[rescue] Re: The Practical Guide to FDDI

[Robert Novak]

On Fri, Mar 28, 2003 at 11:20:58AM -0600, Phil Brutsche wrote:
> Joshua Snyder wrote:
> >This didn't sound correct to me, I have seen systems pushing 700Mbit
> >bi-directionally without using jumbo frames.  So I did a google for the
> >gigabit white paper, http://www.10gea.org/GEA1000BASET1197_rev-wp.pdf  I
> 
> Fairly certain.  I certainly never could get more than 20MB/sec without 
> fudging with the frame size.

I had an E450 running Networker 6, and I consistently streamed 40MB/sec
over the hme interface with no tuning to the hme interface. Got the same
when we moved to the ge (PCI Gigabit Ethernet 2.x) card. Once again, no
tuning, and I don't think 'ge' defaults to large frames, since that might
break things with older/non-jumbo-compatible switching gear. 

I know that doing dd pipes got me even faster transmission over hme and
ge, once again without tuning. The 40MB/sec was probably a limitation of 
my scsi controller (it was LVD, but I'm not sure the Solaris driver for
it was as good as I'd wished for--the other stuff was striped/mirrored 
over multiple controllers and buses). 

> 
> Knowing the configuration of the systems you saw would certianly help.
> 
> I guess I'll have to try it again.
> 
> -- 
> 
> Phil Brutsche
> phil at tux.obix.com
> _______________________________________________
> rescue list - http://www.sunhelp.org/mailman/listinfo/rescue

-- 
Robert Novak, Indyramp Consulting * rnovak at indyramp.com * indyramp.com/~rnovak
	"I don't want to doubt you, Know everything about you
      I don't want to sit Across the table from you Wishing I could run."