physical link is a physical link formed by interconnection of the management ports.
In order to achieve the above object, the present application provides a message transmission method applied to a first switch in a stacking system, where the stacking system includes at least two switches, and each switch is connected to another switch through a plurality of physical links, and the method includes:
when a message to be sent exists, determining a target switch of the message to be sent as a second switch;
determining the message type of the message to be sent; the message types comprise a control frame, a data frame and a protocol frame;
and sending the message to be sent to the second switch by using a physical link between the first switch and the second switch and corresponding to the message type.
Wherein, the sending the message to be sent to the second switch by using the physical link between the first switch and the second switch and corresponding to the message type includes:
when the message type of the message to be sent is the control frame, sending the message to be sent to the second switch by using a target physical link between the first switch and the second switch;
and when the message type of the message to be sent is the data frame, sending the message to be sent to the second switch by using a stacking line between the first switch and the second switch.
If the physical link only includes the stacking line and the target physical link, the sending the message to be sent to the second switch by using the physical link between the first switch and the second switch and corresponding to the message type includes:
and when the message type of the message to be sent is the protocol frame, sending the message to be sent to the second switch by using a stacking line between the first switch and the second switch.
Wherein, if the target physical link is a physical link formed by interconnecting the first management port of the first switch and the first management port of the second switch, the method further includes:
when a target message is received, judging whether the target message is received through the first management port;
if the target message is received through the first management port, judging whether the message type of the target message is a control frame; if so, transmitting the target message to a processor in the first switch for processing;
if the target message is received through other ports except the first management port, judging whether the message type of the target message is a control frame; if not, the target message is forwarded to other switches by using the stack port in the first switch.
In order to achieve the above object, the present application provides a message transmission apparatus applied to a first switch in a stacking system, where the stacking system includes at least two switches, each of the switches is connected to each other through a plurality of physical links, and the apparatus includes:
the first determining module is used for determining a target switch of the message to be sent as a second switch when the message to be sent exists;
a second determining module, configured to determine a message type of the message to be sent; the message types comprise a control frame, a data frame and a protocol frame;
and the sending module is used for sending the message to be sent to the second switch by utilizing the physical link between the first switch and the second switch and corresponding to the message type.
To achieve the above object, the present application provides a switch, comprising:
a memory for storing a computer program;
and the processor is used for realizing the steps of the message transmission method when executing the computer program.
To achieve the above object, the present application provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, realizes the steps of the above message transmission method.
According to the scheme, the stacking system comprises at least two switches, wherein each switch is connected through a plurality of physical links, the physical links at least comprise a stacking line and a target physical link, the stacking line is used for transmitting data frames, and the target physical link is used for transmitting control frames.
According to the stacking system, the switches are connected through the plurality of physical links, the control frame is transmitted through the target physical link, the control frame is completely isolated from other frame types, the stacking robustness is guaranteed, and the stability of the stacking system is improved. In addition, due to the complete isolation of the control frame from the protocol frame and the data frame, the service message formed by the protocol frame and the data frame can use the whole bandwidth without being divided by the stacked internal control frame, thereby improving the transmission efficiency of the service message. The application also discloses a message transmission method, a message transmission device, a switch and a computer readable storage medium, and the technical effects can be realized.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a block diagram of a stacking system in the related art;
FIG. 2 is a block diagram of a stacking system according to an exemplary embodiment;
FIG. 3 is a flow diagram illustrating a method of message transmission in accordance with an exemplary embodiment;
FIG. 4 is a flow diagram illustrating another method of message transmission in accordance with an illustrative embodiment;
FIG. 5 is a block diagram illustrating a message transmission device in accordance with an exemplary embodiment;
fig. 6 is a block diagram illustrating a switch in accordance with an example embodiment.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The switches in the stacking system are physically and directly connected through the stacking lines to form stacking links. Referring to fig. 1, fig. 1 is a structural diagram of a stacking system in the related art, as shown in fig. 1, switches in the stacking system are connected by a stacking line, and all messages are transmitted through the stacking line, that is, messages of three frame types: the control frames, protocol frames and data frames are only logically isolated and not on the physical link. If the control frame message has packet loss, the control frame message can cause stack splitting and belongs to the message with the highest priority. If the physical bandwidth is mostly occupied by the data frame or protocol frame message, or a loop occurs, the packet loss or delay of the control frame may be caused, which may cause the instability of the stacking system. In addition, since all frames are transmitted on the same physical link, the control frame and the protocol frame occupy a portion of the data frame bandwidth, and there is a possibility of mutual interference during the transmission of different frame types.
Therefore, in the application, the switches in the stacking system are connected through the plurality of physical links, and the control frame is transmitted through the target physical link, so that the control frame is completely isolated from other frame types, the stacking robustness is ensured, and the stability of the stacking system is improved. In addition, due to the complete isolation of the control frame from the protocol frame and the data frame, the service message formed by the protocol frame and the data frame can use the whole bandwidth without being divided by the stacked internal control frame, thereby improving the transmission efficiency of the service message.
The embodiment of the application provides a stacking system, and the stability of the stacking system is improved. The stacking system includes at least two switches, and referring to fig. 2, a structure diagram of a stacking system according to an exemplary embodiment is shown, where three switches are taken as an example, each of the switches 100 is connected by a plurality of physical links, the physical links include at least a stacking line 21 and a target physical link 22, the stacking line 21 is used for transmitting data frames, and the target physical link 22 is used for transmitting control frames.
In the stacking system, the functions of transmitting messages are divided into control frames, protocol frames and data frames. The control frame mainly carries the status negotiation and maintenance functions between the stacking devices, the Protocol frame is other network Protocol messages received from the environment, such as arp (full Name of chinese: Address Resolution Protocol), dhcp (full Name of chinese: Dynamic Host Configuration Protocol), dns (full Name of chinese: Domain Name System Protocol), etc., and the data frame is other data messages that the user needs to forward two or three layers.
In this embodiment, the switches 100 are connected by a plurality of physical links, where the target physical link 22 is used for transmitting a control frame, so that complete isolation of the control frame from other frame types is achieved, and stability of the stacking system is improved. The target physical link 22 is a physical link formed by interconnecting target ports on the switch 100, where the target ports may be newly added ports on the switch 100, and the target ports may also use original ports on the switch 100 in order not to change the physical structure of the switch 100. Preferably, the destination ports are management ports on the switch 100, that is, each of the switches 100 includes a management port, and the destination physical link 22 is specifically a physical link formed by interconnection of the management ports. The management terminal can manage the switch through the management port, and the management port does not communicate with other ports in order to improve safety. In an implementation, in addition to stacking ports interconnected using stacking lines to form stacking lines 21, the switches 100 in the stacking system are also interconnected through management ports to form target physical links 22. Control frames cannot use stack ports, data frames and protocol frames cannot use management ports.
Since the data frames can be transmitted only through the stacking line 21 between the switches 100, the data frames are transmitted using the stacking line 21 in this embodiment. It should be noted that, in this embodiment, the physical links for transmitting the protocol frames are not specifically limited, and a person skilled in the art may flexibly select the physical links according to actual situations, and if three physical links exist between the switches 100, the physical links except the stacking line 21 and the target physical link 22 may be selected to transmit the protocol frames, so that each physical link only transmits one type of packet, and complete isolation of the packets of each frame type is achieved. If the physical links between the switches 100 include only the stacking line 21 and the target physical link 22, the stacking line 21 is also used for transporting protocol frames in order to achieve complete isolation of control frames from other frame types. The physical isolation of the control frames is achieved by transmitting the control frames over the target physical link 22 and the protocol frames and data frames over the stacking line 21. The protocol frame and the data frame can not influence the control frame, thereby not causing stack division and ensuring stack robustness. The control frame does not occupy the stacking line, and the stacking bandwidth is completely used by the service message, namely the protocol frame and the data frame.
The embodiment of the application provides a message transmission method, which specifically comprises the following steps:
referring to fig. 3, a flowchart of a message transmission method according to an exemplary embodiment is shown, and as shown in fig. 3, the method includes:
s101: when a message to be sent exists, determining a target switch of the message to be sent as a second switch;
the main execution body of this embodiment is any switch in the stacking system provided in the foregoing embodiment, that is, the first switch, and is configured to transmit the message to be sent in the first switch to the second switch.
S102: determining the message type of the message to be sent; the message types comprise a control frame, a data frame and a protocol frame;
in the specific implementation, different message types are determined by different processes, a message sent by the control process is a control frame, and a message sent by the protocol process is a protocol frame.
S103: and sending the message to be sent to the second switch by using a physical link between the first switch and the second switch and corresponding to the message type.
In this embodiment, before sending a message, first, a message type of the message to be sent, that is, a control frame, a data frame, or a protocol frame, is determined, and a physical link corresponding to a message of a different message type is specifically transmitted.
Specifically, when the message type of the message to be sent is the control frame, the message to be sent is sent to the second switch by using a target physical link between the first switch and the second switch; and when the message type of the message to be sent is the data frame, sending the message to be sent to the second switch by using a stacking line between the first switch and the second switch.
If the physical link only comprises the stacking line and the target physical link, when the message type of the message to be sent is the protocol frame, the message to be sent is sent to the second switch by using the stacking line between the first switch and the second switch.
Therefore, the message transmission method provided by the embodiment of the application transmits the message to be transmitted by using the physical link corresponding to the message type of the message to be transmitted, so that the control frame is completely isolated from other frame types, the stacking robustness is ensured, and the stability of the stacking system is improved. In addition, due to the complete isolation of the control frame from the protocol frame and the data frame, the service message formed by the protocol frame and the data frame can use the whole bandwidth without being divided by the stacked internal control frame, thereby improving the transmission efficiency of the service message.
The embodiment of the present application will describe in detail a process of receiving a message, specifically:
referring to fig. 4, a flowchart of another message transmission method according to an exemplary embodiment is shown, and as shown in fig. 4, the method includes:
s201: when a target message is received, judging whether the target message is received through the first management port; if yes, entering S202; if not, the step S203 is entered;
in this embodiment, each switch includes a management port and a stack port, a stack line is formed between the stack ports between the switches for transmitting protocol frames and data frames, and a target physical link is formed between the management ports between the switches for transmitting control frames. When receiving the target message, judging whether the target message is received through the management port, if so, entering S202; if not, the process proceeds to S203.
In a specific implementation, each port on the switch has a corresponding port number, for example, the port number of the management port is generally 23, and it can be determined whether the target packet is received through the management port according to the port number of the received target packet.
S202: and when the message type of the target message is a control frame, transmitting the target message to a processor in the first switch for processing, otherwise, not processing the target message.
When the target message is received through the management port, whether the message type of the target message is a control frame or not is judged, if yes, the target message is transmitted to the processor for processing, and if not, the target message is a data frame or a protocol frame and is not processed due to the fact that a transmitted physical link is wrong.
S203: and when the message type of the target message is a non-control frame, forwarding the target message to other switches by using the stacking port in the first switch, otherwise, not processing the target message.
When a target message is received through a non-management port, the target message is received through a stack port, whether the message type of the target message is a control frame is judged, if not, the target message is a data frame or a protocol frame is judged, the target message is forwarded to other switches through the stack port in the switch, if yes, the target message is a control frame, and the target message is not processed due to the fact that a transmitted physical link is wrong.
In the following, a message transmission apparatus provided in an embodiment of the present application is introduced, and a message transmission apparatus described below and a message transmission method described above may refer to each other.
Referring to fig. 5, a block diagram of a message transmission apparatus according to an exemplary embodiment is shown, and as shown in fig. 5, the message transmission apparatus includes:
a first determining module 501, configured to determine, when a message to be sent exists, a destination switch of the message to be sent as a second switch;
a second determining module 502, configured to determine a message type of the message to be sent; the message types comprise a control frame, a data frame and a protocol frame;
a sending module 503, configured to send the message to be sent to the second switch by using the physical link between the first switch and the second switch and corresponding to the message type.
Therefore, the message transmission device provided in the embodiment of the present application transmits the message to be sent by using the physical link corresponding to the message type of the message to be sent, thereby implementing complete isolation between the control frame and other frame types, ensuring the robustness of stacking, and improving the stability of the stacking system. In addition, due to the complete isolation of the control frame from the protocol frame and the data frame, the service message formed by the protocol frame and the data frame can use the whole bandwidth without being divided by the stacked internal control frame, thereby improving the transmission efficiency of the service message.
On the basis of the foregoing embodiment, as a preferred implementation, the sending module 503 includes:
a first sending unit, configured to send the message to be sent to the second switch by using a target physical link between the first switch and the second switch when the message type of the message to be sent is the control frame;
and a second sending unit, configured to send the message to be sent to the second switch by using a stacking line between the first switch and the second switch when the message type of the message to be sent is the data frame.
On the basis of the above embodiment, as a preferred implementation, if the physical link only includes the stacking line and the target physical link, the sending module 503 includes:
a third sending unit, configured to send the message to be sent to the second switch by using a stacking line between the first switch and the second switch when the message type of the message to be sent is the protocol frame.
On the basis of the foregoing embodiment, as a preferred implementation manner, if the target physical link is a physical link formed by interconnecting a first management port of the first switch and a first management port of the second switch, the apparatus further includes:
the judging module is used for judging whether the target message is received through the first management port or not when the target message is received;
the transmission module is used for judging whether the message type of the target message is a control frame or not if the target message is received through the first management port; if so, transmitting the target message to a processor in the first switch for processing;
a forwarding module, configured to determine whether a packet type of the target packet is a control frame if the target packet is received through a port other than the first management port; if not, the target message is forwarded to other switches by using the stack port in the first switch.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
The present application further provides a switch, and referring to fig. 6, a structure diagram of a switch 600 provided in an embodiment of the present application, as shown in fig. 6, may include a processor 11 and a memory 12. The switch 600 may also include one or more of a multimedia component 13, an input/output (I/O) interface 14, and a communications component 15.
The processor 11 is configured to control the overall operation of the switch 600, so as to complete all or part of the steps in the message transmission method. The memory 12 is used to store various types of data to support the operation at the switch 600, which may include, for example, instructions for any application or method operating on the switch 600, as well as application-related data, such as contact data, messaging, pictures, audio, video, and so forth. The Memory 12 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia component 13 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 12 or transmitted via the communication component 15. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 14 provides an interface between the processor 11 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 15 is used for wired or wireless communication between the switch 600 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G or 4G, or a combination of one or more of them, so that the corresponding Communication component 15 may include: Wi-Fi module, bluetooth module, NFC module.
In an exemplary embodiment, the switch 600 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the message transmission methods described above.
In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the above message transmission method is also provided. For example, the computer readable storage medium may be the memory 12 described above that includes program instructions that are executable by the processor 11 of the switch 600 to perform the message transmission method described above.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A stacking system comprising at least two switches, each of the switches being connected by a plurality of physical links, the physical links including at least a stacking line for transmitting data frames and a destination physical link for transmitting control frames.
2. The stacking system of claim 1, wherein the stacking line is further configured to transport protocol frames if the physical link comprises only the stacking line and the target physical link.
3. The stacking system of claim 1, wherein each switch comprises a management port, and wherein the target physical link is a physical link formed by interconnection of the management ports.
4. A message transmission method, applied to a first switch in a stack system, where the stack system includes at least two switches, and each switch is connected to another switch through a plurality of physical links, the method includes:
when a message to be sent exists, determining a target switch of the message to be sent as a second switch;
determining the message type of the message to be sent; the message types comprise a control frame, a data frame and a protocol frame;
and sending the message to be sent to the second switch by using a physical link between the first switch and the second switch and corresponding to the message type.
5. The message transmission method according to claim 4, wherein the sending the message to be sent to the second switch by using the physical link between the first switch and the second switch corresponding to the message type includes:
when the message type of the message to be sent is the control frame, sending the message to be sent to the second switch by using a target physical link between the first switch and the second switch;
and when the message type of the message to be sent is the data frame, sending the message to be sent to the second switch by using a stacking line between the first switch and the second switch.
6. The message transmission method according to claim 5, wherein if the physical link only includes the stacking line and the target physical link, the sending the message to be sent to the second switch by using the physical link between the first switch and the second switch corresponding to the message type includes:
and when the message type of the message to be sent is the protocol frame, sending the message to be sent to the second switch by using a stacking line between the first switch and the second switch.
7. The message transmission method according to claim 5, wherein if the target physical link is a physical link formed by interconnecting the first management port of the first switch and the first management port of the second switch, the method further includes:
when a target message is received, judging whether the target message is received through the first management port;
if the target message is received through the first management port, judging whether the message type of the target message is a control frame; if so, transmitting the target message to a processor in the first switch for processing;
if the target message is received through other ports except the first management port, judging whether the message type of the target message is a control frame; if not, the target message is forwarded to other switches by using the stack port in the first switch.
8. A message transmission apparatus, applied to a first switch in a stacking system, where the stacking system includes at least two switches, and each switch is connected to another switch through a plurality of physical links, the apparatus comprising:
the first determining module is used for determining a target switch of the message to be sent as a second switch when the message to be sent exists;
a second determining module, configured to determine a message type of the message to be sent; the message types comprise a control frame, a data frame and a protocol frame;
and the sending module is used for sending the message to be sent to the second switch by utilizing the physical link between the first switch and the second switch and corresponding to the message type.
9. A switch, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the message transmission method according to any of claims 4 to 7 when executing the computer program.
10. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the message transmission method according to any one of claims 4 to 7.
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Application publication date: 20200623 |