The Key Technique Of10G Epon System Supporting Cloud Computing Service

Nowadays broadbandization and IP-based trend has become the basic feature of the new generation telecommunication network in21century. The Access Network, which works as bridge while users entering into the metropolitan area network, has been proved to be the restriction of networks’Broadband and the full service development, and bandwidth speeding up has been becoming the urgent demand. With the improvement of optical fiber communication technology,10G EPON technique has been the industry focus due to its large bandwidth capacity, the simple technology and suitable to carrying IP service. This paper aims to design and implement the10G EPON experimental systems and the main research content is stated below:Firstly, the overall scheme design of10G EPON experimental system is completed. The demand analysis is accomplished base on the fully analyzing of the relevant standard and the key technique of10G EPON. Then the structure design of10G EPON experimental system is achived according to the demand analysis.Secondly, the design and implementation of OLT and ONU’s embedded software in10G EPON experimental system are completed, including the overall design and the detailed design of embedded software and the software development based on Vxworks operating system; The test verification result shows that10G EPON embedded software can realize ONU’s automatic discovery and registration, Dynamic Bandwidth Allocation, Operation Administration and Maintenance and alarm management, etc. Thirdly, analyzing the service feature of Cloud Computing Service with rapidly growing traffic and the requirement of upstream Qos assurance, the issue designed a DBA algorithm to ensure multi service’s Quality of Service (Qos). The simulation result shows that the algorithm has made each service’s Qos target (Including delay, delay variance and packet loss rate) to meet the requirement in Access Network; Under high load condition the high priority service’s delay in this algorithm is1-2milisecond less than other algorithms without Qos assurance, without packet loss at the same time.