On Mon, 17 Feb 2003, Matti Aarnio wrote:
> Date: Mon, 17 Feb 2003 12:35:53 +0200
> From: Matti Aarnio <firstname.lastname@example.org>
> To: Mark J Roberts <email@example.com>, firstname.lastname@example.org
> Subject: Re: Annoying /proc/net/dev rollovers.
> On Sun, Feb 16, 2003 at 08:21:56PM -0800, Chris Wedgwood wrote:
> > On Sun, Feb 16, 2003 at 08:46:05PM -0600, Mark J Roberts wrote:
> > > When the windows box behind my NAT is using all of my 640kbit/sec
> > > downstream to download movies, it takes a little over 14 hours to
> > > download four gigabytes and roll over the byte counter.
> > Therefore userspace needs to check the counters more often... say ever
> > 30s or so and detect rollover. Most of this could be simply
> > encapsulated in a library and made transparent to the upper layers.
> Some of my colleques complained once, that at full tilt
> the fiber-channel fabric overflowed its SNMP bitcounters
> every 2 seconds.
> "we need to do polling more rapidly, than the poller can do"
> The SNMP pollers do handle gracefully 32-bit unsigned overlow,
> they just need to get snapshots in increments a bit under 2G...
> (Hmm.. perhaps I remember that wrong, a bit under 4G should be ok.)
> > --cw
> /Matti Aarnio
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