A Dynamic Mark Threshold Cache Management Method for Microburst Suppression
A buffer management and micro-burst technology, applied in the transmission system, electrical components, etc., can solve the problems that affect the completion time of small streams, and do not distinguish between large streams and small streams, so as to reduce space complexity, low delay, Reduce the effect of AFCT
Active Publication Date: 2022-07-12
NINGBO UNIV
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Problems solved by technology
DCTCP only needs to modify the software protocol stack on the host side and configure a simple ECN mark on the switch. However, DCTCP large flow and small flow are in the same queue, and there is no distinction between large flow and small flow, causing small flow packets to be queued after large flow packets , which affects the flow completed time (flow completed time, FCT) of small flows
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[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of the present invention.
[0031] According to an embodiment of the present invention, there is provided a dynamic mark threshold buffer management method for micro-burst suppression.
[0032] like Figure 1-Figure 2 As shown, the dynamic mark threshold cache management method for micro-burst suppression according to the embodiment of the present invention includes the following steps:
[0033] Based on the network traffic distribution of the data center in advance, three types of prioriti...
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The invention discloses a dynamic mark threshold cache management method for micro-burst suppression, which relates to the technical field of data traffic processing and includes the following steps: pre-calibrating three types of priorities of senders based on data center network traffic distribution; enabling ECN mark thresholds at the same time Parameters, including the ECN mark of the switch port and the ECN mark of a single queue in the switch; perform packet enqueue management and packet dequeue scheduling. According to the different characteristics of ACK / ECN data packets, short-flow and long-flow data packets, the invention establishes a multi-level priority queue of flows, and the HDCQ method in the switch dynamically adjusts the ECN mark threshold of the short-flow queue according to the current load state, and according to The current cache state resets the packet priority, which effectively reduces the AFCT of the short flow, while maintaining the throughput of the long flow, reducing the space complexity of the method, and making the switch in the state of shallow buffering to ensure the low time of the data center network. extension.
Description
technical field [0001] The present invention relates to the technical field of data traffic processing, and in particular, to a method for managing dynamic mark threshold buffers with micro-burst suppression. Background technique [0002] In recent years, with the rapid development of network applications, many high-performance data centers have been established around the world to carry most of the current Internet data traffic. According to the size of the data flow, it can be divided into large flow (long flow) and small flow (short flow). Since large streams and small streams originate from different applications, they correspond to different requirements, such as applications such as regular synchronization of massive data, data reorganization, backup, and replication, which need to ensure their stable and high throughput. However, applications with small traffic, such as Web search access, need to respond quickly to users. Faced with the traffic characteristics of di...
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IPC IPC(8): H04L47/6275H04L47/50H04L49/111
CPCH04L47/6275H04L47/50H04L49/30
Inventor 江先亮于彦
Owner NINGBO UNIV