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need help on UDP packet sendto

Hello,

I have a UDP socket and i just want to send a message every time I get an SRIO doorbell.  So that means, yes, I have merge the srioDioISRExample with the NDK UDP helloWorld example.  (I won't say quite successfully yet, since I have this odd behavior.)

It seems I negotiate and set up the ndk ok.

I open a sock and send a message to register with the ARP table.  I see on wireshark this message appears and the corresponding IP responds back with its IP address.

Then I Task_Sleep(100).

Then I begin sending UDP packets and nothing more will appear on my wireshark.  However, I am still getting Doorbells on SRIO. 

Any advice?  I looked through Section 3.4.1 of SPRU523G.  I changed my network scheudler priority to HIGH and all the other tasks NORM.  there is an idea about "needing L2 cache" but I read on another post (#148073) that is out of date and not needed.

Please help,

brandy