lldp message transmission method and dcb equipment

Abstract

The present invention relates to an LLDP packet transmission method and a DCB device carrying an application priority TLV. The method comprises: DCB equipment configuring an extended LLDP packet carrying an application priority TLV, and extending the field of the application priority TLV to indicate the application Whether the content of the priority message is continuous or not; fill in the corresponding service data according to the continuity of the service data of the current port of the DCB device, and perform a corresponding setting operation on the sequence bit; send the extended LLDP message filled with data to Peer device. Through optimization, the present invention can greatly shorten the content length of the message, reduce the transmission of data, and further reduce the consumption of CPU resources.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an LLDP (LinkLayer Discovery Protocol) carrying application priority (APPP, Application priority) TLV (Type Length Value, type length value) in lossless Ethernet control transmission Message transmission method and DCB equipment. Background technique [0002] The data center is the provider center of enterprise application business services and the center of data calculation, exchange and storage. It combines advanced network technology and storage technology, carries more than 80% of the service requests and data storage capacity in the network, and provides services and operating platforms for the healthy operation of customers' business systems. [0003] In order to integrate enterprise intranet and Ethernet, the concept of enhanced Ethernet is proposed at present. Enhanced Ethernet allows different services to be divided, so as to meet the needs of ordinary E...

AI Technical Summary

Problems solved by technology

The peer device knows which service packets correspond to which priority by obtaining the configuration of the peer. The structure of the LLDP TLV packet is as follows: figure 1 shown; because a service packet information in LLDP needs to occupy three bytes of the TLV field (such as figure 2 As shown), these business packets are divided according to the port number or protocol type, so the problem is that the length of the packet occupied by the service division information in the packet is very likely to exceed the maximum length of the packet; in addition, even if Divide only according to the port number, and sometimes it needs to be sent in packets, and the split packets may be as many as hundreds of packets, or even more, which increases the consumption of CPU resources, and may even affect the performance of other services. normal operation

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