[EAS] CAP Polling Interval Questions

Alex Hartman goober at goobe.net
Wed May 11 07:02:29 CDT 2011


Email might be a bad example (only if there's no audio file attached
to the CAP message, which i'm guessing is going to be the case 99% of
the time), but Akamai is also a bad example, as it's a distributed
service, and a private business.

31,000 web hits for a text file isn't horrible, no, i just don't like
the "centralized" nature of the system, that's all, i see it as a weak
point. Should a router or two in chicago start flapping, while the
"self-healing" nature of the Internet takes place, this can delay
message retrieval quite badly, upwards of several minutes actually.

The reason i mention the infrastructure design is because, as a
designer and manufacturer of the clients, i would think you guys might
have had some input at some point on how the system works as a whole.
I can't possibly be the only person who thinks the design is severely
flawed. But, Government knows best, right? ;)

--
Alex Hartman

On Wed, May 11, 2011 at 1:21 AM,  <ed.czarnecki at monroe-electronics.com> wrote:
> Alex - please do not construe my comments to be defense of the IPAWS architecture, or any state architecture for that matter.
>
> As someone working for a manufacturer of CAP EAS encoder/decoders, our task is designing the "client" not the server.
>
> We've been told that the IPAWS alerts will be published via RSS feed (the example of an email server doesn't fit here - web server is more like it).  The government's task is to design their own architecture that can take a minimum of 31,000 web hits.  That is not huge compared to some systems out there - as a loose comparison, Akamai right now in the week hours of the morning is handling 1.89 million views per minute, for substantially heavier content than the RSS XML feed that IPAWS will be publishing.  They handled a peak of 3.59 million VM today.
>
> Edward Czarnecki, Ph.D.
> Senior Director - Strategy, Development and Regulatory Affairs
> Monroe Electronics, Inc. / Digital Alert Systems
> ed.czarnecki at monroe-electronics.com
>
> www.monroe-electronics.com
> www.digitalalertsystems.com
>
> _______________________________________________
> This is the EAS Forum Discussion List
>
> Please invite your friends to join our Forum!
> http://lists.radiolists.net/mailman/listinfo/eas
>
> And, remember the main page: http://eas.radiolists.net
>



More information about the EAS mailing list