Efficient cache management system for Ethernet switch

A buffer management and switch technology, applied in the transmission system, electrical components, etc., can solve the problem of increased switching delay, achieve the effects of reducing switching delay, ensuring service quality, and saving storage resources

Pending Publication Date: 2022-05-24
XIAN MICROELECTRONICS TECH INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of this method is that the data needs to be cached twice, and the exchange delay will also increase

Method used

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  • Efficient cache management system for Ethernet switch
  • Efficient cache management system for Ethernet switch

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Embodiment Construction

[0038] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0039] like figure 1 As shown, an efficient cache management system oriented to an Ethernet switch includes a cache management module 1, a queue management module 2, an ingress control module 3, an egress control module 4, a QoS control module 5 and a register module 6;

[0040] The cache management module 1 is used to realize the allocation and release of the cache space.

[0041] Data packets to be forwarded are stored in the data cache space of the cache management module 1 . When the receiving port receives a good data packet, the cache management module 1 is responsible for allocating corresponding space for it, generating descriptor information at the same time, and sending it to the queue management module; if the data packet cannot find the forwarding port and exceeds the specified length , the port can not receive jumbo frames or other control gives a disca...

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Abstract

The invention discloses an efficient cache management system for an Ethernet switch, which is characterized in that a cache management module is divided through a queue management module, a cache space is divided, and an entry control module is used for controlling and monitoring the cache use condition of an entry port CoS queue; flow classification is carried out on the received data packets, the received data packets are put into different CoS queues according to classification results, flow control and congestion processing of ports and queues are achieved, reasonable use of cache is achieved for dynamic management, management of exit queues is achieved through a double-linked list management technology, secondary cache of the data packets is not needed, storage resources are saved, and the method and the device have the advantages of being simple in structure and convenient to use. The switching delay is reduced, and the service quality is ensured through flow classification, flow supervision and shaping and congestion management.

Description

technical field [0001] The invention belongs to the field of computer network and computer system structure, relates to a gigabit Ethernet switch cache management method, in particular to an efficient cache management system oriented to an Ethernet switch. Background technique [0002] In recent years, with the rapid development of communication services, Ethernet switches, as the key equipment for network communication, have developed very rapidly and have been continuously improved in all aspects. Looking at the current development trend, Ethernet switches have the following development characteristics, higher speed, greater port density, and higher intelligence. There are three main switching modes of switches, cut-through, store-and-forward, and fragment isolation. Among them, the store-and-forward switch is widely used because it can perform error detection on incoming data packets, effectively improve network performance, and more importantly, it can support the coope...

Claims

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Application Information

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IPC IPC(8): H04L67/568H04L47/12H04L47/24H04L47/215
CPCH04L47/12H04L47/24H04L47/215
Inventor 赵文琦史阳春李龙飞李小波冯海强王剑峰杨靓
Owner XIAN MICROELECTRONICS TECH INST
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