GPS SA and Network Timing

["Eric Germann" <ekgermann () cctec com>]

During the recent attacks, there was a brief discussion as to whether the
USG had or would invoke GPS SA.  We have a client who is building a broad
ATM network and had planned to use GPS based timing solutions from TrueTime
for a clocking source, in addition to a feed from the LEC.

If GPS SA is invoked down the road during a crisis, what effect is there, if
any, on networks which rely on GPS for timing, not positioning?

Eric



==========================================================================
  Eric Germann                                        CCTec
  ekgermann () cctec com                                 Van Wert OH 45801
  http://www.cctec.com                                Ph:  419 968 2640
                                                      Fax: 603 825 5893

"It is so easy to miss pretty trivial solutions to problems deemed
complicated.  The goal of a scientist is to find an interesting problem,
and live off it for a while.  The goal of an engineer is to evade
interesting problems :)"  -- Vadim Antonov <avg () kotovnik com> on NANOG

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