On Sep 18, 2008, at 5:23 AM, Roger Sundman wrote: > > Send TICTOC mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > https://www.ietf.org/mailman/listinfo/tictoc > or, via email, send a message with subject or body 'help' to > [EMAIL PROTECTED] > > You can reach the person managing the list at > [EMAIL PROTECTED] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of TICTOC digest..." > > > Today's Topics: > > 1. Re: TICTOC Digest, Vol 25, Issue 7 (Roger Sundman) > > > ---------------------------------------------------------------------- > > Sasha, > > No, I don't think 10 ms is enough for a stock exchanege at least not > this > particular week given the turbulence on the stock market, but for a > cash > register yes. >
(I renamed the thread.) Given that the financial people are concerned with millisecond delays, 10 msec is clearly not enough for some trading applications. See, e.g., http://www.usfst.com/currentissue/article.asp?art=275136&issue=281 “a millisecond advantage in trading applications can be worth $100 million a year to a major brokerage firm.” Much of their use of multicast is driven by such considerations. Whether they have thought this through or not is another question. Regards Marshall > Regards > Roger > > ----------------------------------------------------------------------- > > Roger, > > Just for the curiosity sake: > > Do you imply that the 10 ms time accuracy (available today with NTP) > is not > sufficient for > the financial market and/or cash registers? > > Regards, > Sasha > > > >> -----Original Message----- >> From: [EMAIL PROTECTED] >> [mailto:[EMAIL PROTECTED] On Behalf Of Roger Sundman >> Sent: Thursday, September 18, 2008 9:18 AM >> To: [email protected] >> Subject: Re: [TICTOC] TICTOC Digest, Vol 25, Issue 2 >> Today's Topics: >> >> 1. Requirements draft - call for assistance (Roger Sundman) >> >> >> ---------------------------------------------------------------------- >> >> Hi all, >> >> There is a need for traceable time in the financial market >> and there is a (coming?) directive from the EC comission for >> traceable > time >> for use in cash registers. Seismic exploration, military and > transportation >> ar some other applications. >> >> Best regards >> Roger >> >> >> Hi all, >> >> Yesterday the chairs and Silvana, who is co-editor of the >> requirements >> draft, >> discussed the progress of this draft. >> >> The requirements draft tries to cover quite a number of areas >> for which >> timing is relevant, >> and while there has been significant participation from the >> cellular and TDM >> PW communities, >> there has been inadequate input on most of the other areas. >> >> In particular, for the areas >> * industrial applications >> * test and measurement >> * electric power and teleprotection >> we have no data other than that "pulled out of the air" at the Paris >> meeting, >> and no one has expressed interest in providing insights into their >> requirements. >> >> On the one hand TICTOC needs to consider all of the >> applications that will >> need to distribute timing, >> but on the other hand if groups with interest in particular >> applications do >> not join in the effort, >> we will not be able to produce a meaningful document. >> >> Please consider this email as a call for participation for the >> aforementioned areas. >> If you are working or interested in them, please send an >> email to the list. >> If you know people who are, please forward this email to them. >> >> If we do not receive input that we believe reliably reflects the >> requirements of these areas, >> we will have to drop them from the document, and thus remove them >> from >> consideration >> while working on solutions. >> >> Y(J)S >> >> >> >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> http://www.ietf.org/pipermail/tictoc/attachments/20080918/24d9 > 7376/attachmen > t.htm > > ------------------------------ > > _______________________________________________ > TICTOC mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/tictoc > > > End of TICTOC Digest, Vol 25, Issue 2 > ************************************* > > > _______________________________________________ > TICTOC mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/tictoc > > > ------------------------------ > > _______________________________________________ > TICTOC mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/tictoc > > > End of TICTOC Digest, Vol 25, Issue 6 > ************************************* > > > _______________________________________________ > TICTOC mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/tictoc _______________________________________________ TICTOC mailing list [email protected] https://www.ietf.org/mailman/listinfo/tictoc
