本版基于3GPP技术规范TS 29.060（通用分组无线业务隧道协议Gn和Gp接口Release99）2001年12月版本制定。是目前所能搜到的GTP协议规范的中文版。-The present document has been developed within the 3rd Generation Partnership Project (3GPP TM) and may be further elaborated for the purposes of 3GPP. The present