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Time reducing method and network stimulating system applying same

A network simulation, time technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as misalignment

Active Publication Date: 2014-08-27
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the simulation results obtained by the network emulator will become completely inaccurate due to the path variation factors and transmission delay variation factors of the network connection

Method used

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  • Time reducing method and network stimulating system applying same
  • Time reducing method and network stimulating system applying same
  • Time reducing method and network stimulating system applying same

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0018] An embodiment of a network emulation (Emulation) system uses a Connection Oriented Protocol (Connection Oriented Protocol) network path to connect a network emulator and a device under test, and uses a sequence recovery circuit to make packets transmitted between the network emulator and the device under test have An essentially fixed transmission delay time.

[0019] Please refer to figure 1 , which illustrates a block diagram embodiment of a network emulation system. The network simulation system 1 is used to perform network simulation operations on N devices under test, where N is a natural number. In one example, N is equal to 2, and the network emulation system 1 is used to perform network emulation operations on the devices 2 and 3 to be tested. The network emulation system 1 includes a network emulator 10 , timing recovery circuits 14 , 15 , 16 and 17 . Timing restoration circuits 14 and 15 connect network emulator 10 to Connection Oriented Protocol (Connectio...

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Abstract

The invention discloses a time reducing method and a network stimulating system applying the same. The time reducing method is applied to each piece of N equipment to be tested (N is a natural number) of a network simulating system, which comprises the following steps of: sending a first group by a network simulator; and enabling the first group to enter a connection oriented protocol and recording first time of the network to be a first time stamp in the first group; receiving the first group to acquire the first time stamp and a second time stamp of second time when the first group is away from the connection oriented protocol; calculating according to the first and second time stamps to acquire first actual transmission delay time; calculating according to the maximum transmission delay time and the first actual transmission delay time to acquire first awaiting time; and then delaying the first awaiting time to the first group and outputting to each piece of N equipment to be tested.

Description

technical field [0001] The invention relates to a time restoration method, and in particular to a time restoration method applied in a network emulation (Emulation) system. Background technique [0002] In today's era of rapid technological development, various network devices are constantly being developed to facilitate people's lives. Generally speaking, during the development stage of network equipment products, simulation tests are required to ensure that their functions can meet the expectations of developers. In the prior art, the multi-application DUT interacts with the virtual topology inside the network emulator, and uses the network emulation (Emulation) testing technology to test the network equipment. In the emulation test, the device under test needs to establish a connection with the network emulator through the network interface to participate in the operation and testing of the network emulator. [0003] Generally speaking, when the packet is transmitted on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L12/70H04L1/16
Inventor 王协源黄昱铭周智良林志哲辜博熙杨人顺
Owner IND TECH RES INST