AVP三元组协议包，　　RADIUS通信的基础协议，包头为20字节，每项数据采用属性ID|长度|内容三元组形式. 可以根据HASHTABLE结构构造AVP的BYTE数组，也可以根据BYTE数组构建AVP包的HASHTABLE内容。-AVP triple package deal, RADIUS communication the basis of the agreement, Baotou is 20 bytes, each of the data attribute ID | Length | content triples form. HashTable structure based on the BYTE array AVP can also be constructed according to BYTE array AVP content package HashTable.