As I understand, SNMP Management Information Base databases are used by Network Management Stations to translate data from SNMP agents into understandable form. For example in case of *sysUpTimeInstance*:
$ snmpwalk -v 2c -c public 10.10.10.1 sysUpTimeInstance
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (28267576) 3 days, 6:31:15.76
$
..I guess it is thanks to MIB that 28267576 is converted into 3 days, 6 hours, 31 minutes, 15.76 seconds? Now I searched for the correct MIB file to see this translation:
$ grep -ir sysUpTimeInstance /usr/local/share/smi/mibs/
/usr/local/share/smi/mibs/ietf/DISMAN-EVENT-MIB:sysUpTimeInstance OBJECT IDENTIFIER ::= { sysUpTime 0 }
/usr/local/share/smi/mibs/ietf/DISMAN-EVENT-MIB: DEFVAL { sysUpTimeInstance }
/usr/local/share/smi/mibs/ietf/DISMAN-EXPRESSION-MIB:sysUpTimeInstance OBJECT IDENTIFIER ::= { sysUpTime 0 }
/usr/local/share/smi/mibs/ietf/DISMAN-EXPRESSION-MIB: DEFVAL { sysUpTimeInstance }
$
..and looks like it is defined in
/usr/local/share/smi/mibs/ietf/DISMAN-EVENT-MIB file. How should I understand this sysUpTimeInstance OBJECT IDENTIFIER ::= { sysUpTime 0 }?
Asked by Martin
(8156 rep)
Jul 3, 2015, 03:01 PM
Last activity: Mar 7, 2025, 03:45 PM
Last activity: Mar 7, 2025, 03:45 PM