Snmp Oid

[arix]

I find there 2 OIDs can show me how many bytes coming out from the switch in MIB RFC1573.
One is 32bit version, and other is 64bit version.
Does anyone can tell me:
What difference between these 2 OID?
Which one I should use if I want to monitor the bytes coming out?

32bit:
.1.3.6.1.2.1.2.2.1.16
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifOutOctets
64bit:
.1.3.6.1.2.1.31.1.1.1.10
.iso.org.dod.internet.mgmt.mib-2.ifMIB.ifMIBObjects.ifXTable.ifXEntry.ifHCOutOcte ts

Thanks!

[nbakker]

You want to use the 64bit one for switches (>10MBit/s interface). The difference is that the 32bit counter will rollover much faster than the 64bit due to the higher byte count on faster interfaces.

[arix]

thanks you