在具体系统中,我们需要用具体的编码规则将ASN.1语法表示的抽象数据转换成具体的比特流。SNMP使用的编码方法是BER(Basic Encoding Rule)。BER的数据都由三个域构成:标识域(tag)+长度域(length)+值域(value)。 -In the specific system, we need specific ASN.1 encoding rules expressed in the abstract syntax data into a specific bit stream. SNMP is used in encoding BER (Basic Encoding Rule). BER data by the three tracts: Identity field (tag)+ length field (length)+ range (value).