我有一个 perl 脚本，可以搜索我们的交换机以查找哪个交换机托管给定的 IP 地址；该脚本使用net-snmp库通过菊花链式以太网交换机（想想核心/分布/访问）进行轮询，直到找到主机连接的正确交换机。
这个脚本在我们大多数的 Linux 机器上运行良好，但我有一个脚本抛出了 STDERR 消息，抱怨缺少“zeroDotZero”SNMPv2-SMI
[mpenning@lnxlmf ietf]$ perl ~/findhost2.pl 192.0.2.30
192.0.2.30, 192.0.2.30, No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
0:1e:b:26:78:d9, No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
192.0.2.254, Gi5/44
[mpenning@lnxlmf ietf]$
我怎样才能停止显示错误信息？
答案1
net-snmp的默认副本SNMPv2-SMI对 zeroDotZero 有一个定义...
[mpenning@lnxlmf ietf]$ cd /usr/share/snmp/mibs/
[mpenning@lnxlmf mibs]$ grep zeroDotZero SNMPv2-SMI.txt
zeroDotZero OBJECT-IDENTITY
[mpenning@lnxlmf mibs]$
事实证明，我已SNMPv2-SMI.my在 Cisco MIB 目录中安装了 的旧副本...此副本SNMPv2-SMI.my没有 zeroDotZero 并且覆盖了net-snmp的副本，因此我将其删除。
[mpenning@lnxlmf mibs]$ cd /usr/share/snmp/mibs/cisco/
[mpenning@lnxlmf cisco]$ grep zeroDotZero SNMPv2-SMI.my
[mpenning@lnxlmf cisco]$ sudo rm SNMPv2-SMI.my
现在脚本运行没有问题了......
[mpenning@lnxlmf ~]$ perl findhost2.pl 192.0.2.29
192.0.2.29, 192.0.2.29, 0:27:e:22:9a:d5, core-switch2, 7/37
[mpenning@lnxlmf ~]$