[Css-csts] FW: BB1 and BB2

[John Pietras]

Yves and members of the CSTSWG,
In support of the International Space Station, RT Logic has developed
Blue Book v2-compliant versions of the RAF, RCF, and FCLTU transfer
services, the first such "upgrading" from the INTEGRAL/Red Book version
of the API software to be developed in the US. In the process of
performing the upgrade, they have documented the changes from Red Book
to Blue-2. Mr. Jerry Meleski of RT Logic has offered to present their
results at the January workshop in Colorado Springs. I am unaware of any
documentation of the specific changes that must be made to a Red
Book-conformant implementation to make it Blue-2 compliant, and I think
that this would be a valuable addition to the formal documentation of
the SLE/CSTS suite, perhaps as a Magenta book.

In developing the schedule for the January Workshop, please consider
adding a slot of time for Mr. Meleski or one of his colleagues to
present their findings. Perhaps it could be included as part of an SLE
specification maintenance session. 

As you'll see in the copy of Mr. Meleski's message below, they would
also be able to comment on their findings regarding performance
limitations of the SLE services. These findings might apply not only to
the existing SLE transfer services, but also to the CSTS toolkit
operations that are currently under development.

Best regards,
John

John Pietras
Global Science & Technology, Inc. (GST)
7855 Walker Drive
Suite 200
Greenbelt, Maryland, USA
20770-3239
Direct:   +1-240-542-1155
GST Main: +1-301-474-9696
Fax:      +1-301-474-5970

-----Original Message-----
From: Jerry Meleski [mailto:jmeleski at rtlogic.com] 
Sent: Tuesday, October 10, 2006 6:47 PM
To: John Pietras
Cc: Lance.Williams at afscn.com
Subject: RE: BB1 and BB2

John,

We would be honored to participate.  Our presentation would discuss the
red/blue 2 comparison and would be limited in scope to the transfer
services
implemented in our COTS products in going from red book transfer
services
(for Lance's interoperability study and the AFRL PUGPU effort) to the
blue
book 2 versions of the transfer services for NASA Johnson.  

We would also be prepared to discuss some additional items such as where
we
believe the SLE protocol tops out in performance (with some details
about
the implementation we've chosen), our Linux-based implementation,
version
negotiation and the SLE API, and the status and forward plans for the
customers that we are working with.

Please let us know which of these would be of interest and how much
presentation/interactive time we should plan for.  If there is a process
for
proposing a session that we should use, we'll be glad to use it.  If you
can
get us signed up, that's even better.

Thanks,
Jerry

-----Original Message-----
From: John Pietras [mailto:john.pietras at gst.com] 
Sent: Tuesday, October 10, 2006 11:42 AM
To: jmeleski at rtlogic.com
Cc: Lance.Williams at afscn.com
Subject: RE: BB1 and BB2

Jerry,
As a member the CCSDS Cross Support Transfer Services (CSTS) working
group, which is responsible for maintaining and updating the SLE books,
I can assure you that your comparison of the Red Book and Blue-2
versions of the SLE specs would be of significant interest to the
community. 

I think that you saw in subsequent emails that there will be meeting in
Colorado Springs on 23-26 January. Much of the CSTSWG's agenda for that
week will be involved with the development of the new CSTS architecture,
but I believe that a separate session could be arranged to discuss your
results and how to get them into the formal CCSDS documentation tree.
(Briefly - CSTS is a refactoring and augmentation of the SLE
specifications to concentrate common SLE functionality into a set of
"toolkit" operations and procedures that can be combined and augmented
to more easily create new SLE-derived services).

Would you like me to propose a session to discuss your comparison to the
CSTSWG chairman? 

John


<snip>
> From: Jerry Meleski [mailto:jmeleski at rtlogic.com]
> Sent: Thursday, September 14, 2006 9:47 AM

...
> As we develop the implementation for BB2 we are recording the changes
> between the red book implementation used for PUGPU interoperability
> testing
> and BB2.  We believe that this information has value to the community
> and
> our customer.  As of now, we can confirm that BB2 is not backward
> compatible
> to red book.  We had heard that there may be a CCSDS summit conference
> in
> Colorado Springs early next year and are interested in participating.

...
 
> Jerry