SNMP agent provides different solutions according to different access granularities including the whole level, node level and variable level.Relevant definitions of MIB and DTD are given out.

• 通过定义一组有效的MIB变量和一个精简的DTD文档，针对全局级、节点级和变量级不同的访问粒度，提供不同的访问机制。