File transfer speed between Hong Kong and Johannesburg, South Africa

Luan Nguyen luan20176 at
Wed Jul 31 14:06:32 UTC 2013

Just a note on this thread, we got everything sorted out. There was a
little asymmetric routing going on, but the great folks at HGC was very
quick in helping us fix this.
We had some problem with HGC support at the Hutch before, but they are
great and fast now. At the other end in Johannesburg, we have our sister
company and Ruhann was great with helping us out.
In the end, with the Riverbed we get 1.5MBytes/sec bidirectional for SMB2
(active/active SQL database log shipping). With High-Speed TCP setting, we
could get to 7MBytes/sec.



On Thu, Jul 11, 2013 at 9:47 PM, Larry Sheldon <LarrySheldon at> wrote:

> On 7/11/2013 10:32 AM, Clayton Zekelman wrote:
>> It all depends on the air speed velocity of an unladen swallow, and
>> varies if it is African or Eurpoean.
>> In all seriousness, you need to know the speed and latency of the link
>> before that question can be answered.
>> At 10:04 AM 11/07/2013, Luan Nguyen wrote:
>>> Hello folks,
>>> Does anyone know what's the average speed for windows file transferring
>>> (SMB2) between Hong Kong and Johannesburg?
>>> Any guide on how to calculate/estimate this?
> An old-timers-uncalibrated-guess"  If you are going to do large transfers
> using a protocol designed (for want of a term) for local area networks with
> near-fault free performance over a long multihop network, you are not going
> to like it.
> What criteria drive the selection of such an unlikely protocol?
> --
> Requiescas in pace o email           Two identifying characteristics
>                                         of System Administrators:
> Ex turpi causa non oritur actio      Infallibility, and the ability to
>                                         learn from their mistakes.
>                                           (Adapted from Stephen Pinker)

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