You are only going to transmit within the confines of your slowest network
segment and any processor/WLM or I/O delays.  Over the years there I have
experienced a number of weird things that can dramatically affect ftp.  I
am sure that others can chime in.  Tracking this down is going to take some
effort.

I would suggest a traceroute and ping test for starters.  Then to a packet
trace for portion of the ftp.  I am sure your network folks have some tools
to help out.

Rob Schramm

On Fri, Aug 31, 2018, 1:26 PM Jousma, David <
[email protected]> wrote:

> Mark,
>
> You keep saying G as in Gigabit speeds, but are you sure you don’t mean M
> as in Megabit speeds?   Unless you have really good 5Gigabit upload service
> from your house...That said I'm going to assume you mean 100Mb connection,
> that’s not real fast....how much data are you talking about?
>
> -----Original Message-----
> From: IBM Mainframe Discussion List <[email protected]> On Behalf
> Of Mark Pace
> Sent: Friday, August 31, 2018 11:21 AM
> To: [email protected]
> Subject: Re: z/OS network Speedtest
>
> We have a customer that has to send us a large amount of data.  They claim
> that our ftp server is very slow.  I have had our network people tell me
> that we have 100GB pipe to our ftp server and if they say it's slow it is
> most likely their upload speed.  I have tested the upload speed to our ftp
> server from my home network but I am limited to 5G upload speed, which I
> easily reach during the upload.  So I was looking for something the
> customer to run to test their upload speed.
>
> On Wed, Aug 29, 2018 at 4:35 PM Kevin Mckenzie <[email protected]>
> wrote:
>
> > > Is there anything for z/OS to measure upload/download speeds? Like
> > > on a
> > PC
> > > going to speedtest.net and running their test?
> >
> > From the z/OS LPAR to where?  What's the purpose of the measurement?
> > Can you prevent other network traffic from happening when you're doing
> > the measurement?
> >
> > ---
> > Kevin McKenzie
> >
> > External Phone: 845-435-8282, Tie-line: 8-295-8282 z/OS Test Services
> > - Test Architect, Provisioning
> >
> > ----------------------------------------------------------------------
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> > email to [email protected] with the message: INFO IBM-MAIN
> >
>
>
> --
> The postings on this site are my own and don’t necessarily represent
> Mainline’s positions or opinions
>
> Mark D Pace
> Senior Systems Engineer
> Mainline Information Systems
>
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