Re: [SAGE] TCP Window Tuning for High Bandwidth/High Latency WAN links?

[Peter Van Epp <vanepp@sfu.ca>]

On Thu, Jul 21, 2005 at 02:19:20PM -0400, John Stoffel wrote:
> 
> Hi all,
> 
> We're getting ready to deploy the next step of a high speed WAN VLAN
> network between a bunch of remote offices for interoffice networking
> needs.  It's all going to be DS3s of various speeds with the vendor
> providing us with an ethernet port (100 mbs/full duplex) to plug into
> a router.  
> 
<snip>
	
	Funny that you should ask since I've just spent the last week at the
Internet2 Joint Tech conference seeing presentations about things just like
this (except usually at 10 gigs). There are a number of papers of interest
online here:

http://events.internet2.edu/2005/JointTechs/Vancouver/agenda.cfm?event=238

specifically this one on ssh for instance (its already with our ssh maintainer
with "me want bad" attached :-)):

http://events.internet2.edu/2005/JointTechs/Vancouver/sessionDetails.cfm?session
=2102&event=238

and you probably want to have a look at ndt and friends from the Network
performance workshop last weekend (ndt in particular will characterize the 
client workstation via a java app to the ndt server and make performance 
enhancing suggestions, although I haven't yet had time to play with it a lot 
I came out of the workshop with operating examples of all three tools ready 
to pop in to my network in my infinite spare time :-) and the workshop is highly
recommended if they offer it at the next JT.

http://e2epi.internet2.edu     

http://e2epi.internet2.edu/ndt/

Peter Van Epp / Operations and Technical Support 
Simon Fraser University, Burnaby, B.C. Canada