Thanks Peter. We didn't know this limit is so small. I'm not sure but in Firefox seems to be of 4 parallel requests, isn't?<br><br><div class="gmail_quote">2010/9/10 Peter Körner <span dir="ltr"><<a href="mailto:osm-lists@mazdermind.de">osm-lists@mazdermind.de</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Am 10.09.2010 14:42, schrieb DGIS Devels:<div class="im"><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Is the number of tiles requested simultaneously limited in OpenLayers? I<br>
would like to know how long I have to wait (timeout) to have a whole map<br>
with a high number of tiles.<br>
</blockquote>
<br></div>
Most browsers have a hard-coded limit of 2 parallel Requests per Domain to avoid flooding servers with requests.<br>
<br>
The limit is per Domain, not per IP, which is why you can trick around this limit by using multiple domains to point to your tile-server (<a href="http://a.tile.myserver.net" target="_blank">a.tile.myserver.net</a>, <a href="http://b.tile.myserver.net" target="_blank">b.tile.myserver.net</a>, <a href="http://c.tile.myserver.net" target="_blank">c.tile.myserver.net</a>).<br>
<br>
If is, for example, done on <a href="http://osm.org" target="_blank">osm.org</a>:<br>
<a href="http://www.openstreetmap.org/openlayers/OpenStreetMap.js" target="_blank">http://www.openstreetmap.org/openlayers/OpenStreetMap.js</a><br>
<br>
Peter<br>
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</blockquote></div><br>