Re: [earlywarning] Final Charter Text. Thanks!

"Thomson, Martin" <Martin.Thomson@andrew.com> Mon, 31 May 2010 23:22 UTC

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From: "Thomson, Martin" <Martin.Thomson@andrew.com>
To: Hannes Tschofenig <Hannes.Tschofenig@gmx.net>, "earlywarning@ietf.org" <earlywarning@ietf.org>
Date: Tue, 1 Jun 2010 07:24:02 +0800
Thread-Topic: [earlywarning] Final Charter Text. Thanks!
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Subject: Re: [earlywarning] Final Charter Text. Thanks!
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I'm OK with this.

> -----Original Message-----
> From: earlywarning-bounces@ietf.org [mailto:earlywarning-
> bounces@ietf.org] On Behalf Of Hannes Tschofenig
> Sent: Tuesday, 1 June 2010 7:13 AM
> To: earlywarning@ietf.org
> Subject: [earlywarning] Final Charter Text. Thanks!
> 
> Thank you all for participating in this charter discussion. I plan to
> submit the following charter text to the RAI ADs within the next 24
> hours. I included a few minor wording changes based on the very recent
> feedback on the list.
> 
> Brian D., James P. + Martin T.: Please browse through the text to see
> whether you are happy with it.
> 
> Ciao
> Hannes
> 
> ----------------------------------------------
> 
> 
> Authority to Citizen Alert (ATOCA)
> ==================================
> 
> There are a variety of mechanisms that authorities have available to
> notify citizens and visitors during emergency events. Traditionally,
> theyhave done so with broadcast networks (radio and television). For
> commercial mobile devices, broadcasting services such as the Public
> Warning System (PWS), the Earthquake and Tsunami Warning System
> (ETWS), and the Commercial Mobile Alert System (CMAS) are
> standardized and are in various stages of deployment.  The Internet
> provides another way for authority-to-citizen alerts to be sent, but
> it also presents new challenges. While there are some existing
> layer 2 mechanisms for delivering alerts, the work in this group
> focuses on delivering alerts to IP endpoints only.
> 
> The general message pattern that this group is intended to address is
> the sending of alerts from a set of pre-authorized agents (e.g.,
> governmental agencies) to a large population without impacting
> layer 2 networks (e.g. causing congestion or denial of service).
> 
> The goal of this group is not to specify how originators of alerts
> obtain authorization, but rather how an ATOCA system can verify
> authorization and deliver messages to the intended recipients. A
> critical element of the work are the mechanisms that assure that
> onlythose pre-authorized agents can send alerts via ATOCA, through
> an interface to authorized alert distribution networks
> (e.g., iPAWS/DM-Open in the U.S.).
> 
> The ATOCA effort is differentiated from and is not intended to
> replace other alerting mechanisms (e.g., PWS, CMAS, ETWS), as the
> recipients of ATOCA alerts are the wide range of devices connected to
> the Internet and various private IP networks, which humans may have
> "at hand" to get such events, as well as automatons who may take
> action based on the alerts. This implies that the content of the
> alert contains some information, which is intended to be consumed
> by humans, and some which is intended to be consumed by automatons.
> 
> Ideally, the alerts would contain, or refer to media other than text
> media (e.g., audio and/or video). The initial work in the group is
> focused on small messages, which may be mechanically rendered by the
> device in other forms (text to speech for example). Future work in
> the group may investigate rich media.
> 
> In situations of a major emergency there could be scenarios
> where there are multiple alerts generated that may require that a
> priority mechanism (defined by alert originator policy) has to be
> used. The work on a resource priority mechanism is out of scope of
> the initial charter, but may be revisited at a later date.
> 
> Which devices should get alerts is primarily driven by location.
> The first set of recipients that must be catered for are those
> within the area identified by the alert originator to be affected
> by the emergency event.  In many jurisdictions, there are regulations
> that define whether recipients/devices within the affected area have
> opt-in or opt-out capability, but the protocols ATOCA will define
> will include both opt-in and opt-out mechanisms. The group will
> explore how to support both opt-in and opt-out at the level of
> communication protocols and/or device behavior.
> 
> Another class of recipients that are in scope of the work are
> explicit opt-in subscriptions which ask for alerts for a specified
> location, not necessarily the physical location of the device itself.
> An example of such a subscription would be 'send me alerts for
> location x' (previously determined as the location of interest).
> This work may build on existing IETF GEOPRIV location work.
> 
> There are efforts in other fora on early warning, which will be
> considered in this effort.  For example, we expect to make use
> of the OASIS Common Alerting Protocol (CAP) for the encoding of
> alerts.  OGC, ATIS, TIA, ITU-T, ETSI and 3GPP also have alert
> efforts underway, and consultation with these efforts will be
> undertaken to avoid unnecessary duplication of effort and also
> to avoid unintentional negative impacts on the networks. Of course,
> existing protocols for delivering messages (e.g., SIP) will be the
> basis for the message delivery system of this working group.
> 
> The security implications of mechanisms that can send alerts to
> billions of devices are profound, but the utility of the mechanism
> encourages us to face the problems and solve them. In addition, the
> potential performance and congestion impacts to networks resulting
> from sending alert information to billions of devices must be
> considered and solved if such a service is implementable. To avoid
> manual configuration of servers distributing alerts a discovery
> mechanism will be specified.
> 
> Milestones
> 
> 
> TBD Initial document for "Terminology and Framework" document.
> A starting point for this work is
> draft-norreys-ecrit-authority2individuals-requirements.
> 
> TBD Initial document for conveying alerts in SIP.
> A starting point for this work is draft-rosen-sipping-cap
> 
> TBD	  Initial document for conveying alerts through point to
> multipoint methods.
> 
> TBD      Initial document for locating the alerting server for a
> geographic region. A starting point for this work is
> draft-rosen-ecrit-lost-early-warning.
> 
> TBD	  Initial document addressing security, performance and
> congestion issues for alert distribution.
> 
> TBD	  Initial document for interfacing existing alert
> distribution systems.
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