Created a UDP solution that will not work due to file size, need help with WCF

Question

I created a UDP solution that would take a dataset, convert it to a byte arrray, compress it and send it.  The problem I have is UDP has a packet limitation that prevents me from sending the datasets reliably.  So I am now back to the drawing board again.  I need to send these files in a P2P or UDP program so I can have one "publisher" and many "subscribers" that would contact the publisher, register and start receiving the messages that the publisher is sending out.  Anyone have a suggestion on the new direction I need to take?  I am not looking for code per se, I just need to know how to create a publisher/subscriber architecture that will handle larger files transfers.

Thanks.

Answer 1

Hello, you can refer to http://msdn.microsoft.com/en-us/library/ms752254.aspx for a publish subscribe sample. It uses a duplex contract. If you want to support UDP, however, you need more work, as WCF 4 doesn't support UDP out of box (although WCF 4.5 Beta supports it). In WCF 4, you have to implement a custom transport layer to use UDP. Refer to http://msdn.microsoft.com/en-us/library/ms751494.aspx for a sample.

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