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Diffstat (limited to 'docs/usecases/vhost/vhost03.rst')
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diff --git a/docs/usecases/vhost/vhost03.rst b/docs/usecases/vhost/vhost03.rst new file mode 100644 index 00000000000..ed583349bc6 --- /dev/null +++ b/docs/usecases/vhost/vhost03.rst @@ -0,0 +1,88 @@ +.. _vhost03: + +Bridge the Interfaces +--------------------- + +To connect the 2 interfaces we put them on an L2 bridge. + +Use the "set interface l2 bridge" command. + +.. code-block:: console + + vpp# set interface l2 bridge VirtualEthernet0/0/0 100 + vpp# set interface l2 bridge TenGigabitEthernet86/0/0 100 + vpp# show bridge + BD-ID Index BSN Age(min) Learning U-Forwrd UU-Flood Flooding ARP-Term BVI-Intf + 100 1 0 off on on on on off N/A + vpp# show bridge 100 det + BD-ID Index BSN Age(min) Learning U-Forwrd UU-Flood Flooding ARP-Term BVI-Intf + 100 1 0 off on on on on off N/A + + Interface If-idx ISN SHG BVI TxFlood VLAN-Tag-Rewrite + VirtualEthernet0/0/0 3 1 0 - * none + TenGigabitEthernet86/0/0 1 1 0 - * none + vpp# show vhost + +Bring the Interfaces Up +----------------------- + +We can now bring all the pertinent interfaces up. We can then we will then be able to communicate +with the VM from the remote system running Linux. + +Bring the interfaces up with :ref:`setintstate` command. + +.. code-block:: console + + vpp# set interface state VirtualEthernet0/0/0 up + vpp# set interface state TenGigabitEthernet86/0/0 up + vpp# sh int + Name Idx State Counter Count + TenGigabitEthernet86/0/0 1 up rx packets 2 + rx bytes 180 + TenGigabitEthernet86/0/1 2 down + VirtualEthernet0/0/0 3 up tx packets 2 + tx bytes 180 + local0 0 down + +Ping from the VM +---------------- + +The remote Linux system has an ip address of "10.0.0.2" we can now reach it from the VM. + +Use the "virsh console" command to attach to the VM. "ctrl-D" to exit. + +.. code-block:: console + + $ virsh console iperf-server3 + Connected to domain iperf-server3 + Escape character is ^] + + Ubuntu 16.04.3 LTS iperfvm ttyS0 + ..... + + root@iperfvm:~# ping 10.0.0.2 + 64 bytes from 10.0.0.2: icmp_seq=1 ttl=64 time=0.285 ms + 64 bytes from 10.0.0.2: icmp_seq=2 ttl=64 time=0.154 ms + 64 bytes from 10.0.0.2: icmp_seq=3 ttl=64 time=0.159 ms + 64 bytes from 10.0.0.2: icmp_seq=4 ttl=64 time=0.208 ms + + +On VPP you can now see the packet counts increasing. The packets from the VM are seen as **rx packets** +on **VirtualEthernet0/0/0**, they are then bridged to **TenGigabitEthernet86/0/0** and are seen leaving the +system as **tx packets**. The reverse is true on the way in. + +.. code-block:: console + + vpp# sh int + Name Idx State Counter Count + TenGigabitEthernet86/0/0 1 up rx packets 16 + rx bytes 1476 + tx packets 14 + tx bytes 1260 + TenGigabitEthernet86/0/1 2 down + VirtualEthernet0/0/0 3 up rx packets 14 + rx bytes 1260 + tx packets 16 + tx bytes 1476 + local0 0 down + vpp# |