Provider Backbone Transport Technology  

作　　者：Zhang Zailong 1,Fang Jun 2,Yu Jinghai 2(1.Institute of Information and Network Technologies,Nanjing University of Posts and Telecommunications,Nanjing 210003,P.R.China 2.ZTE Corporation,Shenzhen 518057,P.R.China) 

出　　处：《ZTE Communications》2009年第1期25-29,共5页中兴通讯技术（英文版）

摘　　要：The Metro Ethernet Forum(MEF) put forward the concept of Carrier Ethernet(CE) to improve Ethernet technology and make it a transmission convergence layer solution for Next Generation Network(NGN).Provider Backbone Transport(PBT) is the result of the enhancement and improvement of the early Ethernet technologies and it is the new version of CE implementation technology and standard which is promising.Through studying the PBT-related technologies,PBT network structure,PBT advantages as the transmission convergence layer solution and its trend of future development,it is concluded that PBT can be used as the preferred technology of the transmission convergence layer in the NGN,though there are some problems to be solved for PBT.The Metro Ethernet Forum(MEF) put forward the concept of Carrier Ethernet(CE) to improve Ethernet technology and make it a transmission convergence layer solution for Next Generation Network(NGN).Provider Backbone Transport(PBT) is the result of the enhancement and improvement of the early Ethernet technologies and it is the new version of CE implementation technology and standard which is promising.Through studying the PBT-related technologies,PBT network structure,PBT advantages as the transmission convergence layer solution and its trend of future development,it is concluded that PBT can be used as the preferred technology of the transmission convergence layer in the NGN,though there are some problems to be solved for PBT.

关 键 词：PBT PBB Provider Backbone Transport Technology MAC 

分 类 号：TN915[电子电信—通信与信息系统]