Subject: RE: [ipfix] Fwd: NetFlow v.x timestamp rollover

From: "Wijnen, Bert (Bert)" <[email-masked]>
Date: Mon, 12 Jan 2004 18:57:42 +0100

> > Time  Event
> > -------------------
> > T1    router uptime is 4294967290 ms.
> > T2    flow is created at sysUpTime of 4294967290.
> > T3    flow is ended at sysUpTime of 4294967296 ms.
> > T4    flow is expired at sysUpTime of 4294967297 ms.
> >
> > 4294967296 doesn't fit in 32 bits so the End time will be 0 due to
> > rollover.  The header sysUptime will then be 1.
> >

I would appreciate if you guys find another name for sysUpTime.
People may confuse it with the MIB sysUpTime value. But that
MIB related sysUpTime is represented in centi-seconds, not ms.

The original Netflow spec (on my plate right now for informational doc)
even had text in there that linked it to the MIB sysUpTime. And that
is wrong.

Bert

--
Help        mailto:[email-masked] and say "help" in message body
Unsubscribe mailto:[email-masked] and say
"unsubscribe ipfix" in message body
Archive     http://ipfix.doit.wisc.edu/archive/