snmpwalk -v 1 localhost -c public .1.3.6.1.4.1.2021.10.1.3.1
End of MIB
snmpwalk -v 2c localhost -c public .1.3.6.1.4.1.2021.10.1.3.1
UCD-SNMP-MIB::laLoad.1 = No more variables left in this MIB View (It is past the end of the MIB tree)
因为默认没有包含这个节点，所以只要把这个节点包含进去就可以了
vim /etc/snmp/snmpd.conf
view all included .1.3.6.1.4.1.2021
