0(1) org) dod(6) directory(1) mgmt(2) mib-2(1) system (1) interfaces (2) ip(4) icmp (5) tcp(6) udp (7 gp(8) transmission (10) p(11) experimental (3) private (4) enterprises(1) MIB-Ⅱ的分组结构Internet(1) directory(1) mgmt(2) mib-2(1) iso(1) org(3) dod(6) system (1) interfaces (2) at (3) ip (4) icmp (5) tcp (6) udp (7) egp (8) transmission (10) snmp (11) experimental (3) private (4) enterprises(1) MIB-Ⅱ的分组结构 例