Ack... If those are def 4 different domains (sources) then it def sounds like a Silverlight networking stack issue. I'll double check that after I get to the office.
I'm not aware of any similiar restrictions that the browserwould put on the plug in. Someone on the list might know differently (if it's a browser issue vs the plug in)? Have you tried this in other browsers? FF/Chrome? Caleb Jenkins [email protected] m: 469.867.4552 | b: developingUX.com [*] Improving - It's what we do! (send from Windows Mobile 6) -----Original Message----- From: John OBrien <[email protected]> Sent: Monday, June 22, 2009 6:41 AM To: [email protected] <[email protected]> Subject: RE: Silverlight limited to 2 simultaneous connections? I think you may be onto something Jordan. The application that has brought this to my attention is not server restricted but I appreciate your comments Caleb, they are great general suggestions but it seems that Silverlight is ignoring them. Take a look at: http://soulsolutions.com.au/silverlight/blacklight/ It is rendering 6 Bing map controls inside a single Silverlight application. The tiles are coming from 4 different domains and yet only two request at a time are coming from Silverlight. I'm using IE8. The performance is horrible, you have to wait for each DeepZoom image to complete before the next one starts. Fiddler confirms sets of 2 requests. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jordan Knight Sent: Monday, 22 June 2009 9:22 PM To: [email protected] Subject: RE: Silverlight limited to 2 simultaneous connections? I'd have thought it would be a lowest common denominator problem myself... the crappest browser can do 2 at once so thats what Silverlight supports to maintain the best compat? -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Caleb Jenkins Sent: Monday, 22 June 2009 9:13 PM To: [email protected] Subject: RE: Silverlight limited to 2 simultaneous connections? John - generally that's a server restriction, and something that has been well documented on for IIS as well as various strategies in the HTML communities have been developed to help "get around" this. For IIS its important when you are using IIS as an application / middle teir / wcf server with an IIS front end web server. In that scenario you still want the limitation from the front end server to the clients, but you want to increase the allowed cnnection from the app server to the UI server. The more general html/web strategies involve breaking you resources in to various sub domains/servers. Images.domain /css/js/html can be placed on various "domains" to increase your simultanious connections from 2 to 8. The other strategy is to increase individual payloads and decrease number of requests. This plays out by combining multiple images on to a single image and the using css and css "sprite" support to slice and lay out the images client side. Take a look at the bing.com home page for an exaple of that. The "blurry" boxes are actually attached to the main image. Hope that helps! (I'm going to blame all typo's on my phone's "intelli-type" and the complete lack of a spell check :) Caleb Jenkins [email protected] m: 469.867.4552 | b: developingUX.com [*] Improving - It's what we do! (send from Windows Mobile 6) ________________________________ From: John OBrien <[email protected]> Sent: Monday, June 22, 2009 2:16 AM To: [email protected] <[email protected]> Subject: Silverlight limited to 2 simultaneous connections? Anyone know why Silverlight2 seems to be restricted to 2 simultaneous requests only? I have changed the browser settings to allow 8, put in 4 different domains to allow for 8 and even used firefox that supports 8 natively with no luck. 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