Ah...I got ya. But wouldn't it be a small matter to remove the
Acct-Delay-Time before computing the MD5 checksums, and so detecting
retransmissions, as well, thus killing two birds with one stone?
As it stands now, these need to be detected by the billing report software,
correct?
Mike Nerone <mailto:[EMAIL PROTECTED]>
Network Operations Manager
Internet Direct, Inc. <http://www.idworld.net/>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
> Behalf Of Hugh Irvine
> Sent: Wednesday, March 08, 2000 9:32 PM
> To: Mike Nerone; [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]
> Subject: RE: IMPORTANT - RE: (RADIATOR) Duplicates Packets
>
>
>
> Hello Mike -
>
> On Thu, 09 Mar 2000, Mike Nerone wrote:
> > Well, for the purpose of this issue, we have to assume that for
> one reason
> > or another a duplicate packet did, in fact, arrive at
> Radiator's accounting
> > port. That's the only way this concern even comes into play.
> After all, why
> > build duplicate packet detection into Radiator unless it can detect
> > duplicate packets.
> >
> > I really suspect I'm misunderstanding something here, so please
> explain it
> > to me, because what I'm hearing is this scenario:
> >
>
> In this discussion, duplicate packet means exactly that - a
> packet that for
> some reason or other was duplicated within the network
> infrastructure. This can
> sometimes happen with queues on heavily loaded links, or multiple
> transmission
> paths when links go up and down (or flap).
>
> Duplicate *does not* mean a retransmission from a NAS after a
> timeout period
> has elapsed (and the Acct-Delay-Time has changed), hence the difficulty.
>
> hth
>
> Hugh
>
> --
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