A comprehensive explanation of the router Test Method

I have learned some useful things about the vro test. So I have studied the types and methods of the vro test. I would like to share them with you here, hoping to help you. With the rapid development of the information industry, computer network technology has been widely used.

Computer networks have become an essential part of modern work and life. As the core device of the computer network, routers are widely used in the network. High-end router testing has now become an important telecom-level device on the public network from enterprise-level devices. With the increasing popularity of the Internet and its importance in daily life, the performance, function, security, reliability, and other indicators of the router test become more and more important. Therefore, it is important and necessary to test the vro. Router Test Specification mainly has the following communication industry standards to specification: YD/T1156-2001 "router Test Specification-high-end router"; YD/T1098-2001 "router Test Specification-low-end router". The above standards are made according to the following standards: YD/T1097-2001 "router equipment technical specifications-high-end routers"; YD/T1096-2001 "router equipment technical specifications-low-end routers".

The test description in this article is mainly based on the above router test specifications. However, as the above test specification is only used as the device inbound test standard, it is an entry-level test, so we will focus on some additional test content based on the above specifications.

Purpose and content of the test

A router is a device that forwards packets to achieve network interconnection. It supports multiple protocols, such as TCP/IP, SPX, IPX, and AppleTalk ), data packets can be forwarded at multiple layers, such as the data link layer, network layer, and application layer ). Two or more logical ports need to be connected to the vro test, with at least one physical port. The router determines the output port and the next router address or host address based on the network layer address in the received packet and the route table maintained inside the router, and overwrites the link layer data packet header. The route table must be dynamically maintained to reflect the current network topology. A vro dynamically maintains a route table by exchanging route information with other vrouters.

1) vro category

The current vro classification methods vary. Various classification methods are associated, but they are not completely consistent. Generally, you can use methods such as router capability classification, structure classification, network location classification, function classification, and performance classification. In the formulation of vro testing standards, high-end and low-end vrouters are classified by capability. A router with a backplane switching capability greater than 20 Gbit/s and a throughput greater than 20 Mbit/s is a high-end router. The exchange capability is tested as a low-end router under the above data. Correspondingly, the router test specification is divided into the high-end router test specification and the low-end router test specification.

2) Purpose and content of the test

Test the router, you can find out which routers can provide the best performance, the behavior of routers under different loads, the design parameters of the router used in the modeled network, whether the router can handle traffic bursts, the performance limits of the router, and the router test whether different service quality, the impact of different architecture on the functions and performance of the router, the functional characteristics and performance indicators of the router, and whether the use of the router affects network security, the consistency of the implementation of the router protocol, and vro reliability and advantages and disadvantages of vro products.

Low-end router testing equipment testing mainly includes: routine testing, that is, electrical security testing; Environmental testing, including high and low temperature, humidity testing and high and low temperature storage testing; physical interface testing, test the electrical and physical test properties of low-end routers that may have interfaces; protocol consistency test; test protocol implementation consistency; Performance Test, test the main performance of the router; management test, this module mainly tests the support of vrouters for non-large network management functions.

High-end router tests mainly include interface tests, interface tests available for high-end router tests, ATM Protocol tests, requirements for testing ATM protocols, PPP protocol tests, and PPP protocol consistency tests. ipprotocol tests, test the IP protocol consistency, test the routing protocol, test the routing protocol consistency, test the network management function, test the gateway function, test the performance and QoS, test the router performance and QoS capability, and test the network synchronization, test the synchronization and timing capabilities of the equipment; test the reliability and verify the reliability of the equipment; test the power consumption of the entire machine; test the environment, including high and low temperature, humidity test and high and low temperature storage test. The two test specifications have different organizational arrangements due to the different drafting units and drafting time. In addition to the above tests, we recommend that you consider the test items listed below during the test.

1) Functional testing: It mainly verifies whether the product has every function designed.
2) stability and reliability test: Generally, the method of increasing the load is adopted to evaluate and analyze the running capability of the equipment under long and high load conditions.
3) interoperability test: different network products must be able to communicate with each other. Interoperability test checks whether a network product works well in a network environment that is interconnected by multiple network products from different manufacturers, such as verifying the interoperability between a router test and Cisco products, interoperation between vswitches and Cisco, 3Com, Lucent, Intel, etc.