A method, device and system for implementing delay detection
A detection device and time delay technology, applied in the field of communication, can solve the problems of high deployment cost and complex implementation, and achieve the effect of solving the complex implementation.
Active Publication Date: 2020-01-03
HUAWEI TECH CO LTD
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[0009] Embodiments of the present invention provide a method, device and system for implementing delay detection, which are used to solve the problems of complex implementation and high deployment cost in the prior art
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[0048] The technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention.
[0049] figure 1 A schematic diagram of a network structure of a system 100 for implementing delay detection provided by an embodiment of the present invention, the system 100 includes a detection device 110 and a communication network 120, and the communication network 120 includes at least two network elements, wherein the detection device 110 It is connected to any network element (such as network element P1) in the communication network 120. The communication network 120 may specifically be a data center network, a wide area network, a local area network, and the like. The network elements in the communication network 120 may specifically be routers, switches, and the like.
[0050] The detection device 110 can be used to detect the two-way delay and the one-way delay between any two network elemen...
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The invention discloses a method and device for realizing delay detection, the method comprising: the detection device determines to transmit the first message with the first priority through the first loopback path composed of the first sub-path and the second sub-path time delay T0, determine the time delay T1 when transmitting the second message through the second loopback path composed of the first sub-path, the second sub-path, the third sub-path and the fourth sub-path, The second message is transmitted on the first subpath and the second subpath with a first priority, and is transmitted on the third subpath and the fourth subpath with a second priority, And determine the time delay between the first network element and the second network element according to T0 and T1. According to the method, the time delay between any two network elements can be detected only by implementing the detection function in the detection device, thereby solving the problem in the prior art that each detected network element has a detection function. More complicated and costly to deploy.
Description
technical field [0001] The present invention relates to the technical field of communication, in particular to a method, device and system for realizing delay detection. Background technique [0002] In a communication network, delay is a very important parameter reflecting the quality of the communication network. Especially in high-throughput data center networks, large delays have a great impact on services. Accurate detection of delay is of great significance for real-time monitoring of network quality and locating problems. [0003] The time delay is mainly composed of 3 parts: serialization time delay, transmission time delay and switching time delay. [0004] Serialization delay: When a message is transmitted, it needs to be serialized on the transmission line. The time from the first bit (bit) of the message to the serialization of the last bit is the serialization delay. . Serialization delay = packet size / network bandwidth. For example, if a 64-byte packet is ...
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IPC IPC(8): H04L12/26
CPCH04L43/0852H04L43/0858H04L43/0864H04L43/12H04L12/42H04L43/50
Inventor 李国平施大年徐晓旸
Owner HUAWEI TECH CO LTD