CN112217658A - Stacking and splitting processing method and device - Google Patents
Stacking and splitting processing method and device Download PDFInfo
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Abstract
The embodiment of the application discloses a stacking splitting processing method and device, which are used for reducing service interruption time in a stacking splitting process, improving flow switching performance and improving user experience. Firstly, a first stacking member device acquires the working state of an uplink service port of each stacking member device in a stacking system, wherein the uplink service port refers to the service port of each stacking member device in the stacking system connected with an upstream device, and the stacking system comprises the first stacking member device and a second stacking member device; secondly, the first stacking member device determines a target device according to the working state of the uplink service port of each stacking member device in the stacking system; finally, when the first stacker member device is determined to be the target device, the first stacker member device performs a port closing operation, wherein the port closing operation includes switching all the service ports of the first stacker member device that are in the operating state to the non-operating state.
Description
Technical Field
The embodiment of the application relates to the technical field of stacking, in particular to a stacking splitting processing method and device.
Background
The stacking system is a logic system formed by a plurality of devices through a stacking protocol, and is presented as a logic device to the outside, wherein the plurality of devices forming the stacking system are called stacking member devices, and links mutually connected among the stacking member devices are called stacking links. If the stacking link fails, stacking splitting of the stacking system is caused, so that the stacking member devices are externally represented as different devices.
When the stacking system is split due to the failure of the stacking link, the stacking system is not a logic device but a plurality of different devices, so that the traffic entering the stacking system cannot be forwarded normally, and the service is interrupted. Traffic can resume normal forwarding after the stack split is complete.
In the current stack splitting processing mode, the stack splitting processing consumes a long time, which causes a long service interruption time and poor user experience.
Disclosure of Invention
In order to solve the foregoing technical problem, embodiments of the present application provide a method and an apparatus for processing stack splitting, so as to reduce service interruption time during a stack splitting process, improve traffic switching performance, and improve user experience.
In a first aspect, an embodiment of the present application provides a stack splitting processing method, which is applied to a stack splitting scenario. First, a first stacking member device obtains a working state of an uplink service port of each stacking member device in a stacking system, where the uplink service port refers to a service port of each stacking member device in the stacking system connected to an upstream device, and the stacking system includes the first stacking member device and a second stacking member device. Secondly, the first stacking member device determines a target device according to the working state of the uplink service port of each stacking member device in the stacking system; finally, when the first stacker member device is determined to be the target device, the first stacker member device performs a port closing operation, wherein the port closing operation includes switching all the service ports of the first stacker member device that are in the operating state to the non-operating state. Optionally, the above-mentioned off-port operations include, but are not limited to: error-down operation. Optionally, the above-mentioned gate port operation may further include switching all the management ports of the first stacker member device in the operating state to the non-operating state.
According to the embodiment of the application, the target equipment is determined according to the working state of the uplink service port of each stacking member equipment in the stacking system, and the port closing operation is executed on the target equipment, so that the service port in the working state is switched to the non-working state. Therefore, when the stack is split, the flow entering the stack system can be effectively prevented from entering the target equipment and being incapable of being forwarded through the uplink port, so that the flow loss is reduced, the flow forwarding time delay is reduced, the service interruption time in the stack splitting process is reduced, the flow switching performance in the stack splitting process is improved, and the user experience is improved.
In some possible implementation manners of the first aspect, the obtaining, by the first stacking member device, the working state of the uplink service port of each stacking member device in the stacking system may specifically include: the method comprises the steps that a first stacking member device receives a dual-active detect (DAD) protocol message sent by a second stacking member device, wherein the DAD protocol message carries the working state of an uplink service port of the second stacking member device; and the first stacking member device monitors the working state of the uplink service port of the first stacking member device. Optionally, the DAD protocol packet may use a newly added field to carry the working state of the uplink service port, and specifically, may use a part of the original reserved field to carry the working state of the uplink service port. In the implementation manner, the working state of the uplink service port of the second stacking member device is obtained by using the information-carrying manner of the DAD protocol packet, and the working state of the uplink service port can be accurately and timely obtained, so that the accuracy of target device judgment can be improved by using the information-carrying manner of the DAD protocol packet, thereby realizing the purposes of reducing service interruption time in the stacking splitting process, improving flow switching performance in the stacking splitting process, and improving user experience.
In some possible implementations of the first aspect, the method may further include: when the stacking system is subjected to stacking splitting, the first stacking member device switches the sending mode of the DAD protocol message to a rapid message sending mode. In a stack system, the DAD protocol packet is sent periodically, and optionally, the switching of the sending mode of the DAD protocol packet to the fast messaging mode may specifically include switching the sending period of the DAD protocol packet from 1s to 100 ms. In the possible implementation mode, the DAD protocol message is sent by triggering the rapid message sending mode, so that the DAD protocol message at the millisecond level can be triggered to be sent, and the processing speed of stack splitting is improved.
In some possible implementation manners of the first aspect, the DAD protocol packet may further carry a failure flag, which is used to indicate whether the second stack member device is marked as a failed device. Similar to the working state of the uplink service port carried in the DAD protocol packet, a part of reserved fields may be used to carry the fault flag. In this possible implementation manner, by newly adding a fault flag in the DAD protocol packet, the fault flag can be used to perform dual-master detection and judgment, so as to improve the processing speed of stack splitting.
In some possible implementation manners of the first aspect, the first stacking member device takes, as a target device, a stacking member device in which all uplink service ports are in a non-operating state; if there is no stacking member device whose uplink service port is in a non-operating state, the first stacking member device sequentially compares the stacking priorities and Media Access Control (MAC) addresses of all the stacking member devices until a target device is determined, specifically: when no stacking member device with all uplink service ports in a non-working state exists, comparing the stacking priorities of all stacking member devices, and determining the stacking member device with a lower stacking priority as a target device; and when the stacking priorities of all the stacking member devices are the same, comparing the MAC addresses of all the stacking member devices, and determining the target device according to the comparison result. For example, a stack member device with a larger or smaller MAC address may be determined as the target device. It should be appreciated that different stack member devices have different MAC addresses, and thus the target device may be determined by the above scheme. In this possible implementation manner, the target device is determined in sequence by the working state of the uplink service port, the stacking priority and the MAC address, so that the target device can be determined quickly and accurately, and the port closing process is performed on the target device.
In some possible implementation manners of the first aspect, when the second stacking member device fails and the uplink service port of the first stacking member device is in a working state, the first stacking member device performs a port recovery operation; or, when the first stacker member device does not receive the DAD protocol packet sent by the second stacker member device after the preset time, the first stacker member device performs a port recovery operation, where the port recovery operation includes switching all service ports in the first stacker member device that are in the non-operating state to the operating state. Optionally, the port recovery operation further comprises: and switching all the management ports in the first stacking member device in the non-working state to the working state. In this possible implementation, the failure recovery processing of the first stacker member device can be quickly realized after the failure is resolved.
In some possible implementation manners of the first aspect, the above-mentioned gate port operation may specifically include: preferentially closing a downlink service port in a working state in first stacking member equipment to trigger downstream equipment connected with the first stacking member equipment to switch service flow; after the downlink service port in the working state is closed, other service ports are closed. In this possible implementation manner, by preferentially closing the downstream service port in the working state, the downstream device can switch the service traffic in advance, so as to avoid unnecessary traffic forwarding delay caused by the traffic entering the target device through the downstream service port in the working state.
In some possible implementations of the first aspect, the method further includes: when the first downlink service port of the first stacking member device is in a non-working state, the first stacking member device refreshes the ARP table entry information of the first downlink service port to a second downlink service port, and the second downlink service port is a backup port of the first downlink service port. In this possible implementation manner, by refreshing the ARP entry information of the service port in the non-working state to the corresponding backup port, it can be realized that, when the service port fails and cannot work normally, the service traffic is quickly switched to the backup port to be sent to other stack member devices, and the traffic is forwarded by using the other stack member devices. Therefore, when a service port fails or is closed, the forwarding delay of service flow can be reduced, the flow switching performance is improved, and the user experience is improved.
In a second aspect, an embodiment of the present application provides a stack splitting processing apparatus, including: a processing module to perform the following operations: acquiring a working state of an uplink service port of each stacking member device in the stacking system, wherein the uplink service port is a service port of each stacking member device connected with an upstream device, and the stacking system comprises the first stacking member device and a second stacking member device; determining target equipment according to the working state of the uplink service port of each stacking member equipment; when the first stacking member device is the target device, executing a port closing operation, wherein the port closing operation comprises switching all service ports of the first stacking member device in a working state into a non-working state.
The constituent modules of the stack splitting processing apparatus may also perform the steps described in the foregoing various possible implementations of the first aspect, for details, see the foregoing description of the first aspect and various possible implementations, and are not described here again.
In a third aspect, an embodiment of the present application provides a computer-readable storage medium, which stores instructions that, when executed on a computer, cause the computer to perform the method of the first aspect.
In a fourth aspect, embodiments of the present application provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first aspect.
In a fifth aspect, embodiments of the present application provide a stack splitting processing apparatus, which may include: a processor, a memory; the memory is to store instructions; the processor is configured to execute the instructions in the memory such that the stack splitting processing device performs the method of the first aspect. The device may be a switch or a chip.
In a sixth aspect, the present application provides a chip system comprising a processor for enabling a switch to implement the functions referred to in the first aspect, for example, to transmit or process data and/or information referred to in the method. In one possible design, the system-on-chip further includes a memory for storing necessary program instructions and data. The chip system may be formed by a chip, or may include a chip and other discrete devices.
Drawings
Fig. 1 is a schematic view of an application scenario according to an embodiment of the present application;
FIG. 2 is a schematic flow chart of a stack splitting processing method according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a stacking splitting apparatus according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of another stacked splitting processing apparatus according to an embodiment of the present disclosure.
Detailed Description
The embodiment of the application provides a stacking splitting processing method and device, which are used for reducing service interruption time in a stacking splitting process, improving flow switching performance and improving user experience.
The following describes embodiments of the present application with reference to the drawings.
The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances and are merely descriptive of the various embodiments of the application and how objects of the same nature can be distinguished. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
In order to facilitate understanding of the stack splitting processing method in the embodiment of the present application, the following first explains the basic concept involved in the present application:
1. stacking system
The stacking system is a logical system formed by two or more devices (switches are taken as examples in this application) of the same type through a stacking protocol, and specifically, a plurality of switches are connected through a dedicated stacking cable and externally presented as one logical switch. The switches forming the stacking system are called stacking member devices, wherein stacking member devices mutually send stacking competition messages, and a main switch of the stacking system is selected according to a selection principle; after the primary switch elects, the primary switch collects information of all the stacking member devices and calculates topology information of the stacking system, and then the primary switch synchronizes the topology information of the stacking system to all the stacking member devices and elects a standby switch of the stacking system.
2. Stack splitting
Stack fragmentation refers to moving out part of the member switches in a live condition in a stack system that is operating steadily, or, a failure of a stack cable (stack link) causes one stack system to become multiple stack systems. Generally, when a stack is split, a plurality of main stack member devices appear in the stack system, and when the main stack member devices are detected to appear, it can be determined that the stack system is split. Detection of stack splitting is typically achieved using dual-active detect (DAD). In the process of stacking and splitting, collision occurs, which causes that the flow cannot be normally forwarded, and certain influence is caused on the service.
3. Dual master detection
The double-main detection DAD protocol is a protocol for detecting and processing the stack split, can realize the detection, conflict processing and fault recovery of the stack split, and reduces the influence of the stack split on the service. The ethernet link aggregation Eth-Trunk interface proxy detection mode is one of dual-master detection modes, and means that dual-master detection is performed on a cross-device Eth-Trunk link connected between a stacking system and a proxy device, and in the detection mode, the proxy device needs to configure and start a DAD proxy function. The Eth-Trunk interface may run DAD proxy detection and other traffic forwarding functions simultaneously. In the normal operation process of the stacking system, the main stacking member equipment sends a DAD message to the standby stacking member equipment through an Eth-Trunk link, wherein the DAD message carries the address information of the main stacking member equipment, and the standby stacking member equipment cannot send the DAD message; if the Eth-Trunk link fails, the backup stack member device sends a DAD message to the main stack member device. Therefore, if the master stacking member device in the stacking system receives the DAD message, it can be determined that the stacking system has a stack split. The Eth-Trunk link is an aggregation link, and specifically, the Eth-Trunk link is obtained by aggregating different links through a link aggregation technology. The link aggregation technique may configure physical ethernet ports on different member switches as one aggregate port. The physical port of the Eth-Trunk link connected with the member switch is an Eth-Trunk interface.
The technical scheme in the embodiment of the application is suitable for a stacking system, and is particularly suitable for a cross-device system which is formed by a core switch in a cross-data center networking by adopting a cross-device link aggregation group (M-LAG) technology.
Fig. 1 is a schematic view of an application scenario of the embodiment of the present application, and as shown in fig. 1, the present application may be applied in a scenario of networking across data centers. Fig. 1 includes a data center 1 and a data center 2. In the data center 1, the server 1 and the server 2 are dually connected to the access switches SW5 and SW6, and the access switches SW5 and SW6 are dually connected to the core switches SW1 and SW2, respectively. In the data center 2, the server 3 doubly connects the access switches SW7 and SW8, and the access switches SW7 and SW8 doubly connects the core switches SW3 and SW 4. Core switch SW1 connects SW4 and core switch SW2 connects SW3 to enable communication across the data center.
In the above fig. 1, the core switches SW1 and SW2 form a stack system through a stack protocol, and externally appear as a logical switch, and the physical ethernet interface of the core switch SW1 and the physical ethernet interface of the core switch SW2 are configured as an aggregation port by using M-LAG technology, where aggregation ports are respectively shown as two circles in the left half of fig. 1, and one circle illustrates one aggregation port. The core switches SW3 and SW4 also form a stack system through a stack protocol, and externally appear as a logical switch, and the physical ethernet interface of the core switch SW3 and the physical ethernet interface of the core switch SW4 are also configured as an aggregation port through M-LAG technology, where aggregation ports are respectively shown as two circles in the right half of fig. 1, and one circle illustrates one aggregation port; the logical switch formed by the core switches SW1 and SW2 and the logical switch formed by the core switches SW3 and SW4 are also configured as an aggregation port by using M-LAG technology, and the aggregation port is shown as a circle in the middle part of fig. 1.
It should be noted that the servers shown in fig. 1 are respectively connected to two access switches, and the two access switches may be respectively connected to a main network card and a standby network card in the server.
The stack splitting processing method in the embodiment of the application can be specifically used in a stack system composed of the core switches in the two data centers, so that when the stack system is split, stack splitting conflicts are quickly detected and processed, and faults are recovered.
Fig. 2 is a schematic flow chart of a stack splitting processing method in the embodiment of the present application.
As shown in fig. 2, the stack splitting processing method in the embodiment of the present application includes:
201. the first stacking member device obtains the working state of the uplink service port of each stacking member device in the stacking system.
The stacking system includes a first stacking member device and a second stacking member device. The first stacking member device not only needs to acquire the working state of its own uplink service port, but also acquires the working state information of the uplink service port of the second stacking member device. The uplink service port refers to a service port of each stack member device in the stack system, which is connected to an upstream device, in other words, the uplink service port includes a service port of a first stack member device and a service port of a second stack member device, which are connected to the upstream device.
In conjunction with fig. 1, the stacking system in the embodiment of the present application may be the stacking system composed of the core switches SW1 and SW2 in the data center 1. The first stack member device may be the core switch SW1 or SW2, and if the first stack member device is the core switch SW1, the second stack member device is the core switch SW 2; if the first stack member device is the core switch SW2, then the second stack member device is the core switch SW 1. At this time, the upstream devices may be the core switches SW3 and SW 4.
Similarly, the stack system in the embodiment of the present application may also be the stack system composed of the core switches SW3 and SW4 in the data center 2. The first stack member device may be the core switch SW3 or SW4, and if the first stack member device is the core switch SW3, the second stack member device is the core switch SW 4; if the first stack member device is the core switch SW4, then the second stack member device is the core switch SW 3. At this time, the upstream devices may be the core switches SW1 and SW 2.
The upstream service interfaces are interfaces between the core switches SW1 and SW4 and between the core switches SW2 and SW 3.
In some embodiment modes of the present application, a specific way for the first stacking member device to obtain the working state of the uplink service port of each stacking member device in the stacking system may be: the first stacking member device monitors the working state of the uplink service port of the first stacking member device, and optionally, the monitoring can adopt a real-time monitoring mode; and the first stacking member device receives a DAD protocol message sent by the second stacking member device, wherein the DAD protocol message carries the working state of the uplink service port of the second stacking member device. Specifically, the working state of the uplink service port may be indicated by extending a reserved field of the existing DAD protocol packet, for example, the extended ucUplinkType field indicates the working state of the uplink service port of the device of this segment, the size of the ucUplinkType field may be 1 byte, if the ucUplinkType field is 1, it indicates that the uplink service port in the working state exists, and if the ucUplinkType field is 2, it indicates that the uplink service port in the working state does not exist. It should be noted that, the implementation manner of the working state of the uplink service port carried in the DAD protocol packet includes, but is not limited to, the implementation manner described above, and may also be another implementation manner with similar functions, which is not limited in this application.
In some embodiment modes of the present application, the DAD protocol packet may further carry a failure flag, where the failure flag is used to indicate whether the second stack member device is marked as a failed device. Specifically, it is also possible to extend the reserved field of the existing DAD protocol packet to indicate whether the stack member device has been marked as a failed device, or to indicate whether the stack member device has been marked as a failed device. For example, the ucErrordownFlag field is extended to indicate whether the device is currently marked as a failed device, the size of the ucErrordownFlag field may be 1 byte, and if the ucErrordownFlag field is 1, it indicates that the local device is currently marked as a failed device; if the ucErrordownFlag field is 0, it indicates that the local device is not currently marked as a failed device. It should also be noted that the implementation manner of carrying the fault flag in the DAD protocol packet includes, but is not limited to, the above implementation manner, and may also be other implementation manners with similar functions, which is not limited in this application.
In some embodiment modes of the present application, when a stack system is split, the first stacking member device switches a sending mode of the DAD protocol packet to a fast packet sending mode. The fast message sending mode is a sending mode with a sending frequency greater than that of the stacking system in steady operation. In the existing DAD protocol, messages are sent periodically, and the sending period is generally 1 second (S). Taking the DAD protocol message sending cycle as 1S as an example, in the embodiment of the present application, if the stacking system is in a steady-state operation process, the first stacking member device sends a DAD protocol message every 1S; if the stacking system has stack splitting, the first stacking member device switches from sending the DAD protocol message once every 1S to sending the DAD protocol message once every 100 Milliseconds (MS). It should be noted that the DAD protocol packet may include, but is not limited to, the new packet carrying the working state and/or the fault flag of the uplink service port, and the application is not limited thereto.
202. And the first stacking member device determines the target device according to the working state of the uplink service port of each stacking member device.
The first stacking member device determines whether the corresponding stacking member device is a target device according to the working state of the uplink service port of each stacking member device in the stacking system, where the target device may include a stacking member device that needs fault isolation. Taking an example that the stacking system includes a first stacking member device and a second stacking member device, the first stacking member device determines whether the first stacking member device is a target device according to a working state of an uplink service port of the first stacking member device, and the first stacking member device determines whether the second stacking member device is a target device according to a working state of an uplink service port of the second stacking member device.
In some embodiment modes of the present application, the determining of the target device according to the working state of the uplink service port of each stacking member device in the stacking system may specifically adopt, but is not limited to, the following implementation modes: the first stacker device sequentially performs the following steps until the target device is determined:
1) if the stacking member equipment with all the uplink service ports in the non-working state exists, the first stacking member equipment takes the stacking member equipment with all the uplink service ports in the non-working state as target equipment;
2) if no stacking member device with all uplink service ports in a non-working state exists, the first stacking member device compares the stacking priorities of all stacking member devices and determines the stacking member device with a lower stacking priority as a target device;
3) and if the stacking priorities of all the stacking member devices are the same, the first stacking member device compares the MAC addresses of all the stacking member devices, and determines the target device according to the comparison result. For example, a stack member device with a larger or smaller MAC address may be determined as the target device.
It should be understood that different stack member devices have different MAC addresses, and thus the target device can be finally determined by the above scheme.
203. When the first stacker device is a target device, the first stacker device performs a close port operation.
In step 202, if the first stacker device determines that it is the target device, the first stacker device needs to perform fault isolation, that is, the first stacker device performs a port closing operation to close all ports except the reserved port in the first stacker device. The port closing operation may include switching all service ports of the first stacking member device in an operating state to a non-operating state, and the port closing operation may also include switching all management ports of the first stacking member device in an operating state to a non-operating state, where the management ports and the service ports are both non-reserved ports. In addition, the first stacker device may also perform a port closing operation on a service port and/or a management port in the first stacker device that is in an inactive state. Optionally, the above-mentioned gate port operation may specifically include but is not limited to: error-down operation. The Error-down is a protection mechanism for protecting the switch, when the switch detects that the port is abnormal, the port is down and marked as an Error-down state, and the port cannot be used continuously in the Error-down state.
If the first stacker member device is determined to be the target device, the first stacker member device will be marked as the failed device. Specifically, as described in step 201 above, if the first stacker member device is determined to be the target device, the ucerrownflag field in the DAD protocol message of the first stacker member device will be set to 1 to indicate that the first stacker member device is currently marked as the failed device.
In some embodiment modes of the present application, if the first stacker member device is a target device, the gate port operation may specifically be: and preferentially closing the downlink service port in the working state in the first member stacking device to trigger the downstream device connected with the first member stacking device to switch service flow. For the case that the port closing operation is an Error-down operation, the Error-down operation is preferentially performed on the downlink service port in the working state in the first stacker member equipment, and then the Error-down operation is performed on the non-reserved ports such as the downlink service port in the non-working state in the first stacker member equipment.
With reference to fig. 1, the downstream equipment may specifically include: access switches SW5, SW6, SW7 and SW8, and server 1, server 2 and server 3. Specifically, when the stacking system is the stacking system composed of the core switches SW1 and SW2 in the data center 1 described above, the corresponding downstream devices may be the access server 1, the server 2, the switches SW5, and SW 6; when the stack system is the above-described stack system composed of the core switches SW3 and SW4 in the data center 2, the corresponding downstream devices may be the access server 3, the switches SW7, and SW 8.
Optionally, 204, the first stacker member device performs a port recovery operation.
In some embodiment modes of the present application, the performing, by the first stacker device, the port recovery operation may include: and when the second stacking member device fails and the uplink service port of the first stacking member device is in a working state, the first stacking member device executes port recovery operation.
In some embodiment modes of the present application, the performing, by the first stacker device, a port recovery operation may also include: and when the first stacking member device does not receive the DAD protocol message sent by the second stacking member device after the preset time, the first stacking member device executes the port recovery operation.
Optionally, the port recovery operation includes switching all the service ports in the first stacking member device, which are in the non-operating state, to the operating state. Optionally, the port recovery operation further comprises: and switching all the management ports in the first stacking member device in the non-working state to the working state.
Optionally 205, when the first downlink traffic port of the first stacker member device is in a non-working state, the first stacker member device refreshes the address resolution protocol ARP entry information of the first downlink traffic port to the second downlink traffic port.
The second downlink service port is a backup port of the first downlink service port, or the first downlink service port and the second downlink service port are backup ports. By refreshing the ARP table entry information of the service port in the non-working state to the corresponding backup port without depending on subsequent service traffic for learning and consuming time, the service traffic can be quickly switched to the backup port to be sent to other stacking member devices under the condition that the service port fails and cannot normally work, and the traffic is forwarded by using the other stacking member devices. Therefore, when a service port fails or is closed, the forwarding delay of service flow can be reduced, the flow switching performance is improved, and the user experience is improved.
With reference to fig. 1, if the stacking system described in this embodiment is the stacking system composed of the core switches SW1 and SW2 in the data center 1 and the first stacking member device is the core switch SW1, the interfaces between the core switch SW1 and the access switches SW5 and SW6 are downlink service interfaces, and the interfaces between the core switches SW1 and SW5 and the interfaces between the core switches SW1 and SW6 may be backup ports, where one is the first downlink service interface and the other is the second downlink service interface. In the embodiment of the present application, when the stacking system is a stacking system composed of the core switches SW3 and SW4 in the data center 2, the first downlink service port and the second downlink service port are similar to those described in the data center 1, and the detailed description thereof may refer to the corresponding description when the stacking system is located in the data center 1, and is not described herein again.
In the embodiment of the application, the first stacking member device obtains and determines the target device according to the working state of the uplink service port of each stacking member device in the stacking system, and performs port closing operation on the target device, so that the service port in the working state is switched to the non-working state. Therefore, when the stack is split, the flow entering the stack system can be effectively prevented from entering the target equipment and being incapable of being forwarded through the uplink port, so that the flow loss is reduced, the flow forwarding time delay is reduced, the service interruption time in the stack splitting process is reduced, the flow switching performance in the stack splitting process is improved, and the user experience is improved.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the acts and modules illustrated in the embodiments described in the specification are not necessarily required in this application.
To facilitate better implementation of the above-described aspects of the embodiments of the present application, the following also provides relevant means for implementing the above-described aspects.
Fig. 3 is a schematic structural diagram of a stacking splitting processing apparatus according to an embodiment of the present disclosure.
The stack splitting processing apparatus 300 includes: a processing module 301; the processing module 301 is configured to perform the following operations: acquiring a working state of an uplink service port of each stacking member device in the stacking system, wherein the uplink service port is a service port of each stacking member device connected with an upstream device, and the stacking system comprises the first stacking member device and a second stacking member device; determining target equipment according to the working state of the uplink service port of each stacking member equipment; when the first stacking member device is the target device, executing a port closing operation, wherein the port closing operation comprises switching all service ports of the first stacking member device in a working state into a non-working state.
In some embodiment modes of the present application, the processing module 301 is specifically configured to: receiving a dual-master-detection DAD protocol message sent by the second stack member device, wherein the DAD protocol message carries a working state of an uplink service port of the second stack member device; and monitoring the working state of the uplink service port of the first stacking member device.
In some embodiment modes of the present application, the processing module 301 is further configured to: and when the stacking system is subjected to stacking splitting, switching the sending mode of the DAD protocol message to a rapid message sending mode.
In some embodiment modes of the present application, the DAD protocol message further carries a failure flag, where the failure flag is used to indicate whether the second stack member device is already marked as a failed device.
In some embodiment modes of the present application, the processing module 301 is specifically configured to: taking the stacking member device with all uplink service ports in a non-working state as the target device; when no stacking member device with all uplink service ports in a non-working state exists, comparing the stacking priorities of all the stacking member devices, and determining the stacking member device with a lower stacking priority as the target device; and when the stacking priorities of all the stacking member devices are the same, comparing the MAC addresses of all the stacking member devices, and determining the target device according to the comparison result. For example, the processing module 301 may determine a stack member device with a larger or smaller MAC address as the target device.
In some embodiment modes of the present application, the processing module 301 is further configured to: when the second stacking member device fails and an uplink service port of the first stacking member device is in a working state, executing port recovery operation; or, when the first stacking member device does not receive the DAD protocol packet sent by the second stacking member device after a preset time, executing a port recovery operation.
In some embodiment modes of the present application, the port recovery operation includes switching all the traffic ports in the first stacking member device that are in the inactive state to the active state. Optionally, the port recovery operation further comprises: and switching all the management ports in the first stacking member device in the non-working state to the working state.
In some embodiment modes of the present application, the processing module 301 is specifically configured to: and preferentially closing the working downlink service port in the first stacking member device to trigger the downstream device connected with the first stacking member device to switch service flow.
In some embodiment modes of the present application, the processing module 301 is further configured to: when a first downlink service port of the first stacking member device is in a non-working state, refreshing Address Resolution Protocol (ARP) table entry information of the first downlink service port to a second downlink service port, wherein the second downlink service port is a backup port of the first downlink service port.
It should be noted that all steps and operations performed by the first stacker crane apparatus in the above method embodiment may be referred to as being performed in the processing module 301. The advantageous effects obtained by the stacking splitting processing device 30 in the embodiment of the present application are similar to those described in the embodiment of the method, and the detailed description thereof can refer to the description of the relevant parts in the embodiment of the method, which is not repeated herein.
It should be further noted that, because the contents of information interaction, execution process, and the like between the modules/units of the apparatus are based on the same concept as the method embodiment of the present application, the technical effect brought by the contents is the same as the method embodiment of the present application, and specific contents may refer to the description in the foregoing method embodiment of the present application, and are not described herein again.
The embodiment of the present application further provides a computer storage medium, where the computer storage medium stores a program, and the program executes some or all of the steps described in the above method embodiments.
Fig. 4 is a schematic structural diagram of another stacked splitting apparatus according to an embodiment of the present disclosure.
The stack splitting processing apparatus 400 includes: a processor 401, a memory 402 and a bus system 405, wherein the number of the processors 401 in the stack splitting processing apparatus 400 may be one or more, and one processor is taken as an example in fig. 4; a bus system is used to connect the processor 401 and the memory 402. In some embodiments of the present application, the stack splitting processing apparatus 400 may further include: a first communication interface 403, a second communication interface 404; the first communication interface 403, the second communication interface 404, the processor 401 and the memory 402 may be connected by a bus or other means, wherein fig. 4 illustrates the connection by a bus.
The processor 401 controls the operation of the stack splitting processing apparatus 400, and the processor 401 may also be referred to as a Central Processing Unit (CPU). In a particular application, the various components of the stacked split processing apparatus 400 are coupled together by a bus system that may include a power bus, a control bus, a status signal bus, and the like, in addition to a data bus. For clarity of illustration, the various buses are referred to in the figures as the bus system 405.
The method disclosed in the embodiments of the present application may be applied to the processor 401, or implemented by the processor 401. The processor 401 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 401. The processor 401 may be a general-purpose processor, a Digital Signal Processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The general purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application may be directly performed by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the hardware decoding processor. The software modules may be located in ram, flash, rom, prom, or eprom, registers, among other storage media as is well known in the art. The storage medium is located in the memory 402, and the processor 401 reads the information in the memory 402 and completes the steps of the method in combination with the hardware.
Both the first communication interface 403 and the second communication interface 404 may be used to receive and/or transmit numerical or character information and to input and/or output signals related to the relevant settings and functional control of the stack splitting processing apparatus 400.
In this embodiment, the processor 401 is configured to perform all the operations performed by the first stacker device in the foregoing method embodiment.
The stack splitting processing device in the embodiment of the present application may also be a switch or a chip. When the stack splitting processing apparatus is a chip, the chip includes: a processing unit, which may be for example a processor, and a communication unit, which may be for example an input/output interface, a pin or a circuit, etc. The processing unit can execute the computer-executable instructions stored in the storage unit to enable the chip in the terminal to execute the stack splitting processing method of any one of the first aspect. Optionally, the storage unit is a storage unit in the chip, such as a register, a cache, and the like, and the storage unit may also be a storage unit located outside the chip in the terminal, such as a read-only memory (ROM) or another type of static storage device that can store static information and instructions, a Random Access Memory (RAM), and the like.
It should be noted that the above-described embodiments of the apparatus are merely schematic, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiments of the apparatus provided in the present application, the connection relationship between the modules indicates that there is a communication connection therebetween, and may be implemented as one or more communication buses or signal lines.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present application can be implemented by software plus necessary general-purpose hardware, and certainly can also be implemented by special-purpose hardware including special-purpose integrated circuits, special-purpose CPUs, special-purpose memories, special-purpose components and the like. Generally, functions performed by computer programs can be easily implemented by corresponding hardware, and specific hardware structures for implementing the same functions may be various, such as analog circuits, digital circuits, or dedicated circuits. However, for the present application, the implementation of a software program is more preferable. Based on such understanding, the technical solutions of the present application may be substantially embodied in the form of a software product, which is stored in a readable storage medium, such as a floppy disk, a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods described in the embodiments of the present application.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product.
The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
Claims (17)
1. A stack splitting processing method is applied to a stack splitting scene and comprises the following steps:
the method comprises the steps that a first stacking member device obtains the working state of an uplink service port of each stacking member device in a stacking system, the uplink service port is a service port of each stacking member device connected with an upstream device, and the stacking system comprises the first stacking member device and a second stacking member device;
the first stacking member device determines a target device according to the working state of the uplink service port of each stacking member device;
when the first stacker member device is the target device, the first stacker member device performs a port closing operation, where the port closing operation includes switching all service ports of the first stacker member device that are in an operating state to a non-operating state.
2. The method according to claim 1, wherein the obtaining the working status of the uplink service port of each stack member device in the stack system comprises:
receiving a dual-master-detection DAD protocol message sent by the second stack member device, wherein the DAD protocol message carries a working state of an uplink service port of the second stack member device; and the number of the first and second groups,
and monitoring the working state of the uplink service port of the first stacking member device.
3. The method of claim 2, further comprising:
when the stacking system is subjected to stacking splitting, the first stacking member device switches the DAD protocol message sending mode to a rapid message sending mode.
4. The method according to claim 2 or 3, wherein the DAD protocol message further carries a failure flag indicating whether the second stack member device has been marked as a failed device.
5. The method according to any of claims 1-4, wherein said determining a target device according to the working status of the upstream traffic port of each stack member device comprises:
taking the stacking member device with all uplink service ports in a non-working state as the target device;
when no stacking member device with all uplink service ports in a non-working state exists, comparing the stacking priorities of all the stacking member devices, and determining the stacking member device with a lower stacking priority as the target device;
and when the stacking priorities of all the stacking member devices are the same, comparing the MAC addresses of all the stacking member devices, and determining the target device according to the comparison result.
6. The method according to any one of claims 2-5, further comprising:
when the second stacking member device fails and an uplink service port of the first stacking member device is in a working state, the first stacking member device executes port recovery operation;
or the like, or, alternatively,
and when the first stacking member device does not receive the DAD protocol message sent by the second stacking member device after the preset time, the first stacking member device executes port recovery operation.
7. The method of any of claims 1 to 6, wherein the off-port operation comprises:
and preferentially closing the working downlink service port in the first stacking member device to trigger the downstream device connected with the first stacking member device to switch service flow.
8. The method according to any one of claims 1 to 6, further comprising:
when the first downlink service port of the first stacking member device is in a non-working state, the first stacking member device refreshes Address Resolution Protocol (ARP) table entry information of the first downlink service port to a second downlink service port, and the second downlink service port is a backup port of the first downlink service port.
9. A stack splitting processing apparatus, comprising:
a processing module to perform the following operations:
acquiring a working state of an uplink service port of each stacking member device in the stacking system, wherein the uplink service port is a service port of each stacking member device connected with an upstream device, and the stacking system comprises the first stacking member device and a second stacking member device;
determining target equipment according to the working state of the uplink service port of each stacking member equipment;
when the first stacking member device is the target device, executing a port closing operation, wherein the port closing operation comprises switching all service ports of the first stacking member device in a working state into a non-working state.
10. The apparatus of claim 9, wherein the processing module is specifically configured to:
receiving a dual-master-detection DAD protocol message sent by the second stack member device, wherein the DAD protocol message carries a working state of an uplink service port of the second stack member device; and the number of the first and second groups,
and monitoring the working state of the uplink service port of the first stacking member device.
11. The apparatus of claim 10, wherein the processing module is further configured to:
and when the stacking system is subjected to stacking splitting, switching the sending mode of the DAD protocol message to a rapid message sending mode.
12. The apparatus according to claim 10 or 11, wherein the DAD protocol message further carries a failure flag, and the failure flag is used to indicate whether the second stack member device has been marked as a failed device.
13. The apparatus according to any one of claims 9-12, wherein the processing module is specifically configured to:
taking the stacking member device with all uplink service ports in a non-working state as the target device;
when no stacking member device with all uplink service ports in a non-working state exists, comparing the stacking priorities of all the stacking member devices, and determining the stacking member device with a lower stacking priority as the target device;
and when the stacking priorities of all the stacking member devices are the same, comparing the MAC addresses of all the stacking member devices, and determining the target device according to the comparison result.
14. The apparatus of any of claims 10-13, wherein the processing module is further configured to:
when the second stacking member device fails and an uplink service port of the first stacking member device is in a working state, executing port recovery operation;
or the like, or, alternatively,
and when the first stacking member device does not receive the DAD protocol message sent by the second stacking member device after the preset time, executing port recovery operation.
15. The apparatus according to any one of claims 9-14, wherein the processing module is specifically configured to:
and preferentially closing the working downlink service port in the first stacking member device to trigger the downstream device connected with the first stacking member device to switch service flow.
16. The apparatus of any of claims 9-15, wherein the processing module is further configured to:
when a first downlink service port of the first stacking member device is in a non-working state, refreshing Address Resolution Protocol (ARP) table entry information of the first downlink service port to a second downlink service port, wherein the second downlink service port is a backup port of the first downlink service port.
17. A stack splitting processing apparatus, comprising:
a processor and a memory to store instructions;
the processor is configured to perform the method according to any one of claims 1 to 8 by calling the instruction.
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