Subject: Re: 3/50 Ethernet speed
To: None <thorpej@nas.nasa.gov>
From: Scott J. Ellentuch <tuc@valhalla.stormking.com>
List: port-sun3
Date: 05/30/1995 13:48:52
In Jason Thorpe's own words (And I ">_") :
>
> On Tue, 30 May 1995 12:04:36 -0400 (EDT)
> "Scott J. Ellentuch" <tuc@valhalla.stormking.com> wrote:
>
> > Its megabits. And as for the program, I can post a copy if everyone
> > doesn't mind. Its only :
> >
> > 885 ttcp.c
>
> Ok, so one of the machines is a Sun running 4.1.1...what's the other
> one?
>
AIX 3.2.5 (13Mbit local loop)
>
> Is that with tcp or udp?
>
TCP
>
> After running ttcp, what does `netstat
> -i' tell you on each machine?
>
Sorry, I'll do that and get back...
>
> I mean, 2mbits for a sun3 isn't
> terrible...just for quick comparison (I haven't done a datailed
> analysis), an ftp between two 486-66 NetBSD-current machines with
> 16-bit SMC ethernet cards, both on the same relatively low-collision
> subnet achieves roughly 4.5mbits/sec.
>
Thats weird, what happened to 10Mbit?
>
> While ttcp is a useful program (we use it to test the speed of classical IP
> over ATM links a lot here...), it's output really isn't the only factor
> to consider when evaluating the overall performance of your network.
>
Suggestions? I'm going to short pay our provider today based
on these results.
Tuc