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Method and device for monitoring network service quality

A quality of service, monitoring technology, used in data exchange networks, digital transmission systems, electrical components, etc.

Active Publication Date: 2016-06-22
INTERDIGITAL CE PATENT HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, a datagram whose address is a unicast address can only be delivered to one socket

Method used

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  • Method and device for monitoring network service quality
  • Method and device for monitoring network service quality
  • Method and device for monitoring network service quality

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Embodiment Construction

[0015] Various aspects of embodiments of the invention are described below. For purposes of illustration, specific structures and details are set forth to provide a better understanding. However, it will be understood by one of ordinary skill in the art that the present invention may be practiced without these specific details.

[0016] In order to improve the accuracy of QoE (Quality of Experience) evaluation of media applications or services, it is necessary to monitor and measure QoS (Quality of Service) of communication networks. There are certain known QoS measurement methods, all of which require sniffing the relevant packets. The captured packets can then be tracked and analyzed to obtain real-time QoS metrics, such as PLR (packet loss rate), PLF (burst packet loss frequency), etc.

[0017] Media packets can be captured at different layers of the TCP / IP protocol stack. For example, raw packets can be captured at the data link layer via BPF (BSD (Berkeley Software Dis...

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Abstract

When capturing packets at the application layer for QoS monitoring purposes, the QoS monitor needs to be bound to the same IP address and port of the media player. However, due to the unicast duplicate binding problem, the unicast packets received by the QoS monitor will not be received by the media player, which means that the QoS monitor will affect the operation of the media player. The present invention provides a solution, when the QoS monitor receives a unicast packet, it forwards the packet to the socket of the media player. In order to ensure that the forwarded packet can be received by the socket of the media player, the QoS monitor replaces the destination IP address of the unicast packet with the local host address (127.0.0.1). According to the present invention, a QoS monitor is able to sniff a media player without interfering with the normal operation of the media player.

Description

technical field [0001] The present invention relates to methods and devices for monitoring network quality of service (QoS). Background technique [0002] In a TCI / IP communication network, a session needs to be established between two applications on different hosts for communication, and the session usually includes a source IP address and port and a destination IP address and port. When a host is established for a specific session (the host is an application programming interface through which applications can access the TCP / IP protocol stack to perform inter-program communication), packets in the session can be received or sent through the host . [0003] For the TCP / IP network QoS monitor at the application layer, the general idea is to bind the socket of the monitor's sniffing application (sniffing application) to the same destination IP address and port of the application to be monitored. [0004] SO_REUSEADDR is one of the general socket options, which can fully co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/70H04L45/74
CPCH04L41/5009H04L65/80H04L65/611H04L67/61H04L45/74H04L43/00H04L69/00
Inventor 王显雷陈仁雷廖宁
Owner INTERDIGITAL CE PATENT HLDG