[AG-TECH] Network Flow diagrams

Thu Jan 30 05:46:38 CST 2003

Following on from what Phil and then Andrew put together,
I've formatted a Word document which is perhaps easier to read
and has added info about DPPT and RPPT - which hopefully I've
understood enough to get in the right place.

I offer it as something that can be corrected and added to by those
with accurate knowledge.  As anyone in our organization knows,
I am a complete ignoramus with respect to networks, but seem to
need to spend quite a bit of time speaking to network people,
so would find an authoritative version of this information
incredibly useful.  I certainly don't lay claim to being the
author but am happy to be the editor.

I'll attach it as both Word and plain text - sorry I don't have
easy access to put it up on the web for review just now.  I haven't obeyed
any sort of conventions in this - it just seems important for us
to gather the information in as precise a form as possible first,
and then get it into AGDP form when the information has been
collected.

I know nothing about bridges, so maybe someone can provide that
information.

I have separated DPPT client (adding that to the Display Machine's
list), DPPT server and DPPT master - please correct or expand that
if I've got it wrong.

I think some of the entries under "All AG Nodes" should be split
off into "Machines running a Beacon" but haven't done that in case
I'm wrong.

In the same section, I have marked some lines that should perhaps
say 'server' instead of 'client' - just a cut and paste byproduct,
I think.

It may be useful to tie some of the ports to the way they are set;
e.g. the port used by DPPT seems to be settable in DPPT Server Set,
so perhaps this connection should be recorded, as I have done for
the X-Windows form of VNC (hopefully using the correct terminology).

Perhaps people would like to send any comments to the list, which
I'll pick up and incorporate as long as no-one else disagrees.

Anyone any thoughts on the most useful form?  Web table?

Cheers

Chris

____________________________________________________________________
Chris Osland                         Office tel: +44 (0) 1235 446565
Digital Media and Access Grid      Medialab tel: +44 (0) 1235 446459
BIT Department             Access Grid room tel: +44 (0) 1235 445666
e-mail:   C.D.Osland at rl.ac.uk               Fax: +44 (0) 1235 445597

CLRC Rutherford Appleton Laboratory (Bldg. R18)
Chilton, DIDCOT, Oxon OX11 0QX, UK

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-----Original Message-----
From: Andrew Shewmaker` [mailto:shewa at inel.gov]
Sent: 20 January 2003 15:23
To: ag-tech at mcs.anl.gov
Cc: Philip J McCormick
Subject: Re: [AG-TECH] Network Flow diagrams

On Mon, 20 Jan 2003 12:30:47 +0000
Philip J McCormick <mccormick at uk.ibm.com> wrote:

> I've had a look in the AG docs for a diagram that shows the ports and
> network protocols used by the applications running on the AG machines
> (Display, Audio and Video), but I can't find one. Does anyone know the
> location of such a diagram or have one they can send me?
> 
> I've knocked up a quick example of the kind of thing I need. I'll use this
> one if there aren't any others out there......does it look correct?
> anything missing?
> 
> (See attached file: net_flow.jpg)
> 
> Thanks
> 
> Phil McCormick
> MCCORMIC at UK.IBM.COM

You will probably want to add:

Display: access grid beacon server (HTTP TCP 9999), NTP (TCP/UDP 123), 
         VNC (TCP 5800,5900,others?)
Video:   NTP (TCP/UDP 123), SSH (TCP/UDP 22)
Audio:   NTP (TCP/UDP 123), SSH (TCP/UDP 22)

But I'm just a beginner and there are probably others I've missed, or 
perhaps people are using different VNC ports.

Andrew

-- 
Andrew Shewmaker
Associate Engineer
Phone:  208.526.1415
Fax:  208.526.4017

Idaho National Engineering and Environmental Laboratory
2525 Fremont Ave.
Idaho Falls, ID 83415-3605

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