WO2008083579A1 - Method, recording media and system for testing routing message protocol performance of network apparatus - Google Patents

Abstract

Method, recording media and system in communication test field for testing the routing message protocol performance of a network apparatus, including establishing RIP Session with the tested network apparatus, setting information of routing entries, packaging it into response message, and multicasting the response message to the tested network apparatus periodically. The apparatus processes the response message, and determines the routing message protocol performance of it according to the processing result. The system includes an initialization a module, a message sending module and processing module.

Description

 [1] Technical field

 [2] The present invention relates to the field of communication testing, and in particular, to a method, a storage medium, and a system for testing the performance of a routing information protocol of a network device.

[3] Background of the invention

 With the development of Internet (Internet) technology, communication equipment manufacturers have launched their own network devices such as routers and Ethernet switches. When a network device runs on the Internet, it often fails because of the number of routes that need to be processed. Therefore, it is necessary to test the faulty network device. When testing a failed router, it is often necessary to reproduce the embarrassing environment as much as possible. The most important point is to add a real route to the router that has problems.

 Protocol, Routing Information Protocol) is one of the earliest internal gateway protocols on the Internet. It is not only simple to implement, easy to configure, but also easy to maintain. It has gone through the RIPv1 version to the version RIPv2, and the latest version of RIPNG based on IPV6 (Routing) After the development of Information Protocol Next Generation for IPV6 (IPV6-based next-generation routing information protocol), its functions are continuously strengthened and expanded with the growth of the Internet. Therefore, the performance of RIP protocol is one of the important indicators for verifying network devices such as routers. .

 [6] After testing the routing information protocol performance of network devices, it is often necessary to use a special test instrument to add a large number of real routes to the network device. The existing test instruments are generally composed of a dedicated hardware system, and a dedicated embedded operating system is internally operated. The test instrument is operated by control software running on a common platform such as a PC or a workstation, so that the test instrument can simulate RIP/RIPNG with a large amount of RTE (Route Entry) information.

 Response (Message) message, and the Response message is sent to the network device under test. Observing the processing of these large numbers of RTEs by network devices, it is possible to determine the processing capabilities of the network devices for the received routes.

[7] Because the price of test instruments is extremely expensive, the average small and medium network equipment manufacturers are afraid to pay attention. Even the rules The large-scale and strong network equipment R&D units, enterprises and well-known evaluation organizations are also constrained by price factors, resulting in the number of test instruments not fully meeting the needs of development or testing.

 [8] Summary of the invention

 [9] The embodiment of the present invention is used to solve the problem that the performance of the routing information protocol of the network device is tested in the prior art, which relies on a special test instrument and is expensive.

[10] The embodiment of the present invention is implemented by the following technical solutions:

 [11] An embodiment of the present invention provides a method for testing performance of a routing information protocol of a network device, where the method includes the following steps:

 [12] establishing a routing information protocol session with the network device under test, setting routing item information, and encapsulating the routing item information into a response message, and determining that the multicast sending the response message to the network device under test;

 [13] determining, according to the processing result of the received response message, the measured network protocol performance of the network device under test.

 [14] An embodiment of the present invention provides a storage medium, where the storage medium stores an application program for testing a routing information protocol performance of a network device, where the application program includes the following steps:

 [15] establishing a routing information protocol session with the network device under test, setting routing item information, and encapsulating the routing item information into a response message, and determining that the multicast message is sent to the network device under test;

 [16] determining, according to the processing result of the received response message, the measured network protocol performance of the network device under test.

 [17] The embodiment of the invention provides a system for testing the performance of a routing information protocol of a network device, where the system includes:

 [18] an initialization module, configured to establish a routing information protocol session with the network device under test, set routing item information, and encapsulate the routing item information into a response message;

[19] a message sending module, configured to multicast the response message generated by the initialization module to the network device under test;

 [20] The processing module is configured to determine, according to the processing result of the received response message by the network device under test, the routing information protocol performance of the network device under test.

[21] It can be seen from the technical solution provided by the foregoing embodiments of the present invention that the embodiment of the present invention establishes a routing information protocol session with the network device under test by using a software program, and sends a Response message to the network device under test. This not only reduces the development and testing costs of network devices, but also eliminates the reliance on expensive, dedicated, hardware-based test instruments, and can also implement routing tables for the network devices under test by simply changing the configured RTE information. RIP/RIPNG performance testing such as depth and route convergence capabilities, and greatly improved efficiency.

[22] BRIEF DESCRIPTION OF THE DRAWINGS

 1 is a schematic diagram of a system for implementing testing by a computer according to an embodiment of the present invention;

2 is a flow chart of a method for testing the performance of a routing information protocol of a network device according to an embodiment of the present invention;

FIG. 3 is a system structural diagram of testing the performance of a routing information protocol of a network device according to an embodiment of the present invention.

[26] Mode for carrying out the invention

 The invention will be further described with reference to the drawings and specific embodiments, but the invention is not limited to the following embodiments.

 Referring to FIG. 1 and FIG. 2, an embodiment of the present invention provides a method for testing the performance of a routing information protocol of a network device, which is implemented on a general-purpose computer (such as a PC), and specifically includes the following steps:

 [29] Step 101: Connect the computer to the network device under test, and use the software program on the computer to establish a RIP Session between the computer and the network device under test. RIP

 The peers established by the Session generate related parameters: such as mask information, the IP address of the network device under test, the timer, and so on;

 Step 102: Configure multiple pieces of RTE information by using a software program. Generally, one piece of RTE information mainly includes the following contents: destination IP address, mask, next hop, route identifier, address family identifier (Address Family Identifier), METRIC value, etc. Wait;

 [31] Step 103: The software program is used to encapsulate the configured RTE information into multiple Response messages.

[32] For the RIP protocol, a Response packet can encapsulate up to 25 RTE information. For the RIPNG protocol, the number of RTE information that can be encapsulated in a Response packet needs to be based on MTU (Maximum).

Transport Unit, Maximum Transfer Unit) and the size of the IP header are calculated.

 [33] Step 104: Hej uses the software program to send the generated Response message to the multicast network device.

The multicast period is controlled by a preset timer. For example, the period can be defined as 10s, 20s or 30s.

[34] Step 105: After the network device under test receives the Response packet sent by the computer, the response packet is received from the Response packet. The RTE information is extracted, and the routing table of the network device under test is updated according to the RTE information, for example, adding a routing entry, deleting a routing entry, or changing the content of the routing entry (METRIC or next hop, etc.) Wait) .

 For example, if there is a routing entry in the routing table, the destination IP address is 10.1.1.2, and the METRIC value is 5. If the network device under test receives a Response packet, the IP address of an entry is also 10.1. The route of .1.2, but the METRIC value is 2, then the network device under test changes the routing table and changes the METRIC value in the original routing entry to 3 (add 1 to the received METRIC value).

 [36] Further, after receiving the Response message, the network device under test may first determine whether the Response message is correct. If it is correct, extract the RTE information from the message, and update according to the extracted RTE information. Routing table; otherwise discard the message.

 [37] After testing the routing table depth of the network device under test, first use the software program to configure different reachable RTE information on the computer, and then package the corresponding response packets, and then multicast to send these Response messages. The maximum number of routing entries that can be accommodated in the routing table is the maximum number of routing entries. .

 [38] After testing the route convergence capability of the network device under test, first configure a reachable route (that is, the METRIC value between 1 and 15) using a software program on the computer, and package it into a Response message to determine the multicast. Sending to the network device under test; then modifying the reachable route to an unreachable route (ie, changing the METRIC value to 16, the other information is unchanged), and encapsulating it into a Response message, and determining that the multicast is sent to the network device under test; Then, the above process is repeated, that is, the above-mentioned routes are alternately changed to reachable and unreachable, and the corresponding Response message is alternately sent to the network device under test, thereby simulating the route flapping in the real network; the network device under test receives After the response packet, the RTE information is extracted. For the reachable route, the network device to be tested adds a routing entry to the routing table. For the unreachable route, the network device under test identifies the original reachable routing entry as Unreachable, that is, change the METRIC value of the original reachable routing entry to 16.

[39] In this embodiment, the computer can interact with the user by providing a visual interface mode, and the user only needs to click the mouse to select or confirm, or input simple parameters to set, and easily establish the RIP session and RTE information. Configuration, response packet transmission, etc.; can also provide non-visual command mode, the user types the command on the computer, thus establishing a session, configuring RTE information And sending messages and other operations; either way, the operation is simple, convenient, fast, and easy to implement. For example, you can easily generate 10,000 RTE information by simply setting a few parameters in your computer.

[40] Referring to FIG. 3, an embodiment of the present invention further provides a system for testing the performance of a routing information protocol of a network device, which specifically includes:

 [41] (1) an initialization module, configured to establish a routing information protocol session with the network device under test by using a program, set routing item information, and encapsulate the routing item information into a response message;

[42] (2) A message sending module, configured to multicast the response message generated by the initialization module to the network device under test by using a program definition;

 [43] (3) A processing module, configured to determine, according to the processing result of the received response message by the network device under test, the routing information protocol performance of the tested network device.

[44] The above processing module specifically includes:

 [45] The routing update unit is configured to: after receiving the response packet sent by the packet sending module, the network device to be tested extracts the routing item information in the response packet, and updates the measured network according to the extracted routing item information. Routing table of the device;

 [46] a result processing unit, configured to update a routing table of the network device under test according to the foregoing routing update unit

, determine the routing information protocol performance of the network device under test.

[47] The above system for testing the routing information protocol performance of a network device further includes:

 [48] The judging module is configured to determine, after the network device under test receives the response packet, whether the response packet is correct. If the packet is correct, the processing module performs the steps of extracting the routing item information and updating the routing table; otherwise, discarding the response Message.

 [49] After testing the routing table depth of the network device under test, the initialization module is further configured to set different reachable route item information and encapsulate the packet into different response messages; the message sending module is further used to test The network device sends different response packets generated by the initialization module. When the routing table of the network device under test cannot add a table entry, the processing module determines the depth of the routing table according to the number of entries in the routing table, that is, the routing table. The number of entries in the table is the depth of the routing table.

[50] After testing the route convergence capability of the network device under test, the initialization module is further configured to configure a reachable route (that is, a METRIC value between 1 and 15) and encapsulate the packet into a Response packet. The sending module sends the network device to be tested; and then initializes the module and then modifies the reachable route to be unreachable. The route (that is, the METRIC value is changed to 16, the other information is unchanged), and is encapsulated into a Response message, which is sent by the message sending module to the network device under test; this process is repeated, that is, the initialization module user alternately modifies the above route. The reachable and unreachable packets are encapsulated into corresponding Response packets, and the packet sending module is configured to alternately send corresponding Response packets to the network device under test. After receiving the response packet, the network device to be tested extracts the RTE information. For the reachable route, the network device under test adds a routing entry to the routing table. For the unreachable route, the network device under test will be able to The metric value of the routing entry is unreachable. Change the METRIC value of the original reachable routing entry to 16. The processing module determines the route convergence capability of the tested network device according to the capability of the network device under test to update the routing table.

 The embodiments described above are only preferred embodiments of the present invention, and the usual changes and substitutions made by those skilled in the art within the scope of the technical solutions of the present invention are included in the scope of protection of the present invention.

Claims

Claim  [1] A method for testing the performance of a routing information protocol of a network device, characterized in that the method comprises the following steps:  Establishing a routing information protocol session with the network device under test, setting routing item information, and encapsulating the routing item information into a response message, and determining that the multicast sending the response message to the network device under test; The network device measures the processing result of the received response message, and determines the routing information protocol performance of the tested network device.  [2] The method for testing the performance of the routing information protocol of the network device according to claim 1, wherein the step of processing the received response packet by the network device under test is specifically: After receiving the response packet, the device extracts the routing item information in the response packet, and updates the routing table according to the extracted routing item information.  [3] The method for testing the routing information protocol performance of the network device according to claim 2, wherein the method further comprises:  After receiving the response packet, the network device under test determines whether the response packet is correct, and if yes, performs the steps of extracting routing item information and updating the routing table; otherwise, discarding the response packet.  [4] The method for testing the performance of the routing information protocol of the network device according to claim 1, wherein the step of transmitting the response packet to the network device under test is determined by :  And transmitting, to the network device under test, the response packet containing the information of the different reachable routing entries, until the routing table of the network device under test cannot add the entry, and the entries in the routing table are The number is the depth of the routing table. [5] The method for testing the performance of the routing information protocol of the network device according to claim 1, wherein the step of transmitting the response packet to the network device under test is determined by : Alternatingly, the multicast transmission includes a response packet including a reachable route and a response packet including the unreachable route to the network device under test, where the reachable route and the unreachable route have the same destination IP address; Determining the ability of the network device under test to update the routing table, and determining the network device to be tested Route convergence capability.  [6] 6. A storage medium, characterized in that the storage medium stores an application program for testing routing protocol protocol performance of the network device, and the application program includes the following steps: establishing routing information with the network device under test. a protocol session, the routing item information is set, and the routing item information is encapsulated into a response message, and the multicast message is sent to the network device under test according to the multicast network; and the received response is received according to the measured network device. The processing result of the packet determines the routing information protocol performance of the network device under test.  [7] The storage medium according to claim 6, wherein the storage medium is: ROM/R  AM, disk, or CD.  [8] 8. A system for testing the performance of a routing information protocol of a network device, wherein the system comprises:  An initialization module, configured to establish a routing information protocol session with the network device under test, set routing item information, and encapsulate the routing item information into a response message;  a message sending module, configured to multicast the response message generated by the initialization module to the network device under test;  And a processing module, configured to determine, according to the processing result of the received response message by the network device under test, the routing information protocol performance of the network device under test. [9] The system for testing the routing information protocol performance of the network device according to claim 8, wherein the processing module specifically includes:  a routing update unit, configured to: after the network device under test receives the response packet sent by the packet sending module, extract routing item information in the response packet, and update according to the extracted routing item information a routing table of the network device under test;  And a result processing unit, configured to determine, according to a result of the routing update unit updating the routing table of the network device under test, the routing information protocol performance of the network device under test. [10] The system for testing the routing information protocol performance of the network device according to claim 8, wherein the system further comprises: a determining module, configured to determine, after the response network packet, the response packet, whether the response packet is correct, and if the packet is correct, the processing module extracts routing item information and updates The step of routing the table; otherwise, the response message is discarded. [11] The system for testing the routing information protocol performance of the network device according to claim 8, wherein the initialization module is further configured to set different reachable routing item information, and encapsulate the different response reports. The packet sending module is further configured to: multicast to send the different response packets generated by the initialization module to the network device under test, until the routing table of the tested network device cannot add an entry. The processing module determines the depth of the routing table according to the number of entries in the routing table.  [12] 12. The system for testing the routing information protocol performance of the network device according to claim 8, wherein the initialization module is further configured to set a reachable route and an unreachable route with the same destination IP address, and Encapsulating into different response messages; the message sending module is further configured to alternately determine, by the multicast, sending different response messages generated by the initialization module to the network device under test; The ability of the network device to be tested to update the routing table determines the route convergence capability of the network device under test.