[Sis-ipo] Draft RID Resolutions

[Lloyd Wood]

Greg,

the user encapulated serial stream RID responses document gives in the rationale:

"The rationale given for transferring IP as a user provided serial stream is that commercial routers will become ubiquitous in space and that these COTS routers can be purchased for flight and ground with almost no development required.  However, the need for this routing functionality in space has never been demonstrated."

There are COTS routers on the International Space Station. A Cabletron router was put up in the Russian module a few years back. More recently:

http://www.nasa.gov/home/hqnews/2007/mar/HQ_SS0714_station_status.html

"The crew worked on an upgrade to the laptop computer network. The new, integrated station computer network will be 10 times faster than the current network, using Ethernet connectivity over a router and either cables or wireless equipment. This will eliminate drag-through cables from the U.S. segment into the Russian segment."

.. in other words, the US is actually relying on that Cabletron router in the Russian module for its onboard equipment, and recognises the need for more routers onboard - and this will enable hatches to close without snagging on cables to the high technology on the Russian side.

And descriptions of the HP Procurve switches selected for the Columbus module are at:
http://h41111.www4.hp.com/procurve/uk/en/space/station.html

I think that puts the lie to that 'never'. Wherever you have humans, you'll have Internet routers.

L.

At Thursday 12/07/2007 12:56 -0700, Greg Kazz wrote:
>Dear SIS-IPO members,
>
>Draft RID (Review Item Dispositions) resolutions have been now posted to the CCSDS CWE SIS-IPO subdirectory.  You can view them at:
>
>http://cwe.ccsds.org/sis/docs/Forms/AllItems.aspx?RootFolder=%2fsis%2fdocs%2fSIS%2dIPO%2fDRAFT%20RID%20Resolutions&FolderCTID=&View=%7b390C4ADA%2dA69B%2d4E52%2dA0DA%2d50C48F989C4B%7d
>
>If that URL does not work, try using the following steps:
>
>1. Login to CWE
>2. go to SIShome (tabs on the top)
>3. Select the SIS-IPO directory on the left
>4. go to the Draft RID Resolutions directory
>
>Please let me know if you have any comments concerning these draft resolutions.
>We will discuss them at the SIS-IPO meeting near Darmstadt in October.
>
>best regards,
>
>Greg Kazz
>Chairman CCSDS SIS-IPO
>
>
>
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Cisco router in space tested: ftp://ftp-eng.cisco.com/lwood/cleo/README.html
-- 
Lloyd Wood           lwood at cisco.com          http://www.cisco.com/go/space
space initiatives manager, Cisco Systems Global Government Solutions Group
11 New Square, Bedfont Lakes, London. +44-20-8824-4236 cell:+44-7730-711075