[ovs-discuss] For help about ssh between vms through ovs-dkdp

Daniele Di Proietto diproiettod at vmware.com
Wed May 20 12:46:55 UTC 2015


This might be related to offloading features.

Could you try again with this qemu "-device" option and let us know?
-device 
virtio-net-pci,netdev=net1,csum=off,gso=off,guest_tso4=off,guest_tso6=off,g
uest_ecn=off


Kevin, do you this we should mention this in INSTALL.DPDk.md?


On 20/05/2015 10:39, "钢锁0310" <liw at dtdream.com> wrote:

>i build the vm-ovsdpdk-vm environment by using vhost-cuse
>
>
>the cmd is following
>
>
>ovs-vsctl add-br br0 -- set bridge br0 datapath_type=netdev
>ovs-vsctl add-port br0 tap0 -- set Interface tap0 type=dpdkvhost
>ovs-vsctl add-port br0 tap1 -- set Interface tap1 type=dpdkvhost
>
>qemu-system-x86_64 cirros.img -m 2G -vnc :1 -object
>memory-backend-file,id=mem,size=2G,mem-path=/dev/hugepages,share=on -numa
>node,memdev=mem -mem-prealloc -netdev type=tap,id=net1,script=no,vhost=on
>-device virtio-net-pci,netdev=net1
>qemu-system-x86_64 cirros.img -m 2G -vnc :2 -object
>memory-backend-file,id=mem,size=2G,mem-path=/dev/hugepages,share=on -numa
>node,memdev=mem -mem-prealloc -netdev type=tap,id=net1,script=no,vhost=on
>-device virtio-net-pci,netdev=net1
>
># add ovs flow
>ovs-ofctl add-flow br0 in_port=1,action:output=2
>ovs-ofctl add-flow br0 in_port=2,action:output=1
>
>
>mac of vm1 is 00:00:00:00:00:01   vm2 is 00:00:00:00:00:02
>
>
>ping form vm1 to vm2 is ok, but ssh is not ok
>
>
>On vm1 run ssh to vm2,   Run tcpdump on vm2,  the catching packet as
>follow
> 
>
>
>it seems the packets is all wrong
>
>
>Anyone meet this situation?
>
>
>*********************
>RTFSC
>*********************
>
>
>



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