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Re: File transfer speed between Hong Kong and Johannesburg, South Africa


From: Nick Hilliard <nick () foobar org>
Date: Thu, 11 Jul 2013 18:51:41 +0100

On 11/07/2013 18:14, Luan Nguyen wrote:
We do have Riverbed Steelhead appliances at both end.
According to calculation, maximum throughput can be attained is ~330KB/sec.
With the Riverbed "cold" transfer, we should get ~600KB/sec. But I can only
get ~250KB/sec with the Steelhead doing its stuff for 500M file so plenty
of time for whatever to kick in.  Iperf and netperf show great results
though.
I guess I will be sampling results hourly for comparison.

I can't think of a worse protocol you could use in this situation.  Well
maybe if it were layered on top of IPX...

You may want to consider alternative proposals for handling file transfer
between these two locations.  E.g. google docs, office 365, etc.
Alternatively something simple like using mounts which are r/w on one side
but r/o on the other, and using tools like rsync to mirror the r/w on the
local side to the r/o mount on other.  Live SMB filesharing is a disaster
over large rtt links.

Nick



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