[EAS] Single point entry of CAP messages
Harold Price
hprice at sagealertingsystems.com
Fri May 20 16:56:14 CDT 2011
At the FCC/FEMA forum at the FCC HQ several months ago, someone from
Akamai was on the panel. I don't think FEMA is overlooking the
possibility of CDN use.
As I said in a previous response, we may end up with two paths, one
for the normal, quick response of "no, nothing to see here", and a
second path (CDN) for quick delivery of larger messages with audio.
When implementers get on these forums and talk about all the multiple
access methods, security, redundancy, latency, SSL, digital
signatures, it sounds very complex. To some extent, it is, but it is
almost identical to what happens when you access almost any web
page. Packets are sent, lists of files to download are obtained, the
files are downloaded. I just accessed the CNN home page -
1.5Mbytes. 170 different files, at least 20 different IP addresses
(Ads and tracking). No magic involved.
And getting a CAP message is a lot simpler.
DTV, satellite, high speed RF links, each will be added as time goes
on (many are already in use in various locations). Each addition
will make the system better. Even CAP with simple internet access is
an instant improvement over legacy EAS in areas where there is
internet but the LP1/2 is just too far away.
Harold
At 12:25 PM 5/20/2011, Marcos O'Rourke wrote:
>I will also say that if FEMA is using a CDN and they provide a domain
>name instead of an ip address they could have servers in every data
>center in the country and it would appear as a single server to the
>users.
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