A method for detecting and locating interconnection network faults based on pairing test
A fault detection and positioning method technology, applied in the field of interconnection network, can solve problems such as memory access errors, PCIE interface instability, large time overhead, etc., achieve rapid detection and positioning, shorten troubleshooting time, and improve availability.
Active Publication Date: 2021-10-29
JIANGNAN INST OF COMPUTING TECH
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Problems solved by technology
Some of these faults are easy to locate, such as PCIE link reset, HCA port Down, etc.; some are difficult to find, such as memory access errors, severe IB port packet loss, unstable PCIE interface, etc. When such errors occur, the error phenomenon It is difficult to locate the specific cause of the failure when running the project hangs or exits directly
The increase of the network scale leads to a significant increase in the time for a fault detection
Commonly used diagnostic tools such as ibnetdiscover, ibibqueryerrors, ibportstate, etc. have problems such as high time overhead and difficulty in accurately locating faults in large-scale interconnected networks
Method used
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[0015] The present invention will be further described below in conjunction with drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some parts related to the present invention are shown in the accompanying drawings but not the whole content. Unless otherwise defined, all technical and scientific terms used herein are related to the technical field of the present invention. The skilled person generally understands the same meaning. The terms used herein are for describing specific embodiments only, and are not intended to limit the present invention.
[0016] Please refer to figure 1 as shown, figure 1 It is a flowchart of a method for detecting and locating an interconnection network fault based on a pairing test provided by an embodiment of the present invention.
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The invention discloses a method for detecting and locating interconnection network faults based on pairing tests. The method detects and locates functional faults based on pairing and two-pass screening, and detects and locates performance and routing faults based on layering and pairing. The invention is a large-scale interconnection network fault detection and positioning method based on pairing and multi-pass screening, which can quickly detect and locate faults in the network, shorten the time for troubleshooting, and improve the availability and ease of use of large-scale networks sex.
Description
technical field [0001] The invention relates to the field of interconnection networks, in particular to a method for detecting and locating interconnection network faults based on matching tests. Background technique [0002] In high-performance computing, big data, cloud computing, artificial intelligence and other fields, high-speed interconnection networks including Infiniband have been more and more used. Among them, Infiniband is a high-performance network transmission solution featuring high bandwidth and low latency, and is currently the preferred choice for building ultra-large-scale, low-latency, and high-bandwidth data transmission networks. A large-scale interconnection network system may contain hundreds of thousands of nodes and ports; various network failures may occur during system operation, and there are various types of failures, such as hardware failures including link Down, link rate degradation, link Route packet loss, etc., software faults include rout...
Claims
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IPC IPC(8): H04L12/24
CPCH04L41/0677
Inventor 陈淑平王申彭龙根周慧霖卢德平钱炜
Owner JIANGNAN INST OF COMPUTING TECH