[dpdk-dev] sending and receiving packets

[Prashant Upadhyaya]

Hi Gopi,

I have not worked with rumpkernel tcpip stack.
Does it run 'with' the DPDK in the userspace and is your tcp client application interacting over sockets to that tcpip stack in user space ?

If your stack is running in the kernel, then ofcourse you have to use a tap interface to interface with the kernel.

Can you describe your usecase in more details eg. what is the dpdk app, is the tcp client itself the dpdk app and so forth.

Normally, I use tcpclient/server as a normal linux kernel interfacing apps. I run a DPDK app and use a tap interface to switch packets in an out of the kernel. The kernel interacts over sockets with tcpclient/server as usual.

Regards
-Prashant


-----Original Message-----
From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Gopi Krishna B
Sent: Wednesday, October 16, 2013 8:13 PM
To: dev at dpdk.org
Subject: [dpdk-dev] sending and receiving packets

Hi,
I have DPDK 1.5 configured on my machine, I have also configured the rump kernel tcpip stack.

Now, to check whether the setup works, I started *TCP Server application*on another machine and connected the LAN cable to the port which is controlled by DPDK.
And I am running *TCP client application* on the machine having DPDK and rumpkernel tcpip stack.

The tcp client and server cannot communicate, is there some other configuration to be taken care for the traffic to flow appropriately on the machine running DPDK.
I have checked similar posts on the mailing list, but didnot get clue on how to debug the issue I am facing.
Any pointer/suggestions would be really of great help.

--
Regards
Gopi Krishna




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