<font size=2 face="sans-serif">For your information.</font>
<br><font size=2 face="sans-serif">Regards</font>
<br><font size=2 face="sans-serif">Gian Paolo</font>
<br><font size=1 color=#800080 face="sans-serif">----- Forwarded by Gian
Paolo Calzolari/esoc/ESA on 06/03/2015 11:01 -----</font>
<br>
<br><font size=1 color=#5f5f5f face="sans-serif">From:
</font><font size=1 face="sans-serif">"Barkley, Erik
J (3970)" <erik.j.barkley@jpl.nasa.gov></font>
<br><font size=1 color=#5f5f5f face="sans-serif">To:
</font><font size=1 face="sans-serif">"Nestor.Peccia@esa.int"
<Nestor.Peccia@esa.int>, </font>
<br><font size=1 color=#5f5f5f face="sans-serif">Cc:
</font><font size=1 face="sans-serif">"CESG -- CCSDS-Engineering
Steering Group \(cesg@mailman.ccsds.org\) \(cesg@mailman.ccsds.org\)"
<cesg@mailman.ccsds.org></font>
<br><font size=1 color=#5f5f5f face="sans-serif">Date:
</font><font size=1 face="sans-serif">04/03/2015 21:32</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Subject:
</font><font size=1 face="sans-serif">[CESG] CSS Area
statement on use of cloud computing resources for CCSDS prototyping</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Sent by:
</font><font size=1 face="sans-serif">cesg-bounces@mailman.ccsds.org</font>
<br>
<hr noshade>
<br>
<br>
<br><font size=2 face="Calibri">CESG Chair,</font>
<br><font size=2 face="Calibri"> </font>
<br><font size=2 face="Calibri">Below please find the CSS Area statement
on cloud computing resources which has been discussed by the CCS WG chairs
and co-chairs for those WGs in the area with a need for prototyping.</font>
<br><font size=2 face="Calibri"> </font>
<br><font size=2 face="Calibri">Best regards,</font>
<br><font size=2 face="Calibri"> </font>
<br><font size=2 face="Calibri">-Erik</font>
<br><font size=2 face="Calibri"> </font>
<br><font size=2 face="Calibri"> </font>
<br><font size=2 face="Calibri">CSS area statement with regard to question
on cloud computing resources for interoperability prototyping:</font>
<br><font size=2 face="Calibri"> </font>
<br><font size=2 face="Calibri">Although not opposed to the use of cloud
computing resources for interoperable prototyping and testing, there are
questions and concerns that tend to call into question whether or not there
are benefits. The questions and concerns are along the following lines:</font>
<br><font size=2 face="Calibri"> </font>
<br><font size=2 face="Calibri">1) we may have extra
work to do and or considerations that need addressing if a particular piece
of software used in a prototype is not ready for a cloud type license.
For example, the CSTS work relies on ASN.1 compiler which as we understand
it is licensed and bound to a particular CPU and not necessarily licensed
for cloud computing usage. It seems likely that both NASA and ESA would
likely have this type of concern based on the compiler vendors being used.
To the extent that cloud computing continues to grow and evolve this
issue may lessen but in the immediate future is not clear that the CSTS
prototype work could be moved directly to the cloud without further licensing
negotiations.</font>
<br><font size=2 face="Calibri">2) If prototyping includes
not just functional testing but performance testing there could potentially
other issues such as connecting an agencies resources to the cloud for
real-time output; in this case use of cloud resources not represent testing
vs a typical operational deployment. However it does seem possible
to do some performance testing for certain types of protocols (not involving
the space link directly). </font>
<br><font size=2 face="Calibri">3) Our understanding
is that agencies that are utilizing cloud computing resources may in fact
have restrictions as to which cloud vendors they can and cannot work with.
It's unclear as to whether or not a single cloud provider can work with
all CCSDS member agencies or whether negotiations between cloud providers
would in fact have to occur (driven by the member agencies). It seems possible
that this could negate a potential cloud computing advantage relative to
the “traditional” approach of negotiating interoperability testing involving
agency DMZ considerations as that problem potentially reemerges in negotiating
between how secure various cloud vendors may or may not interact, etc.</font>
<br><font size=2 face="Calibri">4) The general sense
is that for CSS area prototype testing it tends to be point-to-point, one
implementation communicating with another. There may be an advantage here
in terms of not having to purchase hardware but there is also a consideration
that most of the agencies have a fair amount of hardware already in place.
If it the case that prototype testing needs to scale for many different
nodes in the prototype tested etc. then it likely a good fit for cloud
computing.</font>
<br><font size=2 face="Calibri">5) If there is a need
for a long-running inter-agency test bed for several recommendations, it
may make sense to do this in the cloud.</font>
<br><font size=2 face="Calibri"> </font>
<br><font size=2 face="Calibri">Bottom line: there does seem to be a potential
advantage in being able to quickly procure computing resources as opposed
to buying a particular hardware platform, etc. but there are also questions
and concerns which suggest that this advantage is not necessarily immediately
realizable.</font>
<br><font size=2 face="Calibri"> </font>
<br><font size=2 face="Calibri">Potential alternate approach: it seems
like it may be in fact reasonable to consider the use of cloud computing
resources to be at the discretion of the agency involved in doing a prototype
interoperation rather than have CCSDS as a whole considering which cloud
vendors etc. to utilize.</font>
<br><font size=2 face="Calibri"> </font><tt><font size=2>_______________________________________________<br>
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