net-snmp 扩展 MIB , mib tree节点为简单变量（即标量）的源代码-net-snmp extension MIB, mib tree node for the simple variables (ie, scalar) source code

This Extension Agent implements one of each type of scalar variable defined for use in SNMPv1 (i.e. INTEGER, OCTET STRING, OBJECT IDENTIFIER, Counter, Gauge, TimeTicks, IpAddress, and Opaque), and a columnar list and table.