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A network testing system

A technology of network test and tester, applied in the field of communication, can solve problems such as the inability to meet the needs of users

Active Publication Date: 2015-08-05
RAISECOM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] With the development of network services, the current network services transmitted by SHDSL can no longer meet the needs of users

Method used

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  • A network testing system
  • A network testing system
  • A network testing system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Embodiment 1, a network testing system, comprising:

[0059] The first device under test DUT1, the second device under test DUT2;

[0060] SHDSL cable or SHDSL line emulator, used to connect the first and second devices under test;

[0061] Ethernet tester, for constructing Ethernet data packets and sending to the first and second devices under test;

[0062] A first jitter / wander tester, configured to construct a TDM service data packet and send it to the first device under test;

[0063] The first device under test is used to pass the TDM service data packet received from the first jitter / wander tester and the Ethernet data packet received from the Ethernet tester through the SHDSL cable or SHDSL line The emulator sends to the second device under test; and sends the Ethernet data packet received from the second device under test to the Ethernet tester;

[0064] The second device under test is used to send the Ethernet packet received from the Ethernet tester to the...

Embodiment 2

[0069] Embodiment 2 is a network testing system, the structure of which is the same as that of Embodiment 1. It may also include the first clock source, the first device under test adopts the slave E1 clock mode, and the second device under test adopts the clock recovery mode from the SHDSL line.

[0070] In this embodiment, the first jitter / wander tester may, but is not limited to, send the TDM service data packet to the first device under test through a single line to simulate a single-channel TDM service; the Ethernet tester may but It is not limited to sending the Ethernet data packet to the first and second devices under test through a single line to simulate a single-channel ETH service.

[0071] In this embodiment, when the first and second devices under test are connected through SHDSL cables, the schematic diagram of the network test system is as follows figure 2 As shown, there is no distance setting for the SHDSL line. When the first and second devices under test...

Embodiment 3

[0101] The third embodiment is a network testing system, the structure of which is the same as that of the first embodiment. It may also include the first clock source, the first device under test adopts the slave E1 clock mode, and the second device under test adopts the clock recovery mode from the SHDSL line.

[0102] In this embodiment, the first jitter / drift tester sends the TDM service data packet to the first device under test through two or more lines;

[0103] The second device under test also sends the TDM service data packet received from the first device under test to the first jitter / wander tester through two or more lines.

[0104] In this embodiment, when the first and second devices under test are connected through SHDSL cables, the schematic diagram of the network test system is as follows Figure 4 As shown, there is no distance setting for the SHDSL line. When the first and second devices under test are connected through the SHDSL line emulator, the schema...

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Abstract

The invention discloses a network testing system which comprises first tested equipment, second tested equipment, a single-pair high-speed digital subscriber line (SHDSL) cable or an SHDSL line emulator, an Etheric tester and a first jitter / drift tester; the Etheric tester is used for constructing an Etheric data packet; the first jitter / drift tester is used for constructing a time division multiplexing (TDM) business data packet; the first tested equipment sends the TDM business data packet received from the first jitter / drift tester and the Etheric data packet received from the Etheric tester to the second tested equipment; the Etheric data packet received from the second tested equipment is sent to the Etheric tester; the second tested equipment is used for sending the Etheric data packet received from the Etheric tester to the first tested equipment; the Etheric data packet received from the first tested equipment is sent to the Etheric tester, and the TDM business data packet received from the first tested equipment is sent to the first jitter / drift tester. According to the network testing system, a transmission network containing TDM business and Ethernet (ETH) business can be tested.

Description

technical field [0001] The invention relates to the communication field, in particular to a network test system. Background technique [0002] SHDSL (Symmetrical High bite Digital Subscriber Line) is a technology defined by ITU-T (International Telecommunication Union Telecommunication Standardization Organization) that provides bidirectional symmetrical bandwidth data services on a single twisted pair line. Conforms to the ITU G.991.2 recommended standard. Due to the use of 16-level trellis coded pulse amplitude modulation (TC-PAM) technology with superior performance, the transmission spectrum is compressed, the anti-noise performance is improved, and the transmission distance is extended. SHDSL is symmetrical Type DSL, its characteristic is that the transmission rate of up and down is the same, the maximum up and down speed of a single line pair is 5.7Mbit / s, and the transmission distance is 3-6km. [0003] The transmission distance of SHDSL is directly proportional to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26
Inventor 秦萌刘少华
Owner RAISECOM TECH