RE: Ethernet Characteristics re: packet loss
This is for a collision environment. One you go to swicthed, this
problem goes away, and is limited by the processing capability of the
source/destination and any swithc elements between.
Regards,
Ed Grivna
Cypress Semiconductor
>
> The 40% utilization characteristics reminds me of coax medium. I do not
> think
> it is true of full duplex media, unless I am missing the context some how.
>
> Regards,
>
> Devendra Tripathi
> VidyaWeb, Inc
> 90 Great Oaks Blvd #206
> San Jose, Ca 95119
> Tel: (408)226-6800,
> Direct: (408)363-2375
> Fax: (408)226-6862
>
> > -----Original Message-----
> > From: owner-stds-802-3-hssg@xxxxxxxx
> > [mailto:owner-stds-802-3-hssg@xxxxxxxx]On Behalf Of Stout, Tony
> > Sent: Monday, March 19, 2001 8:51 AM
> > To: 'stds-802-3-hssg@xxxxxxxx'
> > Subject: Ethernet Characteristics re: packet loss
> > Importance: Low
> >
> >
> > I have a quick question.... someone made a statement that it is a
> > characteristic that once you go above 40% LAN capability, the you
> > will begin
> > to lose packets. This doesn't seem to hold water with me. I recently
> > performed a test whereby we injected packets at 100%, 75%, 50%,
> > 25% 10% & 5%
> > network capability. We had 2 laptops, 1 desktop (PIII dual processor), a
> > LAN Analyzer, and a SmartBits 200 generator -- at 100% both the
> > laptops 40%
> > of the packets we were sending -- the desktop captured 70% --- in
> > both cases
> > the application running on the platforms was using 100% of the processing
> > time. -- my suspicion is that this is where the packets are being
> > loss -- in
> > the processing arena.
> >
> > Can you shed any light on this?
> >
> > Thank you,
> >
> > Tony Stout
> > JITC
> > Information Systems Test Director
> >
> > Phone: 301-744-2690
> > Mobile: (301) 399-9078
> > Fax: 301-744-2688
> >
> > JITC Webpage: http://misd.ncr.disa.mil/misd
> >
> >
> > <<Tony Stout (E-mail).vcf>>
> >
>