Hi Hang, A common problem when working with tcp/udp in these sort of setups is offloading. Have you tried doing something like:
ethtool --offload vpp0 rx off tx off ip netns exec ns0 ethtool --offload vethns0 rx off tx off HTH, Florin > On Feb 21, 2017, at 10:19 PM, Hang Shi <hangshi...@gmail.com> wrote: > > Hi, > > I am trying to do tcp connection between two veth interfaces via switching in > VPP, as done in below wiki. The ping is successful, however, the TCP > connection failed for a TCP connection from a veth interface in one namespace > to another namespace. Tried on http and netcat server. Using latest git > master branch. Going to try earlier codes as this seems to be a basic > scenarios. Anyone has any quick ideas? > > Below are the steps/commands I tried: > > https://wiki.fd.io/view/VPP/Tutorial_Routing_and_Switching > <https://wiki.fd.io/view/VPP/Tutorial_Routing_and_Switching> > > > > > # create namespace ns0 > ip netns add ns0 > ip link add vpp0 type veth peer name vethns0 > ip link set vethns0 netns ns0 > ip netns exec ns0 ip link set lo up > ip netns exec ns0 ip link set vethns0 up > ip netns exec ns0 ip addr add 10.1.1.1/24 <http://10.1.1.1/24> dev vethns0 > ip link set vpp0 up > > #create namespace ns1 > ip netns add ns1 > ip link add vpp1 type veth peer name vethns1 > ip link set vethns1 netns ns1 > ip netns exec ns1 ip link set lo up > ip netns exec ns1 ip link set vethns1 up > ip netns exec ns1 ip addr add 10.1.1.2/24 <http://10.1.1.2/24> dev vethns1 > ip link set vpp1 up > > > # create host-interfaces for vpp0 and vpp1, and assign them to bridge domain 1 > vppctl create host-interface name vpp0 > vppctl create host-interface name vpp1 > vppctl set interface state host-vpp0 up > vppctl set interface state host-vpp1 up > vppctl set interface l2 bridge host-vpp0 1 > vppctl set interface l2 bridge host-vpp1 1 > > > > > # on HTTP Server terminal > root@aurora-vpp-vm1:~# ip netns exec ns1 python -m SimpleHTTPServer 80 > Serving HTTP on 0.0.0.0 port 80 ... > > > # on HTTP Client terminal > root@aurora-vpp-vm1:~# ip netns exec ns0 wget http://10.1.1.2:80 > <http://10.1.1.2/> > --2017-02-21 22:01:57-- http://10.1.1.2/ <http://10.1.1.2/> > Connecting to 10.1.1.2:80... > > > #also tried netcat, not working either. > > > thanks, > Hang > > > > _______________________________________________ > vpp-dev mailing list > vpp-dev@lists.fd.io > https://lists.fd.io/mailman/listinfo/vpp-dev
_______________________________________________ vpp-dev mailing list vpp-dev@lists.fd.io https://lists.fd.io/mailman/listinfo/vpp-dev
