Ask the folks at the NYSE. ;-) http://www.informationweek.com/story/showArticle.jhtml?articleID=163703141 - ferg -- "Patrick W. Gilmore" <patrick@ianai.net> wrote:

...

The Internet needs a PA system.

There is this sparsely deployed technology called multicast which would work for this application.

It barely works for any application. I hesitate to think how well it work work during unforseen failure modes. -- "Fergie", a.k.a. Paul Ferguson Engineering Architecture for the Internet fergdawg@netzero.net or fergdawg@sbcglobal.net ferg's tech blog: http://fergdawg.blogspot.com/