Test method and system for flow control device and data stream playback device

Abstract

The invention provides a test method and a system for a flow control device and a data stream playback device, and the method comprises the following steps: a current data stream message is obtained from a data source file, the source IP address of which is a local IP address, and a plurality of continuous data stream messages which are captured from application programs are stored in the data source file; the source IP address and a source MAC address in the current data stream message are replaced by the local IP address and a local MAC address, and a destination IP address and a destination MAC address in the current data stream message are replaced by a peer-side IP address and a peer-side MAC address; and the current data stream message, the address information of which is replaced, is sent to the flow control device, so as to test the recognition rate of an application protocol of the flow control device. By imitating a real network topology environment, the flow control device is tested; and an NAT function of the flow control device is effectively detected at the same time of detecting the recognition rate of the application protocol of the flow control device.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a testing method and system for flow control equipment and a data stream playback device. Background technique [0002] In today's high-speed and large-capacity Internet environment, telecom networks are gradually moving towards network convergence, service convergence, and application convergence based on IP bearer networks. Based on various application roles, the government, operators, enterprises, and home users all have higher requirements for the service control capability of the network. In order to meet the needs of different levels of users for network traffic management, it is necessary to set up corresponding traffic control devices in the network to identify and distinguish the traffic of various application protocols on the network, and further to identify the traffic on this basis. The data flow is processed by flow control, network accounting, content filter...

AI Technical Summary

Problems solved by technology

[0005] However, this test method has at least the following defects: since the flow control device is usually set between the internal network device and the external network server, the data packets received by it are usually data packets in two sending directions, and the current test The tool simply replays all the intercepted data streams directly to the flow control device, and does not distinguish the direction in which the data streams are sent. This will cause a mismatch between the packets received by the flow control device and the real network conditions during the test.

Furthermore, for the data flow intercepted from the user terminal application program, the data packets received by the application program included in it are returned from the external network server, and these packets are sent from the external network to the internal network. In the process, the network address translation (Network Address Translation, NAT for short) has been performed by the flow control device, so if the data flow packets after NAT conversion are directly sent to the flow control device, it will not be able to simulate the real network topology environment, to test the NAT capability of the flow control device

Images