CN106330781B - Method, device and switch for separating protocol control and forwarding link of stacking system - Google Patents

Abstract

The present invention provides a method, a device and a switch for separating protocol control and forwarding links of a stacking system, and relates to the technical field of communications. The method of the present invention includes: sending a stack neighbor discovery message through a configured stack port; determining a protocol control link and a data forwarding link of the switch corresponding to the stack neighbor according to the received stack neighbor response message of the stack neighbor discovery message The logarithm of the path; the protocol control link and the data forwarding link are separated according to the logarithm of the protocol control link and the data forwarding link corresponding to the stack neighbor of the switch and the preset rule. The embodiment of the present invention solves the problem of mutual interference between the links due to the use of the same physical link for the data forwarding link and the protocol control link of the existing stacking system.

Description

Stacking system protocol control and forwarding link separation method, device and switch

technical field

The present invention relates to the technical field of communications, and in particular, to a method, a device and a switch for separating stacking system protocol control and forwarding links.

Background technique

With the vigorous development of government and enterprise networks, switches are widely used, and switches are required in the market to be combined like building blocks to meet different network scales and establish a stacking system.

However, in the establishment of the current stack system, the data forwarding link and the protocol control link often use the same physical link. In the actual use process, service packets and protocol packets inevitably affect each other, resulting in service packet loss or stacking. system instability, etc.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a method, device and switch for separating the protocol control and forwarding links of a stacking system. mutual interference.

In order to achieve the above object, an embodiment of the present invention provides a method for separating protocol control and forwarding links of a stacking system, which is applied to a switch that has enabled the stacking mode, including:

Send stack neighbor discovery messages through the configured stack port;

According to the received stack neighbor response message of the stack neighbor discovery message, determine the logarithm of the protocol control link and the data forwarding link of the switch corresponding to the stack neighbor;

The protocol control link and the data forwarding link are separated according to the logarithm of the protocol control link and the data forwarding link corresponding to the stack neighbor of the switch and a preset rule.

Wherein, according to the received stack neighbor response message of the stack neighbor discovery message, determining the logarithm of the protocol control link and data forwarding link of the switch corresponding to the stack neighbor specifically includes:

Acquire the hardware address MAC in the stack neighbor response message of the received stack neighbor discovery message;

According to the MAC, determine the number of stack neighbors that establish a stack with the switch;

According to the number of the stack neighbors, the number of pairs of protocol control links and data forwarding links of the switch corresponding to the stack neighbors is determined.

Wherein, separating the protocol control link and the data forwarding link according to the logarithm of the protocol control link and the data forwarding link of the stacking neighbor corresponding to the switch and a preset rule specifically includes:

Obtain the port information of each stacking neighbor according to the logarithm of the protocol control link and the data forwarding link of the stacking neighbor corresponding to the switch; wherein, the port information includes the number of ports, bandwidth, ID and traffic;

When the number of ports of the stacking neighbor is greater than a preset value, according to a preset rule, select a preset number of ports in the ports of the stacking neighbor as protocol control ports;

Selecting the remaining ports of the stack neighbors as data forwarding ports;

The protocol control link and the data forwarding link are separated according to the selected protocol control port and data forwarding port.

Wherein, according to a preset rule, selecting one of the ports of the stack neighbors as the protocol control port specifically includes:

According to the bandwidth in the port information, the port with the smallest bandwidth among the stack neighbors is selected as the protocol control port, and if the bandwidths of the ports are the same, the port with the smallest ID is selected as the protocol control port; or

According to the traffic volume in the port information, select the port with the largest traffic volume among the stack neighbors as the protocol control port, and if the traffic volume of the ports is the same, select the port with the smallest ID as the protocol control port; or

According to the ID in the port information, the port with the smallest ID in the stack neighbor is selected as the protocol control port.

Wherein, separating the protocol control link and the data forwarding link according to the logarithm of the protocol control link and the data forwarding link of the stacking neighbor corresponding to the switch and a preset rule further includes:

Obtaining the port selection information of the stacking neighbor, wherein the port selection information can know the protocol control port of the switch selected by the stacking neighbor;

When the protocol control port selected by the switch and the protocol control port selected by the stack neighbor are not corresponding ports, the port of the protocol control link is determined according to the MAC sizes of the switch and the stack neighbor.

Wherein, separating the protocol control link and the data forwarding link according to the logarithm of the protocol control link and the data forwarding link of the stacking neighbor corresponding to the switch and a preset rule further includes:

When the number of ports of the stack neighbor is a preset value, the port is selected as a protocol control port and a data forwarding port.

In order to achieve the above object, an embodiment of the present invention also provides a device for separating protocol control and forwarding links in a stacking system, which is applied to a switch that has enabled the stacking mode, including:

The sending module is used to send the stack neighbor discovery message through the configured stack port;

a determining module, configured to determine the logarithm of the protocol control link and the data forwarding link of the switch corresponding to the stack neighbor according to the received stack neighbor response message of the stack neighbor discovery message;

The separation module is configured to separate the protocol control link and the data forwarding link according to the logarithm of the protocol control link and the data forwarding link corresponding to the stack neighbor of the switch and a preset rule.

Wherein, the determining module includes:

a first acquiring submodule, configured to acquire the hardware address MAC in the stack neighbor response message of the received stack neighbor discovery message;

a first determining submodule, configured to determine, according to the MAC, the number of stack neighbors that establish stacking with the switch;

The second determination submodule is configured to determine, according to the number of the stack neighbors, the number of pairs of protocol control links and data forwarding links of the switch corresponding to the stack neighbors.

Wherein, the separation module includes:

The second obtaining sub-module is configured to obtain the port information of each stacking neighbor according to the logarithm of the protocol control link and the data forwarding link of the stacking neighbor corresponding to the switch; wherein, the port information includes the number of ports and the bandwidth , ID and business volume;

a first selection submodule, configured to select a preset number of ports among the ports of the stack neighbor as protocol control ports according to a preset rule when the number of ports of the stack neighbor is greater than a preset value;

a second selection submodule, configured to select the remaining ports of the stack neighbors as data forwarding ports;

The separation sub-module is used for separating the protocol control link and the data forwarding link according to the selected protocol control port and data forwarding port.

Wherein, the first selection submodule includes:

A first selection unit, configured to select, according to the bandwidth in the port information, the port with the smallest bandwidth in the stack neighbor as the protocol control port, and if the bandwidths of the ports are the same, select the port with the smallest ID as the protocol control port; or

The second selection unit is configured to select the port with the most traffic in the stack neighbors as the protocol control port according to the traffic in the port information, and if the traffic of the ports is the same, select the port with the smallest ID as the protocol control port ;or

The third selection unit is configured to select, according to the ID in the port information, the port with the smallest ID among the stack neighbors as the protocol control port.

Wherein, the separation module further includes:

a third acquiring submodule, configured to acquire port selection information of the stacking neighbor, wherein the port selection information can know the protocol control port of the switch selected by the stacking neighbor;

A third determination submodule, configured to determine the protocol control chain according to the MAC size of the switch and the stack neighbor when the protocol control port selected by the switch and the protocol control port selected by the stack neighbor are not corresponding ports road port.

Wherein, the separation module further includes:

The third selection sub-module is configured to select the port as a protocol control port and a data forwarding port when the number of ports of the stack neighbor is a preset value.

To achieve the above object, an embodiment of the present invention further provides a switch, the switch has a stacking mode enabled, and includes the above-mentioned device for stacking system protocol control and forwarding link separation.

The beneficial effects of the above-mentioned technical solutions of the present invention are as follows:

In the method of the embodiment of the present invention, a stack neighbor discovery message is sent through a configured stack port to discover the stack neighbor of the switch, and after receiving the returned stack neighbor response message, the protocol control chain of the switch corresponding to the stack neighbor can be determined. Then separate the protocol control link and the data forwarding link according to the logarithm of the protocol control link and the data forwarding link and the preset rules, and establish the protocol and data forwarding protocol through stacking respectively. deal with. The protocol control link and the data forwarding link are automatically separated, the two are decoupled, and the mutual interference between the links is avoided.

Description of drawings

Fig. 1 shows the step flow chart of the method of the embodiment of the present invention;

FIG. 2 shows a flowchart 1 of the specific steps of the method according to the embodiment of the present invention;

FIG. 3 shows a flowchart 2 of the specific steps of the method according to the embodiment of the present invention;

Fig. 4 shows the stacking system after applying the method of the embodiment of the present invention;

FIG. 5 shows a schematic structural diagram of an apparatus according to an embodiment of the present invention.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

The present invention uses the same physical link for the existing data forwarding link and the protocol control link. In the actual use process, the service message and the protocol message inevitably affect each other, resulting in loss of service packets or failure of the stacking system. To solve problems such as stability, a method for separating protocol control and forwarding links in a stacking system is provided. By automatically separating the protocol control link and data forwarding link of the stacking system, the two are decoupled and mutual interference between the links is avoided.

As shown in FIG. 1 , a method for separating protocol control and forwarding links of a stacking system according to an embodiment of the present invention is applied to a switch, and the switch has enabled the stacking mode, including:

Step 11: Send a stack neighbor discovery message through the configured stack port;

Since the switch has enabled the stacking mode, the switch will configure the stacking ports. In this way, the stack neighbor discovery message can be sent through the stacking ports to discover one or more switches in the same stacking system as the switch, and the discovered switches can be called the native's stacking neighbor.

Step 12, according to the received stack neighbor response message of the stack neighbor discovery message, determine the logarithm of the protocol control link and the data forwarding link of the switch corresponding to the stack neighbor;

After receiving the stack neighbor discovery message, the stack neighbor will return a stack neighbor response message. Through the stack neighbor response message, the number of protocol control links and data forwarding links of the switch corresponding to the stack neighbor can be determined. Neighbors are configured with a pair of protocol control links and data forwarding links. Of course, in general, there is only one protocol control link, but not necessarily one data forwarding link, but may be multiple.

Step 13: Separate the protocol control link and the data forwarding link according to the logarithm of the protocol control link and the data forwarding link corresponding to the stack neighbor of the switch and a preset rule.

According to the above steps, the embodiment of the present invention sends a stack neighbor discovery message through the configured stack port to discover the stack neighbor of the switch. After receiving the returned stack neighbor response message, the protocol of the switch corresponding to the stack neighbor can be determined. The logarithm of the control link and the data forwarding link, and then separate the protocol control link and the data forwarding link according to the logarithm of the protocol control link and the data forwarding link and the preset rules, and establish the protocol and data through the stack. Forwarding protocol processing. In this way, as shown in Fig. 4, the adjacent switches 1 and 2 of the stacking system can respectively realize the protocol control link and the data forwarding link through different physical links, and automatically separate the protocol control link and the data forwarding link to realize The decoupling of the two avoids mutual interference between the links.

Wherein, the stack neighbor discovery message may also be implemented through a known protocol neighbor discovery protocol LLDP.

Further, as shown in Figure 2, step 12 specifically includes:

Step 121, acquiring the hardware address MAC in the stack neighbor response message of the received stack neighbor discovery message;

In step 11, a stack neighbor discovery message will be sent through the configured stack port to discover the stack neighbor of the switch. Therefore, after receiving the stack neighbor discovery message, the stack neighbor of the switch will return a stack neighbor response message, and In the response message, the MAC of the stack neighbor that returns the stack neighbor response message can be obtained. If no stack neighbor response message is received, an alarm will be issued, prompting the user to confirm that the ports between the switches are connected.

Step 122, according to the MAC, determine the number of stack neighbors that establish a stack with the switch;

It should be understood that each switch in the stacking system has a MAC, so the number of stack neighbors with the local machine can be determined by the number of MACs.

Step 123: Determine, according to the number of the stack neighbors, the number of pairs of protocol control links and data forwarding links of the switch corresponding to the stack neighbors.

No matter how many stack neighbors the switch has, there is only one pair of protocol control links and data forwarding links for each stack neighbor. Therefore, the protocol control link and data forwarding link of the switch corresponding to the stack neighbor can be determined according to the number of stack neighbors. The logarithm of the road.

Take the stack system of switch A, switch B, and switch C as an example. Switch A sends stack neighbor discovery messages through stack ports. After receiving the stack neighbor discovery message, B and C return a stack neighbor reply message (carrying the MAC of the switch that sent the message) to A. A receives 5 stack neighbor reply messages, 2 carry B's MAC, and 3 carry C By judging that there are two types of MACs received, A determines that there are two stacking neighbors, thereby determining that there are two pairs of protocol control links and data forwarding links.

In this embodiment of the present invention, there may be a large number of configured stack ports. If the stack neighbor discovery message is sent through the stack port, if the port is connected, the response message returned by the stack neighbor can be received, and it is necessary to determine which stack neighbor sent the stack neighbor from the numerous response messages. It can be determined by MAC, the number of stack neighbors, and the number of pairs of protocol control links and data forwarding links of the switch corresponding to the stack neighbors.

Further, as shown in Figure 3, step 13 specifically includes:

Step 131: Obtain the port information of each stacking neighbor according to the logarithm of the protocol control link and the data forwarding link of the stacking neighbor corresponding to the switch; wherein, the port information includes the number of ports, bandwidth, ID and traffic volume ;

Knowing the logarithm of the protocol control link and data forwarding link of the switch corresponding to the stack neighbor, you can determine which ports each stack neighbor has, and you can obtain the port information of each stack neighbor, such as the number of ports, bandwidth, ID and Traffic, etc., ID refers to the port number of the port on the switch to which it belongs.

Step 132, when the number of ports of the stack neighbor is greater than a preset value, according to a preset rule, select a preset number of ports in the ports of the stack neighbor as protocol control ports;

In general, only one protocol control link is required, while the data forwarding link is often not required. When the number of ports connected between the stack neighbor and the local machine is the same as the required number of protocol control links, there is no need for link separation. Only when the number of ports in the stack neighbor is greater than a preset value, it is necessary to set the According to the rule, a preset number of ports in the ports of the stack neighbors are selected as the protocol control ports. The preset value is set according to the requirements of the protocol control link, and the preset value is also the value of the preset number.

Step 133, selecting the remaining ports of the stack neighbors as data forwarding ports;

After the protocol control port is selected, the remaining ports can be used as data forwarding ports. They can use the link aggregation control protocol LACP scheduling between them.

Step 134: Separate the protocol control link and the data forwarding link according to the selected protocol control port and data forwarding port.

After selection, the protocol control port and data forwarding port of the stack neighbor are determined, and the protocol control link and data forwarding link can be realized through the physical link of the corresponding port, and the protocol control link and data forwarding link can be separated.

Continuing the above example, A determines that it has two stack neighbors, so after determining that there are two pairs of protocol control links and data forwarding links, it can also determine that the five ports A1-A5 of A correspond to the two ports B1 and B2 of B. , C's three ports C1, C2, C3, and then obtain the port information of each stack neighbor. Assuming that the port correspondence between A and C is A1-C1, A2-C2, A3-C3, to obtain the port information of the three ports of C, the default value is 1 at this time, and then according to the preset rules, you can Select one port among C1, C2, and C3 as the protocol control port, assuming that it is C1, and the remaining two ports, C2 and C3, can be used as data forwarding ports. C1 corresponds to A1, the link A1C1 can be set as the protocol control link, and the links A2C2 and A3C3 are set as the data forwarding link, thus realizing the separation of the protocol control link and the data forwarding link.

In the embodiment of the present invention, the port information of each stack neighbor is obtained according to the logarithm of the protocol control link and the data forwarding link of the switch corresponding to the stack neighbor, and the port of each stack neighbor is selected. According to the preset rules, the protocol control port and data forwarding port of the local machine and the stack neighbor are selected, and the protocol control link and the data forwarding link are separated to realize the decoupling of the two and avoid the interference between the links.

Further, step 132 specifically includes:

Step 132a, according to the bandwidth in the port information, select the port with the smallest bandwidth among the stack neighbors as the protocol control port, and if the bandwidths of the ports are the same, select the port with the smallest ID as the protocol control port; or

Step 132b, according to the traffic in the port information, select the port with the most traffic in the stack neighbor as the protocol control port, and if the traffic of the ports is the same, select the port with the smallest ID as the protocol control port; or

Step 132c, according to the ID in the port information, select the port with the smallest ID among the stack neighbors as the protocol control port.

Port information includes bandwidth, ID, and traffic. The port with the smallest bandwidth can be selected as the protocol control port. Of course, if the traffic of the ports is the same, the port with the smallest ID is selected as the protocol control port; the port with the most traffic can be selected. The port is the protocol control port. Of course, if the traffic of the ports is the same, the port with the smallest ID is selected as the protocol control port; you can also directly select the port with the smallest ID as the protocol control port. Of course, the preset rule is not limited to the above-mentioned situation, and may also be a weighted combination of one or more of the above-mentioned standards, or may be set according to other port information, which will not be listed one by one here.

It should also be known that in a stacking system, the switches are stacking neighbors of each other, and each switch selects among the other's ports, so it may appear that, for example, A may choose B's port B2 as the protocol control port, and A corresponds to B2's port. The port is A5, but B chooses A's port A4 as the protocol control port, and there will inevitably be a conflict of selection. Therefore, further, step 13 specifically includes:

Step 135: Obtain the port selection information of the stacking neighbor, wherein the port selection information can know the protocol control port of the switch selected by the stacking neighbor;

Step 136, when the protocol control port selected by the switch and the protocol control port selected by the stacking neighbor are not corresponding ports, determine the port of the protocol control link according to the MAC size of the switch and the stacking neighbor.

By obtaining the port selection information of the stack neighbor of the local machine, we can know whether the protocol control port selected by the stack neighbor corresponds to the protocol control port selected by the local machine. The two are unified, and the MAC size of the local machine and the stack neighbor can be compared to determine which one is selected. For example, the port where the link selected by the switch with the smaller MAC address is located is the control port. Of course, judging by the MAC size is only one implementation method, and can also be implemented by other methods such as the size of the traffic, which are not listed here, and can be set in advance by the staff as needed.

It can be seen from the above content that when the number of ports connected to the stack neighbor and the local machine is the same as the required number of protocol control links, there is no need for link separation. Then, at this time, step 13 specifically includes:

Step 137: When the number of ports of the stack neighbor is a preset value, select the port as a protocol control port and a data forwarding port.

Since the number of ports that the stack neighbor communicates with the local machine is the same as the number required for the protocol control link, the data forwarding link has to share the physical link with the protocol control link, and the port is the protocol control port and the data forwarding port.

To sum up, the method for separating the protocol control and forwarding links of the stacking system according to the embodiment of the present invention automatically separates the protocol control chain under certain conditions without increasing the difficulty of configuration by learning various information of the ports of the stacking neighbors. It can realize the decoupling of the protocol control link and the data forwarding link, and avoid the mutual interference between the links.

As shown in FIG. 5 , an embodiment of the present invention further provides an apparatus for separating stacking system protocol control and forwarding links, which is applied to a switch that has enabled the stacking mode, including:

The sending module 10 is configured to send the stack neighbor discovery message through the configured stack port;

A determination module 20, configured to determine, according to the received stack neighbor response message of the stack neighbor discovery message, the logarithm of the protocol control link and the data forwarding link of the switch corresponding to the stack neighbor;

The separation module 30 is configured to separate the protocol control link and the data forwarding link according to the logarithm of the protocol control link and the data forwarding link corresponding to the stack neighbor of the switch and a preset rule.

Wherein, the determining module includes:

a first acquiring submodule, configured to acquire the hardware address MAC in the stack neighbor response message of the received stack neighbor discovery message;

a first determining submodule, configured to determine, according to the MAC, the number of stack neighbors that establish stacking with the switch;

The second determining submodule is configured to determine, according to the number of the stacking neighbors, the number of pairs of protocol control links and data forwarding links of the switch corresponding to the stacking neighbors.

Wherein, the separation module includes:

The second obtaining sub-module is configured to obtain the port information of each stacking neighbor according to the logarithm of the protocol control link and the data forwarding link of the stacking neighbor corresponding to the switch; wherein, the port information includes the number of ports and the bandwidth , ID and business volume;

a first selection submodule, configured to select a preset number of ports in the ports of the stack neighbor as protocol control ports according to a preset rule when the number of ports of the stack neighbor is greater than a preset value;

a second selection submodule, configured to select the remaining ports of the stack neighbors as data forwarding ports;

The separation sub-module is used for separating the protocol control link and the data forwarding link according to the selected protocol control port and data forwarding port.

Wherein, the first selection submodule includes:

A first selection unit, configured to select, according to the bandwidth in the port information, the port with the smallest bandwidth in the stack neighbor as the protocol control port, and if the bandwidths of the ports are the same, select the port with the smallest ID as the protocol control port; or

The second selection unit is configured to select the port with the most traffic in the stack neighbors as the protocol control port according to the traffic in the port information, and if the traffic of the ports is the same, select the port with the smallest ID as the protocol control port ;or

The third selection unit is configured to select, according to the ID in the port information, the port with the smallest ID among the stack neighbors as the protocol control port.

Wherein, the separation module further includes:

a third acquiring submodule, configured to acquire port selection information of the stacking neighbor, wherein the port selection information can know the protocol control port of the switch selected by the stacking neighbor;

A third determination submodule, configured to determine the protocol control chain according to the MAC size of the switch and the stack neighbor when the protocol control port selected by the switch and the protocol control port selected by the stack neighbor are not corresponding ports road port.

Wherein, the separation module further includes:

The third selection sub-module is configured to select the port as a protocol control port and a data forwarding port when the number of ports of the stack neighbor is a preset value.

The sending module of the device sends a stack neighbor discovery message through the configured stack port to discover the stack neighbor of the switch. After receiving the returned stack neighbor response message, the determination module can determine the protocol control chain of the switch corresponding to the stack neighbor. Then the separation module separates the protocol control link and the data forwarding link according to the logarithm of the protocol control link and the data forwarding link and the preset rules, and establishes the protocol and data respectively through the stack. Forwarding protocol processing. In this way, this embodiment automatically separates the protocol control link and the data forwarding link, realizes the decoupling of the two, and avoids mutual interference between the links.

In this embodiment of the present invention, the modules may be implemented in software so as to be executed by various types of processors. For example, an identified executable code module may comprise one or more physical or logical blocks of computer instructions, which may be structured as objects, procedures, or functions, for example. Nonetheless, the executable code of the identified module need not be physically located together, but may include different instructions stored in different bits that, when logically combined, constitute the module and implement the specification of the module Purpose.

It should be noted that this device is a device that applies the above-mentioned method for stacking system protocol control and forwarding link separation, and the implementation of the above-mentioned method is applicable to this device, and the same technical effect can also be achieved.

An embodiment of the present invention also provides a switch, the switch has a stacking mode enabled, and includes the above-mentioned apparatus for stacking system protocol control and forwarding link separation.

The switch can send a stack neighbor discovery message through the configured stack port to discover the stack neighbor of the switch. After receiving the returned stack neighbor response message, it can determine the protocol control link and data forwarding of the switch corresponding to the stack neighbor. The logarithm of the link is then separated according to the logarithm of the protocol control link and the data forwarding link and the preset rules, and the protocol control link and the data forwarding link are separately processed through the stack establishment protocol and the data forwarding protocol. In this way, this embodiment automatically separates the protocol control link and the data forwarding link, realizes the decoupling of the two, and avoids mutual interference between the links.

It should be noted that the switch includes the above-mentioned device for separating the stacking system protocol control and the forwarding link, and the implementation method of the above-mentioned device is applicable to the switch, and the same technical effect can also be achieved.

The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (13)

1. A method for separating protocol control and forwarding link of a stack system, applied to a switch, wherein the switch has opened a stack mode, the method comprising:

sending a stacking neighbor discovery message through the configured stacking port;

determining pairs of protocol control links and data forwarding links of the stacking neighbors corresponding to the switch according to the received stacking neighbor response messages of the stacking neighbor discovery messages;

and separating the protocol control link and the data forwarding link according to the logarithm of the protocol control link and the data forwarding link of the stacking neighbor corresponding to the switch and a preset rule.

2. The method according to claim 1, wherein the determining the logarithm of the protocol control link and the data forwarding link of the stack neighbor corresponding to the switch according to the stack neighbor response message of the stack neighbor discovery message includes:

acquiring a hardware address MAC in a stacking neighbor response message of the received stacking neighbor discovery message;

determining the number of stack neighbors to establish a stack with the switch according to the MAC;

and determining the logarithm of the protocol control link and the data forwarding link of the stacking neighbor corresponding to the switch according to the number of the stacking neighbors.

3. The method for separating protocol control and forwarding link in a stacking system according to claim 1, wherein the separating the protocol control link and the data forwarding link according to the logarithm of the protocol control link and the data forwarding link of the stacking neighbor corresponding to the switch and a preset rule specifically includes:

acquiring port information of each stacking neighbor according to the logarithm of a protocol control link and a data forwarding link of the stacking neighbor corresponding to the switch; wherein the port information includes the number of ports, bandwidth, ID, and traffic volume;

when the number of the ports of the stacking neighbor is larger than a preset value, selecting a preset number of the ports of the stacking neighbor as protocol control ports according to a preset rule;

selecting the rest ports of the stacking neighbors as data forwarding ports;

and separating the protocol control link and the data forwarding link according to the selected protocol control port and the selected data forwarding port.

4. The method for protocol control and forwarding link separation in a stacking system according to claim 3, wherein the selecting a preset number of ports from the ports of the stacking neighbor as protocol control ports according to a preset rule specifically includes:

selecting the port with the minimum bandwidth in the stacking neighbor as a protocol control port according to the bandwidth in the port information, and selecting the port with the minimum ID as the protocol control port if the bandwidth of the ports is the same; or

Selecting the port with the most traffic in the stacking neighbor as a protocol control port according to the traffic in the port information, and selecting the port with the smallest ID as the protocol control port if the traffic of the ports is the same; or

And selecting the port with the smallest ID in the stacking neighbor as a protocol control port according to the ID in the port information.

5. The method for separating protocol control and forwarding link in a stacking system according to claim 3, wherein the protocol control link and the data forwarding link are separated according to a preset rule and a logarithm of the protocol control link and the data forwarding link of the stacking neighbor corresponding to the switch, and specifically, the method further comprises:

acquiring port selection information of the stacking neighbor, wherein the port selection information can know a protocol control port of the switch selected by the stacking neighbor;

and when the protocol control port selected by the switch and the protocol control port selected by the stacking neighbor are not corresponding ports, determining the port of a protocol control link according to the MAC sizes of the switch and the stacking neighbor.

6. The method for separating protocol control and forwarding link in a stacking system according to claim 3, wherein the protocol control link and the data forwarding link are separated according to a preset rule and a logarithm of the protocol control link and the data forwarding link of the stacking neighbor corresponding to the switch, and specifically, the method further comprises:

and when the number of the ports of the stacking neighbors is a preset value, selecting the ports as protocol control ports and data forwarding ports.

7. An apparatus for separating protocol control and forwarding links of a stack system, applied to a switch that has an open stack mode, comprising:

a sending module, configured to send a stacking neighbor discovery message through a configured stacking port;

a determining module, configured to determine pairs of protocol control links and data forwarding links of the stacking neighbors corresponding to the switch according to the received stacking neighbor response message of the stacking neighbor discovery message;

and the separation module is used for separating the protocol control link and the data forwarding link according to the logarithm of the protocol control link and the data forwarding link of the stacking neighbor corresponding to the switch and a preset rule.

8. The stacked system protocol control and forwarding link separation apparatus of claim 7, wherein the determining module comprises:

the first acquisition submodule is used for acquiring a hardware address MAC in a stacking neighbor response message of the received stacking neighbor discovery message;

the first determining submodule is used for determining the number of stacking neighbors for establishing stacking with the switch according to the MAC;

and the second determining submodule is used for determining the logarithm of the protocol control link and the data forwarding link of the stacking neighbor corresponding to the switch according to the number of the stacking neighbors.

9. The stacked system protocol control and forwarding link separation apparatus of claim 7, wherein the separation module comprises:

the second obtaining submodule is used for obtaining the port information of each stacking neighbor according to the logarithm of the protocol control link and the data forwarding link of the stacking neighbor corresponding to the switch; wherein the port information includes the number of ports, bandwidth, ID, and traffic volume;

the first selection submodule is used for selecting a preset number of ports in the ports of the stacking neighbors as protocol control ports according to a preset rule when the number of the ports of the stacking neighbors is larger than a preset value;

the second selection submodule is used for selecting the rest ports of the stacking neighbors as data forwarding ports;

and the separation sub-module is used for separating the protocol control link and the data forwarding link according to the selected protocol control port and the selected data forwarding port.

10. The stacked system protocol control and forwarding link decoupling apparatus of claim 9, wherein the first selection submodule comprises:

a first selecting unit, configured to select, according to the bandwidth in the port information, a port with the smallest bandwidth in the stacking neighbor as a protocol control port, and if the bandwidths of the ports are the same, select the port with the smallest ID as the protocol control port; or

A second selecting unit, configured to select, according to the traffic in the port information, a port with the largest traffic in the stacking neighbor as a protocol control port, and if the traffic of the ports is the same, select a port with the smallest ID as a protocol control port; or

And the third selecting unit is used for selecting the port with the smallest ID in the stacking neighbor as a protocol control port according to the ID in the port information.

11. The stacked system protocol control and forwarding link separation apparatus of claim 9, wherein the separation module further comprises:

a third obtaining submodule, configured to obtain port selection information of the stacking neighbor, where the port selection information indicates a protocol control port of the switch selected by the stacking neighbor;

and the third determining submodule is used for determining the port of the protocol control link according to the MAC sizes of the switch and the stacking neighbor when the protocol control port selected by the switch and the protocol control port selected by the stacking neighbor are not corresponding ports.

12. The stacked system protocol control and forwarding link separation apparatus of claim 9, wherein the separation module further comprises:

and the third selection submodule is used for selecting the ports as protocol control ports and data forwarding ports when the number of the ports of the stacking neighbors is a preset value.

13. A switch having stack mode enabled, comprising a stack system protocol control and forwarding link separation apparatus according to any of claims 7 to 12.

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