Florin, thanks a lot!

In the vpp / src/scripts/vnet/uri/tcp-setup.sh there is a code to setup network 
topology with namespaces:
ip netns add vppns1
  ip link add veth_vpp1 type veth peer name vpp1
  ip link set dev vpp1 up
  ip link set dev veth_vpp1 up netns vppns1

  ip netns exec vppns1                          \
  bash -c "
    ip link set dev lo up
    ip addr add 6.0.1.2/24 dev veth_vpp1
  "

  ethtool --offload  vpp1 rx off tx off
  ip netns ex

But I don’t see how I should config VPP to make it work. Does it mean I don’t 
have to do anything with vpp? Where is this LD_PRELOAD library?

Thanks,
Vadim


From: Florin Coras [mailto:fcoras.li...@gmail.com]
Sent: Thursday, February 23, 2017 01:27
To: Sukhomlinov, Vadim <vadim.sukhomli...@intel.com>
Cc: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] "TCP Shortcuts" for containers

Hi Vadim,

Code is still under development. We plan to merge the TCP stack and the shared 
memory FIFO code prior to 17.04 FC0. In the mean time, you can check a draft of 
what’s been done until now here [1]. Note however that most of the code is 
still in a state of flux.

HTH,
Florin

[1] https://gerrit.fd.io/r/#/c/5150

On Feb 22, 2017, at 8:31 PM, Sukhomlinov, Vadim 
<vadim.sukhomli...@intel.com<mailto:vadim.sukhomli...@intel.com>> wrote:

Hi All,

On wiki there is slidedeck 
https://wiki.fd.io/view/File:Fdio_minisummit_-_containers_(theme).pptx which 
mention handling of TCP connections between namespaces thru FIFO Shared Memory 
buffers. However, I can’t find where it’s implemented and what is “official” 
name for this feature and how to configure VPP and application to use it.  I’m 
also very interested in performance data for this approach.

Thanks in advance,
Vadim
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