Gustavo F. Padovan » TCP http://padovan.org/blog a hacking life Fri, 23 Jul 2010 22:30:07 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 How ERTM will work on BlueZ http://padovan.org/blog/2009/07/how-ertm-will-work-on-bluez/ http://padovan.org/blog/2009/07/how-ertm-will-work-on-bluez/#comments Thu, 09 Jul 2009 07:06:35 +0000 padovan http://padovan.org/blog/?p=65 I spent the last days studying how Enhanced Retransmission Mode(ERTM) should be implemented on L2CAP. Marcel recommended me to look at TCP[0] code. ERTM on L2CAP is very similar to TCP. Both have retransmission support, recovery error,  acknowledgment of packets and timers.

That means that ERTM implementation will look like TCP implementation[1] on Linux. So, there is no need to write ERTM from scratch, I’ve already started to code and I’m basing my code on  TCP code to get started with ERTM.

[0] http://en.wikipedia.org/wiki/Transmission_Control_Protocol
[1] http://vger.kernel.org/~davem/tcp_output.html

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