On Thu, Sep 04, 2003 at 01:48:56PM -0400, Fruitman, Corey wrote:
>
> I'm not sure how RRDTool knows if you're using a 64- or 32-bit counter (to
> determine the rollover), but if you're not polling using SNMPv2, you probably
> should be.
A: previous counter value
B: current counter value
C = B - A /* compute delta */
if (C < 0) {
C += 2^32 /* select 32-bit counter */
if (C < 0) {
C -= 2^32 /* roll back 2^32 increase */
C += 2^64 /* select 64-bit counter */
}
HTH
Alex
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