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• 06-07-2009, 12:30 PM

  jjy2 Joined on 09-17-2007, 7:42 PM Posts 13

  Does "Bit Rate Throttling" work with ARR? Reply Contact I have tested with "default configuration" on iis 7 servers. From the windows task manager, I can see network graph goes like this 1. When disabled:             _________ begin ____|         |_____ end 2. When enabled and tested with an WMV (http://download.microsoft.com/download/3/9/0/3902e391-734e-470f-806b-4d779f07749f/PS_DEMO_320x180_1MB.wmv),     _   _   _   _ __||__||__||__||_...  +-10 seconds of no data transmission followed by 10 or more blocks of data, in few seconds interval, and the bandwidth is un-throttled even for each block of transmission.  3. When I tested with my own test .mp4 file, player waits until time-out and in fact there are no data transamission at all. Can some one please tell me what could be the problem? or maybe can't use Bit Rate Throttling with ARR? Thank you

  Tags: Bit Rate Throttling

• 06-07-2009, 12:53 PM

  In reply to

  anilr Joined on 05-23-2006, 6:13 PM Redmond, WA Posts 2,343

  Re: Does "Bit Rate Throttling" work with ARR? Reply Contact There are 2 ways that bit-rate throttling determines the bitrate for the file - one is auto-determining the bitrate of a media file and the other is manual bitrate configured for arbitrary files - the first method requires the bitrate module to seek into arbitrary locations of the file and thus requires the bitrate module to be running on the origin server and not at ARR, the second method (if you manually specify the bitrate in configuration) can work with bitrate module running on the ARR server. The other thing to look at is the minResponseBuffer setting of ARR - by default, ARR will buffer large amounts of data before sending to the client which is probably not the ideal thing for streaming media content - so, you may need to set the ARR minResponseBuffer setting to a low value. Anil Ruia Senior Software Design Engineer IIS Core Server

• 06-08-2009, 4:38 AM

  In reply to

  jjy2 Joined on 09-17-2007, 7:42 PM Posts 13	Re: Does "Bit Rate Throttling" work with ARR? Reply Contact Hi Anil Ruia, Thank you for your kind explanation. I will have a look at the two options you suggested, and try again. Thanks a lot

• 06-08-2009, 6:12 AM

  In reply to

  jjy2 Joined on 09-17-2007, 7:42 PM Posts 13

  Re: Does "Bit Rate Throttling" work with ARR? Reply Contact Hi Anil Ruia, I tested two different media files with the minResponseBuffer set to between 0  ~ 4 KB in the configuration file, tested with quick time and window media (the module is installed in content servers), now it works very well.  So thank you very much again. -------------------------------------------- Just thought it would be nice to be able to set the min response buffer size per mime type or something similar so that ARR is friendly to both streaming and non-streaming contents. Maybe I should go read version 2 information!

• 06-08-2009, 1:32 PM

  In reply to

  anilr Joined on 05-23-2006, 6:13 PM Redmond, WA Posts 2,343

  Re: Does "Bit Rate Throttling" work with ARR? Reply Contact We will consider minResponseBuffer per mime-type.  Not sure if it makes sense yet. In the meantime, you can "clone" your webfarm (create an identical one with another name) with different minResponseBuffer values and setup your rewrite rules to go to one webfarm or the other based on the content. Anil Ruia Senior Software Design Engineer IIS Core Server