
У меня есть скрипт Perl, который просматривает наши коммутаторы, чтобы найти тот, на котором размещен заданный IP-адрес; этот скрипт использует net-snmp
библиотеки для опроса последовательно соединенных коммутаторов Ethernet (ядро/распределение/доступ), пока не найдет нужный коммутатор, к которому подключен хост.
Этот скрипт отлично работает на большинстве наших Linux-машин, но у меня есть один, который выдает сообщения STDERR, жалующиеся на отсутствие 'zeroDotZero' вSNMPv2-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]$
Как прекратить появление сообщений об ошибках?
решение1
net-snmp
Копия по умолчанию SNMPv2-SMI
имеет определение для zeroDotZero...
[mpenning@lnxlmf ietf]$ cd /usr/share/snmp/mibs/
[mpenning@lnxlmf mibs]$ grep zeroDotZero SNMPv2-SMI.txt
zeroDotZero OBJECT-IDENTITY
[mpenning@lnxlmf mibs]$
Оказывается, я установил старую копию SNMPv2-SMI.my
в свой каталог Cisco MIBs... эта копия SNMPv2-SMI.my
не имела zeroDotZero и переопределяла net-snmp
копию , поэтому я ее удалил.
[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
Теперь скрипт работает без проблем...
[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 ~]$