Re: [Geopriv] GEOPRIV Experiment at IETF 71

From: Winterbottom, James ^lt;>
Date: Fri Apr 04 2008 - 18:10:57 EDT

Alas a lot of the traffic stats, at least from a LIS query perspective we don't have.
We are working on adding these to the LIS so that we will at least have daily stats when we run it again in July.
As for SNMP from the LIS there wasn't any, NetDisco collected all the information, and we simply got it from netdisco.


-----Original Message-----
From: on behalf of Karl Heinz Wolf
Sent: Fri 4/4/2008 7:52 AM
To: Richard Barnes
Subject: Re: [Geopriv] GEOPRIV Experiment at IETF 71
Hi Richard,

since I haven't been at the meeting, could you please tell me more
about the outcome of the GEOPRIV experiment?
I think it would be interesting to the list to know your experience
with the location determination.
I'll post a few questions that came to my mind and it would be great
to get an answer.
Any problems with the setup? Is NetDisco suitable? What about the SNMP
traffic caused by your setup? How often did you do the SNMP querries?
Did you collect data in advance or did you do the location
determination on demand? How many switches/access points did you
query? How many clients were in your database? How did you detect
changes/new clients in the network? How long did a location request

Thanks in advance.

karl heinz

On Tue, Mar 11, 2008 at 5:26 AM, Richard Barnes <> wrote:
> Hi all,
> Wanted to let folks know about an experiment that some participants from
> the GEOPRIV working group have put together for this IETF. Using the
> IETF network infrastructure as a location source, we've set up a
> location server [1] that offers location information over the HTTP-based
> HELD protocol [2]. It works like this:
> +--------+ +-----+ +---------------------+
> | Client |---HELD----| LIS |-----------| IETF (NetDisco [3]) |
> +--------+ +-----+ +---------------------+
> 1. Client submits HELD request
> 2. LIS queries NetDisco (over an ad-hoc interface) for location of an IP
> 3. NetDisco returns civicAddress XML for the AP to which the requested
> IP is connected, e.g.:
> <civicAddress
> xmlns="urn:params:xml:ns:pidf:geopriv10:civicAddr">
> <country>US</country>
> <A1>Pennsylvania</A1>
> <A3>Philadelphia</A3>
> <A6>Market</A6>
> <STS>Street</STS>
> <HNO>1201</HNO>
> <PC>19107</PC>
> <ROOM>Franknlin 1/2</ROOM>
> </civicAddress>
> 4. LIS inserts civicAddress into PIDF-LO into locationResponse and
> returns to Client
> The HELD server is written in PHP, and is based on the open-source HELD
> LIS written by Andrew Co. [4].
> We have two clients for you to try out:
> 1. I wrote a small Java application [5] that pulls location from the
> HELD server and posts it as the status of a Jabber account. For
> instance, while I was in SIPPING this afternoon, my status was:
> "
> Current location:
> Civic Address:
> Franklin 1/2
> 1201 Market Street
> Philadelphia, PA 19107
> "
> Note: This app runs *alongside* your usual Jabber client, as a separate
> client, so you don't need to change anything about how you use Jabber.
> Requires Java 1.6.
> 2. Along with the open-source LIS from Andrew Co, there's Java client
> library and GUI that shows most of the features in
> draft-ietf-geopriv-http-location-delivery-05, including the creation and
> management of location references (URIs that refer to location). You
> can download it at [6] (Note: (1) you need to download both the client
> library and the GUI; (2) requires Windows and Java 1.6.)
> 3. Karl Heinz Wolf from has enhanced the Zap! SIP client so that
> it will access location and send it out in SIP messages [7]
> If you do give these tools a try, please send feedback to me and to the
> GEOPRIV working group list, <>.
> Thanks a lot,
> --Richard
> [1] <>
> [2] draft-ietf-geopriv-http-location-delivery-05
> [3] <>
> [4] <>
> [5] <>
> [6] <>
> <>
> [7] <>
> _______________________________________________
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