# /usr/bin/snmpget -v2c -c 'xxxxxxxx' -Pu -OQUst -m SNMPv2-MIB -M /opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp 'udp':'my-host':'161' sysObjectID.0 sysUpTime.0
sysObjectID.0 = enterprises.4413
sysUpTime.0 = 227811800
# snmpwalk -v 2c -c xxxxxxxx my-host sysUpTime
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (227812500) 26 days, 8:48:45.00
Thank you.