CN112737892A - Switch performance test method and system - Google Patents

Abstract

The application provides a method and a system for testing switch performance, wherein the method comprises the following steps: the traffic generation equipment configures a static MAC table entry to the tested switch, wherein the static MAC table entry comprises a corresponding relation between a first MAC address and a port identifier of a first port; the traffic generating equipment generates a data stream with a target MAC address as the first MAC address and sends the data stream to the tested switch; when the tested switch receives the data stream, forwarding the data stream; the data receiving equipment receives the data stream sent by the switch to be tested through a second port; if the data stream is not received, determining that the data forwarding capability of the tested switch is normal; otherwise, determining that the data forwarding capability of the tested switch is abnormal. The method can simply and accurately test the basic performance of the switch.

Description

A kind of switch performance testing method and system

technical field

The invention relates to the technical field of the Internet of Things, in particular to a method and device for testing the performance of a switch.

Background technique

With the deployment of 5G, we are gradually entering the era of the Internet of Everything and the explosive growth of data. More and more services have put forward higher requirements for latency and reliability, and edge data centers close to users have emerged. Edge data centers provide storage, computing, network and other resources on the network edge side close to users to reduce bandwidth and delay loss caused by network transmission and multi-level forwarding.

With the development of edge data centers, Ethernet switches are becoming more and more important in edge data centers. An Ethernet switch is a network device that implements data transmission and switching based on Ethernet. Its structure is that each port directly communicates with The devices are connected and all work in full-duplex mode. The switch can connect multiple pairs of ports at the same time, so that each pair of hosts that communicate with each other can transmit data independently and without conflict. The quality of the Ethernet switch will directly affect the network communication capability of the edge data center, so it is more important to formulate a corresponding test method for the Ethernet switch of the edge data center.

With the development of edge computing, the ports of edge data center switches will grow rapidly. In order to ensure the increase of switch ports in the edge data center, the working performance of each switch must be effectively guaranteed.

How to test the basic performance of the switch, such as the data flow forwarding capability, is particularly important.

SUMMARY OF THE INVENTION

In view of this, the present application provides a method and system for testing switch performance, which can simply and accurately test the basic performance of a switch.

In order to solve the above-mentioned technical problems, the technical solution of the present application is realized as follows:

In one embodiment, a method for testing switch performance is provided, the method comprising:

The traffic generating device configures a static MAC entry to the switch under test, wherein the static MAC entry includes a correspondence between the first MAC address and the port identifier of the first port;

The traffic generating device generates a data stream whose destination MAC address is the first MAC address, and sends it to the switch under test;

When the switch under test receives the data stream, it forwards the data stream;

The data receiving device receives the data stream sent by the switch under test through the second port; if the data stream is not received, it is determined that the data forwarding capability of the switch under test is normal; otherwise, it is determined that the switch under test is normal The data forwarding capability is abnormal; wherein, the first port and the second port are different ports.

In another embodiment, a switch performance testing system is provided, and the system includes: a traffic generating device, a tested switch, and a traffic receiving device;

The traffic generating device configures a static MAC entry to the switch under test; generates a data flow whose destination MAC address is the first MAC address, and sends it to the switch under test; wherein the static MAC entry includes the first MAC address. A correspondence between the MAC address and the port identifier of the first port;

The switch under test, when receiving the data stream sent by the traffic generating device, forwards the data stream;

The data receiving device receives the data stream sent by the switch under test through the second port; if the data stream is not received, determine that the data forwarding capability of the switch under test is normal; otherwise, determine the The data forwarding capability of the switch under test is abnormal; wherein, the first port and the second port are different ports.

It can be seen from the above technical solutions that the test system built in the above embodiment tests whether the switch under test can forward data flows according to the configured MAC entries under the premise of configuring static MAC entries. This solution can simply and accurately test the basic performance of the switch.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

1 is a schematic diagram of a switch performance testing system in an embodiment of the application;

FIG. 2 is a schematic flowchart of a performance test flow of a switch in Embodiment 1 of the present application;

FIG. 3 is a schematic flowchart of a performance test of a switch in Embodiment 2 of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The terms "first", "second", "third", "fourth", etc. (if present) in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the invention described herein can, for example, be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units expressly listed, but may include steps or units not expressly listed or for such process, method, product or Other steps or units inherent in the device.

The technical solutions of the present invention will be described in detail below with specific embodiments. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

An embodiment of the present application provides a switch performance testing method, which is applied to a switch performance testing system. The test system built in the embodiment of the present application tests whether the switch under test can forward data flow according to the configured MAC entry under the premise of configuring a static media access control (MAC) entry; if the static MAC entry is not configured on the premise Next, test whether the switch under test can broadcast the data stream. This solution can simply and accurately test the basic performance of the switch.

In this embodiment of the present application, a test system needs to be built before the performance test of the switch is performed. Building a test system requires the following equipment: a switch under test, a traffic generating device, and a traffic receiving device. The built test system is shown in FIG. 1 , which is a schematic diagram of the switch performance test system in the embodiment of the present application.

The traffic generating device is physically connected to the switch under test, and the switch under test is physically connected to the traffic generating device through the first port and the third port respectively;

The switch under test is physically connected to the traffic receiving device through the second port.

The third port, the first port, and the second port are all different ports.

The traffic generating device can configure and delete static MAC entries on the switch under test, check whether the configuration and deletion of static MAC entries are successful, generate data flows with specified destination MAC addresses, and send data to the switch under test through physical connections. send data stream;

such as a computer.

The switch under test works at the data link layer. During operation, when a unicast data stream is received, it will look up the destination MAC address of the data stream in the local MAC address entry. If there is one, it will pass the packet through the MAC address entry. The port is directly unicast forwarded; if not, the data stream will be broadcast, that is, forwarded through all local ports.

The traffic receiving device can observe whether the data flow is received and the destination MAC address of the data flow, so as to check whether the data flow is forwarded on the switch according to the provisions of the MAC protocol.

For example, a protocol analyzer with a display screen, etc.

Based on the switch performance test system, the process of realizing the switch performance test is given below:

Before the test, there is no MAC entry on the switch under test. If it exists, it will be cleared.

The traffic generating device configures a static MAC entry to the switch under test; generates a data flow whose destination MAC address is the first MAC address, and sends it to the switch under test; wherein the static MAC entry includes the first MAC address. A correspondence between the MAC address and the port identifier of the first port;

The switch under test, when receiving the data stream sent by the traffic generating device, forwards the data stream;

The data receiving device receives the data stream sent by the switch under test through the second port; if the data stream is not received, determine that the data forwarding capability of the switch under test is normal; otherwise, determine the The data forwarding capability of the switch under test is abnormal; wherein, the first port and the second port are different ports.

in

The traffic generation device further, after configuring the static MAC address entry to the switch under test, the traffic generation device performs a configuration check on the switch, and if it is determined that the static MAC address entry has been configured in the switch under test, then determine The configuration of the static MAC address is completed, and the generated data flow is sent to the switch under test; otherwise, it is determined that the configuration of the static MAC entry is not completed, and the test ends.

in,

The traffic generating device further deletes the static MAC entry from the switch under test, generates a data stream whose destination MAC address is the first MAC address, and sends it to the switch under test;

The switch under test, when further receiving the data stream, forwards the data stream;

The data receiving device further receives the data stream sent by the switch under test through the second port; if the data stream is received, determine that the data forwarding capability of the switch under test is normal; otherwise, determine The data forwarding capability of the switch under test is abnormal.

in,

The traffic generating device further checks the configuration of the switch after deleting the static MAC entry from the switch under test, and determines that the static MAC entry is not configured in the switch under test. The static MAC entry is deleted, and the generated data flow is sent to the switch under test; otherwise, it is determined that the static MAC entry is not deleted, and the test ends.

The following describes in detail the process of implementing switch performance testing in the embodiments of the present application with reference to the accompanying drawings:

Example 1

Referring to FIG. 2 , FIG. 2 is a schematic diagram of a performance test flow of a switch in Embodiment 1 of the present application. The specific steps are:

Step 201, the traffic generating device configures a static MAC entry to the switch under test.

Wherein, the static MAC entry includes the correspondence between the first MAC address and the port identifier of the first port.

The first port is the next hop port of the first MAC address.

After the traffic generating device configures the static MAC address entry to the switch under test, the traffic generating device checks the configuration of the switch. configure; go to step 202; otherwise, determine that the configuration of the static MAC entry is not completed, and end the test.

The end of this test here refers to the test after the current static MAC entry is configured. If the test continues, the static MAC entry needs to be configured again for the test.

Step 202, the traffic generating device generates a data stream whose destination MAC address is the first MAC address, and sends it to the switch under test.

Step 203: When the switch under test receives the data flow, it forwards the data flow.

If the basic performance of the tested switch is normal, it will search for the MAC entry of the data flow, and when the corresponding MAC entry is found, it will be forwarded through the port in the MAC entry.

Step 204: The data receiving device receives the data stream sent by the switch under test through the second port.

Step 205: If the data stream is not received, it is determined that the data forwarding capability of the switch under test is normal. End this process.

Step 206: If the data stream is received, it is determined that the data forwarding capability of the switch under test is abnormal.

The test system constructed in the embodiment of the present application tests whether the switch under test can forward data flow according to the configured MAC entry under the premise of configuring the static MAC entry. This solution can simply and accurately test the basic performance of the switch.

Embodiment 2

Referring to FIG. 3 , FIG. 3 is a schematic diagram of a performance test flow of a switch in Embodiment 2 of the present application. The specific steps are:

Step 301: The traffic generating device deletes the static MAC entry from the switch under test.

In this step, after the traffic generating device deletes the static MAC entry from the switch under test, the traffic generating device checks the configuration of the switch. If it is determined that the static MAC entry is not configured in the switch under test, then It is determined that the static MAC entry is deleted, and step 302 is performed; otherwise, it is determined that the static MAC entry is not deleted, and the test ends.

The end of this test here refers to the test after deleting the configured static MAC entry. If the test continues, you need to delete the static MAC entry again for the test.

Step 302: The traffic generating device generates a data stream whose destination MAC address is the first MAC address, and sends the data stream to the switch under test.

Step 303: When the switch under test receives the data flow, it forwards the data flow.

If the basic performance of the switch under test is normal, it searches the MAC entry of the data flow, and if no corresponding MAC entry is found, it broadcasts the data flow and sends it through all local ports.

Step 304: The data receiving device receives the data stream sent by the switch under test through the second port.

Step 305: If the data stream is received, it is determined that the data forwarding capability of the switch under test is normal. End this process.

Step 306: If the data stream is not received, it is determined that the data forwarding capability of the switch under test is abnormal.

The test system constructed in the embodiment of the present application tests whether the switch under test can perform broadcast processing on the data flow under the premise that the static MAC entry is not configured. This solution can simply and accurately test the basic performance of the switch.

In this embodiment, the broadcast capability test is performed by deleting the configured static MAC address entry. In practice, the capability test can also be performed before configuring the static MAC address entry.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.

Claims (10)

1. a switch performance testing method, is characterized in that, described method comprises: The traffic generating device configures a static media access control MAC entry to the switch under test, wherein the static MAC entry includes a correspondence between the first MAC address and the port identifier of the first port; The traffic generating device generates a data stream whose destination MAC address is the first MAC address, and sends it to the switch under test; When the switch under test receives the data stream, it forwards the data stream; The data receiving device receives the data stream sent by the switch under test through the second port; if the data stream is not received, it is determined that the data forwarding capability of the switch under test is normal; otherwise, it is determined that the switch under test is normal The data forwarding capability is abnormal; wherein, the first port and the second port are different ports. 2. The method according to claim 1, wherein after the traffic generating device configures a static MAC entry to the switch under test and before sending the generated data stream to the switch under test, the method further comprises: The traffic generation device checks the configuration of the switch, and if it is determined that the static MAC address entry has been configured in the switch under test, it is determined to complete the configuration of the static MAC address; execute the sending to the switch under test. The operation of the generated data flow; otherwise, it is determined that the configuration of the static MAC table entry has not been completed, and this test is ended. 3. The method of claim 1, wherein the method further comprises: The traffic generating device deletes the static MAC entry from the switch under test; The traffic generating device generates a data stream whose destination MAC address is the first MAC address, and sends it to the switch under test; When the switch under test receives the data flow, it forwards the data flow; The data receiving device receives the data stream sent by the switch under test through the second port; if the data stream is received, it is determined that the data forwarding capability of the switch under test is normal; otherwise, the data forwarding capability of the switch under test is determined to be normal; The data forwarding capability of the switch under test is abnormal. 4. The method according to claim 3, wherein after the traffic generating device deletes the static MAC entry from the switch under test, before sending the data flow to the switch under test , the method further includes: The traffic generation device checks the configuration of the switch, and if it is determined that the static MAC entry is not configured in the switch under test, determines that the static MAC entry is deleted, and executes the sending to the switch under test. operation of the data flow; otherwise, it is determined that the static MAC entry has not been deleted, and the test ends. 5. The method of claim 1, wherein The data receiving device can observe whether a data stream is received and the destination MAC address of the data stream. 6. The method according to any one of claims 1-5, wherein the method further comprises: The switch under test is physically connected to the traffic generating device through the first port and the third port respectively; The switch under test is physically connected to the traffic receiving device through a second port; The third port is different from the first port and different from the second port. 7. A switch performance testing system, characterized in that the system comprises: a flow generating device, a tested switch and a flow receiving device; The traffic generating device configures a static media access control MAC entry to the switch under test; generates a data flow whose destination MAC address is the first MAC address, and sends it to the switch under test; wherein the static MAC table The item includes the correspondence between the first MAC address and the port identifier of the first port; The switch under test, when receiving the data stream sent by the traffic generating device, forwards the data stream; The data receiving device receives the data stream sent by the switch under test through the second port; if the data stream is not received, determine that the data forwarding capability of the switch under test is normal; otherwise, determine the The data forwarding capability of the switch under test is abnormal; wherein, the first port and the second port are different ports. 8. The device of claim 7, wherein The traffic generation device, further after configuring the static MAC address entry to the switch under test, the traffic generation device checks the configuration of the switch, and if it is determined that the static MAC address entry has been configured in the switch under test, then determine The configuration of the static MAC address is completed, and the generated data stream is sent to the switch under test; otherwise, it is determined that the configuration of the static MAC entry is not completed, and the test ends. 9. The device according to claim 7 or 8, characterized in that, The traffic generating device further deletes the static MAC entry from the switch under test, generates a data stream whose destination MAC address is the first MAC address, and sends it to the switch under test; The switch under test, when further receiving the data stream, forwards the data stream; The data receiving device further receives the data stream sent by the switch under test through the second port; if the data stream is received, determine that the data forwarding capability of the switch under test is normal; otherwise, determine The data forwarding capability of the switch under test is abnormal. 10. The device of claim 9, wherein The traffic generating device further checks the configuration of the switch after deleting the static MAC entry from the switch under test, and if it is determined that the static MAC entry is not configured in the switch under test, determining The static MAC entry is deleted, and the generated data flow is sent to the switch under test; otherwise, it is determined that the static MAC entry is not deleted, and the test ends.

Images