Research On OAM Of PTN Equipment

Traditional networks can not satisfy the rapid development of business requirements, if the IP to the traditional telecommunications network is a kind of subversion, then the PTN it is that the subversion of the most important thing a gravel road. With the IP-based mobile network, he shook the last bastion of voice service. With the growth of 3G data services, any one operator can not avoid PTN.In-this paper, first of all from the existing SDH, MSTP technical aspect, discussed the SDH,MSTP technology carrying the limitations of existing business, which leads to PTN technology; then analyzed and compared two kinds of PTN technology: T-MPLS/MPLS-TP and PBT/PBB-TE. And discuss its advantages and disadvantages; then introduced the T-MPLS based on the PTN of the key technologies:Web services, as well as protection switching mechanism which has been studied and discussed, and the, but also on the time synchronization mechanism in 1588 how the PTN was applied to a discussion and explanation, with an emphasis in the one-step analysis of 1588 and the two-step way to achieve the advantages and disadvantages;Focus on analysis of PTN as one of the key technologies OAM, from the PTN device to illustrate the hierarchical OAM functionality, in-depth analysis of newspaper text OAM segment, followed by analysis of OAM frames in the network application, a detailed description of OAM packet and business data packet transmitted over.the network situation, the final adoption of Fiberhome PTN equipment CiTRANS 640 verify OAM functions and with experimental results. All the experimental data are in line with protocol standards. As well as MPLS-TP OAM to discuss analysis of the latest MPLS-TP OAM protocol needs to assess the existence of the MPLS-OAM tool for compliance with the requirements of MPLS-TP to determine which tools will be expanded to meet the requirements, and which new tools need to be redefined. And to achieve the MPLS-TP OAM functions put forward his proposals. This MPLS-TP OAM further study has certain reference value.